Hence it is desirable to keep the mix proportions, type of cement and sand or other fillers as well as the method of production constant. A relationship exists between the density and the strength. Any change to the factors mentioned above could vary that relationship quite markedly. The compressive strength can be significantly increased through effective and special curing methods. Moist curing has a profound effect on increasing compressive strength.
Steam curing is another option, if curing time is crucial.
There are various methods and it can be applied in particular with factory produced building elements such as blocks and panels. Shear reinforcement is seldom required in flooring and roofing units. The greater extent of shrinkage occurs during the first 28 days, after which time it is negligible. If a crack occurs beyond the initial 28 days after the concrete was poured, it is virtually impossible that this is due to shrinkage. All rights reserved.