Composite Soil: Fiber Inclusion and Strength

Article Preview

Abstract:

Reinforced soil has been among the most effective soil modification materials. Its use has been expanded rapidly into civil engineering, geotechnical engineering and pavement engineering. Reinforcing subgarde in pavement systems has always been an issue. This study focuses on effect of fiber inclusion on the strength of subgrade material. Plastic fiber was used for this investigation. Fiber contents and aspect ratio have been changed during these tests. The fiber percentage varied from 0 % (for unreinforced samples) to 2%. Clay was used as sub grade material. Unconfined compression tests were carried out to investigate behaviour of the composite under different condition. The fiber length and fiber content found to play important rule on the strength of composite. Furthermore it was observed that ductility of sample increased by fiber inclusion.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 308-310)

Pages:

1646-1650

Citation:

Online since:

August 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Akbulut, S., Arasan, S. and Kalkan, E. (2007) Modification of clayey soils using scrap tire rubber and synthetic fibers, Journal of Applied Clay Science 38, 23-32.

DOI: 10.1016/j.clay.2007.02.001

Google Scholar

[2] Al Refeai, T.O. (1991) Behaviour of granular soils reinforced with discrete randomly oriented inclusions, Journal of Geotextiles and Geomembranes 10, p.319–333.

DOI: 10.1016/0266-1144(91)90009-l

Google Scholar

[3] Cai, Y., Shi, B., Charles, W.W. Ng. & Tang, C. (2006) Effect of polypropylene fiber and lime admixture on engineering properties of clayey soil, Engineering Geology 87, 230– 240.

DOI: 10.1016/j.enggeo.2006.07.007

Google Scholar

[4] Consoli, N.C., Vendruscolo, M.A., Fonini, A. and Dalla Rosa, F. (2009) Fiber reinforcement effects on sand considering a wide cementation range, Geotextiles and Geomembranes 27, p.196–203.

DOI: 10.1016/j.geotexmem.2008.11.005

Google Scholar

[5] Freitag, D.R. (1986) Soil randomly reinforced with fibers, Journal of Geotechnical Engineering ASCE 112 (8), p.823–826.

DOI: 10.1061/(asce)0733-9410(1986)112:8(823)

Google Scholar

[6] Lorenzo, G. A. and Bergado, D. T. (2004). Fundamental parameters of cement-admixed clay – New approach. Journal of Geotechnical and Geoenvironmental Engineering, Vol. 130, No. 10, pp.1-9.

DOI: 10.1061/(asce)1090-0241(2004)130:10(1042)

Google Scholar

[7] Michalowski, R. L., Cermak, J. (2002), Strength anisotropy of fiber-reinforced sand. Computers and Geotechnics, Vol. 29, No. 4, pp.279-299.

DOI: 10.1016/s0266-352x(01)00032-5

Google Scholar

[8] Maher, M. H., Ho, Y. C. (1994), Mechanical-properties of kaolinite fiber soil composite. J. of Geotech. Engrg, ASCE, Vol. 120, No. 8, pp.1381-1393.

DOI: 10.1061/(asce)0733-9410(1994)120:8(1381)

Google Scholar

[9] Nataraj, M. S., Mcmanis, K. L. (1997), Strength and deformation properties of soils reinforced with fibrillated fibers. Geosynthetics Int., Vol. 4, No. 1, pp.65-79.

DOI: 10.1680/gein.4.0089

Google Scholar

[10] Sivakumar Babu, G.L., Vasudevan, A.K. and Haldar, S. (2008) Numerical simulation of fiber-reinforced sand behaviour, Geotexiles and Geomembranes 26, p.181–188.

DOI: 10.1016/j.geotexmem.2007.06.004

Google Scholar

[11] Yetimoglu, T. and Salbas, O. (2003) A study on shear strength of sands reinforced with randomly distributed discrete fibers, Geotextiles and Geomembranes 21 (2), p.103–110.

DOI: 10.1016/s0266-1144(03)00003-7

Google Scholar

[12] Ziegler, S., Leshchinsky, D., Ling, H. I., and Perry, E. B. (1998) Effect of short polymeric fibers on crack development in clays. Soils and Foundations, Vol. 38, No. 1, pp.247-253.

DOI: 10.3208/sandf.38.247

Google Scholar

[13] Zornberg, J. G., Cabral, A. R. and Viratjandr, C. (2004) Behavior of tire shred-sand mixtures, Canadian Geotechnical Journal 41 (2), p.227–241.

DOI: 10.1139/t03-086

Google Scholar

[14] Zornberg, J. G. (2002) discrete framework for limit equilibrium analysis of fiber-reinforcement, Geotechnique Journal 52 (8), p.227–241.

Google Scholar