The following table is to be used in English
(Inch-Pound) projects:
Specification
Property
ASTM No.
Min.
Max.
__________
__________
_____
_____
Viscosity @ 140 degrees F, Poises
ASTM
D
2171
1600
2400
Viscosity @ 275 degrees F, CS
ASTM
D
2170
325
Pen @ 77 degrees F (100 gm 5 sec)
ASTM
D
5
80
110
Flash Point, degrees F, C.O.C.
ASTM
D
92
450
Duct @ 77 degrees F (5 cm/min) cm
ASTM
D
113
100
Duct @ 39 degrees F (5 cm/min) cm
ASTM
D
113
50
Synthetic Rubber, Wt. percent
(percent by weight rubber solids)
2.0
Toughness, Inch-Pounds
*
110
Tenacity, Inch-Pounds
*
75
Spot Test, Base Asphalt
AASHTO T 102
Neg.
(10 percent xylene)
Rolling Thin Film Circulating
Oven Test
ASTM D 2872**
Tests on Residue:
Viscosity @ 140 degrees F Poise
ASTM D 2171
8000
Toughness, Inch-Pounds
*
100
Tenacity, Inch-Pounds
*
75
Duct @ 77 degrees F (5 cm/min) cm
ASTM D 113
100
39.2 degrees F (5 cm/min) cm
ASTM D 113
25
*Benson Method of Toughness and Tenacity: Scott
Tester, newton-meter (inch-pounds) @ 25 degrees C
(77 degrees F), 500 mm (20 inches) per minute pull.
Tension head 22.2 mm (7/8 inch) diameter.
**TFOT ASTM D 1754 may be used but Rolling Thin Film
Circulating Oven shall be the referee method."
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Asphalt cement shall conform to [ASTM D 946], [ASTM D 3381] Grade [_____].
2.1.4
Additives
Additives shall not be incorporated into the mix without prior approval or
direction. The use of additives such as antistripping agents, antifoaming
agents, and silicone is subject to approval.
2.2
JOB MIX FORMULA AND RETAINED COATING
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NOTE: The procedures for determining the JMF to be
used in the mixtures are described in TM 5-825-2,
Chapter 2, and TM 5-822-8, Chapter 9. Proportioning
of the aggregates for the JMF should be carefully
determined because the gradations will be those on
which the tolerances will be applied. Application
of these tolerances may cause the gradation to be
outside the limits of the gradation in Table I, but
this is acceptable.
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SECTION 02747
Page 14
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