4-55 SECTIO N 410 – MATERIA L TRANSFE R VEHICLE 410.0 1 DESCRIPTION . This work shall consist of furnishing and using an approved material transfer vehicle (MTV) in bituminous concrete paving operations. 410.0 2 CONSTRUCTIO N REQUIREMENTS . An approved MTV shall be used to transfer the bituminous material from the hauling equipment to the paver . The MTV shall operate independently from the paver and shall be a commercially manufactured unit specifically designed for the transfer of mix from the hauling equipment to the paver without depositing the mix on the roadway surface . The MTV or separate hopper shall be designed such that the deposited mix is remixed prior to placement on the roadway . The minimum storage capacity of the MTV, not including any separate hopper, shall be 12 tons. The MTV shall be capable of swing ing or offsetting the material transfer delivery system to side discharge into the paver. If the MTV and associated actions do not effectively eliminate mat segregation as determined by the Engineer, the Engineer may require a hopper insert with remixing c apabilities or other measures . When the MTV traverses a bridge that is not a buried structure, it shall be as near to empty as possible and shall not exceed 5 mph while on any structure . 410.0 3 METHO D OF MEASUREMENT . The quantit y of Material Transfer Vehicle to be measured for payment will be the number of tons of bituminous pavement transferred by the MTV to the paver in the completed and accepted work , as determined by the weigh slips. 410.0 4 BASIS OF PAYMENT . The accepted quan tity of Material Transfer Vehicle will be paid for at the Contract unit price per ton . Payment will be full compensation for the equipment as specified and for furnishing all labor, tools, equipment , and incidentals necessary to complete the work . Payment will be made under: Pay Item Pay Unit
410.10 00 Material Transfer Vehicle ................................ ................................ ......... Ton
4-56 SECTION 413 – HOT IN -PLACE RECYCLING
413.01 DESCRIPTION . This work shall consist of hot in -place recycling (HIR) of the existing pavement
surface, including heating the pavement surface using specialized equipment causing the asphalt to soften, scarifying the softened pavement surface in a continuous process to the depth specified in the Plans, mixing the scarified asphalt pavement with a recycling agent that rejuvenates the asphalt, and placing and compacting the mix back onto the roadway. Excess recycled material not used in the HIR process will become the property and responsibility of the Contractor.
413.02 MATERIALS . Materials shall meet the requirements of the following subsections:
Hot Recycling Agents ................................ ................................ ................................ 702.05 The HIR mixture shall be free of any materials not generally considered to be asphalt pavement.
413.03 Equipment .
a.General Requirements . The recycling equipment shall be capable of milling the existing roadway, sizing the resulting RAP, and mixing th e RAP with the recycling agent and any additives stipulated in the mix design. The equipment used shall be capable of placing the recycled pavement mixture to the requirements provided herein and to the lines and grades shown on the Plans. Any additional equipment used by the Contract or beyond th at specified below shall be approved by the E ngineer based on its suitability to produce results meeting the specification requirements.
b.Heating Unit . The heating unit shall generate sufficient heat to soften the asphalt pavement to the depth required. Care shall be taken not to overheat the existing pavement thereby softening the underlying asphalt pavement not to be scarified. The burner assembly shall be adjustable to heat between 8 feet and 14 feet i n width. The entire heating unit shall be enclosed and vented to contain the heat and prevent damage to adjacent properties and landscape. In cooler temperatures, an additional heating unit may be required.
c.Heater Scarification Train . This equipment sh all be a self -contained machine designed to reprocess only the upper layers of the existing pavement. The heater scarification train shall be self -propelled and capable of operating at speeds of 16 feet to 50 feet per minute while uniformly heating and scarifying the existing pavement to a minimum depth of one inch. Listed below are the various units that are part of the heater scarification train.
Source: Vermont Standard Specifications for Construction, 2024 Edition. Pages 373–373 of 1,380.