A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Polycarboxylate superplasticizer for improving workability
The invention relates to the technical field of building admixtures, and discloses a polycarboxylate superplasticizer for improving workability, which is characterized by comprising the following raw materials in parts by weight: 80-120 parts of polyether macromonomer and 160-200 parts of deionized water, the adhesive is prepared from 8-12 parts of acrylic acid, 2-4 parts of sulfur small monomers, 1-4 parts of acrylamide, 1-3 parts of a chain transfer agent, 5-10 parts of an initiator, 0.5-2 parts of an air entraining agent, 1-4 parts of a retarder and 10-14 parts of caustic soda liquid. The invention provides the polycarboxylate superplasticizer for improving the peaceability, and the polycarboxylate superplasticizer can permeate gas in the mixing process of cement concrete or cement mortar to generate tiny and stable bubbles, so that the peaceability of a concrete mixture is improved, bleeding and concrete segregation are reduced, and the impermeability grade, cold resistance and adhesion resistance of concrete are improved; the water-reducing agent has the advantages that the water-retaining property of a mixed concrete mixture is obviously improved, and a certain amount of sodium gluconate is added, so that the plasticity and the structural strength of the water-reducing agent on the concrete mixture in the using process can be effectively enhanced.
本发明涉及建筑外加剂技术领域，且公开一种用于改善和易性的聚羧酸减水剂，其特征在于，包括以下重量份的原料：聚醚大单体80‑120份、去离子水160‑200份，丙烯酸8‑12份、硫磺类小单体2‑4份、丙烯酰胺1‑4份、链转移剂1‑3份、引发剂5‑10份、引气剂0.5‑2份、缓凝剂1‑4份和液碱10‑14份。本发明提供了一种用于改善和易性的聚羧酸减水剂，具备可在水泥混凝土或水泥砂浆拌和过程中渗入气体以产生微小且平稳的汽泡,从而改进混凝土拌和物的和易性,降低泌水和混凝土离析,提升混凝土的抗渗等级性、抗冷性和抗黏附性，使得混合后的混凝土拌合物保水溶性明显提升的优点，并通过添加一定量的葡萄糖酸钠，可有效增强减水剂在使用过程中对混凝土拌合物的可塑性及结构强度。
Polycarboxylate superplasticizer for improving workability
The invention relates to the technical field of building admixtures, and discloses a polycarboxylate superplasticizer for improving workability, which is characterized by comprising the following raw materials in parts by weight: 80-120 parts of polyether macromonomer and 160-200 parts of deionized water, the adhesive is prepared from 8-12 parts of acrylic acid, 2-4 parts of sulfur small monomers, 1-4 parts of acrylamide, 1-3 parts of a chain transfer agent, 5-10 parts of an initiator, 0.5-2 parts of an air entraining agent, 1-4 parts of a retarder and 10-14 parts of caustic soda liquid. The invention provides the polycarboxylate superplasticizer for improving the peaceability, and the polycarboxylate superplasticizer can permeate gas in the mixing process of cement concrete or cement mortar to generate tiny and stable bubbles, so that the peaceability of a concrete mixture is improved, bleeding and concrete segregation are reduced, and the impermeability grade, cold resistance and adhesion resistance of concrete are improved; the water-reducing agent has the advantages that the water-retaining property of a mixed concrete mixture is obviously improved, and a certain amount of sodium gluconate is added, so that the plasticity and the structural strength of the water-reducing agent on the concrete mixture in the using process can be effectively enhanced.
本发明涉及建筑外加剂技术领域，且公开一种用于改善和易性的聚羧酸减水剂，其特征在于，包括以下重量份的原料：聚醚大单体80‑120份、去离子水160‑200份，丙烯酸8‑12份、硫磺类小单体2‑4份、丙烯酰胺1‑4份、链转移剂1‑3份、引发剂5‑10份、引气剂0.5‑2份、缓凝剂1‑4份和液碱10‑14份。本发明提供了一种用于改善和易性的聚羧酸减水剂，具备可在水泥混凝土或水泥砂浆拌和过程中渗入气体以产生微小且平稳的汽泡,从而改进混凝土拌和物的和易性,降低泌水和混凝土离析,提升混凝土的抗渗等级性、抗冷性和抗黏附性，使得混合后的混凝土拌合物保水溶性明显提升的优点，并通过添加一定量的葡萄糖酸钠，可有效增强减水剂在使用过程中对混凝土拌合物的可塑性及结构强度。
Polycarboxylate superplasticizer for improving workability
一种用于改善和易性的聚羧酸减水剂
ZHU GUOBIN (author) / YANG QI (author) / YI LIANG (author)
2022-11-29
Patent
Electronic Resource
Chinese
High-workability slow-release polycarboxylate superplasticizer and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2022
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