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2026 Pavement Maintenance Overlay Special Provisions <br />PW# 3860 SP - 59 March 5, 2026 <br />1 HMA Class and HMA Class ‰ <br />2       wearing course 0.30 feet <br />3       other courses 0.35 feet <br />4 HMA Class ⅜”0.15 feet <br />5 <br />6 On areas where irregularities or unavoidable obstacles make the use of mechanical <br />7 spreading and finishing equipment impractical, the paving may be done with other <br />8 equipment or by hand. <br />9 <br />10 When more than one JMF is being utilized to produce HMA, the material produced for <br />11 each JMF shall be placed by separate spreading and compacting equipment. The <br />12 intermingling of HMA produced from more than one JMF is prohibited. Each strip of HMA <br />13 placed during a work shift shall conform to a single JMF established for the class of HMA <br />14 specified unless there is a need to make an adjustment in the JMF. <br />15 <br />16 5-04.3(8) Aggregate Acceptance Prior to Incorporation in HMA <br />17 For HMA accepted by nonstatistical evaluation, the aggregate properties of sand <br />18 equivalent, uncompacted void content, and fracture will be evaluated in accordance with <br />19 Section 3-04. Sampling and testing of aggregates for HMA accepted by commercial <br />20 evaluation will be at the option of the Engineer. <br />21 <br />22 5-04.3(9) HMA Mixture Acceptance <br />23 Acceptance of HMA shall be as provided under nonstatistical, or commercial evaluation. <br />24 <br />25 Nonstatistical evaluation will be used for the acceptance of HMA unless Commercial <br />26 Evaluation is specified. <br />27 <br />28 Commercial evaluation will be used for Commercial HMA and for other classes of HMA in <br />29 the following applications: sidewalks, road approaches, ditches, slopes, paths, trails, <br />30 gores, prelevel, temporary pavement, and pavement repair. Other nonstructural <br />31 applications of HMA accepted by commercial evaluation shall be as approved by the <br />32 Engineer. Sampling and testing of HMA accepted by commercial evaluation will be at the <br />33 option of the Engineer. <br />34 <br />35 The mix design will be the initial JMF for the class of HMA. The Contractor may request a <br />36 change in the JMF. Any adjustments to the JMF will require the approval of the Engineer <br />37 and may be made in accordance with this section. <br />38 <br />39 HMA Tolerances and Adjustments <br />40 1.Job Mix Formula Tolerances The constituents of the mixture at the time of <br />41 acceptance shall be within tolerance. The tolerance limits will be established as <br />42 follows: <br />43 <br />44 For Asphalt Binder and Air Voids (Va), the acceptance limits are determined <br />45 by adding the tolerances below to the approved JMF values. These values