1. According to Table 1 and Table 9.10, determine the design binder content for a Superpave mix design for a 15 million

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1 According To Table 1 And Table 9 10 Determine The Design Binder Content For A Superpave Mix Design For A 15 Million 1 (134.53 KiB) Viewed 33 times

1. According to Table 1 and Table 9.10, determine the design binder content for a Superpave mix design for a 15 million ESAL Traffic. Assume a 12.5 mm nominal maximum aggregate size. Show how your design parameters were determined using the attached blank design charts. Table 1 HMA mixture date for design binder content Binder Content (%) Data 5.5 6.0 6.5 7.0 Gmb Gom 2.455 2.538 1.025 Gb P. P Gab 2.351 2.579 1.025 94.5 4.5 2.705 129 112 2.441 2.558 1.025 94.0 4.5 2.705 131 113 93.5 2.469 2.518 1.025 93.0 4.5 2.705 128 115 4.5 hini 2.705 131 116 ha 4% TABLE 9.10 Superpave Mix Design Criteria Design Air Voids Dust-to-Effective Asphalt Tensile strength ratio Nominal Maximum Size (mm) 0.6-1.2 80% min 37.5 25 19 12.5 9.5 4.75 Minimum VMA (%) 11 12 13 14 15 16 Gumm and VFA Requirements Percent Maximum Theoretical Specific Gravity Design EASL in millions Ninit NO Nmax <0.3 0.3-3 3-10 10-30 230 591.5 90.5 89.0 $89.0 89.0 96 96 96 96 96 598.0 98,0 98.0 S98.0 $98.0 Percent Voids Filled with Asphalt2.34 70-80 65-78 65-75 65-75 65-75 Notes 1. Dust-to-binder ratio range is 0.9 to 2.0 for 4.75 mm mixes. 2. For 9.5 mm nominal maximum aggregate size mixes and design ESAL 3 million, VFA range is 73 to 76% and for 4.75 mm mixes the range is 75 to 78% 3. For 25 mm nominal maximum aggregate size mixes, the lower limit of the VFA range shall be 67% for design traffic levels <0.3 million ESALS, 4. For 37.5 mm nominal maximum aggregate size mixes, the lower limit of the VFA range shall be 64% for all design traffic levels.