POLYMER-IMPREGNATED CONCRETE: FIELD STUDY

The principles developed in the laboratory for polymer impregnation of concrete to depths below the top layer of steel reinforcing rods were applied to the impregnation of large concrete slabs and a bridge deck. The concrete slabs and bridge deck were dried thoroughly using a propane torch assembly (temperature at surface 700 deg F or 372 deg C, at a 4-in. (100-mm) depth 250 deg F or 121 deg C), impregnated with a 16-in. (410-mm) ethylene film, and polymerized for a 16-in. (410-mm) pressure impregnator at 15 psi to 80 psi (104 kN/sq to 552 kN/sq m), wrapped or covered with a polyethylene film, and polymerized for 5-8 hr using steam from a pressure cooker. The monomer was a 90:10 methyl methacrylate: trimethylolpropane trimethacrylate mixture containing 0.5 percent azobisisobutyronitrile initiator. The slabs were impregnated to their full 6-in. (150-mm) thickness, the bridge deck to a depth of at least 5 in. (125 mm). The polymer-impregnated slabs show increased compressive and split-tensile strengths, decreased water absorption, and improved resistance to corrosion, freeze-thaw cycling, abrasion, and acid-etching. /ASCE/

  • Availability:
  • Supplemental Notes:
    • Presented at the July 15-19, 1974 ASCE/EIC/RTAC Joint Transportation Engineering Meeting, Montreal, Quebec, Canada.
  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Mehta, H C
    • Manson, J A
    • Chen, Wai-Fah
    • Vanderhoff, J W
  • Publication Date: 1975-2

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Subject/Index Terms

Filing Info

  • Accession Number: 00126382
  • Record Type: Publication
  • Report/Paper Numbers: ASCE #11103 Proceeding
  • Files: TRIS
  • Created Date: Dec 3 1975 12:00AM