The results indicated that the addition of silica fume increased cracking of HPC at early age,and the addition of finely ground fly ash with high quality decrea.

• 结果表明:掺硅灰加剧了混凝土的早期开裂;优质磨细粉煤灰的加入对混凝土早期开裂有一定的抑制作用。