ROUGELOT, Thomas; PENG, Cheng; BURLION, Nicolas; BERNARD, Dominique

doi:10.1080/19648189.2010.9693269

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ROUGELOT, Thomas
Laboratoire de Mécanique de Lille - FRE 3723 [LML]

PENG, Cheng
Laboratoire de Mécanique de Lille - FRE 3723 [LML]

BURLION, Nicolas
Laboratoire de Mécanique de Lille - FRE 3723 [LML]

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European Journal of Environmental and Civil Engineering. 2010, vol. 14, n° 6-7, p. 923-935

Taylor & Francis

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Short and long-term behaviors of concrete structures are of importance when dealing with durability aspects. One particular interesting aspect is the change in microstructure of concrete submitted to drying or leaching processes, and a potentially induced cracking pattern. Experimental investigations which focus on the effect of the dimensions of aggregates over cracks are proposed in this paper. The samples are submitted to accelerated leaching or to drying, and the evolution of their microstructure is regularly recorded by means of X-ray microtomography. A method is then proposed to study the cracking pattern, which appears to be greatly dependant of the size of inclusions. In particular, it appears that a larger diameter of inclusions tends to increase the crack opening.< Leer menos

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X-ray microtomography

cementitious materials

drying

leaching

damage

X-ray microtomography.

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Why is it necessary to use a damage model to simulate the mechanical behavior of concrete under drying and leaching?

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