高掺量石粉混凝土配合比试验研究

研究了高石粉掺量对普通混凝土和易性、抗压强度和抗渗性能的影响规律。研究结果表明,掺加适量石粉有助于改善混凝土和易性;石粉掺量每增加5%,混凝土配合比的砂率可相应降低2%;掺加石粉不会对抗压强度产生不良影响,但是石粉最佳掺量为10～25%。掺加石粉也有助于改善混凝土抗渗性能。

Experimental study of concrete mixing on high content power

The high powder content of normal concrete workability,compressive strength and impermeability of the law. The results show that the mixing amount of powder will help to improve the workability of concrete;powder content of each 5%increase in the rate of sand concrete mix can be correspondingly reduced by 2%;mixing powder will not have adverse effects on the compressive strength,but Optimal amount of powder 10～25%.Mixing powder also help to improve the impermeability of concrete.