SOW Attachment 1 - Specs 32 17 23 Pavement Markings.docx

08-01-16

SECTION 32 17 23

PAVEMENT MARKINGS

GENERAL

SUMMARY

Section Includes:

All paint under this contract shall contain reflective glass beads. Paint shall be placed on pavement surfaces, in form of traffic lanes, parking bays, areas restricted to handicapped persons, crosswalks, and other detail pavement markings as defined in the scope of work.

APPLICABLE PUBLICATIONS

Comply with references to extent specified in this section.

Federal Specifications (Fed. Spec.):

TTB1325 - Beads (Glass Spheres) RetroReflective.

TTP1952F - Paint, Traffic and Airfield Marking, Waterborne.

Master Painters Institute (MPI):

No. 97 - Traffic Marking Paint, Latex.

SUBMITTALS

Submittal Drawings:

Show pavement marking configuration and dimensions.

Show international symbol of accessibility at designated parking spaces.

Manufacturer's Literature and Data:

Description of each product.

Application instructions.

Samples:

Paint: 200 mm (8 inches) square, each type and color.

Certificates: Certify products comply with specifications.

Qualifications: Substantiate qualifications comply with specifications.

Installer with project experience list.

QUALITY ASSURANCE

Installer Qualifications:

Regularly installs specified products.

Installed specified products with satisfactory service on five similar installations for minimum five years.

Project Experience List: Provide contact names and addresses for completed projects.

DELIVERY

Deliver products in manufacturer's original sealed packaging.

Mark packaging, legibly. Indicate manufacturer's name or brand, type, color, production run number, and manufacture date.

Before installation, return or dispose of products within distorted, damaged, or opened packaging.

STORAGE AND HANDLING

Store products indoors in dry, weathertight conditioned facility.

Protect products from damage during handling and construction operations.

FIELD CONDITIONS

Environment:

Product Temperature: Minimum 13 degrees C (55 degrees F) for minimum 48 hours before installation.

Surface to be painted and ambient temperature: Minimum 10 degrees C (50 degrees F) and maximum 35 degrees C (95 degrees F).

Field Measurements: Verify field conditions affecting traffic marking installation. Show field measurements on Submittal Drawings.

WARRANTY

Construction Warranty: FAR clause 52.24621, "Warranty of Construction."

PRODUCTS

SYSTEM PERFORMANCE

Design paint complying with specified performance:

Application: Fed. Spec. TTP1952.

PRODUCTS - GENERAL

Provide each product from one manufacturer and from one production run.

Low PollutantEmitting Materials: Paint used shall be water based an in accordance with the “Maine DOT Maintenance Fast-Dry Water-Based Traffic Paint” on file at the Traffic Section in Augusta.

Paints and coatings.

SANDBLASTING EQUIPMENT

Air compressor, hoses, and nozzles of proper size and capacity as required for cleaning painted surfaces. Compressor to provide minimum 0.08 cu. m/s (150 cfm) of air at pressure of minimum 625 kPa (90 psi) at each nozzle used.

PAINT

Paint: MPI No. 97. For obliterating existing markings comply with Fed. Spec. TTP1952. Provide minimum 18 L (5 gallons) containers.

REFLECTIVE GLASS BEADS

Beads: Comply with Fed. Spec. TTB1325, Type I, Gradation A. In regions of high humidity, coat beads with silicone or other suitable waterproofing material to ensure free flow. Provide glass beads in containers suitable for handling and strong enough to prevent loss during shipment.

EXECUTION

PREPARATION

Examine and verify substrate suitability for product installation.

Allow new pavement surfaces to cure for period of minimum 14 days before application of marking materials.

Protect existing construction and completed work from damage.

Clean substrates. Remove contaminants capable of affecting subsequently installed product's performance.

Remove dust, dirt, and other granular surface deposits by sweeping, blowing with compressed air, rinsing with water, or combination of these methods.

Completely remove rubber deposits, existing paint markings, and other coatings adhering to pavement with scrapers, wire brushings, sandblasting, mechanical abrasion, or approved chemicals as directed by Contracting Officer's Representative.

Scrub affected areas with several applications of trisodium phosphate solution or other approved detergent or degreaser, and rinse thoroughly after each application, Where oil or grease are present on old pavements to be marked, .

After cleaning, seal oilsoaked areas with cut shellac to prevent bleeding through new paint.

Clean and dry surface before pavement marking. Do not begin any marking until Contracting Officer's Representative inspected surface and gives permission to proceed.

INSTALLATION - GENERAL

Install products according to manufacturer's instructions and approved submittal drawings.

When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.

PAINT APPLICATION

Apply uniformly painted reflective marking of required colors, length, and width with true, sharp edges and ends on properly cured, prepared, and dried surfaces.

Apply paint at wet film thickness of 0.4 mm (0.015 inch). Disperse reflective glass beads evenly on wet paint at rate of 720 g/L (6 pounds per gal.) of paint. Apply paint in one coat. When directed by Contracting Officer's Representative, apply additional coats at markings showing light spots. Comply with paint manufacturer's maximum drying time requirements to prevent undue softening of asphalt, and pickup, displacement, or discoloration by tires of traffic.

When deficiency in marking drying occurs, discontinue paint operations until cause of slow drying is determined and corrected.

Remove and replace marking applied less than minimum material rates, deviates from true alignment, exceeds stipulated length and width tolerances, or shows light spots, faulty distribution of beads, smears, or other deficiencies or irregularities.

Remove marking by carefully controlled sandblasting, approved grinding equipment, or other approve method to prevent damage on applied surface.

DETAIL PAVEMENT MARKING APPLICATION

Apply Detail Pavement Markings, exclusive of actual traffic lane marking as defined in the Scope of Work.

Apply International Handicapped Symbol at indicated parking spaces.. Apply paint for symbol using suitable template that will provide pavement marking with true, sharp edges and ends.

TOLERANCES

Length and Width of Lines: Plus or minus 75 mm (3 inches) and plus or minus 3 mm (1/8 inch), respectively, in case of skip markings.

Length of intervals exceeding line length tolerance are not acceptable.

CLEANING

Remove excess paint before paint sets.

PROTECTION

Protect pavement markings from traffic and construction operations.

Protect newly painted markings from vehicular traffic until paint is dry and track free.

Place warning signs at beginning of wet line, and at points well in advance of marking equipment for alerting approaching traffic from both directions.

Place small flags or other similarly effective small objects near freshly applied markings at frequent intervals to reduce crossing by traffic.

Repair damage.

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