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 paving machine can include a frame including a hopper; a screed coupled to the frame and including a screed plate; a first temperature sensor configured to measure a first temperature of a paving material in the hopper; a second temperature sensor to measure a second temperature of the screed plate; and a controller to receive the first and second temperatures and configured to determine an operating condition of the screed plate based on the first and second temperatures.

The screed plate apparatus and method has a road paver/finisher, screed plate, and material matting apparatus having a power source and structural/conductor plate. Paving material is loaded into the material matting apparatus and applied homogeneously as a paving mat to a road surface in a road paver/finisher travel direction. The structural/conductor plate is attached to the road paver/finisher and to the screed plate to provide indirect heat to the screed plate. The screed plate bottom side has differing forms of textured surface impacting the paving material, by differing corrugations of differing patterns, into a more homogeneous consistency. The corrugated pattern may be oriented parallel or perpendicular to the paver travel direction, and/or progressively flattening or set in a crisscross rhombic pattern. A vibrating and oscillating mechanism operates horizontally and vertically upon the screed plate providing a homogeneously sorting on the paving material.

The modular screed plate assembly and method has a road paver/finisher, a structural/conductor plate and modular screed plates. The road paver/finisher has a paver under side, a power source and a heating element, for heating the modular screed plates. The modular screed plates have coupling elements, and retainer quick-connect/releases, and align as a modular screed plate array, providing a tensionally yielding gap allowing the modular screed plate array to absorb pressures from paving operations. The structural/conductor plate couples with the coupling elements and has screed plate retaining locks to securely receives the retainer quick-connect/releases, in order to secure itself to the modular screed plates. The structural/conductor plate receives heat directly from the heating element, and provides indirect heat to the modular screed plate array.

A control system for determining a core temperature of a paving material being paved by a paving machine includes at least one temperature sensor. The temperature sensor generates data indicative of a temperature of the paving material at an auger assembly. The control system further includes a controller in communication with the temperature sensor. The controller receives the data indicative of the temperature of the paving material from the temperature sensor. Further, the controller determines the core temperature of the paving material based on the temperature of the paving material at the auger assembly.

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 road paver comprises a generator, a control device and a screed, the screed comprising a basic screed and being suited to be modified, by selectively attaching or detaching broadening parts, from a first to at least a second, different screed configuration. The basic screed and the broadening parts each comprise one compacting unit and one electric heating element to be supplied with power from the generator for heating the compacting unit to prevent the laying material from adhering to the compacting unit and to finish a high-quality road pavement. The control device is configured to individually switch on or off each one of the two resistance wire windings of the heating element of the basic screed depending on the screed configuration determined by the control device to distribute electrical power generated by the generator to the individual resistance wire windings.

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.

The modular screed plate assembly and method has a road paver/finisher, a structural/conductor plate and modular screed plates. The road paver/finisher has a paver under side, a power source and a heating element, for heating the modular screed plates. The modular screed plates have coupling elements, and retainer quick-connect/releases, and align as a modular screed plate array, providing a tensionally yielding gap allowing the modular screed plate array to absorb pressures from paving operations. The structural/conductor plate couples with the coupling elements and has screed plate retaining locks to securely receives the retainer quick-connect/releases, in order to secure itself to the modular screed plates. The structural/conductor plate receives heat directly from the heating element, and provides indirect heat to the modular screed plate array.