Etude de l'adhérence armature-béton, influence des granulats de béton recyclé et apport des mesures acoustiques

Abstract : The use of recycled concrete aggregate (i.e. aggregate produced from concrete demolition rubble) has a significant impact on the mechanical behavior of reinforced concrete members. This work focuses on the influence of recycled concrete aggregate on rebar-concrete bond. First, an analytical madel of the rebar-concrete bond is developed. The original feature of this modellies in the limited number of non-free physically-based parameters on which it is based. These parameters are then experimentally determined through a pull out test campaign. Three types of concrete, including two recycled aggregate concretes, are studied. Pull-out test monitoring is completed by acoustic measurements in order to obtain data from inside the concrete bulk, where the reinforcing bar is located.
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Léon Chiriatti. Etude de l'adhérence armature-béton, influence des granulats de béton recyclé et apport des mesures acoustiques. Génie civil. Université de Strasbourg, 2018. Français. ⟨NNT : 2018STRAD040⟩. ⟨tel-02166358⟩

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