%0 Conference Paper %F Oral %T Representativeness of accelerated carbonation testing of cement pastes %+ Laboratoire d'Etude du Comportement des Bétons et des Argiles (LECBA) %+ Département Matériaux et Structures (IFSTTAR/MAST) %+ Laboratoire Structure et Dynamique par Résonance Magnétique (LCF) (LSDRM) %+ Agence Nationale pour la Gestion des Déchets Radioactifs (ANDRA) %A Auroy, Martin %A Poyet, Stéphane %A Le Bescop, Patrick %A Torrenti, Jean Michel %A Charpentier, Thibault %A Moskura, Mélanie %A Bourbon, Xavier %< avec comité de lecture %B XXII nordic Concrete Research Symposium %C Reykjavik, Iceland %P 447-450 %8 2014-08-13 %D 2014 %K Natural and Accelerated Carbonation %K Representativeness %K Cement %K Mineralogy %Z Chemical Sciences/Material chemistryConference papers %X Carbonation is one of the main factors involved in corrosion of reinforced concrete structures. The impact of carbonation on the durability of cementitious-based materials is of major importance. However, carbonation is a very slow process (around 0.04% CO2 in the atmosphere). Accelerated test are then commonly used in the laboratory. The representativeness of accelerated test compared to natural carbonation is then an important issue. In this context, this study focuses on the mineralogical characterisation of ancient and recent cement pastes, respectively submitted to natural (in air) and accelerated carbonation (3% CO2). As a major conclusion, the mineralogical changes assessed using complementary techniques have highlighted a good agreement between natural and accelerated carbonation. %G English %L cea-02361500 %U https://cea.hal.science/cea-02361500 %~ CEA %~ CNRS %~ ANDRA %~ IFSTTAR %~ PUBNIMBE %~ DEN %~ INC-CNRS %~ IRAMIS-NIMBE %~ DEN-SACLAY %~ IRAMIS %~ GS-PHYSIQUE %~ UNIV-EIFFEL %~ IFSTTAR-UNIVEIFFEL %~ MAST