Attach___3_Pavement_Markings_02761_Specification.pdf

SECTION 02761

PAVEMENT MARKINGS

PART 1 - GENERAL

1.1 SUBMITTALS

1.1.1 Product Data

a. Paints for paved areas

1.1.2 Certificates

Furnish manufacturer's certificate of compliance.

a. Certificate of Compliance

1.1.3 Manufacturer’s Instructions

a. Paints for paved areas

Submit manufacturer's material safety data sheets.

1.3 DELIVERY AND STORAGE

Deliver paints in original sealed containers that plainly show the designated name, specification number, batch number, color, date of manufacturer, manufacturer's directions, and name of manufacturer. Provide storage facilities at the job site for maintaining materials at temperatures recommended by the manufacturer. Notify the Contracting Officer’s Technical Representative when paint is available for sampling.

1.3 WEATHER LIMITATIONS

Apply paint to clean, dry surfaces, and unless otherwise approved, only when air and pavement temperatures are above 5 degrees C and less than 30 degrees C. Maintain paint temperature within these same limits.

PART 2 - PRODUCTS

2.1 MATERIALS

Provide materials conforming to the requirements specified herein.

2.1.1 Paints for Paved Areas

Paint composition shall consist of a mixture of paint and glass beads and shall have the property of angular reflectivity. Paint shall maintain color and reflective action for at least two years after application. Traffic paint shall consist of a ready mixed pigmented binder in a one package system;

Type I, Alkyd type. The vehicle for Type I paint shall be Alkyd resin solids with driers in a solvent system.

2.1.2 Paint

Water emulsion paint shall be used on asphaltic pavements. Pigment contents shall be more than 60 percent by volume, non volatile residual shall be not less than 80 percent by volume, drying oil varnish of resin/drying oil combination type ration 1:1 oil resin.

2.1.2.1 Physical Properties

a. Specific gravity min.1650 grams per liter.

b. Viscosity stormer krebs at 20 % max. 95 K.U.

c. Drying time max. 20 seconds.

2.1.2.2 Paint Materials

If in compliance with the project specifications, manufacturers are:

a. MAX MEYER DUCO S.P.A.

Via Caserta al Bravo 80020 - Casavatore (NA) Tel: 081/7389247 Fax: 081/7372742

b. COLORIFICIO SAMMARINESE S.A.S.

Via del Cameraro, 7 47031 Repubblica di S. Marino Tel: 0549/905515 Fax: 0549/908453

c. FARBE S.P.A.

Via Udine, 63 33030 Majano (UD) Tel: 0432/959084 Fax: 0432/959219

2.1.3 Asphalt Concrete Primer

The primer for asphalt concrete pavements shall be a thermo-setting adhesive with a solid content of pigment reinforced synthetic rubber and synthetic plastic resin dissolved and/or dispersed in a volatile organic solvent. The solids content shall not be less than 10 percent by weight at 20 degrees C and 60 percent relative humidity. A wet film thickness of 125 microns plus or minus 1 micron shall dry to a tack-free condition in less than 5 minutes.

2.2 EQUIPMENT

Machines, tools, and equipment used in the performance of the work shall be approved by the Contracting Officer’s Technical Representative and maintained in satisfactory operating condition.

2.2.1 Paint Applicator

Provide hand-operated push-type applicator machine of a type commonly used for application of paint to pavement surfaces. Applicator machine shall be equipped with the necessary paint tanks and spraying nozzles, and shall be capable of applying paint uniformly at coverage specified.

PART 3 - EXECUTION

3.1 SURFACE PREPARATION

Allow new pavement surfaces to cure for a period of not less than thirty (30) days before application of marking materials. When earlier application is necessary because of operational requirements, the minimum curing time may be reduced by approval of the Contracting Officer’s Technical Representative. Thoroughly clean surfaces to be marked before application of the paint. Remove dust, dirt, and other granular surface deposits by sweeping, blowing with compressed air, rinsing with water, or a combination of these methods as required. Do not commence painting in any area until pavement surfaces are dry and clean and have been inspected and approved by the Contracting Officer’s Technical Representative.

3.2 APPLICATION

3.2.1 Rate of Application

Apply paint evenly to the pavement surface to be coated at the rate recommended by the manufacturer.

3.2.2 Painting

All pavement markings shall be white or yellow as selected by the Contracting Officer’s Technical Representative, 12 cm wide unless otherwise noted.

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. Size and shape of the signs shall conform to the Codice della Strada Italiano. 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. Minimum curing time of pavement markings shall be (2) hours.

3.3 FIELD TESTING AND INSPECTION

3.3.1 Inspection

Examine material at the job site to determine that it is the material referenced in the certificate of compliance. A certificate of compliance shall be accompanied by test results substantiating conformance to the specified requirements.

3.3.1.1 Surface Preparations and Application Procedures

Surface preparations and application procedures will be examined by the Contracting Officer’s Technical Representative to determine conformance with the requirements specified. Approve each separate operation prior to initiation of subsequent operations.

3.4 TRAFFIC CONTROL AND PROTECTION

Place warning signs near the beginning of the work site and well ahead of the work site for alerting approaching traffic from both directions. Place small markers along newly painted lines to control traffic and prevent damage to newly painted surfaces.

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SECTION 02761 PAVEMENT MARKINGS