TWO-COURSE CONSTRUCTION OF AN INTERNALLY SEALED CONCRETE BRIDGE DECK

A unique form of two-course construction--placement of a 51-mm (2-in) wax-bead concrete overlay on a fresh, conventional-concrete lower course after a 1-h wait period--was used in construction of a bridge deck near Seattle, Washington. Construction and evaluation of test slabs before placement of the deck showed that the direct tensile bond developed between the two courses was as great as the direct tensile strength of the wax-bead concrete. Other test-slab construction and evaluation work showed that the more conventional approach of placing a 51-mm overlay on a 1-d-old hardened lower course (after a water-and-sand blast and grout placement) also resulted in adequate bond. Cores evaluated after construction and heating of the deck confirmed the adequacy of the bond and the complete sealing of the top 13 to 25 mm (0.5 to 1.0 in) the concrete overlay. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1977/652/652-002.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=TWO-COURSE+CONSTRUCTION+OF+AN+INTERNALLY+SEALED+CONCRETE+BRIDGE+DECK&author=W.+Bryant&author=K.+Clear&publication_year=1977
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Construction of Bridges and Structures. 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:
  • Bryant, Walter
  • Clear, Kenneth
• Conference:
  • 56th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1977-1-24 to 1977-1-28
• Publication Date: 1977

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 10-15
• Monograph Title: Construction and quality control of pavements and structures
• Serial:
  • Transportation Research Record
  • Issue Number: 652
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bridge decks; Concrete; Overlays (Pavements); Slabs; Tension; Waxes
• Old TRIS Terms: Beading; Tensile load
• Subject Areas: Construction; Highways;

Filing Info

• Accession Number: 00184205
• Record Type: Publication
• ISBN: 03026814
• Files: TRIS, TRB
• Created Date: Dec 29 1978 12:00AM