What is meant by slump? Does the extra slump used for pumpable concrete affect the strength of concrete?
Slump is an indication of water cement ratio in concrete. Slump is measured in millimeter. More the slump more is the amount of water in concrete. In case of pumpable concrete a slump of 80 to 120 mm is desirable. Without compromising on water cement ratio this high slump of concrete is achieved by designing the mix and adding certain admixture to concrete. The strength of concrete is not affected due to high slump of pumpable concrete.
