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' PORT OF EVERETT CIP NO. 3-0-003-09 <br />W MARINE VIEW DR PROJECTNO. <br />i IMPROVEMENTS PD-WM-20006-01 <br />Special Provisions, the nominal compacted depth of any layer of any course shall not exceed the <br />following depths: <br />HMA Class E 0.35 feet <br />HMA Class A and B 0.35 feet <br />when used for Base Course <br />HMA Class A, B, and F 0.25 feet <br />HMA Class G 0.10 feet <br />HMA Class D 0.08 feet <br />On areas where irregularities or unavoidabie obstacles make the use of inechanical spreading <br />and finishing equipment impractical, the paving may be done with other equipment or by hand. <br />When more than one JMF is being utilized to produce HMA, the material produced for each JMF, <br />shall be placed by separate spreading and compacting equipment. <br />5•04.3(10) Compaction <br />5-04.3(10)A General <br />immediately after the HMA mixture has been spread, struck off, and suriace irtegularities <br />adjusted, it shall be thoroughly and unifortnly compacted. The completed course shall be free <br />from ridges, ruts, humps, depressions, objectionable marks, or irregularities and in coniormance <br />with lhe line, grade, and cross-section shown in the Plans or as established by the Engineer. If <br />necessary, the mix design may be altered to achieve desired results. <br />Compaction shall take place when the HMA is in the proper condition so that no undue <br />displacement, cracking, or shoving occurs. All compaction units shali be operated at the speed, <br />within specificalion limits, that will produce the required compaction. Areas inaccessibie to large <br />compaction equipment shall be compacted by mechanical or hand tampers. Any HMA that <br />becomes loose, broken, contaminated, shows an excess or deficiency of asphalt binder, or is in <br />any way defective, shall be removed and replaced at no additional cost with fresh HMA which <br />shall be immediately compacted to confortn with the surrounding area. <br />� The type of rollers to be used and their relative position in the compaction sequence shall <br />generally be the Contractors option, provided specification densities are attained. An exception <br />shall be that the pneumatic tired roller shall be used between October 1 and April 1. Coverage's <br />� with a vibratory or steel wheel roller may precede pneumatic tired rolling. When HMA Class D is <br />being constructed, the use of pneumatic rollers will not be required. <br />Vibratory rollers shall not be operated in the vibratory mode when the intemal temperature of the <br />HMA is less than 175°F without pertnission of the Engineer. In no case shall a vibratory roller be <br />operated in a vibratory mode when checking or cracking of the mat occurs at a greater <br />temperature. Vibratory rollers in the vibratory mode are also prohibited on bridge decks. <br />5•04.3(10)B Control <br />HMA Classes A, B, E, and F used in traffic lanes, including lanes for ramps, truck climbing, <br />weaving, and speed change, and having a specified compacled course thickness greater than <br />0.10 foot, shall be compacted lo a specified level of relative density. The specified level of <br />relative density shali be a Composite Pay Factor (CPF) of not Iess than .75 when evaluated in <br />Page 21 af 50 <br />