한국해양대학교

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철근 콘크리트 구조물용 다기능 멀티센서의 부식 모니터링에 관한 연구

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dc.contributor.author 경은진 -
dc.date.accessioned 2017-02-22T07:06:44Z -
dc.date.available 2017-02-22T07:06:44Z -
dc.date.issued 2012 -
dc.date.submitted 56989-07-02 -
dc.identifier.uri http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002175946 ko_KR
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/10281 -
dc.description.abstract This study presents the result of the corrosion monitoring with the use of monitoring sensors in various conditions. Experimental tests were carried out on reinforced concrete structures to verify the applicability of a multi-functional sensor. Single-functional sensors, which could measure potential and current, were also used to compare with multi-function sensor’s data. Measured factors were corrosion potential, resistivity, and corrosion rate. Results have shown, at least under the present testing conditions, that the multi-functional sensor plays an important role in an understanding of corrosion severity. In addition, corrosion monitoring data collected by these sensors were also analyzed. The results of these tests were as follows -
dc.description.abstract however, it is hard to judge the corrosion quantitatively. 3. Due to the fact that galvanic current could not be measured under small potential difference between anode and cathode, other criteria such as potential, corrosion rate, and concrete resistivity were needed to understand corrosion inclination. 4. It was difficult to judge corrosion accurately by using resistivity measurement. The resistivity measurement is a useful additional measurement to aid in identifying problem areas, and give the capacity of the concrete to allow corrosion. 5. In correlation between corrosion rate and potential, potential was decreased according to the increment of corrosion rate. From the above results, when carrying out a survey of reinforced concrete structure by monitoring with corrosion sensor, it is hard to diagnose a corrosion problem with only one parameter which including some errors. Therefore, in order to minimize errors and obtain more accurate results, entire corrosion diagnosis should be applied. In other words, the application of multi-functional corrosion sensor to collect available information and minimize measurement problems can know the status of quantitative corrosion. -
dc.description.abstract 1. Reinforced concrete specimens were tested in four kinds of environmental conditions (Air, Fresh water, 3% salt water, 15% salt water). The more severe circumstance was (15% salt water, 3% salt water, Fresh water, and Air conditions), the more active inclination corrosion rate was. 2. Corrosion potential measurements could be a qualitative corrosion judgment -
dc.description.tableofcontents Abstract 제 1 장 서 론 1.1 연구 배경 및 목적 1.2 연구 내용 제 2 장 이론적 배경 2.1 철근 콘크리트의 균열 2.1.1 콘크리트의 균열 발생 기구 2.1.2 철근 콘크리트 구조물의 철근 부식 메커니즘 2.1.3 콘크리트 구조물의 철근 부식의 영향 2.2 철근 콘크리트의 부식 모니터링의 중요성 2.3 철근 콘크리트의 부식 모니터링 방법 2.4 철근 콘크리트의 부식 모니터링을 위한 다기능 센서 2.4.1 부식 모니터링 센서 2.4.2 부식 모니터링 센서의 기능별 종류 및 특성 2.4.3 부식 모니터링 센서의 한계 제 3 장 실험 방법 3.1 시험편 3.1.1 구조 및 제작 3.1.2 실험 조건 3.2 실험 장치 3.2.1 항온·항습조 3.2.2 멀티미터 및 기준전극 3.2.3 비저항 측정기 및 분극 시험 장치 3.3 실험 측정 3.3.1 철근 전위 측정 3.3.2 콘크리트 비저항 측정 3.3.3 갈바닉 전류 측정 3.3.4 부식 속도 측정 제 4 장 실험결과 및 고찰 4.1 부식 속도 비교 4.2 부식 전위 비교 4.2.1 3% 염수 환경 시험편의 철근 전위 비교 4.2.2 15% 염수 환경 시험편의 철근 전위 비교 4.2.3 40℃ 15% 염수 환경 시험편의 철근 전위 비교 4.2.4 40℃ 환경 조건별 시험편의 깊이 4cm 철근의 전위 비교 4.3 갈바닉 전류 밀도 비교 4.4 콘크리트 비저항 비교 4.5 부식 속도 및 센서의 작동 전극 전위 비교 제 5 장 결 론 참고 문헌 -
dc.language kor -
dc.publisher 한국해양대학교 -
dc.title 철근 콘크리트 구조물용 다기능 멀티센서의 부식 모니터링에 관한 연구 -
dc.title.alternative A study on corrosion monitoring of multi-functional sensor for reinforced concrete structures -
dc.type Thesis -
dc.date.awarded 2012-08 -
dc.contributor.alternativeName Kyoung Eun Jin -
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