658Standard and Wet Weather Polyurea Traffic Stripe

658.1General Description

This work includes furnishing and applying reflectorized standard and wet weather polyurea traffic stripe according to the plans and these specifications. This Item also includes applying words and symbols according to plan details, specifications, and the current Manual on Uniform Traffic Control Devices. 658.1.01 Definitions Painted Stripes: Solid or broken (skip) lines. The location and color are designated on the plans. Skip Traffic Stripes: Painted segments between unpainted gaps on a designated sequence with a ratio of 1:3 [10 ft. (3 m) segment and 30 ft. (9 m) gap] as specified on the plans. The location and color are designated on the plans. 658.1.02 Related References

General Provisions 101 through 150.

QPL 46 QPL 71 AASHTO M 247 ACI Method 503 ASTM C 4060 ASTM D 711 ASTM D 1155 ASTM D 1213 ASTM D 4061 ASTM D 6359 ASTM E 303 ASTM E 1710 ASTM E 2177 ASTM G 154 ASTM G 53-77 Federal Standard No. 595A-17778 SOP 39 US EPA Method 3052 US EPA Method 6010C 1233 1233 1233 1233 1233

658.2Materials

• Use polyurea material that has been evaluated (2 year field evaluation) by the National Transportation Product Evaluation Panel (NTPEP) test facility or other approved test facility. • Use polyurea material produced from an approved source listed on QPL 46. • Use a polyurea composition that is specifically formulated for use as a durable pavement marking material and for application at elevated temperatures not exceeding 170 ºF (77 ºC). • Ensure the liquid markings consist of a two-component (Part A and Part B), 100% solids polyurea film formulated and designed to provide a simple volumetric mixing ratio as recommended by the manufacturer. • Use white or yellow films for the markings. Ensure that these films are manufactured without the use of lead chromate pigments or other similar, lead-containing chemicals. • Ensure that the white polyurea contains not less than 13% by weight rutile titanium dioxide pigment to insure adequate opacity, hiding power,and reflective properties.

Use glass spheres and/or reflective composite optics for the reflective media system that ensures the polyurea pavement markings meet the reflectance performance requirements in Subsection 658.3.04. Do not use beads and/or optics containing greater then 200 ppm total arsenic, 200 ppm total antimony, or 200 ppm total lead when tested according to US EPA Methods 3052 and 6010C, or other approved methods. Ensure glass spheres meet the requirements of AASHTO M 247. Use glass spheres produced from an approved source listed on QPL 71. Glass spheres conforming to an alternative gradation may be used provided all other requirements of AASHTO M 247 and this specification are met. Obtain approval from the Office of Materials and Research to use alternate gradations.

Ensure that the retroreflective pavement markings consist of a mixture of high-quality resins, curing agent and pigments, with a reflective layer bonded to the top surface consisting of glass spheres and/or reflective composite optics.

Meet these color requirements: • White markings are pure white and free from dirt or tint. • Yellow markings are “Federal Yellow” in color. • The material does not change its color and brightness characteristics after prolonged exposure to sunlight.

Ensure the surface of the retroreflective marking provides an initial average skid resistance value of 45 BPN when tested according to ASTM E303.

Ensure that the mixed polyurea compound, both white and yellow, when applied to 3 in. (75 mm) x 6 in. (150 mm) aluminum panels at 15 ± 1 mils (0.381 mm ± 0.025 mm)wet thickness without glass beads and exposed in a Q.U.V. Environmental Testing Chamber, as described in ASTM G-53-77, conforms to the following minimum requirements: • The color of the white polyurea compound is not darker than Federal Standard No. 595A-17778. • The color of the yellow polyurea compound meets the requirements of the “Federal Yellow” color chart. 1234 1234 1234 1234 1234

When tested in accordance with ASTM D-711 the polyurea marking material shall reach a no-pick-up condition in 10 minutes or less. Perform this test with AASHTO M247 Type 1 beads applied at a rate of 0.099 pounds per sq. ft. (0.483 kg/m2). Ensure that the drying time does not increase substantially with decreasing temperature.

When installed at 77 ºF (25 ºC) and rising, at a thickness 25 ± 2 mils (0.635 mm ± 0.051 mm) on all concrete pavement types and reflectorized with glass spheres and/or reflective composite optics, ensure that the polyurea markings reach a no-track condition in less than 10 minutes. Dry to “no-tracking” will be considered as the condition where no visual deposition of the polyurea marking to the pavement surface is observed when viewed from a distance of 50 ft. (15 m), after a traveling vehicle’s tires have passed over the marking. *Note – Polyurea will not be used as a pavement marking material on any asphalt pavement types.

Ensure that the wear index of the polyurea compound does not exceed 0.00026 lbs. (120 mg) when tested in accordance with ASTM C4060 using a CS-17 wheel and under a load of 2.2 lbs. (1000 g) for 1000 cycles.

Ensure that the polyurea pavement marking materials, when tested according to ACI Method 503, have such a high degree of adhesion to the specified concrete surface that there is a 100% concrete failure in the performance of this test. Condition the prepared specimens at room temperature 75 º ± 2 ºF (24 ºC ± 1 ºC) for a minimum of 24 hours and maximum of 72 hours prior to the performance of this test.

658.3Construction Requirements

658.3.01 Equipment

To apply the traffic marking material, use a mobile, truck mounted and self contained pavement marking machine, specifically designed to apply two-component liquid materials, and glass beads, in a continuous and skip-line pattern. Apply the two-component liquid materials through airless impingement mixing guns. The guns must accommodate a plural component material system at the manufacturer’s recommended volumetric mixing ratio. The guns must have the capacity to deliver materials from approximately 1.5 gal (5.7 L) to 3 gal (11.4 L) per minute to compensate for a typical range of application speeds of 3 mph (5 km/h) to 6 mph (10 km/h). Ensure that the machine travels at a uniform rate of speed both uphill and downhill. Select the necessary accessories such as spray tip, mix chamber or static tube, and rod diameter to ensure proper mixing. Ensure that the machine meets the following: • The machine is capable of applying three separate stripes, either solid or skip, in any specified pattern by utilizing three adjacent spray nozzles at the same time. • Each nozzle is equipped with satisfactory cutoff valves that will apply skip lines automatically. • The application equipment is maneuverable to the extent that straight lines can be followed and normal curves can be made in a true arc. • The truck-mounted unit is provided with accessories to allow for the marking of symbols and legends. 1235 1235 1235 1235 1235

Ensure that the mobile applicator also includes the following features: • The mobile applicator provides individual material reservoirs for the storage of Part A and Part B of the resin composition. • The applicator is equipped with heating equipment of sufficient capacity to maintain the individual resin components at the manufacturer’s recommended temperature for spray application. • The applicator is equipped with separate temperature controls for each component. • The applicator is equipped with glass spheres dispensing equipment and capable of applying the glass spheres at a uniform rate. • The application equipment is equipped with metering devices or pressure gauges on the proportioning pumps as well as stroke counters to monitor volumetric usage. Ensure that the metering devices or pressure gauges and stroke counters are visible. • The applicator is equipped with all the necessary spray equipment, mixers, compressors, and other appurtenances to allow for the placement of reflectorized pavement markings in a simultaneous sequence of operations.

Use brushes, brooms, scrapers, grinders, high-pressure water jets, or air blasters to remove dirt, dust, grease, oil, and other foreign matter from painting surfaces without damaging the underlying pavement. 658.3.02 Preparation Notify the Engineer prior to the placement of the polyurea materials. Furnish the Engineer with the manufacturer’s name and batch numbers of the polyurea materials and glass spheres to be used. Ensure that the approved batch numbers appear on the polyurea materials and glass spheres packages. Before painting, thoroughly clean pavement surfaces of dust, dirt, grease, oil, and all other foreign matter. Remove concrete curing compounds on new Portland cement concrete surfaces and existing pavement markings on concrete surfaces. 658.3.03 Construction

Apply pavement markings only during conditions of dry weather and subsequently dry pavement surfaces. Ensure that the pavement surface temperature and the ambient temperature at the time of installation are both greater than 40 ºF (4 ºC) and that the relative humidity is not greater than 85 percent.

Ensure that the traffic stripe is the specified length, width, and placement. On sections where no previously applied markings are present, ensure accurate stripe location by establishing control points at spaced intervals. The Engineer will approve control points.

Apply the pavement markings as follows:

installation instructions.

designated on the plans. Do not begin marking operations until applicable surface preparation work is completed and approved by the Engineer.

markings as a continuous operation. 1236 1236 1236 1236 1236

the application spray nozzle.

mils (0.635 mm ± 0.051 mm) above the surface of the concrete pavement.

marking at the application rates recommended by the binder manufacture.

Following an application of glass spheres and/or reflective composite optics, and upon curing, ensure that the

resulting marking is an adherent reflectorized stripe of the specified thickness and width that is capable of

resisting deformation by traffic.

Protect newly applied paint as follows:

Control and protect traffic with warning and directional signs during painting. Set up warning signs before

beginning each operation and place signs well ahead of the painting equipment. When necessary, use a pilot

car to protect both the traffic and the painting operation.

Protect the freshly painted stripe using cones or other satisfactory devices. Repair stripe damage or pavement

smudges caused by traffic according to Subsection 658.3.04.

Continually deviating from stated dimensions is cause for stopping the work and removing the nonconforming

stripe. (See Section 656.) Adhere to the following measurements:

Do not lay stripe less than the specified width. Do not lay stripe more than 1/2 in. (13 mm) over the

specified width.

Ensure that the 10 ft. (3 m) painted skip stripe and the 30 ft. (10 m) gap between painted segments vary no

more than ± 1 ft (300 mm) each.

straight lines or curves of 1 degree or less.

658.3.04 Quality Acceptance

For a minimum of 30 days from the time of placement, ensure the polyurea traffic pavement marking material

shows no signs of failure due to blistering, excessive cracking, chipping, bleeding, staining, discoloration, oil

content of the pavement materials, smearing or spreading under heat, deterioration due to contact with grease

deposits, oil, diesel fuel, or gasoline drippings, spilling, poor adhesion to the pavement material, vehicular

damage, and normal wear. In the event that failures mentioned above occur, ensure corrective work is completed

at no additional cost to the Department.

Ensure that stripes and segments of stripes are clean-cut and uniform. Markings that do not appear uniform or

satisfactory, either during the day or night, or do not meet specifications or become marred or damaged by traffic

or from other causes, will be corrected at the Contractor’s expense. 12371237123712371237

Sections of painted stripe, words, and symbols placed according to the plans and specifications and have dried

so that paint will not be picked up or marred by vehicle tires will be accepted.

Obtain pavement marking retroreflectivity values with a 30 meter geometry retro-reflectometer.

When correcting a deviation that exceeds the permissible tolerance in alignment, do the following:

Section 656.

Remove misted, dripped, or spattered paint to the Engineer’s satisfaction. Do not damage the underlying

pavement during removal.

Refer to the applicable portions of Section 656.

Within 30 days of installation, ensure the in-place markings meet the following minimum reflectance values:

White Yellow

Dry (ASTM E 1710) 400 mcd/lux/m2 300 mcd/lux/m2

White Yellow

Dry (ASTM E 1710) 400 mcd/lux/m2 300 mcd/lux/m2

Wet recovery (ASTM E 2177) 150 mcd/lux/m 125 mcd/lux/m

For each center line, edge line, and skip line, measure retro-reflectivity 9 times for each mile (1.61 km); 3 times

within the first 500 ft. (152 m), 3 times in the middle, and 3 times within the last 500 ft. (152 m). For projects

less than one mile (1.61 km) in length, measure retro-reflectivity 9 times as above.

Record all retro reflectivity measurements on the form OMR CVP 66 in SOP 39.

Within 30 days of installation, ensure the in-place markings when tested according to ASTM E 1710 meet the

following minimum reflectance value of 275 mcd/lux/m

.

Perform at a minimum, one retro-reflectivity measurement at one message, one symbol and one transverse

line per intersection. Take one measurement per mile (1.61 km) for locations other than intersections (i.e.

school messages, railroad messages, bike symbols etc.)

Maintain the following minimum reflectance values for 180 days after installation:

White Yellow

Dry (ASTM E 1710) 400 mcd/lux/m2 300 mcd/lux/m2 12381238123812381238

White Yellow

Dry (ASTM E 1710) 400 mcd/lux/m2 300 mcd/lux/m2

Wet recovery (ASTM E 2177) 150 mcd/lux/m2 125 mcd/lux/m2

Retest the in-place markings according to Subsection 658.3.04.B.1 180 days after installation to ensure these

minimum retro-reflectance values are maintained.

Note: The Contractor is responsible for retro-reflectivity testing. Furnish initial test results to the Engineer

within 30 days of application. Furnish 6-month test results to the Engineer within 180 days of application or

prior to final acceptance, whichever comes first.

Check the thicknesses on all skip lines, edge lines and center lines by placing durable tape, film, or metal plate of

known and uniform thickness on an area to be striped. After the striper has passed over, remove the sample and

measure the thickness with calipers or a micrometer.

For each center line, edge line, and skip line, measure thickness above the pavement 3 times for each mile (1.61

km); once within the first 500 ft. (152 m), once in the middle, and once within the last 500 ft. (152 m). For projects

less than one mile (1.61 km) in length, measure the thickness above the pavement 3 times.

Record thickness measurements on the form OMR CVP 66 in SOP 39.

Submit results to Engineer.

For each mile section, if polyurea traffic stripe fails to meet plan details or specifications or deviates from stated

dimensions, correct it at no additional cost to the Department. If removal of pavement markings is necessary,

perform it according to Section 656 and place it according to this specification. No additional payment will be

made for removal and replacement of unsatisfactory striping. Ensure corrective work is completed at no additional

cost to the Department. Perform testing according to this specification. Any retest due to failures will be

performed at no additional cost to the Department. Furnish all test reports to the Department.

Retro-reflectivity and Thickness Longitudinal Line Deficiency: A deficiency will ensure when two or more Location

Average results as recorded on form OMR CVP 66 within a One-Mile Section do not meet the performance criteria

herein. The entire line within this one-mile (1.61 km) section will be determined to be deficient. If the evaluated

section is less than 1.0 mile (1.61 km), a single Location Average result not meeting the performance criteria herein

will result in the entire line to be determined to be deficient.

Retro-reflectivity Transverse Markings and Symbol Deficiency: A single Location Average result on the marking

or symbol not meeting the performance criteria herein will result in the marking or symbol to be determined to

be deficient.

658.3.05 Verification

See SOP 39.

658.4Measurement

When traffic stripe is paid for by the square yard (meter), the number of square yards (meters) painted is measured and

the space between stripes is included in the overall measurement.

Linear measurements are made on the painted surface by an electronic measuring device attached to a vehicle. On

curves, chord measurements, not exceeding 100 linear feet (30 linear meters), are used.

Traffic stripe and markings, complete in place, are measured and accepted for payment as follows: 12391239123912391239

Solid traffic stripe is measured by the linear foot (meter), linear mile (kilometer), or square yard (meter). Breaks or

omissions in solid lines or stripes at street or road intersections are not measured.

Skip traffic stripe is measured by the gross linear foot (meter) or gross linear mile (kilometer). Unpainted spaces

between the stripes are included in the overall measurements if the Plan ratio of 1 to 3 remains uninterrupted.

Measurement begins and ends on a stripe.

Pavement markings, words and symbols completed according to plan dimensions are measured by the unit.

658.5Payment

Payment will be full compensation for the work under this Section, including the following:

• Cleaning and preparing surfaces

• Furnishing materials, including paints, beads, and thinners

• Applying, curing, and protecting paints

• Protecting traffic, including providing and placing necessary warning signs

• Furnishing tools, machines, and other equipment necessary to complete the Item

Payment will be made under:

Item No. 658 Standard solid polyurea traffic stripe, _____ in. (mm), (color) Per linear mile (kilometer)

Item No. 658 Standard skip polyurea traffic stripe, _____in. (mm), (color) Per gross linear mile (kilometer)

Item No. 658 Standard solid polyurea traffic stripe, _____in. (mm), (color) Per linear foot (meter)

Item No. 658 Standard skip polyurea traffic stripe, _____in. (mm), (color) Per gross linear foot (meter)

Item No. 658 Standard polyurea pavement markings, words, and symbols,

(color)

Per each

Item No. 658 Standard polyurea traffic stripe, _____in. (mm), (color) Per square yard (meter)

Item No. 658 Wet weather solid polyurea traffic stripe, _____ in. (mm), (color) Per linear mile (kilometer)

Item No. 658 Wet weather skip polyurea traffic stripe, _____in. (mm), (color) Per gross linear mile (kilometer)

Item No. 658 Wet weather solid polyurea traffic stripe, _____in. (mm), (color) Per linear foot (meter)

Item No. 658 Wet weather skip polyurea traffic stripe, _____in. (mm), (color) Per gross linear foot (meter)

Item No. 658 Wet weather polyurea pavement markings, words, and symbols,

(color)

Per each

Item No. 658 Wet weather polyurea traffic stripe, _____in. (mm), (color) Per square yard (meter)) 1240 1240 1240 1240 1240