Functional and cost- benefits of geosynthetics as subgrade reinforcement in the design of flexible pavement

Funcionalidad y costo-beneficio del uso de geosintética como refuerzo de subgrado en el diseño de pavimento flexible

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S. Vijayasimhan Sivapriya, Ph. D.
Shanmugam Ganesh-Kumar, Ph. D.

Abstract

The vertical stress exerted by the vehicles will be high in a populated road and to increase the bearing capacity of subgrade characteristics, geosynthetic material can be used. In the current study different geosynthetic material such as geo-grid, geo-textile and geo-membrane were used to as a subgrade reinforcement member inside the CBR mould for understanding the improvement in subgrade  for single, two and three geosynthetic layering  in the CBR mould. The results show there was a constant increase in the bearing with the increase in a number of layers and this improvement varied with type of geosynthetic materials also. Among three geosynhteic materials, geogrid shows improved CBR characteristics. Finally, Cost analysis and design of flexible pavement were carried for an optimum number of layers for geogrids. There was reduction of about 6.38% in the cost of construction when using geogrid as subgrade reinforcement member. 

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References (SEE)

[1] J. Zornberg, “Advances in the use of geosynthetics in pavement design,” in Second National Conference on Geosynthetics, 2011, pp. 3-21.

[2] S. J. Webster, S. L. Alford, “Investigation of construction concepts for pavements across soft grounds,” Waterways Experiment Station, Vicksburg,Miss, 1978.

[3] J. A. Ramalho-Ortiago, and E. M. Palmiera, “Geotextile performance at an access road on soft ground near Rio de Janeiro,” Proc. 2nd Int. Conf. Geotext., vol. 1, pp. 353-358, 1982.

[4] Amara Loulizi, Imad L Al-Qadi, Salman A.Bhutta, Gerardo W.Flintsch, “Evaluation of Geosynthetics used as Separators,” Transportation Research Record, vol. 1687 (1), pp. 104-111, Jan. 1999. DOI: https://doi.org/10.3141/1687-12.

[5] K. Huntington, and G. Ksaibati, “Evaluation of geogrid reinforced granular base,” Transp. Res. Board, vol. 18 (1), pp. 22-28, 2000.

[6] J. Jenner,C,Paul, “Lesson learned from 20 years experience on geosynthetic reinforcement of pavement foundtions,” in 2nd European geosynthetics conference, 2000, pp. 421-426.

[7] X. Collin, J. G. Kinney, and T. C. Fu, “Full Scale Highway Load Test of Flexible pavements systems with geogrid reinforced base course,” ICE Virtual Libr., vol. 3 (4), pp. 537-549, 1996. DOI: https://doi.org/10.1680/gein.3.0074.

[8] F. Chan, R. D. Barksdale, and S. F. Brown, “Aggregate base reinforcement of surfaced pavements,” Geotextiles and Geomembranes, vol. 8 (3). pp. 165-189, Jan. 1989. DOI: https://doi.org/10.1016/0266-1144(89)90002-2.

[9] Q. C. Murrad, Y. Abu-Farskh, and I. Akond, “Evaluating the performance of geosynthetic-reinforced unpaved roads using plate load tests,” Int. J. Pavement Eng., vol. 17 (10), pp. 901-912, 2015.

[10] S. Bloise, and N. Ucciardo, “On site test of reinforced freeway with high strength geosynthetics,” Transp. Res. Board, vol. 1, pp. 369-371, 2000.

[11] R. Hufenus, R. Rueegger, R. Banjac, P. Mayor, S. M. Springman, and R. Brönnimann, “Full-scale field tests on geosynthetic reinforced unpaved roads on soft subgrade,” Geotextiles and Geomembranes, vol. 24 (1), pp. 21-37, Feb. 2006. DOI: https://doi.org/10.1016/j.geotexmem.2005.06.002.

[12] L. G. Palmeria, and E. M. Antunes, “Geosynthetic reinforced unpaved road performance after surface maintenance,” in 9th International COnference on Geosynthetics, 2010, pp. 1457-1460.

[13] U. Rajesh, S. Sajja, and V. K. Chakravarthi, “Studies on Engineering Performance of Geogrid Reinforced Soft Subgrade,” Transportation Research Procedia, vol. 17, pp. 164-173, 2016. DOI: https://doi.org/10.1016/j.trpro.2016.11.072.

[14] K. K. Babu, “Utilisation of Coir Geotextiles for Unpaved Roads and Embankments,” Doctoral Thesis, Cochin University of Science and Technology, Kochi, India, 2007.

[15] A. K. Ashmawy, and P. L. Bourdeau, “Response of a Woven and a Nonwoven geotxtile to monotonic and cyclic simple tension,” ICE Virtual Libr., vol. 3 (4), pp. 493-515, 1996.

[16] A. M. Elleboudy, N. M. Saleh, and A. G. Salama, “Assessment of geogrids in gravel roads under cyclic loading,” Alexandria Engineering Journal, vol. 56 (3), pp. 319-326, Sep. 2017. DOI: https://doi.org/10.1016/j.aej.2016.09.023.

[17] L. Suku, S. S. Prabhu, and G. L. Sivakumar Babu, “Effect of geogrid-reinforcement in granular bases under repeated loading,” Geotextiles and Geomembranes, vol. 45 (4), pp. 377-389, Aug. 2017. DOI: https://doi.org/10.1016/j.geotexmem.2017.04.008.

[18] M. T. Das. B. M. Shin, and E. C. Omar, “The bearing capacity of surface strip foundations on geo-grid reinforced sand and clay - a comparative study,” Geotech. Geol. Eng., vol. 12 (1), pp. 1-7, Mar. 1994. DOI: https://doi.org/10.1007/BF00425933.

[19] E. Cicek, E. Guler, and T. Yetimoglu, “Effect of reinforcement length for different geosynthetic reinforcements on strip footing on sand soil,” Soils and Foundations, vol. 55 (4), pp. 661-677, Aug. 2015. DOI: https://doi.org/10.1016/j.sandf.2015.06.001.

[20] M. Salih Keskin, and M. Laman, “Experimental and numerical studies of strip footings on geogrid-reinforced sand slope,” Arab. J. Sci. Eng., vol. 39 (3), pp. 1607-1619, Mar. 2014. DOI: https://doi.org/10.1007/s13369-013-0795-7.

[21] Bureau of Indian Standard, IS 2720 (Part III/I)-Determinationof Specific Gravity of Fine granied Soil, 1997, pp. 1-10.

[22] Bureau of Indian Standard, IS 2720 (Part V)-Determination of Liquid and Plastic Limit, 1995, pp. 1-17.

[23] Bureau of Indian Standard, IS 2720 (Part IV)-Grain size analysis, 1995, pp. 1-40.

[24] Bureau of Indian Standard, IS 2720 (Part X)-Determination of Unconfined Compressive Strength, 1995, pp. 1-8.

[25] Bureau of Indian Standard, IS 2720 (Part VII)-Methods of Test for Soils, Determination of Water Content-Dry Density Relation using Light Compaction, 2011, pp. 1-16.

[26] Bureau of Indian Standard, IS 2720 (Part 16)-Laboratory Determination of CBR, 1997, pp. 1-17.

[27] C. A. Adams, E. Apraku, and R. Opoku-boahen, “Effect of Triaxial Geogrid Reinforcement on CBR Strength of Natural Gravel Soil for Road Pavements,” J. Civ. Eng. Res., vol. 5 (2), pp. 45-51, 2015.

[28] S. A. Naeini, and R. Ziaie-Moayed, "Effect of plasticity index and reinforcement on the CBR value of soft clay," International Journal of Civil Engineering, vol. 7 (2). 2009, pp. 124-130.

[29] R. J. Fannin, and O. Sigurdsson, “Field Observations on Stabilization of Unpaved Roads with Geosynthetics,” J. Geotech. Eng., vol. 122 (7), pp. 544-553, 1996. DOI: https://doi.org/10.1061/(ASCE)0733-9410(1996)122:7(544).

[30] IRC 37, “Guidelines for the Design of Flexible Pavements,” Indian Roads Congr. New Delhi, 2012.

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