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1 <br /> 1 <br /> 2 Item number 6 of the first paragraph (after the preceding Amendment is applied) is <br /> 3 renumbered to 5. <br /> 4 <br /> 5 6-02.3(2)B Commercial Concrete <br /> 6 The second paragraph is revised to read: <br /> 7 <br /> 8 Where concrete Class 3000 is specified for items such as, culvert headwalls, plugging <br /> 9 culverts, concrete pipe collars, pipe anchors, monument cases, Type PPB, PS, I, FB <br /> 10 and RM signal standards, pedestals, cabinet bases, guardrail anchors, fence post <br /> 11 footings, sidewalks, concrete curbs, curbs and gutters, and gutters, the Contractor may <br /> 12 use commercial concrete. If commercial concrete is used for sidewalks, concrete curbs, <br /> 13 curbs and gutters, and gutters, it shall have a minimum cementitious material content of <br /> 14 564 pounds per cubic yard of concrete, shall be air entrained, and the tolerances of <br /> 15 Section 6-02.3(5)C shall apply. <br /> 16 <br /> 17 6-02.3(4)D Temperature and Time For Placement <br /> 18 The following is inserted after the first sentence of the first paragraph: <br /> 19 <br /> 20 The upper temperature limit for placement for Class 4000D concrete may be increased <br /> 21 to a maximum of 80°F if allowed by the Engineer. <br /> 22 <br /> 23 6-02.3(5)C Conformance to Mix Design <br /> 24 Item number 1 of the second paragraph is revised to read: <br /> 25 <br /> 26 1. Cement weight plus 5 percent or minus 1 percent of that specified in the <br /> 27 mix design. <br /> 28 <br /> 29 6-02.3(6)A1 Hot Weather Protection <br /> 30 The first paragraph is revised to read: <br /> 31 <br /> 32 The Contractor shall provide concrete within the specified temperature limits. Cooling of <br /> 33 the coarse aggregate piles by sprinkling with water is permitted provided the moisture <br /> 34 content is monitored, the mixing water is adjusted for the free water in the aggregate <br /> 35 and the coarse aggregate is removed from at least 1 foot above the bottom of the pile. <br /> 36 Sprinkling of fine aggregate piles with water is not allowed. Refrigerating mixing water or <br /> 37 replacing allpart of the mixingwater with crushed ice is permitted, provided the ice is <br /> P 9 or <br /> 38 completely melted by placing time. <br /> 39 <br /> 40 The second sentence of the second paragraph is revised to read: <br /> 411 <br /> 42 These surfaces include forms, reinforcing steel, steel beam flanges, and any others that <br /> 43 touch the concrete. <br /> 44 <br /> 45 6-02.3(10)D4 Monitoring Bridge Deck Concrete Temperature After Placement <br /> 46 This section, including title, is revised to read: <br /> 47 <br /> 48 6-02.3(10)D4 Vacant <br /> 49 <br /> 50 6-02.3(10)D5 Bridge Deck Concrete Finishing and Texturing <br /> 51 In the third subparagraph of the first paragraph, the last sentence is revised to read: <br /> 52 <br /> WEST MARINE VIEW DRIVE UTILITIES PAGE 17 OF 60 August 2018 <br /> WORK ORDER#3588 <br /> WSDOT AMENDMENTS Rev 4/2/18 <br />