A COOPERATIVE BRIDGE DECK STUDY

A COOPERATIVE BRIDGE DECK STUDY WAS UNDERTAKEN TO: (1) DETERMINE THE EXTENT OF DECK DETERIORATION IN SELECTED AREAS, (2) DETERMINE THE CAUSES OF THE VARIOUS TYPES OF DETERIORATION, (3) DEVELOP RELIABLE METHODS, WHERE NEEDED, FOR PREVENTING DETERIORATION ON FUTURE CONSTRUCTION, AND (4) DEVELOP METHODS OF RETARDING DETERIORATION ON EXISTING BRIDGES NOW SHOWING DETERIORATION. A RANDOM SURVEY OF STRUCTURES IN TEN STATES WAS CONDUCTED FOR THE FIRST OBJECTIVE. FOR EACH STRUCTURE, AN INSPECTION SHEET WAS FILLED OUT. A GUIDE WAS GIVEN TO THE INSPECTORS CONTAINING BOTH A PICTURE AND A DEFINITION FOR EACH CATEGORY OF EACH TYPE OF DEFECT. DATA OBTAINED FROM THESE RANDOM FIELD SURVEYS ARE BEING TRANSFERRED TO PUNCH CARDS FOR MACHINE PROCESSING AND EVALUATION. THE SECOND OBJECTIVE IS BEING ACHIEVED THROUGH THE DETAILED STUDY OF SELECTED STRUCTURES IN CERTAIN OF THE 10 STATES. CORES WERE TAKEN FOR EACH TYPE OF DEFECT NOTED IN THE DECK. IT IS ANTICIPATED THAT A STUDY OF THE CORES WILL PROVIDE CLUES TO THE REASONS FOR, OR THE CAUSES OF, THE OCCURRENCE OF THE TYPE OF DEFECT. A COMPLETE PETROGRAPHIC STUDY IS BEING MADE OF EACH CORE TO DETERMINE PASTE QUALITY AND THE SUITABILITY OF THE AGGREGATES. IN MANY CASES THE CONCENTRATION OF DEICER AS A FUNCTION OF DEPTH IS BEING DETERMINED. A STUDY OF THE ADEQUACY OF CURRENT METHODS IS UNDERWAY WITH RESPECT TO RETARDING EXISTING DETERIORATION.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/323/323-005.pdf
• Supplemental Notes:
  • No 323, pp 23-25, 1 TAB Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Klieger, Paul
  • Fountain, Richard S
• Conference:
  • 41st Annual Meeting of the Highway Research Board
  • Location: Washington DC, United States
  • Date: 1962-1-8 to 1962-1-12
• Publication Date: 1962

Media Info

• Media Type: Digital/other
• Monograph Title: Effects of de-icing chemicals on structures
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 323
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Bridge decks; Concrete; Core samples; Data collection; Deicers (Equipment); Deterioration; Geological surveying; Inspection; Pastes; Petrography; Punched cards; Reinforced concrete; Surveys
• Uncontrolled Terms: Aggregate analysis; Deicers; Deteriorated concrete
• Old TRIS Terms: Cores; Petrographic investigations
• Subject Areas: Geotechnology; Highways; Maintenance and Preservation; Vehicles and Equipment;

Filing Info

• Accession Number: 00218291
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jul 29 1994 12:00AM