Gradation. The fine aggregate gradation for all HMA be FA 1, FA 2, FA 20, or FA 21. For “(c) mixture IL-9.5FG, the fine aggregate fraction shall consist of at least 67 percent manufactured sand meeting FA 20 gradation. The manufactured sand shall be stone sand, slag sand, steel slag sand, or combinations thereof.” Mixture Design. Add the following to the table in Article 1030.04(a)(1): ESAL, MIXTURE “High COMPOSITION (% PASSING) 1/ IL-9.5FG Size min max 1 1/2 in (37.5 mm) 1 in. (25 mm) 3/4 in. (19 mm) 1/2 in. (12.5 mm) 100 3/8 in. (9.5 mm) 90 100 #4 (4.75 mm) 604/ 754/ #8 (2.36 mm) 454/ 604/ #16 (1.18 mm) 25 40 #30 (600 m) 15 30 #50 (300 m) 8 15 #100 (150 m) 6 10 #200 (75 m) 4 6.5 Ratio 1.0 Dust/Asphalt Binder 4/ When used as binder placed less than 1 in. (25 mm) thick, the min and max percent passing shall each be increased 5%. Revise the table in Article 1030.04(b)(1) of the Standard Specifications to read: REQUIREMENTS “VOLUMETRIC High ESAL Voids in the Mineral Aggregate Voids Filled (VMA), with Asphalt % minimum Binder (VFA), IL-9.5 % 50 65 - 78 70 12.0 13.0 14.0 15 1/ 65 - 75 2/ 90 105 1/ The VMA for IL-9.5FG shall be a minimum of 15.0 percent. 2/ The VFA range for IL-9.5FG shall be 65 - 78 percent.”
“(c) Gradation. The fine aggregate gradation for all HMA be FA 1, FA 2, FA 20, or FA 21. For mixture IL-9.5FG, the fine aggregate fraction shall consist of at least 67 percent manufactured sand meeting FA 20 gradation. The manufactured sand shall be stone sand, slag sand, steel slag sand, or combinations thereof.” Mixture Design. Add the following to the table in Article 1030.04(a)(1): “High ESAL, MIXTURE COMPOSITION (% PASSING) 1/ Size IL-9.5FG min max 1 1/2 in (37.5 mm) 1 in. (25 mm) 3/4 in. (19 mm) 1/2 in. (12.5 mm) 100 3/8 in. (9.5 mm) 90 100 #4 (4.75 mm) 604/ 754/ #8 (2.36 mm) 454/ 604/ #16 (1.18 mm) 25 40 #30 (600 m) 15 30 #50 (300 m) 8 15 #100 (150 m) 6 10 #200 (75 m) 4 6.5 Ratio Dust/Asphalt Binder 1.0 4/ When used as binder placed less than 1 in. (25 mm) thick, the min and max percent passing shall each be increased 5%. Revise the table in Article 1030.04(b)(1) of the Standard Specifications to read: “VOLUMETRIC REQUIREMENTS High ESAL Voids in the Mineral Aggregate (VMA), % minimum Voids Filled with Asphalt Binder (VFA), % IL-9.5 50 12.0 13.0 14.0 15 1/ 65 - 78 70 65 - 75 2/ 90 105 1/ The VMA for IL-9.5FG shall be a minimum of 15.0 percent. 2/ The VFA range for IL-9.5FG shall be 65 - 78 percent.”
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