doi:10.3963/j.issn.1674-6066.2023.01.017钢筋保护层厚度检测、评定与案例分析季长征1,2,孙建东2,李仰贤2,赵晶1,刘松石1(1.山东省建筑工程质量检验检测中心有限公司,济南250031;2.山东省建筑科学研究院有限公司,济南250031)摘要:钢筋保护层厚度直接影响结构构件的耐久性、承载力。只有在保证施工质量的前提下,混凝土才能对钢筋提供可靠的握裹力,两者才能更好地协同工作。文章介绍了目前钢筋保护层厚度的常用检测方法、检测原理以及影响检测结果的因素;归纳总结出8条提高钢筋保护层厚度检测准确度的方式方法;结合案例分析,给出了墙、柱类构件混凝土保护层厚度检测的方法、步骤和评定方法。钢筋保护层厚度施工质量不易控制,对结构构件钢筋保护层厚度的精准检测和合理评定具有非常重要的意义,相关标准也宜尽快完善验收要求。关键词:保护层厚度;电磁感应;检测;准确度;评定Detection,EvaluationandCaseAnalysisofSteelBarProtectiveLayerThicknessJIChang-zheng1,2,SUNJian-dong2,LIYang-xian2,ZHAOJing1,LIUSong-shi1(1.ShandongConstructionEngineeringQualityInspectionandTestingCenterCo,Ltd,Ji’nan250031,China;2.ShandongInstituteofArchitecturalSciencesCo,Ltd,Ji’nan250031,China)Abstract:Thethicknessofsteelbarprotectivelayerdirectlyaffectsthedurabilityandbearingcapacityofstructuralmembers.Onlyunderthepremiseofensuringtheconstructionquality,theconcretecanprovideagoodbondingforcetothesteelbar,andthetwocanworkbettertogether.Thispaperintroducesthecommondetectionmethods,detectionprinciplesandfactorsaffectingthedetectionresultsofthethicknessoftheprotectivelayerofsteelbars.8waysissum-marizedtoimprovethedetectionaccuracyofthethicknessofthesteelcover.Combinedwithcaseanalysis,themethod,stepsandevaluationmethodofconcretecoverthicknessdetectionofwallandcolumnmembersaregiven.Theconstruc-tionqualityofthethicknessofthesteelbarprotectivelayerisnoteasytocontrol.Itisofgreatsignificancetoaccuratelydetectandreasonablyevaluatethethicknessofthesteelbarprotectivelayerofthestructuralmembers.Therelevantstandardsshouldalsoimprovetheacceptancerequirementsassoonaspossible.Keywords:protectivelayerthickness;electromagneticinduction;detection;accuracy;evaluation收稿日期:2022-...
