矿物掺合料对混凝土毛细吸收作用影响的试验研究

Study on concrete capillary absorption effect mix with mineral admixtures

研究粉煤灰、矿粉等矿物掺合料的种类及掺入量对混凝土毛细吸收作用的影响,将其按一定比例掺入混凝土中,同时等量替代混凝土中的水泥。通过混凝土毛细吸收试验,并绘制混凝土试件毛细吸水量随时间变化曲线,试验结果表明,掺入一定比例的粉煤灰、矿粉可以有效的降低试件的毛细吸收系数,提高其抗渗透性能,当粉煤灰掺量(等量替代水泥)为30%、矿粉掺量为50%时,混凝土试件的抗渗透性能最好。

Study the effect of fly ash, slag to the capillary absorption in concrete.Mix a certain percentage mineral powder that equiva- lent substitute the cement in concrete.Though the capillary water absorption text, drawing the capillary water absorption curve, the result showed that the capillary absorption coefficient significantly decreased with the fly ash and slag mix.And the concrete samples have a good performance on penetration resistance.