山渣料路用性能试验  

Road performance experiment of rock slag mixture

作　　者：王东耀[1] 刘丽萍[2] 叶万军[1] 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室 [2]西安工业大学建筑工程系,陕西西安710032

出　　处：《长安大学学报（自然科学版）》2007年第1期15-18,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：陕西省交通科技项目(0103K)

摘　　要：针对山渣料岩性、颗粒组成、含水量等的变异性,为了系统研究其路用性能,按照不同级配、不同粗粒料质量含量制样进行了击实、室内承载比(CBR)、膨胀量、浸水破碎及回弹模量等试验研究。结果表明:当粗粒料质量含量超过50%时,山渣料的最大干密度增加量很小;山渣料的CBR值比一般土基的CBR值大得多,且在粗粒料质量含量为0的条件下,CBR值仍可满足现行规范的要求;山渣料不属于膨胀土材料,其水稳性较好;随粗粒料质量含量的增加,山渣料的回弹模量值增加。Based on the variability of rock property, material gradation and water content ot rock slag mixture, several tests are carried out to study compaction, indoor bearing-ratio （CBR）, expansion, crash in water and rebound modulus of rock slag mixture with different gradations and coarse material content. The results show that when coarse material content exceeds 50 M, the biggest dry density almost remains the same; the value of CBR of rock slag mixture is much more than those of common soil, and even if coarse material content is 0, the value of CBR still can meet the demands of speeification; rock slag mixture is not expansive material, and it has high water stability; with coarse material content becoming more, the value of rebound modulus of rock slag mixture increases. 3 tabs, 5 figs, 11 refs.

关 键 词：道路工程 山渣料 路用性能 粗粒料质量含量 试验 

分 类 号：U414.1[交通运输工程—道路与铁道工程]