Review of research on the reuse of waste concrete

In this paper, the utilization of waste concrete is introduced, and the advantages and disadvantages of common concrete crushing methods are analyzed. In addition, the characteristics of the multiple, internal crack density and the poor performance of the new cement mortar were summarized. It is found that the cracks on the surface of the recycled aggregate will be reduced when the waste concrete is pretreated and then broken. The existing strengthening technology is making to improve the external defects of aggregate, but strengthening performance of aggregate is not improved, and the effect will be better after the comprehensive improvement of aggregate defects.