双组份外加剂对混凝土性能的影响研究  

Study on the Influence of Two-component Admixtures on the Properties of Commercial Concrete

作　　者：方小利 王安书 邓林 拜胜伟 

机构地区：[1]云南众恒集团云南恒达混凝土有限公司,昆明650032 [2]江苏苏博特新材料股份有限公司,南京211100

出　　处：《混凝土世界》2022年第3期69-72,共4页China Concrete

摘　　要：针对单一固定组分外加剂难以满足商品混凝土生产过程中原材料变化引起的适应性问题,依据昆明商混站的实际情况,按照2种不同功效的产品A料和B料复合应用的试验方案(A料的功效主要为减水、保坍、引气等,B料的功效主要为高分散、阻泥、增稠、引气等),通过在含泥量不同的3种机制砂生产混凝土时,调整 B料的掺量,研究了双组份外加剂复合应用对商品混凝土性能的影响规律。结果表明:双组分外加剂复合应用可有效解决混凝土拌合性能的稳定性,更好地满足施工操作要求,同时还能节约成本。It is difficult for a single fixed component admixture to meet the adaptability problem caused by the change of raw materials in the production process of commercial concrete.According to the actual situation of the Kunming commercial mixing station,according to the test plan of the composite application of two products with different functions,A material and B material,when producing concrete with three kinds of machine-made sand with different mud content,adjust the mixing ratio of B material,and study the effect of the compound application of two-component admixtures on the properties of commercial concrete is discussed the results show that the mixing performance of concrete has been improved significantly,the exit and workability of concrete can be well stabilized,and the application requirements can be better met.

关 键 词：外加剂 复配使用 含泥量 扩展度 抗压强度 

分 类 号：TU528[建筑科学—建筑技术科学]