cement admixture的意思|示意

Cement Admixture Usage Explained

Cement admixture is a material used in the production of concrete, mortar and other cement products. It is added to the mix to change its characteristics or to create a certain desired effect. Generally, it is added to increase the strength of concrete, improve the workability or reduce its drying time.

The use of admixtures in the production of concrete is widely accepted and widely used in the construction industry. The most common type of admixture is air-entrained agents. These agents increase the air content of the concrete, allowing more air to be trapped within the concrete during mixing. This improves the concrete's freeze-thaw resistance, and reduces its susceptibility to crack.

Another popular type of cement admixture is retarders. These work by reducing the rate of the cement's hydration process. This allows more time for the concrete to be worked and placed before it sets, making it more workable and less likely to crack during placement.

In addition, there are other types of admixtures. Pozzolans are a group of finely-ground natural materials that can be added to concrete to increase its strength. Superplasticizers are added to concrete to reduce the amount of water needed while still maintaining its workability.

Cement admixtures can also be used to reduce the amount of cement in a mix, while still achieving the desired strength. This reduces the cost of the concrete and can be beneficial in some applications.

Finally, cement admixtures can be used to reduce the amount of dust created during concrete production. This can be beneficial for both workers and the environment.

Admixtures are an important component of concrete production, and their use is an accepted practice in the construction industry. They can be used to reduce cost, increase strength and workability, and reduce dust. With proper use, cement admixtures can greatly improve the quality and performance of concrete.