W912QR22R0020_Specs_Vol2-0000.pdf

Solicitation For Various Airfield Paving & Lighting Projects - Grissom ARB, IN

(Repair: Taxiway C, Taxiway G, Runway & Shoulder, Overruns, Airfield Lighting Phase A & B)

P2: 484194, 484195, 472105, 484188, 484180, 484190

Design-Bid-Build

Specifications - Volume 2 of 2 Certified Final Design

16 December 2021

W912QR22R0020

ARIMS: 200A

Disposition: Maintain for 15yrs after construction

W912QR22R0020_Specs_Vol2-0000

CIVIL – AIRFIELD LIGHTINGCIVIL - AIRFIELD

ELECTRICAL – AIRFIELD LIGHTING

12/8/2021

P2# - 484195, 484188, 484194, 484190 - Various Projects at GARB Grissom Air Reserve Base, Indiana

PROJECT TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

00 80 00.00 06 02/20 SPECIAL PROVISIONS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 08/15 SUMMARY OF WORK

01 32 01.00 06 07/18 PROJECT SCHEDULE

01 33 00.00 06 04/2020 SUBMITTAL PROCEDURES

01 35 13 11/11 SPECIAL PROJECT PROCEDURES

01 35 26.00 06 GOVERNMENT SAFETY REQUIREMENTS

01 42 00 02/19 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.15 10 11/16 RESIDENT MANAGEMENT SYSTEM CONTRACTOR

MODE (RMS CM)

01 45 04.10 06 CONTRACTOR QUALITY CONTROL

01 50 00 11/20 TEMPORARY CONSTRUCTION FACILITIES AND

CONTROLS

01 57 19.00 06 04/20 TEMPORARY ENVIRONMENTAL CONTROLS AND

PERMITS

01 74 19 02/19 CONSTRUCTION WASTE MANAGEMENT AND

DISPOSAL

01 78 23 08/15, CHG 1: 11/20 OPERATION AND MAINTENANCE DATA

DIVISION 02 - EXISTING CONDITIONS

02 41 00 05/10 DEMOLITION

DIVISION 03 - CONCRETE

03 30 53 05/14 MISCELLANEOUS CAST-IN-PLACE CONCRETE

DIVISION 26 - ELECTRICAL

26 05 00.00 40 08/19 COMMON WORK RESULTS FOR ELECTRICAL

26 05 26.00 40 08/19 GROUNDING AND BONDING FOR ELECTRICAL

SYSTEMS

26 56 20 02/19 AIRFIELD AND HELIPORT LIGHTING AND

VISUAL NAVIGATION AIDS

DIVISION 27 - COMMUNICATIONS

27 21 10.00 40 05/16 FIBER OPTIC DATA TRANSMISSION SYSTEM

DIVISION 31 - EARTHWORK

31 00 00.00 06 07/18 EARTHWORK

31 05 19.13 02/21 GEOTEXTILE FOR SUBDRAIN

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 01 11.51 05/16 RUBBER AND PAINT REMOVAL FROM AIRFIELD

PAVEMENTS

32 01 13.63 02/16, CHG 1: 08/16 GILSONITE MODIFIED ASPHALT EMULSION

SEAL COATS

32 01 16.71 02/17 COLD MILLING ASPHALT PAVING

32 01 17.61 05/17 SEALING CRACKS AND JOINTS IN ASPHALT

PAVEMENT

PROJECT TABLE OF CONTENTS Page 1 Certified Final Submittal

32 01 18.71 05/17 GROOVING OF AIRFIELD PAVING

32 11 13.13 11/19 LIME TREATED SUBGRADE

32 11 20 08/17 SUBBASE COURSE (SEPARATION LAYER) FOR

RIGID AND FLEXIBLE PAVING

32 11 23 08/17 GRADED-CRUSHED AGGREGATE BASE COURSES

32 11 23.23 08/17 BASE COURSE DRAINAGE LAYERS

32 12 13 05/17 BITUMINOUS TACK COAT

32 12 15.13 11/20 ASPHALT PAVING FOR AIRFIELDS

32 13 14.13 08/19 CONCRETE PAVING FOR AIRFIELDS AND

OTHER HEAVY DUTY PAVEMENTS

32 13 73.19 11/19 COMPRESSION CONCRETE PAVING JOINT

SEALANT

32 17 23 08/16 PAVEMENT MARKINGS

32 92 19 08/17 SEEDING

DIVISION 33 - UTILITIES

33 05 23.13 11/13 UTILITY HORIZONTAL DIRECTIONAL DRILLING

33 40 00 02/10 STORM DRAINAGE UTILITIES

33 46 16 05/18 SUBDRAINAGE PIPING

33 71 02 02/15 UNDERGROUND ELECTRICAL DISTRIBUTION

DIVISION 34 - TRANSPORTATION

34 73 16 11/19 AIRFIELD GROUNDING

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 2

SECTION TABLE OF CONTENTS

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 32 01 11.51

RUBBER AND PAINT REMOVAL FROM AIRFIELD PAVEMENTS

05/16

PART 1 GENERAL

1.1 NOT USED

1.2 REFERENCES

1.3 ADMINISTRATIVE REQUIREMENTS

1.4 SUBMITTALS

1.5 MECHANICAL REMOVAL EQUIPMENT

1.5.1 Waterblasting Equipment

1.5.2 Sandblasting Equipment

1.5.3 Grinding or Scarifying Equipment

1.6 CHEMICAL REMOVAL EQUIPMENT

1.7 TEST SECTION

1.8 DELIVERY, STORAGE, AND HANDLING

1.9 PROJECT/SITE CONDITIONS

1.9.1 Environmental Requirements

1.9.2 Airfield Traffic Control

1.9.3 Radio Communication

1.9.4 Emergency Landing and Takeoff

1.9.5 Airfield Lighting

1.9.6 Water

1.10 SAFETY

PART 2 PRODUCTS

2.1 RUBBER AND PAINT REMOVAL DETERGENTS OR CHEMICALS

PART 3 EXECUTION

3.1 RUBBER AND PAINT REMOVAL

3.2 RATE OF REMOVAL

3.3 WATER PRESSURE

3.4 CLEANUP AND WASTE DISPOSAL

3.5 COMPLIANCE TESTING

3.6 DAMAGE REPAIR

-- End of Section Table of Contents --

32 01 11.51 Page 1

SECTION 32 01 11.51

RUBBER AND PAINT REMOVAL FROM AIRFIELD PAVEMENTS

05/16

PART 1 GENERAL

1.1 NOT USED

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910 Occupational Safety and Health Standards

1.3 ADMINISTRATIVE REQUIREMENTS

Submit a schedule of work to the Contracting Officer. Describe the work to be accomplished; noting the location of work, distances from the ends of runways, taxiways, buildings, and other structures; and indicating dates and hours during which the work will be accomplished. Schedule the work to conform to aircraft operating schedules. The Government will try to schedule aircraft operations so as to permit the maximum amount of time for the Contractor's work. However, in the event of any emergency, intense operational demands, adverse wind conditions, and other unforeseen difficulties, discontinue all work at locations in the aircraft operational area. Keep the approved schedule of work current and notify the Contracting Officer of any changes prior to beginning each day's work.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 .00 06 SUBMITTAL

PROCEDURES:

SD-01 Preconstruction Submittals

Schedule of work ; G

Rubber and Paint Removal Process Plan ; G

Waste Collection, Identification and Disposal Plan ; G

SD-03 Product Data

Mechanical rubber and paint removal equipment

Chemical rubber and paint removal equipment

Rubber and Paint Removal Detergents or Chemicals ; G

32 01 11.51 Page 2

SD-06 Test Reports

Test Section Results

1.5 MECHANICAL REMOVAL EQUIPMENT

Submit product data for mechanical rubber and paint removal equipment including area of coverage per pass, range of water pressures, and water tank capacity.

Mechanical removal equipment includes waterblasting, grinding or scarifying, or other approved non-chemical systems. Sandblasting may be used if approved by the Contracting Officer. Control the equipment used on asphalt or tar concrete to remove rubber and paint accumulations while minimizing disturbances to asphalt or tar mixtures. Control the equipment used on portland cement concretes to remove rubber and paint accumulations and prevent removal of hardened paste from the concrete. Basic hand tools and the following major types of mechanical equipment are considered acceptable for this project:

a. Waterblasting Equipment.

b. Grinding or Scarifying Equipment.

c. Sandblasting Equipment.

1.5.1 Waterblasting Equipment

Provide mobile waterblasting equipment capable of producing a pressurized stream of water that effectively removes rubber and paint from the pavement surface without significantly damaging the pavement. Provide equipment, tools, and machinery which are safe and and in good working order at all times. Provide equipment interlocks to prohibit high pressure water discharge when the vehicle or cleaning head is stationary (not moving forward or side to side).

1.5.2 Sandblasting Equipment

If approved by the Contracting Officer provide mobile sandblasting equipment capable of producing a pressurized stream of sand and air that effectively removes rubber and paint from the pavement surface without filling voids with debris in asphalt or tar pavements or removing joint sealants in portland cement concrete pavements. Include with the equipment an air compressor, hoses, and nozzles of adequate size and capacity for removing rubber and paint. Equip the compressor with traps and coalescing filters that maintain the compressed air free of oil and water.

1.5.3 Grinding or Scarifying Equipment

Provide equipment capable of removing surface contaminates, paint build-up, or extraneous markings from the pavement surface without leaving any residue. If a weed torch is used to remove paint, the surface must be cleaned by hydro blast afterwards to remove surface contaminates and ash.

1.6 CHEMICAL REMOVAL EQUIPMENT

Submit product data for chemical rubber and paint removal equipment . Use

32 01 11.51 Page 3 chemical equipment capable of applying and removing chemicals from the pavement surface while leaving only non-toxic biodegradable residue.

1.7 TEST SECTION

Prior to the start of work, remove rubber and paint on designated test areas not less than 50 feet in length under the supervision of the Contracting Officer . Use procedures, water pressures, nozzle height, nozzle spacings, nozzle angle, and equipment movement rate to achieve the required degree of rubber and paint removal in accordance with Paragraph RUBBER AND PAINT REMOVAL. Methods included in paragraph COMPLIANCE TESTING will be used to determine if the rubber and paint was successfully removed from the test section. The test will examine seven random locations within the test section. Submit the test section results before conducting any further removal work. Provide photos of seven random locations within the test area taken before and after the removal.

Provide photos of four random locations at joint seals within the test area taken before and after removal. The test section shall be approved by the Contracting Officer prior to rubber and paint removal of the areas indicated on the drawings.

1.8 DELIVERY, STORAGE, AND HANDLING

Deliver required materials in original manufacturer's containers labeled with appropriate EPA, OSHA, or other agency warnings, if applicable, and Safety Data Sheets. Protect materials from degrading until their use is required during execution of the work.

1.9 PROJECT/SITE CONDITIONS

1.9.1 Environmental Requirements

Ensure pavement surface is free of snow, ice or slush. Ensure surface temperature is at least 40 degrees F and rising at the beginning of operations except those involving sandblasting for which a lower surface temperature may be approved. Cease operation during thunder and lightning storms. Cease operation during rainfall except for waterblasting and removal of previously applied chemicals. Cease waterblasting where surface water accumulation alters the effectiveness of material removal.

1.9.2 Airfield Traffic Control

Coordinate performance of all work in the controlled zones of the airfield with the Contracting Officer and with the Flight Operations Officer or Airfield Manager. Neither equipment nor personnel can use any portion of the airfield without permission of these officers unless the runway is closed.

1.9.3 Radio Communication

No personnel or equipment will be allowed in the controlled zones of the airfield until radio contact has been made with the control tower and permission is granted by the control tower. A radio for this purpose is to be provided by the Contractor and approved by the Contracting Officer.

Maintain contact with the control tower at all times during work in vicinity of the airfield. Notify the control tower when work is completed and all personnel, equipment and materials have been removed from all aircraft operating surfaces.

32 01 11.51 Page 4

1.9.4 Emergency Landing and Takeoff

Emergencies take precedence over all operations. Upon notification from the Control Tower of an emergency landing or imminent takeoff, stop all operations immediately and evacuate all personnel and equipment to an area not utilized for aircraft traffic which is at least 250 feet measured perpendicular to and away from the near edge of the runway unless otherwise authorized by the Contracting Officer or the Contracting Officer's Representative. Equipment and chemicals or detergents as well as excess water must be able to clear the work area within 3 minutes.

1.9.5 Airfield Lighting

When night operations are necessary, provide all necessary lighting and equipment. Direct or shade lighting to prevent interference with aircraft, the air traffic control tower, and other base operations.

Provide lighting and related equipment capable of being removed from the runway within 15 minutes of notification of an emergency. Night work must be coordinated with the Flight Operations Manager or Airfield Manager and approved in advance by the Contracting Officer or authorized representative.

1.9.6 Water

Water to be used for high-pressure water equipment will be made available from Government hydrant at the prevailing rates. Furnish equipment and labor for delivery of water from the hydrant to the job site. Notify the Contracting Officer on location of fire hydrant to be used and the respective times of use. The Contracting Officer will notify the Fire Department of fire hydrants to be used and designated times of use.

Connections to a fire hydrant will be subject to the Contracting Officer's inspection and approval. The Contractor must provide and use a backflow prevention device for filling water tanks. The Contractor is responsible for testing, treating, and filtering the water to ensure it will not interfere with the rubber removal or damage or clog the rubber removal equipment.

1.10 SAFETY

Comply with OSHA 29 CFR 1910 .

PART 2 PRODUCTS

2.1 RUBBER AND PAINT REMOVAL DETERGENTS OR CHEMICALS

The use of environmentally acceptable detergents or chemical agents must be considered on a case-by-case basis. Submit the Safety Data Sheet (SDS) for detergents or chemicals in the rubber and paint removal process. Use of any detergents or chemicals in the rubber and paint removal process must be approved in advance by the Contracting Officer. The Government specifically reserves the right to reject the use of any process which the Contracting Officer determines may pose unnecessary risks to human health, the environment, the pavement, aircraft or NAVAIDS due to corrosion or foreign object damage (FOD) potential as a result of its use, storage, or disposal.

32 01 11.51 Page 5

PART 3 EXECUTION

3.1 RUBBER AND PAINT REMOVAL

Prior to any work being completed, submit a Rubber and Paint Removal Process Plan for approval by the Contracting Officer. Remove rubber and paint on all existing runway pavement to remain prior to application of new pavement markings. Rubber and paint shall also be removed prior to application of new markings where existing striping requires adjustment due to changes in the proposed layout and/or for meeting new markings.

Refer to Section 32 17 23 for pavement markings.

a. The pavement surface type is portland cement concrete and asphalt mixture as indicated.

b. Remove 90 percent of all visible rubber on portland cement concrete pavements and 85 percent of all visible rubber on asphaltic concrete pavements.

c. Chemical methods used must be compatible with pavement materials, the environment and working personnel.

d. Exercise close control of water pressure and blasting time/duration to prevent damage to joints, existing markings that are not intended for removal, or the wearing surface. Neither hydroblasting or abrasive blasting may be used for rubber removal on porous friction courses.

e. Demonstrate the ability to remove rubber at a touchdown area of the runway selected by the Contracting Officer; at least one site per runway will be chosen. Rubber removal must not damage the pavement surface. The surface texture of the cleaned demonstration area will be compared to that of non-rubber traffic areas to determine satisfactory completion of the removal operation.

f. After approval of the Contractor's operations by the Contracting Officer, the cleaned sample area will become the standard for rubber removal and final surface texture for the remainder of work.

g. Compliance testing for the amount of rubber and paint to be removed must conform to the requirements in paragraph COMPLIANCE TESTING.

3.2 RATE OF REMOVAL

Remove rubber at a minimum rate of 10,000 square feet per hour. Remove paint at a minimum rate of 1,000 square feet per hour. Do not permit high-pressure water application to remove the existing pavement surface, joint seals or crack seals.

3.3 WATER PRESSURE

Provide water pressure impact upon the indicated pavement areas sufficient to remove the designated rubber and paint to the required degree of removal without damaging the existing pavement, joint sealant, or other airfield appurtenances. The Contractor is responsible for repairing any damage caused by the removal work.

3.4 CLEANUP AND WASTE DISPOSAL

32 01 11.51 Page 6

Keep the worksite clean of by-products, debris and waste from rubber and paint removal operations. Perform cleanup operations continuously.

Remove all residue from the pavement. Obtain the approval of residue removal and disposal method from the Contracting Officer prior to beginning work. Submit a Waste Collection, Identification and Disposal Plan describing proposed actions regarding waste collection, control, identification, and disposal to the Contracting Officer's Representative for approval prior to the start of work. The plan will address disposal methods and requirements for hazardous and non-hazardous wastes.

3.5 COMPLIANCE TESTING

a. Compliance with the rubber and paint removal requirements must be determined by direct testing within the designated work area.

b. Use a one square foot section of transparent material inscribed with a grid of 100 equal squares as a tool for quantitative measure of the percent removal. Place the grid pattern on the pavement surface at random locations. Then count the squares which contain rubber and/or paint deposits. The number of squares containing rubber and/or paint deposits must not exceed the allowed percentage in each of the randomly selected locations.

c. Divide each work area designated for rubber and paint removal into at least four equal zones for the purpose of compliance testing. The layout of each zone must be approved by the Contracting Officer.

Within each zone, a minimum of seven random locations must be evaluated. The amount of rubber and paint removed at each of the randomly selected test locations within each zone must meet the requirement described in paragraph RUBBER AND PAINT REMOVAL. Evaluate each zone independently. A zone not meeting the required percentage must be recleaned by the Contractor at the Contractor's expense.

d. Deposits of rubber or rubber buildup and paint are defined as any surface deposit that can be removed by scratching the deposit with a flat sharp object (such as a pocket knife) without damaging the pavement surface. Stains are defined as materials in the pavement surface microtexture that cannot be removed without damaging the pavement surface. Stain is generally embedded in the surface of the pavement below the horizontal plane of the surface texture. The Contractor is not responsible for stain removal.

3.6 DAMAGE REPAIR

Repair any damage to the pavement surface, joint, joint and crack seals, or other Government property caused during the performance of the work at the Contractor's expense. Submit a repair plan to include methods and material to the Contracting Officer's Representative for approval prior to performance of the repairs. Complete the repairs within the performance period of the Contract.

-- End of Section --

32 01 11.51 Page 7

SECTION TABLE OF CONTENTS

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 32 01 13.63

GILSONITE MODIFIED ASPHALT EMULSION SEAL COATS

02/16, CHG 1: 08/16

PART 1 GENERAL

1.1 NOT USED

1.2 REFERENCES

1.3 SYSTEM DESCRIPTION

1.3.1 Equipment, Plant and Tools

1.3.2 Asphalt Distributors

1.3.3 Aggregate Spreader

1.3.4 Power Brooms and Power Blowers

1.3.5 Vacuum Sweepers

1.3.6 Equipment Calibration

1.4 SUBMITTALS

1.5 QUALITY ASSURANCE

1.5.1 Manufacturer's Representation

1.5.2 Samples

1.5.3 Aggregates Source

1.5.4 Gilsonite Modified Asphalt Emulsion Source

1.6 DELIVERY, STORAGE, AND HANDLING

1.7 ENVIRONMENTAL REQUIREMENTS

PART 2 PRODUCTS

2.1 GILSONITE MODIFIED ASPHALT EMULSION

2.2 AGGREGATE

2.2.1 Material Performance

2.2.2 MOHS Hardness

2.3 POLYMER

2.4 WATER

PART 3 EXECUTION

3.1 PREPARATION OF SURFACE

3.1.1 Cleaning Operations

3.1.2 Weather Limitations

3.1.3 Protection of Site Facilities

3.2 GILSONITE EMULSION MIXING

3.3 QUANTITIES OF MATERIAL PER SQUARE YARD

3.3.1 Application of Gilsonite Modified Asphalt Emulsion

3.3.2 Application of Aggregate

3.4 TEST SECTIONS AND AREAS

3.5 FIELD QUALITY CONTROL - SEAL COAT

3.5.1 Aggregate Gradation

3.5.2 Gilsonite Modified Asphalt Emulsion Sample

3.5.3 Water Compatibility Test

3.5.4 Application Inspection

3.6 TRAFFIC CONTROL

32 01 13.63 Page 1

-- End of Section Table of Contents --

32 01 13.63 Page 2

SECTION 32 01 13.63

GILSONITE MODIFIED ASPHALT EMULSION SEAL COATS

02/16, CHG 1: 08/16

PART 1 GENERAL

1.1 NOT USED

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM C117 (2017) Standard Test Method for Materials Finer than 75-um (No. 200) Sieve in Mineral Aggregates by Washing

ASTM C136/C136M (2019) Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

ASTM D5/D5M (2020) Standard Test Method for Penetration of Bituminous Materials

ASTM D75/D75M (2019) Standard Practice for Sampling Aggregates

ASTM D140/D140M (2016) Standard Practice for Sampling Asphalt Materials

ASTM D244 (2009; R 2017) Standard Test Methods and Practices for Emulsified Asphalts

ASTM D1474/D1474M (2013) Standard Test Method for Indentation Hardness of Organic Coatings

ASTM D2007 (2011) Standard Test Method for Characteristic Groups in Rubber Extender and Processing Oils and Other Petroleum-Derived Oils by the Clay-Gel Absorption Chromatographic Method

ASTM D2042 (2015) Standard Test Method for Solubility of Asphalt Materials in Trichloroethylene

ASTM D2995 (1999; R 2009) Determining Application Rate of Bituminous Distributors

ASTM D4402/D4402M (2015) Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer

32 01 13.63 Page 3

U.S. FEDERAL AVIATION ADMINISTRATION (FAA)

FAA AC 150/5320-12 (1997, Rev C; Change 1-3, 5 and 6) Measurement, Construction and Maintenance of Skid-Resistant Airport Pavement Surfaces

U.S. FEDERAL HIGHWAY ADMINISTRATION (FHWA)

MUTCD (2009; Rev 2012) Manual on Uniform Traffic Control Devices

1.3 SYSTEM DESCRIPTION

1.3.1 Equipment, Plant and Tools

Equipment, plant and tools used in the work are subject to Government approval and must be maintained in a satisfactory working condition at all times. Provide equipment which is adequate and has the capability of producing the results specified. Provide calibrated equipment, such as asphalt distributors, spreaders and similar equipment, that has been recalibrated by an approved calibration laboratory within 12 months prior to commencing work and every 6 months thereafter, by such laboratory from the date of recalibration, during the term of the contract. Submit an equipment list with calibration reports.

1.3.2 Asphalt Distributors

The emulsion must be applied with an equipment manufacturer-approved computer rate-controlled bituminous distributor. The equipment must be in good working order and contain no contaminants or diluents in the tank when product to be applied is added to the tank. Spreader bar tips must be clean, free of burrs, and of a size to maintain an even distribution of the emulsion. Any type of tip or pressure source is suitable that will maintain predetermined flow rates and constant pressure during the application process with application speeds under eight miles per hour or 700 feet per minute . Test the equipment under pressure for leaks and to ensure it is in good working order before use.

The distributor truck must be equipped with a 12 foot , minimum, spreader bar with individual nozzle control. The distributor truck must be capable of specific application rates in the range of 0.05 to 0.25 gallons per square yard . These rates must be computer-controlled rather than mechanical. The distributor truck must have an easily accessible thermometer that constantly monitors the temperature of the emulsion.

In the event of a temperature problem with the material, a distributor truck will be provided that is equipped to effectively heat and mix the material to the required temperature prior to application. Heating and mixing will be done in accordance with the manufacturer's recommendations. Care must be taken not to overheat or over mix the material.

The distributor must be equipped to hand spray the emulsion in areas identified either on the plans or by the Contracting Officer.

1.3.3 Aggregate Spreader

The asphalt distributor truck will be equipped with an aggregate spreader that can apply sand to the emulsion in a single pass operation without

32 01 13.63 Page 4 driving through wet emulsion. The aggregate spreader must be equipped with a variable control system capable of uniformly distributing the sand at the specified rate at varying application widths and speeds. Spinner type equipment will be acceptable. The sander must have a minimum hopper capacity of at least 3,000 pounds of sand. Push-type hand sanders will be allowed for use around lights, signs and other obstructions.

1.3.4 Power Brooms and Power Blowers

A power broom or blower must be provided for removing loose material from the surface to be treated.

1.3.5 Vacuum Sweepers

Provide self-propelled, vacuum pickup sweepers capable of removing loose sand, water, and debris from pavement surface.

1.3.6 Equipment Calibration

For the calibration of the aggregate spreader, only option b. is permitted unless aggregate spreader has been calibrated with the same aggregate within the last six months. Equipment calibration for emulsion may be achieved by either one of the two following procedures:

a. First Procedure: Contractor to furnish a State Calibration Certification for the asphalt emulsion distributor, from any state providing that service, or other acceptable agency certification at the approval of the Contracting Officer, and the calibration date must have been within 6 months of the contract award, or up to 12 months if supporting documents substantiate continuous work using the same distributor.

b. Second Procedure: Furnish all equipment, materials and labor necessary to calibrate the asphalt emulsion distributor and the aggregate spreader . Perform all calibrations with the approved job materials and prior to applying the specified coatings to the prepared surface. Perform calibration of the asphalt emulsion distributor in accordance with ASTM D2995. Perform work to calibrate the tank and measuring devices of the distributor. Perform inspection and calibration at the beginning of the work and at least once a day during construction.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submit the following in accordance with Section

01 33 00.00 06 SUBMITTAL PROCEDURES:

SD-03 Product Data

Contractor Qualifications ; G

Provide copies of Qualifications.

Manufacturer Representative’s Experience

32 01 13.63 Page 5

Material Performance

Equipment List ; G

List of equipment used in the project along with calibration reports.

Friction Test that includes date, time, weather, speed, wet or dry and operator name for each run of each test; G

Inspection Reports ; G

Provide reports and all Quality Assurance records daily when application is made.

SD-04 Samples

Gilsonite Modified Asphalt Emulsion

Aggregates

Provide in accordance with Field Quality Control.

SD-06 Test Reports

Manufacturer's Certificate of Compliance for Bituminous Material , Manufacturer's Certificate of Compliance for Aggregates

Recommendation by contractor/manufacturer from results of test section application.

Any additional testing as requested by Contracting Officer

Bituminous Materials ; G

1.5 QUALITY ASSURANCE

Provide copies of Contractor Qualifications for applicators, personnel and equipment, Certified by Manufacturer to apply product and to have made three (3) applications similar to this project in past two (2) years.

Include details of previous work, schedule adherence, quality of workmanship, materials and name and work phone of contracting officer's points of contact.

Obtain Manufacturer's Certificate of Compliance for emulsion and aggregates .

Obtain samples at time of delivery to the field as necessary to satisfy the requirements herein.

1.5.1 Manufacturer's Representation

The manufacturer’s representative must have knowledge of the material, procedures, and equipment described in the specification and must be responsible for determining the application rates and must oversee the preparation and application of the seal coat product. Documentation of the manufacturer representative’s experience and knowledge for applying the seal coat product must be furnished to the Contracting Officer a minimum of 10 work days prior to placement of the test sections. The cost of the manufacturer’s representative must be included in the bid price.

32 01 13.63 Page 6

1.5.2 Samples

Take aggregate samples for laboratory tests in accordance with ASTM D75/D75M. Take samples of gilsonite modified asphalt emulsion in accordance with ASTM D140/D140M.

1.5.3 Aggregates Source

Select sources from which aggregates are to be obtained and notify the Contracting Officer within 15 days after the award of the Contract.

Perform tests for the evaluation of aggregates by using an approved commercial laboratory at no expense to the Government. Tests for determining the suitability of aggregate must include: gradation in accordance with ASTM C136/C136M, and ASTM C117 and must be within the last six months. Independent laboratory testing is required for all new aggregate sources.

1.5.4 Gilsonite Modified Asphalt Emulsion Source

The Contractor must furnish the vendor’s certified test reports for bituminous materials , in its concentrated form, to the Contracting Officer, showing that the material meets the properties of Table 1.

Bituminous materials must meet the properties of Table 2 and Table 3.

1.6 DELIVERY, STORAGE, AND HANDLING

Deliver gilsonite modified asphalt emulsion to the site in a homogenous and undamaged condition. Inspect the materials for contamination and damage. Unload and store the materials with a minimum of handling.

Protect stored aggregate from contamination and segregation. Replace defective or damaged materials.

1.7 ENVIRONMENTAL REQUIREMENTS

Apply the coating when the existing surface is dry, and when the weather is not foggy, rainy, or when the wind velocity will prevent the uniform application of the material. Apply gilsonite modified asphalt emulsion seal coat only when both the atmospheric temperature and the pavement surface temperature are above 60 degrees F , unless otherwise directed.

PART 2 PRODUCTS

2.1 GILSONITE MODIFIED ASPHALT EMULSION

The bituminous material must be a gilsonite modified asphalt emulsion. The material must meet the following requirements of the applicable portions of Table 1, 2, and 3.:

Table 1: Concentrated Bituminous Material Properties

Properties Specification Limits

Saybolt Furol Viscosity at 77 deg F

ASTM D244 20-100 seconds

32 01 13.63 Page 7

Table 1: Concentrated Bituminous Material Properties

Properties Specification Limits

Residue by Distillation or Evaporation

ASTM D244 57 percent minimum

Sieve Test ASTM D244 0.1 percent maximum

24-hour Stability ASTM D244 1 percent maximum

5-day Settlement Test ASTM D244 5.0 pecent maximum

Particle Charge pH, cationic (see Note 1)

ASTM D244 Positive

6.5 percent maximum pH

Note 1: pH may be used in lieu of the particle charge test which is sometimes inconclusive in slow setting, bituminous emulsions.

The bituminous material concentrate must be diluted with heated water prior to application. The bituminous material, when diluted in the volumetric proportion of one part hot water to two parts concentrate must meet the requirements shown in Table 2.:

Table 2: 2 Part Bitumen : 1 Part Water Dilution Emulsion Properties (see Note 2)

Properties Specification Limits

Saybolt Furol Viscosity at 77 deg F

ASTM D244 10-50 seconds

Residue by Distillation or Evaporation

ASTM D244 38 percent minimum

Pumping Stability (see Note 3)

Pass

Note 2: In ready-to-apply form by volume.

Note 3: Pumping stability is tested by pumping 1 pint of diluted material at 77 deg F ,through a 1/4 inch gear pump operation 1,750 rpm for 10 minutes with no significant separation or coagulation.

The bituminous base residue must contain not less than 20 percent uintaite or gilsonite, and must not contain any tall oil pitch or coal tar material. This must be stated in the Manufacturer's Certificate of Compliance for bituminous material . The material must be compatible with asphaltic concrete, and have a 5-year minimum proven performance record at airports with similar climatic conditions. Curing time, under recommended application conditions, must not exceed eight hours.

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Table 3: Emulsion Residue by Distillation or Evaporation Tests

Properties Specification Limits

Viscosity at 275 deg F ASTM D4402/D4402M1,750 cts maximum

Solubility in 1, 1, 1 trichloroethylene

ASTM D2042 97.5 minimum

Penetration ASTM D5/D5M 50 dmm maximum

Asphaltenes ASTM D2007 15 percent minimum

Saturates ASTM D2007 15 percent maximum

Polar Compounds ASTM D2007 25 percent minimum

Aromatics ASTM D2007 15 percent minimum

The Contractor must furnish vendor's certified test reports showing that the material is the type, grade and quality specified for each load of bituminous material delivered to the project. The certification must also show the shipment number, refinery, consignee, destination, contract number and date of shipment. The test reports and certification must be delivered to the Contracting Officer before permission is granted to use the material. The furnishing of the vendor's certified test report for the bituminous material must not be interpreted as a basis for final acceptance. The manufacturer's material test report certification may be subject to verification by testing the material delivered for use on the project.

The bituminous material storage and handling temperature must be between 50 deg F - 160 deg F and the material must be protected from freezing, or whenever outside temperature drops below 40 deg F for prolonged time periods.

2.2 AGGREGATE

The aggregate material must be a dry, clean, dust and dirt free, sound, durable, angular shaped manufactured specialty sand, such as that used as an abrasive, with a Mohs hardness of 6 to 8. The Contractor must submit manufacturer’s technical data and a manufacturer’s certification indicating that the specialty sand meets the requirements of the specification to the Contracting Officer prior to start of construction.

The sand must be approved for use by the Contracting Officer and must meet the following gradation limits when tested in accordance with ASTM C136/C136M and ASTM C117:

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Table 4: Aggregate Material Gradation Requirements

Sieve Size By Weight Min/Max

No. 8 0

No. 16 0-8

No. 30 20-78

No. 50 10-85

No. 100 0-7

No. 200 0-2

The Contractor must submit gradation and manufacturer's specification for review at or prior to the pre -construction conference for approval. The gradations in the chart represent the limits in determining aggregate source suitability for use in the bituminous surface treatment. The final gradations approved, within the limits designated in Table 4, must provide sufficient friction levels to meet the Minimum Friction Level in Table 3-2, "Friction Level Classification for Runway Pavement Surfaces" of

FAA AC 150/5320-12 .

2.2.1 Material Performance

Friction tests previously performed in accordance with FAA Advisory Circular, FAA AC 150/5320-12, at 40 and 60 mph-wet, must be submitted showing, as a minimum; friction value of pavement surface prior to sealant application; two values, test between 24 and 96 hours after application, with a minimum of 24 hours between tests; and one value test at no less than 90 days or greater than 360 days after the application. The results of the two tests between 24 and 96 hours must indicate friction is increasing at a rate to obtain similar friction value on the 90th day as the orginal friction value, and the long term test must indicate no apparent adverse effect with time relative to friction values and existing pavement surface.

The contractor must submit a list of airports which meet the above requirements, as well as technical details on application rates, aggregate rates, and point of contact at these airports to confirm use and success of sealer with aggregate. Friction tests must be submitted from no less than one of the airports on the list and each set of tests described above, must be from one project.

Seal coat material submittal without required friction performance will not be approved. Friction tests performed on this project, if any, cannot be used as a substitute of this requirement.

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2.2.2 MOHS Hardness

MOHS hardness must be within 6-8 in accordance with ASTM D1474/D1474M .

2.3 POLYMER

Vinyl acrylic polymer must be approved for use by the manufacturer of the bituminous material for compatibility and must meet the requirements provided in Table 5:

Table 5: Polymer Properties

Properties Limits

Solids Content 52-57 percent by weight

Weight 8.4-9.4 pounds per gallon pH 4.0 to 6.0

Particle Charge Nonionic/Anionic

Mechanical Stability Excellent

Film Forming Temperature 41 deg F , minimum

Tg 71.6 deg F, maximum

The Contractor must submit manufacturer's specifications for the vinyl acrylic polymer with the bituminous materials submittal for review and approval.

2.4 WATER

Water used in diluting the emulsion must be potable, free from harmful soluble salts and chemicals, and at least 100 deg F .

PART 3 EXECUTION

3.1 PREPARATION OF SURFACE

Provide Inspection Reports of; air and surface temperature during application of seal coat, emulsion temperature and rate of application, dilution rate used, adequacy of surface cleaning and preparation, aggregate rate of application, and protection of site facilities as applicable, each day of application.

Repair and patch all major pavement defects in accordance with Section

32 01 17.61 REPAIRING AND SEALING CRACKS AND SAWING AND SEALING JOINTS IN

ASPHALT PAVING. All cracks sealed with a joint sealant compatible with the emulsion prior to application of the emulsion.

3.1.1 Cleaning Operations

Provide a clean surface for the seal coat. If considered necessary by the manufacturer's representative and is approved by the Contracting Officer, 32 01 13.63 Page 11 flushing with water will be permitted. Water will be made available for the contractor's use from a hydrant on the base at prevailing Government rates. The contractor must provide tools, hoses and hauling equipment for providing and dispensing of the water.

Immediately before applying the sealcoat, the asphalt surface to be treated must be free of all dirt, sand, vegetation, loose paint, excessive oil or grease, rubber deposits or other objectionable material. The surface must be cleaned with a power broom or power blower supplemented by hand sweeping or any other means required to remove deleterious matter to the satisfaction of the Contracting Officer.

3.1.2 Weather Limitations

The asphalt emulsion shall be applied only when the existing pavement surface is dry and when the weather is not foggy, rainy, or when the wind velocity will prevent the uniform application of the material. No material shall be applied when dust or sand is blowing or when rain is anticipated within eight hours of application completion. The atmospheric temperature and the pavement surface temperature shall both be above 60 deg F . During application, account for wind drift.

3.1.3 Protection of Site Facilities

Cover existing buildings, structures, runway edge lights, taxiway edge lights, informational signs, retro-reflective marking and in-pavement duct markers as necessary before applying the emulsion. Should emulsion get on any light or marker, clean property promptly. If cleaning is not satisfactory to the Contracting Officer, the Contractor must replace any light, sign or marker with equivalent equipment at no cost to the Government.

3.2 GILSONITE EMULSION MIXING

The application emulsion must be obtained by blending bituminous material concentrate , polymer and water. Always add heated water to the bituminous material concentrate; never add bituminous material concentrate to heated water. Add one percent polymer, by volume, to the emulsion mix. If the polymer is added to the emulsion mix at the plant, submit weigh scale tickets to the Contracting Officer. As an option, the polymer may be added to the emulsion mix at the job site provided the polymer is added while the circulating pump is running. The mix must be agitated for a minimum of 15 minutes or until the polymer is mixed to the satisfaction of the Contracting Officer.

3.3 QUANTITIES OF MATERIAL PER SQUARE YARD

The approximate amounts of materials per square yard for the bituminous surface treatment must be as provided in Table 6 for the treatment area(s) at the specified dilution rate(s) as noted on the plans. The exact amounts to be used must be determined by the results of the test section program as directed by the Contracting Officer. Pavements with more progressive deterioration issues may require heavier than normal application rates for emulsion and aggregate. In such cases a manufacturer's representative should be consulted as directed by the Contracting Officer.

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Table 6: Application Rate

Dilution Rate Gilsonite Modified Asphalt Emulsion gal/yd2

Quantity of Aggregate lbs/yd2

2:1 Gilsonite Modified Asphalt Emulsion

0.08-0.12 0.20-0.50

3.3.1 Application of Gilsonite Modified Asphalt Emulsion

The emulsion must be applied upon the properly prepared, clean and dry surface at the application rate approved by the Contracting Officer for each designated treatment area. The emulsion temperature must be at a temperature at or above 130 deg F , but not exceeding 160 deg F or in accordance with the manufacturer's recommendation using a pressure distributor to obtain uniform distribution at all points.

During all applications, the surfaces of adjacent structures must be protected in such manner as to prevent their being spattered or marred.

Bituminous materials must not be discharged into borrow pits or gutters or upon the airport area.

3.3.2 Application of Aggregate

The emulsion, along with sand at the rate specified for each designated application area must be spread uniformly over the emulsion in a single pass from a sanding attachment to the asphalt distributor. The aggregate must be spread in the same width of application as the bituminous material and must not be applied in such thickness as to cause overspreading.

Sprinkling of additional aggregate material, and spraying additional bituminous material over areas that show up having insufficient cover or bitumen, must be done by hand whenever necessary. In areas where hand work is necessitated, the sand must be applied before the sealant begins to break.

Sanding must be performed in a manner so as to prevent appreciable amounts of sand from going onto any pavement prior to the emulsion being applied.

The Contractor must clean up areas with excess or loose sand and dispose of off airport property.

3.4 TEST SECTIONS AND AREAS

Prior to production seal coating applying the seal coat, place up to 3 test sections at a location determined by the Contracting Officer approximately 50 feet long by a minimum of 8 feet wide in a single pass of equipment using the approved job materials in accordance with the specification requirements, unless noted otherwise. Perform tests to determine the application rates of the asphalt emulsion and aggregate .

Test sections must be performed on pavement areas that are not considered critical to operations. Vary the application rates along the longitudinally along the test section in order to effectively evaluate the pavement absorption rates. If the tests indicate that the seal coat test section does not conform to the specification requirements, make necessary adjustments to the application equipment and to the spreading procedures, and construct additional test sections for conformance to the specifications. Where test sections do not conform to specification

32 01 13.63 Page 13 requirements, repair or remove seal coat at no expense to the Government;

no separate payment will be made for seal coat materials and labor, either in placement or removal of any test section. Removal of seal coat must be performed only if 500 feet of length or greater on a runway surface do not meet the friction requirements of FAA AC 150/5320-12 . Perform quality control sampling and testing during construction as specified in paragraph FIELD QUALITY CONTROL. Test sections must be performed in the presence of the Contracting Officer and the Seal Coat Manufacturer's Representative (SCMR). Notify the Contracting Officer 7 days prior to the planned test section date. The SCMR must recommend to the Contracting Officer application rates of materials used in production seal coating. The Contracting Officer must approve the application rates prior to production seal coating.

A qualified manufacturer's representative must be present in the field to assist the Contractor in applying test areas or test sections to determine the optimum rate of application of both sealant and sand .

A test area or section must be applied for each differing HMA pavement surface identified in the project. The test area or sections must be used to determine the material application rate(s) of both sealant and sand prior to full production. The same equipment and method of operations must be utilized on the test section(s) as will be utilized on the remainder of the work.

a. For Taxiway, Taxilane and Apron Surfaces - Prior to full application, the Contractor must place test areas at application rate(s) stipulated by the Contracting Officer or judged necessary by the manufacturer's representative to determine proper application rate. The area to be tested will be designated by the Contracting Officer and will be located on a representative section of the pavement to receive the bituminous surface coat.

If the test area should prove to be unsatisfactory, necessary adjustments to the application rate, placement operations, and equipment must be made. Additional test areas must be placed and evaluated, if required. Full production must not begin without the Contracting Officer's approval.

b. For Runway and High Speed Taxiway Exit Surfaces - If friction test ing is required by the contract, the Contractor will test according to FAA AC 150/5320-12 . The contractor must place a series of friction test sections a minimum of 300 feet long by 8 feet wide at application rate(s) determined by application test sections and areas. The area to be tested will be located on a representative section of the pavement to receive the bituminous surface coat.

The Contractor must perform tests for skid resistance of the test sections after a time frame determined by the contractor, manufacturers representative (if present), and the Contracting Officer. Full application can proceed when the results of the friction evaluation are equal to or greater than the Maintenance Minimum levels provided in Table 3-2, "Friction Level Classification for Runway Pavement Surfaces," in FAA AC 150/5320-12 . Documentation will be provided by the manufacture that demonstrates a history of rapid increase of pavement friction to above Maintenance Planning levels provided in Table 3-2 and returning to pre-application numbers shortly thereafter.

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If the test section should prove to be unsatisfactory, necessary adjustments to the application rate, placement operations, and equipment must be made. Additional test sections must be placed and evaluated, if required. Full production must not begin without the Contracting Officer's approval.

3.5 FIELD QUALITY CONTROL - SEAL COAT

3.5.1 Aggregate Gradation

Perform gradation tests in accordance with ASTM C136/C136M when directed by the Contracting Officer. When the source of materials is changed or deficiencies are found, the gradation must be repeated and the material already placed must be retested to determine the extent of the unacceptable material where friction issues exist. Replace all in-place unacceptable material or re-apply seal coat material conforming to the specification as directed by Contracting Officer at no additional expense to the Government.

3.5.2 Gilsonite Modified Asphalt Emulsion Sample

Obtain a sample of the asphalt emulsion used under the supervision of the Contracting Officer. The sample will be retained by the contractor until the completion of the project and must be turned over to the government upon request of the Contracting Officer.

3.5.3 Water Compatibility Test

In some localities an incompatibility may exist between the asphalt emulsion and the water to be used for dilution due to their characteristics. Clear, potable water should be used. No less than thirty days prior to commencing work, one half pint of the proposed asphalt emulsion and one half pint of the proposed water must be combined, agitated, and allowed to sit for a period of 24 hours to test their compatibility. If they prove to be incompatible, indicated by separation of the emulsion, clotting, particles settling or other adverse properties from mixing with water, an approved chemical treatment must be provided for all water used for dilution or a different and compatible source of water must be selected. Report results to the Contracting Officer.

3.5.4 Application Inspection

Inspect application of seal coat for uniformity. Furnish a written report within 24 hours of testing citing air and surface temperature during application, emulsion temperature during application, dilution rate, and rate of emulsion application determined from testing compared to the…