高流动性 (自填充 )混凝土 ,是指仅在自重作用下即可充满模型板内各个角落的混凝土。它的出现 ,使混凝土的浇注质量可以不再依赖振捣人员的操作技能。这种混凝土目前多在混凝土结构的补修、狭窄场所或钢筋密布处使用。用坍落度、流动度等评价混凝土的自填充性已不充分 ,日本大 High fluidity (self-filling) Concrete, refers to the concrete that can fill all corners of the model plate only under its own weight. Its emergence, so that the quality of concrete pouring can no longer rely on the vibrator’s operating skills. This kind of concrete is mostly used in the repair of concrete structures, narrow places or steel bars. With slump, fluidity evaluation of self-filling of concrete has been inadequate, Japan is large