some problems in the application of polycarboxylate superplasticizerii
Compatibility of polycarboxylate superplasticizer with other admixtures.
Beijing Dongke United Technologies Co.,Ltd.
The best superplasticizer for concrete is polycarboxylate superplasticizer. Concrete admixtures refer to products that are added in the process of mixing concrete to improve the performance of concrete according to requirements. Polycarboxylate superplasticizer has the characteristics of low dosage, high water reduction rate, green environmental protection, etc., and has been widely used in various concrete projects in recent years.
The water-reducing agent mother liquor is the main component in the concrete admixture, and its addition can effectively reduce the concrete water-cement ratio, increase the fluidity of the concrete, and improve the workability of the concrete.
Before being used in concrete, the preparation of polycarboxylate water-reducing agent mainly goes through two processes: synthesis and compounding: the synthesis process is initiated by the addition of different types of macromonomers and small monomers acrylic acid at heating or normal temperature. The compounding process is to add water, retarder, air-entraining agent, defoamer, water-retaining agent and other components to the synthesized mother liquor to make it in Ready-mixed concrete has certain fluidity and workability.
The best superplasticizer for concrete is polycarboxylate superplasticizer.
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Compatibility of polycarboxylate superplasticizer with other admixtures.
Polycarboxylic acid high-efficiency water reducing agent is characterized by low dosage and high water reducing rate.
Polycarboxylic acid water reducing agent with high efficient water reducing performance is often used in construction concrete.
Polycarboxylate superplasticizer is a new generation of water-reducing agent based on modified polycarboxylic acid.
Polycarboxylate (PCE) superplasticizers are known as high range water-reducing admixtures in concretes, such as ready-mix concretes, self-compacting concretes (SCC), ultra-high strength concretes (UHPC) and at the same time give an extended slump retention.
The polycarboxylic acid-based high-performance water-reducing agent, has truly designed an effective molecular structure based on the mechanism of dispersed cement. It has a super-dispersed type and can prevent concrete slump loss.