STRENGTH AND DURABILITY EFFECT ON STABILIZED SUBGRADE SOIL

Authors

  • Noraida Razali
  • Norazzlina M. Sa’don
  • Abdul Razak Abdul Karim

DOI:

https://doi.org/10.33736/jcest.151.2016

Keywords:

fly ash, rubberchip, subgrade

Abstract

This paper presents the development of strength and durability effect of stabilized soil. The clayey soil collected from Kota Samarahan, Sarawak was admixed with cement, fly ash and rubberchip as an additive for stabilization purposes. The optimum mixture determined was then used as a recommendation for the design guidelines of sub-grade based on JKR Standard Specification for Road Works. The stabilized clay specimens were prepared with 5% cement and various fly ash and rubber chips contents, of 5%, 10% and 15%, respectively. The specimens were then cured for 7 and 28 days before subjected to Unconfined Compressive Strength (UCS) tests and California Bearing Ratio (CBR) tests. As observed, the stabilization improved the strength and stiffness of the soil properties significantly. However, the addition of 15% rubberchip shows a reduction in strength for both 7 and 28 days curing period. From the study, the optimum mixture, which fulfilled the JKR Standard Specification was the mixture of 5% cement and 15% fly ash. However, the mixture of 5% cement and 10% rubberchip is also recommended to be used as an alternative to stabilize the subgrade for low volume road.

References

Little, D.N and Scullion, T., (2005), Guidelines for Modification and Stabilization of Soils and Base for Use in Pavement Structures. Construction Division, Materials & Pavements Section, Geotechnical, Soils & Aggregates Branch, Texas Department of Transportation (TxDot).

Little, D.N. and Nair, S., (2009), "Recommended Practice for Stabilization of Sugrade Soils and Base Materials", Texas Transportation Institute, Texas A&M University College Station, Texas.

Parker, J.W., (2008), "Evaluation of Laboratory Durability Tests for Stabilized Subgrade Soils", Master Thesis. Brigham Young University, Utah.

Terrel, R.L., Epps, J.A., Barenberg, E.J., Mitchell, J.K., Thompson, M.R., (1979), "Soil Stabilization in Pavement Structures", A User's Manual - Vol. 2: Mixture Design Consideration, FHWA-IP-80-2, Federal Highway Administration, Washington, D.C.

Veisi, M., Chittoori, B., Celaya, M., Nazarian, S., Puppala, A. J., Solis, C., (2010), "Accelerated Stabilization Design of Subgrade Soils", Center for Transportation Infrastructure Systems, University of Texas.

Production Division, (2008), Design Procedures for Soil Modification or Stabilization, Office of Geotechnical Engineering, Indianapolis.

Patil, B.M. and Patil, K.A., (2013), "Improvement in Properties of Subgrade Soil By Using Pond Ash and Chemical Additive". Indian Highways Technical Papers, pp. 35-49.

Trivedi, J.S., Nair, S., Iyyunni, C., (2013), "Optimum Utilization of Fly Ash for Stabilization of Sub-grade Soil using Genetic Algorithm", Chemical, Civil and Mechanical Engineering Tracks of 3rd Nirma University International Conference, pp. 250-258.

https://doi.org/10.1016/j.proeng.2013.01.034

Parsons, R. L. and Kneebone, E., (2005), "Field Performance of Fly Ash Stabilised Subgrade", Ground Improvement, No. 1, Department of Civil and Environmental Engineering, University of Kansas, Lawrence, USA , pp. 33-38.

https://doi.org/10.1680/grim.2005.9.1.33

Mokhtar, M. and Chan, C.M., (2012), "Effect of Using Cement Admixed With Rubberchip on the Undrained Shear Strength of Soft Soil", Master Thesis, Universiti Tun Hussien Onn, Malaysia.

Chan, C.M., (2012), "Mechanical Properties of Clayey Sand Treated", CED, Vol. 14, No. 1, pp. 7-12.

https://doi.org/10.9744/ced.14.1.7-12

Robani, R. and Chan, C.M., (2008), "Unconfined Compressive Strength of Clay Stabilized with Cement-Rubberchips", Master Thesis, Universiti Tun Hussien Onn, Malaysia.

Parsons, R.L., and Milburn, J.P., (2003), "Engineering Behavior of Stabilized Soils", Transportation Research Record: Journal of the Transportation Research Board. No. 1837, TRB, National Research Council, Washington, DC, pp. 20-29.

https://doi.org/10.3141/1837-03

British Standards Institution (BSI). (1990). BS1377: British Standard Methods of Test for Soils for Civil Engineering Purposes.

JKR Malaysia, (2008), Standard Specification for Road Works, Section 4: Flexible Pavements, Jabatan Kerja Raya, Malaysia.

Das, B. (1994): Principles of Geotechnical Engineering, PWS-Kent Publishing Company, Boston, 3rd Ed.

JKR Specification for Road Works, (2012), Jabatan Kerja Raya, Malaysia.

Ho, M.H., Chan,C.M., (2010), "The Potential of Using Rubberchips as a Soft Clay Stabilizer Enhancing Agent", Modern Applied Science, Vol. 4, No.10,pp. 122-131

https://doi.org/10.5539/mas.v4n10p122

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Published

2016-04-01

How to Cite

Razali, N., M. Sa’don, N., & Abdul Karim, A. R. (2016). STRENGTH AND DURABILITY EFFECT ON STABILIZED SUBGRADE SOIL. Journal of Civil Engineering, Science and Technology, 7(1), 9–19. https://doi.org/10.33736/jcest.151.2016