Screen Size
(inches)
|
General Limits
Percent Passing
|
Job Mix Percent Tolerance
| |
---|---|---|---|
1 1/2
|
100%
|
0
| |
1
|
90% to 100%
|
+/-5
| |
1/2
|
35% to 65%
|
+/-6
| |
1/4
|
10% to 35%
|
+/-4
| |
1/8
|
5% to 20%
|
+/-3*
|
Type of Mix
|
Percent of Mix
|
Job Mix Percent Tolerance
| |
---|---|---|---|
Hydrated lime
|
0.5 to 1.0
|
+/-0.2
| |
Liquifier
|
0.4 to 1.0
|
+/-0.2
| |
Asphalt cement**
|
4.0 to 5.5
|
+/-0.4
|
NOTES:
| ||
---|---|---|
*
|
The No. 20 mesh screen and subsequent screens do not apply to
the aggregates of the binder courses passing the one-eighth-inch screen.
| |
**
|
Asphalt cement shall be as specified in Subsection D(5), Composition of asphalt cement.
|
Screen Size
|
Type 1A, Hot Process General Limits Percent Passing
|
Job Mix Percent Tolerance
| |
---|---|---|---|
1 inch
|
100%
|
0
| |
1/2 inch
|
95% to 100%
|
+/-5
| |
1/4 inch
|
65% to 85%
|
+/-5
| |
1/8 inch
|
32% to 65%
|
+/-6
| |
No. 20 mesh screen
|
15% to 39%
|
+/-7
| |
No. 40 mesh screen
|
7% to 25%
|
+/-6
| |
No. 80 mesh screen
|
3% to 12%
|
+/-3
| |
No. 200 mesh screen
|
2% to 6%
|
+/-2
|
Type of Mix
|
Percent of Mix
|
Temperature
|
Job Mix Percent Tolerance
| |
---|---|---|---|---|
Asphalt cement
|
5.8 to 7.0
|
—
|
+/-0.4
| |
Penetration of asphalt cement
|
—
|
85° F. to 100° F.
|
—
| |
Placing temperature
|
—
|
225° F. to 300° F.
|
—
|
Type
|
Specification
| |
---|---|---|
Grade
|
85 to 100
| |
Water
|
0.0
| |
Homogeneous
|
Yes
| |
Pen. @ 77° F. 100 g. 5 sec.
|
85 to 100
| |
Pen. Ratio (39.2° F./77° F. x 100)
|
30.0+
| |
% Loss @ 325° max.
|
See Note A below
| |
% Pen. of Res. min.
|
60.0
| |
% Sol. in CCI4 min.
|
See Note B below
| |
Flash Point, °F. min.
|
347
| |
Duct. @ 77° F. min.
|
60
|
Note A: 1.0% limit for Pet. Asphalts; 3.0% for Fluxed Nat. Asphalt.
| |
Note B: 99.5+ Pet. Asphalts; 95.0+ Bermudez; 81.0+ Cuban; 66.0+
Trinidad.
| |
Method of tests: AASHTO
|
Pipe Diameter
(inches)
|
Gauge
| |
---|---|---|
15 to 24
|
16
| |
30
|
14
| |
36 to 48
|
12
| |
Over 48
|
10
|