2004-013.C - Laserfiche WebLink

Home Browse Search

SECTION 02305 ASPHALT PAVEMENT ' 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 OPERATION ' A. Bituminous materials shall be applied only when the temperature of the air in the shade is above fifty degrees Fahrenheit (50' 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 . B . The Contractor shall supply thermometers as required b the Engineer for p Y q Y In determining the temperature of all bituminous materials as they are applied . Laying ' of bituminous materials will not be permitted unless the material has obtained the proper temperature and temperature determination at the job site has been made . 3 . TACK COAT A . Where a tack coat is required (as determined by the Engineer) prior 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 100° F . and 150° 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 CONCRETE WEARING SURFACE ' A. The wearing surface for the proposed roadways and driveways shall be 1 - 1 /2 inches of Florida D . O . T . Type S - I asphaltic concrete conforming to the requirements of Section 331 of the 1991 Edition of the Florida D . O . T . Standard ' Specifications for Road and Bridge Construction. The material shall be laid uniformly so that it will result in a compacted thickness of 1 - 1 /2 inch . The asphaltic concrete shall be laid down at a temperature of between 230°F and 310 OF . The temperature of the asphalt concrete delivered to the job shall be ' EAPSW\P\99-91e\TechsSpecs\techspec-02305 . doc 02305- 1