A concrete screed assembly broadly includes a plurality of elongated drum sections. The drum sections are interchangeably interconnectable in an end-to-end relationship to cooperatively form a rotatable concrete screed drum that is selectively variable depending on the drum sections interconnected to form the drum. The drum sections each present a concrete-forming outer surface configured to engage concrete as the drum is rotated. The drum sections each include opposite connection ends.

A road paver for producing a pavement layer made of a paving material conveyable in a direction opposite to a paving direction of travel of the road paver to a transverse distributor assembly and distributable by way of the transverse distributor assembly transverse to the paving direction of travel substantially over a working width of a screed. The road paver comprises an exchangeable component configured to contact the paving material at least during operation of the road paver, an attachment unit for the attachment of the exchangeable component to a work assembly or to a chassis of the road paver, and a wear protection for the attachment unit. The wear protection comprises a sacrificial body for mounting onto the attachment unit and/or a protective body with a protective section which is formed to be ramp-shaped or curved at least in sections to guide the paving material over the attachment unit.

The disclosure relates to a road paver comprising a towing vehicle, at least one tow arm, a screed assembly attached to a tow point of the tow vehicle via the at least one tow arm, a leveling cylinder adapted to adjust a position, in particular a height, of the tow point, a screed lifting cylinder adapted to adjust a contact pressure of the screed assembly, a first measuring device adapted to determine a screed height of the screed assembly, a second measuring device adapted to determine an attack angle of the screed assembly, and a feedback control device adapted to control the leveling cylinder and the screed lifting cylinder. The disclosure further relates to a method for feedback controlling a position of a screed assembly and a use of a feedback control device for feedback controlling an attack angle and a screed height of a screed assembly.

The disclosure relates to a screed assembly for laying a road surface, said assembly determining a working width, viewed in the working direction, for laying of the road surface, and a working station for an operator being mounted on the screed assembly. The working station is mounted on the screed assembly in a vibration-decoupled manner, such that the transmission of vibrations from the screed assembly to the working station can be reduced or prevented.

Methods and systems for making and using a wide swath offset concrete screed apparatus for screeding wet concrete slurry. The apparatus includes a cross support bar, an attachment mechanism for attaching the cross support bar to a liftable arm of a motorized vehicle, and lateral support bars for attaching a screed bar to the cross support bar. The screed bar is positioned offset from the motorized vehicle used to operate the screed, allowing the motorized vehicle to drive outside the forms.

To pave a multi-layer road surface, a first pavement layer is paved along a roadway using a first road paver. A second pavement layer is paved over the first pavement layer using the first road paver or using a second road paver. Upon paving the first pavement layer, paving data is recorded that allows determining at least a progression track traveled during paving of the first pavement layer by a screed outer edge of the first road paver. The paving data is used to control the first road paver or the second road paver when the second pavement layer is paved.

Methods and systems are provided for making and using a wide swath offset concrete screed apparatus for screeding wet concrete slurry. The apparatus includes a cross support bar, an attachment mechanism for attaching the cross support bar to a liftable arm of a motorized vehicle, and lateral support bars for attaching a screed bar to the cross support bar. The screed bar is positioned offset from the motorized vehicle used to operate the screed, allowing the motorized vehicle to drive outside the forms.

An edge detection system for a road paver, wherein the edge detection system includes a sensor unit, which is configured to emit laser pulse sequences into a plurality of directions in such a way that the laser pulse sequences are reflected at a plurality of locations of a surface to be scanned. The sensor unit is further configured to detect reflections of the laser pulse sequences and, based on the detected reflections, generate polar coordinate signals representing polar coordinates, wherein the polar coordinates include a distance and an associated angle. The edge detection system is configured to transform the polar coordinate signals into Cartesian coordinate signals representing Cartesian coordinates and to determine a position of an edge in the surface to be scanned relative to a Cartesian coordinate system based on the Cartesian coordinate signals.

A paving machine can include a frame; a screed coupled to the frame, the screed including one or more screed plates; one or more movable extender mechanisms located at a back end of each screed plate and configured to extend and retract up and down beneath the screed plate; and a controller configured to extend the one or more extender mechanisms a pre-determined distance before the screed begins a paving operation and to retract the one or more extender mechanisms after the screed has begun the paving operation.

An information processing apparatus includes a controller circuit configured to: specify an area to be excluded from a road surface to be constructed by a road paving machine according to a change in a shape of an edge of the road surface to be constructed by the road paving machine, based on information on an operating speed of the road paving machine; and correct an area of the road surface to be constructed, based on the area to be excluded.