지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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PURPOSES : About 35% of air pollutant is occurred from road transport. NOx is the primary pollutant. Recently, the importance of NOx removal has arisen in the world. $TiO_2$ is very efficient for removing NOx by photocatalytic reaction. The mechanism of removing NOx is the reaction of photocatalysis and solar energy. Therefore, $TiO_2$ in concrete need to be contacted with solar radiation to be activated. In general, $TiO_2$ concrete are produced by substitute $TiO_2$ as a part of concrete binder. However, 90% of $TiO_2$ in the photocatalysis can not contacted with the pollutant in the air and solar radiation. Coating and penetration method are attempted as the alternative of mixing method in order to locate $TiO_2$ to the surface of structure. METHODS : The goal of this study was to attempt to locate $TiO_2$ to the surface of concrete, so we can use the concrete in pavement construction. The distribution of $TiO_2$ along the depth were confirmed by basing on the comparison of $TiO_2$ compare by using the EDAX(Energy Dispersive X-ray Spectroscopy). RESULTS : $TiO_2$ were distributed within 3mm from concrete surface. This distribution of $TiO_2$ is desirable, since the $TiO_2$ induce photocatalysis are located to where they can be contacted with the air pollutant and solar radiation. CONCLUSIONS : Nano size $TiO_2$ is easily penetration in the top 3mm of concrete surface. By the penetration $TiO_2$ concrete can be produced with the use of only 10% of $TiO_2$, by comparing the mixing types.
목차
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참고문헌 (8)
참고문헌 신청
Lee H. S / 2005 / The Environmental Problem and Environmental Friendly Method Involving Concrete / Journal of the Korea Concrete Institute 17(4):8~10
Kim H. J. / 2000 / Development of Materials to remove Nitrogen Compounds (NOx) of Cement / Conference of Cement Association 153:50~54
K. Takeuchi / 2000 / The World of Photocatalytic / daeyoungsa
2009 / National Air Pollutants Emission 2007
Lee W. A / 2001 / A Study on the Development for Photocatalytic Concrete with Waste Gas Reduction and Self-cleaning / Conference of Korea Concrete Institute :265~270
Kim H. J. / 2000 / Development of Materials to remove Nitrogen Compounds (NOx) of Cement / Conference of Cement Association 153:50~54
K. Takeuchi / 2000 / The World of Photocatalytic / daeyoungsa
2009 / National Air Pollutants Emission 2007
Lee W. A / 2001 / A Study on the Development for Photocatalytic Concrete with Waste Gas Reduction and Self-cleaning / Conference of Korea Concrete Institute :265~270
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