铁尾矿碎石资源特性分析及路用可行性评价  

Characteristics analysis and feasibility evaluation of iron tailings gravel resources

作　　者：陈保军 荣亚鹏 胡震宇 王晋轩 CHEN Baojun;RONG Yapeng;HU Zhenyu;WANG Jinxuan(Shanxi Jin-Yang Expressway Reconstruction and Extension Project Management Co.,Ltd.,Jincheng 048000,China;Shanxi Transportation Technology Research&Development Co.,Ltd.,Taiyuan 030000,China)

机构地区：[1]山西晋阳高速改扩建项目管理有限公司,山西晋城048000 [2]山西省交通科技研发有限公司,山西太原030000

出　　处：《四川建材》2024年第5期22-24,42,共4页Sichuan Building Materials

基　　金：山西交控集团科技项目:晋阳改扩建工程科技示范与施工成套技术研究(2022-JKKJ-5);山西省交通运输厅科技项目:固体废弃物在现浇泡沫轻质土技术中的应用研究(2020-1-9);山西省科技厅青年基金项目:赤泥协同多源固废注浆材料水化历程及流变行为研究(202203021222429)。

摘　　要：山西铁矿资源丰富,选矿过程产生大量铁尾矿废弃物,利用率较低,只能长期堆存于尾矿库,不仅占用大量的农用用地,破坏当地生态环境,而且尾矿库的维护也需要大量资金。因此,本研究以山西忻州繁峙地区铁尾矿为研究对象,从物化指标、集料性能、耐久性能对铁尾矿碎石进行资源特性分析,并对其进行路用可行性评价,为今后山西铁尾矿废弃物应用于道路中提供理论和实践依据。试验结果表明:铁尾矿碎石的物化指标、集料性能、耐久性能与石灰岩碎石接近,可应用于水稳基层用碎石。Shanxi is rich in iron ore resources,and a large amount of iron tailings waste is generated during the beneficiation process,which has a low utilization rate and can only be stored in the tailings pond for a long time,which not only occupies a large amount of agricultural land and damages the local ecological environment,but also requires a large amount of funds for the maintenance of the tailings pond.Therefore,this study takes the iron tailings from Fanchi area of Xinzhou,Shanxi Province as the research object,analyzes the resource characteristics of the iron tailings gravel from the physicochemical index,aggregate performance and durability,and evaluates its road feasibility,providing theoretical and practical basis for the future application of Shanxi iron tailings waste in roads.The experimental results show that the physicochemical indexes,aggregate properties and durability of iron tailings gravel are close to those of limestone gravel,and can be used in water stabilized base gravel.

关 键 词：铁尾矿 碎石 资源特性 路用 可行性 

分 类 号：TU521.25[建筑科学—建筑技术科学]