Fiber Reinforcement in Pavement Systems Design Guidance

Preferred Design Procedure

<h2>Preferred Design Procedure</h2>Currently there is no FHWA design guidance for fiber reinforcement in pavement systems. The most practical design/analysis method available is laboratory testing of a soil fiber mixture and then applying the material properties to the empirical design method or the mechanistic empirical design method for flexible pavements.The homogenized approach and the discrete approach method are rational analysis methods of determining soil-fiber matrix strength. The results of the discrete method and the homogenized method need verification and improvement for applications to pavement systems. The results of the discrete or homogenized analysis methods would also be used with the empirical design method or the mechanistic empirical design method.The empirical design method is based on AASHTO (1993) Guide for Design of Pavement Structures and AASHTO (2001) Provisional Standard PP 46-01 Recommended Practice for Geosynthetic Reinforcement of the Aggregate Base Course of Flexible Pavement Structures. The mechanistic empirical design method is a new design method adopted by the AASHTO (2008) Mechanistic-Empirical Pavement Design Guide (MEPDG), Interim Edition: A Manual of Practice.

References

<h2>References</h2>AASHTO (1993). “AASHTO Guide for Design of Pavement Structures.” American Association of State Highway and Transportation Officials, Washington, D.C.AASHTO (2008). “Mechanistic-Empirical Pavement Design Guide” Interim Edition: A Manual of Practice, the AASHTO Mechanistic-Empirical Pavement Design Guide, Interim Edition. American Association of State Transportation and Highway Officials, Washington, D.C.Bhattacharya, P.G., and Pandey, B.B. (1984). “Study of strength and curing of lime-stabilised laterite soil-plain and fiber-reinforced.” Highway Research Bulletin, pp. 1-22.Consoli, N.C, Prietto, P.D.M., and Ulbrich, L.A. (1998b). “Influence of fiber and cement addition on behavior of sandy soil.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 124, No. 12, pp. 1211-1214.Consoli, N.C., Casagrande, M.D.T., Prietto, P.D.M., and Thome, A. 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J.Kaniraj, S.R. and Havanagi, V.G. (2001). “Behavior of cement-stabilized fiber-reinforced fly ash-soil mixtures.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 127, No. 7, pp. 574-584.Khattak, M.J. and Alrashidi, M. (2006). “Durability and mechanistic characteristics of fiber reinforced soil–cement mixtures.” The International Journal of Pavement Engineering, Vol. 7, No. 1, pp. 53-62.Kumar, A., Walia, B.S., and Bajaj, A. (2007). “Influence of fly ash, lime, and polyester fibers on compaction and strength properties of expansive soil.” Journal of Materials in Civil Engineering, Vol. 19, No. 3, pp. 242-248.Kumar, A., Walia, B.S., and Mohan, J. (2006) "Compressive strength of fiber reinforced highly compressible clay." Construction and Building Materials, pp. 1063-1068.Kumar, P. and Singh, S.P. (2008) "Fiber-Reinforced Fly Ash Subbases in Rural Roads," Journal of Transportation Engineering, Vol. 134, No. 4, pp. 171-180.Li, C., and Zornberg, J.G. (2005). “Validation of discrete framework for the design of fiber reinforced soil.” Geo-Frontiers 2005, Geotechnical Special Publication No. 130: Geosynthetics Research and Development in Progress.Li, J. and Ding, D.W. (2002). “Nonlinear elastic behavior of fiber-reinforced soil under cyclic loading.” Soil Dynamics and Earthquake Engineering, Vol. 22, pp. 977-983.Liang, R. (1992). “Experimental and theoretical study of flexural behavior of polymer fiber reinforced, cement-treated soils” Geotechnical Special Publication No. 30: Grouting, Soil Improvement and Geosynthetics, pp. 1080-1091.Medjo Eko, R. and Riskowski, G. (1994) "Effects of fibers and cement on the mechanical behavior of soil-cement reinforced with sugar cane bagasse," International Journal for Housing Science and Its Applications, Vol. 18, No. 2, pp. 79-89.Michalowski, R. L., and Zhao, A. (1995a). "Continuum versus structural approach to stability of reinforced soil." Journal of Geotechnical Engineering, 121, pp. 152-162.Michalowski, R. L., and Zhao, A. (1995b). "Limit Condition for Fiber-Reinforced Granular Soils." Transportation Research Record, No. 1474, pp. 102-107.Michalowski, R. L. and Zhao, A. (1996). "Failure of Fiber-Reinforced Granular Soils." Journal of Geotechnical Engineering, 122(3), pp. 226-234.Newman, J.K. and White, D.J. (2008). “Rapid assessment of cement and fiber-stabilized soil using roller-integrated compaction monitoring.” Journal of the Transportation Research Board, No. 2059, Transportation Research Board of the National Academies, Washington, D.C., pp. 95–102.Puppala, A.J. and Musenda, C. (2000). “Effects of fiber reinforcement on strength and volume change in expansive soils.” Transportation Research Record, No. 1736, pp. 134-140.Rafalko, S.D., Brandon, T.L., Filz, G.M., and Mitchell, J.K. (2007). “Fiber reinforcement for rapid stabilization of soft clay soils.” Transportation Research Record, No. 2026, Transportation Research Board of the National Academies, Washington, D.C., pp. 21-29.Sadek, S., Najjar, S. S., and Freiha, F. (2010). "Shear strength of fiber-reinforced sands." Journal of Geotechnical and Geoenvironmental Engineering, 136, pp. 490-499.Santoni, R.L., Tingle, J.S., and Webster, S.L. (2001). “Engineering properties of sand-fiber mixtures for road construction.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 127, No. 3, pp. 258–268.Tang, C., Shi, B., Gao, W., Chen, F., and Cai, Y. (2007). “Strength and mechanical behavior of short polypropylene fiber reinforced and cement stabilized clayey soil.” Geotextiles and Geomembranes, Vol. 25, No. 3, pp. 194–202.Zornberg, J.G. (2002) “Discrete framework for limit equilibrium analysis of fiber-reinforced soil.” Géotechnique Vol. 52, No. 8, pp. 593–604.

Technology

Fiber Reinforcement in Pavement Systems