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Title:

WASHINGTON STATE CHIP SEAL STUDY

Accession Number:

00600661

Record Type:

Component

Availability:

Find a library where document is available


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

Abstract:

Approximately 50% of the Washington State highway system, 3,500 center line miles, has a bituminous surface treatment (BST) surface. The use of BST is coincident with that portion of the state system with traffic volumes of 2,000 ADT or less. Recent specification changes such as increasing emulsion yields, decreasing aggregate yields, reducing the allowable time between placement of emulsion and aggregate, and early brooming, along with central office involvement in the BST process have positively affected the quality of the Washington State Department of Transportation's chip seals. However, some of the chip seals constructed in western Washington in 1988 generated adverse publicity because of dust, traffic delays, and windshield damage. This study recaps the recent specification and construction procedure changes, looks into the details of nine recently completed chip seal projects in western Washington, and also supports the following recommendations, among others: use of polymerized emulsions in western Washington, strong central office support and review of the BST program, use of maintenance people with strong working BST experience as chip seal inspectors, use of finer chips in areas of heavy bicycle traffic to provide a smoother, more uniform surface, and early season completion of BST work.

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:

Jackson, Dennis C
Jackson, Newton C
Mahoney, Joe P.

Pagination:

p. 1-10

Publication Date:

1990

Serial:

Transportation Research Record

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

ISBN:

0309050162

Features:

Figures (3) ; References (5) ; Tables (4)

Geographic Terms:

Washington (State)

Old TRIS Terms:

Washington (State)

Subject Areas:

Administration and Management; Construction; Geotechnology; Highways; Maintenance and Preservation; Materials; Research; I31: Bituminous Binders and Materials; I36: Aggregates; I61: Equipment and Maintenance Methods

Files:

TRIS, TRB, ATRI

Created Date:

Oct 31 1990 12:00AM

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