Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent and preparation method thereof
The invention relates to a slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent and a preparation method of the slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent, and belongs to the technical field of concrete admixtures. The reducing agent is characterized in that a polycarboxylate-type water reducing agent is provided and the polycarboxylate-type water reducing agent comprises the following components in parts by weight: 300 parts of isoamyl alkenyl polyoxyethylene ether, 1.5-3 parts of initiating agents, 93-164 parts of liquid A, and 64-137 parts of liquid B, wherein the liquid A is prepared from acrylic acid, hydroxyethyl acrylate, hydroxy-propyl acrylate, 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and water; and the liquid B is prepared from a chain transfer agent and water. The water reducing agent is the slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent; the slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent is high in adaptability, and high in slump-retaining performance; moreover, the production process is a constant-temperature process, the heating is not needed so that the energy sources are saved; and compared with the prior art, the slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent has the advantages that the production period is greatly shortened, and the production efficiency is improved.
Slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent and preparation method thereof
The invention relates to a slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent and a preparation method of the slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent, and belongs to the technical field of concrete admixtures. The reducing agent is characterized in that a polycarboxylate-type water reducing agent is provided and the polycarboxylate-type water reducing agent comprises the following components in parts by weight: 300 parts of isoamyl alkenyl polyoxyethylene ether, 1.5-3 parts of initiating agents, 93-164 parts of liquid A, and 64-137 parts of liquid B, wherein the liquid A is prepared from acrylic acid, hydroxyethyl acrylate, hydroxy-propyl acrylate, 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and water; and the liquid B is prepared from a chain transfer agent and water. The water reducing agent is the slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent; the slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent is high in adaptability, and high in slump-retaining performance; moreover, the production process is a constant-temperature process, the heating is not needed so that the energy sources are saved; and compared with the prior art, the slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent has the advantages that the production period is greatly shortened, and the production efficiency is improved.
Slow-release slump-retaining type polycarboxylic acid high-performance water reducing agent and preparation method thereof
REN HAO (Autor:in) / WANG TAO (Autor:in) / YUAN HUILI (Autor:in) / HE ZESHENG (Autor:in) / XUE JIYING (Autor:in) / CHEN PENGMING (Autor:in) / WANG MIN (Autor:in)
10.06.2015
Patent
Elektronische Ressource
Englisch
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