원문정보
A Study on the Present Corrosion Status of Sewage facilities in Hospital
초록
영어
Sewage facilities are essential social overhead capital facilities for removal of rainwater and sewage, further prevention of health and environment in modern life. So, recently, government executes a survey and an example work to maintain the sewage pipe to the optimum condition.
Most of the sewage facilities mainly consisted of concrete are rapidly corroded than ground structures because it is exposed to high humidity, carbon dioxide and various pollutants, and undergone external pressure such as soil pressure, water pressure, live load and so on. In actuality, sewage facilities concrete is complexly corroded by those factors. And biochemical corrosion that cement hydrate react to sulphuric acid made by sulfur-oxidizing bacteria is the main corrosion factor in those.
So, in this study, a review of the following aspects of concrete deterioration on the sewage treatment systems in hospital was presented. Sewage treatment system was deteriorated by harmful materials, for example soil, wastewater, pollutant air, etc. but it clearly appeared that this study did not contain other condition except for wastewater.
목차
1. 서론
2. 하수처리시설 구조물 콘크리트의 주요열화 메커니즘
2.1. 생화학적 부식
2.2. 중성화
3. 부식현황 조사계획 및 방법
3.1. 조사계획
3.2. 측정 방법
4. 측정결과 및 고찰
4.1. 표면오염
4.2. 황화수소 농도
4.3. 중성화 성상
5. 결론
참고문헌