ESBD_436558_1752771754513_2. Specification Item 300.pdf

2024 Specifications 300

Item 300

Asphalts, Oils, and Emulsions

1. DESCRIPTION

Provide asphalt cements, cutback and emulsified asphalts, performance-graded asphalt binders, and other miscellaneous asphalt materials as shown on the plans.

2. MATERIALS

Provide asphalt materials that meet the stated requirements when tested in conformance with the referenced Department, AASHTO, and ASTM test methods. Use asphalt containing recycled materials only if the recycled components meet the requirements of Article 6.9., “Recycled Materials.” Provide asphalt materials that the Department has preapproved for use in accordance with Tex-545-C.

Inform the Department of all additives or modifiers included in the asphalt binder as part of the facility quality plan, as required by Tex-545-C, and provide that information to Department personnel. The Department reserves the right to prohibit the use of any asphalt additive or modifier.

Limit the use of polyphosphoric acid to no more than 0.5% by weight of the asphalt binder.

The use of re-refined engine oil bottoms is prohibited.

Acronyms used in this Item are defined in Table 1.

Table 1 Acronyms

Acronym Definition Test Procedure Designations

Tex Department T or R AASHTO

D ASTM

Polymer Modifier Designations P polymer-modified SBS styrene-butadiene-styrene block co-polymer TR tire rubber modifier (obtained from ground truck and passenger vehicle post-consumer tires) AC asphalt cement AE asphalt emulsion AE-P asphalt emulsion prime A-R asphalt-rubber ARA emulsified asphalt recycling agent C cationic CRM crumb rubber modifier CSS cationic slow setting EAP&T emulsified asphalt prime and tack EBL emulsified bonding layer FDR full-depth reclamation H-suffix harder residue (lower penetration) HA hot-applied HF high float HRSS hard residue surface sealant HY high yield MC medium-curing

Acronym Definition MS medium-setting MSCR multiple stress creep recovery NT non-tracking PCE prime, cure, and erosion control PG performance grade RC rapid-curing RS rapid-setting S-suffix stockpile usage SCM special-use cutback material SS slow-setting SY standard yield TRAIL tracking resistant asphalt interlayer

2.1. Asphalt Cement. Provide AC that is homogeneous, water-free, and non-foaming when heated to 347°F, and in accordance with Table 2.

Table 2 Asphalt Cement

Property Test

Procedure

Viscosity Grade

AC-0.6 AC-1.5

Min Max Min Max Viscosity T 202

140°F, poise 40 80 100 200 275°F, poise 0.4 – 0.7 –

Penetration, 77°F, 100g, 5 sec. T 49 350 – 250 – Flash point, C.O.C., °F T 48 425 – 425 – Solubility, % T 44 99.0 – 99.0 – Spot test Tex-509-C Neg. Neg.

Tests on residue from RTFOT: T 240

Viscosity, 140°F, poise T 202 – 400 – 1,000 Ductility,1 77°F T 51 100 – 100 – 5 cm/min., cm

1. If AC-0.6 or AC-1.5 ductility at 77°F is less than 100 cm, material is acceptable if ductility at 60°F is more than 100 cm.

2.2. Polymer-Modified Asphalt Cement. Provide polymer-modified AC that is smooth, homogeneous, and meets the requirements shown in Table 3. Supply samples of the base AC and polymer additives if requested.

Table 3 Polymer-Modified Asphalt Cement

Property Test

Procedure

Polymer-Modified Viscosity Grade

AC-12-5TR NT-HA1 AC-15P AC-20XP AC-10-2TR AC-20-5TR

Min Max Min Max Min Max Min Max Min Max Min Max

Polymer TR – SBS SBS TR TR Polymer content, % (solids basis) Tex-533-C or Tex-553-C

5.0 – – – 3.0 – – – 2.0 – 5.0 –

Dynamic shear, G*/sin , 82°C, 10 rad/s, kPa

T 315 – – 1.0 – – – – – – – – –

Dynamic shear, G*/sin , 64°C, 10 rad/s, kPa

T 315 – – – – – – 1.0

– – – 1.0 –

Dynamic shear, G*/sin , 58°C, 10 rad/s, kPa

T 315 1.0 – – – – – – – 1.0 – – –

Viscosity 140°F, poise T 202 1,200 – – – 1,500 – 2,000 – 1,000 – 2,000 – 275°F, poise 275°F, Pa-s

T 202 T 316

4.0

8.0

8.0

10.0

Penetration, 77°F, 100 g, 5 sec. T 49 110 150 – 25 100 150 75 115 95 130 75 115 Elastic recovery, 50°F, % Tex-539-C 55 – – – 55 – 55 – 30 – 55 – Polymer separation Tex-540-C None – None None None None Flash point, C.O.C., °F T 48 425 – 425 – 425 – 425 – 425 – 425 – Tests on residue from RTFOT aging and pressure aging:

T 240 and R 28

Creep stiffness T 313 S, -18°C, Mpa – 300 – – – 300 – 300 – 300 – 300 m-value, -18°C 0.300 – – – 0.300 – 0.300 – 0.300 – 0.300 –

1. This is a hot-applied TRAIL product.

2.3. Cutback Asphalt. Provide cutback asphalt that meets the requirements shown in Tables 4, 5, and 6 for the specified type and grade. Supply samples of the base AC and polymer additives if requested.

Table 4 Rapid-Curing Cutback Asphalt

Property Test

Procedure

Type–Grade

RC-250

Min Max Kinematic viscosity, 140°F, cSt T 201 250 400 Water, % D95 – 0.2 Flash point, T.O.C., °F T 79 80 – Distillation test: T 78

Distillate, percentage by volume of total distillate to 680°F to 437°F 40 75 to 500°F 65 90 to 600°F 85 –

Residue from distillation, volume % 70 – Tests on distillation residue:

Viscosity, 140°F, poise T 202 600 2,400 Ductility, 5 cm/min., 77°F, cm T 51 100 – Solubility, % T 44 99.0 – Spot test Tex-509-C Neg.

Table 5 Medium-Curing Cutback Asphalt

Property Test

Procedure

Type–Grade

MC-30 MC-800 MC-3000

Min Max Min Max Min Max Kinematic viscosity, 140°F, cSt T 201 30 60 800 1,600 3,000 6,000 Water, % D95 – 0.2 – 0.2 – 0.2 Flash point, T.O.C., °F T 79 95 – 140 – 149 – Distillation test: T 78

Distillate, percentage by volume of total distillate to 680°F to 437°F – 35 – – – – to 500°F 30 75 – 40 – 15 to 600°F 75 95 45 85 15 75

Residue from distillation, volume % 50 – 75 – 80 – Tests on distillation residue:

Viscosity, 140°F, poise T 202 300 1,200 300 1,200 300 1,200 Ductility, 5 cm/min., 77°F, cm T 51 100 – 100 – 100 – Solubility, % T 44 99.0 – 99.0 – 99.0 – Spot test Tex-509-C Neg. Neg. Neg.

Table 6 Special-Use Cutback Asphalt

Property Test

Procedure

Type–Grade

SCM I

Min Max Kinematic viscosity, 140°F, cSt T 201 500 1,000 Water, % D95 – 0.2 Flash point, T.O.C., °F T 79 175 – Distillation test: T 78

Distillate, percentage by volume of total distillate to 680°F to 437°F – – to 500°F – 0.5 to 600°F 20 60

Residue from distillation, volume % 76 – Tests on distillation residue:

Penetration, 100 g, 5 sec., 77°F T 49 180 – Solubility, % T 44 99.0 –

2.4. Emulsified Asphalt. Provide emulsified asphalt that is homogeneous, does not separate after thorough mixing, and meets the requirements for the specified type and grade shown in Tables 7, 8, 9, 10, and 10A–C.

Table 7 Emulsified Asphalt

Property Test

Procedure

Type–Grade Rapid- Setting

Medium- Setting

Slow-Setting

HFRS-2 MS-2 SS-1 SS-1H

Min Max Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72 77°F, sec. – – – – 20 100 20 100 122°F, sec. 150 400 100 300 – – – –

Sieve test, % T 59 – 0.1 – 0.1 – 0.1 – 0.1 Miscibility T 59 – – Pass Pass Cement mixing, % T 59 – – – – – 2.0 – 2.0 Demulsibility, 35 mL of 0.02 N CaCl2, %

T 59 50 – – 30 – – – –

Storage stability, 1 day, % T 59 – 1 – 1 – 1 – 1 Freezing test, 3 cycles1 T 59 – Pass Pass Pass Distillation test: T 59

Residue by distillation, % by wt. 65 – 65 – 60 – 60 – Oil distillate, % by volume of emulsion

– 0.5 – 0.5 – 0.5 – 0.5

Tests on residue from distillation:

Penetration, 77°F, 100 g, 5 sec. T 49 100 140 90 160 90 160 40 100 Solubility, % T 44 97.5 – 97.5 – 97.5 – 97.5 – Ductility, 77°F, 5 cm/min., cm T 51 100 – 100 – 100 – 80 – Float test, 140°F, sec. T 50 1,200 – – – – – – –

1. Applies only when the Engineer designates material for winter use.

Table 8 Cationic Emulsified Asphalt

Property Test

Procedure

Type–Grade Rapid- Setting

Medium- Setting

Slow-Setting

CRS-2 CMS-2 CSS-1 CSS-1H

Min Max Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72

77°F, sec. – – – – 20 100 20 100 122°F, sec. 150 400 100 350 – – – –

Sieve test, % T 59 – 0.1 – 0.1 – 0.1 – 0.1 Cement mixing, % T 59 – – – – – 0.2 – 0.2 Coating ability and water resistance:

T 59

Dry aggregate/after spray – Good/Fair – – Wet aggregate/after spray – Fair/Fair – –

Demulsibility, 35 mL of 0.8% Sodium dioctyl sulfosuccinate, %

T 59 70 – – – – – – –

Storage stability, 1 day, % T 59 – 1 – 1 – 1 – 1 Particle charge T 59 Positive Positive Positive Positive Distillation test:

Residue by distillation, % by wt. 65 – 65 – 60 – 60 – Oil distillate, % by volume of emulsion

– 0.5 – 7 – 0.5 – 0.5

Tests on residue from distillation:

Penetration, 77°F, 100 g, 5 sec. T 49 90 160 90 200 90 160 40 110 Solubility, % T 44 97.5 – 97.5 – 97.5 – 97.5 – Ductility, 77°F, 5 cm/min., cm T 51 100 – 100 – 100 – 80 –

Table 9 Polymer-Modified Emulsified Asphalt

Property Test

Procedure

Type–Grade Rapid-Setting

HFRS-2P

Min Max

Viscosity, Saybolt Furol T 72 122°F, sec. 150 400 Sieve test, % T 59 – 0.1 Demulsibility, 35 mL of 0.02 N CaCl2, % T 59 50 – Storage stability, 1 day, % T 59 – 1 Distillation test:1 T 59

Residue by distillation, % by wt. 65 – Oil distillate, % by volume of emulsion – 0.5

Tests on residue from distillation:

Polymer content, wt. % (solids basis) Tex-533-C 3.0 – Penetration, 77°F, 100 g, 5 sec. T 49 90 140

Solubility, % T 44 97.0 – Viscosity, 140°F, poise T 202 1,500 – Float test, 140°F, sec. T 50 1,200 – Ductility,2 39.2°F, 5 cm/min., cm T 51 50 – Elastic recovery,2 50°F, % Tex-539-C 55 –

1. Exception to T 59: Bring the temperature on the lower thermometer slowly to 350 ± 10°F. Maintain at this temperature for 20 min. Complete total distillation in 60 ± 5 min. from the first application of heat.

2. HFRS-2P must meet one of either the ductility or elastic recovery requirements.

Table 10 Polymer-Modified Cationic Emulsified Asphalt

Property Test

Procedure

Type-Grade Rapid-Setting Medium-Setting Slow-Setting

CRS-2P CHFRS-2P CRS-2TR CMS-1P3 CMS-2P3 CSS-1P

Min Max Min Max Min Max Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72 77°F, sec. – – – – -- -- 10 100 – – 20 100 122°F, sec. 150 400 100 400 150 500 – – 50 400 – –

Sieve test, % T 59 – 0.1 – 0.1 -- 0.1 – 0.1 – 0.1 – 0.1 Demulsibility, 35 ml of 0.8% sodium dioctyl sulfosuccinate, %

T 59 70 – 60 – 40 -- – – – – – –

Storage stability, 1 day, % T 59 – 1 – 1 -- 1 – 1 – 1 – 1 Particle charge T 59 Positive Positive Positive Positive Positive Positive Distillation test1: T 59

Residue by distillation, % by weight 65 – 65 – 65 -- 30 – 60 – 62 – Oil distillate, % by volume of emulsion – 0.5 – 0.5 -- 3 – 0.5 – 0.5 – 0.5

Tests on residue from distillation:

Polymer content, wt. % (solids basis) Tex-533-C or

Tex-553-C

3.0 – 3.0 – 5.04 -- – – – – 3.0 –

Penetration, 77°F, 100 g, 5 sec. T 49 90 150 80 130 90 150 30 – 30 – 55 90 Viscosity, 140°F, poise T 202 1,300 – 1,300 – 1,000 -- – – – – – – Solubility, % T 44 97.0 – 95.0 – 98 -- – – – – 97.0 – Ductility, 77°F, 5 cm/min., cm T 51 – – – – 40 -- – – – – 70 – Float test, 140°F, sec. T 50 – – 1,800 – -- -- – – – – Ductility,2 39.2°F, 5 cm/min., cm T 51 50 – – – -- -- – – – – – – Elastic recovery,2 50°F, % Tex-539-C 55 – 55 – -- -- – – – – – –

Tests on residue from evaporative recovery:

R 78, Procedure B

Nonrecoverable creep compliance of residue, 3.2 kPa, 52°C, kPa-1 T 350

– – – – – – – 2.0

– 4.0

1. Exception to T 59: Bring the temperature on the lower thermometer slowly to 350 ± 10°F. Maintain at this temperature for 20 min. Complete total distillation in 60 ± 5 min. from the first application of heat.

2. CRS-2P must meet one of either the ductility or elastic recovery requirements.

3. With all precertification samples of CMS-1P or CMS-2P, submit certified test reports showing the type and percent of rejuvenator and/or latex added. Submit samples of these raw materials if requested by the Engineer.

4. Modifier type is TR. Determined in accordance with Tex-553-C.

Table 10A Non-Tracking Tack Coat Emulsion1

Property Test

Procedure

NT-HRE NT-RRE NT-SRE

Min Max Min Max Min Max Viscosity, Saybolt Furol, 77°F, sec. T 72 15 – 15 – 10 100 Storage stability, 1 Day, % T 59 – 1 – 1 – 1 Settlement, 5-day, % T 59 – 5 – 5 – 5 Sieve test, % T 59 – 0.30 – 0.30 – 0.1 Distillation test:2 T 59

Residue by distillation, % by wt. 50 – 58 – 50 – Oil distillate, by volume of emulsion – 1.0 – 1.0 – 1.0

Test on residue from distillation:

Penetration, 77°F, 100 g, 5 sec.

Solubility, % Dynamic shear, 10 rad/s, kPa

97.5

T 49 T 44 T 315

97.5 1.0

97.5

1. These are emulsion-based TRAILs. Due to the hardness of the residue, these emulsions should be heated to 120–140° F prior to thorough mixing as the emulsion is being prepared for testing.

2. Exception to T 59: Bring the temperature on the lower thermometer slowly to 350 ± 10°F. Maintain at this temperature for 20 min. Complete total distillation in 60 ± 5 min. from first application of heat.

Table 10B Spray-Applied Underseal Membrane Polymer-Modified Emulsions

Property Test

Procedure

EBL

Min Max Viscosity @ 77°F, SSF T 72 20 100 Storage Stability1, % T 59 – 1 Demulsibility2

Anionic emulsions — 35 ml of 0.02 N CaCl2, % Cationic emulsions — 35 ml 0.8% sodium dioctyl sulfosuccinate, %

T 59 55 –

Sieve Test3, % T 59 – 0.05 Distillation Test4

Residue by distillation, % by wt.

Oil portion of distillate, % by vol.

0.5

Test on Residue from Distillation Elastic Recovery @ 50°F, 50 mm/min., % Tex-539-C 60 – Penetration @ 77°F, 100 g, 5 sec, 0.1 mm T 49 80 130

1. After standing undisturbed for 24 hr., the surface must be smooth, must not exhibit a white or milky colored substance, and must be a homogeneous color throughout.

2. Material must meet demulsibility test for emulsions.

3. May be required by the Engineer only when the emulsion cannot be easily applied in the field.

4. The temperature on the lower thermometer should be brought slowly to 350 ± 10°F and maintained at this temperature for 20 min. The total distillation should be completed in 60 ± 5 min. from the first application of heat.

Table 10C Full-Depth Reclamation Emulsion

Property Test

Procedure

Standard Yield

(FDR EM-SY)

High Yield

(FDR EM-HY)2

Min Max Min Max Viscosity Saybolt Furol @ 77°F, sec.

Sieve test, % Cement mixing, % % Storage stability, 1 day, % Distillation test1:

Residue by distillation, % by wt.

Oil portion of distillate, % by vol.

T 72 T 59 T 59 T 59 T 59

0.1 2.0

0.5

0.1 2.0

0.5 Test on residue from distillation:

Penetration @ 77°F, dmm T 49 40

1. The temperature on the lower thermometer should be brought slowly to 350 ± 10°F and maintained at this temperature for 20 min. The total distillation should be completed in 60 ± 5 min. from the first application of heat.

2. Provide a manufacturer’s certificate of analysis (COA) with the type and percent of rejuvenator added.

2.5. Specialty Emulsions. Provide specialty emulsion that is either asphalt-based or resin-based and meets the requirements shown in Table 11 or Table 11A.

Table 11 Specialty Emulsions

Property Test

Procedure

Type–Grade Medium-Setting Slow-Setting

AE–P EAP&T PCE1

Min Max Min Max Min Max Viscosity, Saybolt Furol T 72

77°F, sec. – – – – 10 100 122°F, sec. 15 150 – – – –

Sieve test, % T 59 – 0.1 – 0.1 – 0.1 Miscibility2 T 59 – Pass Pass Demulsibility, 35 mL of 0.10 N CaCl2, % T 59 – 70 – – – – Storage stability, 1 day, % T 59 – 1 – 1 – – Particle size,5 % by volume < 2.5 m Tex-238-F3 – – 90 – 90 – Asphalt emulsion distillation to 500°F followed by Cutback asphalt distillation of residue to 680°F:

T 59 and T 78

Residue after both distillations, % by wt. 40 – – – – – Total oil distillate from both distillations, % by volume of emulsion

25 40 – – – –

Residue by distillation, % by wt. T 59 – – 60 – – – Residue by evaporation,4 % by wt. T 59 – – – – 60 – Tests on residue after all distillation(s):

Viscosity, 140°F, poise T 202 – – 800 – – – Kinematic viscosity,5 140°F, cSt T 201 – – – – 100 350 Flash point C.O.C., °F T 48 – – – – 400 – Solubility, % T 44 97.5 – – – – – Float test, 122°F, sec. T 50 50 200 – – – –

1. Supply with each shipment of PCE:

a copy of a lab report from an approved analytical lab, signed by a lab official, indicating the PCE formulation does not meet any characteristics of a Resource Conservation Recovery Act (RCRA) hazardous waste;

a certification from the producer that the formulation supplied does not differ from the one tested and that no listed RCRA hazardous wastes or Polychlorinated Biphenyls have been mixed with the product; and a Safety Data Sheet.

2. Exception to T 59: In dilution, use 350 mL of distilled or deionized water and a 1,000-mL beaker.

3. Use Tex-238-F, beginning at “Particle Size Analysis by Laser Diffraction,” with distilled or deionized water as a medium and no dispersant, or use another approved method.

4. Exception to T 59: Leave sample in the oven until foaming ceases, then cool and weigh.

5. PCE must meet either the kinematic viscosity requirement or the particle size requirement.

Table 11A Hard Residue Surface Sealant

Property Test Procedure HRSS Min Max

Viscosity, Krebs unit, 77°F, Krebs units D 562 45 75 Softening point, °F Tex-505-C1 250 – Uniformity D 2939 Pass2

Resistance to heat D 2939 Pass3

Resistance to water D 2939 Pass4

Wet flow, mm D 2939 – 0 Resistance to Kerosene (optional)5 D 2939 Pass6

Ultraviolet exposure, UVA-340, 0.77 W/m2, 50°C chamber, 8 hr. UV lamp, 5 min. spray, 3 hr. 55 min. condensation, 1,000 hr. total exposure7

G 154 Pass8

Abrasion loss, 1.6 mm thickness, liquid only, % ISSA TB-100 – 1.0 Residue by evaporation, % by weight D 2939 33 – Tests on residue from evaporation:

Penetration, 77°F, 100 g, 5 sec. T 49 15 30 Flash point, Cleveland open cup, °F T 48 500 –

Tests on base asphalt before emulsification Solubility, % T 44 98 –

1. Cure the emulsion in the softening point ring in a 200 ± 5°F oven for 2 hr.

2. Product must be homogenous and show no separation or coagulation that cannot be overcome by moderate stirring.

3. No sagging or slippage of film beyond the initial reference line.

4. No blistering or re-emulsification.

5. Recommended for airport applications or where fuel resistance is desired.

6. No absorption of Kerosene into the clay tile past the sealer film. Note sealer surface condition and loss of adhesion.

7. Other exposure cycles with similar levels of irradiation and conditions may be used with Department approval.

8. No cracking, chipping, surface distortion, or loss of adhesion. No color fading or lightening.

2.6. Diluted Emulsions. Provide emulsified asphalt that is homogeneous, does not separate after thorough mixing, and meets the requirements for the specified type and grade shown in Tables 12 and 12A, where the suffixes 50/50, 40/60, and 30/70 mean 50% emulsion diluted with 50% water; 40% emulsion diluted with 60% water, and 30% emulsion diluted with 70% water, respectively. For example, CSS-1H 40/60 means 40% CSS-1H diluted with 60% water and AE-P 30/70 means 30% AE-P diluted with 70% water.

Table 12 Cationic Diluted Emulsified Asphalt

Property Test

Procedure

Type-Grade Diluted Slow-Setting

CSS-1H 50/50 CSS-1H 40/60 CSS-1H 30/70

Min Max Min Max Min Max

Viscosity, Saybolt Furol 77°F, sec. T 72 Report only Report only Report only

Distillation test

Residue by distillation, % by wt. 30 – 24 – 18 – Oil distillate, % by volume of emulsion – 0.5 – 0.5 – 0.5

Tests on residue from distillation:

Penetration, 77°F, 100 g, 5 sec. T 49 40 110 40 110 40 110 Solubility, % T 44 97.5 – 97.5 – 97.5 – Ductility, 77°F, 5 cm/min., cm T 51 80 – 80 – 80 –

Table 12A Diluted Specialty Emulsions

Property Test

Procedure

Type-Grade Diluted Slow-Setting

AE-P 50/50 AE-P 40/60 AE-P 30/70

Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72 122°F, sec. Report only Report only Report only

Asphalt emulsion distillation to 500°F followed by cutback asphalt distillation of residue to 680°F:

T 59 and T 78

Residue after both distillations, % by wt. 20 – 16 – 12 – Total oil distillate from both distillations, % by volume of emulsion

12.5 20 10.0 16 7.5 12

Tests on residue after all distillations:

Solubility, % T 44 97.5 – 97.5 – 97.5 – Float test, 122°F, sec. T 50 50 200 50 200 50 200

2.7. Recycling Agent. Recycling agent and emulsified asphalt recycling agent (ARA) must meet the requirements shown in Table 13. Additionally, recycling agent and residue from ARA, when added in the specified proportions to the recycled asphalt, must meet the properties shown on the plans.

Table 13 Recycling Agent and Emulsified Asphalt Recycling Agent

Property Test

Procedure Recycling Agent ARA-1 ARA-1P

Min Max Min Max Min Max Viscosity, Saybolt Furol, 77°F, sec. T 72 – – 15 100 15 110 Sieve test, % T 59 – – – 0.1 – 0.1 Miscibility1 T 59 – No coagulation – Residue by evaporation2, % by wt. T 59 – – 60 – – – Distillation test3:

Residue by distillation, % by wt.

Oil distillate, % by volume of emulsion

T 59

Penetration of distillation residue at 39.2°F, 100 g, 5 sec.

T 49 – – – – 110 190

Tests on recycling agent or residue from evaporation:

Flash point, C.O.C., °F T 48 400 – 400 – 400 – Kinematic viscosity T 201

140°F, cSt 75 200 75 200 – – 275°F, cSt – 10.0 – 10.0 – –

1. Exception to T 59: Use 0.02 N CaCl2 solution in place of water.

2. Exception to T 59: Maintain sample at 300°F until foaming ceases, then cool and weigh.

3. Exception to T 59: Bring the temperature on the lower thermometer slowly to 350 ± 10°F. Maintain at this temperature for 20 min. Complete total distillation in 60 ± 5 min. from first application of heat.

2.8. Crumb Rubber Modifier. CRM consists of automobile and truck tires processed by ambient temperature grinding.

CRM must be:

free of contaminants, including fabric, metal, and mineral and other non-rubber substances;

free-flowing; and non-foaming when added to hot asphalt binder.

Ensure rubber gradation meets the requirements of the grades shown in Table 14 when tested in accordance with Tex-200-F, Part I, using a 50-g sample.

Table 14 CRM Gradations

Sieve Size (% Passing)

Grade A Grade B Grade C Grade D Grade E Min Max Min Max Min Max

As shown on the plans

As approved

#8 100 – – – – – #10 95 100 100 – – – #16 – – 70 100 100 – #30 – – 25 60 90 100 #40 – – – – 45 100 #50 0 10 – – – – #200 – – 0 5 – –

2.9. Crack Sealer. Provide polymer-modified emulsified asphalt crack sealer meeting the requirements shown in Table 15. Provide rubber-asphalt crack sealer meeting the requirements shown in Table 16.

Table 15 Polymer-Modified Emulsified Asphalt Crack Sealer Property Test Procedure Min Max

Rotational viscosity, 77°F, cP D2196, Method A 10,000 25,000 Sieve test, % T 59 – 0.1 Storage stability, 1 day, % T 59 – 1 Evaporation Tex-543-C

Residue by evaporation, % by wt. 65 – Tests on residue from evaporation:

Penetration, 77°F, 100 g, 5 sec. T 49 35 75 Softening point, °F T 53 140 – Ductility, 39.2°F, 5 cm/min., cm T 51 100 –

Table 16 Asphalt-Rubber Crack Sealer

Property Test Procedure Class A Class B

Min Max Min Max CRM content, Grade A or Grade B, % by wt. Tex-544-C 22 26 – – CRM content, Grade B, % by wt. Tex-544-C – – 13 17 Virgin rubber content1, % by wt. – – 2 – Flash point2, C.O.C., °F T 48 400 – 400 – Penetration3, 77°F, 150 g, 5 sec. T 49 30 50 30 50 Penetration3, 32°F, 200 g, 60 sec. T 49 12 – 12 – Softening point, °F T 53 – – 170 – Bond test, non-immersed, 0.5 in specimen, 50% extension, 3 cycles, 20°F4 D5329 – Pass

1. Provide certification that the Min % virgin rubber was added.

2. Agitate the sealing compound using a 3/8–1/2-in. (9.5–12.7-mm) wide, square-end metal spatula to bring the material on the bottom of the cup to the surface (i.e., turn the material over) before passing the test flame over the cup. Start at one side of the thermometer, move around to the other, and then return to the starting point using 8–10 rapid circular strokes. Accomplish agitation in 3–4 sec. Pass the test flame over the cup immediately after stirring is completed.

3. Exception to T 49: Substitute the cone specified in D217 for the penetration needle.

4. Allow no crack in the crack-sealing materials or break in the bond between the sealer and the mortar blocks more than 1/4 in. deep for any specimen after completion of the test.

2.10. Asphalt-Rubber Binders. Provide A-R binders that are mixtures of asphalt binder and CRM that have been reacted at elevated temperatures. Provide A-R binders meeting D6114 and containing at least 15% CRM by weight. Provide Type I or Type II, containing CRM Grade C, for use in hot-mix aggregate mixtures. Provide Type II or Type III, containing CRM Grade B, for use in surface treatment binder. Ensure binder properties meet the requirements shown in Table 17.

Table 17 A-R Binders

Property Test

Procedure

Binder Type Type I Type II Type III

Min Max Min Max Min Max

Apparent viscosity, 347°F, cP D2196, Method A 1,500 5,000 1,500 5,000 1,500 5,000

Penetration, 77°F, 100 g, 5 sec. T 49 25 75 25 75 50 100 Penetration, 39.2°F, 200 g, 60 sec. T 49 10 – 15 – 25 – Softening point, °F T 53 135 – 130 – 125 – Resilience, 77°F, % D5329 25 – 20 – 10 – Flash point, C.O.C., °F T 48 450 – 450 – 450 – Tests on residue from RTFOT: T 240

Retained penetration ratio, 39.2°F, 200 g, 60 sec., % of original

T 49 75 – 75 – 75 –

2.11. Performance-Graded Binders. Provide PG binders that are smooth and homogeneous, show no separation when tested in accordance with Tex-540-C, and meet the requirements shown in Table 18.

Separation testing is not required if:

a modifier is introduced separately at the mix plant by injection in either the asphalt line or mixer, the binder is blended onsite in continuously agitated tanks, or binder acceptance is based on field samples taken from an in-line sampling port at the hot-mix plant after the addition of modifiers.

Table 18 Performance-Graded Binders

Property and Test Method Performance Grade

PG 58 PG 64 PG 70 PG 76 PG 82

-22 -28 -34 -16 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 Average 7-day Max pavement design temperature, °C1 58 64 70 76 82

Min pavement design temperature, °C1 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 Original Binder

Flash point, T 48, Min, °C 230 Viscosity, T 3162, 3:

Max, 3.0 Pa s, test temperature, °C

Dynamic shear, T 3154:

58 64 70 76 82 G*/sin( ), Min, 1.00 kPa, Max, 2.00 kPa5, Test temperature @ 10 rad/sec., °C Elastic recovery, D6084, 50°F, % Min6 – – 30 – – 30 50 – 30 50 60 30 50 60 70 50 60 70

Rolling Thin Film Oven (RTFO) (T 240) Mass change, T 240, Max, % 1.0 Dynamic shear, T 315

58 64 70 76 82G*/sin( ), Min, 2.20 kPa, Max, 5.00 kPa5, Test temperature @ 10 rad/sec., °C

MSCR, T 350, recovery, 0.1 kPa, high PG temperature, % Min6

– – 20 – – 20 30 – 20 30 40 20 30 40 50 30 40 50

Pressure Aging Vessel (PAV) Residue (R 28) PAV aging temperature, °C 100 Dynamic shear, T 315

25 22 19 28 25 22 19 28 25 22 19 28 25 22 19 28 25 22 G*.sin ( ), Max, 5,000 kPa (Max, 6,000 kPa for Test temperature @ 10 rad/sec., °C

Creep stiffness, T 3137, 8

-12 -18 -24 -6 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18 S, Max, 300 Mpa, m-value, Min, 0.300 Test temperature @ 60 sec., °C

Direct tension, T 3148

-12 -18 -24 -6 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18 Failure strain, Min, 1.0% Test temperature @ 1.0 mm/min., °C

1. Pavement temperatures are estimated from air temperatures using an algorithm contained in a Department-supplied computer program, may be provided by the Department, or may be obtained by following procedures outlined in AASHTO M 323 and R 25.

2. This requirement may be waived at the Department’s discretion if the supplier warrants that the asphalt binder can be adequately pumped, mixed, and compacted at temperatures that meet all applicable safety, environmental, and constructability requirements. At test temperatures where the binder is a Newtonian fluid, any suitable standard means of viscosity measurement may be used, including capillary (T 201 or T 202) or rotational viscometry (T 316).

3. Viscosity at 135°C is an indicator of mixing and compaction temperatures that can be expected in the lab and field. High values may indicate high mixing and compaction temperatures. Additionally, significant variation can occur from batch to batch. Contractors should be aware that variation could significantly impact their mixing and compaction operations. Contractors are therefore responsible for addressing any constructability issues that may arise.

4. For quality control of unmodified asphalt binder production, measurement of the viscosity of the original asphalt binder may be substituted for dynamic shear measurements of G*/sin ( ) at test temperatures where the asphalt is a Newtonian fluid. Any suitable standard means of viscosity measurement may be used, including capillary (T 201 or T 202) or rotational (T 316) viscometry.

5. Max values for unaged and RTFO-aged dynamic shear apply only to materials used as substitute binders, as described in Item 341, “Dense- Graded Hot-Mix Asphalt,” and Item 344, “Superpave Mixtures.”

6. Elastic recovery (D6084) is not required unless MSCR (T 350) is less than the Min % recovery. Elastic recovery will be used for the acceptance criteria in this instance.

7. Silicone beam molds, as described in AASHTO TP 1-93, are acceptable for use.

8. If creep stiffness is below 300 Mpa, direct tension test is not required. If creep stiffness is between 300 and 600 Mpa, the direct tension failure strain requirement can be used instead of the creep stiffness requirement. The m-value requirement must be satisfied in both cases.

3. EQUIPMENT

Provide all equipment necessary to transport, store, sample, heat, apply, and incorporate asphalts, oils, and emulsions.

4. CONSTRUCTION

4.1. Typical Material Use. Use materials shown in Table 19, unless otherwise determined by the Engineer.

Table 19 Typical Material Use

Material Application Typically Used Materials Hot-mixed, hot-laid asphalt mixtures PG binders, A-R binder Types I and II

Surface treatment

PG 58-22, AC-15P, AC-20XP, AC-10-2TR, AC-20-5TR, HFRS-2, MS-2,

CRS-2, CRS-2TR, CMS-2P, HFRS-2P, CRS-2P, CHFRS-2P, A-R binder Types II and III

Surface treatment (cool weather) AC12-5TR, RC-250, MC-800, MC-3000, CMS-2P Precoating PG 58-22, PG 64-22, SS-1, SS-1H, CSS-1, CSS-1H Tack coat PG binders, SS-1H, CSS-1H, EAP&T, TRAIL, EBL

Fog seal

SS-1, SS-1H, CSS-1, CSS-1H, CSS-1H 50/50, CSS-1H 40/60, CSS-1H

30/70, CMS-1P

Hot-mixed, cold-laid asphalt mixtures AC-0.6, AC-1.5, PG 58-22, CMS-2 Patching mix MC-800, SCM I Recycling AC-0.6, AC-1.5, recycling agent, ARA-1, ARA-1P

Crack sealing Polymer-modified AE crack sealant, asphalt-rubber crack sealers (Class A, Class B)

Microsurfacing CSS-1P Prime MC-30, AE-P, AE-P 50/50, AE-P 40/60, AE-P 30/70, EAP&T, PCE Curing membrane SS-1, SS-1H, CSS-1, CSS-1H, PCE Erosion control SS-1, SS-1H, CSS-1, CSS-1H, PCE FDR-foaming PG 64-22, FDR EM-SY, FDR EM-HY

4.2. Storage and Application Temperatures. Use storage and application temperatures in accordance with Table 20. Store and apply materials at the lowest temperature yielding satisfactory results. Follow the manufacturer’s instructions for any agitation requirements in storage. Manufacturer’s instructions regarding recommended application and storage temperatures supersede those shown in Table 19.

Table 20 Storage and Application Temperatures

Type-Grade Application Storage

Maximum (°F)

Recommended Range (°F)

Maximum Allowable (°F)

AC-0.6, AC-1.5 200–300 350 350

AC-15P, AC-20-5TR, AC12-5TR, and AC10-2TR 300–375 375 360

RC-250 125–180 200 200

MC-30, AE-P 70–150 175 175

MC-800, SCM I 175–260 275 275

MC-3000 225–275 290 290

HFRS-2, MS-2, CRS-2, HFRS-2P, CRS-2P, CMS-2,

CRS-2TR

120–160 180 180

SS-1, SS-1H, CSS-1, CSS-1H, PCE, EAP&T, CSS-1P,

recycling agent, emulsified recycling agent, polymer-modified AE crack sealant

50–130 140 140

PG binders 275–350 350 350 Asphalt-rubber crack sealers (Class A, Class B) 350–375 400 – A-R binder Types I, II, and III 325–425 425 425

5. MEASUREMENT AND PAYMENT

The work performed, materials furnished, equipment, labor, tools, and incidentals will not be measured or paid for directly, but will be subsidiary to or are included in payment for other pertinent Items.

2024 Specifications 301

Item 301

Asphalt Antistripping Agents

1. DESCRIPTION

Furnish and incorporate all required asphalt antistripping agents in asphalt concrete paving mixtures and asphalt-stabilized base mixtures to meet moisture resistance testing requirements.

2. MATERIALS

2.1. Lime. Provide hydrated lime or commercial lime slurry in accordance with DMS-6350, “Lime and Lime Slurry.”

2.2. Liquid Antistripping Agent. Provide a liquid antistripping agent that is uniform and shows no evidence of crystallization, settling, or separation.

Ensure all liquid antistripping agents arrive in:

properly labeled and unopened containers, as shipped from the manufacturer; or sealed tank trucks with an invoice to show contents and quantities.

Provide product information to the Engineer, including:

Safety Data Sheet, specific gravity of the agent at the manufacturer’s recommended addition temperature, manufacturer’s recommended dosage range, and handling and storage instructions.

3. EQUIPMENT

Provide all equipment to store, handle, dispense, meter, and mix asphalt antistripping agents.

4. CONSTRUCTION

4.1. Laboratory Design Evaluation and Production Mixture Verification. Provide a laboratory mixture design and production mixture that meet moisture resistance requirements. Evaluate proposed asphalt pavement or base mixtures during design and production in conformance with the moisture resistance requirements in the asphalt mixture specification.

Governing specifications require the Contractor or Engineer to design the mixture, and the party performing the design is responsible for the moisture susceptibility evaluation. If the Contractor designs the mixture, the Engineer verifies compliance.

Determine the dosage needed to achieve the moisture resistance requirements during design if an antistripping agent is required. Use this addition rate in the production mixture.

Add between 0.5% and 2.0% of hydrated lime or commercial lime slurry solids by weight of the individual aggregate treated when using lime.

Add liquid antistripping agent, when used, to the binder, in conformance with the manufacturer’s instructions.

Do not exceed the manufacturer’s maximum recommended dosage rate.