BRIDGE EXPANSION JOINT SEALANTS
FOR THE PAST 11 YEARS THE CALIFORNIA DIVISION OF HIGHWAYS HAS BEEN STUDYING JOINT SEALANTS, CATEGORIZED AND LISTED IN THE APPENDIX TO THIS PAPER. RECENT RESEARCH HAS CONCENTRATED ON TWO-COMPONENT POLYURETHANES, POLYURETHANE FOAMS, AND PREFORMED ELASTOMERIC SEALS; THE GREATEST EMPHASIS IS NOW BEING PLACED ON THE LAST OF THESE. CAST-IN-PLACE POLYURETHANE SEALS, IF PROPERLY INSTALLED, WILL EFFECTIVELY SEAL JOINTS HAVING UP TO 0.5 INCH OF MOVEMENT. POOR CONSTRUCTION PRACTICES ACCOUNT FOR MANY SEAL FAILURES. JOINTS FOR PREFORMED ELASTOMERIC SEALS SHOULD BE ENGINEERED TO FIT THE GIVEN CONDITIONS. A MOVEMENT-RATING SYSTEM, WHICH DETERMINES MOVEMENT CAPABILITY, HAS BEEN DEVELOPED FOR PREFORMED ELASTOMERIC JOINT SEALS.
- Record URL:
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Supplemental Notes:
- Paper sponsored by Committee on Sealants and Fillers for Joint and Cracks in Pavements and presented at the 49th Annual Meeting. 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.
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Authors:
- Gunderson, Bruce J
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Conference:
- 49th Annual Meeting of the Highway Research Board
- Location: Washington District of Columbia, United States
- Date: 1970-1-12 to 1970-1-16
- Publication Date: 1970
Media Info
- Media Type: Digital/other
- Features: Appendices; Figures; Tables;
- Pagination: pp 9-19
- Monograph Title: Joint sealants, paint and pipe
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Serial:
- Highway Research Record
- Issue Number: 320
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Bridges; Elastomers; Expansion joints; Joint sealers; Neoprene; Polyurethane resins; Preforming; Sealing compounds
- Old TRIS Terms: Preformed sealers; Preforms
- Subject Areas: Bridges and other structures; Geotechnology; Highways; Maintenance and Preservation; Materials;
Filing Info
- Accession Number: 00217037
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Dec 28 1970 12:00AM