For the dry concrete, generally, water is used to moisturize the surface of the concrete to improve the performance. The water reduction agent is added during the concrete mixing process. The purpose is to reduce the amount of concrete in the concrete, improve liquidity, delayed condensate time, or increase intensity.
Specifically:
Add water: When the surface of the concrete is dry or the surface water evaporates too fast due to the dry environment, the surface of the concrete can be moisturized by adding water to prevent premature dehydration and increase the working performance.
Water reduction agent: Water reduction is a chemical additive that is used to add during the mixing of concrete to reduce the amount of cement required for concrete. It can improve the liquidity of concrete, reduce viscosity, improve working performance, and delay the concrete time of concrete to a certain extent. The use of water reducing agents can improve the strength and durability of concrete.
It should be noted that the purpose of adding water is to moisturize the surface of the concrete, and the use of the water reduction agent is in the concrete mixing stage. During the construction process, according to the specific conditions and the design requirements of the concrete, the water reduction or water reduction agent should be properly selected, and operations should be performed in accordance with the relevant building construction specifications. At the same time, strictly follow the steps of concrete construction and pay attention to concrete maintenance to ensure the quality and performance of concrete.