水库淤泥资源化应用于多孔沥青混凝土的研究  

Research of Reservoir Silt on the Properties of Porous Asphalt Mixture

作　　者：汪耀武[1] 

机构地区：[1]咸宁职业技术学院,湖北咸宁437000

出　　处：《公路工程》2016年第6期283-288,共6页Highway Engineering

基　　金：重庆市交通科技进步计划项目(201502014)

摘　　要：研究借由改性水库淤泥的憎水特性,改善排水级配受水分侵害的影响,故将其作为填充料添加于排水性沥青混凝土中,并分别与石粉、水泥等填充料制作成的马歇尔试件进行性能试验与分析。从试验结果可以看出:添加改性水库淤泥、石粉与水泥等填充料的试件透水能力相同,并无随着填充料种类变化而造成差异。在力学性质试验方面,添加改性水库淤泥的试件强度稍弱于添加石粉、水泥的试件强度。而残余强度试验(TSR)中,3种填充料在第1天试验结果相同,但随着浸泡天数渐渐拉长,添加改性水库淤泥的试件TSR值大于其他两者,并在第10天维持60%以上的强度,显示改性水库淤泥在抵抗水侵害的表现较佳,能有效提升路面的抗水侵害能力。This study modified by hydrophobic properties of the reservoir silt, improve drainage gradation is influenced by water enroach on, so as a filling material added in drainage asphalt concrete, and respectively with stone powder, such as filling material, cement production of Marshall specimen for performance testing and analysis. Can be seen from the results, adding modified reservoir filling material such as mud, stone and cement specimens of permeable ability are the same, no change as filling material type and cause difference. In terms of mechanical properties test, add modified reservoir silt specimen strength was slightly weaker than adding powder, the strength of the cement specimen. （TSR） and the residual strength test, the test result is the same three kinds of fillers in 1 day, but as the days gradually elongated, immersing add modified reservoir silt specimen （TSR） value is greater than the other two, and maintain more than 60% of the strength in the 10th day, show modified reservoir silt do better in the resistance to water enroach on, can effectively improve ability to resist water enroach on the road.

关 键 词：改性水库淤泥 多孔沥青混合料 路用性能 资源利用 

分 类 号：U414.1[交通运输工程—道路与铁道工程]