Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel polycarboxylate water reducer, preparation method and application thereof
The invention discloses a novel polycarboxylate water reducer which is prepared from following raw materials, by weight: 48 parts of a polyalkoxylvinyl long-chain unsaturated monomer, 2.88-10.08 parts of an unsaturated carboxylic acid, 0.2-2 parts of a chain transfer agent, 0.2-3 parts of an oxidizing agent, 0.1-1 part of a reducing agent, 154 parts of water and 0.08-0.24 parts of a micro-crosslinking agent. The polycarboxylate water reducer has high initial mortar fluidity and can hold a stable mortar fluidity for a long time, can effectively reduce time loss of slump degree and solves a problem of too fast loss of slump degree of usage of the concrete, and brings a great convenience to engineering construction in the fields of highway, bridge, dam, tunnels and high-rice buildings and the like. Meanwhile, the polycarboxylate water reducer is less in process, is simple in preparation step, is high in efficiency, is low in cost, is green and environment-friendly and is very suitable for industrial application.
Novel polycarboxylate water reducer, preparation method and application thereof
The invention discloses a novel polycarboxylate water reducer which is prepared from following raw materials, by weight: 48 parts of a polyalkoxylvinyl long-chain unsaturated monomer, 2.88-10.08 parts of an unsaturated carboxylic acid, 0.2-2 parts of a chain transfer agent, 0.2-3 parts of an oxidizing agent, 0.1-1 part of a reducing agent, 154 parts of water and 0.08-0.24 parts of a micro-crosslinking agent. The polycarboxylate water reducer has high initial mortar fluidity and can hold a stable mortar fluidity for a long time, can effectively reduce time loss of slump degree and solves a problem of too fast loss of slump degree of usage of the concrete, and brings a great convenience to engineering construction in the fields of highway, bridge, dam, tunnels and high-rice buildings and the like. Meanwhile, the polycarboxylate water reducer is less in process, is simple in preparation step, is high in efficiency, is low in cost, is green and environment-friendly and is very suitable for industrial application.
Novel polycarboxylate water reducer, preparation method and application thereof
ZOU HUAWEI (Autor:in) / LIANG MEI (Autor:in) / REN QINYU (Autor:in)
13.01.2016
Patent
Elektronische Ressource
Englisch
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