混凝土外加剂进场复验规定有哪些?
以下是小编为大家准备了混凝土外加剂进场复验规定有哪些?,本文共8篇,欢迎参阅。 混凝土外加剂进场复验规定有哪些? 混凝土外加剂是指在拌制混凝土过程中加入的,用以改善混凝土拌合物性能和硬化混凝土质量与性能的材料, (1)外加剂分类: 1)改善混凝土拌合物流变性能的外加剂:减水剂、引气剂和泵送剂; 2)调节混凝土凝结时间、硬化性能的外加剂:缓凝剂、早强剂和速凝剂; 3)改善混凝土耐久性的外加剂:引水剂
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