vilas nikam-nondestructive testing
TRANSCRIPT
A POWERPOINT PRESENTATION
ON NON-DESTRUCTIVE TESTING
PREPARED BY
MR.NIKAM VILAS NAVNATHLECTURER(M.I.T.DHANORE)E-mail:[email protected]
INTRODUCTION
• DEFINATION: Testing of concrete without destructing or disturbing or damaging or breaking actual structure of concrete member.
ADVANTAGES OF NDT
1) Wastage of material is avoided.2) Strength of member can be checked at any
time , at any point.3) Less time is required.4) Strength of wetted as well as dried sample
can be tested.
METHODS OF NDT
• Rebound Hammer Test.• Pulse velocity Test.• Surface Hardness Test.• Penetration & Pull out Technique.• Dynamic or Vibration Test.• Radioactive & Nuclear Method.• Magnetic & Electrical Method.• Acoustic & Emission Technique.
A) Schmidt’s Rebound Hammer Test.
Principle’s Rebound Hammer Test.
Actual Testing
How to Take Reading ?
But what is the Problem?
B) Pulse velocity Test.
• Principle:- Measurement of time of pulse to travel through a concrete member.
Working of Pulse velocity Test
Actual model
How to Take Reading ?
Conclusion
• Time Saving Technique.• Economy is achieved.• Comfortable.• Flexibility in state of material.
References
• Concrete technology by M.S SHETTY.• Concrete technology by M.L. GAMBHIR.