关键词: 震动, 新浇注混凝土, 受压破坏, 内部缺陷, 细观结构

Abstract: After observing the concrete shaken by the simulation of seismic station and aggregates interface by stereo microscope， structural morphology of the fresh concrete was obtained and its internal defects were confirmed; the load－deformation curve was gained through ultrasonic wave measurement; the differences between concrete property with vibration damage and without vibration damage were further analyzed; the influence of internal defects on concrete strength was studied from the perspective of concrete component elements and microstructure． It was demonstrated that after 28 days of maintenance， effective recovery mechanism of the interface of the concrete shaken by 6－9 magnitude quake was obtained．

Key words: shake, fresh concrete, compression destruction, internal defects, microstructure