The effect of fly ash on the sulfate resistance of concrete

Tikalsky, P. J. (Paul J.); Carrasquillo, R. L.; University of Texas at Austin. Center for Transportation Research

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The effect of fly ash on the sulfate resistance of concrete

1989-08-01
By Tikalsky, P. J. (Paul J.) ; Carrasquillo, R. L.

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Details:

Creators:

Tikalsky, P. J. (Paul J.) ; Carrasquillo, R. L.

Tikalsky, P. J. (Paul J.) ; Carrasquillo, R. L. Less -
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas. Division of Transportation Planning ; United States. Federal Highway Administration

Texas. Division of Transportation Planning ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Concrete Tests Durability Fly Ash Portland Cement Sulfate Resisting Cement
Publication/ Report Number:

FHWA/TX-90+481-5 ; NTIS-PB90267097 ; Research Report 481-5 ; CTR 3-5/9-87-481-5

FHWA/TX-90+481-5 ; NTIS-PB90267097 ; Research Report 481-5 ; CTR 3-5/9-87-481-5 Less -
Resource Type:

Tech Report
TRIS Online Accession Number:

497282
Edition:

Interim report
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance;
Abstract:

The durability of concrete is determined by its ability to endure the physical and environmental surroundings without losing the functional properties and structural integrity of the original design. Concrete containing fly ash can be proportioned to meet the durability requirements of a wide range of applications, such as concrete for mass structures, pavements, structural members, and high strength applications. One area where the long term performance of concrete containing fly ash is not clearly understood is in sulfate environments. The sulfate attack mechanism in concrete containing fly ash has been related in recent years to the mineralogical and chemical composition of the cementitious and pozzolanic material. This study investigated the interrelationship between the physical, mineralogical and chemical characteristics of portland cement, fly ash, and their proportions, and the sulfate resistance of concrete containing fly ash. Eighteen fly ashes and five portland cements have been studied at four levels of volumetric replacement of fly ash for portland cement. Other variables studied were workability, air content, curing conditions, and permeability. The fly ashes were characterized by performing chemical, physical and mineralogical analyses. Over 700 specimens were submerged in a 10% sodium sulfate solution. The specimens were measured for expansion, mass change, and cracking. The study has revealed a strong correlation between the glassy composition of fly ash and the sulfate resistance of concrete.
Format:

PDF
Funding:

Study 3-5/9-87-481
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:9f35280894a3d3d0bca1cdd80c16bf6a219f9b069086329eb309c2bd91313805
Download URL:

https://rosap.ntl.bts.gov/view/dot/16241/dot_16241_DS1.pdf
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The effect of fly ash on the sulfate resistance of concrete

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