Chapter 12. Testing of hardened concrete

We have seen that the properties of concrete are a function of time and ambient humidity, and this is why, in order to be of value, tests on concrete have to be performed under specified or known conditions. Different test methods and techniques are used in different countries and sometimes even in the same country. Because many of these tests are used in laboratory work, and especially in research, a knowledge of the influence of the test methods on the measured property is of importance. It is, of course, essential to distinguish between the effects of test conditions and the intrinsic differences in the concretes being tested.

Tests can be made for different purposes but the main two objectives of testing ...

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