3.2.2
Painting
Apply paint pneumatically with approved equipment at rate of coverage
specified herein. Provide guidelines and templates as necessary to control
paint application. Take special precautions in marking numbers, letters,
and symbols. Manually paint numbers, letters, and symbols. Sharply
outline all edges of markings. The maximum drying time requirements of the
paint specifications will be strictly enforced, to prevent undue softening
of bitumen, and pickup, displacement, or discoloration by tires of traffic.
Discontinue painting operations if there is a deficiency in drying of the
markings until cause of the slow drying is determined and corrected.
3.2.3
Reflective Media
Application of reflective media shall immediately follow the application of
paint. Accomplish drop-on application of the glass spheres to ensure even
distribution at the specified rate of coverage. Should there be
malfunction of either paint applicator or reflective media dispenser,
discontinue operations until deficiency is corrected.
3.2.4
Thermoplastic Compound
Place thermoplastic pavement markings upon dry pavement. At the time of
installation the pavement surface temperature shall be a minimum of 5
degrees C 40 degrees F and rising. Thermoplastics, as placed, shall be
free from dirt or tint. Apply all centerline, skipline, edgeline, and other
longitudinal type markings with a mobile applicator. Place all special
markings, crosswalks, stop bars, legends, arrows, and similar patterns with
a portable applicator, using the extrusion method.
3.2.5
Raised Pavement Markers
Prefabricated markers shall be aligned carefully at the required spacing or
as directed and permanently fixed in place by means of epoxy adhesives. To
ensure good bond, areas where markers will be set shall be thoroughly
cleaned by water blasting and use of compressed air prior to applying
adhesive.
3.3
FIELD TESTING AND INSPECTION
3.3.1
Sampling and Testing
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NOTE: The material specifications do not provide for
obtaining certified production data, and the
importance of verification testing for each batch
where appreciable quantities are involved is
emphasized. Only when the factors of time, value of
material, and its application versus cost of testing
and end use of the material justify a waiver of
testing will certification be acceptable.
For projects 3500 square meters 4000 square yards in
painted surface area, requirements for Contractor's
testing should be used ad the next to last bracketed
sentence should be left in. For projects less that
3500 square meters 4000 square yards, delete the
next to last sentence and include the last bracketed
sentence that will allow for Government testing is
SECTION 02761N
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