P AVEMENT MARKING FILM DE SCRIPTION 634.
01.01 General. This work consists of furnishing and placing pavement marking tape and thermoplastic
marking material. M ATERIALS 634.
02.01 General. Material shall conform to the following Section:
Pavement Marking Film .......................................................................................................................................................... Section 732 P rotect marking film from unnecessary exposure to extreme temperatures before installation by proper packaging and storage. Marking film showing signs of physical damage or effects of prolonged storage which may affect its performance will be rejected. 634.
02.02 Thermoplastic Material. Use either hot applied or preformed thermoplastic materials for the
thermoplastic pavement marking items shown in the proposal. The thermoplastic pavement marking materials shall be capable of application on asphaltic surfaces and Portland cement concrete surfaces. CO NSTRUCTION 634.
03.01 General. Perform stakeout for the proper location of the pavement marking film.
T he pavement marking film shall be 100 mm (4 in.) wide unless noted otherwise. T he pattern for a broken line shall consist of a 3 m (10 ft) stripe and a 9 m (30 ft) gap. P rovide marking film colors and configurations according to the plans and the MUTCD. A pply the pavement marking film to new open- graded plantmix surface before public traffic is allowed on the freshly paved surface. 634.
03.02 Pavement Marking Tape. Inlay tape in the fresh surface during the final rolling of the mat before the
open- graded plantmix surface temperature falls below 71 °C (160 °F). A pply pavement marking tape as per manufacturer’s recommendations. W ithin 48 hours after application, the tape shall resist a minimum 35 N (8 lb) pull when tested according to Test Method No. Nev. T512. 634.
03.03 Thermoplastic Material Application. Produce thermoplastic markings that are straight and have
sharp edges: that are the specified color, width, and thickness; that have uniform retroreflectivity; and that are properly bonded to the pavement. (
a.Hot Applied Thermoplastic. Mechanically wire brush the existing surface which is to receive the thermoplastic material to remove all dirt and contaminants. Mechanically wire brush or abrasive blast clean the surface of new Portland cement concrete which is to receive the thermoplastic material to remove all laitance and curing compound. R emove and replace any existing pavement markings damaged by the blast cleaning or wire brushing. A pply the thermoplastic material to dry pavement surfaces and only when the surface temperature is above 10 °C (50 °F). A pply a primer, of the type recommended by the manufacturer of the thermoplastic material, to all asphaltic surfaces over 6 months old and to all Portland cement concrete surfaces. Apply the primer immediately in advance of, but concurrent with, the application of the thermoplastic material. Apply the primer at the application rate recommended by the manufacturer and do not thin. 634 PAVEMENT MARKING FILM Use preheaters with mixers having 360 degree rotation to preheat material. Apply the thermoplastic material to the pavement at a temperature between 200 ° C and 220 °C (400 ° F and 425 °F), unless a different temperature is recommended by the manufacturer. The thermoplastic material may be applied by either spray or extruded methods in a single uniform layer. Use stencils when applying thermoplastic material for pavement markings. Uniformly coat the pavement surface and fill the voids in the pavement surface with the thermoplastic material. Apply the thermoplastic material to dry pavement at a thickness of 2.5 to 3.8 mm (0.100 to 0.150 in.) for pavement markings and a minimum thickness of 1.5 mm (0.060 in.) for traffic stripes. Apply traffic beads immediately to the surface of the molten thermoplastic material at a rate of not less than 4 kg per 10 m2 (8 lb per 100 ft2).
b.Preformed Thermoplastic. Place the preformed thermoplastic material on clean and thoroughly dry surfaces and during anticipated dry weather. Mechanically wire brush or abrasive blast clean the surface of new Portland cement concrete which is to receive the thermoplastic material to remove all lai tance and curing compound. The pavement temperature and ambient air temperature shall be at or above 0 °C (32 ° F) at the time of application. Melt the properly positioned preformed thermoplastic using flame from a propane- type torch, according to the manufacturer’s recommendations, to bond the traffic markings permanently in place. If recommended by the manufacturer of the preformed thermoplastic pavement markings, apply a primer sealer on Portland cement concrete surfaces before application of the preformed thermoplastic material. Manufacturers of preformed thermoplastic pavement marking material are listed in the QPL. METHOD OF MEASUREMENT
634.04.01 Measurement. Pavement marking tape and t hermoplastic pavement marking will be measured by
the linear meter (linear foot), kilometer (mile) or square meter (square foot). Double solid and broken w/solid lines will be considered as a single line when measured for payment. Gaps in broken and dotted lines will be included in the linear measurement. BASIS OF PAYMENT
634.05.01 Payment. The accepted quantities, measured as provided above, will be paid for at the contract
price per unit of measurement for the pay items listed below that are shown in the proposal. Payment will be full compensation for the work prescribed in this Section. Payment will be made under: Pay Item Pay Unit Pavement Marking Tape (type) (Varies) ................................ ................................ ........................................ Square Meter (Square Foot) Pavement Marking Tape (type) (*) .................................................................................................................... Linear Meter (Linear Foot) Pavement Marking Tape (type) (*) .................................................................................................................................... Kilometer (Mile) Thermoplastic Pavement Marking (Varies) ................................ .................................................................... Square Meter (Square Foot) Thermoplastic Pavement Marking (*) ............................................................................................................... Linear Meter (Linear Foot) Thermoplastic Pavement Marking (*) ............................................................................................................................... Kilometer (Mile) * Width, pattern, or color as indicated in the proposal. SECTION 635 TEMPORARY PAVEMENT STRIPING TAPE DESCRIPTION
635.01.01 General. This work consists of furnishing, locating, placing, maintaining, and removing temporary
pavement striping tape. MATERIALS
635.02.01 General. The use of Type 1 tape is mandatory, unless Type 2 tape is approved for use on areas
appropriate for its use. Temporary striping tape shall be yellow or white as required. Type 1 tape shall conform to ASTM D4592, Type I. Type 1 tape is more readily removable from the surface and is recommended for use on surfaces which are not designated to be covered or removed, and on temporary areas where traffic patterns are to be altered. Type 2 tape shall conform to ASTM D4592, T ype II. Type 2 tape is much more difficult to remove from the surface and is recommended for use on surfaces which are to be covered or removed in which case removal of the tape will not usually be required. Use temporary striping tape listed in the QPL. CONSTRUCTION
635.03.01 General. Temporary striping tape used on interstate and full control of access freeways shall
be 100 mm (4 in.) wide for edge and lane lines, 200 mm (8 in.) wide for ramp gore lines, and 300 mm (12 in.) wide for stop bars and cross walks. Temporary striping tape used on other roads shall be 100 mm (4 in.) wide, except stop bars and cross walks shall be 300 mm (12 in.) wide. Place railroad markings according to the Standard Plans. The tape pattern for a broken line shall consist of a 3 m (10 ft) stripe and a 9 m (30 ft) gap. Temporary Striping Tape (Pilot Line) shall be 100 mm (4 in.) by 300 mm (12 in.) sections and shall be placed on traffic lane lines at 12 m (40 ft) intervals with the longer side parallel to traffic. Provide tape color and configurations according to the plans and the MUTCD. Place temporary striping tape before end of a working day and/or before allowing public traffic on the surface. Apply to surface which is dry, free of oils, grease, dust, and dirt. Tamp the tape down immediately after application in order to obtain a proper bond. Satisfactorily remove tape when required. Completely remove tape in such a manner that no residue or any other trace of the tape may be misconstrued by a driver to be a traffic marking under any condition of daylight, darkness, or wetness of the pavement. Portions of the temporary striping tape may have to be replaced during the life of the contract. The locations and extent of these replacements will be determined. No additional compensation will be made for replacing tape. METHOD OF MEASUREMENT
635.04.01 Measurement. Temporary striping tape will be measured by the linear meter (linear foot), including
gaps, or by the square meter (square foot). BASIS OF PAYMENT
635.05.01 Pa yment. The accepted quantities, measured as provided above, will be paid for at the contract
price per unit of measurement for the pay items listed below that are shown in the proposal. Payment will be full compensation for the work prescribed in this Sect ion. Payment will be made under: Pay Item Pay Unit Temporary Striping Tape (type) ................................ ........................................................................................ Linear Meter (Linear Foot) Temporary Striping Tape (Varies) ................................ ................................................................................. Square Meter (Square Foot)
Source: Nevada Standard Specifications for Road and Bridge Construction, 2014 Edition. Pages 457–458 of 610.