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Accurate estimation of the rheological properties of self-compacting concrete

Karihaloo, Bhushan, Kulasegaram, Sivakumar and Badry, Firas 2015. Accurate estimation of the rheological properties of self-compacting concrete. Presented at: 14th International Congress on the Chemistry of Cement (ICCC 2015), Beijing, China, 13-16 October 2015.

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Abstract

We describe how the rheological properties of self-compacting concrete (SCC), namely its yield stress and plastic viscositycan be accurately estimated. Currently these properties are measured using a rheometer, but these measurements are unreliablebecause they are very different depending on the rheometer used. This is to do with the heterogeneous nature of the SCC mix. To get areliable estimate of these properties, a micromechanical procedure is described for estimating the plastic viscosity of theheterogeneous mix from the plastic viscosity of the homogeneous viscous paste and the mix composition. The yield stress on the otherhand is estimated in an inverse manner from the measured t500 and flow spread of the mix in a cone flow test using thethree-dimensional smooth particle hydrodynamics (SPH) method for simulating the flow of SCC.

Item Type: Conference or Workshop Item (Paper)
Date Type: Completion
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Additional Information: http://www.iccc2015beijing.org/dct/page/70005 - there is a link on this website to the 'Scientific programme' with details of the time slot of this title.
Related URLs:
Last Modified: 04 Jun 2017 08:45
URI: http://orca.cf.ac.uk/id/eprint/84223

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