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18TH STREET PEDESTRIAN IMPROVEMENTS 3741 RMT July 03, 2024 44 When used, the MTD/V shall mix the HMA after delivery by the hauling equipment and 1 prior to laydown by the paving machine. Mixing of the HMA shall be sufficient to obtain a 2 uniform temperature throughout the mixture. If a windrow elevator is used, the length of 3 the windrow may be limited in urban areas or through intersections, at the discretion of 4 the Engineer. 5 6 To be approved for use, an MTV: 7 8 1. Shall be self-propelled vehicle, separate from the hauling vehicle or paver. 9 2. Shall not be connected to the hauling vehicle or paver. 10 3. May accept HMA directly from the haul vehicle or pick up HMA from a windrow. 11 4. Shall mix the HMA after delivery by the hauling equipment and prior to 12 placement into the paving machine. 13 5. Shall mix the HMA sufficiently to obtain a uniform temperature throughout the 14 mixture. 15 16 To be approved for use, an MTD: 17 18 1. Shall be positively connected to the paver. 19 2. May accept HMA directly from the haul vehicle or pick up HMA from a windrow. 20 3. Shall mix the HMA after delivery by the hauling equipment and prior to 21 placement into the paving machine. 22 4. Shall mix the HMA sufficiently to obtain a uniform temperature throughout the 23 mixture. 24 25 5-04.3(3)E Rollers 26 Rollers shall be of the steel wheel, vibratory, oscillatory, or pneumatic tire type, in good 27 condition and capable of reversing without backlash. Operation of the roller shall be in 28 accordance with the manufacturer’s recommendations. When ordered by the Engineer 29 for any roller planned for use on the project, the Contractor shall provide a copy of the 30 manufacturer’s recommendation for the use of that roller for compaction of HMA. The 31 number and weight of rollers shall be sufficient to compact the mixture in compliance 32 with the requirements of Section 5-04.3(10). The use of equipment that results in 33 crushing of the aggregate will not be permitted. Rollers producing pickup, washboard, 34 uneven compaction of the surface, displacement of the mixture or other undesirable 35 results shall not be used. 36 37 5-04.3(4) Preparation of Existing Paved Surfaces 38 When the surface of the existing pavement or old base is irregular, the Contractor shall 39 bring it to a uniform grade and cross section as shown on the Plans or approved by the 40 Engineer. 41 42 Preleveling of uneven or broken surfaces over which HMA is to be placed may be 43 accomplished by using an asphalt paver, a motor patrol grader, or by hand raking, as 44 approved by the Engineer. 45 46