광촉매 종류 및 혼입률에 따른 효율적 광촉매 콘크리트의 제조 방법에 관한 연구
Research on the Efficient Manufacturing Method of Photocatalyst Concrete according to the Type and Mixing Ratio of Photocatalyst
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본 연구에서 광촉매 종류 및 혼입율에 따른 역학적 특성 및 질소산화물 제거 특성을 평가하였고 보다 경제적이고 효율적인 광촉매콘크리트 제조를 위해 분할 타설하는 방법에 대해 검토하였다. 그 결과 광촉매 혼입률이 5%일 때 가장 높은 압축강도와 탄성계수가 측정되었다. 광촉매 반응에 의한 질소산화물 제거 성능평가 결과 광촉매 혼입률이 증가함에 따라 질소산화물 제거율이 증가하였다. 이때 광촉매 P-25의질소산화물 제거성능은 NP-A보다 우수하였다. 경제성을 고려하여 콘크리트 표면의 일정 두께를 광촉매 콘크리트로 타설하는 분할 타설 방안을 제안하였고, 이때의 일체화 성능을 평가하였다. 그 결과 역학적 성능 및 내구성능이 Plain에 비해 동등 이상으로 나타나 일체화 거동을 만족하는 것으로 판단된다.
Abstract
In this study, we evaluated the mechanical properties and nitrogen oxides removal characteristics according to the type and incorporationrate of the photocatalyst and investigated the method of separated placement for the production of economical and efficient photocatalyst concrete. Asa result, when the photocatalyst incorporation rate was 5%, the highest compressive strength and elastic modulus were measured. As a result of evaluatingthe nitrogen oxides removal performance by the photocatalytic reaction, as the photocatalyst incorporation rate increased, the nitrogen oxide removalrate increased. At this time, the nitrogen oxides removal performance of photocatalyst P-25 was better than the NP-A. In consideration of economicefficiency, we have provided a method of separated placement for casting a constant thickness of concrete surface with photocatalyst concrete andevaluated the integrated performance at this time. As a result, it appears to be equal to or higher than mechanical performance and durability performanceas compared with Plain, and it is judged that the integrated behavior is satisfied.
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