A control system for controlling operation of a vibratory system and a tamper system of a paving machine includes a first input device, a second input device, and a controller. The first input device is operable to provide a first speed signal for operating the vibratory system at a desired first rotational speed. The second input device is operable to provide a second speed signal for operating the tamper system at a desired second rotational speed. The controller receives the first speed signal and the second speed signal from corresponding ones of the first and second input devices and compares the desired first rotational speed and the desired second rotational speed. Based on the comparison, the controller determines if the desired first and second rotational speeds lie within a pre-defined range from each other. Based on the determination, the controller modulates at least one of the first and second speed signals.

A road paver includes a height adjustable auger assembly. A support housing of the auger assembly is attached to the road paver via a quick coupling apparatus that facilitates height adjustment of the auger assembly. A plurality of sliding devices are inserted into a respective oblong hole, each oblong hole includes an expanded insertion portion and a vertically extending portion. Wherein the vertically extending portion facilitates height adjustment of the auger assembly. A method of coupling the auger assembly includes inserting the sliding devices into respective oblong holes and adjusting the height of the auger assembly by moving the sliding devices between the expanded insertion portion and the vertically extending portion of the oblong holes.

An extendable section, for attachment to a fixed screed, may include a rotatable shaft, and a power receiving component attached to the rotatable shaft. The power receiving component may receive power generated during rotation of a drive shaft, and generate torque and speed for rotating the rotatable shaft. Increasing the driving rotational speed of the drive shaft may increase a driven rotational speed of the rotatable shaft, and decreasing the driving rotational speed of the drive shaft may decrease the driven rotational speed of the rotatable shaft.

A tow point assembly for attaching a screed to a traction unit of a paver, the tow point assembly including a tow arm having a forward end and a rearward end adapted to be secured to the screed, a tow point support adapted to be secured to the traction unit, and a tow point lift mechanism. The tow point lift mechanism has a first end adapted to be secured to one of the traction unit and the tow point support, and a second end connected to the forward end of the tow arm. The forward end of the tow arm defines a pull point axis where the traction unit pulls the screed and a pivot axis where the tow arm pivots relative to the traction unit. The pull point axis and the pivot axis are coaxial.

A tow point assembly for attaching a screed to a traction unit of a paver, the tow point assembly including a tow arm having a forward end and a rearward end adapted to be secured to the screed, a tow point support adapted to be secured to the traction unit, and a tow point lift mechanism. The tow point lift mechanism has a first end adapted to be secured to one of the traction unit and the tow point support, and a second end connected to the forward end of the tow arm. The forward end of the tow arm defines a pull point axis where the traction unit pulls the screed and a pivot axis where the tow arm pivots relative to the traction unit. The pull point axis and the pivot axis are coaxial.

A hydraulic paver system for operating an electric paver in different operation modes including a first hydraulic circuit and a second hydraulic circuit, wherein the first hydraulic circuit includes a first hydraulic pump arrangement configured for providing a hydraulic driving power to driving device(s) for driving the electric paver, and the second hydraulic circuit includes a second hydraulic pump arrangement configured for providing hydraulic working power for working device(s) of the electric paver for paving, wherein the second hydraulic pump arrangement is driven in the paving mode for providing the hydraulic working power, and a control unit for operating the electric paver in the different operation modes, wherein in the transporting mode the first hydraulic circuit is activated and the second hydraulic circuit is deactivated, wherein the deactivated second hydraulic circuit provides a hydraulic standby power that is smaller than the hydraulic working power provided in the paving mode.

A method of slip forming a concrete structure can include using a first slip form mold that travels along a path to form a portion of a concrete structure by delivering a first flow of concrete into the first mold through a first hopper. The first hopper can be configured to receive the first flow of concrete. The portion of the concrete structure can be modified using a second slip form mold different from the first mold by advancing the second mold along the concrete structure and, while advancing the second mold, delivering a second flow of concrete into the second mold through a second hopper that is configured to receive the second flow of concrete.

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.

An oscillation assembly for a paving machine includes an arcuate member for contacting a recently formed asphalt mat laid by a screed assembly of the paving machine. The arcuate member is adapted to oscillate about an axis extending generally horizontally and substantially perpendicular to a direction of travel of the paving machine. The oscillation assembly further includes a drive assembly for powering an oscillation of the arcuate member. The drive assembly includes a drive motor and a linkage coupling the drive motor to the arcuate member.

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.