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Title:

USE OF GYRATORY TESTING MACHINE TO EVALUATE SHEAR RESISTANCE OF ASPHALT PAVING MIXTURE

Accession Number:

00600667

Record Type:

Component

Availability:

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

Abstract:

Procedures currently used in the design of mixtures have several major deficiencies that affect the reliability of the designed mix. The results obtained from investigations of mix behavior in the gyratory testing machine (GTM) indicate that deficiencies in mix design are primarily associated with the characteristics of the aggregates, particularly the gradation. Mixtures compacted in the GTM to simulate field compaction were tested at 60 deg C (140 deg F) in the GTM to simulate traffic densification. It was observed that high-quality aggregate blends (no significant rutting) exhibited low sensitivity to change in asphalt content and maintained high shear resistance except at the highest asphalt content. GTM tests conducted on mixtures duplicating those observed to have early and excessive pavement rutting exhibited high sensitivity to asphalt content, lower shear resistance, and sensitivity to changes in gradation. The results obtained from this investigation indicated that the GTM can be used to evaluate the effect of aggregate characteristics on hot-mix properties and to develop procedures for mix design.

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:

Sigurjonsson, Sigurjon
Ruth, Byron E

Pagination:

p. 63-78

Publication Date:

1990

Serial:

Transportation Research Record

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

ISBN:

0309050162

Features:

Figures (11) ; References (6) ; Tables (20)

Uncontrolled Terms:

Rut

Old TRIS Terms:

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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