Structuration In Polymer Amended Oil Sands Fine Tailings
Muhammad Asif Salam, Banu Örmeci, Paul H. Simms 
Dans les comptes rendus d’articles de la conférence: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC Session: Mining Geotechnics and Hydrogeology II
ABSTRACT: Although void ratio-effective stress relationship and hydraulic conductivity-void ratio relationship are the two most important properties that govern the consolidation behaviour of oil sands tailings in tailings ponds, the phenomena of creep and thixotropy in tailings also could affect its compression behaviour significantly. Reporting on ongoing experimental investigations of creep/thixotropic behaviour of polymer amended fluid fine tailings, this paper presents findings from a new batch of experiments conducted using different polymer types and doses, different boundary conditions, and different scales of tests. The experiments included column dewatering tests with pore water pressure measurements, advanced rheology tests, oedometer tests, zeta potential, mercury intrusion porosimetry, and low vacuum SEM and optical microscopy. The tailings exhibited structuration (change in fabric and the associated increase in apparent pre-consolidation pressure) seen in some natural clays.
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Salam, Muhammad Asif, Örmeci, Banu, Simms, Paul H. (2018) Structuration In Polymer Amended Oil Sands Fine Tailings in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Salam_GEO2018_549,
author = {{Salam, Muhammad Asif}, {Örmeci, Banu}, {Simms, Paul H.}}
title = {Structuration In Polymer Amended Oil Sands Fine Tailings}
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Structuration In Polymer Amended Oil Sands Fine Tailings}
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }