A machine lays a bituminous carpet for closing microtrenches. The machine includes a truck having a drive system, which defines a footprint area on a surface whereon the truck can move, and a preparing device for preparing bitumen for laying. The preparing device includes a bitumen container having an inlet into which bitumen in introduced, an outlet through which the bitumen prepared for laying exits, a heating system for raising the temperature of the bitumen introduced into the preparing device. A laying device receives the bitumen prepared for laying and lays the bitumen in carpet form. The laying device includes a forming element for shaping and laying bitumen as a carpet over a laying area; a drain channel, between the outlet of the preparing device and the forming element, conducting bitumen towards the forming element. The preparing device includes a mixing device mixing the bitumen while preparing it for laying.

A machine lays a bituminous carpet for closing microtrenches. The machine includes a truck having a drive system, which defines a footprint area on a surface whereon the truck can move, and a preparing device for preparing bitumen for laying. The preparing device includes a bitumen container having an inlet into which bitumen in introduced, an outlet through which the bitumen prepared for laying exits, a heating system for raising the temperature of the bitumen introduced into the preparing device. A laying device receives the bitumen prepared for laying and lays the bitumen in carpet form. The laying device includes a forming element for shaping and laying bitumen as a carpet over a laying area; a drain channel, between the outlet of the preparing device and the forming element, conducting bitumen towards the forming element. The preparing device includes a mixing device mixing the bitumen while preparing it for laying.

A system and method for applying a construction material is provided. The system may include a batching and mixing device configured to mix blast furnace slag material, geopolymer material, alkali-based powder, and sand to generate a non-Portland cement-based material, the non-Portland cement-based material including 4% to 45% geopolymer material by weight; greater than 0% to 40% blast furnace slag material by weight, 10% to 45% alkali by weight, 20% to 90% sand by weight, less than 1% sulfate by weight, and/or no more than 5% calcium oxide by weight; a conduit configured to transport the non-Portland cement-based material from the batching and mixing device; and a nozzle configured to receive the non-Portland cement-based material and combine the transported non-Portland cement-based material with liquid to generate a partially liquefied non-Portland cement-based material, wherein the nozzle is further configured to pneumatically apply the partially liquefied non-Portland cement-based material to a surface.

The invention relates to a paver, in particular a slipform paver, having a machine frame 1 supported by front and rear undercarriages 2 and 3 and a paving device 6 for the paving of material. The invention relates additionally to a method of operating such a paver. The paver is provided with an apron monitoring device 13 configured to generate elevation profile data or elevation profile signals describing the elevation profile of the material deposited in the apron of the paving device 6 in a direction transverse to the working direction X. In addition, the paver has a data or signal processing device 16 receiving the elevation profile data or elevation profile signals. The apron monitoring device 13 provides the data needed to allow the material to be spread more evenly across the working width of the paver during the feeding operation by means of a spreading device for spreading the material to be paved in a direction transverse to the working direction X and/or to allow the spreading device to be controlled for improved spreading of the material after the paver has been fed.

A material placer having an augmented hopper, which can receive and convey concrete or other material at a greater rate than other material placers known in the industry. The augmented hopper has a relatively large volume, a bumper structure, a hinged flop gate, and a sliding gate plate that improves the process of receiving concrete or other discharged material from delivery trucks. The hinged flop gate and/or the sliding plate can optionally be vibrated to aid in moving concrete or other material into the trough of the augmented hopper. The material placer is further configured to have ease of access for cleaning and maintenance.

A system and method for applying a construction material is provided. The method may include mixing one or more of 4%-45% volcanic rock by weight, greater than 0%-40% latent hydraulic material by weight, 10%-45% alkaline component by weight, and 20%-90% aggregate by weight to produce a dry binding agent mixture, using a dry mixer; and combining the dry binding agent mixture with water at a nozzle to produce a sprayable concrete compound.

An adjustable paving machine includes a first frame portion having a plurality of walls, and a variably expandable portion having a plurality of walls and being operably coupled to the first frame portion. The adjustable paving machine also includes at least one brush affixed to at least one of the first frame portion or the variably expandable portion. The first frame portion and the variably expandable portion together form a containment basin configure to confine a paving material deposited into the containment basin. The variably expandable portion is configured to laterally move relative to the first frame portion to change a width of the containment basin. The at least one brush is disposed inside of the containment basin and configured to spread the paving material on a paving surface.

This disclosure relates to an adjustable paving machine. In some examples, the adjustable paving machine includes a variably expandable portion. The variably expandable portion may be expandable laterally such as to accommodate paving operations of variable widths. The adjustable paving machine may be configured to spread a variety of paving materials on a paving surface, including oils, emulsions, asphalt, slurries, or the like. The adjustable paving machine may include a containment basin operative to contain a paving material such as to reduce lateral or longitudinal movement of the paving material. The adjustable paving machine may include an adjustable shoe configured to move the paving machine vertically relative to the paving surface. The adjustable paving machine may include one or more spreading elements configured to spread the paving material on the paving surface. The spreading elements may be supported by a spreading element support enabling easy replacement of the spreading elements.

A compactor for operation on a surface includes: a frame; at least one compacting drum coupled to the frame; a drive system for accelerating and decelerating the compactor at an acceleration rate and a deceleration rate, respectively; and a controller for: controlling the drive system, and based on at least one variable, altering at least one of the acceleration rate and the deceleration rate.

The present invention provides a method for producing a road making material and a road making material, the road making material comprising more than 10% polyvinylchloride (PVC) by weight and the polyvinylchloride having a glass transition temperature of no more than 180° C.