Polycarboxylate acid superplasticizer(retarder Concrete Admixture) is a new type of concrete additive first developed and applied by Japan in the mid-1980s.
It is mainly through the copolymerization of Concrete additives chemicals under the action of initiator to branch the side links with active groups to the main chain of the polymer, so that it can simultaneously have the functions of high efficiency, controlling slump loss and anti-shrinkage, and not affecting condensation and hardening of water coagulation, so as to produce the application effect of extremely high water reduction rate and minimal slump loss. It can make concrete with high fluidity even at low content, and also has low viscosity and slump retention performance at low water-cement ratio. It has better compatibility with different kinds of cement and is an indispensable material for high strength and high fluidity concrete.
The active monomers of Water base chemical Plasticizer are mainly unsaturated lipids and unsaturated ethers, which are the main contributors to the functional structure of Water base chemical Plasticizer, and the monomer of retarder Concrete Admixture is the most important raw material for the production of retarder Concrete Admixture.
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