Effect of Urease Enzyme on Shear Strength of Clay Shale

  • Authors

    • Maxwel Joseph Henri Nainggolan
    • Wiwik Rahayu
    • Puspita Lisdiyanti
    2018-12-09
    https://doi.org/10.14419/ijet.v7i4.36.23909
  • stabilization, clay shale, urease enzyme, bio-cementation, consolidated undrained (cu), shear strength MSC. 65K10, 62P05, 94D05.

  • Abstract

    In recent years, utilization of biotechnology in geotechnical field has rapidly grown. One of the biotechnologies being utilized is urease enzyme, a stabilization material by bio-cementation method studied in this research.  Urease enzyme is manually mixed with additional 10% of clay soil to clay shale. The objective of mixing it is to increase the bearing capacity of the clay shale. Consolidated undrained triaxial test was performed for testing the soil strength performance for samples that had undergone curing for 2, 4, and 6 weeks. The results indicated that the sample stiffens, proved by the increase of shear strength from consolidated undrained triaxial test. The shear strength value produced by the variation of the urease enzyme mixture + 10% the clay is higher than that of without the original clay shale.

     

     

  • References

    1. I. M. Alatas and P. T. Simatupang, “Pengaruh proses pelapukan clay shale terhadap perubahan parameter rasio disintegritas (DR),†vol.24, no.1, pp. 77–82, April 2017.

      [2] D. A. V. Stow, " Fine-grained sediments: terminology," Q. J. eng. Geol. London, vol. 14, pp. 243-244, 1981.

      [3] T. Tobing, and A. Luthfi, "Engineering Geologic Map of Bogor Quadrangle, West Java 1209-1, scale 1:100.000," Directorate Enviromental Geology , Bandung, 1995.

      [4] I. A. Sadisun, R. D. Kartiko, A. Kesumaningtyas, T. E. Utami, and E. Sucipta, “Shear strength reduction of tertiary jatiluhur- subang claystones due to swelling processes,†Proceeding of 10th Asian Regional Conference of IAEG Japan, pp. 1–4, Sept 2015.

      [5] T. Harianto, S. Hamzah, S. H. Nur, M. A. Abdurrahman, R. U. Latief, I. Fadliah, A. Walenna, "Biogrouting stabilization on marine sandy clay soil." Proceedings of the 7th International Conference on Asian and Pacific Coasts (APAC 2013) Bali, 2013.

      [6] Y. Fujita, F. G. Ferris, R. D. Lawson, F. S. Colwell, R. W. Smith, "Calcium carbonate precipitation by ureolytic subsurface bacteria". Geomicrobiol Journal, vo.17, pp. 305-318, Jan 2000.

      [7] Y. H. Suprapto, "Application Of Microbiology To Improve Mechanical Properties Of Soil And Concrete". Tesis Universite Lille1, Lille, 2011.

      [8] W. Rahayu, P. Lisdiyanti, R. E. Pratama, "Tanah gambut melalui uji triaksial consolidated undrained dan unconsolidated undrained, vol.22, no.3, pp. 201-208, Dec 2015.

      [9] Ivanov, Volodimir & Stabnikov, Viktor, "Construction biotechnology: biogeochemsitry, microbiology, and biotechnology of construction materials and processes". Singapore: Springer, 2017.

      [10] S. Aininyah, P. E. Nugroho, P. Lisdiyanti, M. P. Koentjoro, "Biogrouting: produksi urease dari bakteri laut (Oceanobaccillus sp.) pengendap karbonat, Jurnal Sains dan Seni POMITS, vol. 2, no.1, Sept 2014.

      [11] I. A. Sadisun, R. D. Kartiko, A. Kesumaningtyas, T. E. Utami, dan E. Sucipta, “Shear Strength Reduction of Tertiary Jatiluhur- Subang Claystones Due to Swelling Processes,†no. SEPTEMBER 2015, hal. 1–4, 2016.

      [12] P. Lisdiyanti, "Biogrouting : Pemanfaatan Mikroba Laut Pengendap Karbonat Dalam Penanganan Erosi Pantai". Bogor, 2012.

      [13] R. F. Craig, "Soil Mechanics, Fourth Edition. UK: Van Nostroad Reinhold Co. Ltd, pp.93, 2004

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  • How to Cite

    Joseph Henri Nainggolan, M., Rahayu, W., & Lisdiyanti, P. (2018). Effect of Urease Enzyme on Shear Strength of Clay Shale. International Journal of Engineering & Technology, 7(4.36), 424-428. https://doi.org/10.14419/ijet.v7i4.36.23909

    Received date: 2018-12-14

    Accepted date: 2018-12-14

    Published date: 2018-12-09