A machine train is composed of a road milling machine that travels in front and a road finisher that travels behind. The road milling machine has a profile data determining device configured so that a sequence of height profile data describing the height of the road surface in the longitudinal direction is determined while the road milling machine advances. For transmission of the height profile data, a data transmission device is provided on the road milling machine and a data receiving device is provided on the road finisher. To change the position of the screed, the road finisher has a levelling device that comprises at least one actuator and a control unit, which is configured so that the control unit generates a control signal for controlling the at least one actuator in accordance with a height profile data set.

Methods, systems, and apparatus are described herein for providing operational efficiency at a construction site through a connected system of on-board mobile computers.

A road paver includes: a head; a body including a front end and a tail end; a feeding device, disposed in the front end to convey polyurethane concrete, and the feeding device including a stirring device; a stone paving device, disposed on the tail end to spread crushed stone over a road, and the stone paving device including a stone feed bin carrying the crushed stone; and a concrete paving device, disposed between the feeding device and the stone paving device and connected to the stirring device, and used to spread the polyurethane concrete across the road.

A concrete finishing system may include a surface sensor, a depiction generator for generating a depiction of a profile of the concrete surface, and a display for displaying the depiction. The system may be used to perform a method of finishing concrete including arranging a surface sensor such that a work area for placement of the concrete is within a field of view of the surface sensor, capturing surface profile data of a surface of the concrete during placement or finishing of the concrete, generating a surface profile depiction based on the surface profile data, displaying the surface profile depiction, and informing personnel regarding a variation in height based on the depiction. The concrete slab formed with this process may include a floor flatness value above 35 and a surface free of ground areas and free of filled areas.

A control system for a compactor is disclosed. The control system can include any one or combination of one or more position sensors, a steering system, a control interface and a controller. The controller can be in communication with at least the control interface and the one or more position sensors. The controller can be configured to receive data recording a position of the compactor when physically operating the compactor along at least a portion of the desired boundary of a compaction area, determine from the data a virtual boundary of the compaction area corresponding to the position of the compactor when physically operating the compactor along the desired boundary of the compaction area, and generate at least a first work plan for operating the compactor to compact in the compaction area up to the virtual boundary.

A self-propelled robot unit including a navigation system and movement items for positioning of the robot unit on an even base and a system for impacting predefined areas of the base during the unit's movement between two points on the base is provided. The robot unit's system for impacting predefined areas of the base includes at least one effect unit provided by an outer side of the wheels in relation to the center axis, but upwards one of the driven wheels. An embodiment also relates to a method for creation of a plan for the robot unit's movements and placement of markings for a ball game field.

The disclosure refers to a container for storing and providing at least one modular road paver assembly designed for detachable mounting on a road paver. The container comprises a storage system by means of which individual components of the road paver assembly can be positioned within the container in a standardized arrangement, such that the components of the road paver assembly can be checked for completeness by an operator by means of a visual inspection along a sequence determined between opposite boundaries of the container in view of their assembly sequence on the road paver.

The disclosure refers to a container for storing and providing at least one modular road paver assembly designed for detachable mounting on a road paver. The container comprises a storage system by means of which individual components of the road paver assembly can be positioned within the container in a standardized arrangement, such that the components of the road paver assembly can be checked for completeness by an operator by means of a visual inspection along a sequence determined between opposite boundaries of the container in view of their assembly sequence on the road paver.

A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.

A support structure, including an excavation and a plurality of irregularly shaped foamed glass bodies at least partially filing the excavation. Each respective irregularly shaped foamed glass body has an aspect ratio of about 1:1.7 and a diameter of about 1 inch. The irregularly shaped foamed glass bodies intersect to define stacking angles of at least about 35 degrees. Under compression, the irregularly shaped foamed glass bodies crush and break up before slip failure occurs such that the roadbed has a crushing failure mode.