摘要
《建筑工程冬期施工规程》(JGJ/T104—2011)给出了分别采用等效龄期和度时积计算的两个成熟度―强度曲线方程,用来推算混凝土早期(设计强度60%以下)强度的标准值。通过使用卡西欧fx-570MS计算器对方程中的常数ɑ,b的回归计算,分析了两个方程的应用差异,以及在确定成熟度―强度曲线方程后,两个方程在推算混凝土养护期间强度、度时积和早拆强度判断的具体计算方法和步骤。
Specification for Winter Construction of Building Engineering （JGJ/T 104-2011） specifies two maturity-strength curve equations calculated according to equivalent ages and temperature-time product respectively, to deduct the standard value of concrete strength （below 60% of the design s period. Casio fx-570MS counter is used for regression calculation of two constants a and b trength） at early in the equations and differences in application of these two equations are analyzed. Detailed calculation methods and procedures of these two equations for deduction of curing strength, temperature-time product and early-removal strength are described after determination of maturity-strength curve equation.
出处
《建筑技术》
2014年第1期23-26,共4页
Architecture Technology
关键词
等效龄期
度时积
成熟度
回归计算
回归系数
现浇混凝土
equivalent age
temperature-time product
maturity
regression calculation
regression coefficient
cast-in-place concrete
