Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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A Study on the Watertightness of Shotcrete with Watertightness Materials

수밀성 재료에 의한 숏크리트의 수밀성에 관한 연구

  • Kang, Hyun-Ju (Research Institute of Chemical Engineering, Kangwon National University) ;
  • Song, Myong-Shin (Research Institute of Chemical Engineering, Kangwon National University) ;
  • Lee, Sang-Kook (Korea Institute of Nuclear Safety)
  • 강현주 (강원대학교 화학공학연구소) ;
  • 송명신 (강원대학교 화학공학연구소) ;
  • 이상국 (한국원자력 안전기술원)
  • Published : 2008.06.30
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Abstract

The use of shotcrete-sprayed concrete for the support of underground excavations was pioneered by the civil engineering. Now, for the nuclear wastes disposal plant in our country, watertightness of shotcrete is one of the very important properties. This study evaluated the watertightness of shotcrete using cement mineral accelerator with watertightness materials for the long-term watertightness. In this study, for improvement of watertightness of shotcrete, it used two types of obtainable at a store. Watertightness tests of shotcrete were performed the water absorption coefficient, permeability, porosity and hydrates variation. In a shotcrete containing watertightness materials, watertightness of shotcrete was improved about $15%{\sim}65%$ rather than plain shotcrete.

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References

  1. E. Grove., "Active Design in Tunnelling with Sprayed Concrete as a Permanent," Inter. Conf on Eng., Developments in Shotcrete, Australia, 123-33 (2001)
  2. H. G. Park, "Performance of Wet-Mixed Shotcrete with Powder Types Cement Mineral Accelerator," KSCE J. Civil. Eng., 24 [IC] 65-9 (2004)
  3. J.-P. Won, "Durability Characteristics of High Performance Shotcrete for Permanent Support of Large Size Underground Space," J. Kor. Concr. Ins., 19 [6] 45-55 (2007) https://doi.org/10.4334/JKCI.2007.19.6.701
  4. S. K. Oh, "Phenomena and Solutions of Concrete for Water Proofing," J. Kor. Concr. Ins., 6 [2] 40-51 (1994)
  5. A. S. El-Dieb and R. D. Hooton, "Water-permeability Measurement of High Performance Concrete using a High-pressure Triaxial Cell," Cem. Concr. Res., 25 [6] 3199-208 (1995)
  6. Kim, Jae On, "Changes in Hydration and Watertightness of Cement Containing Two-Component Fluosilicate Salt Based Chemical Admixture," J. Kor. Ceram. Soc., 40 [10] 749-55 (2004)
  7. A. S. El-Dieb and R. D. Hooton, "A High Pressure Triaxial Cell with Improved Measurement Sensitivity for Saturated Water Permeability of High Performance Concrete," Cem. Concr. Res., 24 [5] 854-62 (1994) https://doi.org/10.1016/0008-8846(94)90005-1
  8. G. W. Scherer, "Measuring Permeability of Rigid Materials by a Beam-bending Method: 1. Theory," J. Am. Ceram. Soc., 83 [9] 2231-39 (2000) https://doi.org/10.1111/j.1151-2916.2000.tb01540.x