What are the main functions of concrete admixtures?

What are the main functions of concrete admixtures?

We often see that during construction at the construction site, the concrete is not only added with water before leaving the mixing station, but also needs to be added during the mixing process. After adjusting the proportion of the additive, it is added to the concrete together with water for mixing. So what is the role of the concrete admixture? Qingdao Dingchang Company employees selected several commonly used admixtures to answer the question.

What are the functions of commonly used concrete admixtures?

Air-entraining agent: When you hear the word air-entraining agent, you will think that air-entraining agent contains gas. According to certain The dosage and proportion are compounded into the water-reducing agent. When mixed into the concrete, it plays a role of ball lubrication. The balls can hold up the concrete and adjust the workability of the concrete. However, it is not advisable to add too much because the air content will increase. The strength of the concrete will be affected to a certain extent.

Retarder: The word retarder means retardation. It can extend the hardening time of the cementitious material in concrete and reduce the early stage hydration heat of concrete, so it acts as a delay. Concerning the setting time of concrete, it is generally used more in summer.

Early strength agent can shorten the setting time of the cement component in concrete and achieve early strength growth.

Mud inhibitor: The current sand and gravel materials in concrete contain mud and are not clean, so a certain small amount of mud inhibitor is added to the concrete. The mud inhibitor independently developed by Qingdao Dingchang Company can effectively improve the concrete sand. Stones containing mud are a big problem.

Water reducing agent can reduce the water consumption of cement, improve its strength, and increase the fluidity of concrete.

There are many concrete admixtures, and I will not introduce them one by one here. Each type of admixture has different effects, so we need to use admixtures and the amount of admixtures according to the state of the concrete. The ultimate goal is to make the concrete perform better.

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