Regarding the concrete mixture, both the initial and late curing after pouring are important.
Polycarboxylic acid water reducer has little effect on the drying shrinkage performance of concrete, or the addition of polycarboxylic superplasticizer does not increase the drying shrinkage of concrete. It does not mean that the concrete mixed with polycarboxylic acid water reducer can cancel the curing. .
Same as the concrete mixed with other admixtures, the concrete mixed with polycarboxylic superplasticizer can be better prevented from plastic shortening cracks by pouring, vibrating and compacting the surface of the concrete.
moisturizing curing is not only the requirement for the normal increase of concrete strength, but also a way to avoid its drying and shortening cracks.
In order to enhance the crack resistance of the concrete mixed with polycarboxylic acid, the fiber mixed together is also important, and this kind of concrete still needs good wet curing to prevent the structure from cracking.
