摘要
介绍采用钻芯法检测混凝土劈裂抗拉强度的试验方法,对比分析采用不同加载方式、混凝土芯样直径和高径比对混凝土芯样劈裂抗拉强度的影响。试验结果表明,混凝土芯样劈裂抗拉强度与混凝土标准立方体试块劈裂抗拉强度密切相关,加载方式对混凝土芯样劈裂抗拉强度影响较大,采用不同直径的混凝土芯样应考虑尺寸效应的影响,采用小高径比混凝土芯样检测混凝土劈裂抗拉强度是可行的。
The experimental method of concrete splitting tensile strength by core drilling method detection was introduced.Influences of different loading methods,diameters and height-diameter ratios of the concrete splitting tensile strength of the core samples were compared and analyzed. Experimental results show that concrete splitting tensile strength of core samples and standard concrete test cube splitting tensile strength are closely related. Loading method influences splitting tensile strength of the concrete core samples a lot. The influence of size effect should be considered if the core samples with different diameters are adopted. It is feasible to use the core samples with small height-diameter ratio to test splitting tensile strength of concrete.
出处
《建筑结构》
CSCD
北大核心
2014年第21期72-74,共3页
Building Structure
关键词
钻芯法
劈裂抗拉强度
侧面加载
端面加载
高径比
尺寸效应
core drilling method
splitting tensile strength
side loading
transverse loading
height-diameter ratio
size effect
