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1 The Contractor may choose to utilize recycled asphalt pavement (RAP) in the production <br /> 2 of HMA. The RAP may be from pavements removed under the Contract, if any, or <br /> 3 pavement material from an existing stockpile. <br /> I 4 <br /> 5 The Contractor may use up to 20 percent RAP by total weight of HMA with no additional <br /> I 6 sampling or testing of the RAP. The RAP shall be sampled and tested at a frequency of <br /> 7 one sample for every 1,000 tons produced and not less than ten samples per project. <br /> 8 The asphalt content and gradation test data shall be reported to the Contracting Agency <br /> I 9 when submitting the mix design for approval on the QPL. The Contractor shall include <br /> 10 the RAP as part of the mix design as defined in these Specifications. <br /> 11 <br /> 12 The grade of asphalt binder shall be as required by the Contract. Blending of asphalt <br /> 13 binder from different sources is not permitted. <br /> 14 <br /> I <br /> 15 The Contractor may only use warm mix asphalt (WMA) processes in the production of <br /> 16 HMA with 20 percent or less RAP by total weight of HMA. The Contractor shall submit to <br /> 17 the Engineer for approval the process that is proposed and how it will be used in the <br /> I <br /> 18 manufacture of HMA. <br /> 19 <br /> 20 Production of aggregates shall comply with the requirements of Section 3-01. <br /> 21 Preparation of stockpile site, the stockpiling of aggregates, and the removal of <br /> 22 aggregates from stockpiles shall comply with the requirements of Section 3-02. <br /> 23 <br /> I 24 5-04.2(1) How to Get an HMA Mix Design on the QPL <br /> 25 If the contractor wishes to submit a mix design for inclusion in the Qualified Products List <br /> 26 (QPL), please follow the WSDOT process outlined in Standard Specification 5-04.2(1). <br /> I 27 <br /> 28 5-04.2(1)A Vacant <br /> 29 <br /> • <br /> 30 5-04.2(2) Mix Design — Obtaining Project Approval <br /> 31 No paving shall begin prior to the approval of the mix design by the Engineer. <br /> 32 <br /> I33 Nonstatistical evaluation will be used for all HMA not designated as Commercial HMA <br /> 34 in the contract documents. <br /> 35 <br /> I 36 Commercial evaluation will be used for Commercial HMA and for other classes of HMA <br /> 37 in the following applications: sidewalks, road approaches, ditches, slopes, paths, trails, <br /> I <br /> 38 <br /> 39 gores, prelevel, and pavement repair. Other nonstructural applications of HMA accepted <br /> by commercial evaluation shall be as approved by the Project Engineer. Sampling and <br /> 40 testing of HMA accepted by commercial evaluation will be at the option of the Project <br /> 41 Engineer. The Proposal quantity of HMA that is accepted by commercial evaluation will <br /> 42 be excluded from the quantities used in the determination of nonstatistical evaluation. <br /> 43 <br /> I 44 Nonstatistical Mix Design. Fifteen days prior to the first day of paving the contractor <br /> 45 shall provide one of the following mix design verification certifications for Contracting <br /> 46 Agency review; <br /> g Y <br /> 47 <br /> 1 <br /> I N. BROADWAY TRANSIT IMPROVEMENT PROJECT <br /> STATE FUND#GCB2316; COE WO#3644 73 August 8, 2018 <br />