What are the types of concrete admixtures?

Concrete admixture is a cutting-edge technology in concrete technology. It has many types and small dosage. It plays a key role in toughening concrete. Concrete admixtures often have What classification? Qingdao Dingchang New Materials explains for you:

Classified according to (GB8075-87), concrete admixtures can be divided into four categories according to their key functions

1. Water-reducing agents that improve the mixing properties of concrete: including various types of water-reducing agents, air-entraining agents and pumping agents.

2. Water-reducing agents that adjust the initial setting time of concrete and hardening properties: including retarder, retardant, accelerating agent, etc.

3. Water-reducing agents that improve the performance of concrete: including air-entraining agents, waterproof coatings, and rust inhibitors.

4. Improve other characteristics of concrete Water reducing agent: including air entraining agent, expansion agent, antifreeze agent, colorant, waterproof coating and pumping agent, etc.

According to the naming and definition of (GB8075-87) water-reducing agents, water-reducing agents can be divided into 16 names, and their respective definitions are given

1. General water-reducing agent: a water-reducing agent that can reduce the mixing water requirement under the same conditions as the concrete slump;

2. Slow down Coagulant: a water-reducing agent that accelerates the initial strength transformation of concrete;

3. Retarder: a water-reducing agent that increases the initial setting time of concrete;

4. Air-entraining agent: A water-reducing agent that can introduce a large number of jointly distributed, smooth and open fine bubbles in the concrete mixing process;

5. High-efficiency water-reducing agent: A water-reducing agent that can drastically reduce the water demand of the mixture under consistent conditions of concrete collapse;

6. Early-strength water-reducing agent: a water-reducing agent that has both early-strength and water-reducing effects;

7. Delay Condensing water-reducing agent: A water-reducing agent that has both retarding and water-reducing effects;

8. Air-entraining water-reducing agent: It has both air-entraining and water-reducing properties. Water reducing agent;

9. Waterproof coating: Water reducing agent that can reduce the water absorption of concrete under hydrostatic pressure;

‘s processing technology, quality management, application technology, and type selection are very important compared with other construction materials. Concrete admixtures are widely used. At this stage, water-reducing admixtures have been called concrete admixtures. The sixth constituent material of soil.

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