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Edgewater Creek Bridge Replacement November 2023 102 A Material Transfer Device/Vehicle (MTD/V) shall only be used with the Engineer’s 1 approval, unless other-wise required by the contract. 2 3 Where an MTD/V is required by the contract, the Engineer may approve paving without 4 an MTD/V, at the request of the Contractor. The Engineer will determine if an equitable 5 adjustment in cost or time is due. 6 7 When used, the MTD/V shall mix the HMA after delivery by the hauling equipment and 8 prior to laydown by the paving machine. Mixing of the HMA shall be sufficient to obtain a 9 uniform temperature throughout the mixture. If a windrow elevator is used, the length of 10 the windrow may be limited in urban areas or through intersections, at the discretion of 11 the Engineer. 12 13 To be approved for use, an MTV: 14 15 1. Shall be self-propelled vehicle, separate from the hauling vehicle or paver. 16 2. Shall not be connected to the hauling vehicle or paver. 17 3. May accept HMA directly from the haul vehicle or pick up HMA from a windrow. 18 4. Shall mix the HMA after delivery by the hauling equipment and prior to 19 placement into the paving machine. 20 5. Shall mix the HMA sufficiently to obtain a uniform temperature throughout the 21 mixture. 22 23 To be approved for use, an MTD: 24 25 1. Shall be positively connected to the paver. 26 2. May accept HMA directly from the haul vehicle or pick up HMA from a windrow. 27 3. Shall mix the HMA after delivery by the hauling equipment and prior to 28 placement into the paving machine. 29 4. Shall mix the HMA sufficiently to obtain a uniform temperature throughout the 30 mixture. 31 32 5-04.3(3)E Rollers 33 Rollers shall be of the steel wheel, vibratory, oscillatory, or pneumatic tire type, in good 34 condition and capable of reversing without backlash. Operation of the roller shall be in 35 accordance with the manufacturer’s recommendations. When ordered by the Engineer 36 for any roller planned for use on the project, the Contractor shall provide a copy of the 37 manufacturer’s recommendation for the use of that roller for compaction of HMA. The 38 number and weight of rollers shall be sufficient to compact the mixture in compliance 39 with the requirements of Section 5-04.3(10). The use of equipment that results in 40 crushing of the aggregate will not be permitted. Rollers producing pickup, washboard, 41 uneven compaction of the surface, displacement of the mixture or other undesirable 42 results shall not be used. 43 44 5-04.3(4) Preparation of Existing Paved Surfaces 45