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Title:

ACCELERATED PERFORMANCE TESTING OF BRIDGE PAINTS FOR SEACOAST ENVIRONMENTS

Accession Number:

00300417

Record Type:

Component

Availability:

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

Abstract:

The design and operation are described of an accelerated-corrosion-environment chamber for evaluation of metal protective paints. The findings are discussed of experiments designed to test the reproducibility of the results obtained in the chamber and are correlated with the limited available data from an exterior weathering test fence at a tidal estuary in Brunswick, Georgia. The fundamental premise underlying the design of the chamber is that the primary stresses that account for paint-system failures on structural steel in seacoast environments are caused by continuing cycles of wetting and drying and heating and cooling in the presence of the corrosion-stimulating chloride ion. The major conclusions are that the chamber exhibits high precision of test results within runs and an exceptionally close similarity in a greatly accelerated test to the modes of panel failure observed in the field. The prospects for close laboratory-field correlation appear very good but, for general use, this correlation will require control system techniques that have been proposed but not yet validated by comprehensive experimental studies. /Author/

Supplemental Notes:

Publication of this paper sponsored by Committee on Coatings, Signing and Marking Materials . 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 #:

01411528

Authors:

Tooke Jr, W R

Pagination:

pp 14-23

Publication Date:

1978

Serial:

Transportation Research Record

Issue Number: 692
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

57th Annual Meeting of the Transportation Research Board

Location: Washington District of Columbia, United States
Date: 1978-1-16 to 1978-1-20

ISBN:

0309028388

Media Type:

Digital/other

Features:

Figures (13) ; Photos; References (18) ; Tables (2)

Uncontrolled Terms:

Bridge maintenance

Subject Areas:

Bridges and other structures; Geotechnology; Highways; Maintenance and Preservation; Materials

Files:

TRIS, TRB

Created Date:

Sep 29 1979 12:00AM

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