A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Polycarboxylate superplasticizer for machine-made sand and preparation method of polycarboxylate superplasticizer
The invention discloses a polycarboxylate superplasticizer for machine-made sand and a preparation method of the polycarboxylate superplasticizer. The polycarboxylate superplasticizer comprises isopentenyl polyoxyethylene ether, an oxidizing agent, a first solvent, a first additive component, a second additive component and an additive solution, wherein the first additive component comprises acrylic acid, thiohydracrylic acid and a second solvent; the second additive component comprises a reducing agent and a third solvent; and the additive solution is a 30% sodium hydroxide aqueous solution. The problems that machine-made sand concrete is poor in workability, large in flowing time loss and prone to bleeding and segregation can be solved, the workability and constructability of the machine-made sand concrete are obviously improved, the water consumption is reduced, and the solidification quality of the machine-made sand concrete is improved.
本发明公开了一种机制砂用聚羧酸减水剂及其制备方法，包括异戊烯基聚氧乙烯醚、氧化剂、第一溶剂、第一添加组分、第二添加组分和添加液；所述第一添加组分包括丙烯酸、巯基丙酸和第二溶剂；所述第二添加组分包括还原剂和第三溶剂；所述添加液为30%的氢氧化钠水溶液。能够克服机制砂混凝土和易性差、流动经时损失大以及易泌水、离析的问题，明显提高机制砂混凝土的和易性和施工性，降低用水量，提高机制砂混凝土的凝固质量。
Polycarboxylate superplasticizer for machine-made sand and preparation method of polycarboxylate superplasticizer
The invention discloses a polycarboxylate superplasticizer for machine-made sand and a preparation method of the polycarboxylate superplasticizer. The polycarboxylate superplasticizer comprises isopentenyl polyoxyethylene ether, an oxidizing agent, a first solvent, a first additive component, a second additive component and an additive solution, wherein the first additive component comprises acrylic acid, thiohydracrylic acid and a second solvent; the second additive component comprises a reducing agent and a third solvent; and the additive solution is a 30% sodium hydroxide aqueous solution. The problems that machine-made sand concrete is poor in workability, large in flowing time loss and prone to bleeding and segregation can be solved, the workability and constructability of the machine-made sand concrete are obviously improved, the water consumption is reduced, and the solidification quality of the machine-made sand concrete is improved.
本发明公开了一种机制砂用聚羧酸减水剂及其制备方法，包括异戊烯基聚氧乙烯醚、氧化剂、第一溶剂、第一添加组分、第二添加组分和添加液；所述第一添加组分包括丙烯酸、巯基丙酸和第二溶剂；所述第二添加组分包括还原剂和第三溶剂；所述添加液为30%的氢氧化钠水溶液。能够克服机制砂混凝土和易性差、流动经时损失大以及易泌水、离析的问题，明显提高机制砂混凝土的和易性和施工性，降低用水量，提高机制砂混凝土的凝固质量。
Polycarboxylate superplasticizer for machine-made sand and preparation method of polycarboxylate superplasticizer
一种机制砂用聚羧酸减水剂及其制备方法
CAI WENLONG (author) / QIAN JIANNAN (author) / WANG XIAOBING (author)
2022-01-14
Patent
Electronic Resource
Chinese
| European Patent Office | 2020
| European Patent Office | 2023
| European Patent Office | 2022