Effect of lubricated-end-platens on the behavior of cemented paste backfill under triaxial loading

M. Jafari, M. Shahsavari, M. Grabinsky

In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC

Session: Soil Mechanics and Foundations (Advances in Laboratory Testing II)

ABSTRACT: One of the most important factors that affects the behavior of Cemented Paste Backfill (CPB) under triaxial loading mode is the effect of stress non-uniformities during the test. In the triaxial test using the fixed ends, the stress and strain distributions are not uniform through the specimen which makes the interpretation of the data difficult. In this study, to overcome this issue and study the behavior of Cemented Paste Backfill (CPB) at large strains, two lubricated-end-platens were designed and fabricated. The results achieved from triaxial tests with lubricated-end platens on CPB specimens at different curing times prove the applicability of lubricated-end platens in minimizing the deformation non-uniformity in large strains.

RÉSUMÉ: Un des facteurs les plus importants qui affecte le comportement de remblai à pâte cimenté (RPC) sous chargement triaxial pendant les essais est le caractère non uniforme des contraintes. La distribution de contrainte-e. Dans la présente étude, deux plaques aux extrémités lubrifiées ont été conçues et fabriquées afin de surmonter ces des échantillonde non uniformité dans les larges déformations.

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Cite this article:
M. Jafari; M. Shahsavari; M. Grabinsky (2018) Effect of lubricated-end-platens on the behavior of cemented paste backfill under triaxial loading in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.

@article{geo2018Paper593,author = M. Jafari; M. Shahsavari; M. Grabinsky,title = Effect of lubricated-end-platens on the behavior of cemented paste backfill under triaxial loading ,year = 2018}