A self-propelled construction machine includes machine frame that is laterally extendible to adjust a width of the machine frame. A frame lock can selectively lock and unlock the machine frame to permit the width adjustment. A controller includes a frame extension mode configured to steer at least one ground engaging unit to provide a lateral force to adjust the width of the machine frame as the machine is driven across the ground surface by the ground engaging units.

Device for realizing surfacing, in general, realizing surfaces that differ in nature, and more especially for realizing concrete pavements. In particular, it concerns a machine for realizing concrete roads, more especially a type of machine where work can be done without lateral formwork, in such way that after the machine has passed, the road is completely finished and that one only has to wait for the concrete to set and possibly seal the expansion joints before commissioning the road.

A paving machine includes a mold coupled to a telescopic frame member, by which the mold side-shifts relative to a main frame. A tight clearance between the paving machine and a surface being paved may be achieved by the ability to side-shift the mold. The paving machine may also include a number of vibrator motors. A flow to the vibrator motors may be controllable by a manifold controller. The manifold controller is located on an end of the telescopic frame member. By locating the manifold controller on the telescopic frame member, an operator of the paving machine may both stand on the telescopic frame member to watch the paving mold and adjust the settings of the vibrator controller.

A system for varying the width of a molded concrete slab on the fly as the slab is being molded. Position and height of the paving machine relative to an external reference system are determined and controlled using at least two 3D stringless reference objects. An additional sensor provides a signal corresponding to a frame width and thus a concrete slab width, and an actuator controls the frame width actively as the paving machine advances.

A slipform paver includes a machine frame, at least three travelling devices connected to the machine frame, and at least one belt conveyor device pivotable relative to the machine frame about an essentially horizontal axis and about an essentially vertical axis. The belt conveyor device includes a first end and a second end, a belt conveyor base and a belt conveyor arranged on said belt conveyor base, wherein the belt conveyor revolves around a first return roller and a second return roller. A first actuator is configured such that the belt conveyor device is pivotable about the essentially horizontal axis. A second actuator is configured such that the belt conveyor device is pivotable about the essentially vertical axis. An adjustment device is configured such that the first and second ends of the belt conveyor device are adjustable in the longitudinal direction of the belt conveyor device.