Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Slump-retaining concrete anti-freezing water reducing agent and preparation method thereof
The invention discloses a slump-retaining concrete anti-freezing water reducing agent and a preparation method thereof, and relates to the technical field of slump retaining and freezing prevention. The slump-retaining concrete anti-freezing water reducing agent is prepared from water and the following components in parts by weight: 8 to 12 parts of slump-retaining water reducing agent, 8 to 16 parts of water-soluble organic compound, 2 to 5 parts of strong electrolyte inorganic salt, 0.02 to 0.08 part of air entraining agent and 1 to 5 parts of conditioning agent. The preparation method of the slump-retaining concrete anti-freezing water reducing agent comprises the following steps: adding water into a 1000mL four-neck flask, sequentially adding sodium nitrite, calcium chloride, ethylene glycol, triethanolamine, the slump-retaining concrete anti-freezing water reducing agent, the air entraining agent and the regulator, and uniformly stirring to obtain the slump-retaining concrete anti-freezing water reducing agent. The slump-retaining concrete anti-freezing water reducing agent prepared by the method can improve the initial water reducing rate and slump-retaining performance of concrete, also can improve the early strength and anti-freezing effect of concrete, is economical and environment-friendly, and does not cause environmental pollution.
本发明公开了一种保坍型混凝土防冻减水剂及其制备方法，涉及保坍、防冻技术领域。一种保坍型混凝土防冻减水剂，包括水和如下重量份计的各组分：保坍型减水剂8～12份，水溶性有机化合物为8～16份，强电解质无机盐为2～5份，引气剂0.02～0.08份，调节剂1～5份。本发明保坍型混凝土防冻减水剂的制备方法：将水加入1000mL四口烧瓶中，依次加入亚硝酸钠、氯化钙、乙二醇、三乙醇胺、保坍型减水剂、引气剂和调节剂，搅拌均匀，即得保坍型混凝土防冻减水剂。采用本发明方法制备的保坍型混凝土防冻减水剂可提高混凝土的初始减水率和保坍性能，还可提高混凝土的早期强度和防冻效果，同时节约环保，不会造成环境污染。
Slump-retaining concrete anti-freezing water reducing agent and preparation method thereof
The invention discloses a slump-retaining concrete anti-freezing water reducing agent and a preparation method thereof, and relates to the technical field of slump retaining and freezing prevention. The slump-retaining concrete anti-freezing water reducing agent is prepared from water and the following components in parts by weight: 8 to 12 parts of slump-retaining water reducing agent, 8 to 16 parts of water-soluble organic compound, 2 to 5 parts of strong electrolyte inorganic salt, 0.02 to 0.08 part of air entraining agent and 1 to 5 parts of conditioning agent. The preparation method of the slump-retaining concrete anti-freezing water reducing agent comprises the following steps: adding water into a 1000mL four-neck flask, sequentially adding sodium nitrite, calcium chloride, ethylene glycol, triethanolamine, the slump-retaining concrete anti-freezing water reducing agent, the air entraining agent and the regulator, and uniformly stirring to obtain the slump-retaining concrete anti-freezing water reducing agent. The slump-retaining concrete anti-freezing water reducing agent prepared by the method can improve the initial water reducing rate and slump-retaining performance of concrete, also can improve the early strength and anti-freezing effect of concrete, is economical and environment-friendly, and does not cause environmental pollution.
本发明公开了一种保坍型混凝土防冻减水剂及其制备方法，涉及保坍、防冻技术领域。一种保坍型混凝土防冻减水剂，包括水和如下重量份计的各组分：保坍型减水剂8～12份，水溶性有机化合物为8～16份，强电解质无机盐为2～5份，引气剂0.02～0.08份，调节剂1～5份。本发明保坍型混凝土防冻减水剂的制备方法：将水加入1000mL四口烧瓶中，依次加入亚硝酸钠、氯化钙、乙二醇、三乙醇胺、保坍型减水剂、引气剂和调节剂，搅拌均匀，即得保坍型混凝土防冻减水剂。采用本发明方法制备的保坍型混凝土防冻减水剂可提高混凝土的初始减水率和保坍性能，还可提高混凝土的早期强度和防冻效果，同时节约环保，不会造成环境污染。
Slump-retaining concrete anti-freezing water reducing agent and preparation method thereof
一种保坍型混凝土防冻减水剂及其制备方法
LIU RUNXIA (Autor:in) / DU JIANG (Autor:in) / ZENG CHI (Autor:in) / LIU YUAN (Autor:in) / TAO JIA (Autor:in) / HE CHUNXIA (Autor:in)
22.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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