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On the Time-Dependent Behavior of EPS Geofoam: Experimental and Numerical Investigations

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Abstract

Expanded polystyrene geofoam (EPS) is used as a lightweight fill material in a wide range of geotechnical engineering applications, including, embankments, retaining walls, and buried structures. Under high compressive loads, EPS may experience long-term compression that needs to be taken into consideration during design. This study presents the results of an experimental investigation that has been conducted to evaluate the creep response of two different EPS geofoam materials (EPS15 and EPS22) under uniaxial compression loading. Four identical setups have been designed and built to allow for multiple geofoam samples to be simultaneously tested under different applied pressures. The effect of stress level on the creep strain is investigated. Results showed that, for the two investigated EPS materials, creep strains started to develop when the applied pressure exceeded 50% of the uniaxial compressive strength of the material and became significant at applied pressure of about 70% of the material strength. A three-dimensional numerical model that is capable of capturing the creep response of soft soils is adapted and calibrated using the available experimental data. The suitability of the model to investigate the effect of lateral confinement on the creep deformation of the geofoam samples is also examined. It is concluded that, although soft soil creep models are able to capture the uniaxial creep response of geofoam, it is not suitable to model the effect of lateral confinement, particularly for low density EPS material.

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References

  • Aabøe R (2000) Evidence of EPS long term performance and durability as a light weight fill. Intern rapport No. 2139, Norwegian Public Roads Administration, Oslo, Norway

  • Aabøe R, Frydenlund TE (2011) 40 years of experience with the use of EPS Geofoam blocks in road construction. EPS 2011, Lillestrom, Norway

  • ASTM D1621-10 (2010) Standard test method for compressive properties of rigid cellular plastics. ASTM International, West Conshohocken

    Google Scholar 

  • Awol TA (2012) A parametric study of creep on EPS geofoam embankments. Master’s thesis, Norwegian University of Science and Technology, Trondheim, Norway, 126

  • Bathurst RJ, Zarnani S, Gaskin A (2007) Shaking table testing of Geofoam seismic buffers. Soil Dyn Earthq Eng 27(4):324–332

    Article  Google Scholar 

  • Beju YZ, Mandal JN (2016) Compression creep test on expanded polystyrene (EPS) geofoam. Int J Geotech Eng 10:401–408

    Article  Google Scholar 

  • Birhan AG, Negussey D (2014) Effect of confinement on creep behavior of EPS geofoam. Geotech Test J 37(6):959–966

    Article  Google Scholar 

  • Brinkgreve RBJ, Engin E, Swolfs WM (2011) PLAXIS 3D manuals. PLAXIS b.v., Delft

  • Chun BS, Lim H, Sagong M, Kim K (2004) Development of a hyperbolic constitutive model for expanded polystyrene (EPS) geofoam under triaxial compression tests. Geotext Geomembr 22:223–237

    Article  Google Scholar 

  • Elragi A, Negussey D, Kyanka G (2001) Sample size effects on the behaviour of EPS geofoam. Geotechnical Special Publication, GSP112, Reston, pp 280–291

    Google Scholar 

  • Findley WN (1960) Mechanism and mechanics of creep of plastics. Soc Plast Eng J 16(1):57–65

    Google Scholar 

  • Frydenlund TE, Aaboe R (1996) Expanded polystyrene—the light solution. In: Proceedings of the international symposium on EPS construction method, Tokyo

  • Horvath JS (1998) Mathematical modeling of the stress–strain–time behavior of geosynthetics using the Findley equation: general theory and application to EPS-block geofoam. Manhattan College Research Report No. CE/GE-98-3, Bronx, NY, USA, 1–35

  • Ikizler SB, Aytekin M, Nas E (2008) Laboratory study of expanded polystyrene (EPS) geofoam used with expansive soils. Geotext Geomembr 26(2):189–195

    Article  Google Scholar 

  • Khan MI, Meguid MA (2018) Experimental investigation of the shear behavior of EPS geofoam. Int J Geosynth Ground Eng 4(2):1–12

    Article  Google Scholar 

  • Magnan JP, Serratrice JF (1989) Propriétés mécaniques du polystyrène expansé pour ses applications en remblai routier, vol 164. Bulletin liaison Laboratorie Central des Ponts et Chaussées (LCPC), Paris, pp 25–31

    Google Scholar 

  • Meguid MA, Ahmed MR, Hussein M, Omeman Z (2017) Earth pressure distribution on a rigid box covered with U-shaped geofoam wrap. Int J Geosynth Ground Eng 3(2):1–11

    Article  Google Scholar 

  • Mei GH, Min CY, Long LH, Yuan LJ, Jian C (2012) Creep behaviour of EPS composite soil. Sci China Technol Sci 55:1–11

    Google Scholar 

  • Miki G (1996) Ten year history of EPS method in Japan and its future challenges. In: Proceedings of international symposium on EPS construction method (EPS Tokyo’96), Tokyo, Japan, pp 393–411

  • Negussey D, Huang X (2007) Resilient modulus for EPS geofoam new peaks in geotechnics. Part of soil and material inputs for mechanistic empirical pavement design, GeoDenver Proceedings GSP 169:2007

    Google Scholar 

  • Negussey D, Jahanandish M (1993) A comparison of some engineering properties of EPS with those of soils. Transportation Research Record No. 1418, Transportation Research Board, Washington, DC, pp 43–50

  • Negussey D, Sun MC (1996) Reducing Lateral Earth Pressure by Geofoam (EPS) Substitution. In: Proceedings of international symposium on EPS construction method (EPS Tokyo’96), Tokyo, Japan, pp 202–211

  • NPRA (2002). Norwegian Public Road Administration. Publication no.100: Light-weight filling materials for road construction, Oslo, December 2002, pp 11–25

  • Sheeley M, Negussey D (2000) An investigation of geofoam interface strength behaviour. In: Proceedings of the soft ground technology conference: soft ground technology, ASCE, Geotechnical Special Publication No. 112, pp 292–303

  • Skuggedal H, Aabøe R (1991) Temporary overpass, bridge abutments founded on fills of expanded polystyrene. Nordic Road & Transport Research No. 2

  • Stark TD, Arellano D, Horvath JS, Leshchinsky D (2004) Geofoam application in design and construction of highway embankments. Transportation Research Board 65:1–792

    Google Scholar 

  • Sun MC (1997) Engineering behavior of geofoam (expanded polystyrene) and lateral pressure reduction in substructures. Master’s thesis, Syracuse University, New York, USA

Download references

Acknowledgements

This research is supported by a research grant from the Natural Sciences and Engineering Research Council of Canada (NSERC). The authors would like to acknowledge the support of Dr. W.D. Cook and Mr. J. Bartczak in conducting these experiments.

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Authors and Affiliations

  1. Civil Engineering and Applied Mechanics, McGill University, 817 Sherbrooke St. W, Montreal, QC, H2A 0C3, Canada

    Mohamed A. Meguid & Mohamed Drissi-Kamili

  2. McGill University, Montreal, Canada

    Tarik A. Youssef

  3. Faculty of Engineering, The French University of Egypt, Al-Shorouk City, New Cairo, Egypt

    Tarik A. Youssef

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  1. Mohamed A. Meguid
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  2. Mohamed Drissi-Kamili
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  3. Tarik A. Youssef
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Correspondence to Mohamed A. Meguid.

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Meguid, M.A., Drissi-Kamili, M. & Youssef, T.A. On the Time-Dependent Behavior of EPS Geofoam: Experimental and Numerical Investigations. Geotech Geol Eng 37, 755–764 (2019). https://doi.org/10.1007/s10706-018-0646-0

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  • DOI: https://doi.org/10.1007/s10706-018-0646-0

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