A road finisher comprising a screed plate extending at right angles to the working direction of the road finisher, and a tamper bar disposed rearwardly and/or forwardly of the screed plate in the working direction, wherein at least one electrically operated heating element is present, which is configured so as to heat up a heating surface facing a road subsurface, and wherein the heating element comprises a heating layer at least partially obtained through thermal spraying onto a substrate surface, wherein the tamper bar is made from two parts with an upper tamper bar member and a lower tamper bar member assembled together. Further, a tamper bar for a road finisher and a method of manufacturing a tamper bar are provided.

A road finisher includes a screed plate extending at right angles to the working direction of the road finisher, a tamper bar disposed rearwardly and/or forwardly of the screed plate in the working direction, wherein at least one electrically operated heating element is configured to heat up a heating surface facing a road subsurface, the heating element comprising a heating layer at least partially obtained through thermal spraying onto a substrate surface, and a piston rod with connecting means to a tamper bar drive. The tamper bar is connected to the piston rod with an upper surface of the tamper bar contacting a lower surface of the piston rod, wherein the piston rod is single-pieced with regard to its connecting means and its lower surface, and the heating layer is located between the piston rod and the tamper bar, especially applied to the lower surface of the piston rod.

A heating hood is operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement. The heating hood includes a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream. A lower margin of the heating hood is operable to discharge the heated exhaust streams onto the pavement, with the heated exhaust streams discharged from the lower discharge margin having no visible flame.

There is provided a portable heating assembly for in situ asphalt road renewal. The assembly includes a housing with a top wall and a plurality of side walls coupled to and extending downwards from the top wall. The top and side walls include insulating material therewithin. The housing has an open end spaced-apart below the top wall. The assembly includes at least one heating plate coupled to the housing and in communication with the open end of the housing. The heating plate is between the side walls. The heating plate is a carbon crystal mica heating plate in one embodiment.

A pavement repair system utilizing solid phase auto regenerative cohesion and homogenization by liquid asphalt oligopolymerization technologies. The system is suitable for use in repairing asphalt pavement, including pavement exhibiting a high degree of deterioration (as manifested in the presence of potholes, cracks, ruts, or the like) as well as pavement that has been subject to previous repair and may comprise a substantial amount of dirt and other debris (e.g., chipped road paint or other damaged or disturbed surfacing materials). A system utilizing homogenization by liquid asphalt oligopolymerization is suitable for rejuvenating or repairing aged asphalt, thereby improving properties of the paving material.

A paver work machine comprises of a hopper, a screed, a thermal manage system with a heat pump, and a controller. The hopper receives and distributes paving material, and the screed levels the paving material on the ground surface. The thermal management system includes a thermal energy circuit for circulating a medium through an evaporator, a compressor, a condenser, and an expansion device. The compressor receives the medium from the evaporator and is operable to compress and circulate the medium through the thermal energy circuit. The evaporator receives the medium from the expansion device and is operable to transfer heat to the medium. The condenser is operable to desorb heat form the medium and adapted to transfer heat desorbed from the medium to one or more the hopper or the screed. A controller controls heat transfer between the condenser and one or more of the screed and the hopper.

A screed system for a paving machine. The screed system includes a screed plate coupled to a screed frame of the paving machine. The screed plate includes a primary heating member. The screed system further includes a secondary heating member movably coupled to the screed frame and disposed to a rear end of the screed plate.

A method is provided for adjusting a temperature of a screed plate of a paving screed of a road paver, wherein the paving screed comprises a heating element for heating the screed plate. The method may include measuring temperature of the screed plate over a time interval using a temperature sensor, and adjusting a target temperature of the heating element, depending on a time profile of the temperature of the screed plate, using a control unit of the road paver.

Machines, systems, and methods for pre-heating a screed plate (including maintaining the pre-heated screed plate) of a paving machine can comprise a screed assembly including the screed plate; and a thermal cover removably coupleable to or over a bottom working surface of the screed plate. The thermal cover can be movable between a first position where the thermal cover does not cover any portion of the bottom working surface of the screed plate and a second position where the thermal cover covers at least a portion of the bottom working surface of the screed plate.

In some implementations, a controller may receive a command to adjust a setting of the screed assembly. The controller may obtain temperature data from one or more sensor devices of the screed assembly. The controller may determine, based on the temperature data, a corresponding temperature of one or more components of the screed assembly. The controller may selectively cause the setting to be adjusted or preventing the setting from being adjusted based on the corresponding temperature of the one or more components, the setting being adjusted based on determining that the corresponding temperature satisfies a temperature threshold, or the setting being prevented from being adjusted based on determining that the corresponding temperature does not satisfy the temperature threshold.