EPOXY INJECTIONS REPAIR HISTORIC PRESTRESSED CONCRETE BRIDGE

IN 1968, INSPECTION REVEALED CRACKS IN THE BOTTOM FLANGES OF PHILADELPHIA'S WALNUT LANE MEMORIAL BRIDGE. THE BRIDGE, THE FIRST POST-TENSIONED PRESTRESSED CONCRETE BRIDGE IN THE UNITED STATES, HAD UNDERGONE REPAIRS FOR CRACKS IN 1957, PRIMARILY FOR ESTHETIC REASONS. THE 1968 INSPECTION INDICATED SOME NEW CRACKS HAD DEVELOPED AND SOME OF THE 1957 CRACKS HAD OPENED WIDER. THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION REPAIRED THE BRIDGE BY PUMPING EPOXY INTO THE CRACKS, USING AN UNUSUAL PROCEDURE THAT COMBINES THE EPOXY COMPONENTS IN A SPECIAL MIXING HEAD PRIOR TO ITS INJECTION INTO A CRACK. /ASCE/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Supplemental Notes:
  • Vol 41, No 3, PP 39-41, 1 FIG, 3 PHOT
• Authors:
  • Garfield, H G
• Publication Date: 1971-3

Media Info

• Serial:
  • Civil Engineering
  • Publisher: American Society of Civil Engineers
  • ISSN: 0885-7024
  • Serial URL: http://www.pubs.asce.org/ceonline/newce/html

Subject/Index Terms

• TRT Terms: Beams; Bridges; Concrete bridges; Epoxides; Grouting; Maintenance; Prestressed concrete; Prestressing
• Uncontrolled Terms: Injection
• Old TRIS Terms: Epoxy
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00218943
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 10 1972 12:00AM