Application advantages of polycarboxylate water reducing agent

As a new type of water-reducing agent after naphthalene-based, melamine-based, aliphatic-based and sulfamate-based water-reducing agents, polycarboxylic acid-based water-reducing agents have been widely used in many important projects due to their many unique performance advantages.

When using polycarboxylate superplasticizer, the water amount or sand rate must be adjusted according to the concrete design requirements through experiments to achieve the amount of water-reducing agent that meets the requirements for slump, strength, and condensation conditioPolycarboxylate superplasticizer is suitable for high-performance concrete, high-strength concrete, and large-flow concrete. When used for concrete higher than C50, raw materials should be selected according to relevant technical specifications, the appropriate mixing process should be determined, and a certain amount of experimental data should be obtained. In order to make the flow performance of the produced concrete meet the construction requirements, the concrete strength should have a certain surplus coefficient.

Polycarboxylic acid-based water reducing agenthas many unique technical performance advantages:

(1) Low dosage and high water reduction rate;

(2) Good fluidity maintenance of concrete mixture;

(3) Good compatibility with cement;

(4) The prepared concrete has a small shrinkage rate, which is beneficial to improving the volume stability and durability of concrete;

(5) It is environmentally friendly and pollution-free during production and use, and is a green additive.

High-efficiency water-reducing agent, the water-reducing rate can generally reach about 30%. Powdered polycarboxylate superplasticizer is generally used in special dry-mixed mortars, such as floor self-leveling agents, grouting materials, refractory castables and other products.