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Last modified
4/9/2018 11:38:22 AM
Creation date
3/23/2016 8:44:31 AM
Metadata
Fields
Template:
Official Documents
Official Document Type
Bid
Approved Date
07/05/2012
Control Number
2012-0000
Entity Name
Dunkelberger Engineering & Testing, Inc.
Subject
Old Dixie Highway Roadway Coring
Area
Dispute Resolution Mediation
Project Number
PSL-10-3054 (BG 10.5)
Alternate Name
Work Change Directive
Supplemental fields
FilePath
H:\Indian River\Network Files\SL00000A\S0003SR.tif
Meeting Body
Board of County Commissioners
Meeting Type
NA
SmeadsoftID
13603
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other markers or reference points required under the Contract, and the placing of <br />surveying markers or other references elsewhere shall not substitute for the required <br />laths along the existing pavement. Prior to beginning work, the Contractor shall <br />relocate all mailboxes, newspaper boxes, signs, and other appurtenances which are <br />located within such proximity to the roadway as to risk damage or to interfere with the <br />work. Before this work may begin, residents and businesses shall be notified of the <br />impending work by means of printed flyers. After all other work items are complete, the <br />removed items shall be replaced in their original locations, except that the distance <br />from the proposed edge of pavement shall be as prescribed by County requirements or <br />guidelines. <br />b. Reclaiming: The Contractor shall pulverize the existing pavement in multiple passes <br />of the reclaimer, applying sufficient mechanical effort to reduce the fragments to a <br />maximum size of 3 inches. In this process the pulverized material shall be combined <br />uniformly with the base and subgrade to a depth specified in the Contractor's Mix <br />Design. Following the reclaimer, a roller shall be applied to compact the blended <br />material sufficiently to support traffic temporarily. The County requires removal of <br />approximately 2-1/2 in of pulverized material prior to addition of the stabilizing agent. <br />When the pulverizing and mixing step is complete, the material shall be graded, <br />watered, remixed, shaped, and compacted as necessary to establish proper grade and <br />uniform thickness and to support traffic temporarily. Water shall be applied if <br />necessary to obtain uniform moisture content as required by the Contractor's Mix <br />Design. The Contractor shall apply additional water at frequent intervals as needed to <br />suppress dust, preserve the surface, and maintain the specified moisture content. The <br />stabilizing agent shall then be applied and mixed to the depth specified by the County, <br />and grading and compaction of the combined base material shall proceed immediately <br />behind the mixing of the stabilizing agent. Before final grading and the addition of the <br />emulsion, the Contractor shall adjust the cross -slope, super elevation, and profile <br />grade by adding granular base material as required to provide the required grade and <br />cross slope for the road, or removing material. <br />c. Compaction: The Contractor may employ other compaction equipment and methods <br />in addition to the vibratory roller to accomplish the final grading and to compact and <br />finish the surface. Transverse joints shall be compacted by cross rolling parallel to the <br />joint. After the material has been compacted to load-bearing strength, the Contractor <br />shall proof -roll the prepared base in the presence of the Inspector. The County may, as <br />it deems necessary, direct the Contractor to correct areas of weakness and excess <br />moisture in the base by scarifying, aerating, and reworking shore sessions to the full <br />depth of the layer. If, after an area has been reworked and recompacted, it remains <br />soft or does not attain the required density, the County may direct the Contractor to <br />remove the material and replace it with Granular Base Material meeting the <br />requirements of these specifications. <br />5. Basis of Payment <br />a. Mobilization for reclaiming: No payment for mobilization shall be due for returning <br />the equipment to the site when it has been removed and returned for the Contractor's <br />own purposes or because of breakdowns and repairs, weather delays, labor problems, <br />01025-29 Technical Specifications <br />FAPublic Works\ENGINEERING DIVISION PROJECTS\1137-Old Dixie Hwy Resurfacing IRF North Relief Canal to 71st StMmim\bid <br />documents\Contract Documents\Technical Specifications REVISED.doc <br />
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