1999-177 A - Laserfiche WebLink

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4D w L I SECTION 02305 ASPHALTPA`JEMENT 1. DESCRIPTION A. Under this item, the Contractor shall construct an asphalt concrete wearing surface for pavement upon a previously prepared base course conforming to the lines, grades, and typical section shown on the drawings. 2. LIMITATIONS OF LAYING OPE RATION A. Bituminous materials shall be applied only when the temperature of the air in the shade is above fifty degrees Fahrenheit (500 F.). Any bituminous mixture caught in transit by a sudden rain may be laid at the Contractor's risk. However, no work shall be started if local conditions indicate that rain is imminent, and under no circumstances shall the mixture be laid while rain is falling, or when there is water on the base. When wind is blowing to such an extent that sand, dust, etc. are being deposited on the surface being paved to the extent that the bond between layers will be diminished, the bituminous materials shall not be spread on the surface. n Tha (--t—t— ch.11 1.. thn.•..,.....oto«.. e,l t... .1... ..-:- - t•.-_ s.,ups., .. .a, .,..l.,aJ a5 r%q--U Vy uw L)116111GGt wl determiningV the temperature of all bituminous materials as they are applied. Lavina of bituminous materials will not he permitted unleec the materia! hac r ---------- - --- - _ - - 4 obtained the proper temperature and temperature determination at the job site has been made. i 3. TACKCOAT i_ A. Where a tack coat is required (as determined by the Engineer) pr to application of the asphaltic concrete wearing surface or against an existing asphalt surface, an Emulsified Asphalt, Grade RS 2 shall be used. The tack coat shall be applied uniformly with a pressure distributor or by hand at the rate of 0.05 gallons per square yard and at a temperature between 1000 F. and 1501 F. The tack coat surface shall be kept free from traffic until the subsequent layer of asphaltic concrete has been laid. Excessive application of tack coat on the existing asphalt surfaces will be eliminated by the Contractor prior to paving the asphalt concrete. 4. ASPHALTIC CONCRETEWCARING SURFACE A. The wearing surface for the on site parking lots and driveways shall be Florida D.O.T. Type S -I asphaltic concrete conforming to the requirements of Section 331 of the 1986 Edition of the Florida D.Q.T. Specifications. The material shall be laid uniformly so that it will result in a compacted thickness of one inch. The asphaltic concrete shall be laid down at a temperature of between 230°F and 310 OF. The temperature of the asphalt concrete ftPtlllPrall to flip i -l- JVv J i{ vv i.viiu-lll ul nlU.. l V4ll141IV11J Vl iL111tfl:l illi llG during the,day6will not lbe permitted. Asphaltic concrete whose temperature is less than 210°F when delivered to the job site may result in immediate rejection from application by the Engineer. All material rejected by the Engineer shall be replaced with specified material by the Contractor at no additional cost to the Owner. 13. The asphaltic concrete shall be applied by an approved type of self propelled paver, such as a Barber Green, capable of making a continuous 10 ft. wide 02305-1