ITEM 642 TRAFFIC PAINT
642.01
Description
642.02
Materials
642.03
Equipment
642.04
Application
642.05 Basis of
Payment
642.01
Description. This work
consists of furnishing and applying fast dry water-based traffic paint or fast
dry water-based traffic paint for cold weather applications according to Item 641, 740.01, 740.02, 740.09,
and the additional requirements specified below.
642.02 Materials.
Furnish
materials 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
application is required when air and pavement temperatures are between 35 °F (2
°C) and 50 °F (10 °C) obtain approval from the Engineer and apply only
pre-qualified Type 1A cold weather traffic paint materials. Apply
traffic paint according to the manufacturer’s recommendations and protect line
from tracking.
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 1A 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 |
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 1:50 of
spent solvents to virgin paint. Ensure that the maximum concentration of
spent solvents in the striping equipment tanks is maximum 2 percent. Add
spent solvents during the loading of the striping equipment.
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) for Type 1 traffic paint. Apply
glass beads at a minimum rate of 8.0 pounds per 100 square feet (3.9 kg per 10
m2) for Type 1A traffic paint.
Ensure
temperature of the paint at the discharge point is within the range recommended
by paint manufacturer.
Replace
unsatisfactory markings according to 641.11.
Furnish
the Engineer daily, biweekly and final DLS reports according to 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, ____ inch (_____ mm), Type ___
642
Mile (Kilometer)
Lane Line, ____ inch (_____ mm), Type __
642
Mile
(Kilometer) Center Line, Type ___
642
Foot
(Meter)
Channelizing Line, ____ inch (_____ mm), Type
___
642 Foot
(Meter) Stop Line, Type ___
642
Foot
(Meter)
Yield Line, Type____
642
Foot
(Meter)
Crosswalk Line, Type ___
642
Foot
(Meter)
Transverse/Diagonal Line, Type ____
642
Foot (Meter)
Curb Marking, Type ___
642
Square
Foot
Island Marking, Type ___
(Square Meter)
642
Each
Handicap Symbol Marking, Type ___
642
Each
Railroad Symbol Marking, Type ___
642
Each
School Symbol Marking, __ inch (___ mm),
Type ___
642
Each
Bicycle Lane Symbol Marking, Type____
642
Each
Shared Lane Marking, 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