|
CALCULATORS
Calculation of Tonnage Values - Asphalt or Aggregate Base Materials
Current Usage Method A
12.5 pounds per square foot at one (1) inch thick, which covers 160 SF per ton of material. This value is equivalent to 150 pounds
per cubic foot of material.
Example:
100,000 SF of area x 2.5 inch section divided by the coverage of 160 SF per SF/ inch is:
(100,000 x 2.5)/160= 250,000= 1,562.5 tons
NOTE: THE ABOVE TONNAGES INCLUDE VARIOUS VARIABLES,
COMPACTION AND SUBSIDENCE FACTORS.
Ratio of Run To Rise
Rise/Drop % of -- Degree of
| Run |
incline |
decline |
Angle |
| 0.5: |
1 |
200.00% |
63.43 |
| 0.75: |
1 |
133.00% |
53.13 |
| 1.00: |
1 |
100.00% |
45.00 |
| 1.25: |
1 |
80.00% |
38.66 |
| 1.50: |
1 |
66.67% |
33.69 |
| 1.75: |
1 |
57.14% |
29.74 |
| 2.00: |
1 |
50.00% |
26.56 |
| 2.25: |
1 |
42.86% |
23.20 |
| 2.50: |
1 |
40.00% |
21.80 |
| 2.75: |
1 |
36.36% |
19.98 |
| 3.00: |
1 |
33.33% |
18.43 |
| 3.25: |
1 |
30.77% |
17.10 |
| 3.50: |
1 |
28.57% |
15.95 |
| 3.75: |
1 |
26.67% |
14.93 |
| 4.00: |
1 |
25.00% |
14.04 |
| 5.00: |
1 |
20.00% |
11.31 |
| 6.00: |
1 |
16.67% |
9.46 |
| 7.00: |
1 |
14.28% |
8.13 |
| 8.00: |
1 |
12.50% |
7.13 |
| 9.00: |
1 |
11.11% |
6.34 |
| 10.00: |
1 |
10.00% |
5.71 |
| 11.00: |
1 |
9.09% |
5.19 |
| 12.00: |
1 |
8.33% |
4.76 |
| 15.00: |
1 |
6.67% |
3.81 |
| 20.00: |
1 |
5.00% |
2.86 |
| 25.00: |
1 |
4.00% |
2.29 |
|
