Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Development of High Strength Concrete for the Sleepers of High Speed Rail

고속철도 침목용 고강도콘크리트의 개발

  • 백상현 (쌍용중앙연구소 콘크리트연구실 연구원) ;
  • 엄태선 (쌍용중앙연구소 콘크리트연구실 책임연구원(공학박사)) ;
  • 곽천탁 (쌍용양회(주) 건자재사업팁 과장(건축사)) ;
  • 정재현 (쌍용양회㈜ 건자재사업팀) ;
  • 박종방 (쌍용양회(주) 건자재사업팀 사원) ;
  • 김인재 (한국고속철도공단 궤도국 공사부 과장(기술사))
  • Published : 1998.04.01
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Abstract

In the present, we have developed high strength concrete for the sleepers of high speed rail and verified its applicability by in-situ applications. Concrete for sleepers is manufactured by steam curing at low temperature(below 55$^{\circ}C$), and should be finished its manufacturing process such as placing, curing, demolding and prestressing in 24 hours. The sleepers need its compressive strength above 350kg/$\textrm{cm}^2$ in 15 hours, air-entrainment for durability and nominal design strength of 600kg/$\textrm{cm}^2$, considering its quality variation at factory. We performed the optimum mix design of concrete and verified the rightness of the use of TYPE III cement. Finally, we have confirmed the manufactured sleepers satisfy the required material properties through in-situ application.

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