• Korean Architects
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• no.9 s.91
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• pp.37-52
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• 1976

• The Safety technology
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• no.161
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• pp.15-17
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• 2011

한전산업개발(주)은 1992년부터 전국 발전소 석탄취급설비 운전업무를 시작한 이래 회처리 설비 운전, 진용철도, 운영, 석탄취급설비 정비에 이르기까지 다양한 업무를 담당하고 있다. 오랜 Know-how와 축적된 기술경험을 바탕으로 1998년 국내 최초로 탈황설비 운전을 수행하는 등 지금까지 환경친화산업을 펼쳐나가는 전문회사로 국가 기간산업에 일익을 담당하고 있다. 동양의 나폴리라 불리우는 전남 여수시에 소재한 한전산업개발 호남사업소(소장 최환호)도 호남화력 발전처 내에 위치하면서 여수국가 산업단지와 인근지역에 안정적인 전력을 공급하는데 중요한 역할을 담당하고 있다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.10 no.1
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• pp.115-123
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• 1990

The purpose of this study was to examine the uses of coal ash as a type of construction material. The methods of examination were chemical anlysis, soil laboratory test and the soil vibration test. Materials used were coal ash obtained as a by-product from 5 thermal power plants in Yongdong, Yongwol, Sochon(anthracite coal) and in Samchonpo and Honam (bituminous coal). Over 70% of the coal ash consisted of silica and alumina. The fly ash grain size showed a uniform distribution from fine-sand to silt, and that of the bottom ash showed from sand to gravel. The specific gravity and density of the coal ash were low. The long term strength increased gradually due to the self-setting property resulting from pozzolanic activity. The shear strength was higher than that of general soil. Cohesion and optimum moisture content of anthracite coal ash were higher than bituminous coal ash, whereas the maximum dry density was higher in bituminous coal ash. The coal ash dynamic Young's modulous curve range was similar to that of general soil. Of the results from the soil vibration test by car-running, the size relative acceleration level in the ash pond was higher than that of natural ground, but the damping ratio was lower than that of natural ground near the ash pond. The coal ash has more advantageous engineering properties than general soil with particles of the same size. For example, the California Bearing Ratio of the bottom ash at both Yongdong and Yongwol was 77~137%. Therefore we expect that if further study is done, coal ash can be used as a construction material when reclaiming seashore, construction embankments, road construction, making right-weight aggregate, or as a general construction material.