What is concrete slump test? step-by-step procedure
I think you will agree with me if I say, concrete is one of the major construction material worldwide.
To have a clear idea about the amount of concrete used every year, we may have a look at the following survey report.
Wait! why we are discussing concrete consumption in the slump test article!
Why does this matter?
It matters because concrete is a mixture and slump test result is a direct indication of concrete mixture quality. It is the best way to comment on the quality of fresh cement on site.
In this article, we have focused to enlighten you with all the necessary information on slump test like definition, available international standards, pieces of equipment you will need to perform a slump test.
And more importantly, the step-by-step procedure of slump test followed by the list of cautions during the test and way to measure the workability from the test result.
Concrete Slump Test
The concrete slump test is an on-the-spot test to determine the consistency as well as workability of fresh concrete. This test plays a vital role in ensuring immediate concrete quality in a construction project. It is used almost in every construction sites.
The slump test is very simple and easy to handle. It also demands comparatively less equipment and can be done in a short period of time. These advantages of slump test have made it very popular all over the world. In the slump test, workability of concrete is not measured directly. Instead, consistency of concrete is measured which gives a general idea about the workability condition of concrete mix.
Concrete Slump Test International Standard
Various international codes have specific testing standards for concrete slump test. These standards specify methods, equipment for determining the consistency of fresh concrete by the slump test. For acceptance and reliability, It is essential to maintain strict compliance with these standards during the slump test for concrete. The standards for the concrete slump test are followings.
- American Society for Testing and Materials (ASTM): ASTM slump test standards are ASTM C 143, ASTM C143M.
- The American Association of State Highway and Transportation Officials (AASHTO): AASHTO slump test standards are AASHTO T119, AASHTO BS1881.
- British & European standard: British & European slump test standard is BS EN 12350-2.
- Indian standard: IS 1199 – 1959
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