工程结构实体混凝土强度测试的准确性研究

Study on solid concrete strength testing accuracy of engineering structure

介绍了回弹法检测结构实体混凝土抗压强度的基本原理,在驮英水库及灌区工程不同强度等级实体混凝土进行钻芯法和回弹法检测试验,结果表明:50 mm和75 mm芯样在实际应用中具有较高的准确度,钻芯法和回弹法测量准确性均与龄期密切相关,且龄期为60 d左右时,测量结果最接近实际强度。

An introduction was made on the basic principle of testing the compressive strength of structural solid concrete by rebound method. For Tuoying Reservoir Irrigation Zone Project, the solid concrete of various strength grades was tested by drilled core method and rebound method respectively. The testing results demonstrate that core samples of 50mm and 75mm have relatively high accuracy in practical application. The testing accuracy of drilled core method and rebound method is closely related to age. When the age is 60d approximately, the testing result is mostly close to the actual strength.