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Water reducing agent, preparation method thereof and concrete using water reducing agent
The invention relates to the technical field of additives for concrete, and particularly discloses a water reducing agent, a preparation method of the water reducing agent and concrete using the water reducing agent. The water reducing agent is prepared from 10 to 20 parts of acrylic acid, 34 to 38 parts of modified trimethylolpropane tripolypropylene glycol ether, 3 to 9 parts of potassium persulfate, 16 to 20 parts of sodium hydroxide and 23 to 27 parts of water; the preparation method comprises the following steps: S1, uniformly mixing acrylic acid, potassium persulfate and modified trimethylolpropane tripolypropylene glycol ether to form a mixed solution; s2, dropwise adding the mixed solution into water at 80-90 DEG C, uniformly mixing, and keeping the constant temperature for 3-5 hours to prepare a polymer solution; S3, cooling to room temperature, adding an alkaline solution into the polymer solution, and neutralizing to weak acidity to prepare the polycarboxylate superplasticizer. The water reducing agent can be used for preparing concrete, and has the advantage of reducing the adverse effect of the viscosity of the water reducing agent on the flowability of the concrete.
本申请涉及混凝土用添加剂的技术领域，具体公开了一种减水剂及其制备方法及使用该减水剂的混凝土。减水剂包括丙烯酸10‑20份、改性三羟甲丙烷三聚丙二醇醚34‑38份、过硫酸钾3‑9份、氢氧化钠16‑20份、水23‑27份；其制备方法为：S1、将丙烯酸、过硫酸钾和改性三羟甲丙烷三聚丙二醇醚混合均匀，形成混合液；S2、在80‑90℃下将混合液滴加至水中并混合均匀，恒温3‑5h，制得聚合液：S3、冷却至室温，并向聚合液中加入碱性溶液并中和至弱酸性，制得聚羧酸减水剂。本申请的减水剂可用于制备混凝土，其具有减少减水剂粘度对混凝土流动性的不利影响的优点。
Water reducing agent, preparation method thereof and concrete using water reducing agent
The invention relates to the technical field of additives for concrete, and particularly discloses a water reducing agent, a preparation method of the water reducing agent and concrete using the water reducing agent. The water reducing agent is prepared from 10 to 20 parts of acrylic acid, 34 to 38 parts of modified trimethylolpropane tripolypropylene glycol ether, 3 to 9 parts of potassium persulfate, 16 to 20 parts of sodium hydroxide and 23 to 27 parts of water; the preparation method comprises the following steps: S1, uniformly mixing acrylic acid, potassium persulfate and modified trimethylolpropane tripolypropylene glycol ether to form a mixed solution; s2, dropwise adding the mixed solution into water at 80-90 DEG C, uniformly mixing, and keeping the constant temperature for 3-5 hours to prepare a polymer solution; S3, cooling to room temperature, adding an alkaline solution into the polymer solution, and neutralizing to weak acidity to prepare the polycarboxylate superplasticizer. The water reducing agent can be used for preparing concrete, and has the advantage of reducing the adverse effect of the viscosity of the water reducing agent on the flowability of the concrete.
本申请涉及混凝土用添加剂的技术领域，具体公开了一种减水剂及其制备方法及使用该减水剂的混凝土。减水剂包括丙烯酸10‑20份、改性三羟甲丙烷三聚丙二醇醚34‑38份、过硫酸钾3‑9份、氢氧化钠16‑20份、水23‑27份；其制备方法为：S1、将丙烯酸、过硫酸钾和改性三羟甲丙烷三聚丙二醇醚混合均匀，形成混合液；S2、在80‑90℃下将混合液滴加至水中并混合均匀，恒温3‑5h，制得聚合液：S3、冷却至室温，并向聚合液中加入碱性溶液并中和至弱酸性，制得聚羧酸减水剂。本申请的减水剂可用于制备混凝土，其具有减少减水剂粘度对混凝土流动性的不利影响的优点。
Water reducing agent, preparation method thereof and concrete using water reducing agent
一种减水剂及其制备方法及使用该减水剂的混凝土
QIN HUAIXIA (author) / SONG XIAOXIAN (author) / KONG LINGQIANG (author) / WANG XIAOYING (author) / ZHANG YUTAO (author)
2023-12-05
Patent
Electronic Resource
Chinese
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