混凝土绝热温升公式的理论推导与试验研究  

Theoretical derivation and experimental research on adiabatic temperature rise of concrete

作　　者：董继红[1] 李占印[2] 

机构地区：[1]盐城工学院化学与生物工程学院,江苏盐城224000 [2]盐城工学院土木工程学院,江苏盐城224000

出　　处：《四川建筑科学研究》2011年第5期244-246,共3页Sichuan Building Science

摘　　要：由固体热传导理论可知,混凝土绝热温升仅与水泥水化放热规律有关。根据笔者研究得出的水泥恒温水化放热规律及水泥水化放热行为的温度效应,可以预测任意温度条件下任一时刻水化放热总量。进而,从理论上推导出混凝土绝热温升表达式;然后,采用10 mm木胶板内衬100 mm聚苯乙烯泡沫板和3 mm胶合板模拟绝热状态,进行试验验证。最后,得出混凝土绝热温升表达式可以采用双曲函数和复合指数函数表达,而双曲函数在形式上要比复合指数函数简单,所以多数人倾向于采用双曲函数表达式。Based on the thermal conduction theory,adiabatic temperature rise of concrete has relations with the law of hydration heat of cement.According to the law of hydration heat of cement curing at isothermal temperature and effect of temperature on heat release behavior of hydration of cement tested by author,total hydration heat of cement curing at optional temperature can accurated.And then expression on adiabatic temperature rise of concrete was inferred in terms of theory.After that,using the 10mm wood glue board lining 100 mm polystyrene foam board and 3mm plywood analogs adiabatic status,maked a trial test.Finally,made a summary：hyperbolic function and complex exponential function can used to express adiabatic temperature rise of concrete.In addition the hyperbolic function is simple in form than the complex exponential function,so most people prefer hyperbolic function expression.

关 键 词：绝热温升 理论推导 试验验证 双曲函数 复合指数函数 

分 类 号：TU111[建筑科学—建筑理论]