Description
The primary purpose of this project was to determine the extent to which two fly ashes readily available in Alberta affect the properties of concrete considered for use in bridge works, and accordingly to establish the conditions under which fly ash can safely be specified in such bridge works. The results confirm many potential advantages of using fly ash in air-entrained concrete, including reduced heat of hydration, the option to increase specified strength or reduce the unit volume cost, or some combination of both, particularly in massive bridge components, along with the prospect of satisfactory freeze-thaw durability under moist saltĀ-free exposure conditions, increased resistance to chloride ion penetration, and reduced shrinkage potential. Most of these benefits are realized more fully using a superplasticizing admixture instead of a conventional water-reducing admixture. The main concern and limitation associated with fly ash utilization in bridge works is unsatisfactory scaling resistance under conditions of freezing and thawing with deicing salts. Criteria limiting such utilization have been established.
Updated
June 1, 1996
Tags
Resources
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Fly ash utilization in bridge works
Downloads: 31
Title and publication information
Type
Alternative Title
Report no. ABTR/RD/RR-96/04 -- Subject area: H32 -- Project no. 94004.
Extent
55 pages
Frequency
Once
Publisher / Creator Information
Creator
Publisher
Transportation and Utilities (1986-1999)
Contributor
Contributor
Place of Publication
Subject Information
Topic
Resource Dates
Date Created
1996-06-01
Date Added
2021-03-03T17:26:50.725632
Date Modified
1996-06-01
Date Issued
1996-06-01
Audience information
Language
Identifiers
Local Identifier
Report no. ABTR/RD/RR-96/04.
Usage / Licence
Usage Considerations
This project was co-sponsored by the following organizations and companies: - Canada Centre for Mineral and Energy Technology (CANMET) - Lafarge Canada Inc., Calgary - Alberta Power Limited - TransAlta Utilities Corporation - Pozzolanic International (Alberta) Inc.
Licence
Contact
Contact Name
Alberta Transportation