ICS91.080.40 CCSP25DB37 山东省地方标准 DB37/T2361－2022 代替DB37/T2361－2013 超声回弹综合法检测混凝土抗压强度 技术规程 Technicalspecificationfordetectingstrengthofconcretebyultrasonic-rebound combinedmethod （报批稿） 20XX-XX-XX发布 20XX-XX-XX实施 山东省市场监督管理局发布 DB37/T2361－**** I目  次 前言...................................................................................................................................................................III 引言.....................................................................................................................................................................IV 1范围.................................................................................................................................................................1 2规范性引用文件.............................................................................................................................................1 3术语和定义.....................................................................................................................................................1 4符号.................................................................................................................................................................2 5回弹仪.............................................................................................................................................................3 5.1基本要求.................................................................................................................................................3 5.2技术要求.................................................................................................................................................3 5.3校准.........................................................................................................................................................4 5.4率定.........................................................................................................................................................5 5.5操作.........................................................................................................................................................5 5.6保养.........................................................................................................................................................5 6混凝土超声波检测仪.....................................................................................................................................6 6.1基本要求.................................................................................................................................................6 6.2超声仪正常工作条件.............................................................................................................................6 6.3超声仪校准.............................................................................................................................................7 6.4超声仪操作.............................................................................................................................................7 6.5超声仪保养.............................................................................................................................................7 7检测技术.........................................................................................................................................................7 7.1一般规定.................................................................................................................................................7 7.2回弹值测量与计算.................................................................................................................................9 7.3碳化深度值测量与计算.......................................................................................................................10 7.4超声声速值测量与计算.......................................................................................................................10 7.5钻芯修正...........................................