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Edition:Final report.
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Abstract:Fly ash was used to replace 15% of the cement in C3WR and C6WR concrete
paving mixes containing ASTM C494 Type A water reducin9 admixtures. Two Class
C ashes and one Class F ash from Iowa approved sources were examined in each
mix. When Class C ashes were used they were substituted on the basis of 1
pound of ash added for each pound of cement deleted. When Class F was used it
was substituted on the basis of 1.25 pounds of ash added for each pound of
cement deleted.
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