2　术语和符号

• 2.1　术语

• 2.2　符号

4　超声波检测设备

• 4.1　超声仪

• 4.2　换能器

• 4.3　使用要求

5　声学参数测量与计算

• 5.1　声学参数测量

• 5.2　声学参数计算

6　数据处理和异常值判定

• 6.1　一般规定

• 6.2　对比法异常值判定

• 6.3　概率法异常值判定

7　普通混凝土构件缺陷检测

• 7.1　内部不密实区和空洞检测

• 7.2　单面平测法裂缝深度检测

• 7.3　双面斜测法裂缝深度检测

• 7.4　结合面缺陷检测

• 7.5　表面损伤层检测

8　大体积混凝土缺陷检测

• 8.1　一般规定

• 8.2　内部不密实区和空洞检测

• 8.3　裂缝深度检测

• 8.4　结合面缺陷检测

9　灌注桩混凝土缺陷检测

• 9.1　一般规定

• 9.2　检测方法

• 9.3　数据处理和判定

10　钢-混凝土组合结构缺陷检测

• 10.1　一般规定

• 10.2　钢管混凝土构件缺陷检测

• 10.3　钢骨混凝土构件缺陷检测

11　装配式混凝土结构连接缺陷检测

• 11.1　后浇部位缺陷检测

• 11.2　套筒或浆锚孔道灌浆饱满度检测

附录A　声时初读数测量

• A.1　一般规定

• A.2　连接一对厚度振动式换能器零声时测量

• A.3　连接一对径向振动式换能器零声时测量

附录B　仪器计时系统校验

• B.1　声时测量

• B.2　空气声速的测量值和标准值计算

2　Terms and symbols

• 2.1　Terms

• 2.2　Symbols

4　Ultrasonic testing equipment

• 4.1　Ultrasonic instrument

• 4.2　Transducers

• 4.3　Requirements of use

5　Measurement and calculation of acoustic parameters

• 5.1　Measurement of acoustic parameters

• 5.2　Calculation of acoustic parameters

6　Data processing and abnormal value determination

• 6.1　General requirements

• 6.2　Abnormal value determination by the comparative method

• 6.3　Abnormal value determination by the probability method

7　Defect detection of ordinary concrete components

• 7.1　Detection of concrete undense areas and cavities

• 7.2　Detection of concrete crack depth by single sided method

• 7.3　Detection of concrete crack depth by double sided method

• 7.4　Detection of concrete joint surface defect

• 7.5　Detection of concrete surface damage layer

8　Defect detection of large volume concrete

• 8.1　General requirements

• 8.2　Detection of concrete undense areas and cavitie

• 8.3　Detection of concrete crack depth

• 8.4　Detection of concrete joint surface defect

9　Defect detection of cast-in-place pile concrete

• 9.1　General requirements

• 9.2　Detection method

• 9.3　Data processing and determination

10　Defect detection of steel-concrete composite

• 10.1　General requirements

• 10.2　Defect detection of concrete-filled steel tube members

• 10.3　Defect detection of steel reinforced concrete members

11　Connection defect of prefabricated concrete structure

• 11.1　Defect detection of post casting site

• 11.2　Detection of grouting fullness for sleeve or rebar lap grouting anchor holes

Appendix A　Measurement of acoustic sound-time initial reading

Appendix B　Calibration of instrument timing system