012 qualitynewsletter_january2012

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I N S I D E T H I S I S S U E :

Published By:

David Gillbanks (IMT/FLUOR) - Quality DirectorSoonho Yee (SSA) - QA/QC Manager

31st January 2012Volume 2, Issue 1

S A M C o A C R Y L I C A C I D C O M P L E X P R O J E C TJ U B A I L , S A U D I A R A B I A

QUALITY NEWSLETTERSAFETY FIRST - QUALITY MUST

P R O J E C T S U M M A R Y

Management Commitments 1

Project Highlights 2

Project Quality Statistics 2

Best Quality Practice 2

Lighter Side of Life 3

Site Post CardsPhotos 7, 8

It is with great pleasure that I welcome you to the New Year, and first of allI would like to thank you for the efforts from last year. By any means ofmeasurement, the results so far have been impressive.

From carrying out over 22,000 inspections, no failures in either compactiontests or concrete compressive strength tests, and a decrease on a monthlybasis in the present weld reject rate to 1.45%, we have set the basis forproviding the Client once again with a World Class facility.

We are now entering a phase of the Project where there will be a lot ofschedule pressure, rather than relaxing our quality standards, itsimperative that we raise them, since we cannot afford time to be lost

in carrying out remedial work.

There are many new challenges coming up, there are exotic materials (Zirconium and Hastel-loy), internal tray installation in columns will be starting, also extra attention must be paid to theInternal Cleanliness and Drying of the Pipe. We must ensure that our equipment preservationprogram continues, also that we respect the other disciplines working around us. There will alsobe more Licensor involvement than on our previous Projects, but IMT will ensure that this ismanaged in the correct manner.

In summing up, we have a very critical year in front of us, but if we maintain our current stan-

dards, based on our overall experience, Construction Resources, and Technical expertise avail-

able, we can be confident of a successful year ahead.

Contractor / Sub Contractor Article 4-6

QUALITY MANAGEMENT INCONCRETE CONSTRUCTION

Quality means excellence. Inmost industries especially inmanufacturing and process industry, theconcept of quality management is oldand used extensively. Nowadays, appli-cation of quality management is not onlybecoming popular but also mandatory inconstruction industry.

Just knowing some quality control meth-ods or procedures will not do any good.We must have adopt and implement thequality control methods and tools that

are available to us. The concept and its practice must betuned in harmoniously. Specific quality control requirements

for the WORK are indicated throughout the Contract Docu-ments. The requirements of this section are primarily relatedto performance of WORK beyond furnishing of manufacturedproducts. The term Quality Control includes inspection,sampling and testing, and associated requirements.

Quality assurance in construction activities guides the use ofcorrect structural design, specifications and proper materials

ensuring that the quality of workmanship by the contractor /subcontractor is achieved and finally maintaining the structureafter construction is complete through periodic assessmentsfor maintenance and repairs. Quality control has to be im-posed by the contractor whereas quality assurance is carriedout by a separate third party agency engaged by the owner.

Causes for poor quality can be summarized as ignorance,poor materials, poor design, poor detailing, poor workmanship,improper quantity of cement, improper concrete mix, excesswater, inadequate compaction, substandard forms, inade-quate curing, inadequate cover, poor construction, practices,poor supervision and above all lack of technical knowledge.

At Samsung Engineering, It has been the policy to clearlydefine, communicate, and understand the work requirements,

conforming to the code and specification, and perform andsupervise jobs right the first time and so is our commitment tototal Customer satisfaction and continual improvement in ourperformance to meet customer expectations at all times keep-ing high standards of QUALITY.

Owner: Saudi Acrylic Monomer Company(Tasnee)

Client: IMT / FLUOR

Consortium: SAMSUNG / LINDE

Contractor: SAMSUNG

Scope of works: EPC & Commissioning

Capacity: 250,000 MTPY of Acrylic andrelated Esters.

Project Duration: Oct. 2010 to Feb. 2013

Subcontractors:

NSH

ARCC

AL-NABA

AZMEEL

BO WON LEE

WINTECO

YANBU Steel

Patrick CaugheyConstruction Director

IMT

P.Y.SsongCSA ManagerSAMSUNG

Overall View of SAMCo Acrylic Acid Project on 30th January 2012


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P a g e 2V o l u m e 2 , I s s u e 1

P R O J E C T H I G H L I G H T S A N D N E W A C T I V I T I E S

Major Works in This Month : PCD Trench works @

Process area. Paving Works @ B25 area. Central tank area Dike

works A20 area foundation works for shelter & equipment. WWT

area Equipment foundation rebar & formworks. Rebar & formworks for

ring wall & installation of anchor bolt for butanol tank. R21 Cable

trench works Cooling tower basin area Precast beams installation &

grouting PR40 Foundation/pedestal works. Port area Dike works,

R50, R53 Column & beams installation works. Cooling Tower Sump

Internal Coating Works AG Spool Fabrication works @ shop UG Pip-

ing Erection, Testing, Wrapping and Holiday test. AG Piping Erection

Works. SW/CW Line Erection and Testing Works @ East Side Pipe

Support Fabrication Works. Piping Support Painting Works Ground-

ing Works. Cable Tray Installation Work Equipment installation @

Utility & Process Area. Auxiliary Boiler Erection @ A35 area Instru-

ment calibration works @ calibration shop.

Major Works in Next Month : Cooling Tower and

Process Sump Internal Coating Works AG Spool Fabrication works @

shop AG Piping Erection Works. Pipe Support Fabrication Works.

Pipe & Piping Support Painting Works Cable Tray Installation Work

Instrument Calibration @ calibration shop. Paving works @ Process

Area. Paving work for B10, B15, B20, B25, B40, B65, A35 and A40

area. Column and Pedestal installation for R19 Micro piling work for

R31, R41 and R42 Cable trench and Slab installation for Generator

room of Substation #7 Duct installation for Substation #7 and Substa-

tion #7-10 Concrete pouring for Roof slab of Car parking building

Column installation for RIB Building Steel structure erection start for

S01, S02, H01, H02, B20 and B25 area 11C-1501 HAC Column instal-

lation for B15 area 12C-0501 TGAA Column installation for B10 area

14C-3001 Dehydration Column installation for B10 area 10C-2501

Absorber installation for B65 area Field storage tank installation for

Process area and U&O area Electrical & Instrument panel installation

in Substation #7 and Substation #7-10. PORT > Column and Beaminstallation for R50 and R53 Grade slab and Roof slab work for Sub-

station #26 Finishing work for Guard house and operation build-

ing

Steel structure erection on pipe rack

UG piping installationfor ISBL in Port area AG piping installation for OSBL in Port area

Field storage tank installation Cable pulling work is in progress

P R O J E C T Q U A L I T Y S T A T I S T I C S

Company

Previous This Week New Assigned Cumulative

Manager,Supervisor

QC&Doc. Cont.

TotalManager,

SupervisorQC&Doc. Cont.

TotalManager,Supervi-

sor

QC&Doc. Cont.

Total

Samsung 3 26 29 0 0 0 3 26 29

Al Hajri 17 87 104 0 0 0 17 87 104

ARCC 4 34 38 0 0 0 4 34 38

Al Naba 1 3 4 0 0 0 1 3 4

Azmeel 1 4 5 0 0 0 1 4 5

Winteco 4 6 10 0 0 0 4 6 10

II. QA/QC Manpower Status

Yanbu 5 1 6 0 0 0 5 1 6

Sendan 2 1 3 0 0 0 2 1 3

V. Welding Defect Ratio (Piping) - Joint Basis

SAFETY FIRST -QUALITY MUST

Q U A L I T Y A T W O R K

WeldingPerform-

ance

Previous This Week Cumulate

Weld (BW)WeldRT'd

Rej.Rej.

Repair%

Weld(BW)

RT'd

Rej.Repair

%Weld(BW)

RT'd Rej. Repair %

AASite/Shop

Al Hajri 34,633 2,107 33 1.57% 2,097 146 2 1.37% 36,730 2,253 35 1.55%

ARCC 15,820 1,358 15 1.10% 1,130 43 3 6.98% 16,950 1,401 18 1.28%

Grand Total 50,453 3,465 48 1.39% 3,227 189 5 2.65% 53,680 3,654 53 1.45%

I. QA/QC Statistic

Classification Previous This Week CumulateIssued Closed Opened Issued Closed Opened Issued Closed Opened

Non ConformanceReport (NCR)

5 5 0 0 0 0 5 5 0

Quality Surveillance 81 74 7 1 1 0 82 75 7

Company Previous New Qualified Cumulate On vacation

Al Hajri 158 0 158 34

ARCC 133 0 133 1

WINTECO 28 0 28 0

SSA Direct (STL/STR) 7 0 7 0

III. Welder Status

YANBU 56 2 58 0

InspectionPerform-

anceRate Vs

Plan


PlanActual

Inspect.Not

ReadyRej. Plan

ActualInspect.

NotReady

Rej. PlanActual

In-spect.

NotReady

Rej.

Al Hajri 14,630 13,891 702 37 470 462 8 0 15,100 14,353 710 37

ARCC 3,204 3,116 84 4 156 156 0 0 3,360 3,272 84 4

AL Naba 1,553 1,505 46 2 36 36 0 0 1,589 1,541 46 2

Azmeel 1,991 1,869 112 10 71 71 0 0 2,062 1,940 112 10

Bowonlee 214 210 4 0 0 0 0 0 214 210 4 0

Winteco 240 232 7 1 11 11 0 0 251 243 7 1

Total 22,038 21,023 958 57 794 786 8 0 22,832 21,809 966 57

IV. Inspection Performance

Zamil 16 16 0 0 3 3 0 0 19 19 0 0

Sendan 50 50 0 0 13 13 0 0 63 63 0 0

Saudi Lab 9 9 0 0 4 4 0 0 13 13 0 0

Yanbu 131 125 3 3 30 30 0 0 161 155 3 3

VI. Welding Defect Ratio (Tanks) - Film Basis

Welding Perform-ance


TotalRT Film

Accept Rej. Repair %Total

RT FilmAccept Rej. Repair %

Total RTFilm

Accept Rej. Repair %

Winteco 246 234 12 4.88% 10 9 1 10.00% 256 243 13 5.08%

AA 84 75 9 10.71% 62 59 3 4.84% 146 134 12 8.22%

PORT 64 64 0 0.00% 21 19 2 9.52% 85 83 2 2.35%

Sub-Total 148 139 9 6.08% 83 78 5 6.02% 231 217 14 6.06%

Total 394 373 21 5.33% 93 87 6 6.45% 487 460 27 5.54%

YanbuSteel

This corner is dedicated to the men who put

quality into practice at site

Electrode butts

not scatteredanywhere duringwelding works.

Protection onflange facesduring fabrica-tion.

Preheat ofWeld Joint

Prior to Weld-ing

Preheatcheck usingTemperatureStick

Pipe SpoolsCleaning by

Air Blowing


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P a g e 3V o l u m e 2 , I s s u e 1SAFETY FIRST - QUALITY MUST

L i g h t e r S i d e o f L i f e Surgeon Vs. Mechanic

A heart surgeon took his car to his local garage

for a regular service, where he usually ex-changed a little friendly banter with the owner, askilled but not especially wealthy mechanic.

"So tell me," says the mechanic, "I've been won-dering about what we both do for a living, andhow much more you get paid than me.."

"Yes?.." says the surgeon.

"Well look at this," says the mechanic, as heworked on a big complicated engine, "I check

how it's running, open it up, fix the valves, andput it all back together so it works good as new..We basically do the same job don't we? And yetyou are paid ten times what I am - how do youexplain that?"

The surgeon thought for a moment, and smilinggently, replied, Try it with the engine running...

- Ayaz Ali (IMT)

Communication

A great deal of our communication is non-verbal andwe rarely realize the effect that it has on others. Our

tone of voice, our body language (particularly oureyes and face), our attitudes and our feelings, areconstantly in communication with others, expressinganger, fear, love, trust, rejection - in fact, all our feel-ings and emotions. We cannot hide what we mean;we may do so for a while, but finally the truthemerges.

Communication is not just with others, but also withthe self, with the Supreme Being and even nature.Being still, focused and open enables us to tune in toothers so that we can respond in an appropriate andmeaningful way, not simply in a mechanical way.

Here are some common reasons for blocks to com-munication:

* Too many thoughts, and an overload of words andactions, results in us being unable to think clearly.We lose the essence of what is trying to be con-veyed (transmitted) by the other.

* Being lost in our own feelings or ideas. In such astate we do not listen attentively to others.

* Remembering the past in a negative way. Thisdoes not allow us to tune in properly to our present

and future. When we do not communicate properlywith the needs of the present time, we loose opportu-nities.

* Lack of sincerity. When our thoughts and feelingsare honest and respectful, then the hearts of otherswill open to us. A positive highway of trust is builtand communication flows positively.

* Creating negative perceptions (understandings)and emotions about others i.e. how we visualize orlabel them. Such emotions, no matter how well hid-den, are finally always communicated to others on a

subtle (non-physical), non-verbal level, and create anatmosphere of tension and unease.

* Not letting go of negative perceptions(understandings) and emotions. The only method torevive our relationship with others is to let go ofnegativity on a daily basis, to prevent it from buildingup. Far too often, the build-up happens without useven noticing it and, we wonder why positive feed-back is not coming from the other side.

* Lack of silence. To go deep into the self and putour thoughts and feelings into silence enables themto become positive. The silent relaxation defuses

(reduces) anger and the blame and complaints thatoften go with it.

- NSH

Hoooo. Imscared please

dont!( that is if you can see

me here heheheh.. = )

WhaaarghCome out you little punk,

meet your doom!I will blow you with this

Im your worst nightmare!

Aarggh

-ARCC


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S A M S U N G E N G I N E E R I N G C O M P A N Y L T D .

Alignment of Rotating Equipment for a Trouble-free Operation

Alignment of rotating equipment is very important to

attain a trouble-free operation. Alignment should becompleted on any equipment that has a driver anddriven equipment.

The lack of alignment is a condition where the ro-tating centerlines of two or more machinery shafts

are not in line with each other. The purpose of alignment is toposition equipment so that any deviation of the shafts centerlineare within the given tolerance or criterion.

In order to avoid higher misalignment, the installing technician orcontractor should be made aware of and understand the specifi-cation and the alignment goals before starting the work. Heneeds to review the instructions for the pumps, driver, and cou-pling. The important part of alignment is that the technician ishaving the proper training and proper tools. Tools must be cali-brated if required before use.

Prior to alignment of an equipment train, the pre-alignment activi-ties outlined shall be completed by the equipment installer. A pre-alignment meeting shall be held between the designated ma-chinery representative and the installers personnel responsiblefor machinery alignment activities. Equipment outline drawingand vendors instruction shall be available. Data sheets with de-sired final reading shall be provided for the type of alignmentspecified. Take note that piping shall not be connected to themachinery until grouting, machinery shaft preliminary alignment.and final field welding have been completed.

The objective of proper alignment is to minimize equipment

downtime and maximize the operating life of the rotating equip-

ment.

Mr. Ricky HoyleQC Inspector

Mechanical(Rotating Equipment)

SAMSUNG

Computerized NDE (RT,PMI,PWHT,HT,PT,UT) Re-ports Using Field Material Control System (FMCS)

Field Material Control System (FMCS) is a software pro-gram used for material receiving & issuance, balance

control, piping spool, material forecasting control as wellas welding & NDE data control. Compare to manual sys-tem, this tool is more organized, flexible, compact, fasterand efficient. In particular, it is more easier for QC team to

control and monitor welding data and NDE requests like Radio-graphic Testing (RT), Positive Material Identification (PMI), Post-WeldHeat Treatment (PWHT), Hardness Test (HT), Liquid Penetrant Test(PT) and Ultrasonic Test (UT).

Once the result of the test arrive it will be encoded in the system formonitoring and reporting. Using this system we can easily determinehow many joints are welded, accepted, rejected and Hydro-tested etc.Thus, it is easy for QC Department to monitor the status in real timeas well as generating reports like weekly reports, welders rejectionrate and test status. It is clear that in terms of efficient ConstructionManagement and Quality Control the FMCS program is very usefultool for QC monitoring & tracing materials, welding data, NDE History,and testing.

QUALI TY I S EVERYONES RESPONSI BI LI TY

Mr. Alvin C. SilvaFMCS Operator

SAMSUNG

Congratulations!!! SAMSUNG Quality Award Winner

We as NSH had developed the unique methodology for steel struc-ture erection in the petrochemical field. As we all know that the petro-chemical field has standard steel structure like Pipe Racks andEquipment Structure. In general almost all the Pipe rack have similardimensional pitch and hence we decided go for Modular pre assem-bly and erection of the same and then connection of two modular byconventional method. For which we made a multi dimensional anddetachable bed frame assembly to use different Pipe rack with differ-ent dimensions. The beds frame were assembled near to the PipeRack where one location could yield 3 to 4 modular assembly erec-tion is possible based on the available crane capacity.

We followed the below procedure for modular assembly and erection;

The prefabricated base frame assembled and kept ready.

Two legs assembled together at ground and formed lattice frame using50t crane.

Scaffolding made around the lattice frame wherever the connectionmember is bolted and the ladder with pp rope for rope grabber for safeclaiming.

Two nos lattice frame lifted one after one and bolted on the base frame.

Interconnection beam erection using man lift & already built scaffold.

Bolt tightening using man lift & already built scaffold.

Module lifting & positioning with 160t crane

After two module erection the erection of interconnection is by conven-tional method using the already built SCAFOLD IN THE TWO MODU-LAR.

The Advantages of the Modular assembly and erection;

Ensured 100% safety on our workman.

Effective control on quality by inspecting all quality requirement @

ground itself. Effective supervision.

Low Cost and productivity is comparatively high.

N A S S E R S . A L H A J R I C O R P O R A T I O N

Modular Assembly & Erection

Congratulations!!! NSH Quality Award Winner

Mr. AppukuttyMechanical/Structural Manager

NSH


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A L R U S H A I D C O N S T R U C T I O N C O . , L T D .

Document Controllers Function

The function of a document controller's duties is toarrange paper documents in a way that is accessible,organized and secure.

FeaturesDocument controllers establish filing systems and prop-erly sort all paperwork into its respective places. Forcompanies required to submit paperwork to federal orstate regulators, controllers prepare all necessary docu-ments and ensure they are sent by established dead-lines.

Common Problems to Avoid

Employees writing documents do not understand the difference between a

Procedure and a Work Instruction. Terminology has not been defined, and is not used in a consistent manner. Revisions take too long so documents are not kept current. There is no process for tracking changes or training on changes. Inconsistent use of other documents such as Forms

Attachments

Drawings

Documents of external origin

Too many documents are distributed making it difficult to maintain the sys-tem.

Lack of control of documents of External Origin

Some database systems may lead to circles. Allows comments but notchanges. This may require a new draft version to allow for changes.

Not keeping distribution current.

How to Avoid These Problems

The basics of a good document control system include:Having good documentation by obviously; Summarizing the document User friendly Systems

Mr. MohammedSalahudeen

Document ControllerAZMEEL

A Z M E E L

C O N T R A C T I N G

Important Matters of Steel Fixing

Cleanliness of the rebars- That means corro-sion, dust, grease and any excess materials ordebris should be free from it.

Diameters of rebar - required diameter of rebarshould be placed as per plan. And in correctspacing and alignment.

Clear distance between bars- Usually Horizon-tal (Tension) bar should be placed with minimum1 bar diameter or 25mm gap and compression bar (vertical) should beplaced with minimum 1.5 bar or 40mm gap.

Concrete cover for Reinforcement- Steel should be protected fromair and moisture or in other words should not be exposed, because ifsteel is exposed it will lead to corrosion. Therefore it is very importantto follow the standard covering for reinforcement.

Lap Splice Length of the bars- Required lap splice length of the barsdepends on the diameter and its formation as per tension or compres-sion. As per standard drawings we follow for the lap splice length of thebars.

Placing of Stirrups- By following properly the design spacing as perdrawing.

Mr. Joey SolamilloQA/QC Manager

AZMEEL

Material & Equipment Preserva-tion

Materials and equipment shall be

stored at correct arrangement andrequisite environment. Material stor-age classification shall serve as aguide for proper area where equip-ment and materials should be storedand/or laid. Prior to the application ofpreservatives surfaces shall be

clean, free of water, grease, oil, metal particles dirt anddebris.

Preservatives and/or storage lubricants can adverselyaffect the safety and operating life of equipment if theyreact with the process fluid or operating lubricant. Spe-cific examples are (a) grease or oil-based products in

contact with components to be installed in oxygen orchlorine service, (b) preservatives contaminating interi-ors of fluorochlorohydrocarbon refrigeration compres-sors, and (c) hydrocarbon flush oil contaminating syn-thetic oil passages. The installer shall ensure that allpreservative and storage lubricants are suitable for thespecific application.

The Equipment shall have a temporary gauge to deter-

mine purge pressure. The equipment shall be inspected

weekly to ensure that the purge integrity is maintained.

Ebenezer E. CalMechanical QA/QC

ARCC

Material & Production Identificationand Traceability

This is to provide a system of main-taining the identification and traceabil-ity of purchased materials during re-ceiving, storage, transporting, fabrica-tion and assembly into finished prod-uct and until the excess material is

returned to the Warehouse.

Tagging and labeling of fabricated spools, sup-ports, equipments, valves, electrical and instru-ments is very important on field installation works.

Traceability is very useful for QC Inspection and

verification should not be neglected during the con-struction process.

Rhey R. RodelasQC Supervisor

ARCC

Congratulations!!! ARCC Quality Award Winner

Congratulations!!! AZMEEL Quality Award Winner


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A L N A B A Quality & Inspection (Relationship of Quality with Inspec-tion)

Quality:

Usually it is the goal of any construction company tohave a level of reputation in the field of construction. Itcan be possible only to develop and manage the quality.Quality control plan, quality assurance systems are theessential means prior to quality management for anyprocess. Therefore overall performance in a constructionsystem can only be controlled by focusing upon quality.Quality control is a single factor which can make an or-ganization recognized.

I intend to state herewith that only quality is the way to recognize an organi-

zation. In other words it is quality which makes an organization popular. Ialso personally rate the quality on top of all construction terms & activitiesto make a company reputable.

Inspection:

Inspection is the key element to control the process activities. If we analyzeany construction process statistically well find that inspection plays a hugerole in construction to control the quality. Hence to control the work qualityit is essential to manage and control well the site inspections on regularbasis for any organization.

Inspection may relate the quality as follows.

No Inspection No Quality, Know Inspection Know Quality

So inspection should be implemented & control for each activity and a crewlevel inspection shall be done for controlling the quality activity. Test re-ports of required activities are the proof of inspected quality work.

NCE appreciate the implemented inspection (AFI) System for SAMCo AAProject having being compiled for each construction activities to acquiregood quality & request all good self to kindly value the quality system of thisproject; represents our characteristic for the same project.

Mr. AFAQHUSAIN

QA/QC DocumentController

Quality Inspection Experience

What comes into your mind if you hearda word that described an experiencethrough various Quality Matters?

Having actual on-the-job inspectionexperience is very important. Textbooks and classroom studies simply donot provide all of the things needed toinspect effectively. Experience will aidthe inspector in becoming more efficient.

In time, better ways of thinking and working will develop.

On-the-job experience will also help the inspector developthe proper attitude and point of view regarding job assign-ment. After working with various codes and specifications,the inspectors effectiveness will improve because of animproved understanding of various requirements. To empha-

size the need for inspection experience, it is commonplaceto see a new inspector working along with a well experi-enced one so that proper techniques can be passed along.

TO SEE IS TO BELIEVE

W I N T E C O C O R P O R A T I O N

Alvin C. CuetoQA/QC Engineer

Storage tank building is not among the mostcomplicated constructions in the field ofheavy industries. Owners determine thatneed by giving all the parameters and in-cluding the particular code that will governits design. Compliance to the code continuesthroughout the period of building until it ishanded over and accepted by the owner.

It is in the gathering of materials that makesthe complication because the global marketcannot provide the materials the way it iswanted and its availability at the time of

need. At this juncture the challenges begin because engineersdouble their efforts to put the tank on quality path complying to thecodes and standards even with material variability.

In the erection arena, the environment is rather controlled be-cause the materials, manpower and equipments are in the hands

of the team builders. Guided by procedures, codes and standardswith efficient construction maintaining safety, high quality & con-struction acceptability makes tank building an easier task.

NELIO C. GUSTOProject Manager

Yanbu Steel

Y A N B U S T E E L

Congratulations!!! WINTECO Quality Award WinnerCongratulations!!! YANBU STEEL Quality Award Winner

Porosity is the result of gas entrapment inthe solidifying metal. Porosity can take

many shapes on a radiograph but often appears as dark roundor irregular spots or specks appearing singularly, in clusters, orin rows. Sometimes, porosity is elongated and may appear tohave a tail. This is the result of gas attempting to escape whilethe metal is still in a liquid state and is called wormhole porosity.All porosity is a void in the material and it will have a higher ra-diographic density than the surrounding area.

Cluster porosity is caused when flux coated electrodes are con-taminated with moisture. The moisture turns into a gas whenheated and becomes trapped in the weld during the weldingprocess. Cluster porosity appears just like regular porosity in theradiograph but the indications will be grouped close together.

Other potential contamination problems are associated with ma-terial preparation. Cutting or grinding methods, which may de-posit contaminants on to the plate surface or sub-surface, cuttingfluids, grinding disc debris, and saw blade lubricants are all ar-eas of concern. These material preparation methods should beclosely evaluated as controlled elements of the welding proce-

dure and not changed without revalidation. Certain types ofgrinding discs, for example, can deposit particles within the alu-minum that will react during welding and cause major porosityproblems. Failure to protect weld area from wind is a majorcause of porosity.

IMT (Client Inspectors Column)

Mr. Mohammed IqbalQC InspectorPiping

IMT (SAMCo)


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Major Works in This Month :Cooling Tower Excavation at South Side, Basin Sump Middle Part Foundation Concreting, Cooing Tower Wall Rebar Installation. TankFoundation Concreting. PRO1, PR02 Columns Concreting. Sump Concreting. Car Parking Foundation Concreting. Substation Ground-ing Cable Laying. UG Cooling Water Piping Fabrication Works.Major Works in Next Month :

Cooling Tower Wall Concreting. Pipe rack Column & Beam Concreting. Fabrication of Precast concrete members. Equipment Founda-tion Anchor Bolt Installations. Substation Grounding Works.


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TECHNICAL TOPICS


Prepaid Telephone Card Distribution to Employees by IMT / SAMSUNG for Quality Excellence at Site

NSH/Samsung/

IMTTeamBuilding

Party

ARCC/Samsung/

IMTTeamBuilding

Party


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Major Works in This Month :Cooling Tower Excavation at South Side, Basin Sump Middle Part Foundation Concreting, Cooing Tower Wall Rebar Installation. TankFoundation Concreting. PRO1, PR02 Columns Concreting. Sump Concreting. Car Parking Foundation Concreting. Substation Ground-ing Cable Laying. UG Cooling Water Piping Fabrication Works.Major Works in Next Month :

Cooling Tower Wall Concreting. Pipe rack Column & Beam Concreting. Fabrication of Precast concrete members. Equipment Founda-tion Anchor Bolt Installations. Substation Grounding Works.


TECHNICAL TOPICS


Auxiliary Boiler @ A35 Area ARCC1st Lift 17ST-3501 Stack at A25 AreaARCC

Fin Fan Coolers @ PR30ARCC Erection of Platform & Stairway 25TK-8020WINTECO

Welding of Roof Plate 10TK-2001WINTECO Construction of Duct Bank @ 230 kv SubstationAl-Naba

Roof Slab Form Work & Concreting @ Cooling TowerNSH 11V-1503 Erection @ B15 AreaNSH

End...