工业废渣粉煤灰与石灰及碎石拌合、辗压成型后,其硅铝酸盐类等活性元素经与水化合作用,逐渐结硬成板体,产生较高的强度和整体性。用它作为道路的基层材料,已越来越引起人们的广泛兴趣。除在城市道路方面已较普遍采用而外,近年来,在各地市郊一、二级公路上也已得到了推广使用。应该肯定的是,这类半刚性基层材料由 Industrial waste fly ash and lime and gravel mixing, rolling molding, the aluminosilicate and other active elements by the hydration, gradually knot hard into a board, resulting in higher strength and integrity. Using it as the grassroots road material has drawn more and more people’s interest. In addition to the urban roads have been more commonly used in recent years, all over the suburbs of a secondary and secondary roads have also been promoted. It should be affirmed that this type of semi-rigid base material consists of