NOx Removal of Pervious Concrete Pavement Materials with TiO2 †

초록

Various studies have been conducted on reducing NO_x emissions; titanium dioxide (TiO₂) is widely used to reduce NO_x in the air. This study proposes a method for exploiting the advantages of photocatalytic technology and water permeability to reduce NO_x emissions. The study comprises porosity, water permeability coefficient, compressive strength, and NO_x removal experiments. Based on the experiments, an optimum mix proportion is suggested. The results revealed that the NO_x removal effect is greater for variables with higher porosity. The removal is further enhanced by the use of siloxane, which hardens the surface of the TiO₂-incorporated cementitious materials in the mixture. © 2023 by the authors.

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