EVALUATING BMD CONVENTIONAL AND HIGH RAP SURFACE MIXTURES Mixture 30_C (a) Mixture 45_HR_RA (d) Mixture 45_HR_L (e) (f) Mixture 60_HR_L_RA_C1 (g) Mixture 60_HR_L_RA_C2 (b) Mixture 30_O (c) Mixture 45_HR Figure 5. Cracking Cells After Testing with Cracks Marked: (a) 30_C; (b) 30_O; (c) 45_HR; (d) 45_HR_RA; (e) 45_HR_L; (f) 60_HR_L_RA_C1; (g) 60_HR_L_RA_C2. C = control; O = optimized; HR = high reclaimed asphalt pavement (RAP); RA = recycling agent; L = softer virgin binder; C1 and C2 = cracking cell IDs Figure 4. (a) Number of Passes Corresponding to Observation of Initial Surface Cracking per Cracking Test Cell; (b) Total Surface Crack Length Per Cracking Cell. C = control; O = optimized; HR = high reclaimed asphalt pavement (RAP); RA = recycling agent; L = softer virgin binder; C1 and C2 = cracking cell IDs Number of Passes Until Observed Cracking 30_C 30_O 45_HR 45_HR_RA 45_HR_L 60_HR_RA_L_C1 60_HR_RA_L_C2 400,000 350,000 300,000 250,000 200,000 150,000 100,000 50,000 0 (a) Total Crack Length (mm) 30_C 30_O 45_HR 45_HR_RA 45_HR_L 60_HR_RA_L_C1 60_HR_RA_L_C2 60,000 50,000 40,000 30,000 20,000 10,000 0 (b) 12 SPRING/SUMMER 2024
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