摘要
基于回弹-钻芯修正法的混凝土强度检测数据,分析钻芯修正对混凝土回弹强度的影响,回归得到钻芯抗压强度与回弹值之间的关系,并进一步通过实际应用验证回归得到的关系式,结果表明:回弹值与钻芯抗压强度具有良好的相关性,且最佳函数关系为二次函数。
Based on the testing data of concrete strength with the rebound and core-drilling method,the effect of core correction on the strength of rebound was analyzed.And the function relations between compressive strength and rebound value of concrete were obtained and verified.The results showed that there were good correlations between rebound value and the pressure-resistance intensity of core samples to estimate the pressure-resistance intensity,and the optimal regression curve was the parabolic function.
作者
周明星
房栋
张晓婉
陈刚
ZHOU Ming-xing;FANG dong;ZHANG Xiao-wan;CHEN Gang(School of Business&Management,Henan University of Animal Husbandry&Economy,Zhengzhou 450044,China;School of Civil Engineering,Zhengzhou University,Zhengzhou 450000,China;Xuchang construction engineering station,Xuchang 461000,China;College of Civil Engineering,Henan University of Engineering,Zhengzhou 451191,China)
出处
《河南城建学院学报》
2021年第6期30-36,共7页
Journal of Henan University of Urban Construction
基金
河南省科技攻关计划项目(202102310254)
河南省高等学校重点科研项目(20B560017)。
关键词
回弹值
钻芯抗压强度
回归分析
rebound value
compressive strength of drilled core
regression analysis
