江苏大学学报（自然科学版）2017，Vol.38Issue(1)：113-118,6.DOI:10.3969/j.issn.1671-7775.2017.01.020
Ti O2改性乳化沥青薄层罩面的净化性能
Purification performance of thin layer cover of TiO2 modified asphalt
摘要
Abstract
Based on the catalyzed decomposition ability of nano-TiO2 ,the thin layer cover of nano-TiO2 modified asphalt was put forward,and the index system of cumulative decomposition and catalytic performance was defined.A test instrument was developed,and the effects of TiO2 powder size,TiO2 content,layer thickness,temperature and irradiance on indicator changing trends and influencing degrees were analyzed to determine,the optimal scheme of thickness and content.The results show that when the TiO2 size is 25 nm with TiO2 content of 1 0%,the cumulative rate of decomposition and the catalytic efficiency index reach the maximum values.With the increasing of temperature and irradiance intensity, the performance of decomposition is improved markedly.When the spray volume is increased,the total gas decomposition is increased with latter stable,while the efficiency is decreased.To obtain good durability performance,the scheme of material parameters is recommended with TiO2 dosage of 8.5%and thickness of 1 5 .0 mm.关键词
薄层罩面/尾气降解/纳米TiO2/路面材料/耐久性能Key words
thin layer cover/tail gas decomposition/nano-TiO2/pavement material/durability performance分类
交通工程引用本文复制引用
吴平,王选仓..Ti O2改性乳化沥青薄层罩面的净化性能[J].江苏大学学报（自然科学版）,2017,38(1):113-118,6.基金项目
交通运输部建设科技项目 （）
