A construction machine, which is a feeder vehicle or a road finisher, comprises an operating platform, a material hopper, a conveyor belt system and an electronic control system. The conveyor belt system comprises a conveyor belt and one or more weight sensors which are configured to measure weight force of paving material located on the conveyor belt. In addition, the conveyor belt system comprises one or more inclination sensors which are configured to measure an inclination angle and/or a roll angle of the conveyor belt system. The electronic control system is configured to receive and process data from the one or more weight sensors and the one or more inclination sensors to calculate a mass of the paving material.

In a method of and an apparatus for improving the quality of an asphalt pavement, the asphalt is charged in a supply arrangement (2) adapted to be fitted in an inlet space (11) of a road finishing machine (1). The supply arrangement comprises a rotary vessel (3) in the shape of a truncated cone with a top inlet (30) and a smaller bottom outlet (31). The rotary vessel (3) has internal irregularities (32) for homogenizing the asphalt as to particle size and temperature. Preferably a distributing device (9) including at least one dividing member (93) and a rearrangement device (95) is also used, having the at least one dividing member (93) extending transversely over the belt conveyor (12) under the bottom outlet (31) to divide the flow of asphalt into layers, on top of one another, and the rearrangement device (95) to optimize form and feeding.

An aggregate spreading device includes a hopper, a conveyor system disposed below the hopper, and a spreader system extending from at least one side of the aggregate spreading device and configured to receive aggregate from the conveyor system. The spreader system includes a vertical support coupled to a frame of the aggregate spreading device, a first wall extending from a first end attached to the vertical support, and a second wall extending from a second end of the first wall. A lift actuator is configured to adjust the vertical placement of the spreader system and causing the first and second walls to move vertically.

A road paver or a feeder with a machine frame, a travel carriage driven by a drive unit, and a material hopper arranged in the front in the operating direction on the road paver or the feeder, the material hopper comprising a hopper bottom and side walls extending in the operating direction, at least one approach guidance aid protruding beyond the hopper bottom and the side walls in the operating direction being arranged on the road paver or the feeder in the edge region of the material hopper transversely to the operating direction. The approach guidance aid may also be provided for use with a road paver or feeder.

A material feed system for a paving machine includes a first optical sensor and a second optical sensor that are configured to generate data characteristic of paving material associated with corresponding ones of a left feed mechanism and a right feed mechanism of the paving machine. A controller is communicably coupled to the first optical sensor, the second optical sensor, a left conveyor, and a left auger of the left feed mechanism, and a right conveyor and a right auger of the right feed mechanism. The controller is configured to control the left material feed mechanism and the right material feed mechanism independently of each other such that the left conveyor and auger speeds are independently adjusted based on the data received from the first optical sensor and the right conveyor and auger speeds are independently adjusted based on the data received from the second optical sensor.

A road paver or a feeder with a machine frame, a travel carriage powered by a drive unit, and a material hopper with a material retention device arranged in the front in the operating direction, the material retention device comprising a fastening device and a retention element fastened to the material hopper through the fastening device, the material retention device having an overload protection device, which is designed in such a way that in the event of an overload applied thereto the retention element is detached the from material hopper and the fastening device, the latter remaining on the hopper, without damage. A material retention device of such a road paver or feeder and a method for protecting a material retention device of such a road paver or feeder.

A method by means of which the paving result of the road covering can be improved. For the production of a road covering, road-building material is supplied by a pivoting conveyor of a feeder to a supply container of a road paver. In the case of a relative movement between the feeder and the road paver, the pivoting conveyor has to be manually readjusted, which can result in irregularities in the road covering. This is achieved in that the container of the at least one construction vehicle is detected by at least one sensor unit of the road-building machine.

A device for concreting and molding gutters includes runners configured to slide over ground. A mold forms the concavity of a gutter and a hopper, with a closure for pouring of concrete into a trench previously excavated in a form of the gutter. The runners have an extendable, rear extension configured to be raised and lowered by a hydraulic cylinder, with the runners further including sides. The sides forming lateral parts of a concreting hopper and a means of attachment for vibrators for vibrating the concrete. The mold includes a structure for attachment to the sides of the runners and to an arm of a backhoe or tow machine, with the mold structure complemented by plates, attached using hinges to the structure of the mold and using pipe turnbuckles, enabling variation of inclination of the mold.

A construction machine according to the disclosure comprises a material hopper for receiving bulk material. The material hopper comprises a first sub-hopper that is pivotable about a first axis and a second sub-hopper that is pivotable about a second axis, wherein the first and second axes extend parallel to each other. The first and second sub-hoppers each comprise a rear wall, and the rear walls are shifted with respect to each other in a direction parallel to the axes, whereby a collision of the rear walls is prevented when pivoting the first and/or the second sub-hopper.

A road paver comprises a paving screed, a bearing block arrangement and a distributing auger. The bearing block arrangement comprises a bearing block, a cover and a heating device. The distributing auger is rotatably mounted at the bearing block for distributing paving material. The heating device is received in an accommodation space of the bearing block arrangement. The bearing block arrangement is configured to be selectively brought into a working configuration and into a removal configuration, wherein the heating device is removable from the accommodation space in the removal configuration, but not in the working configuration. At least a base part of the cover is connected to the bearing block both in the working configuration and in the removal configuration. In the working configuration, the base part of the cover at least partially covers the heating device towards a front with respect to a paving direction of the road paver.