二灰稳定风化砂无侧限抗压强度特性影响研究

Influences of unconfined compressive strength characteristics of lime-fly ash stabilized weathered sand

以三峡库区风化砂进行研究分析,从石灰粉煤灰比例为1∶2,1∶3,1∶4的二灰稳定风化砂对其无侧限抗压强度进行了论述,在不同的比例下研究在7d,14d,21d,28d养护龄期后的无侧限抗压强度指标。结果表明:二灰比例为1∶2,1∶3,1∶4中,石灰与粉煤灰比为1∶3时对风化砂稳定效果最佳。

In the unconfined compressive strength of lime-fly ash stabilized weathered sand with lime-fly ash ratio of 1∶2,1∶3 and 1∶4 in the Three Gorges Reservoir area is discussed.The unconfined compressive strength index after 7 days,14 days,21 days and 28 days of curing age is studied in different proportions.The results show that when the ratio of lime to fly ash is 1∶2,1∶3 and 1∶4,the ratio of lime to fly ash is 1∶3,the stabilization effect of weathered sand is the best.