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Experimental Study on Capacity Variation of Paving Materials with TiO2 in Wet Condition
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 Title & Authors
Experimental Study on Capacity Variation of Paving Materials with TiO2 in Wet Condition
Seo, Dawa; Yun, Tae Sup;
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 Abstract
This study aims to present the practical Nitrogen monoxide (NO) removal capacity of cement mortar with Titanium dioxide () which is one of the paving materials by considering the environment of pavement in urban areas. NO removal capacity test under designated conditions of humidity of inflow gas and the test with variation of the degree of saturation of specimen were conducted. In the test for humidity, dry specimen is subject to the test and NO removal ratio was observed. Humidity-NO removal ratio curve is a log normal distribution in shape, and the maximum NO removal ratio appears at specific humidity. NO removal capacity test relying on the degree of saturation was carried out with wet specimen to reflect the unsaturated pavement by rainfall and domestic sewage. Wet specimen presents less NO removal capacity than dry specimen and the recovering evolution of NO removal capacity follows evaporation. Moreover, under the specific depth of specimen hardly contributes to NO removal capacity.
 Keywords
Functional paving material;Titanium dioxide;Nitrogen oxide;Unsaturated condition;
 Language
Korean
 Cited by
 References
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