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Title:

APPLICATION OF ASPHALT RUBBER ON NEW HIGHWAY PAVEMENT CONSTRUCTION

Accession Number:

00372929

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/isbn/0309035007

Abstract:

Asphalt rubber has been used for many years as a stress-absorbing membrane (SAM) or stress-absorbing membrane interlayer (SAMI) for both rigid and flexible pavement overlay systems in Arizona with satisfactory performance. In 1977, a new experimental application of asphalt rubber was used to build a low-volume highway pavement between Dewey and I-17 on AZ-169. Several experimental pavement sections were placed. After four years of service, only two sections are still in excellent condition with no cracks or ruts observed to date. One section consisted of a cement-treated base and the other a lime-fly ash-treated base. Each section received a SAMI and a 1-in. wearing course. Other test sections failed, and constant patching is required to maintain a minimal level of service. Generally, cement-treated bases will always have shrinkage cracks that easily reflect through any asphalt concrete surface layer if without special treatment to retard crack propagation. A finite-element procedure was used as an aid in explaining why a SAMI can be used effectively to eliminate reflective cracks. It was found that SAMIs can significantly reduce crack tip stresses due to thermal and traffic loads and provide longer service life of the asphalt concrete surface layer. (Author)

Supplemental Notes:

Publication of this paper sponsored by Committee on Pavement Rehabilitation Design. 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 Accession #:

01416492

Authors:

Morris, Gene R
Chen, Nan Jim
Di Vito, Joseph A

Editors:

Herman, Scott C

Pagination:

pp 43-47

Publication Date:

1982

Serial:

Transportation Research Record

Issue Number: 888
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309035007

Media Type:

Print

Features:

Figures (12) ; Photos (5) ; References (9) ; Tables (1)

Uncontrolled Terms:

Crack propagation

Old TRIS Terms:

Subject Areas:

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways

Files:

TRIS, TRB

Created Date:

May 31 1983 12:00AM

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