A Report Of One-Day Workshop On
NON-DESTRUCTIVE TESTING (NDT)
10.10.2017
A Report Of One Day Workshop On
NON-DESTRUCTIVE TESTING (NDT)
A Paradigm Shift in Retrofitting Industry
2017
BansilalRamnath Agarwal Charitable Trust’s
Vishwakarma Institute of Information Technology,
Kondhwa (B.K), Pune 411048
.-A Paradigm Shift In Retrofitting Industry
Indian Concrete Institute
Students’ Chapter
Department of Civil Engineering, VIIT, Pune
NON-DESTRUCTIVE TESTING (NDT) – A Paradigm Shift In Retrofitting
2 ICI STUDENTS’ CHAPTER, VIIT, PUNE
Organized By
Indian Concrete Institute (ICI)
Students’ Chapter, VIIT, Pune
Tuesday, 10th October, 2017
From 9.00 AM to 8.00 PM
At
Seminar Hall, E-building,
Vishwakarma Institute of Information Technology, Kondhwa
Pune- 411048
Mrs.A.G.Tanawade,
ICI Co-ordinator,VIIT
INTRODUCTION
The Indian Concrete Institute (ICI) Students’ chapter, Civil Department,
Vishwakarma Institute of Information Technology (VIIT), Pune successfully
organized and held a One-Day workshop on NON-DESTRUCTIVE TESTING
(NDT) on Tuesday 10th
of October,2017 , starting at 9.00 AM to 7.00 PM with
participation of total 80 students and 10 teaching staff.
The workshop conducted in Seminar hall , E-building, Vishwakarma Institute of
Information Technology (VIIT), kondhwa, pune on 10/10/17, was a part of the efforts
to improve student’s knowledge and employability skills in construction industry.
The workshop was taken by Er. Ravi Ranade, Managing Director of Construction
Diagnostic Centre.(CDC) Pvt .Ltd, a NDT expertise for structural and quality audit,
also structural restoration consultants. Their office located at Erandawane, Pune.He is
an expert in Non-destructive testing, backed up by excellently qualified labs and
employees. He may strike as a man of Time, due to his strict punctuality.
NON-DESTRUCTIVE TESTING (NDT) – A Paradigm Shift In Retrofitting
3 ICI STUDENTS’ CHAPTER, VIIT, PUNE
BACKGROUND
This is a post-event wrap up report on the One-Day workshop on NON-
DESTRUCTIVE TESTING (NDT) on Tuesday 10th of October, 2017, organized by
Indian Concrete Institute (ICI), Students’ Chapter, VIIT, Pune. The report consists of
executive summary, specific details and other technical details which will give an
insight of the workshop and live demo of equipment on site.
WORKHOP AGENDA
The agenda of this workshop was to develop and advance the employability skills of
enthusiastic students and expose them to the retrofitting industry, trends and practices.
WORKSHOP OBJECTIVE
1. To understand how to operate the NDT equipments, their working on site,
2. To spread awareness and expose students to retrofitting industry,
3. To develop and embed new skills in students
4. To be prepared to apply their knowledge of NDT in the industry
METHODOLOGY
1) Presentation : Theory session will inform students and spark their interests,
2) Experience sharing : This will amaze the students by actual site scenarios,
3) Brainstorming : Clear the doubts and improve overall understanding,
4) Discussions : Deepen the understanding and explain the key concepts,
5) Site Demonstrations: Better understanding of procedure and handling of
equipments.
PARTICIPANTS: A total of 80 students and 10 staff members attended this.
WELCOME ADDRESS
The morning of workshop day was itself warm and exciting. The host, Ms.Sonali
Sonker, a fellow student of TE-A, Civil welcome students and Speaker
Er.RaviRanade. Felicitation to expert done by H.O.D of Civil department, S.G.Joshi.
PROCEDDING DETAILS
SESSION 1 :NDT : Introduction and why NDT.
Non-Destructive Testing (NDT) is the process of doing inspections, testing, or
evaluating materials, components or assemblies for defects without destroying the
material or component or the use of non-invasive techniques to determine the integrity
NON-DESTRUCTIVE TESTING (NDT) – A Paradigm Shift In Retrofitting
4 ICI STUDENTS’ CHAPTER, VIIT, PUNE
of a material, component or structure”. In other words, “Inspect or measure without
doing harm.”
NDT plays a vital role in assuring the safe operation of equipment and systems.
Industries that utilize NDT:
Airline and Aerospace
Automotive and Railroad
Construction
Hydroelectric, Fossil, Nuclear Power
Textile and Manufacturing
Chemical and Petrochemical
Logistics and Supply
Medical and Pharmaceutical.
Uses of NDT: Flaw Detection and Evaluation - the size, shape, or orientation of a
flaw (such as a crack or porosity)
Leak Detection
Location Determination
Dimensional Measurements
Structure and Microstructure
Characterization
Estimation of Mechanical and Physical
Properties
Stress (Strain) and Dynamic Response
Measurements
Material Sorting and Chemical
Composition Determination
the thickness of a material or coating
the hardness of a material
a material’s electrical conductivity
The size, shape, or orientation of a flaw (such as a crack or porosity),
The thickness of a material or coating
The hardness of a material
The material composition (example, the carbon content in steel)
material’s electrical conductivity
Test methods may be used to determine:
Lime is more durable than cement. For ex. Old heritage monuments/wadasmade of
lime, are still standing whereas buildings of cement cannot even reach 80 years in
practice due to deterioration etc. There are no criterias for durability, no regulations.
Sadly India has not made a IS code of their own till now and to be honest no-one
Speaker Er. Ravi Ranade
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follows the IS Code on site practice and this reflects in the death rate during disasters.
It is expected that by 2025, we will have cement free construction- Geo Polymer
Concrete.
Cube Strength Depends on:
1) Age
2) Size of mould-cube/cylinder
3) Shape of mould
4) Mould material and texture
5) Compaction
6) Curing technique
7) Moisture conditions at time of
testing
8) Type of CTM
Er.Ravi Ranade during lecture.
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SESSION 2: Methods of NDT
Based on principle, they are classified as follows:
Group - A - Surface Hardness Methods
Rebound Hammer Test
Penetration Test – Windsor Probe
Group - B - Dynamic or Vibration
Methods
- Resonant Frequency – Only Lab
method
- Ultrasonic Pulse Velocity
- Acoustic Emission
- Impact Echo
- Transient Dynamic
- Sonic / Pulse Echo , Impulse Response
- Vibration Measurement
Group - C - Magnetic Methods
- Reinforcement Detectors & Cover
meters
Group – D – Electrical Methods
- Dielectric Measurement ( Moisture
Content )
- Electrical Resistivity
Group - E - Electro- Magnetic Methods
- Radar (Ground Penetrating Radar )
- Group – F – Radioactive / Infrared /
Thermal Methods
- X – Radiography
Group – G - Penetrability Methods
- Air / Gas / water permeability Test
- Gamma Radiography
Group – H - Partially Destructive Tests
- Penetration Resistance Test (
Windsor Probe )
- Pull - out test
- Pull - off test
- Break – off test
- Core cutting
Group - I - Other properties of fresh /
hardened concrete
- Chemical tests
- Cement Content &Agg / Cement
ratio
- Sulphate determination test
- Chloride determination test
- Alkalinity test
- Carbonation test
- Crack measurement & monitoring
- Abrasion resistance test
- Fresh concrete tests for W/C ratio
and
- compressive strength
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Based on parameter, the methods can be classified as follows:
FOR CONCRETE
- Compressive strength Rebound Hammer
- Windsor probe,
- Ultrasonic Pulse Velocity,
- Core
- Capo,
- Pull Out
- Combined methods
Flexural Strength- Break – off
Direct tensile strength- Pull off
Concrete Quality
- Ultrasonic Pulse Velocity,
- Homogeneity Pulse echo,
- Honeycombing, voids, Endoscopy,
- Gamma Ray Radiography
- GPR
Damages
- Fire / blast / Rebound Hammer
- Earthquake Ultrasonic Pulse Velocity
- Core Test
- Acoustic Emission
Cracks,Delamination
- Ultrasonic Pulse Velocity-water tanks /
Acoustic Crack Detector
- pavements / bridges Infrared
Thermography
- Dye Penetration Test
- X – ray Radiography
- Gamma Ray Radiography
- Crack scope
Pile Integrity
- Pulse Echo
- Ultrasonic Cross Hole
- Logging
- Thermal Integrity Profiling
FOR STEEL
Location, cover, size
- Rebar locator , Bar size
Corrosion Half
- Cell Potential
- Resistivity
- Polarisation
- Carbonation
- Chloride Content
Condition -Endoscope / Bore scope
Integrity & Performance Tapping
- Pulse – echo
- Acoustic emission
- GPR
- Load Test
Utility Mapping - GPR
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FELICITAION OF STUDENTS AND STAFF ATTENDEES-By Ravi Ranade
.
SESSION 3: Details Of Methods Of NDT
Number of Tests necessary for various test methods: Test method Nos. of Individual readings
Recommended at a location
Standard cores = 3 Rebound hammer = 12
Ultrasonic Pulse Velocity = 2 Windsor Probe = 3
Pull – out = 4 Pull – off = 6
Break – off = 5
Medical Science V/s Concrete Science
Orthopedic Doctor - Structural Engineer
Pathologist - NDT Consultant
Surgeon - Structural / Rehabilitation
Consultant
Medicines - Construction Chemicals
Stethoscope - Rebound hammer
Sonography - Ultrasonic Pulse Velocity
Biopsy - Core cutting
Plaster for fracture - Jacketing to member
Then various case studies were presented which represented the vital role of NDT and its merits and
how it helped in actual site situations.
Felicitation of Prof.H.B.Dhonde by Joshi Sir
Er.Ravi Ranade felicitating a student.
Er.Ravi Ranade felicitating a student.
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SITE DEMONSTRATION: AT SUKH-SAGAR CONSTRCUTION SITE.
ICI, Hon.Secretary- Er.Prasad Sevekari also joined us at site demonstration. The live demo of
almost all the equipments such as Rebound hammer, UPV method, moisture meter etc and their
handling was successfully carried on site.
VOTE OF THANKS given by Mrs.A.G.Tanawade and Prof.H.B.Dhonde, on behalf Civil
Department,VIIT, Pune.
Site photos during workshop :--
Site Demo Of Radar Scanning of Slab
Site Demo Of Rebar Locator
ICI Chairman Er.UjwalKunte at Site
Group Photo at Site with Er.Ranade and Er.Prasad
Sevekari
Performing Ultra Sonic Pulse Velocity test
Group Photo at VIIT with Speaker Ravi Ranade