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Time-dependent bond behavior between NSM CFRP strips and concrete

Comunicació de congrés presentada a: Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures-SMAR- (4rt: 13-15 setembre 2017: Zuric, Suïssa)

Although some studies have been carried out to understand the long-term bond performance of concrete structures strengthened with Near Surface Mounted (NSM) Fiber Reinforced Polymers (FRPs), which is being considered an important design aspect of safe design, there is still more effort required. This work presents an experimental campaign to investigate the effect of sustained load, bonded length and groove width on the time-dependent behavior of concrete strengthened with NSM CFRP strips. Single shear pull-out tests have been carried out. Both instantaneous and time-dependent slip values were found to be affected by the investigated parameters, and the increase of slip due to bond deterioration was more accentuated in those specimens loaded at 50% of sustained load than those at 25%

International Union of Laboratories and Experts in Construction Materials, Systems and Structures

Author: Emara, Mohamed Reda Ali Elewa
Baena Muñoz, Marta
Barris Peña, Cristina
Torres Llinàs, Lluís
Moawad, Mohamed
Perera, Ricardo
Date: 2017
Abstract: Comunicació de congrés presentada a: Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures-SMAR- (4rt: 13-15 setembre 2017: Zuric, Suïssa)
Although some studies have been carried out to understand the long-term bond performance of concrete structures strengthened with Near Surface Mounted (NSM) Fiber Reinforced Polymers (FRPs), which is being considered an important design aspect of safe design, there is still more effort required. This work presents an experimental campaign to investigate the effect of sustained load, bonded length and groove width on the time-dependent behavior of concrete strengthened with NSM CFRP strips. Single shear pull-out tests have been carried out. Both instantaneous and time-dependent slip values were found to be affected by the investigated parameters, and the increase of slip due to bond deterioration was more accentuated in those specimens loaded at 50% of sustained load than those at 25%
Format: application/pdf
Document access: http://hdl.handle.net/10256/17765
Language: eng
Publisher: International Union of Laboratories and Experts in Construction Materials, Systems and Structures
Collection: Contribucions a Congressos (D-EMCI)
Rights: Tots els drets reservats
Subject: Assaigs de materials
Materials -- Testing
Formigó armat -- Proves
Reinforced concrete -- Testing
Resistència de materials
Strength of materials
Title: Time-dependent bond behavior between NSM CFRP strips and concrete
Type: info:eu-repo/semantics/conferenceObject
Repository: DUGiDocs

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