702
ASPHALT MATERIAL
702.00
Application Temperatures
702.01 Asphalt Binders
702.02 Cut-Back Asphalt
702.03 Cut-Back Asphalt Emulsions
702.04 Emulsified Asphalts
702.05 Asphalt Primer for Waterproofing
702.06 Asphalt for Waterproofing
702.07 Asphalt Emulsion MWS
702.13 Rubberized Asphalt Emulsion
702.14 Rubber Compound
Acceptance. Asphalt binders conforming to 702.01 and liquid asphalts 702.02, 702.03, and 702.04 may be acceptable for shipment to and immediate use in construction projects. The Contractor has the option of using the manufacturer’s certification, when requested by an asphalt manufacturer and agreed to by both the requesting asphalt manufacturer and the Department. The procedure for this type of acceptance is set forth in Supplement 1032 on file in the office of the Director.
702.00
Application Temperatures. Apply
asphalt materials, according to the temperature ranges specified in Table 702.00-1.
|
Type
and Grade |
Application
Temperature Range °F
(°C) |
|
|
Spray |
Mix |
|
|
RC-70 |
75
to 150 (24 to 66) |
--- |
|
RC-250 |
100
to 175 (38 to 79) |
80
to 150 (27 to 66) |
|
RC-800 |
66
to 107 (150 to 225) |
66
to 93 (150 to 200) |
|
RC-3000 |
200
to 275 (93 to 135) |
175
to 225 (79 to 107) |
|
MC-30 |
50
to 120 (10 to 49) |
--- |
|
MC-70 |
75
to 150 (24 to 66) |
--- |
|
MC-250 |
100
to 225 (38 to 107) |
100
to 225 (38 to 107) |
|
MC-800 |
150
to 250 (66 to 121) |
150
to 225 (66 to 107) |
|
MC-3000 |
225
to 275 (107 to 135) |
200
to 250 (93 to 121) |
|
All
Emulsions |
50
to 160 (10 to 71) |
50
to 140 (10 to 60) |
|
Asphalt
Primer for Waterproofing |
50
to 80 (10 to 27) |
--- |
|
Asphalt
for Waterproofing |
300
to 350 (149 to 177) |
--- |
|
CBAE
350, CBAE 350 Special |
100
to 150 (38 to 66) |
100
to 150 (38 to 66) |
|
CBAE
800, CBAE 800 Special |
125
to 175 (52 to 79) |
125
to 175 (52 to 79) |
|
Primer
20 |
60
to 120 (16 to 49) |
--- |
|
Primer
100 |
75
to 125 (24 to 52) |
--- |
|
Asphalt
Binders |
350
(177) Max. |
325
(163) Max. |
|
Asphalt
Binders-Polymer modified with SB, SBR, or SBS |
--- |
350
(170) Max. |
702.01
Asphalt Binders. Provide
asphalt binders conforming to Supplemental Specification
908.
702.02
Cut-Back Asphalt.
Provide rapid curing cut-back
asphalt conforming to AASHTO M 81 and medium curing cut-back asphalt conforming
to AASHTO M 82. Instead of
viscosity on the residue, the penetration in note 3 (AASHTO M 81) or note 4
(AASHTO M 82) shall govern.
702.03 Cut-Back Asphalt Emulsions. Prepare emulsions by compounding a suitable volatile solvent and water with 702.01 asphalt to produce emulsions conforming to Table 702.03-1.
|
|
CBAE- |
CBAE- |
CBAE- |
CBAE- |
Primer |
Primer |
|
Kinematic
Viscosity at 60 °C,
Centistokes |
350-700 |
350-700 |
800-1600 |
800-1600 |
20-40 |
100-200 |
|
Water
Content[1], % |
4-12 |
4-12 |
4-12 |
4-12 |
3-8 |
3-8 |
|
Volatile
Solvent[1], % |
12-25 |
12-25 |
10-20 |
10-20 |
|
|
|
Asphalt
Content[1], % |
67+ |
67+ |
72+ |
72- |
45+ |
60- |
|
Adhesion
Test[1] |
[2] |
[2] |
[2] |
[2] |
|
|
|
Wet
Stone Coating Test[1] |
|
[2] |
|
[2] |
[2] |
[2] |
|
Stripping
Test[1] |
|
[2] |
|
[2] |
|
|
|
|
Tests
on Residue From Distillation |
|||||
|
Penetration
at 25 °C |
80-150 |
80-150 |
80-150 |
80-150 |
100-200 |
100-200 |
|
Ductility
at 25 °C,
in cm |
100+ |
100+ |
100+ |
100+ |
100+ |
100+ |
|
Total
Binder (Sol. in CSx), % |
99+ |
99+ |
99+ |
99+ |
99+ |
99+ |
|
[1]
Perform tests according to Supplement
1014. |
||||||
|
[2]
Shall meet. |
||||||
702.04 Emulsified Asphalts. Provide emulsified asphalts conforming to AASHTO M 140 or AASHTO M 208.
702.05 Asphalt Primer for Waterproofing. Provide asphalt primer for waterproofing conforming to ASTM D 41.
702.06 Asphalt for Waterproofing. Provide asphalt for waterproofing conforming to ASTM D 312, Type III.
702.07 Asphalt Emulsion MWS. Prepare asphalt emulsion MWS from a base material conforming to 702.01, except vary the penetration to meet the float test and penetration specified below. Ensure that the emulsion coats the aggregate readily, thoroughly, and uniformly. Ensure that the specified characteristics do not change during transportation or normal storage and that the emulsion conforms to the following when tested according to AASHTO T 59:
|
Saybolt furol viscosity at 77 °F (25 °C), seconds |
50+ [1] |
||
|
Asphalt residue, percent |
68+ |
||
|
Settlement, 7 days, percent |
5- |
||
|
Sieve test |
0.1- |
||
|
Coating test |
[2] |
||
|
Oil distillate, percent |
7- |
||
|
Withstand freezing to |
-10 ºF (-23 °C) [3] |
||
|
Particle charge |
Negative |
||
|
Penetration, 77 °F (25 °C) [6] |
[4] |
||
|
Float test at 140 °F (60 °C), seconds [6] |
1200+ [5] |
||
|
Total bitumen soluble CS2 [6] |
97.5+ |
||
|
Ash content, percent [6] |
2.0- |
||
|
[1] Pumpable. |
|||
| [2] Use aggregates to test the emulsion that are from sources standardized by the Laboratory. Aggregates shall consist of 100 percent passing a 3/8 inch (9.5 mm) sieve and 0 percent passing a 1/4 inch (6.3 mm) sieve. Wash the standard reference aggregates with distilled water until free of dust, and dry them. | |||
| Weigh 3.280 ounces (93 grams) of the dry graded reference aggregate into a suitable container. Weigh 0.247 ounces (7 grams) of the emulsion onto the aggregate in the container, and vigorously mix the contents for 5 minutes. After mixing, thoroughly coat the stone. Completely immerse the mixture in tap water, and immediately pour off the tap water. Ensure that the aggregate surface area is at least 90 percent coated. | |||
|
[3] When shipped after October 1 and before April 15, except if the emulsion is stored and mixed at temperatures of emulsion, aggregate, and atmosphere above 40 °F (5 °C). |
|||
|
[4] Select the penetration within the following ranges of the designation specified: |
|||
|
Designation |
Penetration
at 77 °F (25 °C) |
||
|
MWS
300 |
300+ |
||
| MWS 150 |
150
to 300 |
||
|
MWS
90 |
90
to 150 |
||
|
MWS
60 |
MWS
60 |
||
|
[5] AASHTO T 50, except immediately pour residue from distillation into the float collar at 500 °F (260 °C); or if the residue has been allowed to cool, heat it again to 500 °F (260 °C) and pour it into the float collar. |
|||
|
[6] Test on residue from distillation. |
|||
702.13 Rubberized Asphalt Emulsion. Provide material consisting of asphalt emulsion SS-1 or SS-1h, conforming to 702.04, blended with rubber compound, conforming to 702.14, to produce a residual mixture of asphalt and rubber solids having a composition of 95 ± 0.3 percent asphalt and 5 ± 0.3 percent rubber solids by weight.
Furnish a certification to the Laboratory showing the following:
A.
The weight of rubber compound blended with the emulsion.
B.
The weight of SS-1 or SS-1h emulsion blended with the rubber compound.
C.
The Laboratory Report Number and/or the approved Notice of Shipment
Number of the SS-1 or SS-1h emulsion.
D.
The certified lot or batch number of the rubber compound.
E.
The percent of asphalt in the emulsion residue by distillation.
F.
The percent of rubber solids in rubber compound.
G.
The percent of rubber solids in the mixture of asphalt residue by
distillation and rubber solids.
Determine the weight of the rubber compound to be added to a designated weight of SS-1 or SS-1h emulsion to provide the percent of rubber solids in the mixture of asphalt residue by distillation and rubber solids specified herein using the following formula:
where:
X
= pounds (kilograms) of rubber
compound
A
= percent of rubber solids in the
rubber compound
B
= percent of asphalt residue by
distillation of SS-1 or SS-1h emulsion
W
= pounds (kilograms) of SS-1 or
SS-1h emulsion
702.14 Rubber Compound. Provide a dispersible rubber compound for use in rubberized sand-asphalt. The rubber compound shall consist of unvulcanized virgin synthetic rubber in the liquid latex form. The manufacturer of the rubber compound shall furnish a written certification of the total rubber solids content of the rubber compound and provide written certification containing actual test results showing compliance with the requirements of these Specifications.
Provide a rubber compound conforming to the following:
A. Rubber compound:
| Total rubber solids, % by weight (Certification) | 49+ |
| Ash, % of total rubber solids (ASTM D 297) | 3.5- |
B. Combination of rubber compound with reference asphalt, mixed according to Supplement 1012.02:
| Flow, cm | 5- |
|
Softening point, °C raise from reference asphalt, ASTM D 36 |
12+ |
Penetration @ 25 °C., 100 g, 5 sec., mm/10 drop from reference asphalt, ASTM D 5 |
10+ |
Viscosity, Brookfield units, Model RVF, spindle No. 7 @ 10 RPM @ 94 °C * |
175,000+ |
| Toughness inch-pounds (N×m) | 150+ (17+) |
| Tenacity, inch-pounds (N×m) | 90+ (10+) |
| Peak load, pounds (N) | 65+ (289+) |
| Elongation, inches (mm) | 20+ (500+) |
| Ductility @ 4 °C, 1 cm/min, ASTM D 113 | 150+ |
* Take the reading 60 seconds after spindle is actuated.
C. Mixture of the rubber compound with the reference asphalt and reference aggregate:
Dispersion of rubber, number of remaining black rubbery particles visible to the naked eye |
None |
|
Resistance to flexure fatigue, number of flexural units |
1500+ |
Perform the testing according to Supplement 1012.