SPOT TREATMENT OF HOLLOW AREAS BY REBONDING WITH INJECTED EPOXY RESIN

CERTAIN TYPES OF EPOXY CAN BE USED TO REBOND NEAR- HORIZONTAL FRACTURES IN CONCRETE USING SIMPLIFIED INJECTION EQUIPMENT. THE FRACTURES ARE OFTEN CLOSELY ASSOCIATED WITH THE REINFORCING STEEL OR WITH LARGE AGGREGATE PARTICLES. THIS METHOD OF REPAIR IS RELATIVELY INEXPENSIVE, NOT TIME CONSUMING, AND CAN BE DONE WITH LITTLE EQUIPMENT AS COMPARED TO OTHER REPAIR TECHNIQUES. FURTHERMORE THE ORIGINAL DECK SURFACE IS RETAINED. SURVEYS OF THE REBONDED AREAS, TWO YEARS AFTER REBONDING, SHOWED THAT ONLY 15 PER CENT OF THE AREAS REBONDED WERE AGAIN HOLLOW. THIS IS IN CONTRAST TO A 130 PER CENT AVERAGE YEARLY INCREASE IN THE HOLLOW AREAS OVER A FIVE YEAR PERIOD IN THE NON-BONDED AREAS. THIS TECHNIQUE HOLDS PROMISE FOR HOLLOW PLANE REPAIR IN BRIDGE DECKS. BETTER RESULTS COULD POSSIBLY BE OBTAINED WITH MORE REFINED INJECTION EQUIPMENT, OTHER EPOXY TYPES, OR DIFFERENT LIQUID ADHESIVES SUCH AS CERTAIN ELASTOMERS MORE SUITED TO THIS PURPOSE. /BPR/

• Supplemental Notes:
  • Hpr, 64-3
• Corporate Authors:

  Kansas State Highway Commission

  State Office Building
  Topeka, KS  United States  66612

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Pattengill, M G
  • Crumpton, C F
  • McCaskill, G A
• Publication Date: 1969-5

Subject/Index Terms

• TRT Terms: Bonding; Bridge decks; Concrete; Epoxy resins; Fracture mechanics; Repairing
• Uncontrolled Terms: Fracture; Injection; Repairs
• Subject Areas: Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00218039
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS
• Created Date: Jul 22 1994 12:00AM