常用混凝土强度检测方法有: 回弹法、超声回弹综合法、钻芯法。针对混凝土表层与内部质量有差异的情况, 单一回弹法的检测结果不能很好地反映内部混凝土强度实际情况, 需利用钻芯法修正回弹值。通过钻芯修正, 对比回弹法与超声回弹综合法的检测结果差异, 得出更加合理的检测方法。

The current commonly used methods of detecting the strength of concrete are rebound method, ultrasonic-rebound combined method and core drilling method. In the case of the quality differences between the surface and internal of concrete, single rebound method can not reflect the actual situation of the internal strength of concrete. We can use core drilling method to amend the measurements. After amending by drilled core, this paper contrasts the differences of the measurements between rebound method and ultrasonic-rebound combined method. Then, we can select the more reasonable method.