We need to use a variety of different building materials during the construction of our house. The most familiar of these is cement. As for the secret between cement and concrete, did you know the existence of polycarboxylate superplasticizer?
Concrete water reducing agent is a kind of admixture. Water reducing agent is the largest, most widely used and most kinds of concrete admixture. Other kinds of concrete admixtures, such as air entraining agent, retarder, expansion agent, etc. are generally used as auxiliary additives with water reducing agent. Therefore, concrete admixture mainly refers to water reducing agents in the industry.
Water reducing agent can significantly reduce the amount of water used for mixing concrete. Most water reducing agents belong to anionic surfactants. It is easy to dissociate into negatively charged anions and metal cations in water, so that a large number of water-reducing agent anions are adsorbed on the surface of cement particles, and the attraction between cement particles is electric repulsion, and cement is fully diffused to improve workability. In addition, it can improve the hydration process of cement, promote the growth of cement mineral crystal, improve the pore structure of cement stone, and improve the density of concrete.
The main functions of water reducing agent include:
First, under the condition of maintaining workability and water-cement ratio unchanged, cement consumption can be reduced and cement is saved.
Second, the workability of concrete can be improved without reducing the strength of concrete under the condition of keeping the mixture ratio of concrete and water cement ratio unchanged.
Third, under the condition of maintaining workability and cement dosage unchanged, water-cement ratio can be reduced and concrete strength and durability can be improved.
Fourth, some of the water reducing agents have a relief effect on concrete, the final setting time delayed two to three hours.
Polycarboxylate superplasticizer is a high-performance water reducing agent, widely used in highway, bridge, dam, tunnel, high-rise building and other projects. The product is environmentally friendly, non-flammable and non-explosive, and can be safely transported by train and car. In many concrete projects, the traditional high efficiency concrete can not meet the engineering needs more and more because of the limitation of technical performance.
As a new generation of water-reducing agent that has attracted much attention at home and abroad, it really achieves the effective molecular structure design according to the action mechanism of dispersed cement. It has super dispersed type, can prevent the loss of slump of concrete without causing obvious delay, and plays a higher plasticizing effect under low dosage. Moreover, it has good fluidity retention, large degree of freedom for cement to adapt to a wide range of molecular structures, multiple synthetic technologies and high performance room. Therefore, the concrete enhancement effect is significant, can reduce concrete shrinkage, give concrete excellent construction workability, good strength development and excellent durability.
Polycarboxylate superplasticizer Malaysia has good comprehensive technical performance advantages and environmental protection characteristics, which meets the needs of modern concrete engineering. Thus, it is gradually becoming the first choice of admixture for the preparation of high performance concrete.