Awarded as the best online publication by CIDC

If concrete compression test fails, should Schmidt hammer test be adopted as an alternative test to prove the concrete strength?

The Scmidt hammer test is based on the elastic rebound of hammer which presses on concrete surface and it measures the surface hardness of concrete. Since the test is very sensitive to the presence of aggregates and voids at the concrete surface, it is necessary to take more than 10 readings over the area of test.

However, it should be noted that Schmidt hammer test measures surface hardness only but not the strength of concrete. Therefore, it may not be considered a good substitute for concrete compression test.

Advertisements

This question is taken from book named – A Self Learning Manual – Mastering Different Fields of Civil Engineering Works (VC-Q-A-Method) by Vincent T. H. CHU.

Share this post

Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.

If you have a query, you can ask a question here.

3 comments on "If concrete compression test fails, should Schmidt hammer test be adopted as an alternative test to prove the concrete strength?"

Sathiyaseelan says:

How to calculate the strength of concrete from rebound number?

HARSHAL S KHODE says:

Dear Sir,

Please submit the details calculation sample for rebound hammer test data.

Regards
HARSHAL S KHODE

r.m.l.u. rathnayaka says:

Please send be data about how to calculate rebound hammer samples data

Leave a Reply

Your email address will not be published. Required fields are marked *

Ask a question