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2014-129A
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2014-129A
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Last modified
3/13/2017 2:54:08 PM
Creation date
1/10/2017 1:51:40 PM
Metadata
Fields
Template:
Official Documents
Official Document Type
Contract
Approved Date
09/16/2014
Control Number
2014-129A
Agenda Item Number
8.E.
Entity Name
Timothy Rose
Subject
Contract and Specifications
Old Dixie Highway Resurfacing
Area
I.R.F.W.C.D. North Relief Canal to 71st. ST.
Project Number
1137
Bid Number
2014044
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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 />01025-30 Technical Specifications <br />F:\Public Works\ENGINEERING DIVISION PROJECTS\1137-OId Dixie Hwy Resurfacing IRF North Relief Canal to 71st <br />StWdmim Addendums\Technical Specifications ADDENDUM 1 07-31-2014.doc <br />
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