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<br />,..., <br /> <br />. <br /> <br />.., <br />. <br /> <br />air temperature (the temperature in the shade away from artificial heat) is at or above 650F <br />[180C]. As an exception, place the mixture at temperatures lower than 650F [180C], only <br />when approved by the Engineer based on the Contractor's demonstrated ability to achieve <br />a satisfactory surface texture and appearance of the finished surface. In no case shall the <br />mixture be placed at temperatures lower than 600F [160C]. <br />337-7.3.2 Temperature of the Mix: Heat and combine the asphalt rubber <br />binder and aggregate in a manner to produce a mix having a temperature, when discharged <br />from the plant, meeting the requirements of 330-6.3. Meet all requirements of 330-9.1.2 <br />at the roadway. The target mixing temperature shall be established at 3200F [160oC]. <br />337-7.4 Compaction of FC-5: Provide two, static steel-wheeled rollers, with an <br />effective compactive weight in the range of 135 to 200 PLI [2.4 to 3.6 kg/mm], <br />determined as follows: <br /> <br />,., <br /> <br />. <br /> <br />.., <br /> <br />. <br /> <br />1""1 <br /> <br />. <br /> <br />,., <br />. <br /> <br />Non SI Units <br /> <br />" <br />. <br /> <br />PLI = Total Weight of Roller (pounds) <br />Total Width of Drums (inches) <br /> <br />,., <br />. <br /> <br />SI Units <br /> <br />II <br />. <br /> <br />k~ = Total Weight of Roller (kilograms) <br />mm Total Width of Drums (millimete rs) <br /> <br />., <br />. <br /> <br />,., <br /> <br />(Any variation of this equipment requirement must be approved by the Engineer.) Establish <br />an appropriate rolling pattern for the pavement in order to effectively seat the mixture <br />without crushing the aggregate. In the event that the roller begins to crush the aggregate, <br />reduce the number of coverages or the PLI of the rollers. If the rollers continue to crush the <br />aggregate, use a tandem steel-wheel roller weighing not more than 135 Ib/in (PLI) <br />[2.4 kg/mm] of drum width. <br />337-7.5 Temperature Requirements for FC-9.5 and FC-12.5: <br />337-7.5.1 Air Temperature at Laydown: Spread the mixture only when the <br />air temperature (the temperature in the shade away from artificial heat) is at or above 450F <br />[70C]. <br />337-7.5.2 Temperature of the mix: Heat and combine the asphalt rubber <br />binder and aggregate in a manner to produce a mix having a temperature, when discharged <br />from the plant, meeting the requirements of 330-6.3. Meet all requirements of 330-9.1.2 <br />at the roadway. <br />337-7.6 Prevention of Adhesion: To minimize adhesion to the drum during the <br />rolling operations, the Contractor may add a small amount of liquid detergent to the water <br />in the roller. <br />At intersections and in other areas where the pavement may be subjected to <br />cross-traffic before it has cooled, spray the approaches with water to wet the tires of the <br />approaching vehicles before they cross the pavement. <br />337-7.7 Transportation Requirements of Friction Course Mixtures: Cover all loads of <br />friction course mixtures with a tarpaulin. <br /> <br />-, <br />. <br /> <br />. <br /> <br />,.., <br />. <br /> <br />..., <br />. <br /> <br />.., <br />. <br /> <br />,.., <br />. <br /> <br />,.., <br /> <br />. <br /> <br />-. <br /> <br />. <br /> <br />,..., <br /> <br />09/09 <br /> <br />01000-76 <br /> <br />03-4122.F <br /> <br />- <br />