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<br />- <br /> <br />. <br /> <br />..., <br /> <br />. <br /> <br />mcd/lx.m2, respectively. The retroreflectance of the white and yellow pavement markings <br />at the end of the three year service life shall not be less than 150 mcd/lx'm2. All pedestrian <br />crosswalks, bike lane symbols and messages in a proposed bike lane shall attain initial <br />retroreflectivity of not less than 275 mcd/lx'm2. <br />971-7.5.2 Skid Resistance: The surface of the stripes and markings shall <br />provide a minimum skid resistance value of 35 BPN (British Pendulum Number) when <br />tested according to ASTM E 303. Bike lane symbols and pedestrian crosswalks shall <br />provide a minimum skid resistance value of 55 BPN. <br />971-7.5.3 Durability: Durability is the measured percent of thermoplastic <br />material completely removed from the pavement. The thermoplastic material line loss must <br />not exceed 5.0% at the end of the service life. <br />971-7.6 Application Properties: Application properties shall meet the requirements <br />of Section 711 . <br />971-7.7 Packing and Labeling: The thermoplastic material shall be packaged in <br />suitable biodegradable or thermo-degradable containers which will not adhere to the <br />product during shipment and storage. <br /> <br />.., <br /> <br />. <br /> <br />..., <br /> <br />. <br /> <br />I' <br /> <br />. <br /> <br />.., <br />. <br /> <br />,., <br />. <br /> <br />.., <br /> <br />971-8 Permanent Tape Materials for Pavement Stripes and Markings. <br />971-8.1 General: The materials for pavement stripes and markings shall consist of <br />white or yellow weather-resistant reflective film as specified herein. The markings are <br />divided into two classes: Standard and High Performance. The classes are differentiated by <br />their durability and retroreflectivity. The pigment, glass spheres, and filler shall be well <br />dispersed in the resin. However, the requirements delineated in this Specification and <br />Section 713 shall apply. The material shall be free from all skins, dirt and foreign objects. <br />971-8.2 Composition: The pavement stripes and markings shall consist of high- <br />quality plastic materials, pigments, and glass spheres uniformly distributed throughout their <br />cross-sectional area, with a reflective layer of spheres embedded in the top surface. <br />971-8.3 Skid Resistance: The surface of the stripes and markings shall provide a <br />minimum skid resistance value of 35 BPN (British Pendulum Number) when tested <br />according to ASTM E 303. Bike lane symbols and pedestrian crosswalks shall provide a <br />minimum skid resistance value of 55 BPN. <br />971-8.4 Thickness: The Qualified Products List will list the specified thickness of <br />each approved product. <br />971-8.5 Durability and Wear Resistance: When properly applied, the material shall <br />provide neat, durable stripes and markings. The materials shall provide a cushioned resilient <br />substrate that reduces sphere crushing and loss. The film shall be weather resistant and, <br />through normal wear, shall show no significant tearing, rollback or other signs of poor <br />adhesion. Durability is the measured percent of pavement marking material completely <br />removed from the pavement. The pavement marking material line loss must not exceed <br />5.0% of surface area at the end of its service life. <br />971-8.6 Conformability and Resealing: The stripes and markings shall be capable of <br />conforming to pavement contours, breaks and faults under traffic at pavement <br />temperatures recommended by the manufacturer. The film shall be capable of use for <br />patching worn areas of the same types of film in accordance with the manufacturer's <br />recommendations. <br />971-8.7 Tensile Strength: The stripes and markings shall have a minimum tensile <br />strength of 40 psi [275 kPa] when tested according to ASTM 0 638. A rectangular test <br />specimen 6 by 1 by 0.05 [150 by 25 by 1.5 mm] minimum thickness shall be tested at a <br /> <br />. <br /> <br />., <br />. <br /> <br />M <br /> <br />. <br /> <br />.., <br /> <br />. <br /> <br />...., <br /> <br />. <br /> <br />I I <br /> <br />. <br /> <br />....., <br /> <br />. <br /> <br />..., <br /> <br />. <br /> <br />~ <br /> <br />. <br /> <br />.... <br /> <br />. <br /> <br />., <br /> <br />. <br /> <br />-, <br /> <br />09/09 <br /> <br />01 000-1 95 <br /> <br />03-4122.F <br /> <br />. <br />