Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Synthetic technology of slump-retaining polycarboxylic type water reducer
The invention discloses a synthetic technology of a slump-retaining polycarboxylic type water reducer. Specifically, beta-carboxyethyl acrylic ester with the high water-reducing function and slump-retaining function and 3-allyloxy-2-hydroxy sodium propanesulfonic acid with the high water-reducing function are introduced in the synthetic process, and diethylene glycol monoacrylate and other monomers with special functions are introduced into the slump-retaining component. According to the synthetic technology, an oxidation-reduction initiating system molecular weight regulator is adopted in the water phase, and therefore the monomers with the slump-retaining function and the water-reducing function are synthesized in a one-pot subsection relay dropwise addition synthetic mode. Concrete tests prove that the synthetic product has the water reducing performance and slump retaining performance, the workability of fresh concrete is greatly improved, and the sensitivity of the water reducer for the water amount is lowered.
Synthetic technology of slump-retaining polycarboxylic type water reducer
The invention discloses a synthetic technology of a slump-retaining polycarboxylic type water reducer. Specifically, beta-carboxyethyl acrylic ester with the high water-reducing function and slump-retaining function and 3-allyloxy-2-hydroxy sodium propanesulfonic acid with the high water-reducing function are introduced in the synthetic process, and diethylene glycol monoacrylate and other monomers with special functions are introduced into the slump-retaining component. According to the synthetic technology, an oxidation-reduction initiating system molecular weight regulator is adopted in the water phase, and therefore the monomers with the slump-retaining function and the water-reducing function are synthesized in a one-pot subsection relay dropwise addition synthetic mode. Concrete tests prove that the synthetic product has the water reducing performance and slump retaining performance, the workability of fresh concrete is greatly improved, and the sensitivity of the water reducer for the water amount is lowered.
Synthetic technology of slump-retaining polycarboxylic type water reducer
MA GUODONG (Autor:in) / XIE HONG (Autor:in) / JIN TONGSHOU (Autor:in) / WANG WENBIN (Autor:in) / LUO ZHICHAO (Autor:in) / CHEN ZHANHU (Autor:in) / LI XIXI (Autor:in) / LI HONGSHUANG (Autor:in)
30.12.2015
Patent
Elektronische Ressource
Englisch
Preparation method of slump-retaining polycarboxylic acid type water-reducer
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2022