两种回归分析法在早期推定混凝土强度试验应用中的比较  

Comparison between two Different Regression Analysis Applied in Tset of Early Estimation of Concrete Compressive Strength

作　　者：杨国发 

机构地区：[1]福建省泉州中合创展混凝土有限公司,福建泉州362000

出　　处：《福建建设科技》2014年第6期31-33,共3页Fujian Construction Science & Technology

摘　　要：本文依据标准应用线性回归和幂函数回归法建立早期推定混凝土强度关系式,通过试验比较分析表明线性回归和幂函数回归法建立的混凝土强度关系式均有较好的相关性,幂函数回归法建立的公式相对于线性回归法具有更好的相关性和精度,同时分析结果表明7d混凝土强度关系式比3d混凝土强度关系相关性更好,剩余标准差更低。This article established the formulas of early estimation concrete strength by linear regression and exponential function regression method. Through experimental comparison analysis,the two formulas both are in good correlation. The formula of strength established by the exponential function regression method had better relevance and accuracy than the formula of strength established by the linear regression method. Meanwhile,the results showed the 7-day formula of strength was better than the 3-day formula of strength with good correlation and less residual standard deviation.

关 键 词：回归分析 混凝土强度 比较 

分 类 号：TU528[建筑科学—建筑技术科学]