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Title:

CHARACTERIZATION OF RUTTING POTENTIAL OF LARGE-STONE ASPHALT MIXES IN KENTUCKY

Accession Number:

00600672

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309050162

Abstract:

Large-stone mixes are becoming a popular means for reducing rutting in flexible pavements. Heavy concentration of aggregate interlock in large-stone mixes allows for efficient dissipation of compressive and shear stresses that are otherwise known to be responsible for rutting and shoving in flexible pavements. Mix design procedures and laboratory testing for characterization of rutting potential of large-stone asphalt mixes (LSAMs) in Kentucky are documented. A series of large-stone aggregate gradations was studied. In cooperation with the Kentucky Department of Highways and representatives of the asphalt industry, a promising aggregate gradation was selected. On the basis of the findings of this study, several test sections were constructed on coal-haul corridors throughout Kentucky. At this time, these LSAM sections have been in service for less than 1 year; therefore, any conclusion on the performance is premature. However, performance-oriented laboratory test results indicate that higher levels of structural capacity and rutting resistance, as compared with conventional hot mix asphalt, can be achieved by using LSAMs in flexible pavements.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1259, Chip Seals, Friction Courses, and Asphalt Pavement Rutting 1990.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 #:

01410821

Authors:

Mahboub, Kamyar
Allen, David L

Pagination:

p. 133-140

Publication Date:

1990

Serial:

Transportation Research Record

Issue Number: 1259
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309050162

Features:

Figures (7) ; References (12) ; Tables (3)

Uncontrolled Terms:

Rut

Geographic Terms:

Kentucky

Subject Areas:

Geotechnology; Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials; I36: Aggregates

Files:

TRIS, TRB, ATRI

Created Date:

Oct 31 1990 12:00AM

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