role of calcium-hydroxide in the maintenance of passivity of steel

File
Publisher
Florida Atlantic University
Date Issued
1988
Description
The objective of this study was to determine whether the presence of undissolved calcium hydroxide at the steel interface helped maintain or delay the breakdown of passivity under adverse conditions, such as the presence of chlorides and carbonation. Saturated calcium hydroxide solution was used as an electrolyte in the test cell, and steel specimens were exposed to a range of chloride ion concentration and carbonation. The results indicate that undissolved calcium hydroxide has an important role in the passivation of reinforcing steel. Also, the critical chloride to hydroxide ratio may be more relevant in characterizing the breakdown of passivity than the threshold value of total or soluble chloride present in the electrolyte. It was noted that in the presence of undissolved calcium hydroxide, steel remained passive for as high a chloride ion concentration as 0.54% (by weight of electrolyte).
Note

College of Engineering and Computer Science

Language
Type
Extent
71 p.
Subject (Topical)
Identifier
14429
Additional Information
College of Engineering and Computer Science
FAU Electronic Theses and Dissertations Collection
Thesis (M.S.)--Florida Atlantic University, 1988.
Date Backup
1988
Date Text
1988
Date Issued (EDTF)
1988
Extension


FAU
FAU
admin_unit="FAU01", ingest_id="ing1508", creator="staff:fcllz", creation_date="2007-07-19 02:36:37", modified_by="staff:fcllz", modification_date="2011-01-06 13:09:09"

IID
FADT14429
Issuance
monographic
Person Preferred Name

Sohanghpurwala, Ali Akbar S.
Graduate College
Physical Description

71 p.
application/pdf
Title Plain
role of calcium-hydroxide in the maintenance of passivity of steel
Use and Reproduction
Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
http://rightsstatements.org/vocab/InC/1.0/
Origin Information

1988
monographic

Boca Raton, Fla.

Florida Atlantic University
Physical Location
Florida Atlantic University Libraries
Place

Boca Raton, Fla.
Sub Location
Digital Library
Title
role of calcium-hydroxide in the maintenance of passivity of steel
Other Title Info

The
role of calcium-hydroxide in the maintenance of passivity of steel