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<br />..., <br /> <br />. <br /> <br />.., <br /> <br />. <br /> <br />337 ASPHALT CONCRETE FRICTION COURSES. <br />(REV 6-13-05) (FA 7-26-05) (1-06) <br /> <br />.., <br />. <br /> <br />SECTION 337 (Pages 269-278) is deleted and the following substituted: <br /> <br />,..., <br />. <br /> <br />SECTION <br />ASPHALT CONCRETE FRICTION COURSES <br /> <br />337 <br /> <br />, <br />. <br /> <br />337-1 Description. <br />Construct an asphalt concrete friction course pavement with the type of mixture <br />specified in the Contract, or when offered as alternates, as selected. This Section specifies <br />mixes designated as FC-5, FC-9.5, and FC-12.5. <br />Meet the plant and equipment requirements of Section 320, as modified herein. <br />Meet the general construction requirements of Section 330, as modified herein. <br /> <br />n <br />. <br /> <br />I""J <br />. <br /> <br />, <br /> <br />337-2 Materials. <br />337-2.1 General Requirements: Meet the requirements specified in Division III as <br />modified herein. The Engineer will base continuing approval of material sources on field <br />performance. <br />337-2.2 Asphalt Binder: Meet the requirements of Section 336, and any additional <br />requirements or modifications specified herein for the various mixtures. When called for in <br />the Contract Documents, use a PG 76-22 asphalt binder meeting the requirements of <br />916-1. For projects with a total quantity of FC-5, FC-9. 5, or FC-12. 5 less than 500 tons <br />[500 metric tons], the Contractor may elect to substitute a PG 76-22 for the ARB-12 or <br />ARB-5, meeting the requirements of 916-1 . <br />337-2.3 Coarse Aggregate: Meet the requirements of Section 901, and any <br />additional requirements or modifications specified herein for the various mixtures. <br />337-2.4 Fine Aggregate: Meet the requirements of Section 902, and any additional <br />requirements or modifications specified herein for the various mixtures. <br />337-2.5 Hydrated Lime: Meet the requirements of AASHTO M303 Type 1. <br />Provide certified test results for each shipment of hydrated lime indicating <br />compliance with the specifications. <br />337-2.6 Fiber Stabilizing Additive (Required for FC-5 only): Use either a mineral or <br />cellulose fiber stabilizing additive. Meet the following requirements: <br />337-2.6.1 Mineral Fibers: Use mineral fibers (made from virgin basalt, <br />diabase, or slag) treated with a cationic sizing agent to enhance the disbursement of the <br />fiber, as well as to increase adhesion of the fiber surface to the bitumen. Meet the <br />following requirements for physical properties: <br />1 . Size Analysis <br />Average fiber lengthO.25 inch [6.0 mm] (maximum) <br />Average fiber thickness...0.0002 inch [0.005 mm] (maximum) <br />2. Shot Content (ASTM C612) <br />Percent passing No. 60 [250 11m] Sieve 90 - 100 <br />Percent passing No.230 [63 11m] Sieve. 65 - 100 <br />Provide certified test results for each batch of fiber material indicating <br />compliance with the above tests. <br />337-2.6.2 Cellulose Fibers: Use cellulose fibers meeting the following <br /> <br />r, <br /> <br />. <br /> <br />. <br /> <br />., <br />. <br /> <br />.., <br /> <br />. <br /> <br />I"") <br />. <br /> <br />-, <br /> <br />. <br /> <br />,., <br />I <br /> <br />., <br />. <br /> <br />,., <br /> <br />. <br /> <br />., <br /> <br />. <br /> <br />..., <br /> <br />requirements: <br /> <br />. <br /> <br />.-. <br /> <br />09/09 <br /> <br />01000-72 <br /> <br />03-4122.F <br /> <br />- <br />