The following disclosure relates to portable systems for dispensing crack sealant and associated devices and methods. The systems and methods described herein may overcome operational inconveniences exhibited by existing systems and may facilitate the operation of such systems. In one embodiment, a walk-behind sealant dispensing system comprises a housing, a kettle disposed inside the housing for holding and dispensing sealant, and a poppet valve actuatable between a closed state and an open state to selectively cause sealant to be dispensed from the kettle. The poppet valve includes a valve body and a flange extending outwardly from the valve body. The flange includes a fastener hole formed therethrough. The poppet valve is attached to the housing via a fastener extending through the fastener hole and engaged with the housing.

Thermoplastic compositions useful for sealing longitudinal joints of substrates, for example, roadways and pavement, are provided herein. Formulations including the composition and methods of using the thermoplastic composition to seal longitudinal joints are also disclosed.

Portable asphalt reclaimer having a pivotable lid with an integral heating element, and an asphalt holding chamber containing a grate. Asphalt may be reclaimed by placing asphalt chunks on the grate, heating them from above using the heating element in the lid until asphalt falls through the holes in the grate. The asphalt may be removed through a lower door. The pivotable lid may be detachable to separately heat the ground surface to which asphalt is to be applied.

The robotic maintenance vehicle (RMV) has a propulsion system, a control system, an electrical power source, a maintenance module, a multi-axis robot, an optical system, and a location translator. The maintenance module is configured to hold different kinds of road maintenance materials. The multi-axis robot is configured to convey the road maintenance material from either the maintenance module to the road, the road to the maintenance module, or both. The optical system and the location translator are configured to be controlled by the control system and operate in conjunction to instruct the multi-axis robot where to pick up and/or place the road maintenance material. The multi-axis robot is configured to be selectively coupled to a distal arm tool.

Portable asphalt reclaimer having a pivotable lid with an integral heating element, and an asphalt holding chamber containing a grate. Asphalt may be reclaimed by placing asphalt chunks on the grate, heating them from above using the heating element in the lid until asphalt falls through the holes in the grate. The asphalt may be removed through a lower door. The pivotable lid may be detachable to separately heat the ground surface to which asphalt is to be applied.

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.

The robotic maintenance vehicle (RMV) has a propulsion system, a control system, an electrical power source, a maintenance module, a multi-axis robot, an optical system, and a location translator. The maintenance module is configured to hold different kinds of road maintenance materials. The multi-axis robot is configured to convey the road maintenance material from either the maintenance module to the road, the road to the maintenance module, or both. The optical system and the location translator are configured to be controlled by the control system and operate in conjunction to instruct the multi-axis robot where to pick up and/or place the road maintenance material. The multi-axis robot is configured to be selectively coupled to a distal arm tool.

A method for adhering a tubular body onto a surface that includes smoothing a portion of the surface to create a smoothed segment of the surface and applying a tubular body directly onto the smoothed segment of the surface after the smoothing of the portion of the surface. The surface at the smoothed segment is smoother than the remainder of the surface. The method further includes applying an uncured protectant onto the tubular body while the tubular body is on the smoothed segment of the surface and curing the uncured protectant into a cured protectant while the uncured protectant is on the tubular body on the smoothed segment of the surface. The cured protectant protectively encases and adheres the tubular body to the surface.

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 method for adhering a tubular body onto a surface that includes smoothing a portion of the surface to create a smoothed segment of the surface and applying a tubular body directly onto the smoothed segment of the surface after the smoothing of the portion of the surface. The surface at the smoothed segment is smoother than the remainder of the surface. The method further includes applying an uncured protectant onto the tubular body while the tubular body is on the smoothed segment of the surface and curing the uncured protectant into a cured protectant while the uncured protectant is on the tubular body on the smoothed segment of the surface. The cured protectant protectively encases and adheres the tubular body to the surface.