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i <br />i <br />IM <br />Bull. The paver shall have a disbursing hopper, a compacting devise, and a <br />sereed capable of ad.justinent to produce tile re <br />e quired leaving cross section. <br />The screed shall be equipped with heaters. <br />C. Immediately after (lie asphallic concrete is spread, any deviations from [he <br />typical section shall be remedied by placiiig additional material or by <br />removing surplus material while the mixture is still hot. <br />r <br />D. polling should begirt as soon as possible after the asphaltic concrete has been <br />spread as specified. [tolling of tate longitudinal joint should be immediately <br />bellind ilia )Saving operation. Tire initial Mass with the roller should be made <br />as soon as it is possible to roll the bituniinotis mixture without cracking the <br />uIat or having [tic 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 asplialt laying commences and remain oil <br />Ilse project until the paving work has been completed. <br />1'. Rolling of tie longitudinal joint should be immediately behind the paving <br />operation. The initial pass with (lie roller should be made as soon as it is <br />possible to roll the bituniillous iltixlure without cracking the mat or having the <br />prix adhere to the roller wheels. To prevent adhesion of the rnix to the roller, <br />the wheels should be kept moist Willi only enough water to avoid picking up <br />the material. <br />C. Steel wheeled rollers shall be of [Iie landem typo. For seal rolling, these <br />rollers shall weigh between 5 and 12 tons and for final rolling, they sltall weight <br />between 8 and 12 tons. <br />It. Traffic rollers shall be of the self propelled pneumatic tired type, equipped <br />With at least seven (7) smooth treats, low pressure tires, With the Etre pressure <br />maintained between 50 to 55 pounds. Traffic rollers sltall weigh between 6 <br />and 10 totes. Wobble wheeled rollers are prohibited from rolling on this <br />project. <br />1. Tile speed should not exceed 3 mph for steel wheeled rollers or 5 niph for <br />pneumatic tired rollers.. <br />J. Finish rolling should be done while (lie material is still workable enough for <br />removal of roller marks, before ilia pavement temperature has dropped <br />below 1440 F. Abrupt turning of rollers on (lie paving mix which causes <br />undue displacement shall riot 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 Field replaced with new material to provide <br />a uniform texture surface conforming to line and grade. The finished surface <br />sltall be such ilia[ it will no( vary more than one forth inch (114 ") from the ten <br />foot (10') straight edge applied both parallel and perpendicular to lh-- center <br />line of [lie pavement. The thickness of cite pavement shall be no more than <br />one forth itch (l!4")grcaler or less than the specified thickness. Correction of <br />deficiencies iii pavement thickness will be in slric( accordance with those <br />procedures described in Section 330 1.4.2 of the Florida D.O.T. Specifications <br />for Road and Bridge Construction, 1986 Edition. <br />02305-2 <br />