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- Thesis; University of North Florida; UNF; Dissertations; Academic -- UNF -- Master of Science in Civil Engineering; Dissertations; Academic -- UNF -- Engineering; Carbon fiber reinforced plastics; Concrete beams -- Maintenance and repair; Girders -- Maintenance and repair; Prestressed concrete -- Testing; Reinforced concrete -- Testing (1)
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Bridge Deck Cracking Investigation And Repair, Vidal Velez Vargas
Bridge Deck Cracking Investigation And Repair, Vidal Velez Vargas
UNF Graduate Theses and Dissertations
The focus of this study is to investigate the cracking of concrete bridge decks and the sealants used in repairing transverse cracks. Cracking could occur in both hardened mature concrete and early age concrete. Several factors affect concrete cracking, such as age-dependent material properties, thermal- and moisture-related stresses and strains, material viscoelastic behavior, restraints, concrete expansion and contraction, casting sequence, formwork, material characteristics, and environmental exposure. The causes of early age cracking are primarily attributed to effects such as plastic shrinkage, temperature effects, autogenous shrinkage, and drying shrinkage. This deck cracking could greatly reduce durability, lead to a loss of …
The Repair Of Laterally Damaged Concrete Bridge Girders Using Carbon Fiber Reinforcing Polymers (Cfrp), Matthew Kent Graeff
The Repair Of Laterally Damaged Concrete Bridge Girders Using Carbon Fiber Reinforcing Polymers (Cfrp), Matthew Kent Graeff
UNF Graduate Theses and Dissertations
In recent years the use of carbon fiber reinforcing polymers (CFRP) to repair damaged structural components has become more accepted and practiced. However, the current reference for designing FRP systems to repair and strengthen reinforced concrete (RC) and prestressed concrete (PSC) girders has limitations. Similarly, very few resources address solutions for the debonding problem associated with CFRP laminates or the use of CFRP laminates to repair structural members with pre-existing damage. The included experimental program consists of testing both RC and PSC girders with simulated lateral damage and CFRP repairs. A total of 34 RC beams were statically tested under …