1076 results about "Screed" patented technology

A paving machine may include a power source, a traction system, a hopper configured to contain paving material, and one or more conveyors configured to transfer the paving material from the hopper. The paving machine may also include a screed configured to lay a mat of the paving material. The paving machine may further include at least one front sensor mounted on a front portion of the paving machine and configured to measure height from a surface to the front sensor and at least one rear sensor mounted on the paving machine and configured to measure height from a surface of the mat to the rear sensor. The paving machine may also include a controller configured to determine a thickness of the mat by determining a difference between one or more front height measurements taken by the at least one front sensor and one or more rear height measurements taken by the at least one rear sensor.

A mobile terminal in which the user can manipulate the pointer easily without keystrokes or any pointing device. When the select button of an input unit is depressed, a tilt sensor provided with an accelerometer detects the tilt of a mobile terminal from a reference angle. Based on the tilt of the mobile terminal, a processor calculates the moving direction and speed of the pointer to move the pointer on a display. If the degree of the tilt increases, the pointer movement is accelerated. On the other hand, if the degree of the tilt decreases, the pointer movement is deaccelerated. When the pointer reaches an activate button to activate a desired application program, the pointer movement stops by returning the tilt of the mobile terminal to the reference angle. Upon release of the button, the application program is executed. That is, the pointer movement on the display screed can be controlled in such a manner that a marble is rolled on a plate according to the degree of the tilt of the plate.

A control device for controlling the application of a material which is adapted to be applied to a subgrade by means of a road finisher, said road finisher comprising a tractor and a floating screed, which is attached by means of at least one drawarm to the tractor in such a way that said screed is arranged behind said tractor in the direction in which the road finisher is moving when in operation, a first end of said at least one drawarm being secured to the tractor by means of a vertically adjustable coupling device, and a second end of said at least one drawarm being rigidly secured to the floating screed, said control device comprising a device for detecting the height of a screed edge in relation to a reference height, said screed edge being the rear lower edge of the screed in the direction of movement. The control device further comprises a device for detecting the inclination of said at least one drawarm in relation to a reference plane. A device for controlling the height of the vertically adjustable coupling device controls the height of said vertically adjustable coupling device on the basis of the detected inclination and the detected height of the rear lower edge of the screed.

A screed ski system includes a plurality of circlip saddles supported by corresponding stakes and a plurality of sections of screed ski tubing is snap-fit into the circlip saddles. After screeding of a first layer of aggregate or plastic material, the screed ski tubing and circlip saddles are removed as a unit. The spacers are optionally placed on the stakes, and the screed ski tubing and circlip saddles are placed as a unit on the spacers to facilitate screeding of a second layer of aggregate or plastic material over the first. Some of the screed ski tubing can be flexible to provide an arcuate screed ski.

A soft landing control system for a screeding device is operable to automatically lower a vibrating member of a screed head assembly into engagement with a concrete surface at a time and place where the vibrating member is not positioned over an overlap area of already screeded concrete. The vibrating member is automatically lowered onto newly placed concrete at or near the junction or cold-joint between the already screeded concrete and the area of newly placed concrete, so as to avoid depressions in the already placed concrete. Optionally, the soft landing control system may include a timing device and may lower the vibrating member after a period of time following an activating event. Optionally, the control system may detect when the vibrating device is positioned at or near the newly placed concrete and may lower the vibrating member in response to such detection.

A foundation sill screed with a vertical flange having a top end and a bottom end and a thickness that is tapered from a minimum at the top end to a maximum at the bottom end. The foundation sill screed includes a first leg extending downwardly and outwardly from the bottom end of the vertical flange, a second leg extending downwardly and inwardly from the stucco ledge, and a lip extending downwardly and inwardly from the inwardly extending member. The foundation sill screed includes a floor line alignment guide extending longitudinally along the vertical flange to provide accurate positioning of the foundation sill screed with respect to the sill plate of a building in order to properly protect the sill plate against moisture penetration and pest infestation.

Screed joints for use in plastering and stucco applications. Various embodiments of screed joints for forming screed walls for different thicknesses of plaster materials applied to adjoining walls or other structures are disclosed. The walls or other structures may be of similar or dissimilar constructions.

The invention provides an intelligent elevation and average thickness control system of a floated screed plate paver, and the system provided by the invention comprises an industrial computer, a measuring type GPS receiver, a distance meter, an inclinometer, a displacement transducer, a velocity transducer, a longitudinal slope instrument and other devices. In a GPS mode, design data is input in advance only, a levelling instrument is not required for measuring the elevation of the original ground, an elevation datum line is not erected, and leveling operation hands are not used at two sides of the paver, so that the elevations of the original ground and a newly paved road surface can be accurately recorded; in a compensating beam mode, measured data are participated in calculation of the average thickness for mileage per millimeter, thus the paved thickness can be recorded accurately; and in a longitudinal slope mode, the actual paved thickness can be recorded accurately on the basis of the traditional control method. In addition, the three operating modes can be converted quickly, thus overcoming the defects at the starting stage of the original compensating beam mode, ensuring continuous paving under the condition of abnormal GPS signals, and realizing flexible conversion under the condition of complicated road condition design.

An end gate assembly for a screed for a paving machine, where the screed is provided with a screed hinge component, includes a frame having a frame hinge portion that is adapted to mate with the screed hinge component to form a hinge having a hinge axis about which the frame may pivot. In a preferred embodiment of the invention, the end gate has a pair of hinges. More specifically, the preferred end gate has a first frame portion having a first hinge portion and a second hinge portion. The first hinge portion is adapted to mate with the screed hinge component to form a first hinge having a first hinge axis about which the first frame portion may pivot. This preferred assembly also includes a second frame portion having a hinge member that is adapted to mate with the second hinge portion of the first frame portion to form a second hinge having a second hinge axis about which the second frame portion may pivot.

A screed heating arrangement is provided for a screed assembly that is towed behind a paving machine. The screed heating arrangement includes at least one electric heater bonded to an upper surface of a screed plate.

An apparatus, system, and method extend the exterior surface of a wall below a debridge of the weep screed. An exemplary weep screed includes an upper vertical flange, a debridge, and a lower screed portion that allows an exterior surface material to be applied below the debridge. The lower screed portion includes a lower vertical flange that extends form a lower debridge member to a tool guide. In addition to application of the exterior surface material above the debridge, the exterior surface is applied over the lower screed portion. The resulting exterior surface extends the full height of the wall while damage due to moisture is minimized since the debridge facilitates the weeping of water from the exterior surface above the debridge. The “high tide” appearance is eliminated while meeting building code requirements and maintaining a dependable, weather resistant, and structurally sound building wall.

The present new, improved rock screed bucket has a solid rectangular back plate together with a framework having a rectangular bottom and a pair of generally triangular shaped sides. The solid rectangular back plate acts as a backstop. The rectangular bottom supports a heavy duty grading screen. A mounting frame is mounted to the rear of the solid rectangular back plate through a plurality of shock absorbing spacers. The conventional arm structures and conventional hydraulic system of a conventional tractor or skid loader connect to the mounting frame. By rapidly moving the conventional arm structure and conventional hydraulic system any material in the rock screed bucket can be shaken and thus screened. In a second embodiment, a hydraulic shaker may be attached to the top of the rock screed bucket to shake the rock screed bucket. The hydraulic shaker is conventional and derives its power from the conventional hydraulic system of the tractor or skid loader.

A flexible control joint for use in plastering and stucco applications. Various embodiments of the flexible control joint may be used to form screed walls for different thicknesses of plaster materials applied to adjoining walls or other structures. The walls or other structures may be of similar or dissimilar constructions. Various embodiments of the control joint may be used to form corner arrangements or T-arrangements to achieve desired design effects.

The present invention relates to geopolymer compositions, methods of producing the compositions, and uses thereof. The geopolymer compositions broadly are comprised of a geopolymer binder and an aggregate and, once cured, can exhibit compressive strengths in excess of that of Portland cement-based concrete formulations. The geopolymer composition of the present invention adheres to most surfaces and can b used in the formation of a mortarless building block, floor screed, bench, building block brick, support column or pre-molded column, beam, paving stone, tiles, stone accouterment for a garden, countertop, bathtub, sink, a geopolymer slab, a structural geopolymer composition, a reinforced geopolymer composition, a steel reinforced geopolymer composition, or as a substitute for structural concrete in foundations, beams, columns, or slab with the addition as necessary of steel reinforcement.

Road paver having a towing machine that is movable on a plane along a work area, and a screed provided to lay a road pavement, and having at least one measuring device configured to generate a point cloud that depicts a three-dimensional condition of the surface of the plane.

In a paving screed E for a road paver F, the paving screed E comprises a base screed G and extension screeds A at the front side of the base screed, the extension screeds A being extendable and retractable and pivotable relative to the base screed G, a base guiding structure 18 pivotable relative to the base screed G, a guiding sub-structure 17 slidably guided in the base guiding structure 16, an extension guiding structure 16 slidably guided in the guiding sub-structure 17, and a sole plate frame structure 14 mounted to the extension guiding structure 16 and carrying an extension screed sole plate 11, substantially vertical guidances 20 and elevation adjustment assemblies 21 between the sole plate frame structure 14 and the extension guiding structure 16, the vertical guidances 20 and the elevation adjustment assemblies 21 facilitating to adjust the elevation of the sole plate frame structure 14 and the extension screed sole plate 11 parallel to itself and relative to the extension guiding structure 16.

The present invention comprises a stucco wall structure for a building. The wall substrate is arranged for receipt of subsequent layers of surface material. The margin or periphery of said wall to be treated has a screed attached thereto. A sprayed-on coating of urethane is applied onto the wall substrate between the screeds to insure continuous bonding and adherency to the substrate. A first layer of polymer-based base coat and mesh covering is applied to the sprayed-on coating of urethane to provide anchoring and adhesion of a subsequent layer of stucco. An outer layer of stucco applied over the first layer of polymer-based base coat as a final coat thereon.

A screed plate includes a pair of handles mounted to a pivot member. The pivot member is connected for rotation with respect to a screed plate about a horizontal axis with respect to a screed plate. The vibrator is provided on the screed plate and a tilt actuator is connected to the pivot member and to the screed plate for causing tilting of the screed plate. A laser receiver receives a horizontal laser beam and determines whether or not the receiver is above, below, or at the same level as the laser beam. If the receiver is either above or below the laser beam it sends a signal to the tilt actuator to cause tilting of the screed plate.