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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 |
4 |
| #40 |
18 |
9 |
4 |
| #50 |
10 |
7 |
3 |
| #100 |
6 |
5 |
3 |
| #200 |
4.1 |
3.5 |
2.6 |
| % Asphalt |
4.6 |
6.6 |
9 |
| % Lime |
1.50 |
1 |
1 |
| 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 |
|
|
|