@Article{jrm.2022.017545,
AUTHOR = {Shoujing Yan, Yangyang Wang, Fengxia Chi, Xue Luo, Tianjie Zhang, Chenchen Xi},
TITLE = {Study on Air-Purifying Performance of Semi-Flexible Asphalt Samples Coated with Titanium Dioxide Using Different Methods},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {10},
YEAR = {2022},
NUMBER = {5},
PAGES = {1321--1335},
URL = {http://www.techscience.com/jrm/v10n5/46046},
ISSN = {2164-6341},
ABSTRACT = {Titanium dioxide (TiO<sub>2</sub>) was recently employed to apply onto road surfaces to degrade the harmful compounds from vehicle emissions. However, it remains a challenging task to find a highly compatible pavement type for TiO<sub>2</sub> application to achieve durable and efficient air-purifying performance. This study proposed to coat TiO<sub>2</sub> particles onto semi-flexible pavement surface and tried to investigate an optimum coating method. Three coating methods, including direct mixing TiO<sub>2</sub> (MT) with asphalt mixture, spraying dry TiO<sub>2</sub> (ST) coating and water-solution-based TiO<sub>2</sub> (WT) coating on semi-flexible pavement surface. To achieve this objective, semi-flexible samples were prepared to evaluate and compare the performances of three coating methods by employing resistance to wearing, NO removal efficiency tests and residual texture depth tests. It was found that the ST method not only provided better NO degrading efficiency but also improved the resistance to wearing than the other two methods.},
DOI = {10.32604/jrm.2022.017545}
}