Spalling under fire of ultra-high performance fibre concrete: Effect of polymer fibers

L. Missemer (1, 2) , E. Ouedraogo (1, 2) , Y. Malecot (1, 2) , D. Rogat (3) , C. Clergue (3)

1 3SR - Laboratoire sols, solides, structures - risques [Grenoble]
2 RV - Risques, Vulnérabilité des structures et comportement mécanique des matériaux
3 Centre Technique Louis VICAT

This article presents the first part of a study concerning the behaviour of ultra-high performance fibre concrete (UHPFC) under fire. Four kinds of synthetic fibres were added: polypropylene (PP), acrylic (PMMA), polyvinyl acetate (PVA) and polyethylene (PE). After a mechanical characterization of the material, blowtorch tests were performed on it. The expected efficiency of PP and PE fibres was observed. Microscopic observations enabled us to put forward a hypothesis regarding the efficiency of fibres in concrete. © 2010 Taylor & Francis Group, London.

Mots clés: Fibre concrete; Mechanical characterizations; Microscopic observations; Polymer fiber; Ultra-high performance; Polypropylenes; Polyvinyl acetates; Synthetic fibers; Thermoplastics; Loading

Domaines: Mécanique [physics.med-ph]

L. Missemer, E. Ouedraogo, Y. Malecot, D. Rogat, C. Clergue. Spalling under fire of ultra-high performance fibre concrete: Effect of polymer fibers. 6th International Conference on Concrete under Severe Conditions - CONSEC'10, 2010, Merida Yucatan, Mexico. pp.553-560. ⟨hal-01998307⟩