EVALUATION OF PROTECTIVE COATINGS TO REDUCE CHLORIDE PENETRATION OF BRIDGE SURFACES

The objective of this project is to evaluate the effectiveness of six different protective coatings in protecting concrete from intrusion of chlorides and to evaluate the life-cycle cost and performance of the products compared to linseed oil. The bridge surface was divided into eight sections with linseed oil applied to two sections as controls. A silane in water, epoxy in solvent, epoxy in water, resin in mineral spirites, polyester resin, and high molecular weight methacrylate resin were used on the other sections. Cores wiill be removed within two months of construction and after two, three, and five years of service. The surface permeability and chloride content at two levels will be determined and these values will be used to evaluate the effectiveness of the sealant. (Author) (Author)

• Corporate Authors:

  Pennsylvania Department of Transportation

  Bureau of Bridge and Roadway Technology, T&S Bldg, Room 1009
  Harrisburg, PA  United States  17120

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Knight, N E
• Publication Date: 1985-2

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 13 p.

Subject/Index Terms

• TRT Terms: Alternatives analysis; Bridge decks; Chlorides; Epoxides; Linseed oil; Measures of effectiveness; Pendulum tests; Permeability; Polyester resins; Prevention; Protective coatings; Sealing compounds
• Uncontrolled Terms: Effectiveness
• Old TRIS Terms: Epoxy
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials; Security and Emergencies; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00450612
• Record Type: Publication
• Report/Paper Numbers: FHWA-PA-84-018, 83-41
• Contract Numbers: DTFH71-84-4605-PA-12
• Files: TRIS, USDOT, STATEDOT
• Created Date: Aug 27 2004 9:01PM