EVALUATION OF PROTECTIVE COATINGS TO REDUCE CHLORIDE PENETRATION OF BRIDGE SURFACES. FINAL REPORT

The objective of this project is to evaluate and compare the effectiveness of six different proprietary bridge deck coatings and linseed oil to protect concrete from the intrusion of chlorides, and also to evaluate the costs associated with purchasing and applying each coating. This project was constructed in 1984 by the Pennsylvania Department of Transportation on SR 0006 at the county line between Pike and Wayne counties. The six coatings and linseed oil were placed in individual sections of a four-span continuous steel I-beam bridge. The coatings or sealants evaluated are: Sinak Concrete Sealer #102, Stop Spall, Horsey Set/WDE, Hydrozo Clear 600, CVI Sealer Primer, and PCM 300. This report describes the method of application, application rates, material and application bid costs, as well as the rapid permeability and chloride content testing performed in the various coating sections. All of the proprietary coatings were far more expensive than linseed oil. Only Hydrozo Clear 600 performed consistently as well or better than linseed oil through the evaluation. Because of its high cost, it is questionable if even Hydrozo Clear 600 would be an economical alternative to linseed oil.

• 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:
  • Ballew, J W
  • Highlands, K L
• Publication Date: 1989-2

Media Info

• Features: Figures; References; Tables;
• Pagination: 17 p.

Subject/Index Terms

• TRT Terms: Bridge decks; Chlorides; Concrete; Costs; Linseed oil; Measures of effectiveness; Penetration resistance; Permeability; Protective coatings; Sealing compounds; Testing; Waterproofing materials
• Uncontrolled Terms: Effectiveness
• Subject Areas: Finance; Geotechnology; Highways; Materials; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00485734
• Record Type: Publication
• Report/Paper Numbers: FHWA-PA-89-002+83-41, Res Proj #83-41
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jul 31 1989 12:00AM