Properties of self-consolidating concrete containing Class F fly ash: With a verification of the minimum paste volume method

Raissa P. Douglas, Van K. Bui, Yilmaz Akkaya, Surendra P. Shah

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Citations (Scopus)

Abstract

An experimental program which aimed at investigating the behavior of SCC containing Class F fly ash has been carried out. The fresh state properties of the concrete were assessed using methods of segregation and flow. The rheology of the paste matrix was also characterized and compared with a previously developed paste rheology model. In addition, compressive strength, chloride permeability, and mold-finish were evaluated The results indicate that it is possible to develop a SCC containing Class F fly ash that is high performing in its fresh state. Furthermore, the addition of fly ash was shown to reduce superplasticizer dosage, increase workability, and increase overall chloride permeability resistance. In addition, it was determined that the difference of densities between the aggregate and matrix influence the results of a previously developed paste rheology model.

Original languageEnglish
Title of host publicationWorkability of SCC
Subtitle of host publicationRoles of Its Constituents and Measurement Techniques
EditorsCaijun Shi, Kamal H. Khayat
PublisherAmerican Concrete Institute
Pages45-63
Number of pages19
ISBN (Electronic)9780870312007
Publication statusPublished - 9 Mar 2006
EventWorkability of SCC: Roles of Its Constituents and Measurement Techniques 2005 - Held at the ACI Spring 2005 Convention - New York, United States
Duration: 17 Apr 200520 Apr 2005

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-233
ISSN (Print)0193-2527

Conference

ConferenceWorkability of SCC: Roles of Its Constituents and Measurement Techniques 2005 - Held at the ACI Spring 2005 Convention
Country/TerritoryUnited States
CityNew York
Period17/04/0520/04/05

Bibliographical note

Publisher Copyright:
© 2006 American Concrete Institute. All rights reserved.

Funding

Raissa P. Douglas is a graduate student at the Center for Advanced Cement-Based Materials at Northwestern University, Evanston, Il. She received her MS in civil engineering from Northwestern University and her BS in civil engineering from Howard University. She is a past recipient of an ACI Student Fellowship and a PCA Research Fellowship. Her research interests include self-consolidating concrete, rheology, and formwork pressure. Financial support for this project was obtained from the Portland Cement Association and Illinois Clean Coal Institute. The fly ash was obtained from Dynegy Energy.

FundersFunder number
Dynegy Energy
Portland Cement Association and Illinois Clean Coal Institute
Division of Advanced Cyberinfrastructure

    Keywords

    • Fly ash
    • Permeability
    • Rheology
    • Self-consolidating concrete (SCC)

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