An Analytical Study of Flexible Pavement Design Using Resilient Modulus Model of Expanded Polystyrene (EPS)
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The resilient modulus model of EPS geofoam to be used for a flexible pavement design was developed. In this study, the model was applied to design the flexible pavement and to predict the magnitude of the deformation of EPS geofoam blocks as a subgrade in the flexible pavement structure by using the resilient modulus model of EPS geofoam (RMEG) program. The RMEG program presented how much the EPS geofoam subgrade settled over the designed duration and the AASHTO flexible pavement design equation with the resilient modulus of EPS geofoam noted that how long the flexible pavement endured under traffic loads with 70% reliability for the estimated duration with less than 5mm vertical deformation during 20.6 years without the significant pavement distress as a substitute material for the natural soils.
Abstract
The resilient modulus model of EPS geofoam to be used for a flexible pavement design was developed. In this study, the model was applied to design the flexible pavement and to predict the magnitude of the deformation of EPS geofoam blocks as a subgrade in the flexible pavement structure by using the resilient modulus model of EPS geofoam (RMEG) program. The RMEG program presented how much the EPS geofoam subgrade settled over the designed duration and the AASHTO flexible pavement design equation with the resilient modulus of EPS geofoam noted that how long the flexible pavement endured under traffic loads with 70% reliability for the estimated duration with less than 5mm vertical deformation during 20.6 years without the significant pavement distress as a substitute material for the natural soils.
참고문헌 (9)
- AASHTO, "AASHTO Guide for Design of Pavement Structures", 1~23 (1993)
- Determining the Resilient Modulus of Soils and Aggregate Materials, "AASHTO", American Association of State Highway and Transportation Officials Designation, 1~29, pp.American Association of State Highway and Transportation Officials Designation T 307-99 (2003)
- Bang, S., "Experimental and Analytical Study of Expanded Polystyrene Blocks in Highway Application", Proc. of International Seminar on The Application of EPS for Embankment Construction, pp.105~133 (1995)
- Horvath, J. S., "Geofoam Geosynthetic", pp.106~156 (1995), Horvath Engineering
- Huang, Y. H., "Pavement Analysis and Design", pp.316~323 (1993), Prentice Hall
- Mannering, F. L., "Principles of Highway Engineering and Traffic Analysis", pp.97~110 (1998), John Wiley & Sons, Inc
- Myhre, Q., "EPS-Materials Specifications", Proc. of International Seminar on The Application of EPS for Embankment Construction, pp.17~20 (1995)
- Guideline and recommended standard for geofoam applications in highway embankments, "Stark, T. D.", NCHRP, 7~12, pp.NCHRP Report 529 (2004)
- Ugural, A. C., "Advanced Strength and Applied Elasticity", pp.96~110 (1995), Prentice Hall