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INFLUENCE OF SELECTED ADMIXTURES UPON CONCRETE CRACKING DUE TO EMBEDDED METAL CORROSION

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Date Issued:
1978
Summary:
The influence of selected iron chelating agents upon corrosion and cracking of steel reinforced concrete has been investigated. Five chelating agents including EDTA, DTPA, TEA, HEDTA and Chel-138 were used. The experiments involved determination of (1) the influence of iron chelating agents on iron solubility limit, (2) the effect of admixtures upon compressive strength of concrete, (3) the influence of chelating admixtures upon steel corrosion and (4) cracking resistance of concrete specimens with and without selected iron chelating agents. Results from test groups (1) and (3) were encouraging; however, compressive strength of concrete specimens with admixtures was less than for specimens with no admixture. In addition, specimens with chelating admixtures had approximately 5.5 to 82 percent shorter cracking time than for the no admixture ones. Explanations for this are presented, and certain conclusions are reached regarding the usefulness of a chelating admixture for mitigating concrete cracking.
Title: INFLUENCE OF SELECTED ADMIXTURES UPON CONCRETE CRACKING DUE TO EMBEDDED METAL CORROSION.
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Name(s): YAU, SHI-SHEN
Florida Atlantic University, Degree Grantor
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Issuance: monographic
Date Issued: 1978
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 67 p.
Language(s): English
Summary: The influence of selected iron chelating agents upon corrosion and cracking of steel reinforced concrete has been investigated. Five chelating agents including EDTA, DTPA, TEA, HEDTA and Chel-138 were used. The experiments involved determination of (1) the influence of iron chelating agents on iron solubility limit, (2) the effect of admixtures upon compressive strength of concrete, (3) the influence of chelating admixtures upon steel corrosion and (4) cracking resistance of concrete specimens with and without selected iron chelating agents. Results from test groups (1) and (3) were encouraging; however, compressive strength of concrete specimens with admixtures was less than for specimens with no admixture. In addition, specimens with chelating admixtures had approximately 5.5 to 82 percent shorter cracking time than for the no admixture ones. Explanations for this are presented, and certain conclusions are reached regarding the usefulness of a chelating admixture for mitigating concrete cracking.
Identifier: 13952 (digitool), FADT13952 (IID), fau:10775 (fedora)
Note(s): Thesis (M.S.E.)--Florida Atlantic University, 1978.
College of Engineering and Computer Science
Subject(s): Concrete Coatings--Testing
Ocean Engineering
Held by: Florida Atlantic University Libraries
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/13952
Sublocation: Digital Library
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.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.