SURVEY OF STEEL-FORMED BRIDGE DECKS IN ILLINOIS

SURVEY RESULTS ARE REPORTED ON 21 METAL-FORMED AND WOOD- FORMED ADJACENT BRIDGES ON THE INTERSTATE AND SECONDARY ROAD SYSTEM IN ILLINOIS. CONCRETE QUALITY STUDIES USED THE SWISS HAMMER, AND A CALIBRATED IMPACT-REBOUND NONDESTRUCTIVE INSTRUMENT. A STATISTICAL ANALYSIS OF THESE STUDIES RESULTED IN THE FOLLOWING OBSERVATIONS' /1/ THE CONCRETE QUALITY WAS INDEPENDENT OF THE METHOD OF FORMING, /2/ THE VARIATIONS IN CONCRETE QUALITY WITHIN A GIVEN BRIDGE WERE GENERALLY LARGER THAN THE VARIATIONS BETWEEN COMPARISON BRIDGES, /3/ COMPARISON METAL-FORMED AND ADJACENT WOOD-FORMED BRIDGES IN EACH OF THREE GEOGRAPHICAL AREAS SHOWED NO SIGNIFICANT DIFFERENCE IN AVERAGE SWISS HAMMER VALUES, AND /4/ FOR THREE BRIDGES NO STATISTICAL DIFFERENCE IN QUALITY OF CONCRETE AT THE 5 PERCENT SIGNIFICANCE LEVEL WAS OBTAINED. IT WAS CONCLUDED THAT THE CONCRETE QUALITY AND DECK CONDITION WERE NOT AFFECTED BY THE USE OF PERMANENT METAL FORMS. THE FORMS WERE BONDED TO THE CONCRETE DECKS AND PRESENTED PLEASING UNDERSIDE APPEARANCES.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1966/110/110-006.pdf
• Supplemental Notes:
  • 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:
  • Benjamin, Irwin A
  • Walsh Jr, Martin P
• Publication Date: 1966

Media Info

• Media Type: Digital/other
• Pagination: pp 43-44
• Monograph Title: Bridge materials, construction, inspection and cathodic protection
• Serial:
  • Highway Research Record
  • Issue Number: 110
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Bridge decks; Concrete; Concrete forms; Crash tests; Hammers; Metals; Nondestructive tests; Quality control; Secondary roads; Statistical analysis; Surveys; Wood
• Identifier Terms: Interstate Highway System
• Uncontrolled Terms: Quality; Swiss hammer
• Geographic Terms: Illinois
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways; Research;

Filing Info

• Accession Number: 00207718
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Nov 18 1994 12:00AM