The effect of amount and several different types of mineral admixtures on the yield stress and plastic viscosity of self-consolidating concretes

Document Type : Research Article

Authors

1 Associate Professor, Iran University of Science and Technology (IUST)

2 Assistant Professor, Iran University of Science and Technology (IUST)

3 M.Sc. in Construction and Engineering Management, Iran University of Science and Technology (IUST)

Abstract

The aim of this study was to evaluate the effect of self-consolidating concrete mixture components
on yield stress (static and dynamic yield stress) and plastic viscosity. Accordingly, mixtures with
different water-cement ratio and the amount of limestone powder (100, 150 and 200 kg/m3) were made.
In addition, cement has been replaced with different percentages of silica fume, slag and metakaolin.
Results show that increase in water to cement ratio cause decrease in yield stress and plastic viscosity.
On the other hand, increasing in limestone content leads to yield stress reduction. Over time, this yield
stress increased while the plastic viscosity of mixtures showed no significant change. By replacing the
silica fume, yield stress increased but plastic viscosity unchanged while metakaolin cause increasing in
both parameters.

Keywords

Main Subjects

References

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Amirkabir Journal of Civil Engineering
Volume 48, Issue 3
November 2016
Pages 249-260

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