In Literature, the Rheological Properties of Concrete Have Been Investigated Thoroughly, resulting in a Simple Description, in Steady State, by Means of the Bingham Model. Self-Compacting Concrete Shows a Lower Yield Stress, Which in Some Cases is Very Close to Zero, or Can Even Appear to Be Negative When Extrapolating the Bingham Model. in the Latter Case, the Bingham Model is Not Valid and Other Solutions Must Be Found. in This Paper, the Non-Linearity - or Shear Thickening - in the Rheological Behavior of Fresh SCC is Described with the Modified Bingham Model, after the Elimination of Possible Measurement Artefacts. Analysis Indicates that Shear Thickening is Mainly Correlated with the Type of Superplasticizer, the Type of Filler, the W/P-Ratio and the Slump Flow of the Concrete. © 2008 Elsevier Ltd. All Rights Reserved.
D. Feys et al., "Fresh Self Compacting Concrete, a Shear Thickening Material," Cement and Concrete Research, vol. 38, no. 7, pp. 920 - 929, Elsevier, Jul 2008.
The definitive version is available at https://doi.org/10.1016/j.cemconres.2008.02.008
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Fresh self compacting concrete; Modified Bingham model; Rheology; Shear thickening
International Standard Serial Number (ISSN)
Article - Journal
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01 Jul 2008