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I1 All concrete, except lean concrete, shall be batched in a prequalified manual, semi- <br /> 2 automatic, or automatic plant as described in Section 6-02.3(4)A. <br /> I <br /> 3 <br /> 4 6-02.3(4)0 Temperature and Time For Placement <br /> 5 The following is inserted after the first sentence of the first paragraph: <br /> II6 <br /> 7 The upper temperature limit for placement for Class 4000D concrete may be increased to a <br /> 8 maximum of 80°F if allowed by the Engineer. <br /> 9 <br /> ' 10 6-02.3(5)C Conformance to Mix Design <br /> 11 Item number 1 of the second paragraph is revised to read: <br /> 12 <br /> I13 1. Cement weight plus 5 percent or minus 1 percent of that specified in the mix design. <br /> 14 <br /> 15 6-02.3(6)A1 Hot Weather Protection <br /> I16 The first paragraph is revised to read: <br /> 17 <br /> 18 The Contractor shall provide concrete within the specified temperature limits. Cooling of the <br /> 19 coarse aggregate piles by sprinkling with water is permitted provided the moisture content <br /> I 20 is monitored, the mixing water is adjusted for the free water in the aggregate and the <br /> 21 coarse aggregate is removed from at least 1 foot above the bottom of the pile. Sprinkling of <br /> I22 fine aggregate piles with water is not allowed. Refrigerating mixing water or replacing all or <br /> 23 part of the mixing water with crushed ice is permitted, provided the ice is completely melted <br /> 24 by placing time. <br /> I25 <br /> 26 The second sentence of the second paragraph is revised to read: <br /> 27 <br /> 28 These surfaces include forms, reinforcing steel, steel beam flanges, and any others that <br /> I29 touch the concrete. <br /> 30 <br /> 31 6-02.3(7) Vacant <br /> I32 This section, including title, is revised to read: <br /> 33 <br /> 34 6-02.3(7) Tolerances <br /> I <br /> 35 Unless noted otherwise, concrete construction tolerances shall be in accordance with this <br /> 36 section. Tolerances in this section do not apply to cement concrete pavement. <br /> 37 <br /> I <br /> 38 Horizontal deviation of roadway crown points, cross-slope break points, and curb, barrier or <br /> 39 railing edges from alignment or work line: ±1.0 inch <br /> 40 <br /> I41 Deviation from plane: ±0.5 inch in 10 feet <br /> 42 <br /> 43 Deviation from plane for roadway surfaces: ±0.25 inch in 10 feet <br /> I44 <br /> 45 Deviation from plumb or specified batter: ±0.5 inch in 10 feet. but not to exceed a total of <br /> 46 ±1.5 inches <br /> 47 <br /> I48 Vertical deviation from profile grade for roadway surfaces: ±1 inch <br /> 49 <br /> 50 Vertical deviation of top surfaces (except roadway surfaces): ±0.75 inch <br /> City of Everett Page AM-33 Amendments <br /> Everett Downtown Streetscape Improvement March 22, 2019 <br />