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Mix <br />Number <br />1 W82 <br />Intended <br />Use II <br />Bridge <br />Girders <br />Table 2462-6 <br />Precast Concre e Mix Design Requirements <br />Maximum <br />Cementitious %SCM <br />Content (Fly Ash/ <br />(lbs/cy) Slag/ <br />Ternary) <br />Maximum <br />w/c ratio <br />0.42 660 — 850 30/35/40 <br />Noisewall <br />posts, box <br />3W82 culverts, 0.42 <br />bridge <br />girders' <br />Wetcast <br />retaining <br />wall <br />blocks, <br />noisewall <br />Y panels, <br />equipment <br />pad <br />Thin Panel <br />3Y82 Retaining 0.45 <br />Walls <br />3Y82 <br />SPECIAL PROVISIONS - SP20I6 BOOK <br />Last Revision by CO Special Provisions: 2/08/17 <br />Designation <br />0 <br />1 <br />2 <br />3 <br />4 <br />7 <br />8 <br />Created August 20, 2015 <br />Page 50 <br />SP 0202-101 <br />Table 2462-3 <br />Coarse Aggregate Designation for Concrete <br />Coarse Aggregate Gradation <br />Job Mix Formula (JMF) combination of fine and coarse aggregate <br />Table 3137-4, "Coarse Aggregate Designation for Concrete' <br />ASTM #467 <br />ASTM #67 <br />ASTM #7 <br />ASTM #89 <br />CA-70 <br />CA-80 <br />S-33.5 MnDOT 2462.2.F.1.e shall be deleted and replaced with the following: <br />F.1.e Additional Concrete Mix Designation Digits <br />Specialty concrete mixes require additional concrete digits in accordance with Table 2462-6. The <br />Precaster may add additional digits to the right of the required digits in the concrete mix number. <br />S-33.6 MnDOT 2462.2.F.1.f and MnDOT 2462.2.F.2.g shall be deleted. <br />S-33.7 Table 2462-6 of MnDOT 2462.2.F.2.a shall be deleted and replaced with the following: <br />Concrete <br />Grade <br />W <br />0.45 <br />660 - 850 30/35/40 <br />605 — 850 30/35/40 <br />605 — 850 30/35/40 <br />Slump <br />Range <br />1 — 8" <br />Minimum <br />Compressive 3137 <br />Strength, f c Spec. <br />(28-day) # <br />Design <br />Strength Per 2.D.1 <br />Plan <br />Design <br />1 — 8" Strength Per 2.D.1 <br />Plan <br />1 — 8" 4000 psi 2.D.1 <br />1 — 8" 4000 psi 2.D.2 <br />