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砼早期强度涉及到钢筋殖结构构件在施工过程中安全性。通过砼标准强度龄期以内的早期强度统计分析,给出了不同品性水泥在不同温度下的政早期强度公式,并与国外早期强度公式进行了比较。基于砼早期强度的时变性特点,推出了砼结构构件早期抗力的数学模型,供施工中验算砼结构早期强度参考。
Early strength relates to the safety of reinforced concrete structures during construction. By using the early strength statistical analysis within the standard intensity age, the formulae for the early-intensity strength of cement with different properties at different temperatures are given and compared with the early foreign strength formulas. Based on the time-varying characteristics of early strength of concrete, a mathematical model for the early resistance of concrete structural members was introduced to provide reference for the early strength of structures used in construction.