钻芯强度与标准立方体试件强度的关系  

Relationship between Core Strength and Standard Cube Specimen Strength

作　　者：朱跃武 石永[2] 吴天俊 刘定宗 ZHU Yuewu;SHI Yong;WU Tianjun;LIU Dingzong(Shenzhen Branch of China Architectural Research Institute Co.,Ltd.,Shenzhen Guangdong 518057,China;Jianyan Technology Co.,Ltd.,Beijing 100013,China)

机构地区：[1]中国建筑科学研究院有限公司深圳分公司,广东深圳518057 [2]建研科技股份有限公司,北京100013

出　　处：《工程质量》2021年第3期67-71,共5页Construction Quality

摘　　要：论文探索了钻芯强度与立方体试件抗压强度之间的系统误差对钻芯强度的影响,为防止“拒真”概率的发生,提出了1.1438系数修正法,针对标准差大于规程规定时采用样本最小值或样本代表值乘以修正系数,可有效改善检测结果的准确性。This paper explores the core strength and cubic compressive strength of the specimens between the system error influence on core strength,to prevent the happening of the“true”probability,1.1438 coefficient correction method was proposed,according to the provisions of the standard deviation is greater than the rules of using the minimum sample or samples representative value multiplied by correction coefficient,which can effectively improve the accuracy of detection results.

关 键 词：芯样强度 剪切强度 拒真 取伪 标准差 

分 类 号：TU528[建筑科学—建筑技术科学] TU501