小直径自密实混凝土芯样试件强度试验研究  

RESEARCH ON STRENGTH OF SMALL DLAMETER SELF-COMPACTING CONCRETE CORE SAMPLES

作　　者：朱亚阁 叶振东 高尚 许李瑜 ZHU Ya-ge;YE Zhen-dong;GAO Shang;XU Li-yu(Shanghai Nuclear Engineering Research and Design Institute,200233,Shanghai,China)

机构地区：[1]上海核工程研究设计院,上海200030

出　　处：《建筑技术》2023年第10期1213-1216,共4页Architecture Technology

基　　金：基于设计与施工技术优化的后续项目工期优化研究(2022YW2046)。

摘　　要：通过对Ф25 mm×25 mm自密实混凝土芯样试件进行抗压强度检测,对比分析其与Ф100 mm×100 mm标准直径芯样强度值的差异,探讨使用Ф25 mm×25 mm直径芯样试件强度值作为抗压强度推定、评定混凝土强度的可行性;同时通过Ф70 mm×70 mm,Ф75 mm×75 mm自密实混凝土芯样试件抗压强度检测,提出了其与标准立方体混凝土试件抗压强度值之间的修正系数。The compressive strength ofФ25 mm×25 mm self-compacting concrete core samples is tested and compared with that ofФ100 mm×100 mm self-compacting concrete core samples.Then,the feasibility of using the strength ofФ25 mm×25 mm diameter core sample as the evaluation of concrete strength is discussed.In addition,the compressive strength ofФ70 mm×70 mm,Ф75 mm×75 mm self-compacting concrete core samples is tested,and the correction coefficient between the compressive strength of self compacting concrete core samples and standard cubic concrete samples is proposed.

关 键 词：钻芯法 芯样试件 芯样抗压强度 强度评定 修正系数 

分 类 号：TU528.07[建筑科学—建筑技术科学]