UFC 3-270-01
15 March 2001
Table 5.1. Aggregate Gradations for SBST
% Passing by Weight, Gradation Designation
Sieve Size
No. 1
No. 2
No. 3
1 in. (25.4 mm)
100
---
---
3/4 in. (19.1 mm)
90 - 100
100
---
1/2 in. (12.7 mm)
20 - 55
90 - 100
100
3/8 in. (9.5 mm)
0 - 15
40 - 70
85 - 100
No. 4 (4.8 mm)
0-5
0 - 15
10 - 30
No. 8 (2.4 mm)
---
0-5
0 - 10
No. 16 (1.2 mm)
---
---
0-5
Table 5.2. SBST Binder and Aggregate Application Rates
Bituminous Material*
Aggregate
gal/yd2 (l/m2)
lb/yd2 (kg/m2)
Gradation No.
1
0.40 - 0.50 (1.81 - 2.26)
40 - 50 (22 - 27)
2
0.30 - 0.45 (1.36 - 2.04)
25 - 30 (14 - 16)
3
0.20 - 0.35 (0.91 - 1.58)
20 - 25 (11 - 14)
* If an emulsion is used, increase the application rate by 10 percent.
26
Previous Page
