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Geomechanics and Engineering
  Volume 19, Number 4, November20 2019, pages 361-368

Study on the characteristics of grout material using ground granulated blast furnace slag and carbon fiber
Daehyeon Kim and Kyungho Park

    This study aims to evaluate the applicability of a grout material that is mixed with carbon fiber, biogrout, ground granulated blast furnace slag (GGBS) powder and cement. Uniaxial compressive strength tests were performed on homo-gel samples at days of 1, 3, 7, 14 and 28. In addition, the variation of permeability with the mixing ratios was measured. Based on the uniaxial compressive strength test, it was confirmed that the uniaxial compressive strength increased by 1.2times when carbon fiber increased by 1%. In addition, as a result of the permeability test, it was found that when the GGBS increased by 20%, the permeability coefficient decreased by about 1.5times. Therefore, the developed grout material can be used as a cutoff grouting material in the field due to its strength and cut-off effect.
Key Words
    cutoff grout; carbon fiber; biogrout; ground granulated blast furnace slag; homo-gels
Daehyeon Kim and Kyungho Park: Department of Civil Engineering, Chosun University, 309 Philmoondae-ro, Dong-gu, Gwangju, 61452, Republic of Korea

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