The disclosure relates to a road finishing machine with a screed for producing a paving layer, wherein the screed includes at least one compacting unit for precompacting paving material supplied to the screed. The compacting unit includes at least one eccentric bushing mounted on an eccentric shaft supporting the same at a desired angle of rotation to thereby continuously variably set a desired tamper stroke of a tamper bar of the compacting unit. For rotating the eccentric bushing on the eccentric shaft, an adjusting mechanism mounted spaced apart from the eccentric shaft and at least partially rotatable along with a rotary motion of the eccentric shaft can be activated. Furthermore, the disclosure relates to a method for a continuously variable tamper stroke adjustment at a compacting unit of a road finishing machine.

A method for reinforcing an assembly-type slope by using high-performance shotcrete and a reinforcing member, the method, after producing, at a batch plant, normal concrete having a compressive strength of 21-30 MPa and transporting the normal concrete to a construction site: forms a normal-strength shotcrete by mixing either fly ash or slag fine powder or low-grade mixed material in which fly ash or slag fine powder is mixed, in an increased fluidity state by mixing 20-40% of bubbles of the total volume; forms a high-performance shotcrete by mixing silica fumes and metakaolin or high-grade mixed material in which either silica fumes or metakaolin are mixed; and forms a color shotcrete by mixing coloring materials of iron oxide or carbon black, so as to sequentially construct an inner layer section, an outer layer section, and a surface layer section on the slope.

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 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 system includes a mold configured for forming a paving material into a slab upon a surface, the mold including a width that is substantially perpendicular to a direction of travel of the mold; a mold positioning system coupled to the mold to control a position of the mold above the surface, the mold positioning system including at least one positioning element coupled to the mold to move at least a portion of the mold; and a transport unit including at least one portion configured to contact the surface, the transport unit including a rigid mount coupled to the mold positioning system to maintain a fixed spatial relationship between the transport unit and the mold positioning system, wherein the width of the mold is substantially greater than or equal to a maximum width of the at least one portion of the transport unit configured to contact the surface.

A feedstock processing apparatus for applying, distributing, and compacting feedstock in defined layer heights, including a chassis with a traction drive and a first and second undercarriage. A frame structure connects the two undercarriages over a span width of the feedstock processing apparatus. A material feeding device is coupled to the frame structure. A material distributing device is coupled to the material feeding device and is displaceable in certain sections over the span width and configured to apply the feedstock in layers on soil in different, predefinable height positions between the undercarriages. A compacting device is displaceably mounted on the frame structure and/or the material distributing device. The compacting device and the material distributing device can be displaced in a manner dependent on one another respectively along a predefinable movement path.

A compaction assembly can move in a direction of motion over particulate material. The compaction assembly can include a reciprocable agitating portion positioned along an axis perpendicular to the direction of motion. The agitating portion can move laterally along the axis and to agitate the material transverse to the direction of motion. The compaction assembly can further include a screed plate mounted behind the agitating portion with respect to the direction of motion, the screed plate configured to smooth the material.

Aspects of the disclosure are directed to systems, and apparatuses, and methods for a screed system for a road paver that includes tamper bar subsystem including a screed plate, the tamper bar subsystem, and a tamper bar drive subsystem. The screed plate has a first paving surface with a first pattern for contacting a paving material. The tamper bar subsystem is positioned forward of the screed plate in a paving direction of the screed system and includes a tamper plate and a tamper bar. The tamper plate has a second paving surface with a second pattern for contacting the paving material. The tamper bar drive subsystem is coupled to the tamper bar and configured to selectively move the tamper bar between a first position and a second position in a direction non-parallel to the paving direction of the screed system.

The disclosure relates to a road paver for producing a paving layer from a paving material. The road paver comprises a screed, a longitudinal conveying device adapted to transport the paving material to the screed against a drive direction of the road paver, a transverse distribution arrangement, which is adapted to distribute the paving material transversely to the drive direction in front of the screed, and a deflector plate arrangement, which is arranged in front of the transverse distribution arrangement in the drive direction. The deflector plate arrangement has a height-adjustable deflector plate. The disclosure further relates to a method for operating a road paver.