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A platform for research: civil engineering, architecture and urbanism
Polycarboxylate superplasticizer for stone powder concrete and preparation method thereof
The invention belongs to the technical field of concrete, and particularly relates to a polycarboxylic acid water reducer for stone powder concrete and a preparation method of the polycarboxylic acid water reducer. According to the polycarboxylate superplasticizer for the stone powder concrete, in the preparation process, the monomer A and the monomer B are subjected to a copolymerization reaction to form a copolymer, then the monomer C reacts with carboxyl in the copolymer to form a stable cross-linking system, and a performance test result shows that the addition of the monomer C is uniform, so that the performance of the polycarboxylate superplasticizer is improved. The formed cross-linking system well inhibits the slump loss of the stone powder concrete and improves the construction performance of the concrete; the preparation method is simple and low in production cost.
本发明属于混凝土技术领域，具体涉及一种用于石粉混凝土的聚羧酸减水剂及其制备方法。本发明提供的用于石粉混凝土的聚羧酸减水剂，在制备过程中，单体A与单体B先发生共聚反应形成共聚物，单体C再与该共聚物中的羧基反应形成稳定的交联体系，性能测试结果显示，单体C的加入，形成的交联体系很好地抑制了石粉混凝土的坍落度损失，改善了混凝土的施工性能；本发明的制备方法简单，生产成本低。
Polycarboxylate superplasticizer for stone powder concrete and preparation method thereof
The invention belongs to the technical field of concrete, and particularly relates to a polycarboxylic acid water reducer for stone powder concrete and a preparation method of the polycarboxylic acid water reducer. According to the polycarboxylate superplasticizer for the stone powder concrete, in the preparation process, the monomer A and the monomer B are subjected to a copolymerization reaction to form a copolymer, then the monomer C reacts with carboxyl in the copolymer to form a stable cross-linking system, and a performance test result shows that the addition of the monomer C is uniform, so that the performance of the polycarboxylate superplasticizer is improved. The formed cross-linking system well inhibits the slump loss of the stone powder concrete and improves the construction performance of the concrete; the preparation method is simple and low in production cost.
本发明属于混凝土技术领域，具体涉及一种用于石粉混凝土的聚羧酸减水剂及其制备方法。本发明提供的用于石粉混凝土的聚羧酸减水剂，在制备过程中，单体A与单体B先发生共聚反应形成共聚物，单体C再与该共聚物中的羧基反应形成稳定的交联体系，性能测试结果显示，单体C的加入，形成的交联体系很好地抑制了石粉混凝土的坍落度损失，改善了混凝土的施工性能；本发明的制备方法简单，生产成本低。
Polycarboxylate superplasticizer for stone powder concrete and preparation method thereof
一种用于石粉混凝土的聚羧酸减水剂及其制备方法
LU DEHUA (author) / YANG LIXIANG (author) / WANG XING (author) / ZHANG XIN (author) / ZHOU JINGSHAN (author) / DU ZENGQIANG (author) / FAN JUNJIANG (author) / HAN YUNTING (author) / XU XIAO (author)
2023-11-10
Patent
Electronic Resource
Chinese
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