Abstract
This paper describes an experimental program that was aimed at investigating the behavior of self-consolidating concrete (SCC) containing Class F fly ash. The fresh state properties of the concrete were assessed using methods of segregation and flow and 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.
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