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Title: STABILITY OF STRAIGHT AND POLYMER-MODIFIED ASPHALTS
Accession Number: 00625146
Record Type: Component
Availability: Find a library where document is available Abstract: Both short- and long-term aging can have a significant influence on the performance of hot mix asphalt pavements. This is true for polymer-modified asphalts as well as for conventional asphalt cements. The latter can undergo significant age hardening during storage, mixing, and placement in the field. This long-term aging can be dramatic and lead to premature pavement failure. The effects of aging can be exacerbated in the case of permeable pavements or in regions with extreme climatic conditions. Polymer modification is a way of overcoming these potential deficiencies by providing binders with well-balanced property sets. However, unsaturated polymers are susceptible to thermal and oxidative degradation. Thus, it is imperative to avoid prolonged storage and excessive temperatures during processing. Improved thermal and oxidative stability can be achieved by modifying asphalts with saturated polymers.
Supplemental Notes: This paper appears in Transportation Research Record No. 1342, Asphalt and Asphalt Additives. 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
Monograph Title: Monograph Accession #: 01404979
Language: English
Authors: Collins, Jim HBouldin, Mark GPagination: p. 92-100
Publication Date: 1992
Serial: ISBN: 030905205X
Features: Figures
(5)
; References
(28)
; Tables
(6)
TRT Terms: Old TRIS Terms: Subject Areas: Highways; Materials; Terminals and Facilities; I31: Bituminous Binders and Materials
Files: TRIS, TRB, ATRI
Created Date: Oct 20 1993 12:00AM
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