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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: Cathodic Protection for Prestressed Structures
Author(s): Gee Kin Chou and Kenneth C. Hover
Publication: Concrete International
Appears on pages(s): 26-30
Keywords: cathodic protection; corrosion; prestressing steels; reinforced concrete; General
Abstract:Cathodic protection for reinforced concrete structures has been developed during the past 20 years and has proven to be successful on many full-scale projects. In light of this success, cathodic protection is being considered for control of corrosion in prestressing steel. The differences between conventionally reinforced structures and prestressed structures, in terms of the properties and arrangement of the materials, complicates the design of cathodic protection systems for prestressed structures. Significant issues include the lack of electrical continuity in prestressing steel, the danger of hydrogen embrittlement, difficulties in monitoring corrosion activity and system performance, assuring the distribution of a protective current, and the development of appropriate performance criteria. Currently, due to the variety and unique characteristics of prestressing systems, the applicability and design of cathodic protection systems must be evaluated specifically for each structure.
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