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<br /> <br />THE CITY OF SUNNY ISLES BEACH <br />PROJECT NO. 21-1011 <br />BUILDING DEPARTMENT RELOCATION TO ANNEX <br /> <br />Project No. 21-1011 November 2024 022320 -2 <br />PART 2 - PRODUCTS <br />2.1 LIMEROCK BASE: The CONTRACTOR shall provide new limerock conforming to FDOT Standard <br />Specifications for Road and Bridge Construction SECTION 911. The minimum acceptable density <br />of limerock shall be 120 lbs./cu. ft. <br />PART 3 - EXECUTION <br />3.1 BASE PREPARATION: The CONTRACTOR shall prepare the existing base by scarifying and disking <br />to a depth of not less than 6 inches for the full width of the proposed base. The base shall be <br />loosened to such an extent that no pieces larger than 2-1/2 inches in the greatest dimension remain <br />bonded together. All unsuitable base materials such as organic matter, muck, roots, brush, or other <br />material that will not compact into a suitable and enduring roadbed shall be removed and disposed <br />off-site. <br />3.2 REMOVAL OF ASPHALTIC SURFACES: The CONTRACTOR shall remove all asphaltic concrete <br />surfaces prior to scarifying of the existing rock base. All such materials shall be disposed of off- <br />site in areas provided by the CONTRACTOR, unless other disposal is shown on the plans. <br />3.3 SPREADING AND SHAPING: The CONTRACTOR shall spread existing base materials to the full <br />width of the proposed new base course and to a grade and cross section roughly parallel to the <br />finished grade. Limerock shall be added as necessary to bring the proposed base to the grades <br />required on the Drawings, but spreading layer thickness shall not exceed 4 inches. <br />3.4 COMPACTING AND FINISHING BASE: The CONTRACTOR shall compact by rolling with either the <br />grid-type roller or the sheepsfoot roller, properly weighted, after the spreading and mixing <br />operations are complete. The material being compacted shall be maintained within plus or minus <br />2 percent of its optimum moisture content during compaction. Final rolling shall be accomplished <br />with traffic rollers. The base shall be compacted to not less than 98 percent of the maximum <br />density as determined by ASTM D1557-00, and in accordance with FDOT Standard Specifications <br />for Road and Bridge Construction Section 240-5, and shall be applied in lifts not to exceed 4 inches <br />thick. <br />3.5 PRIMING AND MAINTAINING: The CONTRACTOR shall apply prime coat only when the base meets <br />the specified density requirements and the moisture content in the top half of the base does not <br />exceed 90 percent of the optimum moisture of the base material. At the time of priming, the base <br />shall be firm, unyielding and in such condition that no undue distortion will occur. The <br />CONTRACTOR shall be responsible for assuring that the true crown and template are maintained, <br />with no rutting or other distortion, and that the base meets all the requirements at the time the <br />surface course is applied. <br /> <br />END OF SECTION <br />