Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Slow-release water reducing agent with early strength function and preparation method of water reducing agent
The invention relates to a slow-release water reducing agent with an early strength function and a preparation method of the water reducing agent. The water reducing agent is prepared from the following components in parts by weight: 30-40 parts of TPEG, 1-3 parts of fumaric acid, 1-3 parts of methyl methacrylate, 3-5 parts of hydroxyethyl acrylate, 0.2-0.4 part of a composite oxidant, 0.05-0.1 part of a composite reducing agent, 0.1-0.3 part of a chain transfer agent, 1-4 parts of an alcohol amine compound, 50-60 parts of deionized water and 5-10 parts of liquid caustic soda. TPEG is mixed with deionized water; hydroxyethyl acrylate and deionized water are mixed and placed in a dropwise adding device A; the composite reducing agent, chain transfer agent and deionized water are mixed uniformly, and then the mixture is put into a dropwise adding device B; and the temperature is raised to 47 DEG C, fumaric acid and methyl methacrylate are put into a reaction device and stirred, a composite oxidant is added and stirred, solutions in the A and B are added dropwise, the temperature is kept for 1 hour, cooling is carried out, liquid caustic soda is added and uniformly stirred, and an alcohol amine compound is added and stirred to obtain the water reducing agent product. The water reducing agent effectively improves the early strength of concrete and effectively relieves the slump loss speed of the concrete.
本发明涉及一种具有早强功能的缓释型减水剂及其制备方法，由以下重量份的组分制成：TPEG‑ 30‑40份、富马酸1‑3份、甲基丙烯酸甲酯1‑3份、丙烯酸羟乙酯3‑5份、复合氧化剂0.2‑0.4份、复合还原剂0.05‑0.1份、链转移剂0.1‑0.3份、醇胺类化合物1‑4份、去离子水50‑60份、液碱5‑10份。TPEG混合去离子水；丙烯酸羟乙酯、去离子水混合置于A滴加装置；将复合还原剂、链转移剂、去离子水混合均匀后置于B滴加装置；温度升到47℃，将富马酸、甲基丙烯酸甲酯投入反应装置，搅拌，加复合氧化剂，搅拌，滴加A、B中的溶液，滴加完，保温1小时，冷却，加入液碱，搅拌均匀后，加入醇胺类化合物，搅拌得到减水剂产品。该减水剂有效提高混凝土的早期强度，有效缓解混凝土坍落度损失速度。
Slow-release water reducing agent with early strength function and preparation method of water reducing agent
The invention relates to a slow-release water reducing agent with an early strength function and a preparation method of the water reducing agent. The water reducing agent is prepared from the following components in parts by weight: 30-40 parts of TPEG, 1-3 parts of fumaric acid, 1-3 parts of methyl methacrylate, 3-5 parts of hydroxyethyl acrylate, 0.2-0.4 part of a composite oxidant, 0.05-0.1 part of a composite reducing agent, 0.1-0.3 part of a chain transfer agent, 1-4 parts of an alcohol amine compound, 50-60 parts of deionized water and 5-10 parts of liquid caustic soda. TPEG is mixed with deionized water; hydroxyethyl acrylate and deionized water are mixed and placed in a dropwise adding device A; the composite reducing agent, chain transfer agent and deionized water are mixed uniformly, and then the mixture is put into a dropwise adding device B; and the temperature is raised to 47 DEG C, fumaric acid and methyl methacrylate are put into a reaction device and stirred, a composite oxidant is added and stirred, solutions in the A and B are added dropwise, the temperature is kept for 1 hour, cooling is carried out, liquid caustic soda is added and uniformly stirred, and an alcohol amine compound is added and stirred to obtain the water reducing agent product. The water reducing agent effectively improves the early strength of concrete and effectively relieves the slump loss speed of the concrete.
本发明涉及一种具有早强功能的缓释型减水剂及其制备方法，由以下重量份的组分制成：TPEG‑ 30‑40份、富马酸1‑3份、甲基丙烯酸甲酯1‑3份、丙烯酸羟乙酯3‑5份、复合氧化剂0.2‑0.4份、复合还原剂0.05‑0.1份、链转移剂0.1‑0.3份、醇胺类化合物1‑4份、去离子水50‑60份、液碱5‑10份。TPEG混合去离子水；丙烯酸羟乙酯、去离子水混合置于A滴加装置；将复合还原剂、链转移剂、去离子水混合均匀后置于B滴加装置；温度升到47℃，将富马酸、甲基丙烯酸甲酯投入反应装置，搅拌，加复合氧化剂，搅拌，滴加A、B中的溶液，滴加完，保温1小时，冷却，加入液碱，搅拌均匀后，加入醇胺类化合物，搅拌得到减水剂产品。该减水剂有效提高混凝土的早期强度，有效缓解混凝土坍落度损失速度。
Slow-release water reducing agent with early strength function and preparation method of water reducing agent
一种具有早强功能的缓释型减水剂及其制备方法
SUN MINGHAI (Autor:in) / YANG RUI (Autor:in) / WANG JING (Autor:in) / WANG LIPENG (Autor:in) / CHEN ZHEN (Autor:in)
02.04.2021
Patent
Elektronische Ressource
Chinesisch
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