PARTIAL POLYMER IMPREGNATION OF HIGHWAY BRIDGE DECKS

Polymer-impregnated concrete is being considered as a means of increasing the durability of bridge decks. For application to existing bridges, the process includes drying the bridge deck to remove the free moisture in the pores, soaking a low viscosity monomer solution int the concrete, and applying heat to polymerize the monomer. Drying, soaking, and curing requirements are discussed. A limited area of a bridge deck has been successfully polymerized to a depth of approximately 1 in. (2.5 cm). Evaluation studies were conducted to determine the freeze-thaw resistance, skid and wear resistance, and protection against corrosion of the reinforcement in relation to polymer-impregnated concrete. Freeze-thaw resistance was significantly increased, and skid resistance improved significantly for the partially impregnated slabs when the tests were performed when the surfaces were dry. Skid resistance was slightly higher when the surfaces were covered with abrasive grit and kept wet. Wear measurements generally indicated little difference between treated and untreated specimens. Corrosion resistance for slabs with a low-quality polymer impregnation is about 25 times greater than that for unimpregnated slabs.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 9-19
  • Monograph Title: Polymer concrete
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00127398
  • Record Type: Publication
  • ISBN: 0309023955
  • Files: TRIS, TRB
  • Created Date: Dec 3 1975 12:00AM