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为降低城市人口密集区域汽车尾气对市民健康的影响,提升空气质量,该文将TiO2应用到彩色防滑路面中,研究其对汽车尾气的降解效果及路用性能。试验结果表明:在最佳掺量为20g时,其对汽车尾气中的一氧化氮和碳氢化合物等气体,在太阳光下,实际降解率分别达到了27.20%和14.86%;对比掺入等量TiO2的彩色防滑试件与沥青混合料试件的实际降解效率,发现前者对一氧化氮和碳氢化合物实际降解效率分别是后者的3倍和1.5倍;TiO2的掺入对摆值、构造深度以及车辙变形没有影响,动稳定度略有变化。
In order to reduce the impact of vehicle tail gas on the health of urban residents in densely populated urban areas and improve the air quality, TiO2 is applied to colored non-slip pavement to study its degradation effect and road performance on automobile tail gas. The experimental results show that the actual degradation rate of the exhaust gas such as nitric oxide and hydrocarbon in the vehicle tail gas reaches 27.20% and 14.86% respectively under the sunlight when the optimum dosage is 20g; The actual degradation efficiency of the amount of TiO2 colored non-skid specimens and asphalt mixture specimens found that the former of the actual degradation efficiency of nitric oxide and hydrocarbons are the latter three times and 1.5 times; TiO2 doping value, Tectonic depth and rutting deformation have no effect, dynamic stability changes slightly.