100 general provisions

702.13 Rubberized Asphalt Emulsion. Provide material consisting of asphalt emulsion SS-1 or SS-1h, according to 702.04, blended with rubber compound, according 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.. consisting of unvulcanized virgin synthetic rubber in the liquid latex form. The manufacturer of the rubber compound will 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 according 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 @ 77 °F (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 @ 39 °F (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

702.16 Polymer Emulsified Binder

Emulsion (ASTM D 244)	Type A (b)	Type B (b,c,g)
Saybolt Furol Viscosity	100-400 (50 ºC)	20-100 (25 ºC)
Storage stability, 24 hrs., % difference, max (a)	1	1
Demulsibility, 35 ml of 0.8% Dioctyl Sodium Sulf., min	450	60
Demulsibility, 35 ml of 0.02N, CaCl2, %, min		60
Sieve test, (distilled water), %, max	0.1	0.05
Distillation to 190 ºC, residue % solids (d) symbol	68	63
Oil distillate, %, max	2	2
Distillation Residue
Penetration, 100g, 5 sec @77 ºF( 25ºC) ASTM D 5	70-100	90-150
Softening point, º C, min ASTM D 36	60
Solubility in TCE, %, min ASTM D 2042 or D 5546	97.5	97.5
Elastic Recovery, 50 ºF (10º C), %, min ASTM D 113, (e),(j)	70	58
Toughness/Tenacity, 77 ºF (25º C), 50 cm/min, Nm ASTM D 5801 (f)	report 16.0/ 9.0
Ductility, 39 ºF (4º C),1cm/min, min ASTM D 113, (if)	70

Notes:

(a) After standing undisturbed for 24 hours, the surface will show no white, milky colored substance, but will be a smooth homogeneous color throughout.

(b) CRS-2P, test within 20 days of shipment.

(c) HFRS-2P, test within 20 days of shipment.

(d) Maximum of 374 ºF (190 ºC) held for 15 minutes.

(e) Straight molds. Hold at test temperature for 90 minutes. Place in ductilometer and elongate 10 cm at 5 cm/min. Hold for 5 minutes and cut. After 1 hour retract the broken ends to touch and note elongation in cm (X). Percent Recovery = ((10-X)/10) x 100.

(f) SBR

(g) SBS, SB
702.17 Crack Sealant
A. Type I Crack Sealant. Conform to 705.04
B. Type II Crack Sealant. Provide a mixture of PG 64-22 certified binder (Supplement 1032) and polyester fibers (recycled fibers not permitted) according to the following requirements:
Denier; ASTM D 1577* 3.0 to 6.0

Length 0.25 0.02 inch (6.35 0.51mm)

Crimps; ASTM D 3937 None

Tensile str, min. ASTM D2256* 70,000 psi (483 Mpa)

Specific gravity 1.32 to 1.40

Minimum melting temperature 475 º F (256 º C)

Ignition temperature 1000 º F (538 º C) min.
* This data must be obtained prior to cutting the fibers.
The fiber and fiber manufacturer must be on the Qualified Products List.

Combine materials so the fibers are a minimum of 5.0 percent by total weight of the asphalt binder. Ensure combined materials are according to the following properties:

Strength (at break) at 72 º F (22 º C) 350 psi (2.4 MPa) min.

at 0 º F (-18 º C) 500 psi (3.5 MPa) min.

Elongation (at break) at 72 º F (22 º C) 50 percent min.

at 0 º F (-18 º C) 20 percent min.

The option for using premixed and prepackaged Type II crack sealant is permitted provided (1) the fibers and the fiber binder are according to the requirements as shown and, (2) the fiber binder is according to the manufacturer’s specifications. Furnish certified test data from the fiber binder manufacturer annually to the Laboratory, and when requested by the Laboratory. Furnish a letter of certification with each shipment stating that the material complies with specification requirements.

C. Type III Crack Sealant. Provide a mixture of PG 64-22 certified binder (Supplement 1032) and polypropylene fibers (recycled fibers not permitted) according to the following requirements:
Denier; ASTM D 1577* 15  3

Length, 0.390.08 inch (9.91 2.0 mm)

Crimps; ASTM D 3937 None

Tensile strength, min, ASTM D 2256* 40,000 psi (276 MPa)

Specific gravity 0.910.04

Minimum melting point 320 ⁰ F (160 ⁰ C)

* This data must be obtained prior to cutting the fibers.

The fiber and fiber manufacturer must be on the Qualified Products List.

Combine materials so the fibers are a minimum of 7.0 percent by total weight of the asphalt binder. Ensure combined materials are according to the following properties:

Strength (at break) at 72 º F (22 º C) 350 psi (2.4 MPa) min.

at 0 º F (-18 º C) 500 psi (3.5 MPa) min.

Elongation (at break) at 72 º F (22 º C) 50 percent min.

at 0 º F (-18 º C) 20 percent min.
D. Type IV Crack Sealant. Provide a prepackaged, preapproved mixture of modified binder according to the following properties and minimum 2.0 percent polyester fibers (recycled fibers not permitted) according to the following properties. Place sealant with a manufacturer’s representative for the fiber binder on site to ensure proper application and conditions.
Modified binder:
Cone penetration, 77 ⁰ F(25 ⁰ C) 50-90

Flow, 140 ⁰ F (60 ⁰ C) 1.0 cm max

Resilience, 77 ⁰ F (25 ⁰ C) 25-60 percent

Ductility, 77 ⁰ F (25 ⁰ C) 40 cm min

Bond, 0 ⁰ F (-18 ⁰ C), 100 percent ext. Pass 5 cycles

Impact, 0 ⁰ F (-18 ⁰ C) Pass

Compression recovery 0.40 min

Recommended pour temperature 380 ⁰ F (193 ⁰ C)

Safe heating temperature 410 ⁰ F (210 ⁰ C)
Polyester fiber properties and fiber approval: Same as for Type II crack sealant.

Fiber binder properties:

Safe heating temperature 400 ⁰ F (204 ⁰ C)

Softening point 190 ⁰ F (88 ⁰ C)

Viscosity, 400⁰ F(225 ⁰ C) 3000 cp min

Cone penetration, 77 ⁰ F(25 ⁰ C) 25-45

Workability Capable of being melted and applied through a pressure feed, indirect heated and agitated melter

Flexibility* Pass

* 1 inch (25mm) sample at -20 ⁰ F(-30 ⁰ C), 90 degree bend, 10 sec
Crack sealant approval: Submit 10 pounds (4.5 kg) of base modified binder and 10 pounds (4.5 kg) of fiber binder from the same batch to the Laboratory. Submit samples for approval annually. Before shipment to the project the fiber binder must be approved by the Laboratory. Additional testing or submission of samples may be required by the Laboratory.

1703 AGGREGATE

703.01 General.

The following abbreviations apply:

CCS- Crushed Carbonate Stone.

ACBFS- Air Cooled Blast Furnace Slag

GS- Granulated Slag

RACP – Reclaimed Asphalt Concrete Pavement

RPCC- Recycled Portland Cement Concrete

OH- Open Hearth Slag

EAF- Electric Arc Furnace Slag

BOF- Basic Oxygen Furnace Slag

PCS – Petroleum Contaminated Soil

A. Soundness. When the major portion of the unsound material in a coarse aggregate acquires a mud-like condition when tested for soundness, ensure that the maximum loss for all uses is 5 percent.

B. Stockpiles. Use stockpiling and loading methods that permit ready identification of the aggregates and to minimize segregation. Clean the sites for stockpiles before storing materials. Do not remove aggregates from stockpiles within 1 foot (0.3 m) of the ground until final cleanup of the work. Do not use material that has become mixed with foreign matter, wood or other size or grades of aggregates.

Handle aggregates in such a manner that the moisture content is reasonably uniform for each day’s run.

C. Size. Provide aggregate according to the size specified in the material specification, the construction item, or as shown in AASHTO M 43.

D. Method of Test. Provide aggregate tested by the following methods:

Amount finer than No. 200 (75 m) sieve S1004

Clay lumps S1017

Coal and lignite AASHTO T 113

Crushed pieces ASTM D 5821

Deleterious materials S1029

Effect of organic impurities on

strength of mortar AASHTO T 71

Liquid limit AASHTO T 89

Percent of wear, Los Angeles

abrasion test AASHTO T 96 or ASTM C 535

Plasticity index AASHTO T 90

Sieve analysis S1004, S1005

Sieve analysis of mineral filler AASHTO T 37

Sodium sulfate soundness test,

5 cycle AASHTO T104

Specific Gravity and percent absorption

for fine and coarse aggregate S1031

Unit weight AASHTO T 19

Light weight chert in aggregates AASHTO T 113

Sand equivalent AASHTO T 176

Uncompacted void content AASHTO T 304

Flat and elongated ASTM D 4791

Rapid freezing and thawing ASTM C 666, Procedure B

Insoluble residue of carbonate

aggregates ASTM D 3042

Compaction testing of Unbound Materials S1015

In place gradation sampling S1090

Sulphur leachate test S1027

Soundness of aggregate by freezing

and thawing AASHTO T 103

Micro-Deval……………………………..AASHTO T 327

Silicon Dioxide……………………………...ASTM C 146

Sodium sulfate soundness test,

Rock slabs………………………………ASTM D 5240
E. Steel Slag Aggregate. Provide open-hearth (OH), basic oxygen furnace (BOF,) and electric arc furnace (EAF) steel slag aggregate (known as steel slag) according to the following requirements when 703.04 aggregate for asphalt concrete base or when any 703.05 aggregate is specified.

Supply all steel slag from sources according to Supplement 1071. Furnish steel slag to a size meeting the specified grading requirements. Provide steel slag aggregate that meets the specified coarse or fine aggregate quality requirements. Ensure that measurement of soft pieces includes soft lime, lime oxide, or magnesia agglomerations or any foreign materials prone to rapid disintegration under construction processing and weathering conditions. Ensure that additional testing beyond those listed are performed or required any time poor quality steel slag is suspected due to visual inspection, testing, or field performance problems.

For every shipment of steel slag aggregate to the Contractor, provide a letter of certification covering the steel slag in the shipment to the Engineer from the processor and copies of quality control records from the processor (according to Supplement 1071). Ensure that the letter of certification documents that steel slag production and processing or slag by product stockpile retrieval and processing was according to Supplement 1071. Failure to follow the processor QC plan or continued problems with performance recognized by the Laboratory attributable to steel slag is cause for limiting steel slag use from that processor.

OH, BOF, or EAF slag is not permitted for coarse or fine aggregate (virgin or recycled) used in any surface course mix or any mix used as a surface course according to 703.05.

F. Restrictions. When an aggregate source is specially designated with a “SR or SRH” on the aggregate source group list according to Guidelines for Maintaining Adequate Pavement Friction in Surface Pavements, the aggregate source will be restricted for use in surface pavement pursuant to the methods in the guidelines. Remaining on the aggregate source group list is conditioned on complying with the group list procedures and requirements of 703.

TABLE 703.01-1 SIZE OF COARSE AGGREGATE (AASHTO M 43)

Size No.

Nominal size square openings ^(1)

Amounts finer than each laboratory sieve (square openings), percent by weight

4

3 1/2

3

2 1/2

2

1 1/2

1

3/4

1/2

3/8

No. 4

No. 8

No. 16

No. 50

No. 100

1

3 1/2 to 1 1/2

100

90 to 100

25 to 60

0 to 15

0 to 5

2

2 1/2 to 1 1/2

100

90 to 100

35 to 70

0 to 15

0 to 5

24

3 1/2 to 3/4

100

90 to 100

25 to 60

0 to 10

0 to 5

3

2 to 1

100

90 to 100

35 to 70

0 to 15

0 to 5

357

2 to No. 4

100

95 to 100

35 to 70

10 to 30

0 to 5

4

1 1/2 to 3/4

100

90 to 100

20 to 55

0 to 15

0 to 5

467

1 1/2 to No. 4

100

95 to 100

35 to 70

10 to 30

0 to 5

5

1 to 1/2

100

90 to 100

20 to 55

0 to 10

0 to 5

56

1 to 3/8

100

90 to 100

40 to 75

15 to 35

0 to 15

0 to 5

57

1 to No. 4

100

95 to 100

25 to 60

0 to 10

0 to 5

6

3/4 to 3/8

100

90 to 100

20 to 55

0 to 15

0 to 5

67

3/4 to No. 4

100

90 to 100

20 to 55

0 to 10

0 to 5

68

3/4 to No. 8

100

90 to 100

30 to 65

5 to 25

0 to 10

0 to 5

7

1/2 to No. 4

100

90 to 100

40 to 70

0 to 15

0 to 5

78

1/2 to No. 8

100

90 to 100

40 to 75

5 to 25

0 to 10

0 to 5

8

3/8 to No. 8

100

85 to 100

10 to 30

0 to 10

0 to 5

89

3/8 to No. 16

100

90 to 100

20 to 55

5 to 30

0 to 10

0 to 5

9

No. 4 to No. 16

100

85 to 100

10 to 40

0 to 10

0 to 5

10

No. 4 to 0 ^(2)

100

85 to 100

10 to 30

(1) In inches, except where otherwise indicated. Numbered sieves are those of the United States Standard Sieve Series.

(2) Screenings.

Where standard size of coarse aggregate designated by two or three digit numbers are specified, obtain the specified gradation by combining the appropriate single digit standard size aggregates by a suitable proportioning device which has a separate compartment for each coarse aggregate combined. Perform the blending as directed by the Laboratory.