A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycled aggregate concrete admixture
A recycled aggregate concrete admixture is prepared by mixing a water reducing agent A for recycled aggregate concrete, a water reducing agent B for recycled aggregate concrete, a retarder, a viscosity regulator, a defoaming agent, an air entraining agent and water. The water reducing agent for recycled aggregate concrete comprises the following components in percentage by mass: 15 to 30 percent of water reducing agent A for recycled aggregate concrete, 10 to 30 percent of water reducing agent B for recycled aggregate concrete, 1 to 5 percent of retarder, 0 to 1 percent of viscosity modifier,0 to 0.05 percent of defoaming agent, 0 to 0.4 percent of air entraining agent and 33.55 to 74 percent of water. The invention also provides a preparation method of the water reducing agent A for recycled aggregate concrete and the water reducing agent B for recycled aggregate concrete. The recycled aggregate concrete admixture can significantly improve the working performance of recycled aggregate concrete, reduces the slump loss of concrete, has the composite effects of water reduction, slump retaining and the like, and is simple in preparation process, low in production cost and suitable for industrial production.
一种再生骨料混凝土外加剂，它是由再生骨料混凝土用减水剂A、再生骨料混凝土用减水剂B、缓凝剂、粘度调节剂、消泡剂、引气剂和水混合制成，各组分所占的质量百分比为：所述再生骨料混凝土用减水剂A 15％～30％，所述再生骨料混凝土用减水剂B 10％～30％，缓凝剂1％～5％，粘度调节剂0～1％，消泡剂0～0.05％，引气剂0～0.4％、水33.55～74％。本发明还提供了所述再生骨料混凝土用减水剂A、再生骨料混凝土用减水剂B的制备方法。本发明的再生骨料混凝土外加剂能显著改善再生骨料混凝土的工作性能，减少了混凝土坍落度损失，具有减水保坍等复合效果，并且制备工艺简单，生产成本较低，适合工业化生产。
Recycled aggregate concrete admixture
A recycled aggregate concrete admixture is prepared by mixing a water reducing agent A for recycled aggregate concrete, a water reducing agent B for recycled aggregate concrete, a retarder, a viscosity regulator, a defoaming agent, an air entraining agent and water. The water reducing agent for recycled aggregate concrete comprises the following components in percentage by mass: 15 to 30 percent of water reducing agent A for recycled aggregate concrete, 10 to 30 percent of water reducing agent B for recycled aggregate concrete, 1 to 5 percent of retarder, 0 to 1 percent of viscosity modifier,0 to 0.05 percent of defoaming agent, 0 to 0.4 percent of air entraining agent and 33.55 to 74 percent of water. The invention also provides a preparation method of the water reducing agent A for recycled aggregate concrete and the water reducing agent B for recycled aggregate concrete. The recycled aggregate concrete admixture can significantly improve the working performance of recycled aggregate concrete, reduces the slump loss of concrete, has the composite effects of water reduction, slump retaining and the like, and is simple in preparation process, low in production cost and suitable for industrial production.
一种再生骨料混凝土外加剂，它是由再生骨料混凝土用减水剂A、再生骨料混凝土用减水剂B、缓凝剂、粘度调节剂、消泡剂、引气剂和水混合制成，各组分所占的质量百分比为：所述再生骨料混凝土用减水剂A 15％～30％，所述再生骨料混凝土用减水剂B 10％～30％，缓凝剂1％～5％，粘度调节剂0～1％，消泡剂0～0.05％，引气剂0～0.4％、水33.55～74％。本发明还提供了所述再生骨料混凝土用减水剂A、再生骨料混凝土用减水剂B的制备方法。本发明的再生骨料混凝土外加剂能显著改善再生骨料混凝土的工作性能，减少了混凝土坍落度损失，具有减水保坍等复合效果，并且制备工艺简单，生产成本较低，适合工业化生产。
Recycled aggregate concrete admixture
一种再生骨料混凝土外加剂
LIU LEI (author) / WANG YUQIAN (author) / LIU XUFEI (author) / LIU SONGGUANG (author) / GUO CONGSHUAI (author) / WANG JINCHUN (author) / LIU CUIFEN (author)
2020-12-08
Patent
Electronic Resource
Chinese
European Patent Office | 2023
| European Patent Office | 2022