Abstract: A method for operating a compactor on a compressible surface includes: moving the compactor on the compressible surface; receiving an operating speed of the compactor; determining whether an obstacle is present in a path of the compactor; and changing the operating speed to a creep speed if the obstacle is in the path of the compactor. The creep speed is sufficient to prevent the compactor from forming dips in the compressible surface.

Abstract: Electronic patch and crack sealing devices, assemblies, and methods. In one embodiment, a device for surface repair includes an application arm having an electrically-heated torch heating element and an interconnect end adjacent the electrically-heated torch heating element. The device may include at least one applier. In particular embodiments the applier is an interchangeable applier removably coupled to the interconnect end. The result may be an improved electrically-heated device and method for applying/manipulating a polymer asphalt binder and construction aggregate composition at a proper application temperature.

Abstract: A descending mechanised access ramp (D-MAR) system is provided for enabling independent access between a train floor and a station platform. The system comprises a substantially planar casing box mounted in the train floor and housing a hinged jointed sliding ramp. The ramp includes a plurality of side wheels configured to allow the ramp to slide within the casing box. A remote-controlled deployment mechanism is arranged to automatically move the ramp between a standby position within the casing box and a fully deployed position in which a nose portion of the ramp slidably engages the station platform. At least two mobile protection walls are positioned on the station platform and include tactile push buttons configured to trigger flashing lights arranged on bollards associated with the protection walls and to activate the remote-controlled deployment mechanism of the D-MAR system, thereby facilitating safe and assisted deployment of the ramp for passenger access.

Abstract: A vibratory compaction machine includes a chassis, at least one drum, and a control system. The at least one drum is rotatable about an axis that faces in a Y-axial direction and is mounted to the chassis to allow rotation of the drum over a work surface. The at least one vibration mechanism is configured to generate vibrations that are transmitted as impacts directed in a Z-axial direction by the at least one drum to the work surface. The at least one vibration mechanism is provided with a plurality of different amplitude settings. The control system is configured to measure acceleration forces of the at least one drum in a direction that substantially corresponds to an X-axial direction, wherein the acceleration forces are generated by the vibration mechanism and the X-axial direction extends in a direction that is substantially orthogonal to the Y-axial direction and the Z-axial direction.

Abstract: The disclosure provides a paving machine and related methods. In one example, a paving machine includes a first group of sprayers positioned on an underside of a body of the paving machine, and a second group of sprayers positioned downstream of the first group. The first group of sprayers dispense a first product on an existing road and the second group of sprayers dispense a second product over the first product. The paving machine includes a channel positioned downstream of the second group of sprayers to dispense an asphalt mixture over the second product, and a screed positioned adjacent to the channel in contact with the asphalt mixture.

Abstract: A security system provides a barrier above a ground level, and includes a first support element extending in a first direction and a second support element extending in a second direction. The security system further has an elongated carrier element extending in a third direction, where the third direction is transverse to the first direction and the second direction. The first support element and the second support element are attached to a lower surface of the elongated carrier element to provide support for the elongated carrier element, where both the first support element and the second support element extend away from the elongated carrier element on opposite sides of the elongated carrier element. The security system further includes a removable stanchion extending upwardly from an upper surface of the elongated carrier element from a point below ground level to a point above ground level.

Abstract: An apparatus includes an inner core including a metal tube with a flange attached to its distal end, an elastic bumper assembly configured to enclose the distal end of the inner core therein, and a number of anchor assemblies, each anchor assembly including a washer and an anchor. Each anchor assembly extends through the bumper assembly and the flange such that a portion of the bumper assembly is held captive between the washer of the anchor assembly and the flange.

Abstract: Provided is an asphalt reinforcement. The asphalt reinforcement includes: a reinforcing fiber layer having a plurality of holes formed therein; a film layer being breathable or non-breathable and having at least one resin selected from the group consisting of polypropylene, polyethylene, ethylene vinyl acetate, polyethylene elastomers, polypropylene elastomers, polybutene, and thermoplastic polyurethane, and has a melting point of 90° C. to 130° C.; and a nonwoven fabric layer disposed between the reinforcing fiber layer and the film layer, impregnated with an asphalt emulsion, and having a melting point of 50° C. to 130° C. The asphalt emulsion is prepared by mixing a first emulsion and a second emulsion and has a viscosity of 40 to 200 cP. The first emulsion contains modified asphalt, a curing agent, an anti-stripping agent, and petroleum resin, and the second emulsion contains latex, a fatty acid amine salt, calcium chloride, hydrochloric acid, a thickener, and water.

Abstract: A composite deck structure for a bridge, and a bridge structure and a construction method thereof. The composite deck structure includes a top plate (1), longitudinal ribs (2), and transverse ribs (3), the longitudinal ribs (2) are fixedly connected to the transverse ribs (3), and are connected to the diaphragms (4) by means of the transverse ribs (3), and the transverse ribs (3) are not provided with cutouts for accommodating the longitudinal ribs (2). According to the composite deck structure, no cutout is provided on the diaphragms (4), and stress generated by the cutouts is reduced; hot-rolled section steel is used for longitudinal ribs (2) and transverse ribs (3) instead of welded steel plates, such that welding seams are reduced and fatigue resistance of the composite deck structure is improved.

Abstract: Foundation, apparatus and method for stabilization of a foundation. The foundation comprises a subsoil and a pavement structure formed over it, which pavement structure includes a plurality of successive structural layers. At least one of these structural layers is a binder-stabilized structural layer which includes stone material and a binder. Additionally, the stabilized structural layer is enclosed within a sleeve structure.

Abstract: A high-pressure bearable scale type bridge rubber bearing is disclosed, which comprises spring rubber vibration reduction pad assemblies, a flexible steel plate assembly and a rubber bearing body. The rubber bearing body comprises an outer rubber portion and an inner rubber portion; the outer rubber portion is wrapped around the outside of the spring rubber vibration reduction pad assemblies and the flexible steel plate assembly; the spring rubber vibration reduction pad assemblies are arranged on the upper side and the lower side of the inner rubber portion; and the flexible steel plate assembly is fixedly mounted between the spring rubber vibration reduction pad assemblies. The rubber bearing of the present invention has a relatively large elastic deformation after being loaded and can effectively conduct vibration reduction and earthquake resistance during use.

Abstract: A formwork system for a bridge pier configured to support loads associated with bridge pier construction with reduced, or being free of, anchors in the column.

Abstract: A hand tool for levelling screed, the hand tool comprises a main body and a screed-levelling member, the screed levelling member comprises a first portion and a second portion joined together at a vertex, the first and second portion being non-colinear or non-coplanar, wherein the first portion is secured to the main body, and the second portion is configured to level screed in use.

Abstract: A transition structure for bridging a structural joint between two structure parts of a structure is provided. The transition structure has at least two trusses mounted on the edges of the structure and at least one slat displaceably mounted thereon, wherein a primary sliding surface is arranged between at least one truss and at least one slat. The primary sliding surface has at least two partial sliding surfaces, which are each arranged in mutually angled sliding planes, the sliding planes meeting in a common line of intersection S which forms an axis of movement A along which the slat can move relative to the truss. At least one sliding plane is arranged at an oblique angle to a plane of movement B of the transition structure.

Abstract: Vehicle mounted grinding machines adaptable to ground contours have a vehicle mount configured to attach a housing body, including a grinding drum to a vehicle. The vehicle may include a pair of guides on opposing sides of a blade set of a grinding drum, where each of the pair of guides is horizontally aligned with the grinding drum. The housing body is configured to roll about a travel direction relative to the vehicle mount and the grinding machine includes an alignment motor configured to laterally translate the housing body relative to the vehicle mount and perpendicular to a travel direction.

Abstract: Example dock leveler apparatuses are disclosed. A dock leveler apparatus includes a curtain assembly that includes an upper curtain section and a lower curtain section. The curtain assembly is movable between a folded configuration and a pendant configuration. The curtain assembly having a longer length in the pendant configuration than in the folded configuration. A connector couples to the upper curtain section to a deck pivotally coupled to a base frame of a dock leveler. A releasable coupling between the upper curtain section and the lower curtain section. The releasable coupling is to removably couple the lower curtain section and the upper curtain section.

Abstract: A shield assembly is configured for use with the axle assembly of a compaction machine. The machine includes a ground-engaging device with a hub that defines a cavity and an inboard opening. The axle assembly comprises a spindle and a final drive, with a gap between them. The shield assembly includes a shield body mounted within the hub cavity, positioned above the spindle and final drive, and extending over the gap. This arrangement directs debris away from the gap and associated seals, reducing contamination and wear of axle components during operation in debris-laden environments.

Abstract: A floating tunnel shore connecting system, a floating tunnel and a floating tunnel construction method are disclosed, where the design method of the floating tunnel is to apply axial tension along one end or two ends of a tube body respectively; The floating tunnel shore connecting system comprises a joint section located at the end of the tube body, which can move along the axial direction and is connected with a tension device for applying axial tension; The floating tunnel comprises a tube body and a hollow cavity, wherein the tube body comprises a floating section and a shore connecting system at two ends, and both joint sections are provided with tension devices.

Abstract: An emergency response barrier is shown and described, the barrier having a frame with reinforcing bracing; two axles coupled to the frame with wheels attached thereto; a king pin coupled to the frame; wherein the frame is covered with a substantially planar skin that extends along the right and left sides of the frame, from a top of the frame down to a lower edge and covers a majority of the wheels on each side of the barrier; an impact attenuator coupling on the frame, having a vertical pin received in a bore disposed on an impact attenuator, and configured for rotation about the vertical axis of the pin; and a hydraulic cylinder connected between the frame and the impact attenuator, wherein retraction and extension of the hydraulic cylinder moves the impact attenuator through an arc of rotation about the vertical pin.

Abstract: A road paver includes: a head; a body including a front end and a tail end; a feeding device, disposed in the front end to convey polyurethane concrete, and the feeding device including a stirring device; a stone paving device, disposed on the tail end to spread crushed stone over a road, and the stone paving device including a stone feed bin carrying the crushed stone; and a concrete paving device, disposed between the feeding device and the stone paving device and connected to the stirring device, and used to spread the polyurethane concrete across the road.