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I <br /> ASPHALT PAVEMENT <br /> 1 ) DESCRIPTION , <br /> A) Under this item , the Contractor shall construct an asphalt concrete wearing surface for pavement <br /> upon a previously prepared base course conforming to the lines , grades , and typical section <br /> shown on the drawings . <br /> 2) LIMITATIONS OF LAYING OPERATION <br /> A) Bituminous materials shall be applied only when the temperature of the air in the shade is above <br /> fifty degrees Fahrenheit (50 ° F . ) . Any bituminous mixture caught in transit by a sudden rain may <br /> be laid at the Contractor's risk . However, no work shall be started if local conditions indicate that <br /> rain is imminent , and under no circumstances shall the mixture be laid while rain is falling , or <br /> when there is water on the base . When wind is blowing to such an extent that sand , dust, etc , <br /> are being deposited on the surface being paved to the extent that the bond between layers will be <br /> diminished , the bituminous materials shall not be spread on the surface . <br /> B ) The Contractor shall supply thermometers as required by the Engineer for determining the <br /> temperature all bituminous materials as they are applied . Laying of bituminous materials will not <br /> be permitted unless the material has obtained the proper temperature and temperature <br /> determination at the job site has been made . <br /> 3) TACK COAT <br /> A) Where a tack coat is required (as determined by the Engineer) prior to application of the asphaltic <br /> concrete wearing , surface or against an existing asphalt surface , an Emulsified Asphalt , Grade <br /> RS 2 shall be used . The tack coat shall be applied uniformly with a pressure distributor or by <br /> hand at the rate of 0 . 05 gallons per square yard and at a temperature between 100 ° F . and 150 <br /> F . The tack coat surface shall be kept free from traffic until the subsequent layer of asphaltic <br /> concrete has been laid . Excessive application of tack coat on the existing asphalt surfaces will be <br /> eliminated by the Contractor prior to paving the asphalt concrete . <br /> 4) ASPHALTIC CONCRETE WEARING SURFACE <br /> A) The wearing surface for the roadway shall be Florida D . O . T . asphaltic concrete conforming to the <br /> requirements of Section 331 of the 1986 Edition of the Florida D . O . T. Specifications . The surface <br /> for the roadway inside State Road 60 right-of-way shall match the exisitng pavement section of <br /> State Road 60 and also conform to the above mentioned F . D . O . T . specifications . The material <br /> shall be laid uniformly so that it will result in a compacted thickness as stated on the plans . The <br /> asphaltic concrete shall be laid down at a temperature of between 230° F and 310 ° F . The <br /> temperature of the asphalt concrete delivered to the job shall be constant and wide fluctuations of <br /> temperature during the day will not be permitted . Asphaltic concrete whose temperature - is less <br /> than 210 ° F when delivered to the job site may result m immediate rejection from application by <br /> the Engineer. All material rejected by the Engineer shall be replaced with specified material by <br /> the Contractor at no additional cost to the Owner. <br /> B) The asphaltic concrete shall be applied by an approved type of self propelled paver, such as a <br /> Barber Green , capable of making a continuous 10 ft. wide pull . The paver shall have a disbursing <br /> hopper, a compacting devise , and a screed capable of adjustment to produce the required paving <br /> cross section . The screed shall be equipped with heaters . <br /> C) Immediately after the asphaltic concrete is spread , any deviations from the typical section shall be <br /> remedied by placing additional material or by removing surplus material while the mixture is still <br /> hot . <br /> D) Rolling should begin as soon as possible after the asphaltic concrete has been spread as <br /> specified . Rolling of the longitudinal joint should be immediately behind the having operation . <br /> RP-4- 1 <br />