The first step is to take a test sample from the large batch of concrete. This should be done as soon as discharge of the concrete commences. The sample should be representative of the concrete supplied. The sample is taken in one of two ways:
For purposes of accepting or rejecting the load: Sampling after 0.2 m3 of the load has been poured.
For routine quality checks: Sampling from three places in the load.
This test is performed to check the consistency of freshly made concrete. The slump test …Read More..
Compression tests are conducted on cubes made from the concrete that is being placed and …Read More..
Air-entrained concrete is typically specified in areas of the country where frost-related damage can occur. …Read More..
Concrete slabs appear to be solid and hard, but in reality, concrete is moist stuff. …Read More..
Although concrete typically begins its life at a highly basic pH of about 13, the …Read More..