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An Experimental Investigation On CBR Improvement Of Sand-Flyash Mix Using Geogrid Layers

Parveen Chander*, R.Sharma**

* Assistant Professor, Department of Civil Engineering, Punjabi University, Patiala, India.

** Assistant Professor, Department of Civil Engineering, Chandigarh University, Punjab, India.

Periodicity:June - August'2014
DOI : https://doi.org/10.26634/jce.4.3.3021

Abstract

Development of an adequate network of roads, especially in remote rural areas is of vital importance for the socioeconomic development of a country. Search is being made to find alternative materials, for use in pavement construction. Fly ash, lime and cement are the commonly used materials for soil stabilization. Geosynthetics, Geotextiles and Geo-grids are also used nowadays in roads for subgrade improvement in road construction. This paper presents the laboratory CBR test results conducted on sandy soil mix with fly ash for unreinforced and reinforced cases. The reinforcement was done using geogrids in layers at different depths in CBR mould. The fly ash was varied from 15% to 35% in sand sample. All the tests were conducted at Optimum moisture content (OMC) and maximum dry density (MDD) of mixes. The results of California Bearing Ratio (CBR) tests have shown considerable improvement with the use of reinforcement. The maximum increase in CBR value with Geo- grid was observed with the 2 layers of Geo-grid use. The increase in value of CBR was from 6% for virgin soil to 13% with use of geogrids.

Keywords

CBR, Geogrid layers, Fly ash, Stabilization, OMC, MDD.

How to Cite this Article?

Chauhan,R., and Sharma.R. (2014). An Experimental Investigation On CBR Improvement Of Sand-Flyash Mix Using Geogrid Layers. i-manager’s Journal on Civil Engineering, 4(3), 10-14 https://doi.org/10.26634/jce.4.3.3021

References

[1]. Bergado,D.T., Youwai, S.,Hai, C.N. and Vootipruex, P. (2001),"Interaction of Nonwoven Needle-Punched Geotextiles under Axisymmetric Loading Conditions", Geotextile and Geomembranes, Vol. 19, pp. 299- 328.

[2]. Benson, C.H. and Khire, M.U, (1994), "Reinforcing Sand with Strips of Reclaimed High Density Polyethylene", Journal of Geotechnical Engineering, Vol. 121, pp. 838- 855.

[3].Cancelli, A., Montanelli, F., Rimoldi, P. and Zhao, A. (1996), ''Full Scale Laboratory Testing on Geosynthetics Reinforced Paved Roads'', Proceedings of the International Symposium of Earth Reinforcement, pp. 573-578.

[4]. Gopal, Ranjan and Charan, H. D. (1998), "Randomly Distributed Fiber Reinforced Soil—the State of the Art.", Journal of the Institution of Engineers (India), Vol.79, pp 91-100.

[5]. Gosavi, G., Patil, K. A. and Saran, S. (2004), ''Improvement of Properties of Black Cotton Soil Sub grade through Synthetic Reinforcement'', Department of Civil Engineering, IIT Roorkee.

[6]. IS 2720. Method of Test for Soil (Part CVI). Laboratory Determination of CBR.

[7]. IRC: SP 72 (2007). Guidelines for the Design of Flexible Pavements for Low Volume Rural Roads.

[8]. Kumar, R., Kanaujia, V.K. and Chandra, D. (1999), "Engineering Behavior of Fiber Reinforced Pond Ash and Silty Sand", Geosynthetics International, Vol. 6, pp. 509-518.

[9]. Mittal, S. and Shukla, J. P. (2001), "Soil Testing for Engineers." Khanna Publishers, New Delhi.

[10]. Motanelli, F., Zhao, A. and Rimoldi, P. (1997), ''Geosynthetics-Reinforced pavement system: testing and design'' Proceeding of Geosynthetics, Vol.97, pp.549- 604.

[11]. Perkins, S.W. and Ismeik, M. (1997), "A Synthesis and evaluation of geosynthetic reinforced base layers in flexible pavements: Part I", Geosynthetics International, pp.549-604.

[12]. Rao, G. V., Gupta K. K. and Singh, P.B. (1989), "Laboratory Studies on Geotextiles as Reinforcement in Road Pavement.", Proceedings of the International Workshop on Geotextile, Bangalore, Vol.1, pp. 137-143.

[13]. Rao, G. V. and Raju, G. V. S. (1990), "Pavements." Tata Mc Graw Hill, New Delhi, pp. 283-306.

[14]. Shetty, K. R. and Shetty, P. P. (1989), "Reinforced Soil layers in Pavement Construction.", Proceedings of the International Workshop of Geotextile, Bangalore, Vol 1, pp. 177-183.

An Experimental Investigation On CBR Improvement Of Sand-Flyash Mix Using Geogrid Layers

Abstract

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References

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