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Towards complete recycling of concrete using microwave heating

Lippiatt, Nicholas and Bourgeois, Florent Towards complete recycling of concrete using microwave heating. (2011) In: XIIIème Congrès de la Société Française de Génie des Procédés - SFGP 2011, 29 Nov - 01 Dec 2011, Lille, France .

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Abstract

Recycling of concrete into high quality products requires the separation of the cement matrix, sand and aggregate particles. Microwave heating stands as a strong candidate for selective liberation of these constituents, either directly or as a pre-treatment to a comminution step, as it takes advantage of the many contrasts in properties of the phases: thermal, mechanical, electrical and dielectric. Rapid microwave heating generates stresses within the concrete, which may lead to crack formation at phase boundaries, yielding liberated constituents. This work is a contribution to demonstrating the potential of microwave treatment for the selective liberation of concrete components.

Item Type:Conference or Workshop Item (Paper)
Additional Information:XIIIème Congrès de la Société Française de Génie des Procédés - SFGP 2011: http://www.sfgp.asso.fr/ The SFGP events calendar can be reached through the web site: http://www.congres-sfgp.eu/sfgp2011/ This paper was published in Récents Progrès en Génie des Procédés, Numéro 101 - 2011. ISSN 1775-335X - ISBN 2-910239-75-6, Ed. SFGP, Paris, France
Audience (conference):National conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By:Nicholas richard Lippiatt

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