What are the functions of concrete admixtures?

Concrete admixtures are substances that can improve and adjust the properties of concrete. When concrete admixtures were first used, it was mainly to save cement. However, with the increase in the types of concrete admixtures, they are now more widely used to improve the performance of concrete, accelerating construction progress and making the process more convenient and efficient. So, what are the functions of concrete admixtures? Let's introduce the functions of concrete admixtures below.

1. Concrete admixtures can reduce the water content of concrete, and even increase the fluidity of concrete without increasing the water content.

2. It can adjust the setting time of concrete.

3. It can reduce bleeding and segregation, improving workability and resistance to water erosion.

4. It can reduce slump loss and increase the reliability of concrete.

5. Concrete admixtures can appropriately reduce shrinkage, and adding an expansive agent can also compensate for shrinkage.

6. It can also slow down the early hydration heat of concrete, reducing the rate of temperature rise in large areas of concrete and thus avoiding cracks.

7. It can improve the early strength of concrete and prevent freezing at low temperatures.

8. It can also increase frost resistance, abrasion resistance, and corrosion resistance.

9. Concrete admixtures can prevent steel corrosion and reduce the diffusion of chloride ions.

10. Concrete admixtures can also be used to produce concrete with other properties.

11. Concrete admixtures can also reduce the viscosity coefficient and other parameters of concrete.