关于C_（2o）混凝土强度推定计算方法初探

The Tentative Research on Calculating Method of i the strength of C_(20)Concrete

本文运用概率理论和数理统计的方法对校外建筑工程所做的混凝土强度Ｃ２０的混凝土配合比强度值进行推定计算，找出Ｃ２０混凝土配合比７天平均强度和２８天平均强度的规律性．

In this paper,the strength of C20concrete made for outside school arctitectural engineering was calculated by the method of probabilith theory and mathematical statistics,And the regularity showing the average strength of C20concrete in 7 days and 28 days was forund.