Rhode Island · answered by Verika · verified against sources
What slump is allowed for structural concrete on Rhode Island highway projects?
For structural concrete on Rhode Island highway projects, the allowed slump range is 2–4 inches (measured at discharge) for all classes except where admixtures permit higher slump (up to 6 in. with Type A water reducer or 9 in. with Type F/G high-range admixtures). Slump must not exceed 4 inches for surfaces sloped >4% [3].
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