CONCRETE PILINGS RESTORED BY EPOXY CRACK INJECTION

FOUR LARGE HOLLOW CONCRETE PILINGS, CRACKED BY AN ACCIDENT IN HANDLING DURING MANUFACTURE, WERE COMPLETELY AND PERMANENTLY REPAIRED BY EPOXY CRACK INJECTION. THE CRACKS WERE COATED WITH A SEALER, LEAVING OPEN PORTS EVERY 6-8 INCHES. A SPECIAL TWO COMPONENT ADHESIVE THAT CURES IN FOUR HOURS, AND, WHEN CURED, EXCEEDS THE STRENGTH OF CONCRETE, WAS USED FOR INJECTION. BECAUSE OF SHORT POT LIFE, THE ADHESIVE IS MIXED IN AN IN-LINE SYSTEM SO THAT MIXING OCCURS ONLY WHEN NEEDED. THE INJECTION GUN NOZZLE IS PLACED AGAINST AN OPEN PORT OF THE CRACK AND ACTIVATED. ADHESIVE PENETRATION IS TOTAL AND USUALLY NOT LIMITED BY CRACK DEPTH. THE TEMPORARY SEALER IS REMOVED LEAVING THE SURFACE UNMARRED.

  • Supplemental Notes:
    • Vol 110, No 4, P 19, 1 PHO
  • Publication Date: 1967-4

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Filing Info

  • Accession Number: 00214715
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 1 1994 12:00AM