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1 Engineer, such adjusted JMF's shall constitute the basis for acceptance of the I <br /> 2 HMA mixture. <br /> 3 <br /> I <br /> 4 5-04.2(2)B Using Warm Mix Asphalt Processes <br /> 5 The Contractor may, at the Contractor's discretion, elect to use warm mix <br /> 6 asphalt (WMA) processes for producing HMA. WMA processes include <br /> I <br /> 7 organic additives, chemical additives, and foaming. The use of WMA is <br /> 8 subject to the following: <br /> 9 <br /> 10 • Do not use WMA processes in the production of High RAP/Any RAS <br /> 11 mixtures. <br /> 12 • Before using WMA processes, obtain the Engineer's approval using I 13 WSDOT Form 350-076 to describe the proposed WMA process. <br /> 14 <br /> 15 5-04.3 Construction Requirements <br /> 16 5-04.3(1) Weather Limitations <br /> I <br /> 17 Do not place HMA for wearing course on any Traveled Way beginning October 1st <br /> 18 through March 31st of the following year, without written concurrence from the <br /> 19 Engineer. <br /> I <br /> 20 <br /> 21 Do not place HMA on any wet surface, or when the average surface temperatures <br /> 22 are less than those specified in Table 5, or when weather conditions otherwise I 23 prevent the proper handling or finishing of the HMA. <br /> 24 <br /> Table 5 <br /> I <br /> Minimum Surface Temperature for Paving <br /> Compacted Wearing Course Other Courses <br /> Thickness (Feet) I Less than 0.10 55°F 45°F <br /> 0.10 to 0.20 45°F 35°F <br /> More than 0.20 35°F 35°F <br /> I <br /> 25 <br /> 26 5-04.3(2) Paving Under Traffic <br /> 27 These requirements apply when the Roadway being paved is open to traffic. <br /> I <br /> 28 <br /> 29 In hot weather, the Engineer may require the application of water to the pavement <br /> 30 to accelerate the finish rolling of the pavement and to shorten the time required <br /> 31 before reopening to traffic. <br /> I <br /> 32 <br /> 33 During paving operations, maintain temporary pavement markings throughout the <br /> 34 project. Install temporary pavement markings on the Roadway prior to opening to <br /> I <br /> 35 traffic. Temporary pavement markings shall comply with Section 8-23. <br /> 36 <br /> 37 5-04.3(3) Equipment I 38 5-04.3(3)A Mixing Plant <br /> 39 Equip mixing plants as follows. <br /> 40 I 41 1. Use tanks for storage and preparation of asphalt binder which: <br /> 42 <br /> 43 • Heat the contents by means that do not allow flame to contact <br /> 44 the contents or the tank, such as by steam or electricity. <br /> I <br /> 45 <br /> I <br /> AMENDMENTS TO THE 2016 STANDARD SPECIFICATIONS BOOK <br /> I <br /> Revised: 8/1/16 <br />