摘要
通过超声回弹传统超声波平测修正法和单测区修正、全部测区修正值取平均的超声波平测修正法的试验对比,得出单测区修正、全部测区修正值取平均的超声波平测修正法修正后的声速更接近混凝土结构对测声速。工程实例进一步证明,单测区修正、全部测区修正值取平均的超声波平测修正法比传统超声波平测修正法具有更高的精确性,能更大程度减小混凝土结构推定强度误判的可能。
Through the test comparison between the traditional ultrasonic flat test correction method of ultrasonicrebound and the ultrasonic flat test correction method of single test area correction and average correction value of all test areas, it is concluded that the sound velocity after single test area correction and average correction value of all test areas is closer to the sound velocity of concrete structure. The engineering example further proves that the ultrasonic level measurement correction method with single measurement area correction and average correction values of all measurement areas has higher accuracy than the traditional ultrasonic level measurement correction method and can reduce the possibility of false judgment of the estimated strength of concrete structure to a greater extent.
引文
[1]吴楠,韩爱民,孙春霞,等.超声回弹法平测声速修正系数计算及可靠性检验[J].中外公路,2008,28(5):243-246.
[2]超声回弹综合法检测混凝土强度技术规程:CECS02:2005[S].北京:中国计划出版社, 2005.