透水沥青路面光触媒材料涂覆层汽车尾气降解效率试验研究  

Experimental Study on Degradation Efficiency of Photocatalyst Coating on Permeable Asphalt Pavement against Automobile Exhaust

作　　者：张国军 徐亦冬[2] 陈伟[2] 韩添池 陈坚钢 陆磊 龚嘉诚 徐诗源 ZHANG Guojun;XU Yidong;CHEN Wei;HAN Tianchi;CHEN Jiangang;LU Lei;GONG Jiacheng;XU Shiyuan(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,Zhejiang,China;Ningbo GUTETONG Concrete Limited,Ningbo 315111,Zhejiang,China)

机构地区：[1]重庆交通大学土木工程学院,重庆400074 [2]浙江大学宁波理工学院,浙江宁波315100 [3]宁波固特砼混凝土有限公司,浙江宁波315111

出　　处：《路基工程》2019年第5期89-93,115,共6页Subgrade Engineering

基　　金：浙江省自然科学基金项目(LY16E020014);宁波市自然科学基金项目(2016A610217)

摘　　要：利用尾气分析浓度测试仪测量汽车所释放的尾气,通过分析仪测试所得到透水沥青路面光触媒涂覆层对汽车尾气降解,并对其渗水性能进行试验。探索纳米TiO2光触媒材料对汽车尾气降解效率的问题。研究结果表明:纳米TiO2光触媒溶液中只有纳米TiO2对汽车尾气有降解作用;随着时间的递增,这种材料的降解效率逐渐增加,并且在105分钟中的降解效率变化率最高;纳米TiO2光触媒材料在纳米二氧化钛/硅丙乳液为30%及其纳米TiO2光触媒材料涂覆量为30g/900 cm^2时,其降解效率最高;在透水沥青混合料表面涂敷这种材料,对透水沥青混合料的渗水性能影响很小。Automotive emission tester was used to detect the vehicle exhaust and,through the testing,it was found that photocatalyst coating on permeable asphalt pavement may cause the exhaust to be degraded,and then its water permeability was tested.Herein the degradation efficiency of nano-TiO2 photocatalyst material against vehicle exhaust was explored.The study result shows that,in nano-TiO2 photocatalyst solution,only nano-TiO2 plays the role of degradation against vehicle exhaust;as time goes by,the degradation efficiency of this material enhances gradually,and will reach maximum rate of change after 105 min degradation;the nano-TiO2 photocatalyst material is of most degradation efficiency when the nano-TiO2/silicon acrylic emulsion is 30%and the coating amount is 30g/900cm ^2;while this material is coated on permeable asphalt mixture,there has minor effect on the water permeability of the mixture.

关 键 词：透水沥青路面 光触媒涂覆层 尾气降解效率 TiO2比例 涂覆量 渗水系数 

分 类 号：U414.1[交通运输工程—道路与铁道工程]