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<dc:title xml:lang="fr">Étude des propriétés de prise et du comportement mécanique des granulats de béton recyclé</dc:title>
<dcterms:alternative xml:lang="en">Investigation of the self-cementing properties and mechanical behaviour of recycled concrete aggregates</dcterms:alternative>
<dc:subject xml:lang="fr">Granulats de béton recyclé</dc:subject>
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<dc:subject xml:lang="fr">Propriétés autocimentantes</dc:subject>
<dc:subject xml:lang="fr">Essai triaxial à charge répétée</dc:subject>
<dc:subject xml:lang="fr">Déformation permanente</dc:subject>
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<dc:subject xml:lang="en">Self-cementing properties</dc:subject>
<dc:subject xml:lang="en">Repeated load triaxial test</dc:subject>
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<dcterms:abstract xml:lang="fr">La réutilisation des agrégats de béton recyclé (RCA) en remplacement des agrégats naturels (NA) dans les couches de base et de fondation des chaussées est devenue plus populaire ces dernières années. Parfois, une croissance de la rigidité et de la résistance dans les couches de base et de fondation non liées construites avec RCA peut être observée, ce qui est connu sous le nom de propriétés de prise résiduelle des RCA. Cependant, les propriétés de prise résiduelle et le comportement mécanique des RCA ne sont pas toujours étayés par les données d'essai. Cette thèse présente une étude sur les propriétés de la prise résiduelle, la microstructure et le comportement mécanique des RCA sous essai triaxial monotone et à charge répétée.</dcterms:abstract>
<dcterms:abstract xml:lang="en">The reuse of recycled concrete aggregates (RCA) as a substitution to natural aggregates (NA) in pavement base and subbase layers has become more popular in recent years. Occasionally, a growth of stiffness and strength in unbound base and subbase layers built with RCA can be observed, which is known as self-cementing properties of RCA. However, the self-cementing properties and mechanical behaviour of RCA still lack the support of test data. This dissertation presents an investigation on selfcementing properties, microstructure and mechanical behaviour of RCA under monotonic and repeated load triaxial tests.</dcterms:abstract>
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