VILAS NIKAM-NONDESTRUCTIVE TESTING
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Transcript of VILAS NIKAM-NONDESTRUCTIVE TESTING
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A POWERPOINT PRESENTATION
ON NON-DESTRUCTIVE TESTING
PREPARED BY
MR.NIKAM VILAS NAVNATHLECTURER(M.I.T.DHANORE)E-mail:[email protected]
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INTRODUCTION
• DEFINATION: Testing of concrete without destructing or disturbing or damaging or breaking actual structure of concrete member.
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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.
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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.
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A) Schmidt’s Rebound Hammer Test.
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Principle’s Rebound Hammer Test.
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Actual Testing
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How to Take Reading ?
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But what is the Problem?
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B) Pulse velocity Test.
• Principle:- Measurement of time of pulse to travel through a concrete member.
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Working of Pulse velocity Test
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Actual model
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How to Take Reading ?
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Conclusion
• Time Saving Technique.• Economy is achieved.• Comfortable.• Flexibility in state of material.
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References
• Concrete technology by M.S SHETTY.• Concrete technology by M.L. GAMBHIR.