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CITY OF EVERETT SPECIAL PROVISIONS I <br /> 5-04.2(1)A Vacant I <br /> 5-04.2(2) Mix Design — Obtaining Project Approval <br /> Do NOT begin paving prior to the approval of the mix design by the Engineer. <br /> Nonstatistical evaluation will be used for all HMA not designated as Commercial <br /> HMA in the Contract Documents. <br /> Commercial evaluation will be used for Commercial HMA and for other classes of <br /> HMA in the following applications: sidewalks, road approaches, paths, trails, and <br /> pavement repair. Obtain approval from Project Engineer for other nonstructural <br /> applications of HMA accepted by commercial evaluation. Sampling and testing of <br /> HMA accepted by commercial evaluation will be at the option of the Project <br /> Engineer. The Proposal quantity of HMA that is accepted by commercial evaluation <br /> will be excluded from the quantities used in the determination of nonstatistical <br /> evaluation. <br /> Nonstatistical Mix Design. Provide fifteen days prior to the first day of paving one <br /> of the following mix design verification certifications for City review; <br /> a. The WSDOT Mix Design Evaluation Report from the current WSDOT QPL, <br /> or one of the mix design verification certifications listed below. <br /> b. The proposed HMA mix design on WSDOT Form 350-042 with the seal and <br /> certification (stamp & signature) of a valid licensed Washington State <br /> Professional Engineer. <br /> c. The Mix Design Report for the proposed HMA mix design developed by a <br /> qualified City or County laboratory that is within one year of the approval <br /> date.** <br /> **The mix design shall be performed by a lab accredited by a national authority <br /> such as Laboratory Accreditation Bureau, L-A-B for Construction Materials <br /> Testing, The Construction Materials Engineering Council (CMEC's) ISO 17025 <br /> or AASHTO Accreditation Program (AAP) and shall supply evidence of <br /> participation in the AASHTO: resource proficiency sample program. <br /> Mix designs for HMA accepted by Nonstatistical evaluation shall; <br /> a. Have the aggregate structure and asphalt binder content determined in <br /> accordance with WSDOT Standard Operating Procedure 732 and meet the <br /> requirements of Sections 9-03.8(2), except that Hamburg testing for ruts <br /> and stripping are at the discretion of the Engineer, and 9-03.8(6). <br /> b. Have anti-strip requirements, if any, for the proposed mix design <br /> determined in accordance with AASHTO T 283 or T 324, or based on <br /> historic anti-strip and aggregate source compatibility from previous WSDOT <br /> lab testing. <br /> At the discretion of the Engineer, City may accept verified mix designs older than <br /> 12 months from the original verification date with a certification from the Contractor <br /> that the materials and sources are the same as those shown on the original mix <br /> design. <br /> Commercial Evaluation: Approval of a mix design for "Commercial Evaluation" will <br /> be based on a review of the Contractor's submittal of WSDOT Form 350-042 (For <br /> commercial mixes, AASHTO T 324 evaluation is not required) or a Mix Design from <br /> the current WSDOT QPL or from one of the processes allowed by this section. <br /> Testing of the HMA by the City for mix design approval is not required. <br /> For the Bid Item Commercial HMA, select a class of HMA and design level of <br /> Equivalent Single Axle Loads (ESAL's) appropriate for the required use. <br /> Watermain Replacement"U" Division 5—SURFACE TREATMENTS October 1, 2019 <br /> AND PAVEMENTS <br /> WO No.—UP3698 SP-148 , <br />