CHLORIDE CONTENT PROGRAM FOR THE EVALUATION OF REINFORCED CONCRETE BRIDGE DECKS. FINAL REPORT

Reinforcing steel in concrete is protected by a passive layer that is destroyed when exposed to chlorides. To maintain a bare deck, deicing salts that contain chlorides are used to remove the snow and ice. The chlorides penetrate the concrete, destroy the passive layer surrounding the reinforcing, and help initiate corrosion of the rebar. A computer program has been developed to calculate the chloride diffusion in concrete and to assist the engineer in analyzing existing bridge decks and future concrete repairs. The computer program calculates the diffusion coefficient, the applied surface chloride loads, and future chloride profiles based on chloride profiles from core tests. The program can evaluate different deck designs including changes in concrete cover, chloride loads, concrete type, sealer application and life, and other variables. The program is user-friendly and operates on a 386PC with a VGA screen.

• Corporate Authors:

  University of Colorado, Boulder

  Department of Civil, Environmental and Architectural Engineering
  Boulder, CO  United States  80309-0428

  Colorado Department of Transportation

  4201 E Arkansas Avenue
  Denver, CO  United States  80222

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Riple, A B
  • Suprenant, B A
• Publication Date: 1992-6

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 37 p.

Subject/Index Terms

• TRT Terms: Analysis; Bridge decks; Bridge management systems; Chloride content; Chlorides; Computer programs; Concrete; Corrosion protection; Design; Diffusion (Optics); Reinforced concrete; Reinforcing steel; Sealing compounds
• Uncontrolled Terms: Cover depth
• Old TRIS Terms: Concrete composition
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00625067
• Record Type: Publication
• Report/Paper Numbers: CDOT-DTD-R-92-7
• Files: TRIS, USDOT, STATEDOT
• Created Date: Oct 9 1993 12:00AM