The results show that the cracking resistance of binder mixing with silica fume is decreased at the same W/B (water binder ratio), and that addition of fly ash can increase the cracking resi...

• 结果表明:早龄期时,在相同水胶比条件下,掺加硅灰使胶凝材料体系裂纹扩展阻力明显降低,在低水胶比条件下,掺加一定量的粉煤灰能够明显增加体系的裂纹扩展阻力,掺加20%25的粉煤灰能使胶凝材料具有较高的裂纹扩展阻力。