Attach 4.5 UFGS 32 17 23.pdf

SECTION 32 17 23 Page 1

Revised March 23rd 2021

USACE / NAVFAC / AFCEC / NASA UFGS-32 17 23 (August 2016)

Change 5 - 11/18

Preparing Activity: USACE Superseding UFGS-32 17 23.00 20 (April 2006) UFGS-32 17 24.00 10 (April 2008)

UNIFIED FACILITIES GUIDE SPECIFICATIONS

References are in agreement with UMRL dated January 2021

SECTION TABLE OF CONTENTS

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 32 17 23

PAVEMENT MARKINGS

08/16, CHG 5: 11/18

PART 1 GENERAL

1.1 UNIT PRICES

1.1.1 Measurement

1.1.1.1 Surface Preparation

1.1.1.2 Pavement Striping and Markings

1.1.1.3 Raised Pavement Markers

1.1.1.4 Removal of Pavement Markings on Roads and Automotive

Parking Areas

1.1.2 Payment

1.2 REFERENCES

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Regulatory Requirements

1.4.2 Qualifications

1.4.3 Qualifications For Airfield Marking Personnel

1.5 DELIVERY AND STORAGE

1.6 PROJECT/SITE CONDITIONS

1.6.1 Environmental Requirements

1.6.1.1 Weather Limitations for Application

1.6.1.2 Weather Limitations for Removal of Pavement Markings on

Roads and Automotive Parking Areas

1.6.2 Traffic Controls

1.6.3 Airfield Traffic Control

1.6.4 Airfield Radio Communication

1.6.5 Airfield Emergency Landing and Takeoff

1.6.6 Lighting

PART 2 PRODUCTS

2.1 EQUIPMENT

2.1.1 Surface Preparation and Paint Removal

2.1.1.1 Surface Preparation and Paint Removal Equipment for

Airfield Pavements

SECTION 32 17 23 Page 2

2.1.1.2 Surface Preparation Equipment for Roads and Automotive Parking Areas

2.1.1.2.1 Sandblasting Equipment

2.1.1.2.2 Waterblasting Equipment

2.1.1.2.3 Shotblasting Equipment

2.1.1.2.4 Grinding or Scarifying Equipment

2.1.1.2.5 Chemical Removal Equipment

2.1.2 Application Equipment

2.1.2.1 Paint Application Equipment

2.1.2.1.1 Hand-Operated, Push-Type Machines

2.1.2.1.2 Self-Propelled or Mobile-Drawn Spraying Machines

2.1.2.1.2.1 Road Marking

2.1.2.1.2.2 Airfield Marking

2.1.2.1.2.3 Hand Application

2.1.2.2 Thermoplastic Application Equipment

2.1.2.2.1 Thermoplastic Material

2.1.2.2.2 Application Equipment

2.1.2.2.3 Mobile Application Equipment

2.1.2.2.4 Portable Application Equipment

2.1.2.3 Reflective Media Dispenser

2.1.2.4 Preformed Tape Application Equipment

2.2 MATERIALS

2.2.1 Waterborne Paint

2.2.2 Solventborne Paint

2.2.3 Methacrylate Paint

2.2.4 Epoxy Paint

2.2.4.1 Formulation

2.2.4.2 Composition

2.2.4.3 Epoxide Value

2.2.4.4 Total Amine Value

2.2.4.5 Toxicity

2.2.4.6 Daylight Directional Reflectance

2.2.4.7 Laboratory Drying Time

2.2.4.8 Curing

2.2.4.9 Adhesion to Concrete

2.2.4.10 Hardness

2.2.4.11 Abrasion Resistance

2.2.4.12 Tensile Strength

2.2.4.13 Compressive Strength

2.2.5 Thermoplastic Compound

2.2.5.1 Composition Requirements

2.2.5.2 Primer

2.2.6 High Build Acrylic Coating (HBAC)

2.2.7 Preformed Tape

2.2.8 Raised Pavement Markers Primers and Adhesives

2.2.9 Reflective Media

2.2.9.1 Reflective Media for Airfields

2.2.9.2 Reflective Media for Roads

PART 3 EXECUTION

3.1 EXAMINATION

3.1.1 Testing for Moisture

3.1.2 Surface Preparation Demonstration

3.1.3 Test Stripe Demonstration

3.1.4 Application Rate Demonstration

3.1.5 Retroreflective Value Demonstration

3.1.6 Level of Performance Demonstration

3.2 EXTERIOR SURFACE PREPARATION

SECTION 32 17 23 Page 3

3.2.1 Early Painting of Rigid Pavements

3.2.2 Early Painting of Asphalt Pavements

3.3 APPLICATION

3.3.1 Paint

3.3.1.1 Waterborne Paint

3.3.1.1.1 Airfields

3.3.1.1.2 Roads

3.3.1.2 Solventborne Paint

3.3.1.3 Methacrylate Paint

3.3.1.4 Epoxy Paint

3.3.1.5 High Build Acrylic Coating

3.3.2 Thermoplastic Compound

3.3.2.1 Primer

3.3.2.2 Reflective Media

3.3.3 Raised Pavement Markers

3.3.4 Preformed Tape

3.3.5 Cleanup and Waste Disposal

3.4 FIELD QUALITY CONTROL

3.4.1 Sampling and Testing

3.4.2 Material Inspection

3.4.3 Dimensional Tolerances

3.4.4 Bond Failure Verification

3.4.5 Reflective Media and Coating Application Verification

3.4.6 Retroreflective Markings

3.4.7 Material Bond Verification and Operations Area Cleanup for

Airfields

-- End of Section Table of Contents --

SECTION 32 17 23 Page 4

USACE / NAVFAC / AFCEC / NASA UFGS-32 17 23 (August 2016)

Change 5 - 11/18

Preparing Activity: USACE Superseding UFGS-32 17 23.00 20 (April 2006) UFGS-32 17 24.00 10 (April 2008)

UNIFIED FACILITIES GUIDE SPECIFICATIONS

References are in agreement with UMRL dated January 2021

SECTION 32 17 23

PAVEMENT MARKINGS

08/16, CHG 5: 11/18

NOTE: This guide specification covers pavement marking requirements for airfields, heliports, in hangars, roads and Automotive Parking areas by means of paint, raised pavement markers (RPM), preformed tapes or plastics. If curbs, obstructions, and other appurtenant structures are included in the work area, the same general requirements apply, but hand application with spray guns and manual bead dispensers may be required. This guide specification also covers removal of existing pavement markings on roads and Automotive Parking areas. UFGS 32 01 11.51 covers removal of rubber and pavement markings on airfield pavements.

Removal of raised pavement markers or reflectors is not covered in this section.

PART 1 GENERAL

1.1 UNIT PRICES

1.1.1 Measurement

1.1.1.1 Surface Preparation- Included in overall bid price.

1.1.1.2 Pavement Striping and Markings

The unit of measurement for pavement markings is the number of linear feet, square meters/feet, and/or per each, of reflective and/or non-reflective striping or markings actually completed and accepted by the Contracting Officer.

1.1.1.3 Raised Pavement Markers- This section not used.

1.1.1.4 Removal of Pavement Markings on Roads and Automotive Parking Areas-

Included in overall bid price.

SECTION 32 17 23 Page 5

1.1.2 Payment

The quantities of surface preparation, pavement striping or markings, raised pavement markers, and removal of pavement markings determined as specified in paragraph Measurement, will be paid for at the contract unit price. The payment constitutes full compensation for furnishing all labor, materials, tools, equipment, appliances, and doing all work involved in preparing and marking the pavements as shown on the drawings.

Remove and replace any striping or markings which required reflective media, but are placed without it, do not meet the stated minimum retro-reflective requirements, or with other defects, at no cost to the Government. Remove and replace striping or markings which do not conform to the required physical characteristics, alignment or location required at no cost to the Government.

1.2 REFERENCES

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

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO M 247 (2013) Standard Specification for Glass

Beads Used in Pavement Markings

AASHTO M 248 (1991; R 2012) Standard Specification for

Ready-Mixed White and Yellow Traffic Paints

AASHTO M 249 (2012; R2016) Standard Specification for White and Yellow Reflective Thermoplastic Striping Material (Solid Form)

ASTM INTERNATIONAL (ASTM)

ASTM D471 (2016a) Standard Test Method for Rubber

Property - Effect of Liquids

ASTM D476 (2015) Dry Pigmentary Titanium Dioxide Pigments

ASTM D522/D522M (2017) Mandrel Bend Test of Attached

Organic Coatings

ASTM D638 (2014) Standard Test Method for Tensile Properties of Plastics

ASTM D695 (2010) Standard Test Method for

Compressive Properties of Rigid Plastics

ASTM D711 (2010; R 2015) No-Pick-Up Time of Traffic Paint

ASTM D823 (2018) Standard Practices for Producing

Films of Uniform Thickness of Paint, Coatings, and Related Products on Test Panels

SECTION 32 17 23 Page 6

ASTM D1652 (2011; E 2012) Standard Test Method for Epoxy Content of Epoxy Resins

ASTM D2074 (2007; R2013) Standard Test Methods for

Total, Primary, Secondary, and Tertiary Amine Values of Fatty Amines by Alternative Indicator Method

ASTM D2240 (2015; E 2017) Standard Test Method for

Rubber Property - Durometer Hardness

ASTM D2621 (1987; R 2016) Standard Test Method for Infrared Identification of Vehicle Solids from Solvent-Reducible Paints

ASTM D2697 (2003; R 2014) Volume Nonvolatile Matter in Clear or Pigmented Coatings

ASTM D3335 (1985a; R 2020) Low Concentrations of Lead, Cadmium, and Cobalt in Paint by Atomic Absorption Spectroscopy

ASTM D3718 (1985a; R 2015) Low Concentrations of

Chromium in Paint by Atomic Absorption Spectroscopy

ASTM D3924 (2016) Standard Specification for

Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials

ASTM D3960 (2005; R 2013) Determining Volatile

Organic Compound (VOC) Content of Paints and Related Coatings

ASTM D4060 (2019) Abrasion Resistance of Organic

Coatings by the Taber Abraser

ASTM D4061 (2013) Standard Test Method for Retroreflectance of Horizontal Coatings

ASTM D4280 (2012) Extended Life Type, Nonplowable, Raised, Retroreflective Pavement Markers

ASTM D4383 (2012) Standard Specification for Plowable, Raised Retroreflective Pavement Markers

ASTM D4505 (2012; R 2017) Standard Specification for

Preformed Retroflective Pavement Marking Tape for Extended Service Life

ASTM D4541 (2017) Standard Test Method for Pull-Off

Strength of Coatings Using Portable Adhesion Testers

ASTM D6628 (2003; R 2015) Standard Specification for

Color of Pavement Marking Materials

ASTM D7234 (2012) Standard Test Method for Pull-Off Adhesion Strength of Coatings on Concrete

SECTION 32 17 23 Page 7

Using Portable Pull-Off Adhesion Testers

ASTM E1347 (2006; R 2020) Standard Test Method for Color and Color Difference Measurement by Tristimulus (Filter) Colorimetry

ASTM E1710 (2011) Standard Test Method for

Measurement of Retroreflective Pavement Marking Materials with CEN-Prescribed Geometry Using a Portable Retroreflectometer

ASTM E2177 (2011) Standard Test Method for Measuring the Coefficient of Retroreflected Luminance (RL) of Pavement Markings in a Standard Condition of Wetness

ASTM E2302 (2003; R 2016) Standard Test Method for

Measurement of the Luminance Coefficient Under Diffuse Illumination of Pavement Marking Materials Using a Portable Reflectometer

ASTM G154 (2016) Standard Practice for Operating

Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials

SECTION 32 17 23 Page 8

INTERNATIONAL CONCRETE REPAIR INSTITUTE (ICRI)

ICRI 03732 (1997) Selecting and Specifying Concrete Surface Preparation for Sealers, Coatings, and Polymer Overlays

MASTER PAINTERS INSTITUTE (MPI)

MPI 32 (2012) Traffic Marking Paint, S.B.

MPI 97 (2012) Traffic Marking Paint, Latex

SOCIETY OF AUTOMOTIVE ENGINEERS INTERNATIONAL (SAE)

SAE AMS-STD-595A (2017) Colors used in Government Procurement

U.S. FEDERAL AVIATION ADMINISTRATION (FAA)

FAA AC 150/5370-10 (2018; Rev H; Errata 1 2019) Standard

Specifications for Construction of Airports

U.S. FEDERAL HIGHWAY ADMINISTRATION (FHWA)

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

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

FS TT-B-1325 (Rev D; Notice 1; Notice 2 2017) Beads

(Glass Spheres) Retro-Reflective (Metric)

FS TT-P-1952 (2015; Rev F; Notice 1) Paint, Traffic and Airfield Markings, Waterborne

1.3 SUBMITTALS

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-03 Product Data

Surface Preparation Equipment List

Application Equipment List

Exterior Surface Preparation

Safety Data Sheets

Reflective media for airfields-if applicable

Reflective media for roads

Waterborne Paint

Solvent borne Paint

Thermoplastic compound

SECTION 32 17 23 Page 9

QUALITY ASSURANCE

1.3.1 Regulatory Requirements

Submit certificate stating that the proposed pavement marking paint meets the Volatile Organic Compound, (VOC) regulations of the local Air Pollution Control District having jurisdiction over the geographical area in which the project is located. Submit Safety Data Sheets for each product.

1.3.2 Qualifications

Submit documentation certifying that pertinent personnel are qualified for equipment operation and handling of applicable chemicals. The documentation should include experience on five projects of similar size and scope.

1.3.3 Qualifications For Airfield Marking Personnel- if applicable

Submit documentation of qualifications in resume format a minimum of 14 days before pavement marking work is to be performed showing personnel who will be performing the work have experience working on airfields, operating mobile self-powered marking, cleaning, and paint removal equipment and performing these tasks. Include with resume a list of references complete with points of contact and telephone numbers.

Provide certification for pavement marking machine operator and Foreman demonstrating experience successfully completing a minimum of two airfield pavement marking projects of similar size and scope. Provide documentation demonstrating personnel have a minimum of two years of experience operating similar equipment and performing the same or similar work in similar environments, similar in size and scope of the planned project.

The Contracting Officer reserves the right to require additional proof of competency or to reject proposed personnel.

1.4 DELIVERY AND STORAGE

Deliver paint materials, thermoplastic compound materials, and reflective media in original sealed containers that plainly show the designated name, specification number, batch number, color, date of manufacture, manufacturer's directions, and name of manufacturer.

1.5 PROJECT/SITE CONDITIONS

1.5.1 Environmental Requirements

1.5.1.1 Weather Limitations for Application

Apply pavement markings to clean, dry surfaces, and unless otherwise approved, only when the air and pavement surface temperature is at least 3 degrees C 5 degrees F above the dew point and the air and pavement temperatures are within the limits recommended by the pavement marking manufacturer. Allow pavement surfaces to dry after water has been used for cleaning or rainfall has occurred prior to striping or marking. Test the pavement surface for moisture before beginning work each day and after cleaning. Employ the "plastic wrap method" to test the pavement for moisture as specified in paragraph TESTING FOR MOISTURE.

SECTION 32 17 23 Page 10

1.5.1.2 Weather Limitations for Removal of Pavement Markings on Roads and Automotive Parking Areas

Pavement surface must be free of snow, ice, or slush; with a surface temperature of at least 4 degrees C 40 degrees F and rising at the beginning of operations, except those involving shot or sand blasting or grinding. Cease operation during thunderstorms, or during rainfall, except for waterblasting and removal of previously applied chemicals.

Cease waterblasting where surface water accumulation alters the effectiveness of material removal.

1.5.2 Traffic Controls

Place warning signs conforming to MUTCD near the beginning of the worksite and well ahead of the worksite for alerting approaching traffic from both directions. Place small markers along newly painted lines or freshly placed raised markers to control traffic and prevent damage to newly painted surfaces or displacement of raised pavement markers. Mark painting equipment with large warning signs indicating slow-moving painting equipment in operation.

When traffic must be rerouted or controlled to accomplish the work, provide necessary warning signs, flag persons, and related equipment for the safe passage of vehicles.

1.5.3 Airfield Traffic Control- This section not used.

1.5.4 Airfield Radio Communication- This section not used.

1.5.5 Airfield Emergency Landing and Takeoff- This section not used.

1.5.6 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.] The Government reserves the right to accept or reject night work on the day following night activities by the Contractor.

PART 2 PRODUCTS

2.1 EQUIPMENT

2.1.1 Surface Preparation and Paint Removal

2.1.1.1 Surface Preparation and Paint Removal Equipment for Airfield Pavements- This section not used.

2.1.1.2 Surface Preparation Equipment for Roads and Automotive Parking Areas

Submit a surface preparation equipment list by type, model, and manufacturer. Mobile equipment must allow for removal of markings without damaging the pavement surface or joint sealant. Maintain machines, tools, and equipment used in the performance of the work in satisfactory operating condition.

SECTION 32 17 23 Page 11

2.1.1.1.1 Sandblasting Equipment- This section not used.

2.1.1.1.2 Waterblasting Equipment

Use mobile waterblasting equipment capable of producing a pressurized stream of water that effectively removes paint from the pavement surface without significantly damaging the pavement. Provide equipment, tools, and machinery which are safe and in good working order at all times.

2.1.1.1.3 Shotblasting Equipment- This section not used.

2.1.1.1.4 Grinding or Scarifying Equipment

Use equipment capable of removing surface contaminates, paint build-up, or extraneous markings from the pavement surface without leaving any residue. Clean the surface by hydro blast to remove surface contaminates and ash after a weed torch is used to remove paint.

2.1.1.1.5 Chemical Removal Equipment

Use chemical equipment capable of applying and removing chemicals and paint from the pavement surface, leaving only non-toxic biodegradable residue without scarring or other damage to the pavement or joints and joint seals.

2.1.2 Application Equipment

Submit application equipment list appropriate for the material(s) to be used. Provide and maintain machines, tools, and equipment used in the performance of the work in satisfactory operating condition, or remove them from the work site. Provide mobile and maneuverable application equipment to the extent that straight lines can be followed and normal curves can be made in a true arc.

2.1.2.1 Paint Application Equipment

2.1.2.1.1 Hand-Operated, Push-Type Machines

Provide hand-operated push-type applicator machine of a type commonly used for application of water based paint or two-component, chemically curing paint, thermoplastic, or preformed tape, to pavement surfaces for small marking projects, such as legends and cross-walks, automotive parking areas, or surface painted signs. Provide applicator machine equipped with the necessary tanks and spraying nozzles capable of applying paint uniformly at coverage specified. Hand operated spray guns may be used in areas where push-type machines cannot be used.

2.1.2.1.2 Self-Propelled or Mobile-Drawn Spraying Machines

Provide self-propelled or mobile-drawn spraying machine with suitable arrangements of atomizing nozzles and controls to obtain the specified results. Provide machine having a speed during application capable of applying the stripe widths indicated at the paint coverage rate specified herein and of even uniform thickness with clear-cut edges.

2.1.2.1.2.1 Road Marking

Provide equipment used for marking roads capable of placing the prescribed

SECTION 32 17 23 Page 12 number of lines at a single pass as solid lines, intermittent lines, or a combination of solid and intermittent lines using a maximum of three different colors of paint as specified.

2.1.2.1.2.2 Airfield Marking- This section not used.

2.1.2.1.2.3 Hand Application

Provide spray guns for hand application of paint in areas where the mobile paint applicator cannot be used.

2.1.2.2 Thermoplastic Application Equipment- This section not used.

2.2 MATERIALS

The maximum allowable VOC content of pavement markings is 150 grams per liter. Color of markings are indicated in the SOW and must conform to ASTM D6628 for roads and automotive parking areas. Provide materials conforming to the requirements specified herein.

2.2.1 Waterborne Paint

Federal paint specification TT-P-1952, Type I, shall be met for this project

2.2.2 Solventborne Paint- This section not used.

2.2.3 Methacrylate Paint- This section not used.

2.2.4 Epoxy Paint- This section not used.

2.2.4.1 Composition

SECTION 32 17 23 Page 13

2.2.5 Thermoplastic Compound- This section not used.

2.2.6 High Build Acrylic Coating (HBAC)- This section not used.

2.2.7 Preformed Tape- This section not used.

2.2.8 Raised Pavement Markers Primers and Adhesives- This section not used.

2.2.9 Reflective Media

2.2.9.1 Reflective Media for Airfields- This section not used.

2.2.9.2 Reflective Media for Roads

Reflective media for Air Force projects must conform to TT-B-1325.Type 1 glass beads shall be used.

PART 3 EXECUTION

3.1 EXAMINATION

3.1.1 Testing for Moisture- This section not used.

3.1.2 Surface Preparation Demonstration

Prior to surface preparation, demonstrate the proposed procedures and equipment. Prepare areas large enough to determine cleanliness, adhesion of remaining coating, and rate of cleaning. Perform a demonstration removal of pavement marking (if applicable) in an area designated by the Contracting Officer. Approved demonstration area establishes the standard for the remainder of the work.

Prior to paint application, demonstrate test stripe application within the work area using the proposed materials and equipment. Apply separate test stripes in each of the line widths and configurations required herein using the proposed equipment. Make the test stripes long enough to determine the proper speed and operating pressures for the vehicle(s) and machinery, but not less than 15 m/ 50 feet long.

3.1.3 Application Rate Demonstration

During the Test Stripe Demonstration, demonstrate compliance with the application rates specified herein. Document the equipment speed and operating pressures required to meet the specified rates in each configuration of the equipment and provide a copy of the documentation to the Contracting Officer prior to proceeding with the work.

3.1.4 Retroreflective Value Demonstration- This section not used.

SECTION 32 17 23 Page 14

3.1.5 Level of Performance Demonstration

The Contracting Officer (or designee) will be present at the application demonstrations to observe the results obtained and to validate the operating parameters of the vehicle(s) and equipment. If accepted by the Contracting Officer, the test stripe is the measure of performance required for this project. Do not proceed with the work until the demonstration results are satisfactory to the Contracting Officer.

3.2 EXTERIOR SURFACE PREPARATION

Allow new pavement surfaces to cure for a period of not less than 30 (thirty) days before application of marking materials. Thoroughly clean surfaces to be marked before application of the paint. Remove dust, dirt, and other granular surface deposits by sweeping, blowing with compressed air, rinsing with water, or a combination of these methods as required.

Remove existing paint markings, residual curing compounds, and other coatings adhering to the pavement by water blasting, scraping orm other approved methods.

a. For Portland Cement Concrete pavement, grinding, light scarification, to a resulting profile equal to ICRI 03732 CSP 2, CSP 3, and CSP 4, respectively, can be used in addition to water blasting on most pavements, to either remove existing coatings, or for surface preparation.

b. Do not use shot blasting on airfield pavements due to the potential of

Foreign Object Damage (FOD) to aircraft. Scrub affected areas, where oil or grease is present on old pavements to be marked, with several applications of trisodium phosphate solution or other approved detergent or degreaser and rinse thoroughly after each application.

After cleaning oil-soaked areas, seal with shellac or primer recommended by the manufacturer to prevent bleeding through the new paint. Do not commence painting in any area until pavement surfaces are dry and clean.

3.2.1 Early Painting of Rigid Pavements

Pretreat rigid pavements that require early painting with an aqueous solution containing 3 percent phosphoric acid and 2 percent zinc chloride. Apply the solution to the areas to be marked.

3.2.2 Early Painting of Asphalt Pavements

For asphalt pavement systems requiring painting application at less than 30 days, apply the paint and beads at half the normal application rate, followed by a second application at the normal rate after 30 days.

3.3 APPLICATION

Apply pavement markings to dry pavements only.

3.3.1 Paint

Apply paint with approved equipment at rate of coverage specified herein.

Provide guidelines and templates as necessary to control paint application. Take special precautions in marking numbers, letters, and symbols. Manually paint numbers, letters, and symbols. Sharply outline all edges of markings. The maximum drying time requirements of the paint specifications will be strictly enforced, to prevent undue softening of

SECTION 32 17 23 Page 15 bitumen, and pickup, displacement, or discoloration by tires of traffic.

If there is a deficiency in drying of the markings, painting operations must cease until the cause of the slow drying is determined and corrected.

3.3.1.1 Waterborne Paint- Latex paints shall be used in this project.

3.3.1.1.1 Airfields- This section not used.

3.3.1.1.2 Roads

Apply paint at a rate of 2.6 plus or minus 0.1 square meter per liter 105 plus or minus 5 square feet per gallon. Apply [FS TT-B-1325 Type I (Gradation A)] [AASHTO M 247 Type 1] beads at a rate of 834 plus or minus 60 grams of glass spheres per liter 7 plus or minus 0.5 pounds of glass spheres per gallon.

3.3.1.2 Solventborne Paint- This section not used.

3.3.1.3 Methacrylate Paint- This section not used.

3.3.1.4 Epoxy Paint- This section not used.

3.3.1.5 High Build Acrylic Coating- This section not used.

3.3.2 Thermoplastic Compound- This section not used.

3.3.3 Raised Pavement Markers- This section not used.

3.3.4 Preformed Tape- This section not used.

3.3.5 Cleanup and Waste Disposal

Keep the worksite clean and free of debris and waste from the removal and application operations. Immediately cleanup following removal operations in areas subject to aircraft traffic. Dispose of debris at approved sites.

SECTION 32 17 23 Page 16

3.4 FIELD QUALITY CONTROL

3.4.1 Sampling and Testing- This section not used.

3.4.2 Material Inspection

Examine material at the job site to determine that it is the material referenced in the submittals.

3.4.3 Dimensional Tolerances

Apply all markings in the standard dimensions provide in the drawings.

New markings may deviate a maximum of 10 percent larger than the standard dimension. The maximum deviation allowed when painting over an old marking is up to 20 percent larger than the standard dimensions.

3.4.4 Bond Failure Verification

Inspect newly applied markings for signs of bond failure based on visual inspection and comparison to results from Test Stripe Demonstration paragraph.

3.4.5 Reflective Media and Coating Application Verification

Use a wet film thickness gauge to measure the application of wet paint.

Use a microscope or magnifying glass to evaluate the embedment of glass beads in the paint. Verify the glass bead embedment with approximately 50 percent of the individual bead spheres embedded and 50 percent of the individual bead spheres exposed.

3.4.6 Retroreflective Markings

Collect and record readings for white and yellow retroreflective markings at the rate of one reading per 305 linear m 1000 linear feet. The minimum acceptable average for white markings is 200 millicandelas per square meter per lux (mcd/m2/lx) (measured with Retroreflectometer). The minimum acceptable average for yellow markings is 175 millicandelas per square meter per lux (mcd/m2/lx). Compute readings by averaging a minimum of 10 readings taken within the area at random locations. Re-mark areas not meeting the retroreflective requirements stated above.

3.4.7 Material Bond Verification and Operations Area Cleanup for Airfields-

This section not used.

-- End of Section --