Auteur Stéphane Poyet
Documents disponibles écrits par cet auteur (5)
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Article : texte imprimé
Stéphane Poyet, Auteur ; Patrick Le Bescop, Auteur ; Magalie Pierre, Auteur |We have focused on the test conditions influence on accelerated degradation of cementitious materials using ammonium nitrate. PH-buffering and renewal of the leaching solution were studied. PH-buffering appeared not to be very important when the[...]
Article : texte imprimé
Experimental investigation of the effect of temperature on the first desorption isotherm of concrete
In the framework of the radioactive waste management in France, interim storage concrete structures should be submitted to temperatures up to 80 °C and subsequent desiccation. The impact of temperature on the sorption properties of concretes has[...]
Article : texte imprimé
Thomas de Larrard, Auteur ; Stéphane Poyet, Auteur ; Magalie Pierre, Auteur |This study proposes two models for accelerated leaching in ammonium nitrate under variable temperature. The first approach assumes a thermoactivated linear relationship between degradation and the square root of time. The second approach introdu[...]
Article : texte imprimé
Stéphane Poyet, Auteur ; Sébastien Charles, Auteur |In the field of radioactive waste management the concrete structures are expected to undergo significant heating due to the waste thermal power and significant drying (in the French design, the temperature is not expected to exceed 80 °C). The d[...]
Article : texte imprimé
Sébastien Charles, Auteur ; Valérie L'Hostis, Auteur ; Stéphane Poyet, Auteur |Corrosion is the major cause of reinforced concrete structures degradation: the pressure generated by oxides formation together with section loss can eventually lead to cracking and the fall in the structure bearing capacity and then jeopardize [...]
