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    concrete tests

    +1  Views: 974 Answers: 1 Posted: 11 years ago

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    The concrete slump test is an empirical test that measures the workability of fresh concrete.
    More specifically, it measures the consistency of the concrete in that specific batch. This test is performed to check the consistency of freshly made concrete. Consistency is a term very closely related to workability. It is a term which describes the state of fresh concrete. It refers to the ease with which the concrete flows. It is used to indicate the degree of wetness. Workability of concrete is mainly affected by consistency i.e. wetter mixes will be more workable than drier mixes, but concrete of the same consistency may vary in workability. It is also used to determine consistency between individual batches.
    The test is popular due to the simplicity of apparatus used and simple procedure. Unfortunately, the simplicity of the test often allows a wide variability in the manner that the test is performed. The slump test is used to ensure uniformity for different batches of similar concrete under field conditions,:127,128 and to ascertain the effects of plasticizers on their introduction.:134 In India this test is conducted as per IS specification.


    Read more here...http://en.wikipedia.org/wiki/Concrete_slump_test



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