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LR 109-2 <br /> Page 2 of 3 <br /> For HMA mixtures measured in square yards: Q, tons = A x D x (Gmb x 46.8) / 2000. For HMA <br /> mixtures measured in square meters: Q, metric tons = A x D x (Gmb x 1) / 1000. When computing <br /> adjustments for full-depth HMA pavement, separate calculations will be made for the binder and <br /> surface courses to account for their different Gmb and % ACS, <br /> For bituminous materials measured in gallons: Q, tons = V x 8.33 Ib/gal x SG /2000 <br /> For bituminous materials measured in liters: Q, metric tons = V x 1.0 kg/L x SG/ 1000 <br /> Where: A = Area of the HMA mixture, sq yd (sq m). <br /> D = Depth of the HMA mixture, in. (mm). <br /> Gmb = Average bulk specific gravity of the mixture, from the approved mix design. <br /> V = Volume of the bituminous material, gal (L). <br /> SG = Specific Gravity of bituminous material as shown on the bill of lading. <br /> Basis of Payment. Bituminous materials cost adjustments may be positive or negative but will <br /> only be made when there is a difference between the BPIF and BPIF in excess of five percent, as <br /> calculated by: <br /> Percent Difference = {(BPIF— BPlp) - BPIF} X 100 <br /> Bituminous materials cost adjustments will be calculated for each calendar month in which <br /> applicable bituminous material is placed; and will be paid or deducted when all other contract <br /> requirements for the work placed during the month are satisfied. The adjustments shall not apply <br /> ' during contract time subject to liquidated damages for completion of the entire contract. <br />