Method and apparatus for lifting and removing substrate, such as a cut section from an underlying concrete slab. A plate assembly has a planar support plate and a u-shaped support bracket extending therefrom. The support plate is placed onto the section to be removed. The support bracket has adjoining first, second and third web portions to define an interior channel above the support plate. First and second apertures extend through the support plate on opposing sides of the support bracket and are used to secure the support plate to the cut section using attachment mechanisms such as anchor bolts. A lifting mechanism such as a fork lift inserts a fork through the interior channel to lift the plate assembly and cut section. The interior channel may be contoured to facilitate centering of the fork during lifting and movement of the plate assembly and the cut section.

A construction machine apparatus includes a plurality of ground engaging supports, a machine frame supported from the ground engaging supports and a milling drum supported from the machine frame. A milling drum location detection system is configured to determine a drum location in an external reference system. A location indicator system includes a memory configured to store information identifying a location of one or more areas to be avoided in the external reference system, and a controller configured to compare the drum location to the location of the one or more areas to be avoided, and to provide an output corresponding to a proximity of the milling drum to the location of the one or more areas to be avoided.

A bridge paving machine and method for paving a 3D design without vertical profile rails includes converting a desired design into a 3D surface model to account for certain factors known to cause deviations in the paving processes and paving the 3D surface model in the expectation that factors will cause the 3D surface model to deflect into the desired design. An on-board computer system adjusts the 3D surface model in real-time to correct for on-site variables. The on-board computer system receives data from various external sensors, including deflection sensors fixed to girders in the bride structure, and paving machine-based sensors, and uses various predictive models to predict surface deflection based on the sensor data. The 3D surface model is continuously updated based on the predictive models and actual measured deflections.

A system and method for the application of friction-modifying coatings to roadways, walkways, pathways and other areas subject to vehicular, human or animal traffic, the system and method comprising the controlled, simultaneous application of binder and filler to a surface of a substrate, using a mobile device which passes over the substrate as the binder and filler are being applied. The system includes a frame coupled to a vehicle. A spray bar is mounted on the frame and includes an array of spray nozzles coupled to a resin container. An air knife is mounted on the frame and coupled to an air compressor for generating an air curtain. An aggregate dispenser bar including at least one aggregate dispenser is coupled to an aggregate bin and mounted on the frame for dispensing aggregate.

A modular cell that may be used with other cells to form a matrix under a load bearing feature, the cell being a single piece molding that supports a compressive load placed thereon, the molding including a void space defined within: a skirt shaped support member defining a substantially planar surface with an opening therein; and at least one leg integral to and extending from the support member. The cell further includes at least one linking member that releasably links together multiple cells to form a matrix of cells. The cells may be linked together vertically and/or horizontally. The cell and matrix include greater load bearing capacity and rigidity through aligned legs to carry the weight and interlinking members that act to share the load among the various cells. The design is cheaper to produce and allows easy access of the void space for filling and laying utility lines.

A modular cell that may be used with other cells to form a matrix under a load bearing feature, the cell being a single piece molding that supports a compressive load placed thereon, the molding including a void space defined within: a skirt shaped support member defining a substantially planar surface with an opening therein; and at least one leg integral to and extending from the support member. The cell further includes at least one linking member that releasably links together multiple cells to form a matrix of cells. The cells may be linked together vertically and/or horizontally. The cell and matrix include greater load bearing capacity and rigidity through aligned legs to carry the weight and interlinking members that act to share the load among the various cells. The design is cheaper to produce and allows easy access of the void space for filling and laying utility lines.

Operational data from vehicles operating over a haul road at a work site may be used to determine when road conditions exist that require maintenance to be performed on the haul road. As the vehicles travel over the haul road, sensors transmit sensor signals with the operational data for locations along the road. An electronic control module (ECM) of each vehicle determines road quality indicators for the locations and compares the road quality indicators to predetermined road quality indicator limits. When two or more vehicles determine that a road quality indicator at a location is outside the predetermined road quality indicator limits, or if the same vehicle determines that a road quality indicator at the location is outside the predetermined road quality indicator limits, a road maintenance request message may be generated that will result in the necessary maintenance to be performed at the location.

A paving screed for a road paver that comprises a screed plate, a heating element and a fastening device for pressing the heating element onto the screed plate. The fastening device comprises an actuating member and an elastic element. The actuating member is configured to deflect through its operation the elastic element directly or indirectly by a predetermined amount, wherein the elastic element applies a predetermined force directly or indirectly onto the heating element and biases the heating element against the screed plate.

In a device for working ground surfaces or roadways comprising a machine frame and a working drum in a drum housing arranged at said machine frame, where no less than one spraying device extending parallel to the working drum and featuring several outlet nozzles for spraying agents arranged next to one another and directed towards the working drum is arranged at the drum housing, where the outlet nozzles comprise one each drivable closing mechanism with a closing element which, in an open position, fully uncovers the nozzle channel of the outlet nozzle and, in a closed position, closes the nozzle channel, it is provided for the following features to be achieved: that a controller drives the closing mechanisms, with the outlet nozzles and the related closing elements being adapted to one another in such a fashion that the flow cross-section in the outlet nozzle is variable in accordance with the position of the closing element on a specified path between the open position and closed position.

In a device for working ground surfaces or roadways comprising a machine frame and a working drum in a drum housing arranged at said machine frame, where no less than one spraying device extending parallel to the working drum and featuring several outlet nozzles for spraying agents arranged next to one another and directed towards the working drum is arranged at the drum housing, where the outlet nozzles comprise one each drivable closing mechanism with a closing element which, in an open position, fully uncovers the nozzle channel of the outlet nozzle and, in a closed position, closes the nozzle channel, it is provided for the following features to be achieved: that a controller drives the closing mechanisms, with the outlet nozzles and the related closing elements being adapted to one another in such a fashion that the flow cross-section in the outlet nozzle is variable in accordance with the position of the closing element on a specified path between the open position and closed position.