EVALUATION OF EPOXY COMPOUNDS AS A MATERIAL FOR PATCHING AND PROTECTING CONCRETE; FINAL REPORT
THE RESULTS OF A STUDY OF THE USE OF EPOXY COMPOUNDS IN SHALLOW SURFACE REPAIR AND SEALING OF CONCRETE BRIDGE DECKS ARE REPORTED. THE RESEARCH, WHICH CONCENTRATED ON THE USE OF EPOXY RESIN SYSTEM AS BONDED OVERLAYS, INCLUDED EVALUATIONS OF TEST STRIPS OF SEVEN MATERIALS ON TWO STRUCTURE IN NORTHERN VIRGINIA, SUPPLEMENTED BY OBSERVATIONS OF APPROXIMATELY FIFTY FULL-SCALE APPLICATIONS. THE WEARING OF A THIN BONDED EPOXY OVERLAY EXPOSED TO TRAFFIC, AS MANIFESTED IN THE LOSS OF BOTH SKID RESISTANCE AND PROTECTION AFFORDED THE UNDERLYING CONCRETE, IS THE DEFINITIVE FACTOR IN THE SERVICE LIFE OF THE APPLICATION. THE RESISTANCE TO WEAR OF THE EXPOSED OVERLAYS WAS GENERALLY DISAPPOINTING AND THE USE OF AN ASPHALTIC WEARING COURSE TO PROTECT THE EPOXY SEAL COAT IS CONSIDERED ESSENTIAL FOR CONTINUED EFFECTIVENESS OF AN OVERLAY APPLICATION. THE SKID RESISTANCE AFFORDED BY AN EXPOSED EPOXY OVERLAY MUST BE CONSIDERED A LIMITING FACTOR IN ITS SERVICE LIFE. REGARDLESS OF THE TYPE OF DESLICKING AGGREGATE EMPLOYED, UNPROTECTED EPOXY OVERLAYS SUFFER A CONTINUING DECLINE IN SKID RESISTANCE UNDER EXPOSURE TO TRAFFIC. SUCH APPLICATIONS, PARTICULARLY THOSE CONTAINING COAL TAR MODIFIED EPOXY RESIN SYSTEMS WHICH TEND TO LOSE AGGREGATE AND POLISH, SHOULD BE EVALUATED PERIODICALLY FOR LOSS OF SKID RESISTANCE. RECOMMENDATIONS PERTAINING TO THE APPLICATION OF EPOXY SEALS TO BRIDGE DECKS ARE INCLINED. /AUTHOR/
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- Record URL:
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Supplemental Notes:
- Vhrc 70-r33, 37 PP
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Corporate Authors:
Virginia Highway Research Council
Charlottesville, VA United States -
Authors:
- McKeel, W T
- Publication Date: 1971-3
Subject/Index Terms
- TRT Terms: Bonding; Bridge decks; Concrete; Durability; Epoxides; Epoxy resins; Losses; Overlays (Pavements); Repairing; Seal coats; Sealing (Technology); Skid resistance; Surfaces; Traffic
- Uncontrolled Terms: Repairs
- Old TRIS Terms: Epoxy; Sealing
- Subject Areas: Geotechnology; Highways; Materials; Operations and Traffic Management;
Filing Info
- Accession Number: 00217107
- Record Type: Publication
- Files: NTL, TRIS
- Created Date: Jun 22 1971 12:00AM