Garrido, PA & Diaz, RA 2009, 'Analysis of the Methodologies Used for Quantifying or Setting the Yield Stress of Copper Tailings', in R Jewell, AB Fourie, S Barrera & J Wiertz (eds), Proceedings of the Twelfth International Seminar on Paste and Thickened Tailings
, Australian Centre for Geomechanics, Perth, pp. 21-30, https://doi.org/10.36487/ACG_repo/963_3
Nowadays the aim of obtaining tailings in the form of consistent slurries is becoming increasingly
widespread. Due to this, it is now a must to specify the rheological features of all pulp suspensions with a
high solid content. This is particularly relevant when aiming at a process design and optimisation for both
the thickening and final disposal of such tailings alike. The specific objective of this paper is the comparison
of measurements undertaken with the use of a rotary rheometer and other techniques which are both low
cost and easy to implement. The methodologies considered range from rheometry (CR mode), slump tests,
Marsh cone and flume. The results obtained indicate that it is feasible to find a relationship between the flow
strain readings obtained with the rotary rheometer and the parameters derived from each of the alternative
methods considered; as well as the final height of the cone and cylinder in the case of the slump tests, the
flow time in the Marsh cone and the standstill angle in the flume tests.
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Paste 2009, Viña del Mar, Chile 29
Analysis of the Methodologies Used for Quantifying or Setting the Yield Stress of Copper Tailings P.A. Garrido and R.A. Diaz
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30 Paste 2009, Viña del Mar, Chile