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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Comparison of Test Methods and Effect of Adhesive Coverage on Sustainability of Reinforced Concrete Structures Strengthened with Externally Bonded CFRP Materials
Author(s): Jennifer Eisenhauer Tanner, David Mukai, Jiangang Deng, and Charles W. Dolan
Publication: Special Publication
Appears on pages(s): 8.1-8.12
Keywords: CFRP, repair, strength, sustainability, durability, accelerated ageing
Abstract:Sustainability of CFRP materials is evaluated based on their long-term capacities that can be decreased by environmental exposure. Researchers regularly accelerate this process by various forms of hygrothermal conditioning. Results of both flexural and tension tests are presented. A comparison of flexural and direct tension test methods is proposed and compared to those obtained by other investigators. In addition, a simple predictive model is introduced. Accelerated ageing tests indicate that the sustainability of carbon fiber reinforced polymer (CFRP) repair systems is impacted by the coverage rate of adhesives. Test results indicate no change in strength for specimens with 91 to 233 percent of the manufacturer’s recommended adhesive application while accelerated ageing tests show a markedly lower strength for specimens with less than the manufacturer’s recommended coverage.
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