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40 <br />El <br />pull. "Che paver shall have a disbursing hopper, a compacting devise, and a <br />screed capable of adjustment to produce the required paving cross section. <br />The screed shall bc: equipped with heaters. <br />C. Immediately after the asphaltic concrete is spread, any deviations from the <br />typical section shall be remedied by placing additional material or by <br />removing surplus material while the mixture is still hot. <br />D. Rolling should begin as soon as possible after the asphaltic concrete has been <br />spread as specified. Rolling of the longitudinal joint should be immediately <br />behind the paving operation. The initial pass with the roller should be made <br />as soon as it is possible to roll the bituminous mixture without cracking the <br />mat or having the mix adhere to the roller wheels. <br />E. The rolling shall be done by a "Rolling Train", consisting of a steel wheel seal <br />roller, and a pneumatic tired traffic roller and a steel wheel finish roller. All of <br />which shall be on the job when the asphalt laying continences and remain on <br />the project until the paving work has been completed. <br />F. Rolling of the longitudinal joint should be immediately behind the paving <br />operation. The initial pass with the roller should be made as soon as it is <br />possible to roll the bituminous mixture without cracking the mat or having the <br />miY nrihPrr to the miler wheels. To nrevent adhesion of the mix to the roller. <br />the wheels should be kept moist with only enough water to avoid picking up <br />the material. <br />G. Steel wheeled rollers shall be of the tandem type. For seal rolling, these <br />rollers shall weigh between 5 and 12 tons and for final rolling, they shall weigh <br />i between 8 and 12 tons. <br />i <br />H. Traffic r,,,llere ghall he Of the self propelled pneumatic tired type, equipped <br />with at least seven (7) smooth tread, low pressure tires, with the tire pressure <br />maintained between 50 to 55 pounds. Traffic rollers shall weigh between 6 <br />and 10 tons. Wobble wheeled rollers are prohibited from rolling on this <br />project. <br />I. The speed should not exceed 3 mph for steel wheeled rollers or 5 mpli for <br />pneumatic tired rollers. <br />1 J. Finish rolling should be done while the material is still workable enough for <br />removal of roller marks, before the pavement temperature has dropped <br />below 1400 F. Abrupt turning of rollers on the paving mix which causes <br />undue displacement shall not be permitted. Finish rolling should be <br />accomplished by use of the steel wheel roller. <br />K. Should any irregularities or defects remain in any course after compaction, <br />they should be removed promptly and replaced with new material to provide <br />a uniform texture surface conforming to line and grade. The finished surface <br />shall be such that it :rill .^.Ct v2 -Y more than one forth melt (114") from the ten <br />foot (10') straight edge applied both parallel and perpendicular to the center <br />line of tite pavement. The thickness of the pavement shall be no more than <br />one forth inch (1/4") greater or less than the specified thickness. Correction of <br />deficiencies in pavement thickness will be in strict accordance with those <br />i . procedures described in Section 330 14.2 of the Florida D.O.T. Specifications <br />for Road and Bridge Construction, 1986 Edition. <br />02305-2