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Title:

EVALUATION OF TEST METHODS USED TO QUANTIFY SAND SHAPE AND TEXTURE

Accession Number:

00625706

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309054028

Abstract:

There are no methods or criteria for determining the acceptability of sands for use in asphalt mixtures in terms of their effects on rutting. Some natural sands perform acceptably while others lead to rutting, shoving, and bleeding. In this study, sands were tested using four methods currently used to quantify particle shape and texture. This was done to determine whether they provide information on how the sands will affect mixture performance, in terms of rutting susceptibilty. Each method had at least one poor-performing sand that ranked equal to or higher than a good-performing sand. Therefore, no criteria for acceptability could be developed. The methods cannot account for the gradation of the sand and its effect on the optimal binder content of a mixture. However, it may be possible to eliminate very poor sands using certain methods. The gyratory testing machine (GTM) was used to examine the combined effects of shape and texture, gradation, and quantity of sand on the resistances of mixtures to plastic flow. The GTM was not sensitive to the type of sand.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1362, Aggregate and Pavement-Related Research. 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 #:

01405044

Language:

English

Authors:

Mogawer, Walaa S
Stuart, Kevin D

Pagination:

p. 28-37

Publication Date:

1992

Serial:

Transportation Research Record

Issue Number: 1362
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309054028

Features:

Figures (1) ; References (15) ; Tables (12)

Old TRIS Terms:

Subject Areas:

Geotechnology; Highways; Materials; I31: Bituminous Binders and Materials; I36: Aggregates

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 1993 12:00AM

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