Abstract
In the present work, rheological behaviour of a fine particulate fly ash slurry suspension is studied with and without addition of an additive. Rheological experiments are performed for the range of shear rate from <i>50</i> to <i>200 s</i><i>1</i>. Sodium sulfate is used as an additive in the fraction of <i>0.2</i>, <i>0.4</i> and <i>0.6</i>% (by weight). Addition of sodium sulfate to the fly ash slurry suspension leads to an improvement of its rheological characteristics. A reduction in relative viscosity and pressure drop is more pronounced with the addition of sodium sulfate in proportion of <i>0.4</i>%, while marginal with <i>0.2</i> and <i>0.6</i>% (by weight). The analysis reveals that the fly ash suspension has a potential to for being transported in a slurry pipeline with higher concentration and minimum energy consumption.
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