Effect of adhesive thickness and concrete strength on FRP-Concrete Bonds

López González, Julio César; Fernandez Gomez, Jaime Antonio y González Valle, Enrique (2012). Effect of adhesive thickness and concrete strength on FRP-Concrete Bonds. "Journal of Composites for Construction", v. 16 (n. 6); pp. 705-711. ISSN 1090-0268. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000303.

Descripción

Título: Effect of adhesive thickness and concrete strength on FRP-Concrete Bonds
Autor/es:
  • López González, Julio César
  • Fernandez Gomez, Jaime Antonio
  • González Valle, Enrique
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Composites for Construction
Fecha: Diciembre 2012
Volumen: 16
Materias:
Escuela: E.T.S.I. Caminos, Canales y Puertos (UPM)
Departamento: Ingeniería Civil: Construcción
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The use of fiber-reinforced polymer (FRP) composites for strengthening, repairing, or rehabilitating concrete structures has become more and more popular in the last 10 years. Irrespective of the type of strengthening used, design is conditioned, among others, by concrete-composite bond failure, normally attributed to stress at the interface between these two materials. Single shear, double shear, and notched beam tests are the bond tests most commonly used by the scientific community to estimate bond strength, effective length, and the bond stress-slip relationship. The present paper discusses the effect of concrete strength and adhesive thickness on the results of beam tests, which reproduce debonding conditions around bending cracks much more accurately. The bond stress-slip relationship was analyzed in a cross section near the inner edge, where stress was observed to concentrate. The ultimate load and the bond stress-slip relationship were visibly affected by concrete strength. Adhesive thickness, in turn, was found to have no significant impact on low-strength concrete but a somewhat greater effect on higher strength materials.

Más información

ID de Registro: 16829
Identificador DC: http://oa.upm.es/16829/
Identificador OAI: oai:oa.upm.es:16829
Identificador DOI: 10.1061/(ASCE)CC.1943-5614.0000303
URL Oficial: http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29CC.1943-5614.0000303
Depositado por: Memoria Investigacion
Depositado el: 25 Nov 2013 13:46
Ultima Modificación: 21 Abr 2016 17:11
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