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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: Condition Survey of Prestressed Concrete Bridges
Author(s): Vladimir Novokshchenov
Publication: Concrete International
Appears on pages(s): 60-68
Keywords: bridges (structures); concrete durability; corrosion; cover; deicers; drainage; joints (junctions); post-tensioning; prestressed concrete; prestressing steels; pretensioning; salts; surveys; General
Abstract:Results of a study of prestressed concrete bridge structures exposed to a deicing salt environment are presented. In-service bridges incorporating pre- and post-tensioned systems were sampled and results indicated that the primary cause of deterioration of prestressed members was penetration of runoff water containing deicing salts through concrete cover and through anchorage zones. Improperly designed and maintained joints and drainage systems were the primary pathways for salt ingress. Procedures, parameters, and threshold values for detection of corrosive environments and assessing the condition of prestressing steel in bridge components also are discussed.
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