Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance concrete synergist and preparation method thereof
The invention relates to a high-performance concrete synergist and a preparation method thereof, and belongs to the technical field of building concrete admixtures. The preparation method of the high-performance concrete synergist comprises the following steps: carrying out aqueous solution free radical polymerization reaction at room temperature, and copolymerizing methyl allyl polyoxyethylene ether, modified triethanolamine, (methyl) acrylic acid, sodium hypophosphite, hydrogen peroxide, ascorbic acid and the like according to a certain ratio to prepare the high-performance concrete synergist. The high-performance concrete synergist has the advantages of being low in cost, small in mixing amount, good in cement adaptability, stable in reaction, easy to control, simple in process and the like, meanwhile the high-performance concrete synergist is high in water reducing rate and good in slump loss resistance, and can reduce the cement consumption by about 10% under the condition that the same concrete strength grade is guaranteed.
本发明涉及一种高性能混凝土增效剂及其制备方法，属于建筑混凝土外加剂技术领域。所述高性能混凝土增效剂的制备是利用水溶液自由基聚合反应在室温下进行，利用甲基烯丙基聚氧乙烯醚、改性三乙醇胺、（甲基）丙烯酸、次磷酸钠、双氧水、抗坏血酸等按一定的比例共聚制备一种高性能混凝土增效剂。本发明高性能混凝土增效剂具有成本低、掺量小、与水泥适应性好、反应稳定易于控制、工艺简单等优点，同时其减水率高、保坍性好，在保证相同混凝土强度等级下，能减少10%左右的水泥用量。
High-performance concrete synergist and preparation method thereof
The invention relates to a high-performance concrete synergist and a preparation method thereof, and belongs to the technical field of building concrete admixtures. The preparation method of the high-performance concrete synergist comprises the following steps: carrying out aqueous solution free radical polymerization reaction at room temperature, and copolymerizing methyl allyl polyoxyethylene ether, modified triethanolamine, (methyl) acrylic acid, sodium hypophosphite, hydrogen peroxide, ascorbic acid and the like according to a certain ratio to prepare the high-performance concrete synergist. The high-performance concrete synergist has the advantages of being low in cost, small in mixing amount, good in cement adaptability, stable in reaction, easy to control, simple in process and the like, meanwhile the high-performance concrete synergist is high in water reducing rate and good in slump loss resistance, and can reduce the cement consumption by about 10% under the condition that the same concrete strength grade is guaranteed.
本发明涉及一种高性能混凝土增效剂及其制备方法，属于建筑混凝土外加剂技术领域。所述高性能混凝土增效剂的制备是利用水溶液自由基聚合反应在室温下进行，利用甲基烯丙基聚氧乙烯醚、改性三乙醇胺、（甲基）丙烯酸、次磷酸钠、双氧水、抗坏血酸等按一定的比例共聚制备一种高性能混凝土增效剂。本发明高性能混凝土增效剂具有成本低、掺量小、与水泥适应性好、反应稳定易于控制、工艺简单等优点，同时其减水率高、保坍性好，在保证相同混凝土强度等级下，能减少10%左右的水泥用量。
High-performance concrete synergist and preparation method thereof
一种高性能混凝土增效剂及其制备方法
QI JIMIN (Autor:in) / WANG XIANGGUO (Autor:in) / WANG LILI (Autor:in)
30.04.2021
Patent
Elektronische Ressource
Chinesisch
High-dispersity concrete synergist and preparation method thereof
| Europäisches Patentamt | 2021