Abstract
Design and construction of geotechnical projects with EPS geofoam can involve consideration of interactions between structures, surrounding soils and geofoam blocks. Within large volume installations of geofoam blocks there can be unintended variability in block densities. Such conditions can lead to non-uniformities in stress distribution and development of uneven deformations. This study examines the effects of mixed use of geofoam density grades on stress-strain behavior in laboratory test settings. Interface loads at both geofoam to rigid plate and geofoam to geofoam mating surfaces were observed with FlexiForce sensors. Both uniform low and high density configurations were tested. Effects of mixing densities were also examined for both one and two layer block configurations.
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References
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ASTM D 6817
Acknowledgements
The authors gratefully acknowledge the assistance of Tekscan whose FlexiForce sensors enabled observation of interface loads. R. Chave, J. Banas and W. Dossert helped with setting up test equipment and data acquisition systems.
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Liu, C., Negussey, D. (2019). Stress-Strain Behavior of EPS Geofoam with Multiple Grades by Using FlexiForce Sensors. In: Arellano, D., Özer, A., Bartlett, S., Vaslestad, J. (eds) 5th International Conference on Geofoam Blocks in Construction Applications. Springer, Cham. https://doi.org/10.1007/978-3-319-78981-1_18
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DOI: https://doi.org/10.1007/978-3-319-78981-1_18
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