1. The function and application of segregation agent
Segregation is the process of mixing, transporting, pouring and vibrating concrete. During the process, excessive adhesion between particles causes particle separation and surface roughness. Segregation agents mainly prevent segregation and surface cracking of concrete by changing the adhesion between concrete particles.
In concrete construction, due to various reasons, such as too low cement content, too small coarse aggregate, too long mixing time, etc., concrete will segregate. Seriously affects the strength and durability of concrete. Commonly used segregation agent materials include polymer segregation agents and segregation agents that reduce surface tension. By adding these segregation agents, the segregation of concrete can be effectively prevented.
2. The function and application of water-reducing agent
Water-reducing agent is a kind of water-reducing agent that can An additive that reduces the moisture content of concrete without changing its basic properties. Their main function is to improve the fluidity and workability of concrete and improve the working performance of concrete.
In the construction of concrete, if the water content of the concrete is too high, the slump of the concrete will be reduced, making it difficult to flow, and the construction will be more difficult. Especially in summer when the temperature is high, due to the evaporation of water, the moisture content of concrete decreases, and the working performance of concrete will decrease. At this time, adding water reducing agent can solve this problem.
Commonly used water reducing agents mainly include organic acid salt type, sulfonate type and aliphatic type.
3. The difference and application of segregating agent and water reducing agent
Through the above introduction, It can be seen that although segregation agents and water reducing agents are both concrete additives, their functions are different. Segregation agents are mainly used to prevent segregation and surface cracking of concrete, while water-reducing agents are mainly used to reduce the water content of concrete to improve the working performance of concrete.
In practical applications, segregating agents and water reducing agents can be used at the same time to achieve the best results. For example, when the temperature is high in summer, the water content of concrete will be too high. While adding water-reducing agent to improve the working performance of concrete, you can also add segregation agent to prevent the segregation of concrete. This can ensure the working performance and mechanical properties of concrete.
In short, segregation agents and water-reducing agents are important additives in concrete. Appropriate additives should be selected according to the actual situation of the concrete. At the same time, attention needs to be paid to controlling the dosage of additives to avoid affecting the strength and durability of concrete. </p
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