关于混凝土强度等级对应的实体抗压强度标准值取值的探讨  

Discussion on Standard Value of In-Situ Compressive Strength Corresponding to Concrete Strength Grade

作　　者：曾宪列 李杭军 孙伯军 ZENG Xianlie;LI Hangjun;SUN Bojun(Shanghai Longsheng Construction(Group) Engineering Co.,Ltd.,Shanghai 201201,China)

机构地区：[1]上海隆盛建筑工程(集团)有限公司

出　　处：《工程质量》2019年第9期21-24,33,共5页Construction Quality

摘　　要：目前对现场实体混凝土抗压强度采用回弹法、超声回弹综合法、取芯法等方法进行检测。作为实体混凝土质量控制可靠检测手段,在建筑行业广泛应用。但相关规范中缺少对如何评定(判定)实体混凝土强度是否合格的内容,对混凝土强度等级对应的实体混凝土强度值也不明确。通过对相关规范中实体混凝土强度方面内容学习和梳理,就实体混凝土抗压强度标准值取值进行探讨并提出建议。At present,rebound method,ultrasonic rebound synthesis method and coring method are used to test the compressive strength of in-situ concrete. They have been used as reliable testing means for quality control of in-situ concrete and have been widely used in construction industry. However,there is a lack of criteria for evaluating (judging) the strength of in-situ concrete in relevant Standards,and the strength value of in-situ concrete corresponding to the strength grade of concrete is not clear. Based on the study and combing of the strength of concrete in relevant Standards,this paper discusses the standard value of compressive strength of concrete and puts forward some suggestions.

关 键 词：回弹法 强度检测 实体混凝土抗压强度标准值 混凝土强度等级 同条件养护试件 

分 类 号：TU528[建筑科学—建筑技术科学]