The mixture made with fly ash, water reducing agent and water has a compressive strength of not less than 2. 0 MPa in 28 days and a permeability coefficient of not greater than 10 ~6cm/s.

• 针对不同质量等级的粉煤灰；通过试验确定了HAS固化剂、粉煤灰、减水剂和水的配合比；获得28d龄期抗压强度2.；0MPa以上、90d龄期渗透系数不大于10~(-6)cm/s数量级的铺盖材料。