Engineering Mechanics

International Conference

Proceedings Vol. 12 (2006)


May 15 – 18, 2006, Svratka, Czech Republic
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2006 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, Prague

ISBN 80-86246-27-2 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Model of concrete at the early ages
M. Frantová, O. Lojkásek
pages 68 - +5p., full text

The mechanical behaviour of solidifying and further hardening concrete is influenced by the rapidly progressing hydration which makes the experimental work difficult and as a result there is few experimental data for concrete at such early ages. Since the Chen model of plasticity is very suitable for modelling of hardened concrete due to the different strengths considered in compression and tension, it was sought to make use of this model also for description of mechanical behaviour of hardening concrete. The material parameters considered in the modelling have to be dependent on the progressing hydration. The hydration is quantified with help of the degree of hydration. The performance of the modified Chen model of plasticity is described in an illustrative example.

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All papers were reviewed by members of the scientific committee.

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