PHYSICAL FACILITY MAINTENANCE - STRUCTURES

SIGNIFICANT CHANGES INTRODUCED IN THE PAST DECADE ARE REVIEWED. THE MAINTENANCE OF ROLLER AND ROCKER BEARINGS AND EXPERIENCE IN THE USE OF EPOXY GLUED ELASTOMERIC BEARING PADS ARE RECOUNTED. THE CHRONOLOGY OF REPAIRS MADE OVER THE YEARS TO 74 JOINTS ON 60' CENTERS IS OUTLINED. JOINT REHABILITATION INVOLVED REMOVAL OF CONCRETE ON EITHER SIDE AND INSTALLATION OF STEEL FACED JOINTS WHICH PROVIDED A BOUNDING SURFACE FOR THE SEALANT (PRE-FORMED NEOPRENE JOINT MATERIAL). THE USE OF IMPREGNATED POLYURETHANE FOAM SEALANT ON SKEWED JOINTS AND POURABLE POLYURETHANE SEALANT FOR SMALLER JOINTS IS DESCRIBED. THE DETERIORATION OF SLIDING STEEL PLATE EXPANSION JOINTS, AND THE USE OF SWEDGE BOLTS (WHICH PERFORMED BETTER THAN ANCHOR BOLTS) IN SECURING THESE JOINTS IS DESCRIBED. THE REPAIR OF CONCRETE DECKS IS REVIEWED AND THE USE OF POLYESTER RESIN CEMENT AS A RESURFACING MATERIAL IS DISCUSSED. THE PROBLEM OF PREVENTION OF GROUND OR TIDAL WATER LEAKING THROUGH CRACKS IN UNDERPASSES IS CONSIDERED. THE SEALING OF LEAKS WITH CHEMICAL GROUT WHICH COMBINES WITH WATER TO FORM A GEL IS DESCRIBED.

• Authors:
  • Zitelli, J P
• Publication Date: 1971-11

Media Info

• Pagination: p. 33-9
• Serial:
  • Intl Bridge Tunnel & Turnpike Assoc

Subject/Index Terms

• TRT Terms: Bridge decks; Bridges; Cement; Chemicals; Concrete; Elastomers; Epoxides; Expansion joints; Grout; Joints; Maintenance practices; Neoprene; Pavement maintenance; Polyester resins; Polyurethane resins; Reviews; Roller bearings; Sealing compounds
• Old TRIS Terms: Bearing pads; Epoxy; Joint
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00219060
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 11 1974 12:00AM