CALIFORNIA SEALS SALT-DAMAGED BRIDGE DECKS

FOR SEVERAL YEARS, STATES IN COLD-WEATHER AREAS HAVE BEEN PLAGUED WITH THE PROBLEM OF HOW TO CHECK ICING ON BRIDGE DECKS WITHOUT CAUSING STRUCTURAL DETERIORATION. THE OBVIOUS SOLUTION TO THE PROBLEM WOULD BE TO FIND A NON-CORROSIVE DE- ICING MATERIAL. THE FIRST DECK SEALANT TRIED WAS AN EPOXY. HOWEVER, IT DOES NOT BOND WELL TO ITSELF AFTER THE FIRST SURFACE HAS CURED. A COAL TAR EMULSIFIED WITH WATER AND CLAY HAD A CORRELATION EFFECTIVENESS RELATED TO THE SEASON OF THE YEAR. PLACED IN SUMMER, IT IS ABOUT 70 PERCENT EFFECTIVE AS A WATER BARRIER, BUT PLACED IN FALL IT IS ONLY ABOUT 25 PERCENT EFFECTIVE. PROTECTO WRAP, A MEMBRANE MADE BY COATING A GLASS FABRIC WITH COAL-TAR PLASTICIZED WITH VINYL, PROVED EFFECTIVE AS DID A THERMOPLAST SHEET SYSTEM. URETHANES ARE SCHEDULED FOR FIELD TESTING IN 1972. WITH ALL THE MEMBRANES TRIED SO FAR, THERE IS A COMMON PROBLEM OF OBTAINING A CLEAN DECK SURFACE. /AUTHOR/

  • Availability:
  • Supplemental Notes:
    • Vol 41, No 10, PP 42-44, 2 FIG, 3 PHOT
  • Authors:
    • Boulware, R L
    • Elliott, A L
  • Publication Date: 1971-10

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Filing Info

  • Accession Number: 00209627
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 9 1972 12:00AM