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CI <br />11 <br />SECTICIN 2H - LIMELZOCK BASE COURSE <br />1. DESCRIPTION <br />04 <br />5 <br />A. Under this item, the Contractor shall construct a Limerock base course <br />upon the completed stabilized subgrade. The base course shall be <br />constructed its accordance with the lines and grades and typical section <br />as shown on the drawings. <br />MATERIALS <br />A. The Contractor may use limerock for the base course from either the Ocala <br />Formation or the Miami Oolite Formation at his option, provided it <br />meets the Specifications contained herein and complies with Section 911 <br />"Limerock Material for Base and Stabilized Ease" of the 1991 Edition of <br />Florida D.O.T."s Standard Specifications for Road and Bridge <br />Construction. Only one of the two grades of limerock shall be used on <br />the project. <br />B. The material shall be crushed or broken up to such size, before being <br />placed on the road, that not less than 97 percent will pass a 3 112 inch <br />sieve and it shall be graded uniformly down to dust. All Pane material <br />shall consist entirely of dust of fracture. <br />PLACEMENT OF 1v1ATERIAL <br />A. After the sub -rade is completed and approved, the Con tractor shall <br />furnish and spread the limerock in a uniform distribution. Segregated areas <br />of fine or course rock will not be permitted. Such areas shall be removed <br />and replaced with properly graded rock. <br />B. After the spreading is completed, the entire surface shall be scarified <br />and shaped so as to produce the required grade and cross section atter <br />compaction.. <br />MOISTURE CONTENT <br />A. When the limerock does not have the proper moisture content to obtain the <br />required density, wetting or drying will be required. When water is <br />added, it shall be mixed in uniformly. Wetting or drying operations <br />shall involve manipulation of the entire width and depth of the base <br />course before compaction. <br />COMPACTION <br />A. The required compaction of the limerock base course shall be a minimum <br />of 98 percent of the maximum dry density. <br />B. No less than 8-10 LOU steel drum or pneumatic tired roller shall be used <br />to compact the limerock base course. All depressions shall be filled and <br />the process of rolling and falling shall continue until a thoroubhly <br />compacted uniform surface is produced. During final compaction <br />operations, if blading of any area is necessary to obtain the true grade <br />and cross section, the compaction operations for such areas shall be <br />?11•t <br />