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337-7 .3 Temperature Requirements for FC-5 : 337-7.3 . 1 Air Temperature at Laydown : Spread the mixture only when the air temperature (the temperature in the shade away from artificial heat) is at or above 65 °F . As an exception, place the mixture at temperatures no lower than 60°F , only when approved by the Engineer based on the Contractor ' s demonstrated ability to achieve a satisfactory surface texture and appearance of the finished surface . The minimum ambient temperature may be further reduced to 55 °F when using warm mix technology, if agreed to by both the Engineer and the Contractor. 3374.3 .2 Temperature of the Mix : Heat and combine the asphalt binder and aggregate in a manner to produce a mix having a temperature, when discharged from the plant, meeting the requirements of 330- 6 . 3 . Meet all requirements of 330- 9 . 1 . 2 at the roadway. The target mixing temperature shall be established at 320°F for mixtures utilizing ARB - 12 asphalt binder. For mixtures utilizing PG 76-22 asphalt binder, the target mixing temperature shall be established by the Contractor. The target mixing temperature may be reduced when using warm mix technology. 337-7.4 Compaction of FC-5 : Provide two , static steel -wheeled rollers , with an effective compactive weight in the range of 135 to 200 PLI, determined as follows : PLI — TotalWeightof Roller (pounds) TotalWidthof Drums ( inches) (Any variation of this equipment requirement must be approved by the Engineer. ) Establish an appropriate rolling pattern for the pavement in order to effectively seat the mixture without crushing the aggregate . In the event that the roller begins to crush the aggregate , reduce the number of coverages or the PLI of the rollers . If the rollers continue to crush the aggregate, use a tandem steel-wheel roller weighing not more than 135 lb . per linear inch (PLI) of drum width . 337-7.5 Temperature Requirements for FC-9 .5 and FC42 . 5 : 337-7. 5 . 1 Air Temperature at Laydown : Spread the mixture only when the air temperature (the temperature in the shade away from artificial heat) is at or above 45 °F . The minimum ambient temperature may be reduced by 5 °F when using warm mix technology, if agreed to by both the Engineer and the Contractor. 337-7 . 5 . 2 Temperature of the Mix : Heat and combine the asphalt binder and aggregate in a manner to produce a mix having a temperature, when discharged from the plant, meeting the requirements of 330- 6 . 3 . Meet all requirements of 330- 9 . 1 . 2 at the roadway. 337-7 . 6 Prevention of Adhesion : To minimize adhesion to the drum during the rolling operations , the Contractor may add a small amount of liquid detergent to the water in the roller. At intersections and in other areas where the pavement may be subjected to cross - traffic before it has cooled, spray the approaches with water to wet the tires of the approaching vehicles before they cross the pavement . 337-7. 7 Transportation Requirements of Friction Course Mixtures : Cover all loads of friction course mixtures with a tarpaulin, or waterproof cover, meeting requirements of 320 - 5 . 4 . 337- 7. 8 Asphalt Rubber Binder Requirements : Meet the requirements of Section 336 Asphalt Rubber Binder, particularly noting testing and action requirements to be met at the project site . - 106 - FPID ( S ) : 423186 - 1 - 58 - 01 - �_