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of mixing and the rate and depth of emulsion treatment. The Reclaimed Asphalt Base Course shall have a minimum Structural Number (SN) of 1.8 for the total thickness of the finished/completed base course. The Contractor shall be responsible for preparing Mix Designs for the Reclaimed Asphalt Base Course prior to the start of construction. The Contractor will also be required to test the completed base course and provide test results that verify that the completed base course meets the specified Structural Number. All Mix Design testing/preparation and testing for verification of the Structural Number shall be performed by an independent testing laboratory and all costs associated with the Mix Design preparation and SN verification testing shall be the responsibility of the Contractor. The assumed Project Mix Design is based on a mixture of 9" of reclaimed asphalt and limerock or cemented coquina base and 2.75 gallons/SY of CSS -1 H Emulsified Asphalt. The target Mix Design shall have a minimum Asphalt Structural Number (SN) of 0.20 per inch. The Mixture used in the work shall be as determined by the project specific Mix Design Testing. The Testing Laboratory preparing the Reclaimed Asphalt Base Course Mix Designs and SN verification testing shall be an accredited laboratory that is regularly engaged in asphalt testing including the preparation of Mix Designs for Cold Recycled Bituminous Base Course or Reclaimed Asphalt Base Course, and testing to establish and verify Structural Number for asphalt base course layers. The Contractor shall provide information for proposed testing laboratories and mix designs shall be subject to the approval of the County. The Mix Design study and recommendations shall be forwarded to the County at least five work days prior to starting operation. d. Granular Base Material: Granular base material to be added to the reclaimed layers shall consist of limerock meeting the requirements for Limerock Stabilized Base of the FDOT Specifications, Section 911. Further, it shall have a minimum LBR value of 100. 3. Equipment a. General: The Contractor shall accomplish the work utilizing a road reclaimer, a motor grader, a vibratory roller or three -wheeled roller, a water truck with spray bar and such additional equipment as may be necessary to the operation. The required equipment shall be subject to the County's approval, and the County may, at any time during the work, disapprove the use of a particular machine for unsafe, erratic, or inadequate performance. Utilization of a proper road reclaimer and compaction equipment as specified herein is essential to this work, and substitution of other equipment or a different technique shall not be acceptable. b. Reclaimer: The work shall be performed utilizing a road reclaimer machine originally designed for pavement reclaiming. The road reclaimer shall be a CAT 350, larger or a comparable model of equal or greater horsepower and rotor size, produced by another manufacturer. The reclaimer shall be capable of pulverizing and mixing pavement, base materials, and subgrade soil to depth of 16 inches. It shall be capable of injecting asphalt emulsion into the rotor chamber at an accurately controlled rate and of doing so in confined areas inaccessible to a tanker truck. c. Compacting Equipment: The Contractor shall compact the reclaimed base material with a vibratory roller weighing not less than 13,000 lbs. or by a three wheeled roller weighing not Tess than 11 tons. The vibrator must be fully operable at maximum amplitude throughout the compacting process. 01025-18 Technical Specifications F:\Public Works\ENGINEERING DIVISION PROJECTS\1362-01d Dixie Hwy_Highland Dr\1-Admin\Bid Documents\Master Contract Documents\Technical Specifications.doc