Geomechanics and Engineering

  • 제12권2호
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  • Pages.257-267
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  • 2017
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Improvement in engineering properties of subgrade soil due to stabilization and its effect on pavement response

  • Nagrale, Prashant P. (Civil Engineering, Sardar Patel College of Engineering) ;
  • Patil, Atulya P. (Department of Civil Engineering, Sardar Patel College of Engineering)
  • 투고 : 2015.06.18
  • 심사 : 2016.10.20
  • 발행 : 2017.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents laboratory investigation of stabilization of subgrade soil. One type of soil and three types of stabilizers i.e., hydrated lime, class F fly ash and polypropylene fibres are selected in the study. Atterberg limit, compaction, california bearing ratio (CBR), unconfined compressive strength and triaxial shear strength tests are conducted on unstabilized and stabilized soil for varying percentage of stabilizers to analyze the effect of stabilizers on the properties of soil. Vertical compressive strains at the top of unstabilized and stabilized subgrade soil were found out by elasto-plastic finite element analysis using commercial software ANSYS. Strategy for design of optimum pavement section was based on extension in service life (TBR) and reduction in layer thickness (LTR). Extension in service life of stabilized subgrade soil is 6.49, 4.37 and 3.26 times more due to lime, fly ash and fibre stabilization respectively. For a given service life of the pavement, there is considerable reduction in layer thicknesses due to stabilization. It helps in reduction in construction cost of pavement and saving in natural resources as well.

키워드

참고문헌

  1. Amu, O.O., Fajobi, A.B. and Oke, B.O. (2005), "Effect of eggshell powder on the stabilizing potential of lime on an expansive clay soil." J. Appl. Sci., 5(8), 1474-1478.
  2. Arbani, M. and Veis Karmani, M. (2007), "Geomechanical properties of lime stabilized clayey sands", Arab. J. Sci. Eng., 32(1B), 11-25.
  3. Bagui, S.K. (2012), "Pavement design for rural low volume roads using cement and lime treatment base", Jordan J. Civil Eng., 6(3), 293-302.
  4. Berg, R.R., Christopher, B.R. and Perkins, S.W. (2000), "Geosynthetic reinforcement of the aggregate base/subbase courses of flexible pavement structures-GMA white paper II", Geosynthetic Materials Association, Roseville, MN, USA, 176 p.
  5. Chandra, S., Viladkar, M.N. and Nagrale, P.P. (2008), "Mechanistic approach for fiber-reinforced flexible pavements", J. Transport. Eng. ASCE, 134(1), 15-23. https://doi.org/10.1061/(ASCE)0733-947X(2008)134:1(15)
  6. Chegenizadeh, S.A., Amin, C. and Nikraz, H. (2012), "Laboratory investigation in the effect of lime on compressibility of soil", Proceedings of International Conference on Civil and Architectural Applications, ICCAA, Phuket, Thailand, December, pp. 89-93.
  7. Indian Road Congress (IRC) (2001), "Guideline for the design of flexible pavaments", Indian Code of Practice, IRC: 37; New Delhi, India.
  8. Mishra, N.K. and Rath, S. (2011), "Cost effectiveness of clayey soil &moorum, treated with fly ash-lime for construction of low volume roads", Int. J. Civil Struct. Eng., 2(1), 370-381.
  9. Moustafa, A.K., Mohamed EL-Shabrawy and Hamad, M.A. (2011), "Procedure for quantification and optimization of stabilized subgrade pavement materials", Int. J. Adv. Eng. Technol., 2(1), 25-35.
  10. Nagrale, P.P. and Shrivastava, P. (2009), "Design of lime stabilized flexible pavement", Indian Highways, 19-25.
  11. Perkins, S.W. and Edens, M.Q. (2002), "Finite element and distress models for geosynthetic - reinforced pavements", Int. J. Pav. Eng. (IJPE), 3(4), 239-350. https://doi.org/10.1080/1029843021000083504
  12. Santoni, R.L. and Webster, L. (2001), "Airfields and roads construction using fiber stabilization of sands", J. Transport. Eng., 127(2), 96-104. https://doi.org/10.1061/(ASCE)0733-947X(2001)127:2(96)
  13. Rao, S.B. and Jayalekshmi, S. (2010), "Fibre reinforcement of soils sub grade beneath flexible pavement", Proceedings of Indian Geotchnical Conference-2010, Mumbai, India, December, pp. 575-578.
  14. Tingle, S., Santoni, S. and Webster, L. (2002), "Full scale field tests of discrete fiber reinforced sand", J. Transport. Eng., ASCE, 128(1), 9-16. https://doi.org/10.1061/(ASCE)0733-947X(2002)128:1(9)
  15. Yi, C., Bin, S., Tang, C. and Wang, B. (2006), "Pilot study on the mechanical behavior of soil with inclusion of polypropylene fibre and lime", Abstracts of the 10th IAEG International Congress, Nottingham, UK, September, pp. 1-6.
  16. Youseff, N.A., Omar, N.M. and Khaldon, O. (2012), "Soil stabilization by lime", EJGE, 17, 1747-1757.

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  1. Swelling soils treatment using lime and sea water for roads construction 2017, https://doi.org/10.1016/j.aej.2017.08.009
  2. Simplified Approach for Settlement Analysis of Vertically Loaded Pile vol.143, pp.11, 2017, https://doi.org/10.1061/(ASCE)EM.1943-7889.0001334
  3. A numerical stepwise approach for cavity expansion problem in strain-softening rock or soil mass vol.18, pp.3, 2017, https://doi.org/10.12989/gae.2019.18.3.225
  4. Effect of fly ash layer addition on the bearing capacity of expansive soil vol.9, pp.4, 2017, https://doi.org/10.1680/jemmr.20.00034