CUED Publications database

Mortar as a model to predict self-compacting concrete rheological properties as a function of time and temperature

Gołaszewski, J and Kostrzanowska-Siedlarz, A and Cygan, G and Drewniok, M (2016) Mortar as a model to predict self-compacting concrete rheological properties as a function of time and temperature. Construction and Building Materials, 124. pp. 1100-1108. ISSN 0950-0618

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Abstract

© 2016 Elsevier Ltd The design of self-compacting concrete (SCC) is a time consuming and expansive process. We propose a new method for designing SCCs from equivalent mortars. For the purpose of this research, we investigated four methodologies to design equivalent mortars. They are all based on the assumption that the fresh materials, mortar and concrete can both be described as Bingham fluids. Thus, the measure of the rheological parameters of the mortars can be directly related to the equivalent parameters in concrete. Good models exhibit the same sensitivity as concrete to temperature, choice of superplasticizer and w/c changes as concrete. We propose two methods which conserve the w/c of concrete by calculating the appropriate paste-to-aggregate ratio. The results were validated experimentally for 3 temperatures, 2 superplasticizers, 2 cement types and 2 w/c ratios.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:37
Last Modified: 05 Sep 2017 01:50
DOI: