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International Journal for Multiscale Computational Engineering
Facteur d'impact: 1.016 Facteur d'impact sur 5 ans: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Imprimer: 1543-1649
ISSN En ligne: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v8.i1.90
pages 113-129

Effects of High Temperature on Mesoscale Properties of Concrete

Petr Kabele
Czech Technical University in Prague, Faculty of Civil Engineering, Thakurova 7, 166 29 Praha 6, Czech Republic
Jaroslav Pekar
Czech Technical University in Prague, Faculty of Civil Engineering, Thakurova 7, 166 29 Praha 6, Czech Republic
Jiri Surovec
Czech Technical University in Prague, Faculty of Civil Engineering, Thakurova 7, 166 29 Praha 6, Czech Republic

RÉSUMÉ

This paper presents a complete experimental methodology for identification of parameters that are necessary for mesoscale numerical modeling and analysis of damage and degradation of concrete at high temperatures. For this purpose, a series of specialized mesoscale experiments are devised and carried out. The experiments target mechanical and fracture properties as well as characteristics of heat transfer of the main mesoscopic phases of concrete, namely, cement mortar, limestone aggregate, and their interface. The tests are conduced on samples that were exposed both to room environment and high temperatures. Results are presented in terms of temperature-dependent material characteristics.

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