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http://dx.doi.org/10.14481/jkges.2011.12.12.8

A Feasibility Study on Resilient Modulus of Expanded Polystyrene (EPS) Geofoam as a Flexible Pavement Subgrade Material  

Park, Ki-Chul (동서대학교 건축토목공학부)
Chang, Yong-Chai (목포해양대학교 해양시스템공학부)
Publication Information
Journal of the Korean GEO-environmental Society / v.12, no.12, 2011 , pp. 63-70 More about this Journal
Abstract
Expanded Polystyrene (EPS) is a type of geosynthetic material manufactured with various strengths, unit weights, and dimensions. Due to recent advances in research on EPS, the use of EPS has increased dramatically. This super light weight material has a unit weight of approximately $0.16{\sim}0.47kN/m^3$, equivalent to 6.3~15.7 of that of most natural soils with conditions of fill materials. In spite of this advantage, it is noted that no standard method of resilient modulus test on EPS geofoam was reported and no literature on resilient modulus test methods for EPS geofoam exist. The main object of this study was to investigate feasibility of the resilient modulus of EPS when it was applied for flexible pavement. The investigation of the feasibility was completed based on the results from triaxial tests.
Keywords
EPS geofoam; Resilient modulus; Flexible pavement; Subgrade; Triaxial test;
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