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Master of Science (MS)
Civil, Architectural and Environmental Engineering (Engineering)
Date of Defense
First Committee Member
Second Committee Member
Francisco J. De Caso y Basalo
Third Committee Member
The strengthening of deficient or damaged buildings with externally bonded (EB) FRP composites is a technique confirmed in terms of bearing capacity increase. Nevertheless, the lack of durability characterization of FRP composites when exposed to aggressive environments represents an obstacle to the total acceptance of the use of FRP in structural repairs. The main objective of this study is to provide a better understanding of the importance of the durability assessment. The objective is to address knowledge gaps about long-term performance in existing guidelines, which results in an incomplete understanding of which parameters affect the longevity of structures repaired with FRP. Carbon fiber and polymer-based resin specimens characterized by a different fiber and resin type were prepared and tested in the Structure and Materials Laboratory at University of Miami. Tests to characterize the FRP systems were based on the Acceptance Criteria (AC) 125. The research effort includes: tensile and shear bond tests with a concrete substrate. Specimens were exposed to different environments: (I) water, (II) saltwater, (III) alkali, (IV) dry heat, (V) freeze-thaw and a comparison between conditioned specimens and benchmark coupons was performed. Finally, a refinement of the current environmental reduction factors, presently reported in US guidelines, is proposed based on statistical analysis of the laboratory data and a comparison with findings available in literature.
Externally Bonded CFRP; Durability; Accelerated Conditioning
Dello Monaco, Francesca, "Durability of Externally Bonded CFRP Subjected to Accelerated Conditioning" (2015). Open Access Theses. 575.