SS246-002020-02.docx

SS246-002020-02 May 6, 2022

VIRGINIA DEPARTMENT OF TRANSPORTATION

2020 ROAD AND BRIDGE SUPPLEMENTAL SPECIFICATIONS

SECTION 246 – PAVEMENT MARKING

SECTION 246 – PAVEMENT MARKING of the Specifications is amended as follows:

Section 246.02 – Detail Requirements is amended to replace the fifth through seventh paragraphs with the following:

Pavement marking materials shall produce a retroreflective line, message, legend or symbol of specified thickness, width or design in accordance with the MUTCD and Contract requirements.

Pavement marking material shall have the pigment, glass beads, retroreflective optics, and filler well dispersed in the resin, and shall be free from skins, dirt, and foreign objects.

Glass beads and retroreflective optics shall conform to Section 234.

Section 246.02(a) – Approval of Pavement Markings is amended to replace the second paragraph of the second bullet with the following:

When pavement markings are installed on the NTPEP test deck or the VDOT facility, the material’s thickness, beads/retroreflective optics, and formulation shall be documented to ensure the equivalent thickness, beads/retroreflective optics and formulation are installed on VDOT roadways following approval.

Section 246.02(b) – Certifications is replaced with the following:

The pavement marking material manufacturer shall certify each batch or lot of material supplied and installed is the same product (thickness, retroreflective optics package and formulation) that was tested and approved on the AASHTO/NTPEP or VDOT test facility in accordance with the Materials Division, Manual of Instructions for Certification I and II Materials. The certification shall include the NTPEP test number from the Materials Division’s Approved Products List. The Contractor shall retain the manufacturer’s certifications.

Section 246.02(c) – Warranty Requirements is amended to replace the first paragraph with the following:

Pavement marking products shall carry the warranties as supplied by the manufacturer of the individual marking types (classes) for the specific timeframes per type and class and the material requirements for retroreflectivity, durability, color, luminance (Y%), and adhesion as referenced herein. Warranties shall be those commercially supplied or those unique to the Commonwealth in the case of certain products, such as Type B, Class VI preformed pavement marking tape as detailed herein. Manufacturers’ warranties shall be obtained by the Contractor and assigned to the Department in writing prior to final acceptance. Warranty periods shall begin on the date of receipt at the project as verified by delivery tickets signed by the Engineer.

Section 246.03(a) – Paint Pavement Marking Materials (Type A) is renamed Section 246.03(a) – Conventional or Cold Weather Paint Marking Materials (Type A, Class I) and amended to replace the first paragraph with the following:

Type A, Class I paint material shall be a fast-drying, waterborne, nonleaded, acrylic or modified acrylic resin paint suitable for use on both asphalt and hydraulic cement concrete pavement surfaces and shall be selected from the Materials Division’s Approved Products List No. 20. Type A, Class I material shall be designed to be applied at approximately 15 mils wet film thickness in conjunction with AASHTO M 247 Type I beads as per Section 234 of the Specifications.

Type A, Class I cold weather paint shall be capable of being both applied and remaining fully adhered to the surface at temperatures below 40 °F.

Section 246.03(a)1e – IR Scan from NTPEP is replaced with the following:

e. IR Scan from NTPEP.

Section 246.03(b) – High Build Paint Marking Materials (Type A, Class II) is added as follows:

Type A, Class II Paint material shall be a fast-drying, waterborne, nonleaded, acrylic or modified acrylic resin paint suitable for use on both asphalt and hydraulic cement concrete pavement surfaces and shall be selected from the Materials Division’s Approved Products List No. 20. Type A, Class II material shall be designed to be applied at approximately 27 mils wet film thickness.

1. Initial Approval - Maintained retroreflectivity, color (including luminance), and durability shall conform to the following requirements after the material has been installed on the test deck for 1 year:

a. Maintained Retroreflectivity: The photometric quantity to be measured is the coefficient of retroreflected luminance (RL) in accordance with ASTM E1710 for 30-meter geometry. RL shall be expressed in millicandelas per square foot per foot-candle when measured in the skipline or centerline areas:

Coefficient of Retroreflected Luminance (RL) (mcd/ft2/fc) Paint

b. Day and Nighttime Color and Luminance (Y%): Measured according to ASTM D6628.

c. Durability: Paint shall have a durability rating of at least 8 when determined in the wheel path area when tested in accordance with the NTPEP Work Plan.

d. Skid Resistance: The initial skid resistance shall be at least 45 BPN when tested according to ASTM E303, if available.

e. IR Scan from NTPEP.

2. Batch Testing Paint batch testing shall be performed by the Department on samples obtained from the point of manufacture or from the field in accordance with the Materials Division’s Manual of Instructions. The test results shall be compared against NTPEP lab test results and the Specifications. Testing shall be performed to determine the following physical requirements and properties:

a. Solids, (% weight) according to ASTM D2369: Acceptable range from NTPEP results (+/- 2%).

b. Pigment (% weight) according to ASTM D3723: Acceptable range from NTPEP results (+/- 2%).

c. Density (wt/gal.) according to ASTM D1475: Acceptable range from NTPEP results (+/-0.3 lbs/gal).

d. Viscosity (KU) according to ASTM D562: Acceptable range from NTPEP results (+/-5KU).

e. Contrast Ratio according to ASTM D2805 (2°,D 65): Paint shall show a dry hiding quality that will give a contrast ratio of at least 0.96 at (15 mil) wet film thickness.

f. Day Color, Luminance (Y%) - (without Drop-on Beads):

Color testing results shall conform to the chromaticity coordinate limits that follow. Color determination for paint materials will be made without drop-on beads at least 24 hours after application in accordance with ASTM D6628.

Day Color, Chromaticity Coordinates (Without Drop-on Beads), High Build Paint

g. Settling properties: Settling shall be no less than a rating of 8 when tested in accordance with the NTPEP Work Plan.

h. Freeze-thaw and heat stability: Paint shall show no coagulation or change in viscosity greater than +/- 5 KU when tested in accordance with the NTPEP Work Plan.

i. Water resistance: Paint shall show no blistering, peeling, wrinkling, softening, or loss of adhesion when tested in accordance with the NTPEP Work Plan.

j. VOC: The VOC content shall be no greater than 150 grams/liter when tested in accordance with EPA Method 24.

k. Flash point: Paint shall have a flash point of at least 201 degrees F when tested in accordance with ASTM D93, Pensky-Martens Closed Cup.

l. Infrared (IR) Scan: Shall match IR scan from NTPEP.

Section 246.03(b) – Thermoplastic Marking Materials (Type B, Class I) is renumbered as 246.03(c) and replaced as follows:

Thermoplastic material shall be suitable for use on asphalt and hydraulic cement concrete pavement surfaces and shall be selected from the Materials Division’s Approved Products List No. 43.

The binder shall be either alkyd or hydrocarbon based. If an alkyd thermoplastic is used, the binder shall consist of synthetic resins, at least one of which is solid at room temperature, and high-boiling plasticizers. At least one-half of the binder composition shall be a maleic-modified glycerol ester of resin and shall be at least 10 percent by weight of the entire material formulation.

Thermoplastic marking materials shall be capable of application at pavement surface temperatures of 50 degrees Fahrenheit and above on all asphalt and hydraulic cement concrete pavement surfaces. Thermoplastic material shall be capable of successfully fusing to itself and previously applied thermoplastic pavement markings.

1. Initial Approval - Maintained retroreflectivity, color, luminance (Y%), and durability shall conform to the following requirements after the material has been installed on the test deck for 1 year:

a. Maintained Retroreflectivity: The photometric quantity to be measured is the coefficient of retroreflected luminance (RL) in accordance with ASTM E1710 for 30-meter geometry when measured in the skip line area.

Coefficient of Retroreflected Luminance (RL) (mcd/ft2/fc) Thermoplastic

b. Day and Nighttime Color and Luminance (Y%): According to ASTM D6628

c. Durability: Thermoplastic shall have a durability rating of at least 8 as determined in the wheel path area when tested in accordance with the NTPEP Work Plan.

d. Skid Resistance: The initial skid resistance shall be at least 45 BPN when tested per ASTM E303, if available.

2. Batch Testing:

Thermoplastic batch testing will be performed by the Department on samples obtained from the point of manufacture or from the field in accordance with the Materials Division’s Manual of Instructions. The tests results will be compared against the following specifications and requirements:

a. Pigment and Glass Bead (% Weight) according to ASTM D4451 82.0% Max

b. Intermix Glass Bead Content (% Weight) according to AASHTO T 250

f. Day Color, Luminance (Y%) (Without Drop-on Beads): Color testing results shall conform to the chromaticity coordinate limits that follow. Color determination for thermoplastic materials will be made without drop-on beads after cooling in accordance with AASHTO T 250 and ASTM D6628.

Day Color, Chromaticity Coordinates (Without Drop-on Beads), Thermoplastic

g. Nighttime Yellow Color (with Drop-on Beads): The initial nighttime color of yellow thermoplastic pavement marking material shall conform to the following CIE chromaticity coordinate requirements when tested in accordance with ASTM D6628 and VTM-111:.

Night Time Color, Chromaticity Coordinates (with Drop-on Beads) Thermoplastic

h. Water absorption: Materials shall not have more than 0.5 percent retained water by weight when tested in accordance with ASTM D570, Procedure A.

i. Softening point: Materials shall have a softening point of at least 194 degrees F as determined in accordance with ASTM E28.

j. Specific gravity: The specific gravity of the thermoplastic compound at 77 degrees F shall be from 1.7 to 2.2.

k. Impact resistance: The impact resistance shall be at least 10 inch-pounds at 77 degrees F after the material has been heated for 4 hours at 400 degrees F and cast into bars of 1-inch cross-sectional area, 3 inches long, and placed with 1 inch extending above the vise in a cantilever beam, Izod-type tester conforming to ASTM D256 using the 25 inch-pound scale.

l. No-Track Time: Material shall set to bear traffic in not more than 2 minutes when the road temperature is 50 degrees F or above.

m. Intermixed Glass beads: Glass beads shall conform to Section 234.

n. Flashpoint: The material flashpoint shall be no less than 500 degrees F when tested in accordance with ASTM D92.

Section 246.03(c) Preformed Thermoplastic Pavement Marking Material (Type B, Class II) is renumbered as 246.03(d).

Section 246.03(d)1 Initial approval is amended to replace the first paragraph with the following:

Maintained retroreflectivity, color, luminance (Y%), and durability shall conform to the following requirements after the material has been installed on the test deck for 1 year:

Section 246.03(d) Epoxy-Resin Pavement Marking Material (Type B, Class III) is renumbered as 246.03(e).

Section 246.03(e)1 Initial approval is amended to replace the first paragraph with the following:

Maintained retroreflectivity, color, luminance (Y%), and durability shall conform to the following requirements after the material has been installed on the test deck for 1 year:

Section 246.03(e) Polyurea Pavement Marking Material (Type B, Class VII) is renumbered as 246.03(f).

Section 246.03(f)1 Initial approval is amended to replace the first paragraph with the following:

Maintained retroreflectivity, color, luminance (Y%)), and durability shall conform to the following requirements after the material has been installed on the test deck for 1 year:

Section 246.03(f) Permanent, Plastic-Backed, Preformed Tapes (Type B, Class IV and Type B, Class VI) is renumbered as 246.03(g).

Section 246.03(g)1 Initial approval is amended to replace the first paragraph with the following:

Maintained retroreflectivity, color, luminance (Y%), durability, and adhesion shall conform to the following requirements after the material has been installed on the test deck for 1 year:

Section 246.03(g) – Temporary Pavement Marking Materials is renumbered as 246.03(h) and replaced with the following:

Temporary Pavement Marking Materials other than paint shall consist of Type D, Class III, removable, wet reflective tape and Type E removable black, non-reflective tape. Determination of conformance will include, but not be limited to, the evaluation of test data from AASHTO’s NTPEP or other VDOT Test Facilities.

1. Wet Reflective, Removable Tape (Type D, Class III):

Wet reflective, removable tape shall be a durable, retro-reflective pliant material consisting of a mixture of polymeric materials, pigments, and glass beads (reflective optics) evenly distributed throughout its cross-sectional area and embedded into the surface. This tape shall be suitable for use on both asphalt and hydraulic cement concrete surfaces and shall be selected from the Department’s Approved List 17.

a. Initial Approval - Maintained retroreflectivity (dry and wet), color, luminance (Y%), and adhesive bond rating shall conform to the following requirements after the material has been installed on the test deck for 90 days:

(1) Maintained Dry Retroreflectivity: The dry photometric quantity to be measured is the coefficient of retroreflected luminance (RL) in accordance with ASTM E1710 for 30-meter geometry when measured in the skip line or centerline areas.

Coefficient of Retroreflected Luminance (RL) (mcd/ft2/fc) Dry Retro Removable Tape-Type D, Class III

(2) Maintained Wet Retroreflectivity: The wet photometric quantity to be measured is the coefficient of retroreflected luminance (RL) in accordance with VTM 124 (Visual Evaluation or ASTM E2177, Recovery Method) when measured in the skip line or centerline areas.

Coefficient of Retroreflected Luminance (RL) (mcd/ft2/fc) Wet Retro Removable Tape-Type D, Class III

(3) Day and Nighttime Color and Luminance (Y%): According to ASTM D6628.

(4) Adhesive Bond Rating: The average adhesive bond rating (from transverse and longitudinal lines) shall be 3 or higher according the NTPEP Work Plan.

(5) Skid Resistance: The initial skid resistance shall be at least 45 BPN when tested according to ASTM E303, if available.

(6) Thickness: Per the manufacturer’s recommendation.

(7) Adhesion: No line shall be displaced, torn or missing.

b. Batch Testing:

Wet reflective, removable tape batch testing will be performed by the Department on samples obtained from the point of manufacture or from the field in accordance with the Materials Division’s Manual of Instructions. Test results shall be compared against the following specifications and requirements:

(1) Retroreflectivity: Refer to initial requirements

(2) Day and Night Color and Luminance: Refer to initial requirements

(3) Thickness: Refer to initial requirements

(4) Width: The width shall be no less than the nominal width and no greater than 1/8” of the nominal width.

(5) Length: The length shall be no less than the length stated on the manufacturer’s packaging.

(6) Skid Resistance: Refer to initial requirements.

2. Removable Black, Non-Reflective Tape (Type E):

Removable black, non-reflective tape shall be a durable, pliant material consisting of a mixture of polymeric materials, pigments and a friction material evenly distributed throughout its cross-sectional area and embedded into the surface. Removable black, non-reflective tape shall be suitable for use on asphalt concrete pavement surfaces, and shall be selected from the Department’s Approved List 17.

a. Initial Approval - Maintained adhesive bond rating shall conform to the following requirements after the material has been installed on the test deck for 90 days:

(1) Adhesive Bond Rating: The average adhesive bond rating (from transverse and longitudinal lines) shall be 3 or higher according to the NTPEP Work Plan.

(2) Skid Resistance: The initial skid resistance shall be at least 45 BPN when tested according to ASTM E303, if available.

(3) Thickness: Per the manufacturer’s recommendation.

(4) Adhesion: No line shall be displaced, be torn or missing.

b. Batch Testing Black removable, non-reflective tape batch testing will be performed by the Department on samples obtained from the point of manufacture or from the field in accordance with the Materials Division’s Manual of Instructions. Test results shall be compared against the following specifications:

(1) Skid Resistance: Refer to initial requirements

(2) Thickness: Refer to initial requirements

(3) Width: The width shall be no less than the nominal width and no greater than 1/8” of the nominal width.

(4) Length: The length shall be no less than the length stated on the manufacturer’s packaging.