关于“超声波角测、平测和声速计算方法”验证工作(之二)  

Verification of “Ultrasonic Angle Measurement,Flat Measurement and Sound Speed Calculation”(Ⅱ)

作　　者：朱跃武[1] 袁广州 王伟 袁志远 ZHU Yuewu;YUAN Guangzhou;WANG Wei;YUAN Zhiyuan(Shenzhen Branch of China Academy of Building Research,Shenzhen Guangdong 518057,China;Shenzhen Futian Construction Engineering Quality Inspection Center,Shenzhen Guangdong 518057,China)

机构地区：[1]中国建筑科学研究院深圳分院,广东深圳518057 [2]深圳市福田建设工程质量检测中心,广东深圳518057

出　　处：《工程质量》2019年第2期55-58,62,共5页Construction Quality

摘　　要：超声回弹综合法的超声检测一般以对测为主,当遇到特殊工况时也可采用角测或平测等方法进行超声波测试,但因不同测试方法所采集到的超声波声速存在差异。为了验证这个问题,制作多个混凝土阶梯试件,按照CECS 02∶2005《超声回弹综合法检测混凝土抗压强度技术规程》附录B的要求进行综合验证,最后提出验证结论。The ultrasonic testing of ultrasonic rebound synthetic method is mainly based on the measurement,when the special working conditions are encountered,the ultrasonic testing can be carried out by the methods of angle measurement or leveling.However,the ultrasonic velocity of the ultrasonic testing is different because of the different testing methods.In order to verify this problem,a number of public companies are arranged to make a number of concrete staircase specimens,according to“ultrasonic”.Finally,the verification conclusion is put forward by comprehensive verification of the requirements of Appendix B of the technical specification for concrete compressive strength by rebound method.

关 键 词：对测 角测 平测 测距 曲线斜率 声时 声速 斜率比 

分 类 号：TU755.7[建筑科学—建筑技术科学]