410001 -* “design method” Asphalt Base Course, Type “mix type” Square Yard

100.00 and Greater 0

75.00 to 99.99 = [{1,000*(PSI - 75.00)} – 25,000]

Less than 75.00 – 25,000

410.13.8 Lot Payment Calculations: The pay factors that are calculated with in the

specification are to be applied in the following way:

410.13.8 1 -PWL Factors: The calculated total PWL for a given lot is applied to the

bid unit price for the asphalt mixture in the lot. Once the unit pr ice has been adjusted the quantities can be calculated to arrive at the payment for the lot.

410.13.8 2 -Thickness Adjustment: There is no adjustment for thickness greater than

the thickness that is specified in the plans. If there is a Price Adjustment (Section 410.13.5) for thickness this factor (percentage) is applied to the contract bid unit price times the quantity in the lot to arrive at a dollar amount penalty. This penalty is applied to the overall payment for the lot.

410.13.8 3 -Joint Density Adjustment: If it is determined in Section 410.13.4 of this

specification that a Joint Density Adjustment is warranted the dollar amount determined in the formulas of Section 410.13.4 or Table 410.13.7.3 shall be applied to the overall payment for the lot.

410.13.8 4 -Bond Strength Adjustment: If it is determined that a Bond Strength

Adjustment is warranted the formulas in Section 410.13.6 or Table 410.13.7.4 shall be used to calculate the adjustment. This adjustment shall be a pplied to the overall payment for the lot.

410.14 Pay Items :

ITEM DESCRIPTION UNIT 410001 -* “design method” Asphalt Base Course, Type “mix type” Square Yard 410002 -* “design method” Asphalt Wear Course, Type “mix type” Square Yard 410007 -* “design method” Asphalt Skid Pavement, Type “mix type” Square Yard * Sequence number “design method” shall be either Marshall or Superpave “mix type” from Table 401.4.2A or 401.4.2B SECTION 411 THROUGH SECTION 414-BLANK 218 SECTION 415 MILLING OF ASPHALT PAVEMENT SURFACES 415.1 -DESCRIPTION : This item shall govern for the milling of existing and/or new asphalt pavement at locations shown on the plans or as directed by the engineer in accordance with the requirements herein and MP 401 .07.24. The work shall provide a skid resistant surface that meets smoothness requirements and provides a constant cross slope, or be used as surface preparation prior to placement of a final surface course. 415.1.1 -Standard Milling: Item 415005 -* sha ll be used as the default milling of asphalt pavements. It should be used when the Division plans to remove existing asphalt pavement in preparation for an asphalt overlay or other process. This method of removal is most common and possesses a minor level of profile and slope control, or as otherwise shown in the plans. 415.1.2 -Fine Milling: Item 415006 -* shall be used when the Division intends to overlay the milled surface with a thin lift asphalt course, or as otherwise shown in the plans. This remo val method shall be considered a detailed surface preparation, therefore requiring a high level of profile and slope control, or as otherwise shown in the plans. 415.1. 3-Micromilling: Item 415007 -* shall be used for in an effort to recover skid resistan ce on existing pavement or smoothness correction, bump and/or grade corrections on existing or newly paved surfaces where called for in the plans. This removal method shall be considered specialized and is not intended to be used when standard overlays ar e to be used. 415.2 -CONSTRUCTION : 415.2.1 -General: The plans will designate the area of pavement surfaces to be milled. Milling of roadway shoulders will not be required unless indicated on the plans or required to provide drainage. 415.2.2 -Equipment: The equipment for removing the existing pavement shall be a power operated planing machine or grinder. The equipment shall be capable of accurately establishing profile grades along each edge of the machine within plus or minus 1/4 inch by referencing from the existing pavement and able to maintain acc urate depth of cut and cross - slope. The machine shall have a control system providing for uniformly varying the depth of cut while the machine is in motion to prevent cutting of or damage to drainage works, manholes or other appurtenances within the paved area. At the end of each working day, all equipment shall be removed to a location where it does not present a hazard to traffic, the pavement shall be cleaned by sweeping or flushing. 415.2.3 -Milling Residue: The Contractor shall establish a positive and immediate means for removal of milling residue. The machine shall have adequate loading equipment to remove solid residue from the surface and discharge them into a truck or as directed. Residue shall not be permitted to flow across lanes us ed by the traveling public or into gutters or drainage facilities.