A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures at an auger mixer to form a backfill mixture. This backfill mixture may then be loaded into a hopper that continuously agitates the mixture so that the mixture does not harden before pouring. The agitating hopper is coupled to a discharge chute of the auger mixer and includes one or more augers disposed at various orientations that the backfill mixture is channeled through. From the agitating hopper, the backfill mixture is channeled to an applicator that moves along the trench and that enables the mixture to be quickly poured into the trench with little clean-up required.

A self-propelled roadway maintenance machine has an operator's station located on a front portion of the machine's chassis and including a forward-facing operator's seat. A driven implement, such as a crack routing cutter drum for routing cracks in a roadway surface, is mounted on the front portion of the chassis in a location that can be monitored by a forward-facing operator while controlling machine steering and propulsion. The implement may be removably mounted on the chassis by a quick-connect coupling. If the implement comprises a crack routing clutter drum, a plurality of peripherally spaced cutter wheel assemblies may be mounted between disks of the cutter drum, each cutter wheel assembly including a pin and first and second bushings that support the pin on the disks and that are removably inserted into respective bores in the disks. Machine steering and propulsion and implement operation may all be effected hydraulically.

The present disclosure provides various aspects for mobile and automated processing utilizing additive manufacturing and the methods for their utilization. In some examples, discrete material formats for use in an Additive Manufacturing Array are disclosed. Methods of using the additive manufacturing robot, discrete materials, and the roadways produced with the additive manufacturing robot are provided. A combined function Addibot, with Additive Manufacturing capabilities, cleaning capabilities, line painting capabilities and seal coating capabilities which may be used in concert with a camera equipped aerial drone for design and characterization function is described.

A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures at an auger mixer to form a backfill mixture. This backfill mixture may then be loaded into a hopper that continuously agitates the mixture so that the mixture does not harden before pouring. The agitating hopper is coupled to a discharge chute of the auger mixer and includes one or more augers disposed at various orientations that the backfill mixture is channeled through. From the agitating hopper, the backfill mixture is channeled to an applicator that moves along the trench and that enables the mixture to be quickly poured into the trench with little clean-up required.

A walk-behind apparatus and method for cutting non-linear trenches in concrete includes a frame supported by fixed direction wheels at a front end on a fixed axis of rotation, and multi-directional wheels at a rear end to rotate on movable axes of rotation, to permit the frame to rotate about a vertical axis passing through the frame. A handle is engageable by a user walking behind the frame for pushing the apparatus forward and/or for steering. A cutting wheel has a diameter of 5-20 inches and a cutting portion having a width of 0.5-1.5 inches. The cutting rotates on an axis parallel to the fixed axis and which extends notionally through the fixed direction wheels. The cutting wheel is disposed within a protective shroud viewable by the user to permit the user to visually align and guide the cutting wheel along a non-linear path on the ground while steering.

A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures at an auger mixer to form a backfill mixture. This backfill mixture may then be loaded into a hopper that continuously agitates the mixture so that the mixture does not harden before pouring. The agitating hopper is coupled to a discharge chute of the auger mixer and includes one or more augers disposed at various orientations that the backfill mixture is channeled through. From the agitating hopper, the backfill mixture is channeled to an applicator that moves along the trench and that enables the mixture to be quickly poured into the trench with little clean-up required.

Arrangements for diverting and removing spoil created when a microtrench is being cut. The disclosed arrangements divert the debris and dust away from the microtrench during the cutting process. In optional embodiments, a spoil vacuum system is used to remove the dust particles during the debris diversion process. In further optional embodiments, a microtrench slot cleaning tool and slot vacuum system may be used. The microtrencher can be mounted on a skid-steer loader or a similar support vehicle.

A vehicle 1 is described. The vehicle 1 is preferably an unmanned and/or autonomous vehicle, for example a robot. The vehicle 1 comprises: a propulsion system 10, arranged to propel the vehicle 1 on a surface S, comprising a set of wheels 11 including a first wheel 11A and/or a set of tracks 12 including a first track 12A; a set of sensors 40, including a first sensor 40A, arranged to sense a first deposition target T1 of a set of deposition targets T in the surface S and to transmit a first signal 41, in response to sensing the first deposition target T1; optionally, a deposition apparatus 20 for depositing a material M on and/or in the first deposition target T; and a controller 30 arranged to receive the first signal 41 transmitted by the first sensor 40A and to control the propulsion system 10 and/or the deposition apparatus 20, based, at least in part, on the received first signal.

A machine for removing and filling roadway joints includes a laterally expandable main frame mounted to a vehicle, a horizontal track beam suspended from the main frame, a joint seal removing assembly suspended from a track beam, and a joint filling assembly attached to an end of the track beam. The joint seal removal assembly includes a pair of guide wheels for maintaining alignment with the roadway joint. The joint seal removal assembly includes a rotary broom, a joint seal router, a rotary abrader, a sandblaster, high-pressure air blaster, a high pressure water blaster and a heat lance. The joint filling assembly includes a guide wheel and a sealant applicator for dispensing sealant into the roadway joint.

Arrangements for diverting and removing spoil created when a microtrench is being cut. The disclosed arrangements divert the debris and dust away from the microtrench during the cutting process. In optional embodiments, a spoil vacuum system is used to remove the dust particles during the debris diversion process. In further optional embodiments, a microtrench slot cleaning tool and slot vacuum system may be used. The microtrencher can be mounted on a skid-steer loader or a similar support vehicle.