石灰粉煤灰稳定铁尾矿碎石的路用性能研究

Research on the Performances of Lime Fly Ash Stabilized Iron Tailing Gravel in Highway Application

根据《公路无机结合料稳定材料试验规程》的相关试验方法,对石灰粉煤灰稳定铁尾矿碎石混合料的强度、模量、抗冻性能、水稳定性等路用技术性能进行了系统的试验研究,分析了其强度的影响因素,并阐述了石灰粉煤灰稳定铁尾矿碎石的强度形成机理。试验结果表明,石灰粉煤灰稳定铁尾矿碎石的各项技术性能满足现行规范的要求,可以作为各级公路的底基层或基层材料。

Based on the method in Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering,the technical performances of lime fly ash stabilized iron tailing gravel in highway application were researched by systemic experiments in this paper.These include the strength,modulus,and frost resistance property,water stability.And the influence factors of the mixture strength were analyzed,too.Then,the mechanism of lime fly ash stabilized iron tailing gravel in strength was expounded.The results show that the mixture of lime fly ash stabilized iron tailing gravel has higher strength and modulus,good frost resistance property and water stability.The technical performances of lime fly ash stabilized iron tailing gravel conform to the current specification,so it can be used as sub-base course or base course material.