Concrete properties at high temperature. Complete characterization of 2 concretes: B40 and B60

J.-C. Mindeguia (1) , Pierre Pimienta (2) , K. Mroz (3) , Hélène Carré (4) , Christian La Borderie (4)

1 I2M - Institut de Mécanique et d'Ingénierie
2 CSTB - Centre Scientifique et Technique du Bâtiment
3 Cracow University of Technology
4 SIAME - Laboratoire des Sciences de l'Ingénieur Appliquées à la Mécanique et au génie Electrique

The report presents concretes properties at high temperature of 2 concretes B40 and B60. These properties have been studied extensively in the frame of several research and expertise projects, including thesis projects. The report provides the composition of the 2 concretes and their constituents, mass transport properties (porosity, permeability...), thermal properties, mechanical properties (strength, thermal strain, transient thermal strain, fracture energy...). In addition, the report includes the results from pore pressure and mass loss measurements (PTM) at high temperature. Finally, a large number of tests have also been carried out on fire exposed intermediate-scale and large-scale specimens made from these 2 concretes

Mots clés: CONCRETE; HIGH TEMPERATURE; MASS TRANSPORT PROPERTIES; THERMAL PROPERTIES; MECHANICAL PROPERTIES; SPALLING

Mots clés: BETON; HAUTE TEMPERATURE; PROPRIETE THERMIQUE; PROPRIETE MECANIQUE; TRANSPORT DE MASSE; ECAILLAGE

Domaines: Mécanique des matériaux [physics.class-ph]; Sciences de l'ingénieur [physics]

J.-C. Mindeguia, Pierre Pimienta, K. Mroz, Hélène Carré, Christian La Borderie. Concrete properties at high temperature. Complete characterization of 2 concretes: B40 and B60. RILEM Technical Committee 256-SPF Spalling of concrete due to fire: testing and modelling. 2024, 35 p. ⟨hal-04573795⟩