• Title/Summary/Keyword: 이스트

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확대 서평-스펜스 "천안문", 이스트만 "중국사회의 지속과 변화"

  • Hwang, Hui-Gyeong
    • The Korean Publising Journal, Monthly
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    • s.254
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    • pp.28-28
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    • 1999
  • 스펜스의 "천안문"은 고난에 찬 중국현대사를 마치 한편의 소설이나 영화처럼 생생하게 소개한 저작이다. 이 책이 지식인 중심으로 지난 백년간의 중국혁명을 서술했다면, 이스트만의 "중국사회의 지속과 변화"는 4세기에 걸친 근대 시기의 사회 경제사를 추적한다.

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The Development of Steel-plate Concrete Panels with Preplaced Lightweight Aggregates Concrete (프리플레이스트 경량골재 콘크리트를 사용한 합성형 구조모듈 제작 및 성능 평가)

  • Yoon, Jin Young;Kim, Jae Hong
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.5 no.1
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    • pp.21-28
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    • 2017
  • The steel-plate concrete(SC) is used in a form of module assembly construction in the outer wall of nuclear-power plant and LNG containment. Since the steel-plate concrete modules are generally manufactured from the plant, the weight of SC has significantly effect on the total construction cost in the aspect of shipment. Therefore, the use of lightweight aggregates concrete(LWAC), which fill the inside of SC module can be a solution. However, the amount of used lightweight aggregates(LWA) is limited in the use of current concrete mixing process due to the concrete quality problems and it also determines the allowable minimum density of LWAC. In this research, the preplaced casting method is applied because of increasing the volume fraction of LWA significantly, which results from the producing process of pre-packing the LWA in the formwork and filling the interstitial voids between LWA using cement paste grout. The density and compressive strength of selected preplaced LWAC were $1,600kg/m^3$ and 30MPa and it was applied for the mock-up specimens of SC panel. It was used for the 3-point bending test for evaluating its structural performance. The results show that the preplaced LWAC can reduce the density of concrete with the adequate mechanical and structural performance.

News Magazine

  • Korean Bakers Association
    • 베이커리
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    • no.6 s.395
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    • pp.150-153
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    • 2001
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재료색인

  • Korean Bakers Association
    • 베이커리
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    • no.6 s.383
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    • pp.104-105
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    • 2000
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