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Title:

COMPARISON OF TREATMENT METHODS INVOLVING POLYMER IMPREGNATION FOR ABATING CORROSION IN OVERLAID BRIDGE DECKS

Accession Number:

00627140

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309054141

Abstract:

To investigate the corrosion of the reinforcing steel (rebars) in bridge decks, concrete laboratory specimens with rebars were cast and subjected to a chloride environment. The corrosion potential and rate were monitored with Cu-CuSO4 half-cell and three electrode linear-polarization (3 LP) devices. When active corrosion had been initiated, five rehabilitation treatment methods were applied to the corroding specimens: latex-modified concrete (LMC) overlay, low-slump dense concrete (LSDC) overlay, polymer-impregnated concrete, LMC overlay with polymer impregnation, and LSDC with polymer impregnation. The monomer system used was 90% methyl methacrylate (MMA), 10% trimethylolpropene trimethacrylate and 0.5% of the above monomer mix of azobisiobutyronitrile. The impregnated specimens were grooved and dried to 230 deg F before impregnation and subsequent polymerization. The posttreatment corrosion rates were used for analyzing the effectiveness of the various treatment methods. The treatment methods investigated were able to reduce the corrosion rate dramatically compared with untreated specimens. However, the difference in effectiveness among the five methods was insignificant.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1371, Bridge, Culvert, and Tunnel 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 #:

01405120

Language:

English

Authors:

Dutta, Tapas
Weyers, Richard E
Al-Qadi, Imad L

Pagination:

p. 47-52

Publication Date:

1992

Serial:

Transportation Research Record

Issue Number: 1371
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309054141

Features:

Figures (4) ; References (14) ; Tables (1)

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls

Files:

TRIS, TRB, ATRI

Created Date:

Mar 24 1993 12:00AM

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