粉煤灰对补偿收缩混凝土热工性能的影响研究

Research on the thermal properties of shrinkage compensating concrete with fly ash

本文对掺加粉煤灰的补偿收缩混凝土的绝热温升、比热、导热系数和导温系数进行了试验研究,通过分别掺加18%、23%、30%和40%的粉煤灰,对比分析了补偿收缩混凝土的热工参数,结果表明,粉煤灰对混凝土的绝热温升过程有明显的影响,而对混凝土的比热影响不大。粉煤灰对补偿收缩混凝土的热工参数的影响仍需进行深入研究。

This paper studies the adiabatic temperature rise, specific heat, thermal conductivity and thermal diffusivity of shrinkage compensating concrete mixed with 18%, 23%, 30% and 40% fly ash. The results present that fly ash has significant influence on the process of the adiabatic temperature rise, and the influence on the specific heat is little. Further research on the thermal parameters of shrinkage compensating concrete is needed.