Prestressed Concrete Bridges in Adverse Environments

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Title: Prestressed Concrete Bridges in Adverse Environments

Author(s): Vladamir Novokshchenov

Publication: Concrete International

Volume: 13

Issue: 5

Appears on pages(s): 43-48

Keywords: bridges (structures); chlorides; corrosion; cover; environments; failure; prestressed concrete; General

Date: 5/1/1991

Abstract:
Presents the results of a literature survey of prestressing steel failure in bridge members exposed to potentially aggressive environments. The main cause of corrosion of prestressing tendons is the ingress of moisture laden with corrosion-inducing agents. Brittle failure of reinforcing steel can occur due to pitting corrosion and two types of stress corrosion cracking (hydrogen embrittlement and fatigue corrosion).