Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
권호 표지

Uniaxial Compressive Strength Characteristic of Shotcrete Immersed in Chemical Solution

화학적 침식에 의한 숏크리트의 압축강도 특성

  • Lee, Gyu-Phil (Geotechnical Engineering Research Dept., Korea Institute of Construction Technology) ;
  • Kim, Dong-Gyou (Geotechnical Engineering Research Dept., Korea Institute of Construction Technology) ;
  • Bae, Gyu-Jin (Geotechnical Engineering Research Dept., Korea Institute of Construction Technology) ;
  • Kim, Hong-Sam (Research Institute of Industrial Science, Hanyang Univ.)
  • 이규필 (한국건설기술연구원 지반연구부) ;
  • 김동규 (한국건설기술연구원 지반연구부) ;
  • 배규진 (한국건설기술연구원 지반연구부) ;
  • 김홍삼 (한양대학교 산업과학연구소)
  • Published : 2005.03.25
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Abstract

Shotcrete for the support of tunnel can contact with groundwater. The hazardous components in the groundwater cause the corrosion of shotcrete. Also, the hazardous components may deteriorate the engineering properties of shotcrete, such as compressive strength, bond strength, and flexural strength. The more the effect of the hazardous components on the shotcrete may increase, the more the stability of tunnel structure may decrease. It was analyzed to find the hazardous components in the ground water. The uniaxial compressive strength test, XRD, SEM were conducted to evaluate the durability and corrosion of shotcrete. These tests were performed on shotcrete specimens at 2, 4, 8, and 16 weeks. The specimens were immersed in various chemical solutions including hazardous components after the specimens were made at the construction site.

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