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Five fly ashes with widely varying lime contents from three countries were used for 25% of the cement by mass in identical concrete mixes, including the same quantity of air-entraining agent in each case. The hardened concrete resulted in a satisfactory air-void system in terms of freezing-thawing resistance, regardless of the lime content of fly ash.
Manager, Klohn Leonoff Ltd., Calgary, Alberta
Stock #: CCA10029J