In this study, calcium sulfoaluminate (CSA) cement pastes were tested for heat of hydration and chemical shrinkage at temperatures of 20 °C, 30 °C and 40 °C. Apparent activation energy (\(E_{a}\)) values were then calculated using both exponential and hyperbolic methods. The average \(E_{a}\) of the CSA cements ranged from 42.24 to 80.22 kJ/mol, much higher than that of Type I Portland cement (38–45 kJ/mol). \({E}_{a}\) increased slightly with the replacement of silica fume for cement. However, average \({E}_{a}\) decreased by 18.4% when 20% Class C fly ash was used, but increased by 21.3% when 40% Class C fly ash was used. \(E_{a}\) calculated from heat of hydration using the exponential method is 17% lower than that obtained using the hyperbolic method. When the exponential method was used, \({E}_{a}\) values determined using heat of hydration were 30% higher than those obtained using chemical shrinkage.

在这项研究中，硫铝酸钙 (CSA) 水泥浆在 20 °C、30 °C 和 40 °C 的温度下进行了水化热和化学收缩测试。然后使用指数和双曲线方法计算表观活化能 ( \(E_{a}\) ) 值。CSA 水泥的平均\(E_{a}\)范围为 42.24 至 80.22 kJ/mol，远高于 I 型硅酸盐水泥（38-45 kJ/mol）。\({E}_{a}\)随着硅粉替代水泥而略有增加。然而，当使用 20% C 类粉煤灰时，平均\({E}_{a}\)下降了 18.4%，而在使用 40% C 类粉煤灰时增加了 21.3%。\(E_{a}\)使用指数方法计算的水化热比使用双曲线方法获得的低 17%。当使用指数方法时，使用水化热确定的\({E}_{a}\)值比使用化学收缩获得的值高 30%。