随着预拌混凝土被人们广泛的关注,其间的外加剂作为组成成分中最必不可少的一种,也引起了相关施工操作人员的高度注意。这种外加剂自身有很多独有的特性,比如说其自身减水效果好、保坍性能大,而且还可以有效地帮助混凝土拌合物提升自身的和易性以及试件力学性能等等。本文详细介绍了减水剂的概念以及其成分构成,与此同时,讲述了减水剂对预拌混凝土的具体操作方式及作用。 As ready-mixed concrete is widely watched, the admixture among them is the most indispensable one of the components, and also attracts the attention of relevant construction workers. This admixture itself has many unique features, such as its own water-reducing effect, Paul slump performance, but also can effectively help concrete mix to enhance their workability and mechanical properties of the specimen and so on. This paper introduces the concept of water reducer and its composition in detail, at the same time, tells the concrete operation mode and effect of water reducer on ready-mixed concrete.