自密实混凝土在复杂结构工程中的应用

Self-compacting concrete in complex structure construction

通过试验确定了自密实混凝土拌合物的基本参数:坍落度2 5 0mm^2 7 0mm,扩散度不小于6 0 0 mm。在浇筑钢筋密集的结构复杂的构件时,在不经振捣的情况下,混凝土能顺利通过钢筋间隙并填充满模板的每一个角落,拆卸模板后,对混凝土进行全面检测,混凝土质量达到设计要求。

Basic parameters of self-compacting concrete including slump 250mm--270mm and diffusion degree more than 600mm are made sure according to experiments. When pouring complex members with compact reinforcing steel bars with non-vibrating, concrete can go through gaps between reinforcing steel bars, fill into models, Testing concrete after uninstalling models, the quality of concrete reaches the specifications.