Effects of Protective Methods Against Salt Damage for New Prestressed Concrete Bridge

ABOUT THE 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.

International Concrete Abstracts Portal

  


Title: Effects of Protective Methods Against Salt Damage for New Prestressed Concrete Bridge

Author(s): Y. Takizawachlorides

Publication: Special Publication

Volume: 179

Issue:

Appears on pages(s): 301-316

Keywords: chlorides; corrosion; damage; prestressed concrete; sodium chloride;steels; waterproofing

Date: 6/1/1998

Abstract:
This report documents a survey conducted for the purpose of evaluating the concrete protection effects of chloride attackmeasures applied to a newprestressed concrete bridge locatedin a chloride attack environment. The chloride attack measures which consisted of (1) applying a concrete protection lining, and (2) installing waterproofing panels, were performed on different girders of the same bridge, respectively. Then, roughly twelve years after the time of construction, the protection effects of each method were evaluated based on appearance, chloride content and chipping surveys. Both methods were found to have sufficient barrier effects against the ingress of corrosive factors into the concretefromthe outside.