Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and preparation method thereof
The invention discloses a mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and a preparation method thereof. The water reducer comprises isopentenyl polyoxyethylene ether, an initiator, a solution A and a solution B, wherein the solution A comprises acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, sodium methylacrylsulfonate, 2-acrylamido-2-methylpropanesulfonic acid, vinyl acetate, vinyltriethoxysilane and water; and the solution comprises a chain transferring agent, a reducing agent and water. The high-performance polycarboxylic acid water reducer is obtained through scientific proportioning and multi-time test. The water reducer has high water reducing rate and good slump loss resistance, solves the problem of adaptability of polycarboxylic acid water reducers to concrete raw materials, and can realize a good slump loss resistance effect and reduce the slump loss of concrete when the water reducer is especially applied in case of concrete raw materials with large mud content; and the preparation method of the water reducer has the advantages of simple operation, convenient preparation, low cost, and suitableness for industrial large-scale production.
Mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and preparation method thereof
The invention discloses a mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and a preparation method thereof. The water reducer comprises isopentenyl polyoxyethylene ether, an initiator, a solution A and a solution B, wherein the solution A comprises acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, sodium methylacrylsulfonate, 2-acrylamido-2-methylpropanesulfonic acid, vinyl acetate, vinyltriethoxysilane and water; and the solution comprises a chain transferring agent, a reducing agent and water. The high-performance polycarboxylic acid water reducer is obtained through scientific proportioning and multi-time test. The water reducer has high water reducing rate and good slump loss resistance, solves the problem of adaptability of polycarboxylic acid water reducers to concrete raw materials, and can realize a good slump loss resistance effect and reduce the slump loss of concrete when the water reducer is especially applied in case of concrete raw materials with large mud content; and the preparation method of the water reducer has the advantages of simple operation, convenient preparation, low cost, and suitableness for industrial large-scale production.
Mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and preparation method thereof
REN HAO (Autor:in) / JIA WEILONG (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
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