Polycarboxylate superplasticizer with early strength performance

Keywords

Early strength polycarboxylate superplasticizer, calcium formate, amorphous calcium aluminate

Due to the remarkable retarding characteristics of polycarboxylate superplasticizer, in order to shorten the setting time in practical use, such as prefabricated concrete components, so that the product can be demoulded as soon as possible, so as to achieve the purpose of improving production efficiency, early strength polycarboxylate superplasticizer came into being.
Current research trends:
1. It is compounded with concrete early strength agent, so that the compounded mixed admixture has both high-efficiency water reduction and early strength performance, such as calcium formate, etc.
2. Compounded with the accelerator, the mixed admixture has the advantages of early strength, quick setting and high water reduction, such as amorphous calcium aluminate.
3. that molecular structure of the polycarboxylic acid is optimize, and the proportion of acid and ether is adjusted in the synthesis proces, so that the polycarboxylic acid superplasticizer with early strength characteristics is synthesized.