EPOXY SURFACE TREATMENTS FOR PORTLAND-CEMENT CONCRETE PAVEMENTS

WIDESPREAD ACCEPTANCE OF EPOXY SURFACE TREATMENTS FOR PAVEMENTS HAS BEEN LIMITED IN PART BY PROBLEMS ASSOCIATED WITH PINHOLING, POOR SURFACE APPEARANCE, AND SHEET DETACHMENT. RECENT LABORATORY AND FIELD INVESTIGATIONS PROMISE TO IMPROVE THIS SITUATION MARKEDLY BY USE OF 20 TO 40-MESH ROUNDED AGGREGATES TO STOP PINHOLING, DEVELOPMENT OF MECHANICAL SAND-SPREADING EQUIPMENT TO IMPROVE APPEARANCE, AND IMPROVED TECHNIQUES FOR DECK PREPARATION TO OBTAIN BETTER ADHESION. IN ADDITION, NEW APLLICATION TECHNIQUES PERMIT ONE-STED PLACEMENT OF PREMIXED EPOXY MORTARS IN 3/8 IN. LIFTS, WHICH OFFER NUMEROUS ADVANTAGES IN INCREASED WEAR, IMPROVED WETTING OF BOTH DECK AND AGGREGATE, AND GREATER STRUCTURAL INTEGRITY OF THE OVERLAY TREATMENT. THESE NEW TECHNIQUES APPEAR TO BE ADAPTABLE TO EVEN VERY LARGE CONTRACTS. DESPITE EXISTING PROBLEMS, THE PROTECTION AFFORDED BY EPOXY TREATMENTS, TOGETHER WITH THE COMBINATION OF THIN COURSES AND LONGLIFE, CONTINUE TO INDICATE A PERMANENT PLACE FOR THESE TREATMENTS IN THE HIGHWAY INDUSTRY. /ACIJP/

• Supplemental Notes:
  • Sp 21, pp 9-18, 12 REF
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Mcconnell, W R
• Publication Date: 1968

Subject/Index Terms

• TRT Terms: Aerodynamic lift; Aggregates by shape and surface texture; Concrete pavements; Epoxy resins; Location; Mortar; Overlays (Pavements); Portland cement concrete; Surface treating; Wetting
• Uncontrolled Terms: Aggregate shape; Lifts
• Old TRIS Terms: Pinholes; Placement
• Subject Areas: Geotechnology; Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 00216766
• Record Type: Publication
• Source Agency: Am Concrete Inst Journal & Proceedings
• Files: TRIS
• Created Date: Sep 15 1994 12:00AM