A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a high-performance concrete compound water reducing agent and a preparation method thereof, and belongs to the technical field of concrete water reducing agents. The invention relates to a preparation method of a high-performance concrete compound water reducing agent. The preparation method comprises the following steps: 1) adding EPEG-3000 and deionized water into a reaction kettle, and stirring to obtain a base solution; 2) adding an initiator into the base solution, uniformly mixing, and dropwise adding a functional aqueous solution while stirring to obtain a solution A; wherein the functional aqueous solution is formed by mixing terminated amide phosphate and deionized water; and 3) simultaneously dropwise adding the mixed solution, carrying out a heat preservation reaction on the mixed solution, and adjusting the pH value after the reaction is completed to obtain the concrete compound water reducing agent. Wherein the mixed solution is composed of mercaptoacetic acid, ascorbic acid, a catalyst and deionized water. The prepared water reducing agent does not generate pollution in the production process, conforms to the low-carbon and environment-friendly concept, and is higher in water reducing rate, good in mud resistance and good in adaptability to concrete.
本发明涉及一种高性能的混凝土复配减水剂及其制备方法，属于混凝土减水剂的技术领域。一种高性能的混凝土复配减水剂的制备方法包括以下步骤：1)向反应釜加入EPEG‑3000和去离子水搅拌后，得到底液；2)向底液加入引发剂混合均匀后，在搅拌情况下，滴加功能水溶液，滴加完成后得到A液；其中，所述功能水溶液由封端酰胺磷酸酯和去离子水混合而成；3)同时滴加混合液、混合溶液进行保温反应，反应完成后调节pH值，得到混凝土复配减水剂；其中，所述混合溶液由巯基乙酸、抗坏血酸、催化剂和去离子水组成。本发明制得的减水剂，在生产过程不会产生污染，符合低碳环保理念，并且该产品的减水率更高，其抗泥性好和对混凝土适应性好。
The invention relates to a high-performance concrete compound water reducing agent and a preparation method thereof, and belongs to the technical field of concrete water reducing agents. The invention relates to a preparation method of a high-performance concrete compound water reducing agent. The preparation method comprises the following steps: 1) adding EPEG-3000 and deionized water into a reaction kettle, and stirring to obtain a base solution; 2) adding an initiator into the base solution, uniformly mixing, and dropwise adding a functional aqueous solution while stirring to obtain a solution A; wherein the functional aqueous solution is formed by mixing terminated amide phosphate and deionized water; and 3) simultaneously dropwise adding the mixed solution, carrying out a heat preservation reaction on the mixed solution, and adjusting the pH value after the reaction is completed to obtain the concrete compound water reducing agent. Wherein the mixed solution is composed of mercaptoacetic acid, ascorbic acid, a catalyst and deionized water. The prepared water reducing agent does not generate pollution in the production process, conforms to the low-carbon and environment-friendly concept, and is higher in water reducing rate, good in mud resistance and good in adaptability to concrete.
本发明涉及一种高性能的混凝土复配减水剂及其制备方法，属于混凝土减水剂的技术领域。一种高性能的混凝土复配减水剂的制备方法包括以下步骤：1)向反应釜加入EPEG‑3000和去离子水搅拌后，得到底液；2)向底液加入引发剂混合均匀后，在搅拌情况下，滴加功能水溶液，滴加完成后得到A液；其中，所述功能水溶液由封端酰胺磷酸酯和去离子水混合而成；3)同时滴加混合液、混合溶液进行保温反应，反应完成后调节pH值，得到混凝土复配减水剂；其中，所述混合溶液由巯基乙酸、抗坏血酸、催化剂和去离子水组成。本发明制得的减水剂，在生产过程不会产生污染，符合低碳环保理念，并且该产品的减水率更高，其抗泥性好和对混凝土适应性好。
High-performance concrete compound water reducing agent and preparation method thereof
一种高性能的混凝土复配减水剂及其制备方法
HU JIE (author)
2023-10-27
Patent
Electronic Resource
Chinese
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