Attachment 1 - SOW Emulsion and Sealcoat Products_20Apr26.pdf

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STATEMENT OF WORK

April 20, 2026

Statement of Work (SOW)

Asphalt Emulsion and Pavement Sealcoat

Government Pickup: Asphalt Emulsion and Pavement Seal Coat supplier shall be responsible for loading the Asphalt Emulsion into government supplied asphalt distributor trucks. The government will provide 24 hour notice prior to picking up Item 1, 2, 3, 4, Monday through Saturday.

Government Ordering (Call) Quantities: The government may order (call) a minimum amount of 1 ton up to the maximum of the delivery order of Item 1, 2, 3, 4, 5.

Pickup Hours: Standard government operating hours are 7:00 A.M. through 5:00 P.M. Monday through Friday. During summer construction season (generally May-September) the government may arrange for delivery of Asphalt Emulsion and Pavement Sealcoat after 5:00 p.m. pending status of Suppliers plant operations. The government will give 72 hour notice for any asphalt delivery required after 9:00 P.M. Upon receipt of any material, weight tickets shall be provided for each load to the government representative receiving such material.

Standards: Asphalt Emulsion and Pavement Seal Coat supplier will produce all emulsion mix designs within standard specification outlined within each attached Item number. All material and batch testing will be IAW industry ASTM standards. Temperature of batched emulsion products will be maintained between 140F-160F and be thoroughly mixed

Quality Control Test Reports: Supplier shall provide quality control test results of all materials in accordance with the specifications for each mixture type upon request of the Heavy Repair Shop, 773d Civil Engineer Squadron.

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Asphalt Emulsion

ITEM 0001: STE-1 Special Tack Emulsified Asphalt Specification:

Test on Emulsion:

Viscosity, SSF at (25°C), Max 30

Storage Stability, 1 Day, %*, Max 1

Demulsibility, 35 ml, 0.8% Sodium Dioctyl 25 Sulfosuccinate (SOS), Percent, Min, T59

Sieve Test, Percent Retained, Max, T59 0.10

Particle Charge Test/PH '2 l, T59 Positive

Distillation:

Oil by Volume, Percent of Emulsion, Max, T59 5

Residue, Percent by Weight of Emulsion, Min, T59 52

Tests on Residue from Distillation: Min Max Penetration at 77°F, 100g, 5s, T49 100 200

Ductility at 77°F, 5 cm/min, cm, T51 40

Solubility in n-bromopropane, %, Min, T44 97.5

*This test requirement on representative samples is waived if successful application of the material has been achieved in the field.

Product must meet requirements of Department of Environmental Conservation, ARTICLE 7.

Surface Oiling Permit. Section 18 AAC 75.720. Prohibitions. Material will be considered out of specification if the product contains any of the following components in concentrations indicated:

1) polychlorinated biphenyls (PCBs) in any detectable concentration;

2) total volatile aromatics in 5,000 parts per million by weight or greater;

3) total halogenated volatile organics in 100 parts per million by weight or

4) lead in 300 parts per million by weight or greater.

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ITEM 0002: CSS-1 Cationic Slow Setting Asphalt Emulsion Specification:

Test on Emulsion:

Viscosity, SSF at (77°F), AASHTO T72 20 100

Storage Stability, 24 Hours, Percent Max '1 1

Cement Test, Percent, ASTM D244 2.0

Sieve Test, Percent Max, T59 Particle 0.10

Charge Test/PH '2 l, T59 Positive

Distillation:

Residue, Percent by Weight of Emulsion, Min, T59 57

Tests on Residue from Distillation: Min Max Penetration at 77°F, 100g, 5s, T49 100 250

Ductility at 77°F, 5 cm/min, cm, T51 40

Solubility in n-bromopropane, %, Min, T44 97.5

1. Storage Stability test may be used in place of Settlement Test.

2. PH may be used only if a particle charge tester is not available.

3. Test standard specification used ASTM D 2397

4. Test methods used ASTM D 244

Product must meet requirements of Department of Environmental Conservation, ARTICLE 7.

5) polychlorinated biphenyls (PCBs) in any detectable concentration;

6) total volatile aromatics in 5,000 parts per million by weight or greater;

7) total halogenated volatile organics in 100 parts per million by weight or

8) lead in 300 parts per million by weight or greater.

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ITEM 0003: CRS-2P Cationic Rapid Setting Asphalt Emulsion with Latex Modifiers:

Test on Emulsion: Min Max Viscosity, Saybolt Farol at 122°F (50°C), AASHTO T72 100 400

Storage Stability, 24 Hours, Percent Max, T59 1

Demulsibility, 35ml, 0.8% Sodium dioctyl sulfosuccinate, % Min, T59

Particle Charge, T59 PH if Particle Charge is inconsistent

Positive 6.7

Sieve Test, %, Max, T59 0.10

Distillation:

Oil by Volume, Percent of Emulsion, Max, T59

Min Max

Residue, Percent by weight of Emulsion, Min, T59 65

Tests on Residue from Distillation: Min Max Penetration at 77°F (25°C), 100g, 5s, T49 100 250

Ductility at 77°F (25°C), 5 cm/min, cm, T51 80

Solubility in n-bromopropane, %, Min, T44 97.5

Elastic Recovery:

TC 301 @ 10°C, min %

Min

Max

1. Conforms to AASHTO M -208

2. *This test requirement on representative samples is waived if successful application of the material has been achieved in the field.

Product must meet requirements of SOA/Department of Environmental Conservation, ARTICLE 7.

9) polychlorinated biphenyls (PCBs) in any detectable concentration;

10) total volatile aromatics in 5,000 parts per million by weight orgreater;

11) total halogenated volatile organics in 100 parts per million by weight or

12) lead in 300 parts per million by weight or greater.

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Asphalt Pavement Seal Coat

ITEM 0004: GSB 88

Specifications:

GSB-88® is available in either a concentrate or ready to use form. The concentrate form allows large shipments via tank truck, ISO container, and flex tank or railroad tank car. The concentrate form must be diluted with hot water prior to application.

Specifications for GSB-88® Concentrate are as follows:

Saybolt Viscosity at 77°F (25°C) ASTM D-244 - - - - 20 to 100 seconds

Residue by Distillation, or Evaporation - - - - 57% min.

Sieve test ASTM D-244 (one tenths of one %) - - - - 0.1%

5 day Settlement test ASTM D-244 - - - - 5.0% max.

Particle charge (1) ASTM D-244 - - - - Positive

Specifications for GSB-88® Ready-to-Apply

ONE PART EMULSION TO ONE PART WATER

Saybolt Viscosity at 77°F (25°C) ASTM D-244 - - - - 10 to 50 sec.

Residue by Distillation, or Evaporation - - - - 28.5 minimum

Pumping Stability test (2) - - - - Pass

TWO PARTS EMULSION TO ONE PART WATER

Saybolt Viscosity at 77°F (25°C) ASTM D-244 - - - - 10 to 50 sec.

Residue by Distillation, or Evaporation - - - - 37.5 minimum

Pumping Stability test (2) - - - - Pass

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Tests on Residue from Distillation, or Evaporation

Viscosity ASTM 275°F (135°C) ASTM D-4402 - - - - 1750 cts max.

Solubility in 1,1,1 trichloroethylene ASTM D-2042 - - - - 97.5% min.

Penetration ASTM D-5 - - - - 50 dmm max.

Asphaltenes ASTM D-2007 - - - - 15% min.

Saturates ASTM D-2007 - - - - 15% max.

Polar Compounds ASTM D-2007 - - - - 25% min.

Aromatics ASTM D-2007 - - - - 15% min.

Modified Sealer Binder Content - - - - 20% min

(1) PH may be used in lieu of the particle charge test which is sometimes inconclusive in slow setting, bituminous emulsions.

(2) Pumping stability is tested by pumping 1 pint, (475 ml) of GSB-88® diluted 1 part concentrate to 1 part water, at 77°F (25°C), through a 1/4inch gear pump operating 1750 rpm for 10 minutes with no significant separation or coagulation.

Storage and Handling Instructions

GSB-88® is to be stored in vertical storage tanks and shall be handled like any standard asphalt emulsion. The storage tank should be equipped with a slow revolution mechanical agitator. Hot water heating coils, electrical coils, or electrical heaters are required in colder climates to prevent the emulsion from freezing. Positive displacement gear pumps should be used to transfer and apply GSB-88® materials. Storage and handling temperature are 50°F (10°C) to 160°F (71oC). GSB-88® should be protected from freezing, or whenever outside temperature drops below 40°F (4°C) for prolonged time periods.

Application Instructions

Equipment: GSB-88® is to be applied with standard bituminous distributors. The equipment must be in good working order, and contain no contaminants or dilutants in the tank. Spreader bar tips must be clean, free of burrs, and adjusted for regulated flow. Any type of tip or pressure source is suitable that will maintain predetermined flow rates and constant pressure during the application process. The equipment should be tested under pressure for leaks and to insure it is in working order before use. No special mixing equipment is necessary since GSB-88® concentrate may be easily diluted with water in the spreader tank.

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Dilution: GSB-88® concentrate must be diluted with water. Water for mixing shall be potable, with a maximum hardness of 90ppm calcium and 15ppm magnesium, and deleterious iron, sulfates, and phosphates maximum 7ppm, and less than 1ppm of organic byproducts. Ideally water shall be softened. Water shall be minimum 140F prior to adding to emulsion and shall be within 10F of emulsion temperature. Emulsion shall be 140F to 180F prior to adding water. Always add the water to the concentrate emulsion, never add concentrate emulsion to the water. Two dilution rates are recommended as follows:

• 1 part GSB-88® to 1 part water for most applications is recommended.

• 2 parts GSB-88® to 1 part water for use on hills where run off may be of concern, or on very rough surface texture pavements.

Polymer Addition: The polymer shall be a vinyl acrylic polymer approved for use by Asphalt Systems Inc. Consult Asphalt System's Technical Representative for specific details.

Rate of spread is normally determined by the texture, porosity, and age of the asphalt pavement to be sealed. Application rate can vary from 0.08 to 0.15 gallons per square yard (0.36 to 0.68 Liters to Square Meter). For 2:1 dilution, 0.08 to 0.12 gallons per square yard (0.36 to 0.54 Liters to square meter) is recommended. For 1: 1 dilution, 0.10 to 0.15 gallons per square yard (0.46 to 0.68 Liter to square meter) is recommended. Exceeding recommended application rates is not recommended without consulting Asphalt System's Technical Representative.

Addition of Sand:

Sanding should be done at the same time GSB-88® is applied. A hard, highly fractured sand should be used. Because there are regional differences in sand characteristics, a knowledgeable local pavement maintenance engineer should be consulted to insure that the appropriate amount and type of sand is chosen to regain any lost skid resistance. Sanding is best done by mounting a sand slinger on the applicator and applying approximately 0.25 to 1 .25 pounds of sand per square yard or more if necessary during the spreading process. The asphalt distributor truck will be equipped with an aggregate spreader mounted to the distributor truck that can apply sand to the emulsion in a single pass operation without driving through the wet emulsion. The aggregate spreader shall be equipped with a variable control system. Sand will be supplied by the government.

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ITEM 0005: GSB 78

Specifications:

GSB-78® Pavement Sealer and Rejuvenator is available in a ready to use form only. Shipment by 250 gallon Totes, bulk tank truck, or bulk ISO container may be arranged.

Specifications for GSB-78®:

Kinematic Viscosity at 60. C (140. F), cts. - - - - 21 0-30

Percent Water, Maximum. - - - - 0.5

Percent Residue by Distillation - - - - 30-45

Tests on Residue from Distillation:

Penetration at 25°C (77°F), dmm - - - - 2-12

Softening Point, of - - - - 180-200

HC1 Precipitation Value - - - - 18-25

Solubility in 1,1,1 Trichloroethylene, % - - - - 99 min.

Storage and Handling Instructions:

Either vertical or horizontal storage tanks may be used for the storage of GSB-78®. Under normal circumstances, GSB-78® does not require heating for use. Optimum product temperatures for use are 65°F (18°C) to 100°F (38°C). If GSB-78® is to be heated prior to use, or while in storage, use steam coils, hot water coils, or hot oil coils with hot oil circulating at less than 200°F (93°C). Electrical heating elements may also be used, but must be moisture and explosion resistant. Never use open flame or closed flame fire tube heaters with GSB-78®. GSB-78® should not be heated above 100°F (38°C).

During any heating process, GSB-78® should be stirred using a circulation pump, or mechanically agitated to prevent localized overheating. Positive displacement gear pumps are recommended for pumping GSB-78®. GSB-78® contains flammable ingredients and must therefore be labelled, and during transport must carry a 1999 placard. Allow no smoking or open flames within 100 feet of storage tanks, transport trucks, and application equipment containing GSB-78®. Electrical equipment used near GSB- 78® must be explosion resistant or explosion proof.

Application Instructions:

Equipment:

GSB-78® shall be applied with bituminous distributors. The equipment must be in good working order, and contain no contaminants or diluents in the tank prior to loading with GSB-78®. The application equipment must be capable of maintaining predetermined flow rates and constant pressure during

Page | 9 application. No special mixing equipment is required (see sanding below) as GSB-78® is ready to apply and will not separate or stratify in transit or storage.

Rate of Spread:

Rate of spread, or application rate for GSB-78® may vary from 0.10 to 0.15 gallons per square yard, (60 square feet per gallon to 90 square feet per gallon). Exceeding recommended application rates should not be done without first contacting a manufacturer's representative or responsible and knowledgeable pavement maintenance civil engineer.

Addition of Sand:

Sanding should be done at the same time GSB-78® is applied. A hard, highly fractured sand should be used. Because there are regional differences in sand characteristics, a knowledgeable local pavement maintenance engineer should be consulted to insure that the appropriate amount and type of sand is chosen to regain any lost skid resistance. Sanding is best done by mounting a sand slinger on the applicator and applying approximately 0.25 to 1 .25 pounds of sand per square yard or more if necessary during the spreading process. The asphalt distributor truck will be equipped with an aggregate spreader mounted to the distributor truck that can apply sand to the emulsion in a single pass operation without driving through the wet emulsion. The aggregate spreader shall be equipped with a variable control system. Sand will be supplied by the government.