Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2005.03a
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- Pages.1291-1298
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- 2005
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.)
- Published : 2005.03.25
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.