algerian journal of environmental science and technology
Volume 3, Numéro 3, Pages 544-550
2017-12-30
Valorisation Des Fraisât Routiers Et Produits De Démolition Pour La Fabrication De Mélanges Granulaires Traites Aux Liants Hydrauliques
Auteurs : Mezhoud S .
Résumé
The objectives of this work are to promote the act of valorization and to show the significant potential of recycled material in roads construction. In this aims, the above research will present an experimental study for making granular mixtures, hydraulically bounded (MGTLH) from two recycled materials that are: 1) concrete demolition products and 2) Reclaimed asphalt materials. To proceed several mixtures incorporating these materials were formulated and which are compared with a control mix based on naturel aggregates. Performance verifications focused on the ability to compaction via a Proctor study, and mechanical performances using unconfined compressive strength, tensile test device and indirect measurements of elastic modulus values. Finally deformations of produced MGTLH are checked through measurement of the total shrinkage. The results obtained show that the incorporation of these materials present lower performance that the control mix. However, remains significant and encouraging their admittance in the roads construction.
Mots clés
Demolition products; Asphalt millings; Reclaimed aggregate; Recycling.
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