A vibrating ripper, according to the present invention, has: a main body portion; a vibrating body which is coupled to the main body portion and a vibrating body support unit and vibrates; and a vibration generating unit which is provided on the vibrating body, wherein the vibrating body support unit has a rotating member rotatably provided on the vibrating body or the main body portion for supporting the vibrating body, has first and second connecting members of which both end portions are rotatably connected to the upper and lower sides of the rotating member, with respect to the rotating center of same, and to the main body portion or the vibrating body, respectively such that the vibrating body can be supported in accordance with the main body portion, has a ripper blade provided on the vibrating body, thereby, when the vibrating body vibrates in accordance with the main body portion, offsetting, by means of the rotating of the rotating member, the change in coupling positions of the first and second connecting members and the vibrating body due to the vibration.

An apparatus and method for clearing paver joints including high pressure water jets along a transverse direction to impact paver joints below the jets. The jets are moved in a longitudinal direction to clear joints in a transverse swath. The high pressure water jets are provided by plural nozzles arranged spaced-apart across the transverse direction and high pressure water is delivered through the nozzles to impact paver joints below the nozzles

A method and apparatus is provided to rehabilitate and beautify cracked concrete surfaces by adding channels that look like the cracks to the surface.

An optical fiber tape includes a matrix and at least one optical fiber connected to the matrix in an undulating manner. The undulations of the optical fiber are generally sinusoidal, semicircular, or elliptic, and are of amplitude and wavelength such that the minimum bend radius of each undulation is not less than a minimum bend radius specified by a manufacturer of the optical fiber. A road having an upper surface has a pathway indented into the upper surface to less than full depth of the road and has the optical fiber tape laid in the pathway so that the optical fiber tape does not protrude above the upper surface of the road.

An optical fiber tape includes a matrix and at least one optical fiber connected to the matrix in an undulating manner. The undulations of the optical fiber are generally sinusoidal, semicircular, or elliptic, and are of amplitude and wavelength such that the minimum bend radius of each undulation is not less than a minimum bend radius specified by a manufacturer of the optical fiber. A road having an upper surface has a pathway indented into the upper surface to less than full depth of the road and has the optical fiber tape laid in the pathway so that the optical fiber tape does not protrude above the upper surface of the road.

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.

Methods, compositions and systems for prolonging the lives of transportation surfaces, including pavement, runways, bridges and parking structures include physically altering the transportation surface and chemically protecting the transportation surfaces. Physical alteration of a transportation surface may include physically altering one or both of a microtexture and a macrotexture of the transportation surface. Chemical protection of a transportation surface may include hardening and/or densifying the transportation surface. The transportation surface may be chemically protected while physically altering the transportation surface or after the transportation surface has been physically altered.

A method for rapid demolishing of a cement concrete pavement slab and a device there for. The device includes a demolishing vehicle, and the demolishing vehicle includes a base disposed at a bottom of the demolishing vehicle. The first shallow cutting allows first saws to make a minimal cut into the cement concrete pavement, increasing the cutting speed. A second deeper cutting is made on the basis of the grooves cut by the first saws, and although second saws have a larger feed, a cutting thickness of the cement concrete pavement is reduced by the first saws. A third cutting follows the same principle as the previous cuttings.

A unique design is provided that may increase the strength and performance and extend the life of a saw blade, particularly when used to cut asphalt. A saw blade may include a main body forming teeth and cutters that are secured to the teeth. The cutters may be configured to extend outwardly beyond sides of the main body to minimize wear of the main body. The cutters could be configured to extend from alternating sides of the main body to create a greater effective cutting width.