Abstract: A method of cold in-place recycling of asphalt to remediate distressed roads. Asphalt particles obtained by milling the existing asphalt are limited by screening to a maximum size of about one inch length. Asphalt particle size may be established by limiting tooth spacing of the road milling equipment milling head to about 5/16 inch or 8 millimeter spacing intervals. A predetermined proportion of portland cement, water, and asphalt emulsion are added to generated asphalt particles. Portland cement may be deposited onto the existing asphalt prior to milling. The resulting combination is mixed to generate a recycled mix, which may then be discharged onto the road being remediated and further processed, such as by screeding, compacting, and sealing.

Abstract: A non-slick surface-seeded exposed aggregate concrete product and method of making the same enhances the coefficient of friction of an exposed surface thereof to reduce undesirable slipping and sliding. Implementations of the present invention are characterized by the use of fine sand and aggregate broadcast over the exposed surface, which surface has been prepared to receive the same. After curing, the exposed surface is then ground and acid-etched to define fissures, cracks, and/or sharp edges of the aggregate. Subsequently finishing steps are performed to produce the non-slick concrete product which may be used for high traffic pedestrian areas where foot gripping and traction are important, such as on stairs, ramps, walkways, courtyards, and the like.

Abstract: The invention relates to a paver for the paving of ground courses for roads or the like, comprising a chassis and a trailed floating screed which is articulated on the latter via tow arms and of which the angle of attack relative to the ground can be adjusted via an actuating cylinder, arranged on each of the two sides of the chassis, for displacing the tow point of the tow arms, a tow-point displacement controller for setting the tow point corresponding to an intended paving height dimension of the screed being provided for each side, characterized in that displacement sensors for measuring the displacement movements of the actuating cylinders are provided and are coupled to a control unit which evaluates the displacement signals of the tow-point displacement controllers, which control unit records the displacement movements as control values and compares them with a nominal control value range for displacement movements that can be stored in the control unit and corrects recorded control values outside the

Abstract: A coupling system for a traffic barricade has at least first and second traffic barrier segments adapted to be coupled in abutting alignment. First and second connectors are movable from a retracted position in upper and lower bolt retraction cavities in the first barrier segment to a second coupled position wherein ends of each of the connectors pass through connecting rod shafts in the second barrier segment and secure abutment of the first and second traffic barrier segments. Hand holes are provided in each segment to enable assemblers to move the connectors from the first to the second position.

Abstract: A reflector apparatus including a mobile trailer and a heat reflector attached thereto such that terminal edges of wings of the reflector are disposed proximate to the surface of the heated asphalt and define a plane that is substantially parallel to a plane formed by the surface of the heated asphalt. A kit includes a heat reflector and a mechanism or device for removably attaching the heat reflector to a mobile trailer.

Abstract: A paver assembly includes a substrate member having a bottom wall adapted to support the paver assembly above a roof surface, a plurality of sidewalls extending upwardly from the bottom wall, and at least one engagement member extending above the bottom wall, and an over-molded paver member having a bottom surface, a plurality of side surfaces, and a top surface adapted to support a person thereon, wherein the bottom surface is molded about the at least one engagement member, thereby securing the paver member to the substrate member.

Abstract: A concrete finishing apparatus for smoothing and leveling partially set-up concrete at a support surface includes a frame portion, a first concrete working member and a second concrete working member disposed at the frame portion. The first concrete working member is rotatable about a first axis of rotation that is generally vertical when the first concrete working member is supported at a generally horizontal support surface. The second concrete working member is rotatable about a second axis of rotation that is generally vertical when the second concrete working member is supported at a generally horizontal support surface. The first and second concrete working members engage the partially set-up concrete surface at the support surface and rotate about the first and second axes of rotation to process the concrete surface.

Abstract: It is provided a connecting portion for a boarding bridge that eliminates the level difference between the doorway portion of the aircraft and the passage, reduces the anxiety of the passengers, and can be raised and lowered smoothly.

Abstract: An improved grate 601 is made from a plurality of elongate grate pieces 602, each grate piece 602 having a body 603 with a first end 604 and a second end 605. Each grate piece 602 has the first end 604 angled with respect to the body 603 and the second end 605 angled with respect to the body 603. When the first end 604 of a grate piece 602a is welded to the first end of an adjacent grate piece 602b, and the second end 605 of the grate piece 602a is welded to the second end of the adjacent grate piece 602b so as to form the grate 601, a gap is formed between the respective bodies of the grate pieces 602 to permit the drainage of liquid between the grate pieces. By varying the angles at which the grate pieces 602 are welded together sections of grate with both horizontal and vertical curvature can be formed.

Abstract: A curb covering device for covering a portion of a curb featuring a generally flat panel; a first folding line, a second folding line, and a third folding line, wherein the first folding line is positioned about halfway between the third side edge of the panel and the fourth side edge of the panel, the second folding line is positioned between the first folding line and the fourth side edge of the panel, and the third folding line is positioned between the third side edge of the panel and the first folding line. The folding lines function to allow the panel to be folded over the portion of the curb.

Abstract: A control is provided for a machine that applies a material to a subgrade and pulls a floating screed over the top surface of the material behind the machine. The floating screed is attached to the machine by at least one tow arm at a tow point on the tow arm. The vertical height of the tow point is controlled by a hydraulic cylinder on the machine in response to a valve control signal applied to a hydraulic valve. The screed determines the thickness of the material on the subgrade as it is manipulated by adjusting the height of the tow point such that the top surface of the material follows a reference surface. A first sensor is mounted on the machine, adjacent the front of the machine, for sensing the relative height of the reference surface and providing a first sensor output related thereto. A second sensor for senses the height of the tow point relative to the machine and provides a second sensor output related thereto.

Abstract: A composition for chemical improvement of soil and road base materials including an aqueous solution of a water repellant and an aqueous emulsion of a soil stabilizer and dust retardant is herein disclosed.

Abstract: A traffic channelizer is provided. In one implementation, the traffic channelizer may include upper and lower portions with a center region in between. The center region may include front and back surfaces joined together by multi-faceted end regions extending and tapered from the bottom of the traffic channelizer to the top of the traffic channelizer. A handle for carrying the traffic channelizer and a bracket for mounting a warning light or other signage may be provided at the top of the traffic channelizer. The front and back surfaces may include a recessed region for mounting a reflective material or other signage.

Abstract: A method for reducing capillary water uptake and preventing soil erosion is herein disclosed.

Abstract: A composition for dust suppression including an acrylic polymer, a polyvinyl acetate polymer, glycerin, and water is herein disclosed.

Abstract: A rig mat is formed by rectangular panels fastened end to end by cooperating connectors. In one arrangement the first connector is C-shaped shaped to form a slot and the second T-shaped shaped with a flange of the T wider than the mouth inserted through the mouth. In a second arrangement two L shaped connectors are interengaged with an additional flat plate which defines a slot with an end of one of the L-shaped connectors. The panels are composite and formed from a honeycomb core panel with a foam material filling the tubular cells and a fibrous reinforcing cover sheets extending over the top and bottom of the panel. The cover sheets are filled with a set resin material which extends into the porous fibrous material of the walls of the core panel so as to form an integral structure of the resin extending between the walls and the sheets.

Abstract: A component mat combines with similar mats to form a vehicle tracking pad assemblage, with juxtaposed ends joined by mechanical interlock. Optional turnout mats are interlocked to sides of the component mat. A top mat surface carries a finish formed of an array of upstanding mud removal elements of effective height. Mud removal element heights may be uniform among spaced apart elements or may vary among juxtaposed elements. The intermat interlock may carry the top finish to establish continuity over the junction. Suitable mud removal elements include cylinders, pyramids, ribs, and simulated rock patterns.

Abstract: A tack emulsion pre-coating system for use in hot mix asphalt plant paving which comprises providing a triangular-shaped tack emulsion cart deployed ahead of a paver, and configured to operate under a conveyor from a transfer vehicle supplying the paver with HMA, where the cart comprises a forward spray bar which sprays tack emulsion on a surface located between the wheels of the paver so as not to leave tracks and with rear spray bars for spraying tack emulsion behind the wheels, but not behind a central area between the wheels of the paver.

Abstract: A device for operating a gearbox, which operating device comprises a operating rod, a shift finger connected to the operating rod, and at least two electric motors acting upon the operating rod, the rotors of the electric motors being arranged on the operating rod so that a first electric motor is adapted to moving the operating rod by linear movement in the axial direction of the operating rod along the axis (A) of the operating rod and thus controls the lateral travel of the shift finger, and a second electric motor is adapted to effecting rotary movement to turn the operating rod about the axis (A) of the operating rod and thus controls the longitudinal travel of shift finger, when the respective electric motors are energized.

Abstract: The invention relates to a vehicle restraining system for limiting roadways comprising a base beam extending along the longitudinal axis, which overlies a U-shaped bottom and, in the plane view of an orthogonal cross-section along the longitudinal axis, reduces from the U-shaped bottom upwardly and a leading profile, which extends along the longitudinal axis, is placed above the base beam and is fixed thereto. According to said invention said base beam and the guiding profile are connected to each other by means of an intermediate connecting area, which is closed at least on one side and extends, in a substantially vertical direction, from the top end of the base beam upwardly towards the guiding profile, wherein the base beam, the connecting area and the guiding profile form a wall element and, in the plane view of an orthogonal cross-section along the longitudinal axis, said guiding profile extends with respect to the connecting area towards the road way, at least locally.