再生混凝土的破坏形态研究

Research on the failure mode of recycled aggregate concrete

系统研究了再生混凝土在掺与不掺外加剂的条件下,再生粗骨料取代率为0、30%、50%、100%时的破坏形态,并附有相应的图片进行对比说明,得出了再生混凝土与天然混凝土的受压破坏形态相似,但延性随着粗骨料取代率的增加而增大,为再生混凝土的进一步研究提供了一定的理论依据。

The failure mode was discussed with different recycled coarse aggregate replacement ratio.The percentages of recycled coarse aggregate were 0,30%, 50%,and 100% in the mixed water-reducing agent or not.The experimental results show that natural concrete and recycled concrete＇s failure mode was similar.The ductility of recycled concrete would increase when the recycled coarse aggregate replacement rate increases.There are some corresponding pictures.The experimental results will provide a theoretical basis for further study of recycled concrete.