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Title:

RATIONAL APPROACH TO DESIGN OF BITUMINOUS STOCKPILE PATCHING MIXTURES

Accession Number:

00348698

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309032638

Abstract:

Although a considerable amount of maintenance expenditure is spent on bituminous patching, the performance of conventional cold stockpile patching materials has been generally unsatisfactory. No concerted effort has been made to design these mixtures on a rational basis. The challenge of designing these mixtures are reviewed, and some new concepts vital for the survival of these mixtures in the adverse environment of potholes are presented. These concepts among others include the use of finer and predominantly one-sized gradation for the aggregate and the maximum dust content (minus 200 fraction) of two percent in the mixture. A formulation based on these concepts has been developed and used in the field during the past three years. The data obtained from the field and laboratory evaluation of the suggested formulation are reported. Laboratory test data indicate the effect of dust content on the workability of these mixtures. Attempts were made to quantify the workability of the mixtures by using a cement concrete penetrometer. However, the results were inconsistent and merely show a trend of higher penetrometer readings for mixtures with poor workability. (Authors)

Supplemental Notes:

Publication of this paper sponsored by Committee on Characteristics of Bituminous Paving Mixtures to Meet Structural Requirements. 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 #:

01411629

Authors:

Kandhal, Prithvi S
Mellott, Dale B

Pagination:

pp 16-22

Publication Date:

1981

Serial:

Transportation Research Record

Issue Number: 821
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

60th Annual Meeting of the Transportation Research Board

Location: Washington District of Columbia, United States
Date: 1981-1-12 to 1981-1-16

ISBN:

0309032638

Media Type:

Print

Features:

Figures (4) ; Photos (4) ; References (4)

Subject Areas:

Highways; Maintenance and Preservation; Materials; I31: Bituminous Binders and Materials

Files:

TRIS, TRB

Created Date:

Jun 30 1982 12:00AM

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