Cemented Paste Backfill Laboratory study: Sample preparation challenges

M. Jafari, M. Shahsavari, M. Grabinsky

In the proceedings of: GeoOttawa 2017: 70th Canadian Geotechnical Conference; 12th joint with IAH-CNC

Session: Mining - Underground and Backfill

ABSTRACT: A full understanding of the response of Cemented Paste Backfill (CPB) needs to have high quality in-situ samples. Coring and preparation of in-situ samples are so difficult from this material due to different factors such as low strength and high void ratio. These difficulties have led the researchers to study the response of artificially cemented soils, where consistent uniform samples can be produced in the laboratory scales. In this paper, difficulties of preparing high quality CPB samples in the laboratory scale will be discussed and some related improvements will be mentioned.

RÉSUMÉ: Une compréhension complète de la réponse contrainte-déformation du Remblai à Pâte Cimenté (RPC) nécessite des échantillons in situ de haute qualité. Le carottage et la préparation des échantillons est difficile avec ce matériau à cause des facteurs divers y compris sa faible résistance et son taux de porosité élevé. Ces difficultés ont mené les chercheurs à étudier la réponse des sols cimentés artificielles dont la productlaboratoire sont discutés et des améliorations à la méthode sont proposées.

Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.

Cite this article:
M. Jafari; M. Shahsavari; M. Grabinsky (2017) Cemented Paste Backfill Laboratory study: Sample preparation challenges in GEO2017. Ottawa, Ontario: Canadian Geotechnical Society.

@article{geo2017Paper815,author = M. Jafari; M. Shahsavari; M. Grabinsky,title = Cemented Paste Backfill Laboratory study: Sample preparation challenges,year = 2017}