透水混凝土铺装各层对径流污染物的削减试验研究  

EXPERIMENT ON THE REMOVAL OF ROAD RUNOFF POLLUTANTS IN EACH STRUCTURE LAYER OF PERMEABLE CONCRETE PAVEMENT

作　　者：王俊岭[1] 徐怡[1] 魏胜[2] 张雅君[1] 冯萃敏[1] 李俊奇[1] 

机构地区：[1]北京建筑大学城市雨水系统与水环境省部共建教育部重点实验室,北京100044 [2]北京市市政工程设计研究总院有限公司,北京100082

出　　处：《环境工程》2016年第10期39-43,共5页Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项(2011ZX07301-004-01)

摘　　要：通过使用人工模拟降雨装置和路面装置,试验研究了径流污染物在透水混凝土路面各结构层的去除情况。结果表明,透水混凝土面层和多孔隙水泥稳定基层对污染物的去除率分别为30%~50%、15%~30%,而级配碎石基层对污染物的去除率不足10%。据分析主要原因为透水混凝土面层和多孔隙水泥稳定基层为多孔介质,并含有水泥,由于水泥自身特性,污染物通过截留过滤、物理和化学吸附以及生物作用被去除。通过阐明各结构层除污的情况为透水混凝土的应用提供了理论依据。By using the artificial simulator of rainfall and the permeable concrete pavement system,the pollutants removal efficiency by three structural layers of permeable concrete pavement system was studied. The results showed that the pollutants removal rates by the surface layer and the porous stabilized cement layer of permeable concrete pavement was 30% ~ 50% and15% ~ 30%,respectively. However,the pollutants removal rate by the dense graded aggregate base layer was lower than10%. According to the analysis,except for the dense graded aggregate base layer,both the surface layer and the porous stabilized cement layer were porous medium and coated by cement components. So it was supposed that in addition to interception of filter media and biological function,the runoff pollutants removal mechanism was mainly dominated by physical and chemical adsorptive performance of cement. Therefore,by exploring the respective pollutants removal effect of each layer,it provided a theoretical basis for the application of permeable concrete pavement.

关 键 词：透水混凝土路面 污染物削减 铺装结构 

分 类 号：X52[环境科学与工程—环境工程]