An apparatus for heating asphalt is used with a container storing a gaseous fuel under pressure. The apparatus includes one or more heaters, each of which includes an elongate infrared emitter, an elongate burner tube, and a Venturi tube. The infrared emitter includes an elongate emitter surface for emitting infrared radiation at the material when the infrared emitter is heated. The burner tube is coupled to the infrared emitter, and defines a burner tube interior for distributing an air-fuel mixture to a plurality of burner tube apertures for distributing the air-fuel mixture over a burner tube outer surface disposed opposite to and spaced apart from the infrared emitter. The Venturi tube is for mixing the fuel from the container with air to create the air-fuel mixture, and supplying the air-fuel mixture to the burner tube interior.

A hand-held screed rake and method for spreading paving material using the hand-held screed rake. The hand-held screed rake includes a screed head having a paving surface and a heating element coupled to the screed head and configured to heat the paving surface.

A method includes receiving first information indicative of a first selection of a machine disposed at a worksite, wherein the first information is received from an electronic device disposed remote from the worksite. The method also includes receiving second information from the electronic device, wherein the second information is indicative of a second selection of a component of the machine. The method further includes determining, using at least one sensor, that an area surrounding the machine is free from unknown objects, and receiving third information indicative of a request to activate the component. The method also includes causing activation of the component based at least in part on the third information.

A heating element hold-down assembly having a heating element adapted to be removably mounted on the screed and a hold-down mechanism adapted to be removably mounted on the screed. The hold-down mechanism comprises a hold-down mechanism frame adapted to contact the heating element, a resilient device adapted to move between an expanded position and a contracted position, a tension shaft, a portion of which is adapted to contact the resilient device, a pin adapted to removably attach the tension shaft to the hold-down mechanism frame, and an adjustment means adapted to be adjustably connected to the screed frame so as to contact the tension shaft. The hold-down mechanism is adapted to maintain contact between the heating element and the screed plate when the screed moves, flexes, or is adjusted.

A method for operating a road paver that is self-propelled and may be controlled via a machine controller. An internal combustion engine provides engine power for a hydraulic system and for a generator so as to generate a generator power for supplying at least one electrical screed plate heating system with electrical energy. The engine and generator power are changed via an engine controller and also a generator controller. Prior to and/or during the paving procedure, current measurements are performed on the current that is flowing between an electrical screed plate heating system, which is dimensioned in a frequency-independent manner, and the generator, in order to determine and ascertain a prevailing generator power that is drawn off at least by the electrical screed plate heating system.

A paving machine includes an engine, a material conveying system, a screed system including a plurality of screed heaters, and an emulsion sprayer system. The emulsion sprayer system includes an emulsion tank and one or more emulsion heaters. The machine further includes an engine load sensing system and a control system. The control system being configured to receive information from the engine load sensing system indicative of a load on the engine, and limit the operation of the one or more emulsion heaters when the received information indicates the load on the engine is above a value.

A pavement repair system is provided 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 screed assembly for use with a paving machine is disclosed. The screed assembly can optionally comprise: a screed plate; a heating assembly having a heating element positioned on the screed plate; a heating element cover positioned on or adjacent the heating element; a screed frame releasably coupled to the screed plate and having one or more openings therein; and a plurality of compression spring assemblies connected to the screed frame and connected to the heating element cover. Each of the plurality of compression spring assemblies can be are configured to exert a desired force on the heating element cover. The plurality of compression spring assemblies are accessible through the one or more openings of the screed frame and the bolt is moveable relative to the screed frame to adjust a position of the heating element cover relative to the heating element for facilitating removal of the heating element.

The present invention relates to a screed arrangement for a paver machine. The screed arrangement includes a screed body including a deflector member and a base plate, and an oscillating tamper bar arrangement positioned between the deflector member and the base plate. The screed arrangement further includes a connecting element connecting the oscillating tamper bar arrangement and the screed body to each other.

A road finisher comprises a towing vehicle including a material hopper at a front in a paving travel direction for receiving paving material, and a paving screed which is pulled behind the towing vehicle in the paving travel direction for compacting paving material. A generator for providing electrical power is provided on the towing vehicle. A plurality of electric heating devices is provided on the paving screed for heating the paving screed. The road finisher further comprises a power distribution arrangement having a line network configured to supply the heating devices with power provided by the generator. The power distribution arrangement comprises a plurality of power adjusters provided on the paving screed and each power adjusted is associated with one of the heating devices. The road finisher comprises a control device configured to control the power adjusters to individually dynamically adjust the power supplied to the respectively associated heating device.