A ground surface treatment vehicle and systems and methods using the same. In some embodiments, the vehicle may be adapted to autonomously or semi-autonomously identify and optionally treat target areas such as divots on turf surfaces. The vehicle may identify the target area via onboard or remote sensors and autonomously treat the target area by providing a treating material such as infill, seed, particulate matter, and liquids.

Means for releasably connecting two constructional panels to one another comprising first and second parts, wherein: the first part has a bolt; and the second part has an enclosure with an opening into which the bolt of the first part can be moved, a cam rotatable about a pivot within an enclosure between an open position and a locked position, the cam having a slot formed within it adapted to receive a portion of a corresponding bolt of the first part, the slot having a bolt engagement surface with a portion sloped at an angle to the said second dimension, the slot having a locking surface substantially opposite the bolt engagement surface.

A coating system and related methods for an airfield surface or a roadway is described. The coating system may include a stable cationic emulsion for application to the airfield surface or the roadway. The stable cationic emulsion may include a) an asphalt blend comprising gilsonite, wherein the gilsonite is modified to possess a positive charge, b) one or more polymers, and c) one or more surfactants not including a cationic surfactant. The coating system may also include a fine aggregate material for application to the stable cationic emulsion applied to the airfield surface or the roadway.

A method, structure, and composition for repairing wide and/or deep cracks, joints, and other gaps in pavement surfaces using one or a series of layers of a compressible aggregate of uniform size, with each layer of the compressible aggregate having a binder applied thereto which flows downwardly into and binds all or an upper portion of the compressible aggregate.

The invention relates to a method of manufacturing an artificial turf (600) and the artificial turf obtained by this method, the method comprising: incorporating an artificial turf fiber on a carrier (104); adding a polyurethane reaction mixture on the back side of the carrier (106); and hardening polyurethane reaction mixture to form a polyurethane backing, characterized in that pyrithione zinc is added in the polyurethane reaction mixture to provide antimicrobial property to the polyurethane backing.

The invention relates to a method of manufacturing an artificial turf (600) and the artificial turf obtained by this method, the method comprising: incorporating an artificial turf fiber on a carrier (104); adding a polyurethane reaction mixture on the back side of the carrier (106); and hardening polyurethane reaction mixture to form a polyurethane backing, characterized in that pyrithione zinc is added in the polyurethane reaction mixture to provide antimicrobial property to the polyurethane backing.

A system for processing a pavement reinstatement, the system comprising: a weighing apparatus 502 for measuring a mass of reinstatement material; and a reinstatement apparatus 10 adapted to receive reinstatement dimension information and reinstatement material information and adapted to determine a required reinstatement material mass, whereby to provide a target air voids content of the reinstatement; optionally wherein the reinstatement apparatus is adapted to receive an indication of the mass measured by the weighing apparatus and optionally wherein the indication is a verification of the weighing apparatus having measured the required mass.

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example.

The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example.

A floor patching composition, including: 100 parts of a dry mortar composition including: 9 to 15 parts of quick-setting cement, and 85 to 94 parts of a sole fine aggregate or a combination of two or more fine aggregates, wherein the sole fine aggregate or the combination has an average true density of 2.8 to 4.0 g/cm.sup.3 and a maximum particle size of 1.2 mm or less; 3 to 18 parts of polymer emulsion solid content having a glass transition temperature (Tg) of equal to or higher than −20° C. and equal to or less than 10° C.; and 6 to 18 parts of water.