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Title:

EVALUATION OF TEXTURAL RETENTION OF PAVEMENT SURFACE AGGREGATES

Accession Number:

00713595

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/03611981

Abstract:

Skid resistance of bituminous surface courses is related to the components of the mixture and construction procedures. An important element of the mixture is the aggregate surface texture and shape. Aggregates for use in these wearing courses must retain sufficient microtexture over time to contribute to a safe, skid-resistant pavement for the motoring public. The Tennessee textural retention method (TTRM) is used to characterize the aggregate particle shape initially and at various aging intervals to predict the aggregate's ability to retain its microtexture. The TTRM uses single-size aggregate (6.35 to 9.52 mm), the Los Angeles abrasion device, and a modified version of the National Aggregate Association's Particle Shape Tester (ASTM C 1252) to provide particle shape and texture data. In a preliminary evaluation, the TTRM was able to discern two proven performers from several other siliceous limestones. The test method appears to have excellent repeatability and is virtually operator insensitive. The method may be helpful in identifying potential aggregates for use in bituminous surface courses by predicting their ability to resist the polishing action of traffic.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1486, Environmental Testing and Evaluation of Stabilized Wastes, Performance of Stabilized Materials, and New Aggregate Tests. 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 #:

01399784

Language:

English

Authors:

Crouch, L K
Gothard, Joel D
Head, Gary
Goodwin, William A

Pagination:

p. 124-129

Publication Date:

1995

Serial:

Transportation Research Record

Issue Number: 1486
Publisher: Transportation Research Board
ISSN: 0361-1981

Features:

Figures (2) ; References (4) ; Tables (2)

Uncontrolled Terms:

Aggregate shape; Repeatability

Old TRIS Terms:

Subject Areas:

Geotechnology; Highways; I36: Aggregates

Files:

TRIS, TRB

Created Date:

Nov 22 1995 12:00AM

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