Concrete creep and micromechanics: challenges and ongoing investigations at EDF

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• Julian Sanahuja, EDF
• Friday 12 March 2021, 15:00-16:00
• Zoom (email structures-admin@eng.cam.ac.uk for link).

If you have a question about this talk, please contact Dr Maria Marques de Carvalho.

Creep is a fundamental component of concrete mechanical behavior, especially regarding civil engineering structures involved in electricity production. This presentation proposes a few insights on concrete creep modeling from physical processes. First, a morphological model of hydrating cement paste is developed and validated on stiffness measurements. Special attention is paid to the evolving nature of the microstructure. Second, this model is extended to basic creep, where ageing stems from the ongoing hydration reactions. The challenges associated to building a micromechanical model of a microstructure-evolving material, in the framework of viscoelasticity, are overviewed. Third, a few other examples, beyond creep, of application of micromechanics to engineering issues are briefly presented.

This talk is part of the Engineering Department Structures Research Seminars series.

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