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LW The asphalt concrete shall be Type A, comprised of one-half inch (1/") maximum aggregate, and medium grading. Asphalt concrete shall be produced at an established commercial mixing plant. The amount of asphalt binder to be mixed with the aggregate shall be between 4 and 7 percent by weight of the dry aggregate. The exact amount of asphalt binder to be mixed La with the aggregate will be determined by a mix design submitted by the Contractor, to be approved by the Engineer no less than 5 days prior to paving. La The asphalt binder to be mixed with the aggregate shall be a steam-refined asphalt having a viscosity grade of AR-4000. #W. The asphalt concrete shall not be placed when the atmospheric temperature is below 50'F or during unsuitable weather. LO Asphalt concrete shall be compacted to a relative compaction of not less than 95% percent and the Contractor's compaction method shall be performed as required in the Standard Specifications. All asphalt concrete shall be spread and compacted in one layer. Areas inaccessible to a roller shall be compacted by use of a power compactor of the high impact vibra plate type capable of attaining the same compaction as the rolled areas. The completed surface shall be thoroughly compacted, smooth, and true to grade and '•' cross section, free from ruts, humps, depressions, irregularities, or segregated material. Prior to placement of asphalt concrete, a paint binder of asphaltic emulsion (SS-1 h) or +r prime coat of liquid asphalt (MC-250) shall be furnished and applied uniformly to the newly placed aggregate base and vertical surfaces that are to be in contact with the newly placed asphalt concrete. If approved by the Engineer, a paving asphalt (AR- 4000) may be substituted for the paint binder or liquid asphalt. The placement temperature and application rate of the paint binder (SS-1 h), liquid .. asphalt (MC 250), or paving asphalt (AR-4000) shall be in the accordance with the Standard Specifications. ... Care shall be taken to avoid tracking binder material onto existing pavement surfaces beyond the limits of construction by closing to public traffic the areas to which the paint binder has been applied. A certificate of compliance, signed by the vendor, shall be submitted to the Engineer to certify that the binding material complies with the requirements of the Standard �.. Specifications and these special provisions. MEASUREMENT AND PAVEMENT Full compensation for conforming to the requirements of this section, not otherwise provided for, including all the labor, materials, tools, equipment, incidentals, and for a Division III-9 4