工业固废在沥青混合料中的研究现状

Review of studies on industrial solid waste in asphalt mixture

主要介绍了钢渣、铁尾矿和粉煤灰三种不同类型工业固废的基本情况,阐明了掺入钢渣、铁尾矿和粉煤灰的沥青混合料的特点。重点列举了钢渣、铁尾矿和粉煤灰掺入不同级配沥青混合料的高温稳定性和水稳定性,并与天然集料沥青混合料进行对比。分析结果表明,掺入钢渣和粉煤灰以后,沥青混合料的高温稳定性和水稳定性均有所提升,但掺入铁尾矿以后,沥青混合料的高温稳定性和水稳定性有所降低。本综述可为使用工业固废作为路面材料提供参考。

The basic situations of three different types of industrial solid waste,including steel slag,iron tailings and fly ash,are introduced,and the characteristics of asphalt mixture mixed with these three types of wastes are illustrated.Their high temperature stability and water stability after mixing with different gradation asphalt mixtures are listed,and are compared with natural aggregate asphalt mixture.The results show that the high temperature stability and water stability of asphalt mixtures are improved with the addition of steel slag and fly ash,while those are reduced with the addition of iron tailings.This review can reference for using industrial waste as pavement materials.