Oklahoma · answered by Verika · verified against sources
What slump is allowed for structural concrete on Oklahoma highway projects?
For structural concrete on Oklahoma highway projects, slump is not explicitly limited in general specs, but for Class AA concrete in drilled shafts (516.02.B), slump must be 6 in to 8 in [150 mm to 200 mm] at placement start and at least 4 in [100 mm] at completion. For Class P concrete (701.01), slump must reflect workability without segregation, with a max of 9 in [230 mm] if using high-range water-reducing admixtures [1,2].
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