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be removed and replaced with suitable material and the whole subgrade brought <br /> to line and grade and to a foundation of uniform compaction and supporting <br /> power. The cost of removing and replacing unsuitable material shall be included <br /> in the bid for the paving. <br /> B. The top 12 inches of the subgrade, in both cut and fill sections, shall be <br /> compacted to a density of not less than 98 percent of the maximum density as <br /> determined by the AASHTO Method T-180. If shown on the Drawings, compact <br /> subgrade to a Florida Bearing Value of 75 psi. Unless the subgrade material at <br /> the time of compacting contains sufficient moisture to permit proper compaction it <br /> shall be moistened as necessary and then compacted. Subgrade material <br /> containing excess moisture shall be permitted to dry to the proper consistency <br /> before being compacted. The subgrade shall be shaped prior to making the <br /> density tests. The required density shall be maintained until the base or <br /> pavement has been laid or until the aggregate materials for the base or <br /> pavement course have been spread in place. <br /> C. The minimum compacted thickness of the limerock base shall be 12 inches <br /> applied in three layers of equal depth unless otherwise shown on the Drawings. <br /> The width of the limerock base shall be 3 feet wider than the pavement, 1-1/2 ft. <br /> on each side. <br /> D. Before the prime coat is applied, all loose material, dust, dirt or other foreign <br /> material which might prevent bond with existing surface shall be.moved to the <br /> shoulders to the full width of the base by means of revolving brooms, mechanical <br /> sweepers, blowers, supplemented by hand sweeping or other approved <br /> methods. The glazed finish shall have been removed from the base. The prime <br /> coat shall be applied by a pressure distributor so that approximately 0.1 gallons <br /> per square yard is applied uniformly and thoroughly to a clean surface. <br /> E. Prior to the application of the surface course, all loose material, dust, dirt and all <br /> foreign material which might prevent proper bond with the existing surface shall <br /> be removed to the full width of the repair by means of approved mechanical <br /> sweepers and supplemented by hand sweeping if required. <br /> F. Apply bituminous tack coat at a rate between 0.08 and 0.10 gallons per square <br /> yard. Bituminous material shall be heated as per manufacturers <br /> recommendations. <br /> G. All manhole castings, valve boxes or other utility castings within the area to be <br /> surfaced shall be adjusted to the proposed surface elevation by the Contractor. <br /> The work shall be accomplished in such a manner as to leave the casting fixed <br /> permanently in its correct position. <br /> 3.02 PAVEMENT REPAIR <br /> A. All damage to pavement as a result of the work (construction or maintenance) <br /> under this contract shall be repaired according to the plans and specifications at <br /> the Contractor's cost. Pavement shall be repaired to match the original surface <br /> material and original grade, however, the asphalt concrete thickness shall not be <br /> less than 1 inch. The repair shall include the preparation of the subgrade, the <br /> 08/12 02513-2 11-4179 <br /> • <br />