回弹法检测混凝土强度技术问题探讨

Discussion on Technical Problems of Testing Concrete Strength by Rebound Method

结合工程经验,通过对现场回弹法检测中回弹仪型号选用和混凝土异常碳化问题进行讨论,提出了针对性的解决办法:回弹仪型号选用应根据试块抗压强度、强度设计值和现场预估检测综合选择;应根据养护情况、粉煤灰掺量、龄期和脱模剂判断异常碳化的可能性,进一步提高检测的准确性。

Combined with engineering experience, through the discussion of the rebound hammer model selection during site rebound method test and the abnormal carbonization of concrete, targeted solutions are proposed in the paper: The selection of the rebound hammer model should be based on the compressive strength of the test block,strength design value and on-site estimation test;The possibility of abnormal carbonization should be judged according to the curing conditions, the admixture amount of flyash, the age and the releasing agent, so as to further improve the accuracy of detection.