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Title: THE IMPORTANCE OF SEALANT MODULUS TO THE LONG-TERM PERFORMANCE OF CONCRETE HIGHWAY JOINT SEALANTS
Accession Number: 00458070
Record Type: Component
Availability: Find a library where document is available Abstract: Preliminary laboratory and field results are summarized that demonstrate the value of modulus testing in evaluating the initial and long-term elastomeric properties of several generic sealants. The effects of accelerated weathering on the elastomeric properties of these sealants are examined and an illustration is given of how changes in modulus can affect the sealant's ability to withstand vertical shear caused by pavement deflections under traffic. Laboratory results indicate that all samples tested have the ability to withstand some vertical shear. The number of shear cycles that a sample is able to withstand after accelerated aging has been related to changes in the sealant's modulus property. Of the samples studied, low-modulus silicones maintained their modulus property and withstood the largest number of shear cycles. Test procedures and methods used in this study are described.
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. Publication of this paper sponsored by Committee on Sealants and Fillers for Joints and Cracks.
Monograph Accession #: 01419437
Authors: Spells, SherwoodKlosowski, Jerry MEditors: Kassabian, Naomi CPagination: pp 82-86
Publication Date: 1985
Serial: ISBN: 0309039576
Media Type: Print
Features: Figures
(6)
; Photos
(3)
; References
(4)
TRT Terms: Old TRIS Terms: Subject Areas: Geotechnology; Highways; Materials; I35: Miscellaneous Materials
Files: TRIS, TRB
Created Date: Sep 30 1986 12:00AM
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