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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: Strengthening of Concrete Structures with Carbon Fiber-Reinforced Polymer and Results from Nondestructive Evaluation
Author(s): J. Parzych and P. Mtenga
Publication: Special Publication
Appears on pages(s): 999-1026
Keywords: adhesives; beam; bond; concrete (reinforced); corrosion; deterioration;
epoxy; repair; slab; strip; test
Abstract:There is an ever increasing need to strengthen concrete structures due to deterioration, construction errors, environmental effects, occupancy changes, design flaws and other reasons related to the structure. Externally applied carbon fiber reinforced polymer (CFRP) strips and sheets can be used to strengthen these structures. This technique offers many advantages to conventional methods such as being cost effective, ease of handling and allowing minimal impact to the structure. This paper presents a case study of the strengthening of a critical research facility using CFRP. It was imperative that the repair and strengthening did not impact the ongoing research in the !faciIity in any way. Preliminary testing and structural considerations of the damaged and deteriorated portions of structure are presented. In addition, this paper presents the results of a comprehensive post-strengthening testing program performed on the repaired facility. Non-Destructive Testing (NDT) techniques such as full-scale load testing, vibration analysis, and infrared thermography used to evaluate the repair process are presented and shown to be proven methods of verifying the application of the CFRP.
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