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<br />r, <br /> <br />. <br /> <br />.., <br /> <br />. <br /> <br />.., <br />. <br /> <br />r'1 <br />. <br /> <br />,...., <br />. <br /> <br />., <br /> <br />. <br /> <br />., <br />. <br /> <br />."1 <br /> <br />. <br /> <br />,., <br />. <br /> <br />,..., <br /> <br />. <br /> <br />..., <br /> <br />. <br /> <br />n <br /> <br />. <br /> <br />1 <br /> <br />. <br /> <br />,.., <br /> <br />. <br /> <br />-. <br /> <br />. <br /> <br />1"'"1 <br /> <br />. <br /> <br />..., <br /> <br />. <br /> <br />.., <br /> <br />. <br /> <br />'-' <br /> <br />. <br /> <br />Property Test Method Minimum Maximum <br />Stress Resistance <br />Specific Gravity Water displacement 1.9 2.3 <br />Indentation ASTM D 2240 * 40 75 <br />Resistance Shore Durometer, A2 <br />Impact Resistance ASTM D 256, Method A 1.0 N'm - <br />Flash Point ASTM D 92 4750F [245OC] - <br />*The durometer and panel shall be at 1100F [450C] with a 4.4 Ib [2.0 kg] load applied. <br />Instrument measurement shall be taken after 15 seconds. <br /> <br />971-5.5.1 Set To Bear Traffic Time: When applied at the temperatures and <br />thickness specified by Section 711, the thermoplastic shall set to bear traffic in not more <br />than two minutes. 971-5.5.2 Retroreflectivity: The white and yellow pavement markings <br />shall attain an initial retroreflectance of not less than 450 mcd/lx'mz and not less than 350 <br />mcd/lx'mz, respectively. The retroreflectance of the white and yellow pavement markings <br />at the end of the th ree year service life shall not be less than 1 50 mcd/lx' mZ. <br />971-5.5.3 Durability: Durability is the measured percent of thermoplastic material <br />completely removed from the pavement. The thermoplastic material line loss must not <br />exceed 5.0% at the end of the service life. <br />971-5.6 Application Properties: Application properties shall meet the requirements <br />of Section 711 . <br />971-5.7 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. The container of thermoplastic material shall weigh <br />approximately 50 Ib [23 kg]. The label shall warn the user that the material shall be heated <br />in the range as recommended by the manufacturer. <br /> <br />971-6 Thermoplastic Material-Hot Spray. <br />971-6.1 General: This work shall consist of furnishing and applying thermoplastic <br />material when the project requires refurbishing existing thermoplastic stripes. The <br />manufacturer shall utilize alkyd based materials only and shall have the option of <br />formulating the material according to his own specifications. However, the requirements <br />delineated in this Specification and Section 711 shall apply regardless of the type of <br />formulation used. <br />971-6.2 Composition: <br /> <br />Component White Yellow <br />Binder 25.0% minimum 25.0% minimum <br />lriOz (ASTM D 476 Type II Ructile) 10.0% minimum - <br />Glass Spheres 35.0% minimum 35.0% minimum <br /> % . . pel <br />Yellow Pigment minimum <br /> - <br /> manufacturer <br />Calcium Carbonate and Inert Filler 30.0% maximum 40.0% maximum <br />(No. 200 [75 flm] sieve) <br /> <br />971-6.3 Binders: The manufacturer shall have the option of formulating the material <br />according to his own specifications. However, the physical and chemical properties <br /> <br />09/09 <br /> <br />01 000-1 92 <br /> <br />03-4122.F <br />