NEW YORK STATE EXPERIENCE WITH CONCRETE PAVEMENT JOINT SEALERS
THE PRIMARY METHOD OF EVALUATING SEALER PERFORMANCE AT TEST SITES IN NEW YORK STATE HAS BEEN TO MAKE FREQUENT PERIODIC OBSERVATIONS WITH A SPECIAL EFFORT TO OBSERVE THE SEALERS DURING SUBZERO TEMPERATURES. IN A TEST AREA ESTABLISHED IN 1963, TIME-LAPSE MOVIE PHOTOGRAPHY IS BEING EMPLOYED TO OBTAIN VISUAL RECORDS OF SEALER PERFORMANCE. OBSERVATIONS OF JOINT SEALING MATERIALS INSTALLED DURING 1959 INDICATE THAT EXTRUDED NEOPRENE HAS GIVEN EXCELLENT SERVICE. HOWEVER, THE APPROPRIATE WIDTH TUBING MUST BE INSTALLED WITHOUT STRETCHING IN JOINTS OF A CONSISTENT AND PREDICTABLE WIDTH. THIOKOL WITH EXTENDERS PERFORMED WELL FOR APPROXIMATELY 18 MONTHS WHEN CRACKS BEGAN TO APPEAR OVER AIR BUBBLES FORMED DURING INSTALLATION AND SOME ADHESION FAILURES DEVELOPED. POLYSULFIDE WITH TAR EXTENDERS GAVE EXCELLENT SERVICE FOR 1 YEAR, AFTER WHICH SURFACE CRACKS APPEARED AND PROGRESSED THROUGH THE MATERIAL. THE ABILITY OF HOT-POURED RUBBER ASPHALT TO SEAL JOINTS VARIED, DEPENDING ON THE SEASON INSTALLED. MATERIALS PLACED DURING HOT SUMMER WEATHER FAILED IN LESS THAN 4 MONTHS, MATERIAL POURED IN THE FALL PERFORMED WELL FOR ABOUT 1 YEAR, WHEN ADHESION FAILURES DEVELOPED. RUBBER ASPHALT, COLD-POURED WITH SOLVENT, GAVE VERY POOR PERFORMANCE AND FAILED ENTIRELY WITHIN 4 MONTHS. OBSERVATIONS ON POLYURETHANE WITH TAR EXTENDERS AND OTHER RECENTLY DEVELOPED SEALERS ARE CONTINUING. /AUTHOR/
- Record URL:
-
Supplemental Notes:
- Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
-
Authors:
- Graham, Malcolm D
- Burnett, William C
- Hiss Jr, J G Frederick
- Lambert, John R
- Publication Date: 1965
Media Info
- Media Type: Digital/other
- Features: Figures;
- Pagination: pp 42-48
- Monograph Title: Joints and sealants - a symposium and other papers
-
Serial:
- Highway Research Record
- Issue Number: 80
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Concrete pavements; Cracking; Elastomer modified asphalt; Extrusion; Field studies; Joint sealers; Joint sealing; Neoprene; Performance; Photography; Polysulfides; Polyurethane resins; Sealing compounds; Tar; Temperature; Time series analysis
- Geographic Terms: New York (State)
- Old TRIS Terms: Air gaps; Field observation; Thiokol
- Subject Areas: Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00215804
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Dec 12 1994 12:00AM