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I u above may be used if approved by the Engineer for use in friction courses.) Crushed limestone from the Oolitic formation may be used if it contains a minimum of 12% non - carbonate material as determined by FM 5 -510 and the Engineer grants approval of the source prior to its use. As an exception, mixes that contain a minimum of 60% crushed granite may contain up to 40% fine aggregate from other approved sources. 337 - 3.2.2.2: Asphalt Binder: Use an ARB -5 asphalt rubber binder. If called for in the Contract, use a PG 76 -22 asphalt binder. 337 -3.3 Grading Requirements: 337 -3.3.1 FC -5: Use a mixture having a gradation at design within the ranges shown in Table 337-1. Table 337 -1 FC -5 Gradation Design Range 3/4 inch 1/2 inch3 /8 inch No. 4No. 8 No. 16 No. 30 No. 50 No. 100No. 200 [19.0 [12.50 [9.50 [4.75 [2.36 [1.18 [600 :m] [300 :m] [150 :m] [75 :m] mm] mm] mm] mm] mm] mm] 100 85 -100 55 -75 15 -25 5 -10 -- -- -- -- 2 -4 337 -3.3.2 FC -9.5: Meet the design gradation Superpave fine mix as defined in 334 - 3.2.2. 337 -3.3.3 FC -12.5: Meet the design gradation Superpave fine mix as defined in 334 - 3.2.2. requirements for a SP -9.5 requirements for a SP -12.5 337 -4 Mix Design. 337 -4.1 FC -5: The Department will design the FC -5 mixtures. Furnish the materials and all appropriate information (source, gradation, etc.) as specified in 334 - 3.2.7. The Department will have two weeks to design the mix. The Department will establish the design binder content for FC -5 within the following ranges based on aggregate type: Aggregate Type Binder Content Crushed Granite 5.5- 7.0 Crushed Limestone (Oolitic) 6.5- 8.0 337 -4.2 FC -9.5 and FC -12.5: Provide a mix design conforming to the requirements of 334 -3.2 for Traffic Level C unless otherwise designated in the plans. Develop the mix design using an ARB -5 or PG 76 -22 asphalt binder if called for in the Contract Documents. 337 -4.3 Revision of Mix Design: For FC -5, FC -9.5 and FC -12.5, meet the requirements of 334 -3.3. For FC -5, all revisions must fall within the gradation limits iVl�l defined in Table 337-1. ni 337 -5 Contractor's Process Control. Provide the necessary process control of the friction course mix and construction in accordance with the applicable provisions of 330 -2 and 334 -4 for FC -5, and 330 -2 and 334 -4 for FC -9.5 and FC -12.5. The Engineer will monitor the spread rate periodically to ensure uniform thickness. Provide quality control procedures for daily monitoring and control of spread rate variability. If the spread rate varies by more than 5% of the spread rate set by the Engineer March 2007 01000 -74 03- 4122.D <.'