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f � <br /> eA <br /> 771pqw"F�7 ,7 -Mo <br /> a <br /> Iv 'AA <br /> 12 . The warm mix technology, if used . <br /> 334-3 .3 Mix Design Revisions : During production, the Contractor may request a target <br /> value revision to a mix design , subject to meeting the following requirements : ( 1 ) the target <br /> change falls within the limits defined in Table 334 .4 , (2) appropriate data exists demonstrating <br /> that the mix complies with production air voids specification criteria, and ( 3 ) the mixture <br /> gradation meets the basic gradation requirements defined in 334 - 3 . 2 . 2 . <br /> Table 334.4 <br /> Limits for Potential Adjustments to Mix Design Target Values <br /> Characteristic Limit from Original Mix Desi <br /> gn <br /> No . 8 sieve and Coarser ± 5 . 0 percent <br /> No . 16 sieve ± 4 . 0 percent <br /> No . 30 sieve ± 4 . 0 percent <br /> No . 50 sieve ± 3 . 0 percent <br /> No . 100 sieve ± 3 . 0 percent <br /> No . 200 sieve ± 1 . 0 percent <br /> Asphalt Binder Content ± 0 . 3 percent <br /> Each Component of Aggregate Blend ± 5 . 0 percent <br /> Reductions to the asphalt binder content will not be permitted if the VMA during production is lower than 1 . 0 percent below <br /> he design criteria. <br /> Z) Revisions to FG5 mixtures to be determined by the Engineer, <br /> Submit all requests for revisions to mix designs , along with supporting <br /> documentation , to the Engineer. In order to expedite the revision process , the request for revision <br /> or discussions on the possibility of a revision may be made verbally, but must be followed up by <br /> a written request. The verified mix design will remain in effect until the Engineer authorizes a <br /> change . In no case will the effective date of the revision be established earlier than the date of the <br /> first communication between the Contractor and the Engineer regarding the revision . <br /> A new design mix will be required if aggregate sources change, or for any <br /> substitution of an aggregate product with a different aggregate code, unless approved by the <br /> Engineer. <br /> 334.4 Contractor Process Control. <br /> Assume full responsibility for controlling all operations and processes such that the <br /> requirements of these Specifications are met at all times . Perform any tests necessary at the plant <br /> and roadway for process control purposes . Enter all Process Control test data into the <br /> Department ' s Laboratory Information Management System (LIMS) database . The Engineer will <br /> not use these test results in the acceptance payment decision . <br /> Address in the Quality Control Plan how Process Control failures will be handled. When <br /> a Process Control failure occurs , investigate, at a minimum, the production process , testing <br /> equipment and/or sampling methods to determine the cause of the failure, and make any <br /> necessary changes to assure compliance with these Specifications . Obtain a follow up sample <br /> immediately after corrective actions are taken to assess the adequacy of the corrections . In the <br /> event the follow-up Process Control sample also fails to meet Specification requirements , cease <br /> production of the asphalt mixture until the problem is adequately resolved to the satisfaction of <br /> the Quality Control Manager. <br /> - 88 - <br /> FPID (S ) : 423186- 1 - 5 8 - 01 <br />