混凝土胶凝材料的沉积与团聚细观研究与分析

Microscopic research and analysis on deposition and reunion of concrete cementing material

通过显微观测试验,解释了混凝土拌合物加水后胶凝材料颗粒团聚和沉积现象,分析了减水剂对胶凝材料颗粒团聚和沉积的影响,并从颗粒沉积作用、颗粒间空隙、环境温湿度等方面,探讨了混凝土拌合物产生干燥收缩裂缝的影响因素,提出了减少混凝土干燥收缩量的技术发展方向。

Through microscopic test,the paper interprets reunion and deposition phenomenon of concrete cementing material with water,and analyzes the impacts of water-reducing admixture upon cementing material. Starting from aspects of particle deposition function,particle space and environment humidity,it explores the influential factors of concrete mixture drying shrinkage cracks,and finally puts forward technological development tendency of concrete drying shrinkage amount.