Water reducing agent is one of the most important types of concrete admixtures. It can be used alone or as a compound admixture with other functional components. It is a high performance water reducer for improving many properties of fresh and hardened concrete. The high performance water reducing agent is a water reducing agent having a higher water reducing rate, a better slump retention performance, a smaller drying shrinkage, and a certain air entraining performance than the superplasticizer. High performance water reducing agent has obvious technical advantages and high cost performance compared with other water reducing agents when formulating high strength concrete and high durability concrete.
Superplasticizer is an admixture with a high water-reducing rate when the concrete workability is about the same. It is also the most widely used admixture.
Chemical admixtures impart good fluidity, volume stability and high durability to concrete, and have become an indispensable raw material for high-quality concrete. Water reducing agent is one of the most important varieties. The emergence and popularization of polycarboxylate superplasticizers can be said to be an important leap in the history of admixture development and a challenge to the survival of other admixtures. However, since various admixtures have their own characteristics and characteristics, polycarboxylate superplasticizers and other superplasticizers will coexist for a long period of time and will continue to improve in coexistence development. And improve its performance.