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Development of a new composite slab system using a carbon fiber–blended cementitious adhesive / Isamu Yoshitake in Journal of structural engineering, Vol. 138 N° 11 (Novembre 2012) 

Public ISBD [article]  in Journal of structural engineering > Vol. 138 N° 11 (Novembre 2012) . - pp. 1321-1330 Titre : Development of a new composite slab system using a carbon fiber–blended cementitious adhesive Type de document : texte imprimé Auteurs : Isamu Yoshitake, Auteur ; Atsushi Ogawa, Auteur ; Yail J. Kim, Auteur Année de publication : 2013 Article en page(s) : pp. 1321-1330 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Adhesives  Bonding  Carbon  Composite  structures  Interfaces  Slabs  Slip Résumé : This paper presents an experimental study to develop a new composite slab system consisting of a concrete deck with reinforcing bars, steel plates welded with rib connectors, and a carbon fiber–blended cementitious adhesive. The adhesive has unique characteristics such as rust resistance and being waterproof and can be sprayed onto a steel substrate. The foci of the present research are bond performance of the adhesive, which is an interfacial medium between the concrete and steel plates, bond-slip response of the interface, and structure-level investigations. Test parameters include the presence of an adhesive layer, the age of the concrete-steel interface linked with the adhesive, and the configuration of rib connectors. Adequate curing time for the concrete-steel interface with the adhesive is found to take at least 7 days to achieve reasonable composite action. The adhesive layer significantly improves the performance of the interface, including bond slip and load-carrying capacities. The shape of perforation in the rib is not a significant factor on the behavior of the interface. Although the proposed composite concept is promising, progressive bond deterioration is an important consideration, and further research is necessary. ISSN : 0733-9445 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000574 [article] Development of a new composite slab system using a carbon fiber–blended cementitious adhesive [texte imprimé] / Isamu Yoshitake, Auteur ; Atsushi Ogawa, Auteur ; Yail J. Kim, Auteur . - 2013 . - pp. 1321-1330. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 11 (Novembre 2012) . - pp. 1321-1330 Mots-clés : Adhesives  Bonding  Carbon  Composite  structures  Interfaces  Slabs  Slip Résumé : This paper presents an experimental study to develop a new composite slab system consisting of a concrete deck with reinforcing bars, steel plates welded with rib connectors, and a carbon fiber–blended cementitious adhesive. The adhesive has unique characteristics such as rust resistance and being waterproof and can be sprayed onto a steel substrate. The foci of the present research are bond performance of the adhesive, which is an interfacial medium between the concrete and steel plates, bond-slip response of the interface, and structure-level investigations. Test parameters include the presence of an adhesive layer, the age of the concrete-steel interface linked with the adhesive, and the configuration of rib connectors. Adequate curing time for the concrete-steel interface with the adhesive is found to take at least 7 days to achieve reasonable composite action. The adhesive layer significantly improves the performance of the interface, including bond slip and load-carrying capacities. The shape of perforation in the rib is not a significant factor on the behavior of the interface. Although the proposed composite concept is promising, progressive bond deterioration is an important consideration, and further research is necessary. ISSN : 0733-9445 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000574