Fire Performance of FRP Systems for Infrastructure: A State-of-the-Art Report

Widespread deterioration of infrastructure resulting from corrosion of reinforcing steel in concrete has led recently to the use of fibre reinforced polymers (FRPs) in a number of infrastructure applications. A significant research effort over the past fifteen years has shown that FRP materials can be effectively used to reinforce and/or strengthen deteriorated or under strength reinforced concrete structures. However, the performance of FRP materials in fire remains a serious concern, which needs to be addressed before these materials can be used with confidence in applications where fire endurance is a design criterion (i.e. buildings, parking garages, etc.). This report presents a review of the literature with respect to the fire and high temperature behaviour of FRP composites as is relevant to the design and construction of FRP-strengthened or reinforced concrete structures.Le probl\ue8me de la d\ue9t\ue9rioration g\ue9n\ue9rale des infrastructures r\ue9sultant de la corrosion de l?acier d?armature dans le b\ue9ton a men\ue9 r\ue9cemment \ue0 l?utilisation des polym\ue8res renforc\ue9s de fibres (PRF) dans plusieurs applications li\ue9es aux infrastructures. Depuis les quinze derni\ue8res ann\ue9es, un effort de recherche consid\ue9rable a permis de mettre au jour que les mat\ue9riaux \ue0 base de PRF pouvaient \ueatre utilis\ue9s avec profit pour renforcer et/ou solidifier les structures en b\ue9ton arm\ue9 d\ue9t\ue9rior\ue9es ou affaiblies. Toutefois, la tenue au feu des mat\ue9riaux \ue0 base de PRF demeure une importante source de pr\ue9occupation, \ue0 laquelle il sera n\ue9cessaire de rem\ue9dier avant que ces mat\ue9riaux puissent \ueatre exploit\ue9s sans inqui\ue9tude dans des applications o\uf9 la r\ue9sistance \ue0 l?incendie demeure un crit\ue8re de conception (b\ue2timents, garages de stationnement, etc.). Ce rapport pr\ue9sente un examen de la documentation se rapportant \ue0 la tenue au feu et au comportement aux temp\ue9ratures \ue9lev\ue9es des mat\ue9riaux composites \ue0 base de PRF qui sont utilis\ue9s pour la conception et la construction de structures en b\ue9ton arm\ue9 ou renforc\ue9 de PRF.Peer reviewed: NoNRC publication: Ye