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Communication Dans Un Congrès Année : 2015

Effect of cement type on pore pressure, temperature, and mass loss of concrete heated up to 800 °C

Résumé

Pore pressure, temperature, and mass (PTM) tests up to 800 °C have been carried out on concrete specimens made with CEM III cement. Tests were carried out according to the test methods described by Kalifa and co-workers [1]. The present paper discusses the influence of cement type on the experimental results. Prismatic concrete specimens size of 300 x 300 x 120 mm3 were manufactured in the laboratory conditions using CEM III/A 42.5 cement and the results were compared with CEM II/A 42.5 cement concrete. Three different thermal loads of slow heating up to 600 °C (after 1 hour of heating), moderate heating up to 600 °C (after 5 minutes), and rapid heating up to 800 °C (after 5 minutes) were applied and these temperatures were maintained for 6 hours. After 6 hours of stabilization, samples were naturally cooled down to the room temperature. The temperature, pressure, and mass loss were measured simultaneously during the test. Measured pore pressures were lower than 1 MPa for CEM III tested concrete specimens. These pore pressures are about half of the ones determined on CEM II concrete specimens due to its higher value of permeability at all the heating levels.

Domaines

Génie civil
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Dates et versions

hal-01167571 , version 1 (24-06-2015)

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  • HAL Id : hal-01167571 , version 1

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Md Jihad Miah, Pierre Pimienta, Hélène Carré, Nicolas Pinoteau, Christian La Borderie. Effect of cement type on pore pressure, temperature, and mass loss of concrete heated up to 800 °C. Rencontres Universitaires de Génie Civil, May 2015, Bayonne, France. ⟨hal-01167571⟩
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