642.01 Description. This work consists of furnishing and applying alkyd or water-based traffic paint according to Item 641, 740.01, 740.02, 740.09, and the additional requirements specified below.
642.02 Materials. Furnish materials from the Department’s Approved List conforming to:
Traffic Paint............................................................ 740.02
Glass Beads, Type A.............................................. 740.09
The Engineer may obtain random samples from the application equipment. Furnish the manufacturer’s identification information for the sampled liquid materials. The Department will test the quality assurance sample for conformance to the manufacturer’s production ranges. Samples not meeting the manufacturer’s production ranges will require the Contactor to re-apply, at his expense, any markings using that sample. All other untested batches will become not approved and will either require testing or re-application.
Do not apply paints that have exceeded the manufacturer’s shelf life. Do not use glass beads that are wet.
642.03 Equipment. Use equipment capable of applying the traffic paint as recommended by the manufacturer and applying glass beads at the time of line placement. Furnish a calibrated measuring device acceptable to the Engineer to measure the traffic paint in the striper tanks.
Equip all striping equipment for center line, lane line and edge line markings with a computerized Data Logging System (DLS) conforming to 641.04 when the length of marking exceeds 0.5 miles (0.8 km) of continuous line equivalent.
Furnish written documentation to the Engineer for the equipment’s operational capabilities from the equipment manufacturer.
642.04 Application. Apply pavement markings only when the surface is clean and dry in accordance with the paint manufacturer’s written application instructions.
If any project safety requirements require application below 50 °F (10 °C), obtain approval from the Engineer and apply only pre-qualified alkyd type materials. Apply paint and block from traffic tracking per alkyd paint manufacturer’s recommendations.
Keep the paint thoroughly mixed during application.
Apply 20 mil (0.51 mm) thick traffic paint Type 1 at the following rates:
|
20 Mil Thickness |
Line Width (inch) |
||||
|
4 |
6 |
8 |
12 |
24 |
|
|
Gallon per Mile of Line |
|||||
|
Solid Line |
22 |
33 |
44 |
66 |
132 |
|
Broken Line |
5.5 |
8.25 |
11 |
16.5 |
33 |
|
Dotted Line |
5.5 |
8.25 |
11 |
16.5 |
33 |
|
Areas, Symbols, Words |
1.25 gallon per 100 square feet |
||||
|
0.51 mm Thickness |
Line Width (mm) |
||||
|
100 |
150 |
200 |
300 |
600 |
|
|
Liter per Kilometer of Line |
|||||
|
Solid Line |
50 |
75 |
100 |
150 |
300 |
|
Broken Line |
12.5 |
19 |
25 |
38 |
75 |
|
Dotted Line |
12.5 |
19 |
25 |
38 |
75 |
|
Areas, Symbols, Words |
0.51 L/m² |
||||
Apply 15 mil (0.38 mm) thick traffic paint Type 2 at the following rates:
|
15 Mil Thickness |
Line Width (inch) |
||||
|
4 |
6 |
8 |
12 |
24 |
|
|
Gallon per Mile of Line |
|||||
|
Solid Line |
16 |
24 |
32 |
48 |
96 |
|
Broken Line |
4 |
6 |
8 |
12 |
24 |
|
Dotted Line |
4 |
6 |
8 |
12 |
24 |
|
Areas, Symbols, Words |
0.94 gallon per 100 square feet |
||||
|
0.38 mm Thickness |
Line Width (mm) |
||||
|
100 |
150 |
200 |
300 |
600 |
|
|
Liter per Kilometer of Line |
|||||
|
Solid Line |
37 |
56 |
74 |
111 |
222 |
|
Broken Line |
9.3 |
14 |
18.6 |
28 |
56 |
|
Dotted Line |
9.3 |
14 |
18.6 |
28 |
56 |
|
Areas, Symbols, Words |
0.38 L/m² |
||||
Increase the first application of traffic paint Type 2 on new asphalt pavement surfaces by 25 percent over the specified rate.
Do not dilute the paint. However, the Contractor may add spent traffic paint solvents, generated during performance of this
work, to virgin traffic paint. If adding
spent solvents, add them in a maximum ratio of
Apply glass beads to the wet paint so that the beads are embedded and retained in the paint and provide uniform retroreflectivity in the paint surface. Apply glass beads at a minimum rate of 15 pounds per 100 square feet (7.3 kg per 10 m2) of traffic paint Type 1. Apply glass beads at a minimum rate of 7.5 pounds per 100 square feet (3.7 kg per 10 m2) of traffic paint Type 2.
Ensure that the temperature of fast dry paint at the discharge point is within the range recommended by the paint manufacturer.
Replace unsatisfactory markings as per 641.11.
Furnish the Engineer daily, biweekly and final DLS reports as per 641.04..
Perform traffic control operations for all 642 pavement markings according to 614.12 and MT-99.20M, but provide for center line, edge line, lane line and channelizing line traffic control equipment according to MT-99.20M equipment requirements for center line, longer than 2 minute dry.
Payment for this work shall be included in the 642 price per mile for Center Line, Edge Line and Lane Line and the 642 price per foot for channelizing Line.
642.05 Basis of Payment. The Department will pay for accepted quantities at the contract prices, or prices adjusted according to 641.11, measured according to 641.12, with the provisions specified in 641.13, and as follows:
Item unit Description
642 Mile (Kilometer) Edge Line, Type ___
642 Mile (Kilometer) Lane Line, Type ___
642 Mile (Kilometer) Center Line, Type ___
642 Foot (Meter) Channelizing Line, Type ___
642 Foot (Meter) Stop Line, Type ___
642 Foot (Meter) Crosswalk Line, Type ___
642 Foot (Meter) Transverse/Diagonal Line, Type ____
642 Foot (Meter) Curb Marking, Type ___
642 Square
Foot
(Square Meter)
642 Each Handicap Symbol Marking, Type ___
642 Each Railroad Symbol Marking, Type ___
642 Each School Symbol Marking, __ inch (___ mm),
Type ___
642 Foot (Meter) Parking Lot Stall Marking, Type ___
642 Each Lane Arrow, Type ___
642 Each Word on Pavement, ___ inch
(___
mm), Type ___
642 Foot (Meter) Dotted Line, ___ inch (___mm), Type ___
642 Foot
or Square Foot Removal of Pavement Marking
(Meter or Square
Meter), or Each
642 Lump Sum Two-Way Radio Equipment