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A platform for research: civil engineering, architecture and urbanism
Slump retaining agent and preparation method thereof
The invention relates to a slump retaining agent which comprises a structural unit A derived from 4-hydroxybutyl vinyl polyoxyethylene ether and a structural unit B derived from an unsaturated carboxylic acid monomer, and the number ratio of the structural unit A to the structural unit B is (0.2- 0.6): 1. According to the aluminate cement slump retaining agent, the slump of concrete prepared fromquick-hardening sulphoaluminate cement can be kept for 1-1.5 hours, pumping of a concrete pump truck can be achieved, and large-volume concrete can be poured mechanically.
本发明涉及一种保坍剂，所述保坍剂包括衍生自4‑羟丁基乙烯基聚氧乙烯醚的结构单元A和衍生自不饱和羧酸单体的结构单元B，所述结构单元A和B的数量比为(0.2‑0.6):1。所述铝酸盐水泥保坍剂可实现快硬硫铝酸盐水泥配置的混凝土坍落度保持1‑1.5小时，可实现混凝土泵车进行泵送，机械化浇灌大体积混凝土。
Slump retaining agent and preparation method thereof
The invention relates to a slump retaining agent which comprises a structural unit A derived from 4-hydroxybutyl vinyl polyoxyethylene ether and a structural unit B derived from an unsaturated carboxylic acid monomer, and the number ratio of the structural unit A to the structural unit B is (0.2- 0.6): 1. According to the aluminate cement slump retaining agent, the slump of concrete prepared fromquick-hardening sulphoaluminate cement can be kept for 1-1.5 hours, pumping of a concrete pump truck can be achieved, and large-volume concrete can be poured mechanically.
本发明涉及一种保坍剂，所述保坍剂包括衍生自4‑羟丁基乙烯基聚氧乙烯醚的结构单元A和衍生自不饱和羧酸单体的结构单元B，所述结构单元A和B的数量比为(0.2‑0.6):1。所述铝酸盐水泥保坍剂可实现快硬硫铝酸盐水泥配置的混凝土坍落度保持1‑1.5小时，可实现混凝土泵车进行泵送，机械化浇灌大体积混凝土。
Slump retaining agent and preparation method thereof
一种保坍剂及其制备方法
BIAN YANWEI (author) / WANG YINGWEI (author) / WANG HONGWEI (author)
2020-11-10
Patent
Electronic Resource
Chinese
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