Zhengxian Yang
Transportation causes major emissions of harmful gases (NOx, CO) and volatile organic compounds (VOCs). These pollutants could travel long distances to produce secondary pollution such as acid rain, threatening the durability of concrete infrastructure and vegetation. Concrete exposed to atmospheric pollutants and/or deicing salts has high risks of rebar corrosion and cracking and thus may fail prematurely. To address these environmental and concrete durability issues. A novel systematic strategy, particularly, a new multifunctional cementitious coating system towards air-purifying, corrosion resistant and self-healing concrete infrastructure will be developed based on synergistic activities of photocatalytic titanium oxide (TiO2), layered Double Hydroxides (LDHs) and synthetic microcapsules.
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