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Internally Sealed Concrete at Cow Creek, Oklahoma

File Language:
English


Details

  • Creators:
  • Corporate Creators:
    Oklahoma. Department of Transportation. Planning & Research Division
  • Corporate Contributors:
    United States. Department of Transportation. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA-OK-81/1
  • Resource Type:
    Tech Report
  • Geographical Coverage:
  • Corporate Publisher:
    Oklahoma. Department of Transportation
  • Abstract:
    This report discusses Oklahoma's second experimental internally sealed concrete bridge deck. It differed from the first on in that it contained wax beads only in the top two inches as opposed to full depth and it covered the entire deck instead of just one span. The objective of this study was to gain experience in placing and heating a wax impregnated concrete bridge deck ion a full-scale basis. Work was performed on an existing Interstate bridge that needed widening and redecking. The bridge's maintenance history is included in the report. The project design and construction phases are described in detail. The deck was placed with two pours instead of a monolithic pour as originally planned. A petrographic classification was made of the aggregates. The mix design detailing the conversion from conventional bridge deck concrete to wax bead concrete is explained. A trial mix was made prior to pouring the wax bead overlay to insure good bead distribution. The heat blankets and heat treating method used to internally seal the deck are described. Tests to determine the effectiveness of the wax seal the deck are described. Tests to determine the effectiveness of the wax seal are discussed. These included: (1) A "before" and "after" heating crack survey, (2) 24 hour absorption, (3) dye penetration, (4) skid resistance, (5) half-cell potential, (6) compressive and flexural strength, and (7) a chloride analysis. All of the test showed good results. This method deserves serious consideration in the bridge design process.
  • Format:
    PDF
  • Funding:
    DOT-FH-15-316
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:4d7badb073cde68386935bc176316f4ee00f00147325583aee2894e2956af0f04beafb82b184a6e6a26c29ca0fb5901bd1cd6bbb89ba303ebdf3b8b870e3df39
  • Download URL:
  • File Type:
    Filetype[PDF - 3.46 MB ]
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