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A Study on Basic Properties of the Reinforced-roadbed Material Using Water Quenched Blast Furnace Slag  

이선복 (동부건설㈜ 토목설계팀)
윤지선 (인하대학교 환경토목공학부)
Publication Information
Journal of the Korean Geotechnical Society / v.19, no.1, 2003 , pp. 103-110 More about this Journal
Abstract
The development of reinforced-roadbed material in substitute for existing roadbed is necessary to protect its failure from the dynamic stress and vibration caused by the traveling of the high-speed and heavy trains. The water quenched blast furnace slag having potential hydraulic reactivity is one of the materials in substitute for soil reinforced-roadbed. We carried out the study of basic properties of roadbed material using Portland cement and CSA(calcium sulphoaluminate) as the activator for the evaluation of its application. As the result of the strength test, this material satisfied design criterion for reinforced-roadbed. Optimum mixing ratio of this reinforced-roadbed material was 15 ~ 17.5 percent of cement and 2.5 percent of CSA by weight of the blast furnace slag. Especially, as permeability is above $10^{-3}$cm/sec, this material proved to have functions of both reinforced roadbed and drainage layer.
Keywords
Reinforced roadbed; Water quenched blast furnace slag;
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  • Reference
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[ 권중현 ] / 고로슬래그 골재 콘크리트에 관한 실험적 연구
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[ 허남환 ] / 수재품질에 미치는 냉각수 공급조건의 영향, 산업과학기술연구소 연구논문
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