Journal of the Korean Geosynthetics Society (한국지반신소재학회논문집)

Korean Geosynthetics Society (한국지반신소재학회)
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A Study of Field Mixing Ratio using Bio-grouting Injection Material

바이오그라우팅 주입재를 이용한 현장 배합비에 관한 연구

  • Park, Ilehoon (School of Civil and Environmental Engineering, Geotechnical and Study, Chosun Univ.) ;
  • Kim, Daehyeon (School of Civil and Environmental Engineering, Geotechnical and Study, Chosun Univ.)
  • Received : 2017.03.23
  • Accepted : 2017.06.13
  • Published : 2017.06.30
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Abstract

This study aims to develop a bio-grouting material in a powder form like cement. Sand gel samples were produced with the ratio of sodium silicate No.3 to water (50 : 50, 35 : 65, 20 : 80), and the ratio of cement to bio-grouting material (100 : 0, 90 : 10, 70 : 30) to select a mixing ratio of bio-grouting, respectively, and then analyzed the geltime over time. The uniaxial compressive strength was evaluated to select and suggest a mixing ratio optimized for construction conditions. The indoor test reveals that preferred geltime and uniaxial compressive strength is obtained in 35 : 65 with respect to the ratio of sodium silicate No.3 to water, and 90 : 10 with respect to the ratio of cement to bio-grouting material to demonstrate best optimal mixing ratios.

본 연구에서는 바이오주입재를 시멘트와 같은 분말 형태로 주입재를 개발하였다. 바이오그라우팅의 배합비를 선정하기 위해 규산소다 3호 : 물의 비율(50 : 50, 35 : 65, 20 : 80), 시멘트 : 바이오주입재의 비율(100 : 0, 90 : 10, 70 : 30)로 각각 샌드겔 공시체를 제작하여 시간 경과에 따른 geltime을 분석하였다. 그리고 geltime에 따른 일축압축강도를 평가하여 시공조건에 맞는 배합비를 선정할 수 있도록 제시하였다. 실내실험 결과, 규산소다 3호 : 물의 비율이 35 : 65, 시멘트 : 바이오주입재의 비율이 90 : 10일 때 겔타임과 일축압축강도가 잘 나타나 적정한 최적배합비로 확인하였다.

Keywords

References

  1. Dejong, J. T., Fritzges, M. B., and Nusslein, K. (2006). "Microbially Induced Cementation to Control Sand Response to Undrained Shear", Journal of Geotechnical and Geoenvironmental Engineering, Vol.132, No.11, pp.1381-1392. https://doi.org/10.1061/(ASCE)1090-0241(2006)132:11(1381)
  2. Dejong, J. T., Mortensen, B. M., Martinez, B. C., and Nelson, D. C. (2010), "Bio-mediated Soil Improvement", Journal of Ecological Engineering, Vol.36, pp.197-210. https://doi.org/10.1016/j.ecoleng.2008.12.029
  3. Jeon, S. J. (2013), Effect of Strength Evaluation of Soil Treated with Calcium Carbonate Created by Microbial Reaction, Master Degree, Chosun University, Gwangju, Korea.
  4. Kim, D. H., Park, K. H., Kim, H. C., and Lee, Y. H. (2012), "Effect of Microbial Treatment Methods on Biogrout, Journal of Geotechnical and Geoenvironmental Engineering, Vol.13, No.5, pp.51-57.
  5. Kim, D. H. and Park, K. H. (2013), "Injection Effect of Bio-Grout for Soft Ground", Advanced Science Letters, Vol. 19, pp.468-472. https://doi.org/10.1166/asl.2013.4757
  6. Kim, D. H., Park, K. H., and Kim, D. W. (2014), "Effects of Ground Conditions on Microbial Cementation in Soils", Materials, Vol.7, pp.143-156.
  7. Kim, D. H., Sagong, M., and Park, K. H. (2013), "Improvement Method of Sand Ground Using an Environmental Friendly Bio Grouting Material", Journal of the Korean Society for Railway, Vol.16, No.6, pp.473-481. https://doi.org/10.7782/JKSR.2013.16.6.473
  8. Kim, D. S. and Noh, J. S. (2000), "Characteristic of Cement Mortar addition $CaCO_3$", Korea Concrete Institute Symposium, pp.14-20.
  9. Lee, K. H. (2013), A Study of Injected Material for Tunnel Enforcement Using Slag Cement, Ph. D. thesis, Baejae University, Daejeon, Korea.
  10. Nordin, N., Wong, L. S. and Regunathan, P. (2015), "A Review on The Compressive Strength of Biomineralized Mortar", The 3rd National Graduate Conference Univ. Tenaga Nasional, Malaysia, 8-9 April, pp.234-239.
  11. Paassen, L. A., Harkes, M. P., Zwieten, G. A., Zon, W. H., Star, W. R. L., and Loosdrecht, M. C. M. (2009), "Scale Up of Biogrout: A Biological Ground Reinforcement Method", Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering, pp.2328-2333.
  12. Park, K. H. (2015), Evaluation of Applicability of Environment Friendly Biogrouting Methods in Loose Frictional Soils, Ph. D. thesis, Chosun University, Gwangju, Korea.
  13. Park, K. H., Jun, S. J., and Kim, D. H. (2014), "Effect of Strength Enhancement of Soil Treated with Environment-Friendly Calcium Carbonate Powder", The Scientific World Journal, Vol.2014, pp.1-11.
  14. Park, K. H. and Kim, D. H. (2012), "Verification of Calcium Carbonate by Cementation of Silt and Sand using Bacteria", Journal of the Korean Geotechnical Society, Vol.28, No.6, pp.53-61. https://doi.org/10.7843/kgs.2012.28.6.53
  15. Park, K. H. and Kim, D. H. (2013), "Strength and Effectiveness of Grouting of Sand Treated with Bacteria", Journal of the Korean Geotechnical Society, Vol.29, No.2, pp.65-73. https://doi.org/10.7843/kgs.2013.29.2.65
  16. Park, K. H. and Kim, D. H. (2016), "Analysis of Homogel Uniaxial Compression Strength on Bio Grouting Material", Materials 2016, Vol.9, pp.1-12.
  17. Pedreira, R. (2014), "Bio-cementation of Sandy Soils for Improving their Hydro-mechanical Characteristics", Geotechnique, Vol.64, No.12, pp.1-5. https://doi.org/10.1680/geot.12.P.141
  18. Reddy, L., Manjusha, A. and Arun kumar, M. (2015), "Bio Cement - An Eco Friendly Construction Material", International Journal of Current Engineering and Technology, Vol.5, pp.1-4. https://doi.org/10.14419/ijet.v5i1.5155
  19. Soon, N. G., Lee, L. M., Khun, T. C., and Ling, H. S. (2013), "Improvements in Engineering Properties of Soils through Microbial-Induced Calcite Precipitation", KSCE Journal of Civil Engineering, Vol.17, No.4, pp.718-728. https://doi.org/10.1007/s12205-013-0149-8
  20. Varalakshmi and Devi, A. (2014), "Isolation and Characterization of Urease Utilizing Bacteria to Produce Biocement", IOSR Journal of Environmental Science, Vol.8, No.4, pp.52-57.