A viscometric study of cement pastes containing superplasticizers with a note on experimental techniques

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Abstract
Synopsis Viscometric data on the influence of concentration of two superplasticizing admixtures upon the yield value and plastic viscosity of pastes made with four cements are reported. Yield value decreases exponentially with concentration, whilst plastic viscosity decreases linearly. These results are discussed in relation to the effect of superplasticizers upon the rheology of fresh concrete. Detailed differences in results obtained in viscometers of different geometries are reported and discussed.

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