Conference proceeding
The compressive creep behavior of an expanded polystyrene geofoam
GEOSYNTHETICS, VOLS 1-4, p1639
01 Jan 2006
Abstract
Expanded polystyrene (EPS) geofoams are used as a lightweight fill in many geotechnical applications. The creep behavior was evaluated using three different creep test methods; stepped isothermal method (SIM), short-term time-temperature superposition (TTS) with dwell time of 10(4) seconds, and longterm creep test method. The results indicated that the SIM test had limited applicability for the EPS geofoam due to the temperature and accumulated strain effects at temperature above 44 degrees C. For the short-term TTS test, the resulting creep master curve exhibited a reasonable match with the long-term creep curve. Furthermore, the activation energy for the creep mechanism obtained from the short-term TTS tests was close to that published in the literatures at temperature below 43 degrees C. However, the activation energy was much lower at temperature above 43 degrees C, suggesting creep mechanism was changed.
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Details
- Title
- The compressive creep behavior of an expanded polystyrene geofoam
- Creators
- S. -S. Yeo - Drexel Univ, Dept Civil Architectural & Environm Engn, Philadelphia, PA 19104 USAY. G. Hsuan - Drexel University
- Contributors
- J Kuwano (Editor)J Koseki (Editor)
- Publication Details
- GEOSYNTHETICS, VOLS 1-4, p1639
- Publisher
- Millpress Science Publishers
- Number of pages
- 2
- Grant note
- Center for Polymer Reinforced Structures (CPReS) of Geosynthetic Institute (GSI) GSI fellowship
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Identifiers
- 991019170336204721
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- Engineering, Geological