856.02 Traffic Stripe (Multi -Polymer)
TRAFFIC STRIPE (MULTI -POLYMER)
856.01 Description
This work consists of providing and placing reflectorized and non -reflectorized multi -polymer pavement markings on asphalt concrete (AC) and portland cement concrete (PCC) pavement surfaces.
856.02 Materials
A.Physical Properties of the Mixed Compound Provide a multi -polymer resin material free of heavy metals (as defined by the EPA) appro ved by the Resident Engineer. When heating to the application temperature, ensure the material does not exude toxic fumes. Formulate and test the materials to ensure performance as a pavement marking material with glass beads applied to the surface. When properly applied with the required gradations and bead applications, ensure the multi -polymer resin compound cures to a no -track condition within 45 min (at 70 °F [20 °C] or greater) or within 240 min (at 40 °F [4.4 °C]), tested in accordance with ASTM D 711. Provide materials in accordance with the Table 856:1, Table 856:2, and Table 856:3: Table 856:1 Color Requirements Federal 595 Color Chromaticity Coordinates Brightness 1 2 3 4 (Y) x y x y x y x y White 17886 0.355 0.355 0.305 0.305 0.285 0.325 0.335 0.375 80 min Yellow 13538 0.56 0.44 0.49 0.51 0.42 0.44 0.46 0.4 60 min - 70 min TRAFFIC STRIPE (MULTI -POLYMER) 856.02 Table 856:2 Multi -Polymer Traffic Stripe Properties Property Test procedure Description Abrasion Resistance ASTM C 501 Evaluate using a Taber Abrader with a 2.2 lb [1,000 g] load and CS -17 wheels for 1,000 cycles. Calculate the wear index and ensure the index for the dual component material is 80 mg or less. Perform the test on cured samples applied, without glass beads, at a film thickness from 0.0195 in to 0.0205 in [0.495 mm to 0.520 mm] to code S -16 stainless steel plates. Allow the samples to cure at room temperature (from 73 °F to 77 °F]) from 24 hr to 72 hr before performing the tests. Hardness ASTM D 2240 Ensure the multi -polymer paint pavement markings material has a Shore D Hardness from 75 to 95. Allow the samples to cure at room temperature (from 73 °F to 77 °F) from 24 hr to 72 hr before performing the indicated tests. Adhesion to Concrete ACI 503, Ensure the multi -polymer marking material has a higher degree of adhesion to the specified concrete (at least 4,000 psi) surface, so there is 100 percent concrete failure in the test performance. Appendix A.1 Allow the samples to cure at room temperature (from 73 °F to 77 °F) from 24 hr to 72 hr before performing the indicated tests. Yellowness Index ASTM E313 Ensure the white material has a yellowness index (ASTM E313 C/2) no greater than 30. C/2: Illuminant C, 2° observer). After 72 QUV exposure per ASTM G154 with a UVA - 340 Lamp at an irradiance of 0.89 W/m2/nm with alternating cycles of 4 hours U.V @ 140 ° F, and 4 hours humidity @ 122 ° F.
856.02 Traff Ic Stripe (Multi -Polymer)
Table 856:3 Material Requirements Tests Requirements Density (Gallon Weight) ±0.10 lb/gal [12 kg/m³] Viscosity ±7 KU (Krebs -Stormer) Viscosity ±0.5 P (Cone & Plate) Grind At least the standard % Non -Volatile Matter ±1.0% % Pigment (white) ±3.0% % Volume Non -Volatile Matter ±3.0% Infrared Spectrum Analyze Component A and Component B to verify for control purposes that submitted materials are identical to materials originally approved by the Resident Engineer. The Resident Engineer will reject materials that deviate from the original sample.
B.Multi -Polymer Composition Provide a two -component (Compound A and Compound B) multi -polymer resin material, 100 percent solids system with a volumetric mixing ratio of 2:1 (A:B) in accordance with Table 856:4: Table 856:4 Multi -Polymer Composition Pigment Composition Percent by Weight White: Titanium Dioxide Rutile (94% minimum purity, ASTM D476, Type III) 33 - 38 Multi -Polymer Resin 60.0 - 82.0 Yellow: Organic Non -Lead Yellow 7.0 - 8.0 Titanium Dioxide (ASTM D476, Type III) 14.0 - 17.0 Multi -Polymer Resin 77.0 - 79.0 Ensure that the pigment composition only consists of titanium dioxide. TRAFFIC STRIPE (MULTI -POLYMER) 856.03
1.Multi -Polymer Content (Component A) Test the multi -polymer content of the multi -polymer resin in accordance with ASTM D 1652 and calculate the weight per multi -polymer equivalent (WPE) for both white and yellow markings. Determine the multi -polymer content on a pigment free basis. Ensure the multi -polymer content meets the target value provided by the manufacturer, reviewed by the Department's Material Division, and approved by the Resident Engineer. The Resident Engineer will apply a tolerance of ±50 WPE to the target value to establish the acceptance range.
2.Amine Value (Component B) Determine the amine value of the curing agent in accorda nce with ASTM D 2074. Ensure the total amine value meets a target value provided by the manufacturer, reviewed by the Department's Material Division, and approved by the Resident Engineer. The Resident Engineer will apply a tolerance of ±50 WPE to the ta rget value to establish the acceptance range.
C.Sampling and Certification Submit a Type A certification to the Department’s Materials Division for each batch of stripe used on every project along with the Pretest Report for the glass beads. The Engineer may require a one (1) qt sample representing each batch of multi -polymer resin material be submitted to the Department’s Materials Division. Ensure the manufacturer’s multi -polymer striping is listed on the QPL. If the manufacturer makes any formulation ch anges to the multi -polymer striping material, ensure the manufacturer submits a written explanation of the changes to the formulation, the new physical and chemical properties for the resin, and a new safety data sheet (SDS) for the stripe to the Departmen t’s Traffic Engineer for re -evaluation and approval at least 30 days prior to its use.
D.Non -Reflectorized Contrast or Shadow Markings Ensure the marking material used for the contrast or shadow marking conforms to the same formulation, material, and pre-approved sampling requirements, except for the following items: Color pigments used Color requirements listed Use 24 lb per 100 ft2 min [10.8 kg per 10 m2], of a black, color -fast, medium mesh, anti -skid material
E.Glass Beads Provide double -drop glas s beads in accordance with Subsection 711.05, “Glass Beads for Traffic Paint.”
856.03 Equipment
Use equipment that sprays the multi -polymer materials in the manufacturer recommended proportions. Mount the equipment on a truck capable of applying uniformly dimensioned markings as required by the Contract.
856.04 Traffic Stripe (Multi -Polymer)
Provide equipment with an automatic bead dispenser that continuously mixes and agitates the pavement marking material. Provide equipment capable of placing at least 40,000 ft [12,190 m] of the following types of markings per day to the alignment, spacing, and thickness shown on the Plans: Solid or skipped stripes 4 in to 6 in [100 m to 150 mm] wide; Markings other than solid or skipped lines; and A centerline and no -passing barrier stripe configuration consisting of one skip stripe with two solid stripes, simultaneously. Ensure the equipment places markings with clean edges of uniform cross section and thicknesses, with square ends, and with an approximate stripe -to-gap ratio of 1:3. Ensure the equipment uniformly and instantly places the beads on the markings. When placing beads on two adjacent stripes, ensure each stripe has an equivalent bead coverage rate and embedment. Provide equipment that heats and places each component within the component mix tolerances in accordance with the manufacturer recommendations. Use equipment fitted with a functional data logging system equipment listed on the QPL. Ensure the data logging system is operational, calibrated, and in use before striping operations. Provide the Engineer with a certification that the data logging system equipment meets the manufacturer’s recommended calibration, along with the manufacturer’s recommendations for equipment calibration f requency.
856.04 Construction Methods
A.Surface Preparation Remove foreign material from the road surface before applying the dual component material. Ensure the pavement surface is dry. Use abrasive blasting, grinding, or high -pres sure water jet to remove existing, temporary, or permanent traffic markings until at least 95 percent of the underlying pavement is visible, unless otherwise specified by the manufacturer. Minimize interference between temporary pavement markings and the permanent dual -component pavement marking materials. Remove the curing compound at least 1 in [25 mm] beyond the width of the marking. After removing the curing compound, sweep and use a high -pressure air spray.
B.Pavement Temperature and Condition Apply dual component pavement markings to Portland cement concrete pavement surfaces at least 30 calendar days after paving, and new asphalt concrete pavement a minimum of three (3) calendar days after paving under the following conditions : On a dry roadway (no standing water or significant dampness), At an air and pavement surface temperature of at least 40 °F [4.4 °C] and rising, and At wind chill temperature of at least 35 °F [1.7 °C]. Measure the pavement surface temperatures 30 minutes before beginning striping installation. If critical temperatures exist, as determined by the Engineer, measure the pavement surface TRAFFIC STRIPE (MULTI -POLYMER) 856.04 temperature every 1 hr to 2 hr, or at shorter intervals as directed by the Engineer, until the end of the day. Measure th e pavement surface temperature with a standard surface temperature, infrared non - contact thermometer, or approved data logging system. In the event that temperatures and conditions are not conducive to the installation of permanent pavement markings within the specified time frame, including time for curing of PC pavement, the Engineer may allow and accept the installation of temporary pavement markings instead of permanent markings at no additional cost to the Department until the permanent markings can be installed. Maintain the temporary markings until temperatures and conditions are conducive for permanent striping. Furthermore, the Engineer may suspend the contract and/or milestone time until temperatures and/or conditions improve such that the perman ent markings can be placed. In order for time suspension to be considered all contract work which is unaffected by the inability to place the permanent paving markings must be completed.
C.Application Apply large glass beads at a co verage rate of at least 12 lb per 100 ft2 [5.4 kg per 10 m2] before applying standard beads. Apply standard glass beads at a coverage rate of at least 12 lb per 100 ft2 [5.4 kg per 10 m2]. For hand -machine applied markings, apply large glass beads at a c overage rate of at least 12 lb per 100 ft2 [5.4 kg per 10 m2] before applying standard beads. Apply standard glass beads at a coverage rate of at least 12 lb per 100 ft2 [5.4 kg per 10 m2]. Alternatively, for Portland cement concrete pavement apply a non -reflectorized contrast marking, of the same dimensions as the white skip lines shown on the plans, immediately after each upstream white skip line. Use a computerized data logging system for monitoring the application of multi -polymer stripe to measure the thickness of the multi -polymer stripe. Collect data for any pavement marking application of 1,000 linear feet or greater. Report the following data as an average for each 1,000 feet: Application speed to the nearest 0.1 mph Weight (lbs) and/or volume (g allons as measured through a piston displacement pump mechanism) amount of material used by color Weight (lbs) of glass beads/elements used Pavement surface temperature (°F) Air temperature (°F) Dew point (°F) Humidity (%) Material application rates and fi lm thickness over the section painted. In addition to the above data, record the highway number with the beginning and ending reference point rounded to the nearest hundredth of a mile, project number, and job piece number. Provide an electronic or printe d record of the data to the Engineer daily. The Engineer may determine that more frequent submission is necessary, particularly if equipment malfunctions occur. Produce either the printed or electronic records in their final form prior to the records bei ng removed from the striping equipment (i.e. the Contractor presents this to the Engineer in the field). If only one record is produced at the striping equipment, the other may be produced in an office. However,
856.04 Traffic Stripe (Multi -Polymer)
present the first record to the Engineer p rior to any of the data entering an office environment. Ensure the electronic record is a comma or space delimited text file, adequate for insertion into a computerized spreadsheet software package, or a spreadsheet format acceptable to the Engineer. Prov ide the Engineer the above records for all longitudinal non -handwork line painted. Prior to the start of striping operations, travel a distance of 100 ft to verify the consistency of physical and electronic measurements of distance traveled. Ensure longitu dinal and edge line markings meet the minimum mil thickness values in accordance with Table 856:5 for concrete pavement, and Table 856:6 for asphalt pavement: Table 856:5 Minimum Mil Thickness (PC Pavement) mils Contract Unit Price Adjustment ≥ 20 100% 19 - 18 90% 17 - 16 75% 15 - 14 50% < 14 Remove and replace Table 856:6 Minimum Mil Thickness (AC Pavement) mils Contract Unit Price Adjustment ≥ 25 100% 24 - 23 90% 22 - 21 75% 20 - 19 50% < 19 Remove and replace
D.Performance Period Ensure markings and replacement markings meet the Contract requirements for at least 30 calendar days. Within 30 calendar days of notification by the Resident Engineer, remove and replace non -compliant pavement markings at no additional cost to the Depart ment.
E.Retroreflectivity Measure stripes with a portable or mobile reflectometer that uses 30 m geometry in accordance with ASTM E1710 and the manufacturer recommendations. Ensure the manufacturer calibrates the reflectometer annua lly. Keep the annual calibration certification with the reflectometer. All reflectometer readings must be in conjunction with line thickness gauge measurements. TRAFFIC STRIPE (MULTI -POLYMER) 856.04
1.Minimum Retro -reflectivity Ensure longitudinal markings on Portland cement concrete and a sphalt concrete pavement surfaces meet the minimum retro -reflectivity values in accordance with Table 856:7.
2.Measurement Measure retroreflectivity of markings within thirty (30) calendar days of placement, after removing loose beads. The following lot sizes will apply to both portable and mobile reflectometer methods. For portable reflectometer the random locations will be determined and then readings taken at those spots. For mobile reflectometers the average value of reflectivity will be taken for the full length of each lot and used to compute that lots acceptance. Measure marking retro -reflectivity in the direction of traffic, except the Department will allow yellow skip stripes to be measured in either direction of travel. One measurement (multiple readings) will represent each 2,500 ft [762 m] lot of single -color longitudinal stripe. The Department will not allow readings for adjacent lots to be taken closer than 1,000 ft [305 m] from each other. For solid longitu dinal stripes, one measurement represents the average of five readings per lot, taken at 3 ft [1 m] intervals along a randomly selected 15 ft [4.5 m] section of solid stripe. For longitudinal skip stripes, one measurement represents the average of six rea dings per lot, two readings taken from each of three adjacent skip stripes. The Department will not allow readings taken within the first or last 1 ft [0.3 m] of skip stripes. For non -compliant measurements, the Engineer will require additional measuremen ts to determine the extent of non -compliance. The Department will not require measurements of the following: Stop -bars, crosswalks, gores, words, symbols; Longitudinal striping installed using hand line machines; and Projects less than 1 mi [1.6 km] long. Obtain the Engineer’s approval in writing before using a mobile retro -reflectometer system as an alternative measurement method.
3.Acceptance Submit final retroreflectivity measurements to the Resident Engineer for acceptance. Include the date and time of reflectometer calibration, location (GPS coordinates), line color, and date of each measurement. The Department will consider unmeasured stripes non -compliant. The Resident Engineer will provide notification of non -compliance with the minimum retroref lectivity values. Remove and replace non -compliant stripe sections at no additional cost to the Department.
856.05 Traffic Stripe (Multi -Polym Er)
For quality assurance, the Department will measure retroreflectivity with a Delta Light & Optics, Model LTL X portable reflectometer. If the Depar tment and the Contractor measurements differ by greater than 10 percent, the Department will use its measurements for acceptance. The Resident Engineer may accept striping quantities less than 2,500 ft [762 m] by visual inspection. Table 856:7 Minimum Ret ro-reflectivity (PC Pavement) White Yellow mcd/m2/lx Pay Adjustment mcd/m2/lx Pay Adjustment ≥ 450 * 100% ≥ 300 * 100% 400 - 449 * 75% 275 - 299 * 75% 250 - 399 * 50% 225 - 274 * 50% < 250 Remove and replace < 225 Remove and replace * The Contractor has the option to replace the stripe at no additional cost to the Department, or take the deduction. Table 856:8 Minimum Retro -reflectivity (AC Pavement) White Yellow mcd/m2/lx Pay Adjustment mcd/m2/lx Pay Adjustment ≥ 400 * 100% ≥ 250 * 100% 350 - 399 * 75% 225 - 249 * 75% 200 - 349 * 50% 175 - 224 * 50% < 200 Remove and replace < 175 Remove and replace * The Contractor has the option to replace the stripe at no additional cost to the Department, or take the deduction.
856.05 Method of Measurement
The Resident Engineer will measure the length of traffic stripe using a 4 in [100 mm] standard width. For traffic stripes narrower or wider than 4 in [100 mm], the Resident Engineer will make a proportional adjustment based on the 4 in [100 mm] standard width. The Resident Engineer will count arrows by each head. CONSTRUCTION ZONE PAVEMENT MARKINGS 857.03
856.06 Basis of Payment
The Department will pay for each pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.TRAFFIC STRIPE (MULTI -POLYMER) (4 ″ WIDE) Linear Foot [Meter]
A.TRAFFIC STRIPE (MULTI -POLYMER) (6 ″ WIDE) Linear Foot [Meter]
A.TRAFFIC STRIPE (MULTI -POLYMER) (8 ″ WIDE) Linear Foot [Meter]
A.TRAFFIC STRIPE (MULTI -POLYMER) (12 ″ WIDE) Linear Foot [Meter]
A.TRAFFIC STRIPE (MULTI -POLYMER) (24 ″ WIDE) Linear Foot [Meter]
B.TRAFFIC STRIPE (MULTI -POLYMER) (SYMBOLS, WORDS, ETC.) Each Include the cost of preparing the pavement in the contract unit price for the relevant pay item. The Department will pay for the replacement of pavement markings damaged by snow and ice removal. The Department will pay for stripe removal in accordance with Section 857, “Construction Zone Pavement Markings.” SECTION 857 CONSTRUCTION ZONE PAVEMENT MARKINGS
857.01 Description
This work consists of providing, placing, and removing pavement markings on detours and roadways accessed by traffic during construction.
857.02 Materials
Provide paint, removable pavement marking tape, or other construction zone pavement marking material as shown on the Plans, or as directed by the Resident Engineer. Provide traffic stripe materials in accordance with Section 711, “T raffic Stripe.” Provide potable water for hydroblasting. Do not use lake or river water. Do not use chemicals, abrasive materials, grinders, detergents or salt water.
857.03 Equipment
A.General Apply pavement markings in accordance with the manufacturer’s recommendations. Use a paint machine and a bead dispenser in accordance with Subsection 854.03, “Equipment,” to apply the painted construction traffic stripe. Use equipment for removing pavement markings that will no t damage the pavement surface or pavement material texture.
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 888–896 of 935.