Based on analyzing the eruption and tiny aggregate effect of fly ash, the influence of fly ash on the shrinkage fissure of concrete is studied, caused by the plastic deformation, dry or temperature.

以粉煤灰的火山灰效应、微集料效应分析为基础，分析研究了粉煤灰对混凝土塑性收缩、干缩、自缩和温度收缩裂缝的影响。

youdao

Study results show that sintered fly ash aggregate concrete is relatively high in strength and more economical in use, and its dry density and thermal properties can meet design requirements.

结果表明，用粉煤灰陶粒所配制的轻集料混凝土强度较高，干表现密度和热性能均能满足设计要求，而且更经济。

youdao

Along with percentage of water loss and aggregate grade, the laws of small beam dry shrinkage strain and average dry shrinkage index.

小梁干缩应变、平均干缩系数随失水率、集料级配的变化规律。

youdao