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HomeMy WebLinkAbout32-1723-Pavement-Markings_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 1723 Pavement Markings 1 of 5 32 1723 Pavement Markings PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 WORK INCLUDED A. Provide all equipment and materials, and do all work necessary for pavement marking, including crosswalks and lines, handicap striping, and parking lot striping, as indicated on the Drawings and as specified. 1.3 RELATED WORK A. Examine Contract Documents for requirements that affect work of this Section. Other Specification Sections that directly relate to work of this Section include, but are not limited to: 1. Section 01 4500, QUALITY REQUIREMENTS; Inspection and testing. 2. Section 32 1216, ASPHALT PAVING; Asphaltic concrete paving, including asphaltic concrete base for concrete pavers. 3. Provision of waste management: Section 01 7419, Construction of Waste Management Plan. 4. Provision of General LEED requirements and forms: 01 8113 Sustainable Design Requirements. 1.4 REFERENCES A. Comply with applicable requirements of the following standards. Where these standards conflict with other specified requirements, the most restrictive requirements shall govern. 1. Federal Specifications (Fed. Spec.): TT-P-115E Paint, Traffic, Highway, White, and Yellow 2. Commonwealth of Massachusetts Highway Department (MHD): Specifications Standard Specifications for Highways and Bridges. 3. Rules and Specification, For excavation activity within the Town of Yarmouth, Public Works Department. 1.5 LAYOUT OF WORK A. The Contractor shall furnish to the Architect for approval a schedule of pavement marking operations in accordance with MHD Specifications Section 860. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 1723 Pavement Markings 2 of 5 1.6 SUBMITTALS A. Lists of proposed equipment, including descriptive data, and notifications of proposed Contractor actions as specified in this section. List of removal equipment shall include descriptive data indicating area of coverage per pass, pressure adjustment range, tank and flow capacities, and safety precautions required for the equipment operation. 1.7 DELIVERY AND STORAGE A. All materials shall be delivered and stored in sealed containers that plainly show the designated name, formula or specification number, batch number, color, date of manufacture, manufacturer's name, and directions, all of which shall be plainly legible at time of use. 1.8 EQUIPMENT A. All machines, tools and equipment used in the performance of the work shall be approved and maintained in satisfactory operating condition. Equipment operating on roads and runways shall display low speed traffic markings and traffic warning lights. 1.9 TRAFFIC CONTROL A. Traffic Controls: NOTE: Guidance for traffic control procedures can be obtained from the Manual on Uniform Traffic Control Devices (MUTCD) for Streets and Highways. B. Place traffic cones along newly painted lines to control traffic and prevent damage to newly painted surfaces. Remove when paint has dried fully. 1.10 WEATHER LIMITATIONS A. Pavement surface shall be free of snow, ice, or slush. Surface temperature shall be at least 40 degrees F and rising at the beginning of operations, except those involving shot or sand blasting. Operation shall cease during thunderstorms. Operation shall cease during rainfall, except for water blasting and removal of previously applied chemicals. Water blasting shall cease where surface water accumulation alters the effectiveness of material removal. PART 2 - PRODUCTS 2.1 MATERIALS A. All thermoplastic pavement markings furnished and applied by shall be in accordance with the Massachusetts Department of Public Works Specifications dated 1988, sections 860 and M7, sub section X7.01. 20 or latest revisions thereof. The raw materials used must be thoroughly melted, blended and mixed in the manufacturing process before delivery. B. Paint and reflective media shall be in sealed containers that plainly show the designated name, formula or specification number, batch number, color, date of manufacture, manufacturer's name, formulation number and directions, all of which shall be plainly legible at time of use. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 1723 Pavement Markings 3 of 5 2.2 PAINT MATERIAL A. The paint shall be homogeneous, easily stirred to smooth consistency, and shall show no hard settlement or other objectionable characteristics during a storage period of 6 months, color as indicated. Pavement marking paints shall comply with applicable state and local laws enacted to ensure compliance with Federal Clean Air Standards. Paint materials shall conform to the restrictions of the local Air Pollution Control District. 2.3 APPLICATION EQUIPMENT A. Application Equipment for Marking Materials 1. Application equipment shall provide continuous mixing and agitation of the material. Conveying parts of the equipment between the main material reservoir and the extrusion shoe or spray gun shall prevent accumulation and clogging. All parts of the equipment which come into contact with the material shall be easily accessible and exposable for cleaning and maintenance. All mixing and conveying parts up to and including the extrusion shoes and spray guns shall maintain the material at the required temperature with heat-transfer oil or electrical-element-controlled heat. 2. The application equipment shall be constructed to ensure continuous uniformity in the dimensions of the stripe. The applicator shall provide a means for cleanly cutting off stripe ends squarely and shall provide a method of applying "skip lines". The equipment shall be capable of applying varying widths of traffic markings. B. Mobile and Maneuverable: Application equipment shall be mobile and maneuverable to the extent that straight lines can be followed, and normal curves can be made in a true arc. The equipment used for the placement of pavement markings shall be of two general types: 1. Mobile Application Equipment: The mobile applicator shall be defined as a truck mounted, self-contained pavement marking machine that is capable of applying paint markings. The unit shall be equipped to apply the marking material at widths varying from 3 to 12 inches, and in varying thicknesses. The mobile unit shall be capable of operating continuously and of installing a minimum of 20,000 lineal feet of longitudinal markings in an 8-hour day. a. The mobile unit shall be equipped with an electronic programmable line pattern control system. The control system shall be capable of applying skip or solid lines in any sequence, through any and all of the extrusion shoes, or the spray guns, and in programmable cycle lengths. In addition, the mobile unit shall be equipped with an automatic counting mechanism capable of recording the number of lineal feet of markings applied to the pavement surface with an accuracy of 0.5 percent. 2. Portable Application Equipment: The portable applicator shall be defined as hand operated equipment, specifically designed for placing special markings such as crosswalks, stop bars, legends, arrows, and short lengths of lane, edge and centerlines. The portable applicator shall be equipped with all the necessary components so as to be capable of extruding a line of 3 to 12 inches in width, and in varying thicknesses and of generally uniform cross section. 2.4 SURFACE PREPARATION EQUIPMENT Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 1723 Pavement Markings 4 of 5 A. Sandblasting Equipment: shall include an air compressor, hoses, and nozzles of proper size and capacity for cleaning surfaces to be painted. The compressor shall be capable of furnishing not less than 150 cfm of air at a pressure of not less than 90 psi at each nozzle used, and shall be equipped with traps that will maintain the compressed air free of oil and water. B. Water blast Equipment: The water pressure shall be specified at 2600 psi at 140 degrees F in order to adequately clean the surfaces to be marked. C. Marking Removal Equipment: shall be mounted on rubber tires and shall be capable of removing markings from the pavement without damaging the pavement surface or joint sealant. Water blasting equipment shall be capable of producing an adjustable, pressurized stream of water. Sandblasting equipment shall include an air compressor, hoses, and nozzles. The compressor shall be equipped with traps to maintain the air free of oil and water. D. Shot blasting Equipment: shall be capable of producing an adjustable depth of removal of marking and pavement. Each unit shall be self-cleaning and self-contained, shall be able to confine dust and debris from the operation, and shall be capable of recycling the abrasive for reuse. E. Chemical Equipment: shall be capable of application and removal of chemicals from the pavement surface and shall leave only non-toxic biodegradable residue. 2.5 REFLECTIVE MEDIA DISPENSER A. The dispenser for applying the reflective media shall be attached to the paint dispenser and shall operate automatically and simultaneously with the applicator through the same control mechanism. The dispenser shall be capable of adjustment and designed to provide uniform flow of reflective media over the full length and width of the stripe at the rate of coverage specified in paragraph APPLICATION, at all operating speeds of the applicator to which it is attached. PART 3 - EXECUTION 3.1 SURFACE PREPARATION A. Surfaces to be marked shall be thoroughly cleaned before application of the pavement marking material. New pavement surfaces shall be allowed to cure for a period of not less than 48 hours before application of marking materials. B. Dust, dirt, and other granular surface deposits shall be removed by sweeping, blowing with compressed air, rinsing with water, or a combination of these methods. Rubber deposits, surface laitance and other coatings adhering to the pavement shall be completely removed. C. Where oil or grease are present on old pavements to be marked, affected areas shall be scrubbed with several applications of trisodium phosphate solution or other approved detergent or degreaser, and rinsed thoroughly after each application. After cleaning, oil-soaked areas shall be sealed with cut shellac to prevent bleeding through the new paint. Pavement surfaces shall be allowed to dry, when water is used for cleaning, prior to striping or marking. Surfaces shall be recleaned, when work has been stopped due to rain. 3.2 PRIMER Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 1723 Pavement Markings 5 of 5 A. After surface preparation has been completed the asphalt and/or concrete pavement surface shall be primed. The primer shall be applied with spray equipment. Primer materials shall be allowed to "set-up" prior to applying the final paint composition. The asphalt concrete primer shall be allowed to dry to a tack-free condition, usually occurring in less than 10 minutes. The Portland cement concrete primer shall be allowed to dry in accordance with the manufacturer's recommendations. To shorten the curing time of the epoxy resins an infrared heating device may be used on the concrete primer. 3.3 APPLICATION OF MARKING MATERIALS A. Marking materials shall be applied to clean, dry surfaces. Pavement marking materials shall be applied evenly to the pavement surface to be coated at a rate specified recommended by the paint manufacturer B. Paint: Paint shall be applied with approved equipment. Paint shall be applied to clean, dry surfaces, and only when air and pavement temperatures are above 40 degrees F and less than 95 degrees F. Paint temperature shall be maintained within these same limits. New asphalt pavement surfaces and new Portland concrete cement shall be allowed to cure for a period of not less than 30 days before applications of paint. Paint shall be applied with approved equipment at rate of coverage specified. The Contractor shall provide guidelines and templates as necessary to control paint application. Special precautions shall be taken in marking numbers, letters, and symbols. Edges of markings shall be sharply outlined. C. Guidelines and templates shall be employed as necessary to control paint application. Special precautions shall be taken in marking numbers, letters, and symbols. Edges of markings shall be sharply outlined. D. Maximum drying time requirements of the paint manufacturer shall be enforced to prevent undue softening of bitumen, and pickup, displacement, or discoloration by vehicle tires. E. If markings require more drying time than stated by the paint manufacturer, painting operations shall be discontinued until cause of the slow drying is determined and corrected. 3.4 PROTECTION OF MARKINGS A. Markings shall remain protected until sufficiently dry to bear traffic. END SECTION (THIS PAGE IS BLANK)