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Mechanical behaviour of repair mortars / Abdenour Alliche in European journal of environmental and civil engineering, Vol. 16 Supplément N° 1 (Juin 2012) 

Public ISBD [article]  in European journal of environmental and civil engineering > Vol. 16 Supplément N° 1 (Juin 2012) . - pp. s64-s77 Titre : Mechanical behaviour of repair mortars Type de document : texte imprimé Auteurs : Abdenour Alliche, Auteur ; Amjad Mallat, Auteur Année de publication : 2012 Article en page(s) : pp. s64-s77 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Repair  mortars  Mechanical  behaviour  Interfacial  zone  Bond  strength Résumé : We investigate two repair mortars using mechanical tests specifically developed for this type of material. The first is a fibre reinforced lime-based mortar, which contains thickening agent and limestone additions. The second is a fibre reinforced ordinary mortar, which contains a small quantity of silica fume and additives. The mechanical characterisation of the materials is based on tension, compression and three-point bending tests. The bond between the repair mortars and substrate was investigated by slant shear and flexural bonding tests. The results obtained have demonstrated the influence of the surface roughness and moisture conditions on the bond strength. Finally, scanning electron microscope observations have showed the morphology of the repair mortar-to-substrate interfacial zone. ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/full/10.1080/19648189.2012.681958 [article] Mechanical behaviour of repair mortars [texte imprimé] / Abdenour Alliche, Auteur ; Amjad Mallat, Auteur . - 2012 . - pp. s64-s77. Génie Civil Langues : Anglais (eng) in European journal of environmental and civil engineering > Vol. 16 Supplément N° 1 (Juin 2012) . - pp. s64-s77 Mots-clés : Repair  mortars  Mechanical  behaviour  Interfacial  zone  Bond  strength Résumé : We investigate two repair mortars using mechanical tests specifically developed for this type of material. The first is a fibre reinforced lime-based mortar, which contains thickening agent and limestone additions. The second is a fibre reinforced ordinary mortar, which contains a small quantity of silica fume and additives. The mechanical characterisation of the materials is based on tension, compression and three-point bending tests. The bond between the repair mortars and substrate was investigated by slant shear and flexural bonding tests. The results obtained have demonstrated the influence of the surface roughness and moisture conditions on the bond strength. Finally, scanning electron microscope observations have showed the morphology of the repair mortar-to-substrate interfacial zone. ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/full/10.1080/19648189.2012.681958