Minnesota · answered by Verika · verified against sources
What slump is allowed for structural concrete on Minnesota highway projects?
For structural concrete on Minnesota highway projects, slump ranges vary by mix grade (e.g., 3S12: 1/2–1", 3S52: 2–5", 3Y42: 2–4") as defined in Table 2461.2-5/6/7 [2]. Slump must comply with these ranges; deviations trigger monetary deductions (≤1.5" above range: $20/yd³; >1.5" above: $50/yd³) [5]. Slip-form concrete may exceed max slump if approved by the Engineer [1,5].
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