13 gcts press catalog

8/15/2019 13 GCTS Press Catalog

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GCTS 2013 CATALOG

Table of Contents

About Us .................................................................................................................................................................................................... 3Vision ......................................................................................................................................................................................................... 3Mission Statement ..................................................................................................................................................................................... 3Corporate Commitments ........................................................................................................................................................................... 3Company Products & Services .................................................................................................................................................................. 4

Rock Testing Systems ........................................................................................................... 5Digital Point Load Testing System (PLT-100) ........................................................................................................................................... 6Digital Point Load Testing System (PLT-110) ........................................................................................................................................... 7Digital Rock Direct Shear System (RDS-100) ........................................................................................................................................... 8Servo-Controlled Rock Direct Shear System (RDS-200) .......................................................................................................................... 9Servo-Controlled Rock Direct Shear System (RDS-300) ........................................................................................................................ 10Uniaxial Testing System (UCT-1000) ...................................................................................................................................................... 11

Rapid Triaxial Rock Testing System (RTR-1000) ................................................................................................................................... 12Triaxial Rock Testing System (RTX-1000) .............................................................................................................................................. 13Triaxial Rock Testing System (RTX-1500) .............................................................................................................................................. 14Hydraulic Fracture Test System (HFRTC-100) ....................................................................................................................................... 15

Rock Testing Components .................................................................................................. 16Rock Deformation Device (DEF-5000) .................................................................................................................................................... 17Indirect Tension (Brazilian) Apparatus for Rocks (RIT-B) ....................................................................................................................... 18Compression Frames (FRM4-1000) ........................................................................................................................................................ 19Pressure Intensifier System (HPVC-070) ................................................................................................................................................ 20Pressure Intensifier System (HPVC-140) ................................................................................................................................................ 21

Air/Oil Pressure Booster (HPC-070) ........................................................................................................................................................ 22High Pressure Triaxial Cell (HTRX-020) ................................................................................................................................................. 23

High Pressure Triaxial Cell (HTRX-070) ................................................................................................................................................. 24High Pressure Triaxial Cell (HTRX-070L) ............................................................................................................................................... 25High Pressure Triaxial Cell (HTRX-140) ................................................................................................................................................. 26High Pressure Triaxial Cell (HTRX-200) ................................................................................................................................................. 27Heavy Duty Laboratory Coring Machine (RCD-200) ............................................................................................................................... 28Pressure Controlled Coring Machine (RCD-250) .................................................................................................................................... 29Specimen Grinder (RSG-200) ................................................................................................................................................................. 30Specimen Flatness Gage (RFG-100) ...................................................................................................................................................... 31

Soil Testing Systems ........................................................................................................... 32Servo Controlled Consolidation Apparatus (CRS-10) ............................................................................................................................. 33Direct Shear Testing System for Soils (SDS-100) ................................................................................................................................... 34Direct Shear Testing System for Soils and Asphalts (SDS-150) ............................................................................................................. 35Servo-Controlled Simple Shear Testing System (SSH-100) ................................................................................................................... 36Dynamic Hollow Cylinder Testing System (HCA-100) ............................................................................................................................ 37Poly-Axial Test System (SPAX-2000) ..................................................................................................................................................... 38Resilient Modulus and Asphalt Testing System (MRT-300) .................................................................................................................... 39Resonant Column/ Torsional Shear Testing System (TSH-100 & TSH-200) .......................................................................................... 40Pneumatic Soil Triaxial Testing System (STX-050) ................................................................................................................................ 41Cyclic / Stress-Path Soil Triaxial System (STX) ...................................................................................................................................... 42Frozen Soil Triaxial System (FSTX-100) ................................................................................................................................................. 43Unsaturated Soil Triaxial Testing System (USTX-2000) ......................................................................................................................... 44Soil-Water Characteristic Cell (SWC-150) .............................................................................................................................................. 45


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Soil Testing Components .................................................................................................... 46 Load Frame (FRM-10P) .......................................................................................................................................................................... 47 Load Frame (FRM-100) ........................................................................................................................................................................... 48 Soil Axial Deformation Device (DEF-6100) ............................................................................................................................................. 49 Soil Circumferential Deformation Device (DEF-SRCP) ........................................................................................................................... 50 Large-Scale Deformation Device (DEF-S1600) ...................................................................................................................................... 51

Soil Triaxial Cell (TRX) ............................................................................................................................................................................ 52 Unsaturated Soils Triaxial Double Cell (TRX-2C) ................................................................................................................................... 53 Large-Scale Soil Triaxial Cell (TRX-600) ................................................................................................................................................ 54 Controlled Gradient Consolidation Apparatus (TRX-CRX) ...................................................................................................................... 55 Diffused Air Flushing Device (DAF-200) ................................................................................................................................................. 56 Volume Change Device (VCD-400) ........................................................................................................................................................ 57 Pressure Control Panel (PCP-200) ......................................................................................................................................................... 58 Pressure Panel & Pressure Volume Controller (PCP-2000 & PVC-100 Series) ..................................................................................... 59 Fredlund Thermal Conductivity Sensor (FTC-100) ................................................................................................................................. 60

Asphalt, Concrete & Other Construction Materials .......................................................... 61

Servo-Pneumatic Asphalt Testing System (ATM-010)............................................................................................................................62 Servo-Hydraulic Asphalt Testing System (ATM-025) ..............................................................................................................................63

Resilient Modulus and Asphalt Testing System (MRT-300)....................................................................................................................64

Stand-Alone Beam Flexural Fatigue Apparatus (BFF-5) ........................................................................................................................65

Servo-Controlled Superpave Gyratory Compactor (GRC-20) ................................................................................................................. 66 Deformation Sensor Holder (IDT-DEF) ................................................................................................................................................... 67

Asphalt Coring Machine (ACD-150) ........................................................................................................................................................ 68 Specimen Lab Saw (RLS-100) ................................................................................................................................................................ 69 Dynamic Loading System (DLS-050) ......................................................................................................................................................70 Pull Out Test for Skin Friction and Rock Anchor Pullout Test (PFT-060) ................................................................................................71 Universal Testing Machine (UTM) ...........................................................................................................................................................72

Testing Accessories ............................................................................................................73

LVDT Calibration Device (DCD-025) ....................................................................................................................................................... 74 Temperature Control System (TCS-100) ................................................................................................................................................ 75

Ultrasonic Velocity Test System (ULT-100) ............................................................................................................................................ 76 P & S Ultrasonic Sensors (ULT-SNR) ..................................................................................................................................................... 77 Seismic Down-Hole Testing System (SRV-100) ..................................................................................................................................... 78 Hydraulic Power Supply with Smart Controller (HPS) ............................................................................................................................. 79

Software & Electronics ........................................................................................................80 Advanced Computer Aided Testing Software (CATS-ADV) ....................................................................................................................81 Direct Shear Software Module (CATS-DSH) ...........................................................................................................................................82 Resilient Modulus Software (TRX-MRT) .................................................................................................................................................83 Soil Triaxial Software Module (CATS-TRX-SOIL) ...................................................................................................................................84 Rock Triaxial Software Module (CATS-TRX-ROCK) ...............................................................................................................................85

Resonant Column/Torsional Shear Module (CATS-RC) ......................................................................................................................... 86

Point Load Test Software (PntLoad) ....................................................................................................................................................... 87 Digital Signal Input and Control Unit (SCON-300) .................................................................................................................................. 88 Universal Digital Signal Conditioning and Control Unit (SCON-1500) .................................................................................................... 89 Universal Digital Signal Conditioning and Control Unit (SCON-2000) ....................................................................................................90 Digital Servo Control Upgrade .................................................................................................................................................................91

Products Not Featured in this Catalog.... ...........................................................................92


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About Us

• GCTS is a manufacturing company that provides solutions to research and productive activities through engineering, manufacturingand installation of specialized systems

• A GCTS system performs at the highest levels of reliability, providing efficient systems that satisfy customer needs and expectations

• We reach our corporative goals supported through our highly qualified professional team, excellent information systems andinfrastructure that allows satisfying the demands of our clients.

Vision

We are a company with international prestige that manufactures high tech equipment.

Our products and services provide a high added value that satisfies the necessities and expectations of our clients in anymarket.

Our Company reaches new levels of competitive success in which to obtain benefit to our shareholders, our employees, our

clients, and the communities in which we operate. GCTS activities include Integral relationships with:

o End users (universities, research centers and engineering companies)o Technological partners, suppliers and sub-contractors.

Mission Statement

• GCTS mission is to advance the state of the practice in materials testing while simplifying the equipment operation

Corporate Commitments

Quality Policy

o The satisfaction of our clients and the continuous improvement are the reasons of being of our company

Policy of Ethics

o We are an institution with: Integrity. Honest and responsible people.

Commitments With Our Professional Team

o We have highly qualified professionals stimulated by their development and enterprising potential.

Continuous Improvement And Permanent Innovation

o We continuously innovate and develop through research activities to design diverse equipment for new applicationsthat respond to the current and future market requirements


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About the Principals

J. MANUEL PADILLA is the president of the company. He more than 20 years of experience in designing, fabricating, assembling, andsetting up soil and rock testing systems. He has traveled the globe in setting up testing systems and training new clients to use them atmore than 100 locations. As a Ph.D. in geotechnical engineering, he understands not only instrumentation and testing procedures, butalso the application of the test results to engineering problems. In addition to being familiar with all the hardware components, includingthe signal conditioning and other electronics, he is also expert in software development and application. He is the primary creator of thesoftware package used to drive the GCTS systems.

WILLIAM N. HOUSTON is a senior consultant to the company. He has 40 years of teaching, research, and consulting experience (17years at UC Berkeley and 23 years at Arizona State University) and is a registered professional civil engineer. His teaching and researchhave included a major component of laboratory experimental work and, as a university professor; he has taught thousands of students

how to use soil testing equipment. His consulting work has ranged broadly across geotechnical engineering from soil testing laboratorydesign and set-up to soil property determination to slope stability, earthquake engineering, and unsaturated soil behavior. His experiencequalifies him to judge not only the precision with which properties can be measured with soil testing apparatus but also the precision thatis needed for application to engineering problems.

SANDRA L. HOUSTON is a consultant to the company. She has 20 years of teaching, research, and consulting experience and is aregistered professional civil engineer. Her teaching and research have emphasis in numerical methods and computer applications. Shehas taught hundreds of students how to develop and use software packages for geotechnical engineering applications. Her research andconsulting have also involved unsaturated soil problems, especially fluid flow and collapsing soil behavior.

Company Products & Services

Geotechnical Consulting and Testing Systems, LLC provides selection and design of laboratory and in-situ testing apparatus andsoftware ranging from modification and adaptation of existing apparatus to the purchase of new closed-loop computer-controlledsystems. The company manufactures a full line of computer-controlled testing systems with electro-mechanical, pneumatic or hydraulicloaders. Each system comes with a versatile software package which provides test control, data acquisition, data reduction, andgraphing in one easy to learn Graphical User Interface. Testing capabilities include static and dynamic loading of soil, rock, and otherconstruction materials. Advanced testing capabilities include hollow cylinder, simple shear, and poly-axial systems with optionalupgrades for testing unsaturated soils. Dynamic tests include liquefaction, modulus, damping, resilient modulus, and ultrasonic velocitymeasurements. Other laboratory tests are also possible through the use of a general purpose multiple function generator and dataacquisition that allows the user to design his/her own test procedures.

The primary service of the company is testing system design and integration. The testing experience and background of the staff enableus to ensure that a testing system not only works at its final destination but can also be made to generate meaningful data. Among

GCTS personnel and consultants are specialized engineers and technicians with a vast experience in instrumentation, electronics,mechanics, manufacturing and other testing equipment related fields. The company has a fully equipped machine shop.


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Rock Testing Systems


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Digital Point Load Testing System (PLT-110)

• 100 kN (22 kips) load capacity; larger capacitiesavailable

• Compact, light design (< 14 kg.)

• Output display in SI units

• Digital output with 10 N (or 1 pound) resolution• Automatic specimen size gauging option• Dual signal outputs to a computer or data recorder

• Software for fast and automatic testing

• Increases test production and minimizesoperational errors

• Internal battery operation

• Optional ultrasonic velocity point load platens

• Platens and cells are available to perform Triaxial,Uniaxial and Brazilian tests

DESCRIPTION

The GCTS Point Load Tester is an apparatus made of high-strength anodized-aluminum that incorporates digital technologyto increase precision and ease of use while reducing its size andweight. The introduction of a pressure sensor to measure loadprovides a betteraccuracy at any load level eliminating the imprecision oftraditional pressure gauges at low load ranges.

The system has a digital display that continuously monitorsapplied load. The maximum load is automatically stored andeasily obtainable by pressing a button.

Other options include: platens, triaxial cells, and frames forperforming uniaxial and triaxial tests on small specimens. Theseoptions include software that captures the complete stress-straincurve and automatically calculates strength parameters.

SPECIFICATIONS

Display: . . . . . . . . . . . . . Full 4-digit display calibrated in SI units(kN). Includes 40-segement bar graph around the display in % fulscale

Electrical: . . . . . . . . . . . . 3.6 V C-size lithium battery.

Max. Daylight Opening: . . Vertical—125 mm

. . . Horizontal—100 mmLoad Capacity: . . . . . . . . . 100 kNStroke: . . . . . . . . . . . . . . . .54 mm

SHIPPING

Standard Weight: . . . . . . 26 kg (57 lbs)Standard Volume: . . . . . .81 cm x 51 cm x 32 cm

. . . . . . (32” x 20” x 12.5”)


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Digital Rock Direct Shear System (RDS-100)

• Manual control of double acting (push/pull) 100 kN(10 ton) shear load actuator with 25 mm stroke &50 kN (5 ton) normal load capacity with 25 mm

stroke

• Normal load stiff reaction frame mounted on slidingbearings to minimize horizontal friction whilekeeping the normal load vertical throughout the fullshear displacement

• 150 mm (6") inside diameter sample rings forspecimens up to 150 mm high

• Precise Digital Display with Peak Value Memory

• A/D Automatic Data Acquisition with USB interface• Windows 98/NT/2000/XP software for automatic

data logging and reporting of direct shear testswith real time graphical display of test progress

• Economically priced

Multy Stage Direct Shear Test

0

3

6

9

12

15

18

0 1 2 3 4 5 6 7

Shear Displcement, mm

S t r e s s ,

M P a

1

1.5

2

2.5

3

3.5

4

D i s p l a c e m e n t , m m

Shear Stress, τ

Normal Stress, σ

Normal Displacement

DESCRIPTION

The GCTS Direct Shear System for Testing Rocks is a simple

and inexpensive device for testing a wide range of rockspecimen configurations. Cylindrical cores, cubes, prisms, androck fragments can be used to determine the shear strength.

This system features electronic sensors and digital displays tomonitor the loads and deformations. A standard A/D automaticdata acquisition with USB interface is included with the systemto automatically log and reduces the test data. The includedsoftware program accepts inputs from the shear and normalload sensors, the shear deformation, and up to four normaldeformation sensors (the software calculates automatically theaverage normal deformation).

Two air/oil booster pumps operating from 800 kPa (100 psi)compressed air allow the user to easily set and maintain thenormal load and the shear displacement rate. Pressure sensorsare used to monitor the loads but load cells are also offered asan option. The shear pump includes a 4-way valve to easilyreverse the loading direction. The air/oil booster pumps, digitaldisplays, and all the control valves are set on an easy-to-usefront panel housed in a metal cabinet.

Specimens are cured within removable specimen rings and thendrop inside the shear box allowing the preparation of multiplespecimens using additional rings increasing test production.

GCTS also offers a fully computer-controlled servo-hydraulicdirect shear machine (see RDS-200)

SPECIFICATIONS

Contact GCTS for full specifications

SHIPPING

Volume: . . . . . . . . . 1.4 m3Weight: . . . . . . . . . . 600 kg


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Servo-Controlled Rock Direct Shear System (RDS-300)

• Closed loop servo control of double acting(push/pull) 300 kN (30 ton) shear load actuatorwith ±50 mm stroke and 300 kN (30 ton) normalload capacity with 100 mm stroke

• Includes adjustable locking mechanism to preventrotation of the top box in any one direction, twodirections, or none (fixed so that no shear planerotations are allowed)

• Accepts 150 mm (6") diameter samples & 100 x100 mm cubical specimens up to 150 mm high

• Software for automatic performance of directshear tests with constant normal stress or normalstiffness

• Capable of performing unconfined or triaxial testswith optional hardware

• Other load capacities and specimen sizedimensions are available, including large-scaletest systems for shear loads of up to 1,000 kN(100 ton) and specimen sizes up to 300 mmdiameter or side

DESCRIPTION

The GCTS Direct Shear System for Testing Rocks is a versatiledevice for testing a wide range of rock specimen configurations.Cylindrical cores, cubes, prisms, and rock fragments can be usedto determine the shear strength.

This system features electro-hydraulic closed-loop digital servocontrol of the shear and normal loads for test automation. Theincluded software program accepts inputs from the normal load

sensor and up to three normal deformation sensors (the softwarecalculates automatically the average normal deformation). Loadsor deformations for both the shear and normal actuators can beset to automatically perform advanced tests such as the Constantor Calculated Normal Stiffness Direct Shear Test.

This system can be provided with an optional triaxial cell,unconfined loading platens, indirect tension (Brazilian) platens,etc. to perform most of the laboratory mechanical tests requiredfor rocks.

SPECIFICATIONS See RDS-300 brochure.


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Uniaxial Testing System (UCT-1000)

• Compression and Tension loading system withelectro-hydraulic closed-loop digital servo control

• Static and Dynamic loading capabilities

• Adjustable cross-head design• Accepts GCTS High Pressure triaxial cell & other

testing components

• Ideal for performing unconfined compression,bending, indirect tension, fracture, creep, andother material tests

• Available systems with load capacities up to 4,500kN (1,000 kips) and stiffness up to 4,300 kN/mm(25x10

6 lbs/inch)

• Economical “turn-key” systems built to customerspecifications

DESCRIPTION

GCTS Uniaxial Testing Systems include our state-of-the-artSCON-1500 Digital Signal Conditioning & Servo Controller CATSsoftware. The system is capable of performing static anddynamic closed-loop load, deformation, strain or any other

measured or calculated parameter. Automatic “bump-less” orsmooth control transfer can be programmed at any test stage.The true 32-bit Windows XP Software allows sending directly youtest data to any computer connected to your local network.Using a Windows network system in your lab facilitates thetransferring of your test data directly into other Windowsprograms such as Word or Excel for report generation as well asto easily backup your important test results

SPECIFICATIONS

Compression load capacity …… 1,000 kNTension load capacity ………….... 800 kNStiffness …………………………… 700 kN/mmStroke ……………………………… 100 mmDistance between columns ……… 400 mmDistance between platens ……….. 600 mm

SHIPPING

Weight …………………… 1,700 kgDimensions (meters) …… 1.2W x 2D x 2H


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Rapid Triaxial Rock Testing System (RTR-1000)

• GCTS High Pressure Triaxial cell with hydrauliclift/lock for rapid, easy and safe operation

• Ideal for production test facilities

• Load capacities up to 1,500 kN (340 kips) &stiffness up to 10,000 kN/mm (50x106 lbs/inch)

• Larger load capacities available upon request

• Closed-loop digital servo control• Integrated confining & pore pressure panel with

dual intensifiers

• Pressures up to 140 MPa (20 ksi)

• 24 electrical feed thru lines (6 connectors) forinternal instrumentation such as load cells,LVDT’s, thermocouples, ultrasonic velocity, &acoustic emission sensors


DESCRIPTION

The GCTS Rapid Triaxial Systems are typically operated with ournew digital servo control and data acquisition package thatincludes Windows (98/2000/NT/XP) testing software and digitalsignal conditioning system.

An Automatic hydraulic lift and a sliding base for the triaxial cellare included with this system for fast and easy specimen setup.Fast assembly/disassembly of the cell is achieved with the pushof a single button. No bolts or other fasteners are used toassemble the triaxial cell, resulting in more time dedicated totesting.

SPECIFICATIONS

See RTR-1000 Brochure


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Triaxial Rock Testing System (RTX-1000)

• 1,000 kN (225 kip) axial load and 70 MPa (10,000psi) confining pressure capacity

• Direct closed-loop digital servo control of axialstress, axial strain, radial strain, and several othercalculated triaxial variables

• GCTS High Pressure Triaxial cell with internalinstrumentation to measure local axial & radialstrains

• Ideal for performing unconfined compression,triaxial, bending, indirect tension, fracture, creep,post failure behavior, & other compression tests

• Available options: High stiffness loading frame,platens with ultrasonic transducers, hightemperature control subsystem, and upgrades foraxial loads up 4,500 kN and confining pressuresup to 210 MPa.

• Economical "turn-key" systems built to customerspecifications.

•

DESCRIPTION

GCTS Triaxial Rock Testing Systems are manufacturedaccording to your design specifications (load capacity and systemstiffness, sample size, confining and pore pressures, internalinstrumentation, temperature testing, and ultrasonic velocitymeasurements). The top cross head height can be adjusted toaccommodate a wide variety of test specimens and triaxial cells.The RTX-1000 meets the specifications of the International

Society for Rock Mechanics (ISRM) for triaxial testing of rocksamples.

The system is capable of performing static and dynamic closed-loop strain or stress controlled as well as post failure behavior

tests. Included with this system is our true 32-bit Windows XPSoftware. It allows sending directly your test data to anycomputer connected to your local network. Our new softwareincludes a database system to keep track of all the datagenerated at your lab with any of our testing systems. Using aWindows network system in your lab facilitates the transferring ofyour test data directly into other Windows programs such as Wordor Excel for report generation as well as to easily backup yourimportant test results

The Graphical User Interface with context-sensitive on-line helpand intuitive color windows helps minimize learning time andenables laboratory personnel to conduct more complex, but

realistic, testing programs at substantially lower operating costand also with minimal operator error. The system manages allthe instrumentation and continuously monitors sensor outputs toaccurately account for uplift pressures acting on the loadingpiston, area changes, deformation and volume change sensorssetup and re-positioning, etc.

SPECIFICATIONS

Contact GCTS


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Triaxial Rock Testing System (RTX-1500)

• Direct closed-loop digital servo control of axialstress, average principle stress, axial strain,radial strain, and several other calculatedtriaxial variables

• 1,500 kN Load capacities and 1,750 kN/mmstiffness.

• GCTS High Pressure Triaxial cell with internalinstrumentation to measure local axial & radialstrains

• 140 MPa servo-controlled pressure intensifiersystem for cell and pore pressure.

• Available options: axial & circumferentialdeformation measurement system, platens withultrasonic transducers, and high temperaturecontrol subsystem.

• Ideal for performing unconfined compression,triaxial, bending, indirect tension, fracture,creep, post failure behavior, & othercompression tests

• Economical "turn-key" systems built tocustomer specifications.

• Optional automatic hydraulic lift for triaxial celland roller assembly for fast & easy specimensetup

DESCRIPTION

GCTS Triaxial Rock Testing Systems are manufactured accordingto your design specifications (load capacity and system stiffness,sample size, confining and pore pressures, internal instrumentation,

temperature testing, and ultrasonic velocity measurements). Thetop cross head height can be adjusted to accommodate a widevariety of test specimens and triaxial cells. The RTR-1500 meetsthe specifications of the International Society for Rock Mechanics(ISRM) for triaxial testing of rock samples.

The system is capable of performing static and dynamic closed-loopstrain or stress controlled as well as post failure behavior tests.Included with this system is our true 32-bit Windows XP Software. Itallows sending directly your test data to any computer connected toyour local network. Our new software includes a database systemto keep track of all the data generated at your lab with any of ourtesting systems. Using a Windows network system in your lab

facilitates the transferring of your test data directly into otherWindows programs such as Word or Excel for report generation aswell as to easily backup your important test results

SPECIFICATIONS

Contact GCTS.

SHIPPING

Weight 3,200 kgVolume 7.2 m


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Hydraulic Fracture Test System (HFRTC-100)

Axial Load

Fluid

Injection

Rock

Specimen

• Capable of performing static and dynamic triaxialtests as well as hydraulic fracture, Well borestability, and rock permeability

• 1,100 kN (250 kip) “stiff” (1750 kN/mm) four-column frame with servo-controlled hydraulicactuator (100mm stroke)

• RTX-100 stainless steel triaxial cell for NX

specimens (10,000 psi confining pressurecapacity)

• Air/oil pressure booster with pressure transducerfor static control of cell or backpressure up to 70MPa (10,000 psi)

• Servo-controlled pressure intensifier capable ofstatic and dynamic control of fluid injectionpressures up to 70 MPa (10,000 psi)

• May also be used for confining or backpressure• Heating system for testing at temperatures up to

230 °C (550 °F)

• Optional internal acoustic emission sensor

DESCRIPTION

The GCTS Hydraulic Fracture Test System is capable ofperforming not only basic static and dynamic triaxial tests, butalso hydraulic fracture, Well bore stability, and permeability tests.This versatile system is very easy to operate because of theGraphical User Interface (GUI) software.

The features listed below are for our base system. We also havesystems for larger loads and higher pressures. Frame stiffnessand specimen size options are also available. Other options

include replacement of the manual air/oil booster with a servo-controlled intensifier, and upgrades to our dual-piston intensifierfor tests, which require relatively large fluid flows without pressurespikes.

SPECIFICATIONS

Axial load . . . . . . . . . . . . . . . . . . . . . . . 1,000 kNConfining & pore fluid pressure . . . . . . 70 MPaIntensifier volume . . . . . . . . . . . . . . . . . 280 cc

SHIPPING

Weight . . . . . . . . . . . . . . . . . . 1,600 kgDimensions (meters) . . . . . . . Crate 1―1W x 2.0D x 2H

. . . . . . . . Crate 2―1W x 1.5D x 2H


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Rock Testing Components


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Rock Deformation Device (DEF-5000)

• Available sizes for specimen diameter from 25 mmto 150 mm (optional sizes available)

• Measures axial and lateral strain directly on thetest specimen

• Two axial sensors & one circumferential sensor

• Uses LVDT's for ease of operation• Models for up to 200 MPa pressure and up to

150 ºC temperature testing

• Very easy to set up and use

DESCRIPTION

The GCTS Rock Deformation Device measures axial and lateral

strain directly on the specimen providing accurate results. Thedevice consists of an upper and lower support ring machined witha low weight, high strength design. The rings include spring-loaded set screws to allow for specimen expansion duringloading. A set of perforated rods with pre-set lengths is includedto position the axial rings at pre-defined gage lengths withoutdifficulty.

The circumferential device is built with small, high precision rollersand stiff linkages for high accuracy strain measurements. Thumbscrews are also provided to easily null the LVDT sensors.

The GCTS Rock Deformation Device is available in standardsizes and also in custom sizes and is available with LVDT ranges

from 2 to 10 mm.

This device can be used within our high-pressure triaxial cell andalso used for elevated or cold temperature testing. Elasticconstants such as Young's modulus and Poisson's ratio can bedetermined as well as inelastic strains that occur after samplefailure (post failure analysis). Direct servo control of axial orradial strains can be performed with this device.

SPECIFICATIONS

Model . . . . . . . . . . . . Specimen Size . . . . LVDT Range. . . . . . . . . . . . . . . . . (Diameter in mm) . . . . . (mm)DEF-5100 . . . . . . . . . . . . 25 to 55 . . . . . . . . . . . 5DEF-5200 . . . . . . . . . . . . 50 to 75 . . . . . . . . . . . 5DEF-5300 . . . . . . . . . . . . 70 to 100 . . . . . . . . . 10

For High Pressure append the letter “A” and for high temperatureadd the letter “T” to the model number (i.e. DEF-5100AT).

SHIPPING

Weight: . . . . . . . . . . . . . . . . . 4 kgDimensions (meters): . . . . . . 0.3W x 0.3D x 0.3H


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Indirect Tension (Brazilian) Apparatus for Rocks (RIT-B)

• Available sizes for specimen diameter from 50 mmto 150 mm (Note that ISRM recommends that thediameter shall not be less than NX core – 54-mmdiameter).

• Made of hardened stainless steel.

• Can be used with GCTS unconfined, triaxial andpoint load tester frames.

• Very easy to set up and use.

DESCRIPTION

The GCTS IDT-B Rock Apparatus is used for determining indirecttensile strength by the Brazil test according to the InternationalSociety for Rock Mechanics standard.

The device consists of an upper and lower support ring machinedwith a low weight, high strength design. The Indirect Tension

Apparatus is available in standard sizes and also in custom sizes.

SPECIFICATIONS

Standard apparatus includes:

• Loading jaws for testing 54-mm (NX) diameter and27-mm thick samples by the Brazil test). Top andbottom jaws 30 mm wide with 39-mm radius andguide pins to allow rotation of one jaw relative tothe other. Top jaw includes spherical seating withHRC 45 hardness.

• Half ball bearing. Spherical platen formed by a 25-mm half ball bearing.

• Meets ISRM suggested method for DeterminingTensile Strength by the Brazil measures axial andlateral strain directly on the specimen providingaccurate results.

NOTE: Requires suitable compression frame


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Compression Frames (FRM4-1000)

• Compression frames for testing rocks, concrete,and other construction materials

• Pre-stressed four-column and adjustable cross-

head design• Load capacities up to 4,500 kN (1,000 kips) and

stiffness up to 4,300 kN/mm (25x106 lbs/inch)

• Closed-loop digital servo control

• Accepts GCTS High Pressure triaxial cell & othertesting components

• Available integrated hydraulic lift for triaxial cell foreasy setup

• Ideal for performing unconfined compression,triaxial, bending, indirect tension, fracture, creep,and other compression tests


DESCRIPTION

GCTS Compression Frames are typically operated with ourDigital Servo Control software and hardware package thatincludes the electro-hydraulic power unit, servo valve, sensors,computer interface, and testing software.

Available with these frames is an automatic hydraulic lift fortriaxial cell and roller assembly for fast and easy specimen setup.This option is recommended with GCTS high-pressure triaxialcells.

These frames can also use an economical air/oil pressure boosteinstead of the electro-hydraulic power unit for long termcompression tests like the creep test.

SPECIFICATIONS

For Typical Systems (FRM4-1000-5)

Axial load capacity (static) . . . . . 1,000 kN Axial load capacity (dynamic) . . . 800 kNStiffness . . . . . . . . . . . . . . . . . . . 700 kN/mm

Stroke . . . . . . . . . . . . . . . . . . . . 50 mmServo valve capacity . . . . . . . . . 19 l/minDistance between columns . . . . 400 mmDistance between platens . . . . . 600 mm

SHIPPING

Weight: . . . . . . . . . . . . . . . . . 1,600 kgDimensions (meters) . . . . . . 1W x 2D x 2H


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Pressure Intensifier System (HPVC-070)

PRESSURETRANSDUCER

SERVO VALVE

LVDT

TOTRIAXIAL

CELL

HIGH PRESSURE SIDE (70 MPa)

LOW PRESSURE SIDE (14 MPa)

• Closed-loop digital servo control of pressure or flow(volume) with “bump-less” transfer

• 70 MPa (10,000 psi) pressure range• 500 cc stroke capacity

• Stainless-steel construction

• Can be used as a volume change measurementdevice for triaxial and permeability testing

• Larger pressure and volume stroke capacitiesalso available

DESCRIPTION

GCTS Pressure Intensifiers are ideal for the servo control of the cellpressure in triaxial tests, head pressure in permeability tests, or fluidpressure in hydro-fracture tests. This intensifier can also be used tomeasure flow in permeability tests and volume change in triaxialtests while applying prescribed pressures. Together with GCTSdigital servo controller and the triaxial software, it allows theperformance of more advanced tests such as stress/strain path.

The HPVC-070 is mounted in a metal cabinet on casters to housethe confining pressure/volume servo controlled intensifier, fluidreservoir, sight level gage, and venturi vacuum pump. All valves aremounted on the front panel for easy intensifier operation and fillingor draining the cell.

GCTS makes a dual piston intensifier model for tests wherecontinuous flow is required and pressure spikes cannot be tolerated.

These models include two intensifiers and two servo valves togetherwith the necessary check valves, plumbing, and special controlsoftware for automatic operation. Also available, as an alternative,is an economical air/oil pressure booster. These units operate with700 kPa (100 psi) air pressure input for a 70 MPa (10,000 psi)output. GCTS pressure boosters offer a low cost, trouble freeoperation and are ideal for use in creep and sustained loading inlong term tests.

SPECIFICATIONS

Pressure control precision: .±0.1 MPa (15 psi)Pressure transducer resolution: 0.02 MPa

Volume transducer resolution: 0.01 cc.Pressure test gauge accuracy: ±0.25%.Fluid media compatibility: oil and water (consult GCTS for other)Fluid reservoir capacity: 19 liter (5 gallon)Required pressure input: 21 MPa (3,000 psi)

SHIPPING

Weight: . . . . . . . . . . . . . . . . . 285 kg.Dimensions (meters): . . . . . . 0.85W x 0.85D x 2.0H


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Pressure Intensifier System (HPVC-140)

HPVC-140C (left) & HPVC-140P (right)

• 140 MPa (20,000 psi) pressure range• 280 or 560 cc stroke capacity

• Closed-loop digital servo control of pressure orflow with “bumpless” transfer

• Can be used as a volume change measurementdevice for triaxial and permeability testing

• 4,000 cc fluid reservoir with pressure/vacuum/vent port for easy filling and draining triaxial celland intensifier

• Metal cabinet mounted on casters to house theconfining pressure/volume servo controlledintensifier, fluid reservoir, and panel

• Dual piston model available for continuous, non-pulsating flow

• Larger pressure and volume stroke capacities alsoavailable

DESCRIPTION

GCTS Pressure Intensifiers are ideal for the control of the cell

pressure in triaxial tests, head pressure in permeability tests, orfluid pressure in hydro-fracture tests. This intensifier can also beused to measure flow in permeability tests and volume change intriaxial tests while applying prescribed pressures. Together withGCTS digital servo controller and the triaxial software, it allowsthe performance of more advanced tests such as stress/strainpath. These units include a 4,000 cc reservoir, reservoir level andfluid flow indicators, analogue pressure gage, and necessaryvalves to simplify all operations. All these components arehoused within a metal cabinet with casters.

GCTS makes a dual piston intensifier model for tests wherecontinuous flow is required and pressure spikes cannot be

tolerated. These models include two intensifiers and two servovalves together with the necessary check valves, plumbing, andspecial control software for automatic operation.

Also available, as an alternative, is an economical air/oil pressurebooster. These units operate with 700 kPa (100 psi) air pressureinput for a 140 MPa (20,000 psi) output. GCTS pressureboosters offer a low cost, trouble free operation and are ideal foruse in creep and sustained loading in long term tests.

SPECIFICATIONS

HPVC-140C . . . . . . 560 cc (Confining Pressure)

HPVC-140P . . . . . . 280 cc (Pore Pressure)

Contact GCTS

SHIPPING


PRESSURETRANSDUCER

SERVO VALVE

LVDT

TOTRIAXIAL

CELL

HIGH PRESSURE SIDE (70 MPa)

LOW PRESSURE SIDE (14 MPa)


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Air/Oil Pressure Booster (HPC-070)

• 70 MPa (10,000 psi) pressure range

• Easy to use

• Air operated• Compatible with almost any type of fluid

service

• Ideal for confining or back (pore) pressureapplication to triaxial cell

• Low acquisition cost and low operatingcost

• Systems available for pressures up to 210MPa

DESCRIPTION

GCTS Air/Oil Pressure Boosters are very easy tooperate and provide an economical alternative to servo-controlled pressure intensifiers. Air source from a 3 to 5H.P. air compressor is sufficient to drive these pumps.

The GCTS Air/Oil Pressure Boosters are enclosed in atable-top metal cabinet and include pressure panel, 19-litter (5 gallon) fluid reservoir with pressure/vacuum/vent port and venturi vacuum pump for easy filling anddraining pressure cell, sight level gage, pressure gauge,input and output pressure regulators, high pressurevalves, and a 3-meter flexible hose.

SPECIFICATIONS

Pressure control precision: ±1 MPa (150 psi)Pressure test gauge accuracy: ±0.25%Maximum Flow Rate: 0.3 liter/minuteFluid compatibility: water and oil (consultGCTS for other)Fluid reservoir capacity: 19 liter (5 gallon)Required input: 700 kPa (100 psi) airpressure

SHIPPING


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High Pressure Triaxial Cell (HTRX-020)

• 20 MPa (3,000 psi) pressure & 400 kN (90 kips)axial load capacity

• Stainless steel construction• Accepts samples with a diameter from 25 mm to

75 mm and with a length of 2 times the diameter

• Upper platen provided with a spherical seat tocompensate for non-parallel specimen ends

• Top & bottom pore pressure plumbing provided foreffective stress and permeability measurements

• Electrical feed-through connectors for GCTS axialand circumferential deformation measurementdevices, ultrasonic sensors, and other specialtransducers

AVAILABLE OPTIONS:

• Axial and circumferential deformationmeasurement system

• Platens with ultrasonic transducers for P- & S-wave velocity measurements

• High & low temperature control subsystem fortesting at -30 to 150 C

DESCRIPTION

The GCTS High Pressure Triaxial Cell was designed for testing75 mm (3 inch) rock specimens with lengths of up to 160 mm at

confining pressures of up to 20 MPa and axial loads of up to400 kN. Other specimen diameters can also be tested with theuse of optional platens.

The 150 mm inside diameter of the cell wall and the electricalfeed-through connectors installed at the cell base allow the use ofin-vessel instrumentation for precise measurements ofdeformation modulus and Poisson’s ratio. The standardspecimen platens have O-ring grooves for sealing the specimen

jacket and an upper spherical seat to minimize stressconcentrations due to non-parallel specimen ends. Pore fluidlines and ports for both, upper and lower platens, are alsostandard for effective stress and permeability measurements.

Cell and pore fluid connectors are provided at the cell base foreasy interface with either the GCTS computer servo- controlledpressure intensifier or the GCTS air/oil pressure booster system.

A loading piston with spherical seating is also provided with thistriaxial cell.


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• 70 MPa (10,000 psi) pressure & 1,000 kN (225

kips) axial load capacity• Higher pressures up to 210 MPa (30,000 psi)

available

• Hardened stainless steel construction• Accepts samples with a diameter from 25 mm to

63.5 mm and with a length of 2 times the diameter

• Upper platen provided with a spherical seat tocompensate for non-parallel specimen ends

• Top & bottom pore pressure plumbing provided foreffective stress and permeability measurements

• Electrical feed-through connectors for GCTS axialand circumferential deformation measurement

devices, ultrasonic sensors, and other specialtransducers

AVAILABLE OPTIONS:


• Platens with ultrasonic transducers for P- & S-wave velocity measurements

• High temperature control subsystem for testing atup to 150 C

DESCRIPTION

The GCTS High Pressure Triaxial Cell was designed for testing75 mm (3 inch) rock specimens with lengths of up to 127 mm atconfining pressures of up to 70 MPa and axial loads of up to1,000 kN. Other specimen diameters can also be tested with theuse of optional platens.

The 127 mm inside diameter of the cell wall and the electricalfeed-through connectors installed at the cell base allow the use ofin-vessel instrumentation for precise measurements ofdeformation modulus and Poisson’s ratio. The standardspecimen platens have O-ring grooves for sealing the specimen

jacket and an upper spherical seat to minimize stress

concentrations due to non-parallel specimen ends. Pore fluidlines and ports for both, upper and lower platens, are alsostandard for effective stress and permeability measurements.

Cell and pore fluid connectors are provided at the cell base foreasy interface with either the GCTS computer servo- controlledpressure intensifier or the GCTS air/oil pressure booster system.

A loading piston with spherical seating is also provided with thistriaxial cell.


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High Pressure Triaxial Cell (HTRX-070L)

• 70 MPa (10,000 psi) pressure & 1,000 kN(225 kips) axial load capacity

• Higher pressures available up to 210 MPa

(30,000 psi)• Hardened Stainless steel construction

• Accepts samples with a diameter from 25 mmto 100 mm and with a length of 2 times thediameter

• Upper platen provided with a spherical seat tocompensate for specimens with non-parallelends

• Top & bottom pore pressure plumbing providedfor effective stress and permeabilitymeasurements

• Electrical feedthrough connectors for GCTS

axial and circumferential deformationmeasurement devices, ultrasonic sensors, &other special transducers

• Available options:


• Platens with ultrasonic transducers forP- & S-wave velocity measurements

• High temperature control subsystem for testingat up to 150 C

DESCRIPTION

The GCTS High Pressure Triaxial Cell was designed fortesting rock specimens with diameters up to 100 mm (4 inch)and 200 mm (8 inch) lengths at confining pressures of up to70 MPa and axial loads of up to 1,000 kN. Other specimendiameters can also be tested with the use of optional platens.

The 150 mm inside diameter of the cell wall and the electricalfeed-through connectors installed at the cell base allow theuse of in-vessel instrumentation for precise measurements ofdeformation modulus and Poisson’s ratio. The standardspecimen platens have O-ring grooves for sealing thespecimen jacket and an upper spherical seat to minimize

stress concentrations due to non-parallel specimen ends.Pore fluid lines and ports for both, upper and lower platens,are also standard for effective stress and permeabilitymeasurements.

Cell and pore fluid connectors are provided at the cell base foreasy interface with either the GCTS computer servo-controlled pressure intensifier or the GCTS air/oil pressurebooster system. A loading piston with spherical seating is alsoprovided with this triaxial cell.

The standard cell includes 5 electrical feed-through connectors with4 lines each (20 electrical lines total) to connect a variety of internasensors such as deformation gages, P & S wave velocitytransducers, acoustic emission sensors, etc.

The optional high temperature control subsystem includes aninternal thermocouple to measure the specimen temperature as welas a wall thermocouple to provide precise cascade temperaturecontrol and avoid temperature overshoots. In addition a highstrength insulation plate is provided in order to eliminatetemperature gradients inside the specimen by eliminating fast heatlosses through the cell base and to the loading frame.

GCTS also manufactures other rock triaxial cells for higherpressures and/or loads. Contact GCTS for information on otherhigh pressure triaxial cells.

SPECIFICATIONS

Cell Height: . . . . . . . . . . . . . . . . . . . . . . . . . . 560 mmCell Width: . . . . . . . . . . . . . . . . . . . . . . . . . . 350 mm


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HTRX-140 with temperature control option (heaters inside cell wall) & ultrasonic platens

• 140 MPa (20,000 psi) pressure and 2.5 MN(560 kips) axial load capacity. Higher pressures

available.

• Accepts samples with a diameter from 25 mm to63.5 mm and with a length of 2 times the diameter.Platens for NX (54 mm) diameter specimens comestandard with this cell.

• Upper platen provided with a spherical seat tocompensate for specimens with non-parallel ends.

• Top and bottom pore pressure plumbing providedfor effective stress and permeabilitymeasurements.

• Electrical feed-through connectors for GCTS axialand circumferential deformation measurement

devices or other special transducers.• Available options: Axial and circumferential

deformation measurement system, platens withultrasonic transducers for P and S wave velocitymeasurements, and high temperature controlsubsystem for testing at up to 200 C

DESCRIPTION

The GCTS High Pressure Triaxial Cell was designed for testing(NX size 54mm diameter) rock specimens with lengths of up to

120 mm at confining pressures of up to 140 MPa and axial loadsof up to 2,500 kN. Other specimen diameters can also be tested

with the use of optional platens.

The 150 mm inside diameter of the cell wall and the electricalfeed-through connectors installed at the cell base allow the use ofin-vessel instrumentation for precise measurements ofdeformation modulus and Poisson’s ratio. The standard NXspecimen platens have O-ring grooves for sealing the specimen

jacket and an upper spherical seat to minimize stressconcentrations due to non-parallel specimen ends. Pore fluidlines and ports for both, upper and lower platens, are alsostandard for effective stress and permeability measurements.

Cell and pore fluid connectors are provided at the cell base for

easy interface with either the GCTS computer servo- controlledpressure intensifier or the GCTS air/oil pressure booster system.

A loading piston with a spherical seating is also provided with thistriaxial cell.

SPECIFICATIONS

Inside Diameter: . . . . . . . . . . .150-mm (6 inch)Overall Outside Diameter: . . . 420-mm (16.5 inch)Overall Height: . . . . . . . . . . . . 520 mm (20.5 inch)


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• 200 MPa (29,000 psi) pressure and 2.5 MN(560 kips) axial load capacity. Higher pressuresavailable.

• Accepts samples with a diameter from 25 mm to63.5 mm and with a length of 2 times the diameter.Platens for NX (54 mm) diameter specimens comestandard with this cell.

• Upper platen provided with a spherical seat to

compensate for specimens with non-parallel ends.• Top and bottom pore pressure plumbing provided

for effective stress and permeabilitymeasurements.

• Electrical feed-through connectors for GCTS axialand circumferential deformation measurementdevices or other special transducers.

• Available options: Axial and circumferentialdeformation measurement system, platens withultrasonic transducers for P and S wave velocitymeasurements, and high temperature controlsubsystem for testing at up to 200 C

DESCRIPTION

The 150 mm inside diameter of the cell wall and the electrical feed-through connectors installed at the cell base allow the use of in-vesseinstrumentation for precise measurements of deformation modulus andPoisson’s ratio. The standard NX specimen platens have O-ring groovesfor sealing the specimen jacket and an upper spherical seat to minimizestress concentrations due to non-parallel specimen ends. Pore fluid linesand ports for both, upper and lower platens, are also standard fo

effective stress and permeability measurements.

Cell and pore fluid connectors are provided at the cell base for easyinterface with either the GCTS computer servo- controlled pressureintensifier or the GCTS air/oil pressure booster system.

A loading piston with a spherical seating is also provided with this triaxia

cell.

The high temperature option includes a thermocouple port, heatersembedded into cell wall, insulation base plate, and insulation jacket. Theinsulation base plate is very important to eliminate temperature gradientswithin the specimen.

SPECIFICATIONS

Inside Diameter: . . . . . . . . . . .150-mm (6 inch)Overall Outside Diameter: . . . 420-mm (16.5 inch)

Overall Height: . . . . . . . . . . . . 520 mm (20.5 inch)

27


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Pressure Controlled Coring Machine (RCD-250)

• 1.5 HP electric motor with 12 adjustable spindlespeeds from 150 through 4,200 rpm

• Drilling rate controlled by both pressure and speedand automatic down-feed mechanism with 250-mm travel

• Rigid Multi-Column drill support frame to eliminateridges on specimen

• Includes quick-latch specimen holder for coring100 mm (4 in.) specimens from 150 mm (6 in.)compacted samples

• Wide variety of Coring Barrels to choose from

STANDARD DIAMOND BITS

Model No. Designation mm inch

DCB-EX . . . . . . . . .EX . . . . . 21.5 . . . . 0.845DCB-AX . . . . . . . . .AX . . . . . 30.1 . . . . 1.185DCB-BX . . . . . . . . .BX . . . . . 42.0 . . . . 1.654DCB-NX . . . . . . . . .NX . . . . . 54.7 . . . . 2.154DCB-HQ . . . . . . . . HQ . . . . . 63.5 . . . . 2.500DCB-HX . . . . . . . . HX . . . . . .76.2 . . . . 3.000DCB-100 . . . . . . . . . . . . . . . . 100.0 . . . 4.000DCB-150 . . . . . . . . . . . . . . . . 150.0 . . . 6.000

Rock Sample

DESCRIPTION

The GCTS Laboratory Coring Machine is capable of achieving alarge range of spindle speeds to provide optimum performancewhen preparing test specimens, regardless of the properties ofthe material being sampled. All accessories are included (waterswivel, drip pan, sample holder. Other standard or custombarrels are also available.

The main feature that sets this coring machine above any other isthe force/stroke control to optimize feeding rates for superiorperformance when coring material, which is not homogeneous.

SPECIFICATIONS

1.5 HP electric motor with 12 adjustable spindle speeds from 150through 4,200 rpm. Drilling rate controlled by both pressure andspeed eliminating the tendency for non-homogeneous rocks tomove. 250-mm travel. Specimens up to 250 mm long. RigidMulti-Column drill support frame to eliminate ridges on specimen.Comes with your choice of cylindrical specimen holder for coringspecimens from 150 mm (6 inch) compacted samples or visetable to hold prismatic rock samples. Hydraulic pump, waterswivel, drip pan, vise table, and motor head assembly alsoincluded. Order diamond core bits separately.

OPERATION

220 volts50-60 Hertz Single phase

SHIPPING



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Specimen Grinder (RSG-200)

• Fast grinder with a single-pass full specimencoverage to make core loading faces paralleland flat according to ASTM and ISRMspecifications.

• Includes Diamond grinding cup-wheel.

• Custom made specimen holder.

DESCRIPTION

The GCTS Specimen Grinder provides the final step topreparing test specimens with parallel and flat ends accordingto ASTM and ISRM specifications. The grinder is driven by aheavy-duty 2.0 HP electric motor for durability. A diamondgrinding cup-wheel is provided along with a custom stainlesssteel sample holder. GCTS offers sample holders forspecimen diameters from 25 mm to 150 mm. The system hasa built in cooling circulator that cools the grinding cup-wheelwhen preparing a specimen.

SPECIFICATIONS

Fast grinder with a single-pass full specimen coverage to make coreloading faces parallel and flat according to ASTM and ISRMspecifications. 2 HP electric motor. Includes diamond grinding cupwheel, coolant system with 45 liters of biodegradable rock oil,magnetic chuck, and stainless steel specimen holder for 50 to 76mm diameter specimens.

OPERATION:

230 volts50-60 Hertz3 phase

SHIPPING

Weight: . . . . . . . . . . . . . . . . . 1,220 kg.Dimensions (meters) . . . . . . 1.0W x 1.5D x 2.0H


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Specimen Flatness Gage (RFG-100)

DESCRIPTION

200 mm x 300 mm x 50 mm thick granite base (grade A,

+/- 0.0001" accuracy) with dial gage support for measuring flatnessof specimens up to 200 mm in height. Includes electronic digital dialgage 0.01 mm (0.0005") resolution.


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Soil Testing Systems


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Servo Controlled Consolidation Apparatus (CRS-10)

• Constant Rate of Strain (CSR), Constant Gradient(CG), and conventional Consolidation Tests

• Electro-Pneumatic Servo Control• 10 kN load capacity• Automatic data logging and report generation

• Custom Specimen sizes available

DESCRIPTION

The GCTS Consolidation Apparatus is capable of performingControlled Gradient (CG), Constant Rate of Strain (CRS), andIncremental (conventional) consolidation tests. The device is tobe used inside the triaxial chamber and loading frame. Includesstainless steel specimen ring, porous stones, o-ring seals, and

necessary plumbing.

During the controlled gradient (CG) test, a pore pressuretransducer mounted on the base provides a feedback signal,which is used in the operating software to provide a presetloading rate on the test specimen.

The constant rate of strain test (CRS) can also be performedusing the GCTS Consolidation Apparatus. Using deformationsensor, which monitors axial strain on the specimen, the sampleis loaded at a preset rate of strain controlled by the systemsoftware.

The conventional or incremental consolidation test is performedthrough application of an axial load on the test specimen at presetloading steps or increments.

The GCTS CRS-10 Consolidation Apparatus includes a loadingframe, load cell, deformation sensor, pore pressure sensor, servovalve and the SCON1500 servo controller and data acquisitionsystem to automatically perform the above tests. Windowssoftware is also provided to set the tests as well as to monitor inreal time the test data and data reduction.

GCTS can also provide consolidation systems for largerspecimens and larger loads. Other options include benderelements to measure shear wave velocities and HAEV ceramicdisks to obtain soil-water- characteristic curves (SWCC). Pleasecontact GCTS to inquire about these or any other option.

SPECIFICATIONS

Maximum Load: 10 kNStandard Specimen size: 63 mm (2.5 inch)Maximum Specimen Size: 75 mm (3 inch)Excitation: 10 VDC

Operation: 110/220 VAC1,000 kPa dry, compressed air

SHIPPING

Weight : 350 kg.Volume: 1.5 m3 approximately


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Direct Shear Testing System for Soils (SDS-100)

• Closed-loop servo control of double acting(push/pull) 20 kN (2 ton) shear load actuator with±25 mm stroke & 20 kN

• (2 ton) normal load capacity with 50 mm stroke

• Normal load reaction support mounted on slidingbearings to minimize horizontal friction

• Accepts specimens with up to 100 mm (4")diameter or 70 mm (2.75") square specimens


• Real time graphical display of test progress

• Mounted on a cart with casters• Other load capacities & specimen size dimensions

are available, including large-scale test systemsfor shear loads of up to 1,000 kN (100 ton) &specimen sizes up to 300 mm diameter or side

DESCRIPTION

This system features electro-hydraulic closed-loop digital servocontrol of the shear and normal loads for test automation. Loadsor deformations for both the shear and normal actuators can beprescribed for automatically performing conventional direct sheartests as well as more advanced tests. This system can be easilyprogrammed to perform tests such as the constant normal

stiffness test where the normal load is a function of a prescribedstiffness for simulating actual compressibility of a ground shearplane (e.g. soil-pile interaction).

The GCTS Direct Shear Test System is especially well suited totest coarse granular materials because of its large sample sizeand high load capacity.

A major advantage over conventional motorized system is thatthis system eliminates vibrations that can disturb or densifygranular specimens.

The SDS-100 is mounted on a convenient cart with caster that notonly supports the apparatus but also houses the hydraulicsinside.

SPECIFICATIONS

Power: 120 or 220 VAC

(Contact GCTS for full specifications and available options)

SHIPPING

Weight : . . . . . . . . . 250 kg.Dimensions: . . . . . . 1.0 m x 1.2 m x 1.2 m


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Direct Shear Testing System for Soils and Asphalts (SDS-150)

• Closed-loop servo control of double acting(push/pull) 50 kN (5 ton) shear load actuator with

100 mm (±50 mm) stroke & 50 kN (5 ton) normalload capacity with 50 mm stroke

• Normal load reaction support mounted on slidingbearings to minimize horizontal friction

• Accepts 150 mm (6") square specimens


• Available interface platens to test soils, asphaltand geo-membranes.

• Other load capacities & specimen size dimensionsare available, including large-scale test systems

for shear loads of up to 1,000 kN (100 ton) &specimen sizes up to 300 mm diameter or side

DESCRIPTION

This system features electro-hydraulic closed-loop digital servocontrol of the shear and normal loads for test automation. Loadsor deformations for both the shear and normal actuators can beprescribed for automatically performing conventional direct sheartests as well as more advanced tests. This system can be easilyprogrammed to perform tests such as the constant normalstiffness test where the normal load is a function of a prescribedstiffness for simulating actual compressibility of a ground shearplane (e.g. soil-pile interaction).

The GCTS Direct Shear Test System is especially well suited totest coarse granular materials including interface because of itslarge sample size and high load capacity.

A major advantage over conventional motorized system is thatthis system eliminates vibrations that can disturb or densifygranular specimens.

SPECIFICATIONS

Contact GCTS


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Servo-Controlled Simple Shear Testing System (SSH-100)

• Dynamic and static simple shear apparatus

capable of applying cyclic loads up to 20 Hz• Digital servo control of shear and normal loads or

displacements

• Servo control of the confining pressure• Acrylic cell capable of 1,000 kPa (150 psi) lateral

confining pressure (2,000 kPa option available)

• Includes lines for top and bottom specimendrainage

• 25 kN normal and shear load capacity• Lateral support of top cap to minimize rotation

compliance & sliding base mounted on pre-loadedlinear bearings

• Optional internal load cell and deformationsensors with overload protection

• Software for automatic performance of simpleshear tests with real time graphical display of testprogress

• Optional ultrasonic platens and unsaturatedtesting

• Automatic tilt mechanism for fast and easyspecimen installation

DESCRIPTION

The design of the GCTS Simple Shear System is based on ourexternal cell wall triaxial system. The apparatus has a fixed topand a sliding bottom base mounted on special linear bearings.The system also has a stiff internal support to minimize lateralcompliance of the top cap.

One of the main advantages of the GCTS Simple Shear Systemis that our apparatus does not require a reinforced membrane aslateral support is provided via the confining pressure. This meansthat consolidation can be done at K values other than Ko.

The confining pressure can be servo controlled and together with

the hydraulic servo control of the normal and shear loads, theGCTS system is capable of performing advanced tests such aszero volume change.

The system is capable of testing 100 mm (4 in.) and 71 mm(2.8 in.) diameter specimens. Because the internal lateral supportcan be adjusted up or down, various specimen heights can betested. This means that the system can be used to test eithersimple shear or triaxial test specimens with heights up to 2.5times the diameter.


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Dynamic Hollow Cylinder Testing System (HCA-100)

• Closed-loop digital servo control• ±225 Nm torsional loads & up to ±100 kN axial

loads at up to 50 Hz

• Confining, back/pore, and internal pressure servocontrol up to 1,000 kPa

• Angular displacement sensor with a deflectionrange of ±25° to measure large shear strains (±40°optional)

• Non-contacting deformation sensors with a ±2.5mm range to detect small shear strains

• Standard systems to test 100 mm outsidediameter & 50 mm inside diameter(25 mm wall thickness)

• Systems also available to test 150 mm ODand 75 mm ID

• Optional unsaturated soils testing system packagealso available

• Internal high-speed torque motor for resonantcolumn testing, ultrasonic platens, andtemperature controller options also available

• Complete "turn-key" system

DESCRIPTION

Direct digital servo control of axial load, torque, confining

pressure, internal pressure, and back pressure are achievableusing the GCTS Dynamic Hollow Cylinder Testing System forperforming "true triaxial" tests. This system is capable ofsimulating most field stress/strain path tests (static or dynamic)including plane strain, simple shear, and small shear strains.Other possible tests include, measurement of dynamic shearstrength & deformation, liquefaction potential, shear modulus anddamping ratio. The system is versatile in allowing the user todesign custom procedures with operating frequencies of up to 50Hz.

The system software advices the user on how to perform testingtasks and also reminds the user of important steps that may need

to be executed (such as opening or closing a valve at requiredtest stages). The program helps the user to select proper testingparameters and provides the necessary information toautomatically execute the test. The Graphical User Interface withcontext sensitive on-line help and intuitive color windows helpminimize the learning time and enables laboratory personnel toconduct more sophisticated testing programs at an economicalprice. The system manages all the instrumentation andcontinuously monitors sensor outputs to accurately account foruplift pressures acting on the loading piston, area changes,deformation and volume change sensor setup, re-positioning, etc.

SPECIFICATIONS

Contact GCTS


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Poly-Axial Test System (SPAX-2000)

• Tests cubical specimens 75 x 75 mmby 150 mm height

• Capable of applying 5 MPa & 2 MPa for themaximum major and minor stresses, respectively

• Independent stress or strain closed-loop digitalservo control of each one of the three axes

• Front and back-hinged doors swing open for easyspecimen access

• Internal load cells are rigidly attached to upper andboth side loading platens

• Especially well suited for Ko-consolidation testing• “Turn-key” systems

• Systems also manufactured to customerspecifications

• Unsaturated soils triaxial testing

DESCRIPTION

The Poly-Axial System includes four hydraulic load ramsequipped with LVDT’s so that each platen can be independentlycomputer-controlled. The feedback control can be either stress orstrain. With this configuration the specimen can be maintained

centered minimizing end platen friction. This is accomplished byalways making one of the LVDT’s on each plane with hydraulicloaders the “master” and the opposing LVDT the “slave”. The

master LVDT can be controlled to deform at a particular rate,including zero, and the slave is automatically programmed todeform an equal amount.

Each one of the horizontal loading rams has an internal load cellbecause there can be significant end platen friction at the top andbottom porous stones, especially if the specimen exhibitssignificant non-homogeneity. The load cell at the bottom verticalloader is omitted because the side platens are smooth and can belubricated making end platen friction much less an issue for thisdirection. Pore pressures are measured at the top and bottomspecimen ends.

Stresses/strains in the axis 3 directions are applied through thechamber fluid pressure. A volume change device is used tomeasure and control the strains in this direction. Optionalproximity sensors can also be used to measure deformations inthis direction.

SPECIFICATIONS

Contact GCTS


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Resilient Modulus and Asphalt Testing System (MRT-300)

• Advanced testing for soils and Hot Mix Asphalt(HMA)

• Electro-Hydraulic or Electro-Pneumatic DigitalServo Control

• Easy to use software for automatic testperformance

• Meets AASHTO, SHRP and ASTM standards• Triaxial cells for specimens from 71 mm (2.8”) to

150 mm (6”) diameter

• Available Indirect Tension fixtures to perform ASTMD4123 and SHRP P-7

• Complete “turn-key” systems

DESCRIPTION

The GCTS Resilient Modulus and Asphalt Testing System boastsa modular design which allows the system to be configured to test

asphalt and soil in a variety of modes. This system is based onthe GCTS SCON Digital Signal Conditioning and Controller andcan be supplied with pneumatic or hydraulic loader.

The GCTS Resilient Modulus software features built in AASTHO,SHRP, and NCHRP test sequences, and the capability to specifyuser defined sequences. Contact stress is automatically adjustedaccording to the above procedures as selected. Availablewaveforms include haversine, sine, square and triangular, alongwith a user defined waveform selection. Optional peak & valleycompensation ensures proper and quick matching of the loadparameters. Real time displays of the prescribed versus actual

dynamic load or the dynamic deformation measurements by eachsensor are always present. Deformation ratio of the two sensors,Rv (to ensure that the two deformation sensors are in agreement)and Mr are also calculated in real time. During export, curve fittingis done to fit the results to models that predict Mr as a function ofσm, σd, and CP (cell pressure). Four different functions are

calculated automatically (as required by AASHTO and NCHRPprocedures):

• Mr = K1 (σm)K2

• Mr = K1 (σd)K2

• Mr = K1 (σd)K2 CPK3

• Mr = K1 Pa[(Θ-3K6)/Pa]K2 [τoct/Pa + K7]K3

For testing asphalt at different temperatures, an optionalenvironmental chamber can be provided. This chamber canaccommodate triaxial, indirect tension, beam flexural fatigue,dynamic modulus and all the other testing fixtures GCTS offers.

Temperatures of ‑30° to +150°C (with liquid nitrogen boost) can

be achieved with this option.

SPECIFICATIONS

Contact GCTS for a system proposal including specificationsbased on your testing requirements.

AASHTO TYPE 2 Material Compaction Mold

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Pneumatic Soil Triaxial Testing System (STX-050)

• Closed-loop digital servo control

•

Automatic multi-stage testing• Static & dynamic loading

• Stress/strain path• Frequencies up to 5 Hertz

• Unsaturated soil testing upgrade• Complete test automation including

saturation, consolidation, & shear

• Affordably priced

DESCRIPTION

The triaxial testing system is intended for performing conventionaltriaxial tests, namely a constant rate of strain axial compressiontest, as well as advanced procedures such as Ko test andstress/strain path. This system also provides the necessaryversatility to easily perform dynamic tests for liquefaction, resilientmodulus, and cyclic strength, to mention a few. The triaxialtesting system includes all of the necessary software modules toperform the above tests.

The system includes automatic ball valve to automatically performB-value checks as well as to open/close the drainage path asrequired by different test stages.

The program helps the user select the proper testing parametersand provides the necessary information required to automatically

execute the desired test. The Graphical User Interface withcontext-sensitive online help and intuitive color windows helpsminimize learning time and enables laboratory personnel toconduct more complex, but realistic, testing programs atsubstantially lower operating cost and also with minimal operatorerror. The system manages all the instrumentation andcontinuously monitors sensor outputs to accurately account foruplift pressures acting on the loading piston, area changes,deformation and volume change sensors setup and re-positioning, etc.

Summary results for individual test specimens can be generatedin report format and files can be merged to produce a Mohr

envelope plot for up to five specimens. Data acquired from all thesoftware modules can be easily transferred to other programs likespreadsheets, databases, etc.

SHIPPING

Standard volume: . . . . . . . . . . 1.0m x 1.3m x 1.0mStandard weight: . . . . . . . . . . . 230 kg

See the STX-50 Brochure for full system specifications


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Cyclic / Stress-Path Soil Triaxial System (STX)

• Closed-Loop Digital Servo Control

• Specimen Diameter from 70 mm to 150 mm

•

Dynamic and Static Loading• Frequencies up to 30 Hz

• Electro-hydraulic

• Axial loads up to 100 kN

• Cell Pressures up to 2,000 kPa

• Meets ASTM D-3999 & D-5311 Standards

DESCRIPTION

The STX triaxial testing systems are intended for performingdynamic tests for liquefaction, resilient modulus, cyclic strength,complex modulus, and other dynamic triaxial tests including

synchronized cyclic axial and confining stress loading. Thissystem also provides the necessary versatility to automaticallyperform conventional triaxial tests as well as advancedprocedures such as stress or strain path.

The standard STX system includes all the necessary hardwareand software to automatically perform all triaxial stages includingsaturation, consolidation, and easily created cyclic and staticcustomized test procedures. It allows creation of an unlimitedvariety of waveforms including user-generated profiles such as adigitized earthquake record. The system software provides advicefor the user as to how to perform testing tasks.

The program helps the user select the proper testing parametersand provides the necessary information required to automaticallyexecute the desired test. The Graphical User Interface helps

minimize learning time and enables laboratory personnel toconduct more complex, but realistic, testing programs atsubstantially lower operating cost and also with minimal operatorerror.

Summary results for individual test specimen

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