TABLE 1. 1990 MIX DESIGN

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Basalt Aggregate  Flagstaff I-40  
     Asphalt  Asphalt
   Base Mix  Rubber  Rubber
   HMA  Gap  Open
   AC-20  Graded  Graded
 Sieve  % Pass  % Pass  % Pass
 1" 100 100 100
 3/4" 95 100 100
 1/2" 78 100 100
 3/8" 66 89   100
1/4" 55 57 67
 #4 50 45 38
 #8 40 27 0
 #10 39 23 9
 #16 33 15 6
 #30 24  10 
 #40 18 
 #50 10 
 #100
 #200 4.1   3.5  2.6 
 % Asphalt 4.6  6.6 
 % Lime 1.50
 Bulk Density 150.4   151.6   133.9 
 VMA % 14.5  18.1  23.5 
 Effective Air Voids % 5.4  4.9  15.9 
 Maximum Theo. Density 159  159.4  159.2 
 Marshall Stability (Lb) 4879  2331   
 Flow 12  18   
 Agg. Combined Sp. Grav. 2.073   2.784  2.717 
 Agg. Water Abs. % 1.517   1.72   1.77 
 Agg. Asphalt Abs. % 0.79  1.00  1.00 
 Sand Equivalent 65  95  83 
 Crushed Faces % 92  91  88 
 Immersion Comp. Wet Strength 542     
 % Retained Wet Strength 86