Abstract: The repair of pavement is performed by placing rigid waterproof asphalt fiber panels over the existing pavement before placing the asphalt concrete overlay on the pavement. The panels are cemented in place with liquid asphalt to the existing worn pavement and to the new asphalt concrete overlay; also the asphalt panels are similarly used in the construction of new pavement wherein the panels are placed between the two layers of the new asphalt concrete or between the asphalt concrete and the rock leveling course.

Abstract: An improved device for simultaneously unrolling geotextile fabric and dispensing an aggregate layer for road construction comprises a hanger bar coupled to a vehicle frame. The hanger bar supports a roller bar adapted to carry a fabric roll. A dragger couples the hanger bar and arranges to present a dead-weight member on top of the fabric. An improved method using the improved device drags the chain on top of the fabric as it unrolls, thus holding the fabric in place. At the same time, a conveyered aggregate delivery system dispenses gravel on top of the fabric.

Abstract: A method of surface seeded fine aggregate to produce simulated quarried stone. The method comprises preparing a subgrade, pouring a concrete mixture over the subgrate, and broadcasting one of fine sand and aggregate over 5% to 60% of an exposed surface of the concrete mixture. Alternatively, both the fine sand and the aggregate can be broadcast over 5% to 60% of the exposed surface of the concrete mixture to obtain a desired aesthetic effect as provided by the quarried stone.

Abstract: An assembly can be provided to and/or on a piece of line striping equipment, wherein the assembly can move at least a portion of the line striping equipment relative to the ground. In various embodiments, the assembly can include a support member, a powered actuator configured to be used in conjunction with the support member, and a force transmitting element. The piece of line striping equipment can include a spray nozzle supported on a carriage, wherein the carriage can be moveable between an operating position where the spray nozzle is carried proximal to the ground and a transport position where the spray nozzle is elevated from the operating position. In at least one embodiment, the force transmitting element can be operably interconnected to the powered actuator, the support member, and the carriage for powered movement of the carriage between the operating position and the transport position.

Abstract: Road surface maintenance material including a core of cold-applied rubberized asphalt and an outer shell of aggregate material surrounding the core. The core and outer shell are in the shape of either a ball form, a string form, or a ribbon form.

Abstract: The present invention relates to a method of repairing a crack in a paved surface. This method involves applying a watertight tape over a crack in a paved surface to cover the crack and form a first layer. The tape is applied with an adhesive. The first layer is contacted with a first liquid acrylic adhesive. The first layer is covered with a polyester fabric to form a second layer that adheres to the first layer. The polyester fabric is impregnated with a second liquid acrylic adhesive. A fiberglass sheet is adhered to at least a portion of the second layer and to the paved surface beyond edges of the second layer to form a transition layer over the edges. Also disclosed is a system for repairing a crack in a paved surface.

Abstract: A sorptive-filtration system for removing at least one of negatively or positively charged ions, complexes or particulates from an aqueous stream. The system includes a) flow formed substantially from at least one of rainfall-runoff or snowmelt-runoff; b) a filter containment communicating with the runoff stream such that at least part of the stream passes through the filter containment; and c) a granular filter media disposed within the filter containment, the filter media having an amphoteric material applied thereto, wherein the amphoteric material comprises a metal selected from at least one of Fe, Al, Mn, or Si.

Abstract: A method for recycling a paved surface includes the steps of providing a motorized vehicle adapted to traverse a paved surface; providing the motorized vehicle with a plurality of degradation elements, a plurality of foaming elements and a plurality of compacting elements; each plurality being attached to a carriage slidably supported by a bearing surface of an underside of the motorized vehicle; degrading the paved surface with the plurality of degradation elements as the vehicle traverses the paved surface; foaming rejuvenation material by the plurality of foaming elements into the degraded surface as the surface is being degraded; and compacting the degraded surface and the rejuvenation material into a new surface with the plurality of compaction elements as the foaming elements continue to foam rejuvenation material into the degraded surface.

Abstract: In one aspect of the invention, a method for reconditioning a paved surface includes the steps of providing a vehicle adapted to traverse the paved surface; providing a layer of loose aggregate on an underlayer by degrading the paved surface with a degradation element attached to the vehicle; adding a foaming agent to the layer of loose aggregate on the underlayer; and coating a total aggregate surface area by mixing hot asphalt into the loose aggregate and allowing the foaming agent to expand the asphalt.

Abstract: Pre-cast curbside access ramp and methods of making and installing the same. In a preferred embodiment, the pre-cast ramp is a quasi-trapezoidal member shaped to include an integrally formed curb portion, a trapezoidal central portion disposed behind the curb portion and a pair of generally triangular side portions disposed behind the curb portion and seamlessly transitioning from opposite sides of the central portion. The ramp is made using a forming apparatus comprising an inner form positioned within an outer form. The inner form, which is more shallow than the outer form, is filled with gravel. A steel grid is then positioned within the outer form and over the inner form. The outer form is then filled with concrete, which is then shaped, screeded, edged, grooved, troweled and allowed to harden within the outer form. When removed from the outer form, the bottom of the cast is provided with a weight-reducing recess.

Abstract: A concrete finishing apparatus and method for smoothing and flattening partially set-up concrete to a close-tolerance surface includes a movable unit that is movable and supported at a partially set-up concrete surface and at least one rotatable ring finishing member mounted to the movable unit. The rotatable ring finishing member is positioned at the concrete surface and rotatable to engage and finish the surface of the partially set-up concrete to a higher quality, closer-tolerance flat and level concrete floor surface. The apparatus may include a pair of rotatable ring finishing members that may be rotatable in opposite directions to enhance the floating and finishing processes and to transport any cement paste, sand, small aggregate, or concrete mix residue forward with the rotatable ring finishing members working surfaces to cut high areas and fill in any low areas as the concrete finishing apparatus moves over the partially set-up concrete.

Abstract: A road surface overlay system including a road surface, an adhesive material that is applied to a portion or all of the road surface, a woven member including fiber bundles, wherein each of the fiber bundles are substantially embedded in the adhesive material and a layer of aggregate applied onto the woven member and the adhesive material. A method of forming a road surface overlay system is also provided.

Abstract: A zero velocity bead dispenser is provided for a paint striping vehicle. The dispenser includes an electric motor which rotates a pair of rollers. A bead gun directs reflective particles into the nip point between the rollers, which discharge the particles or beads with a rearward velocity substantially matching the forward velocity of the vehicle. Therefore, the beads are discharged into the wet paint on the road with a net zero velocity so as to minimize or eliminate rolling of the beads in the paint, thereby maximizing the reflective properties of the beads. A speed sensor continuously monitors the vehicle speed and automatically adjusts the motor speed, and thus the roller speed, so as to maintain the relative zero velocity of the discharged beads.

Abstract: A concrete structure for replenishing an aquifer and a method for constructing the same is provided. The structure is comprised of a pavement layer with surface drains that extend through the pavement layer and into an aggregate leach field. The leach field includes leach lines spanning the leach field. An aggregate drain extends from the leach field into a sand lens. Precipitation which falls upon the structure thus flows through the surface drain, absorbed into the aggregate leach field, and transported to the aggregate drains by way of aggregate leach lines. The water is then absorbed into the sand lens, ultimately replenishing the aquifer. Existing conventional pavement structures are retrofitted by the removal of a section of the pavement, and filling the same with porous concrete.

Abstract: A method and apparatus for finishing cured concrete floors using a riding trowel to which large diameter pans are rotationally secured, the pans having abraders releasably secured to their undersides. The individual abraders are preferably individually removably secured to the pans by hook-and-loop fasteners, wherein the fasteners are selectively disposed on the flat bottom surfaces of the pans or within shallow depressions in the bottom surfaces of the pans. The riding trowel further comprises a vacuum system in fluid communication with a contained space formed by a shroud having a rigid upper portion and a flexible lower portion where it contacts the finished cured concrete floor surface.

Abstract: Disclosed herein is a system and method for computer assisted driving of vehicles. The system disclosed herein provides an array of sensors positioned in the vehicles at strategic points for capturing vibrations and sound induced, when the vehicles move over pavement surfaces marked with predefined patterns of peaks and troughs. The sensors further measure frequencies of these vibrations. An onboard computer on the vehicle matches the captured frequencies and sound against pre-specified frequencies to obtain unique frequency signatures for the segment of the pavement traversed by the vehicle. Navigational data and geographical data associated with the unique frequency signature are used to provide assistance in driving of vehicles.

Abstract: A sports floor, comprises a substrate disposed on an underlying honeycomb structure placed on a support base. The honeycomb structure comprises a series of substantially identical cells arranged in rows. The cells include lateral cell walls adjoining each other according to an annular configuration, forming cell openings upon extension of the honeycomb structure. A mesh width of the cell openings ranges between 20 and 100 mm, a height of the cell walls ranges between 5 and 250 mm, and a ratio of the mesh width to the height of the cell walls ranges between 1:4 and 1:0.1.

Abstract: A flowable material for pavement repair and maintenance comprises rounded sand coated with a polymer be non-absorbent of water in the presence of a polymer mix which allows time for easy placement of the mix into damaged pavement. The polymer surfactant coating creates a strong affinity between the sand and the polymer mix. The materials are chosen preferably to cause an isoviscous reaction to occur. This type of reaction is characterized by a setting phase which stabilizes the repair before a rapid change in viscosity occurs and may be further enabled by an excess of polymer to increase flowability. An excess of polymer insures that sufficient binder remains at the upper portions of the repair to provide flexible and waterproof structure while excess fluid components settle to the bottom of the repair before setting occurs to seal the surrounding pavement. The slow buildup of viscosity allows the sand to settle so that the mix becomes self-compacting.

Abstract: A method and apparatus for screeding post tensioned concrete slabs includes providing a screeding device having a wheeled support having a frame portion and spaced apart wheels rotatably mounted to the frame portion. The screeding device has a screed head mounted to the wheeled support. The screed head includes a vibrating member and a grade setting device adjustably mounted to the vibrating member. The vibrating member is at least partially supportable on the uncured concrete surface, and the grade setting device is adjustable relative to the vibrating member to strike off excess uncured concrete in front of the vibrating member to establish the desired grade or level of the uncured concrete. The screed head may be pivotable relative to the wheeled support about a longitudinal pivot axis extending along the screeding device and in the direction of travel of the screeding device.

Abstract: A composite a deck system having a deck component and a concrete component. The deck component of the present invention includes deck sections, each having a longitudinally-extending rib with spaced apart sidewalls connected to a top wall. At the opposing ends of the sidewalls can be included side edges or webs having upturned flanges with an opening or openings along the flanges that are dimensioned to facilitate composite action between the deck sections and the concrete. The system includes a first deck section, as described, adjacent to a second deck section, wherein the side edges of the first and second deck sections are in juxtaposed relation. These deck sections can be combined with concrete to form a composite deck.

Abstract: A pavement recycling machine is disclosed in one aspect of the invention as including a motorized vehicle to travel along a paved surface and having a direction of travel. A bank of substantially vertically oriented mill heads is connected to the motorized vehicle to break up the paved surface to create loose aggregate. These mill heads have axes of rotation that are substantially perpendicular to the paved surface. A controller is provided to control various operational parameters of the pavement recycling machine. These operational parameters may include, for example, the rotational speed and vertical height of the mill heads. A remote control device communicates with the controller to enable remote adjustment or monitoring of the operational parameters.

Abstract: A method of operating a paving system includes establishing a plan for paving a work area which is based on a positional temperature model. The method further includes receiving temperature data for paving material and comparing the temperature data with data predicted by the positional temperature model. Operation of the paving system is adjusted where actual data differs from model predicted data. A paving system and control system are provided having an electronic control unit configured to compare electronic temperature data with a positional temperature model for paving material. The electronic control unit can control machines of the paving system based on comparing actual data with model predicted data, and can further update either or both of a plan for paving a work area and the positional temperature model itself based on differences between actual data and model predicted data.

Abstract: A method of optimizing a concrete pavement design including estimating conditions of the pavement, determining properties of the pavement and developing a concrete pavement system. The method may further include selecting a thickness for the system, predicting performance of the system, determining costs of the system, and optimizing the pavement design based on one or more considerations. The method may include iterating one or more considerations. An optimized pavement system having predetermined design parameters.

Abstract: Method of recycling a crushed asphalt concrete comprising a friable mixture of asphalt and aggregate particles produced by breaking down a recycled asphalt/aggregate concrete by milling or crushing or the like. The aggregate particles include a substantial portion of the surfaces thereof which are substantially free of adhered asphalt material. The crushed asphalt concrete is mixed with a minor amount of hydraulic cement and water to produce a plastic mixture of the crushed asphalt concrete and hydraulic cement. The plastic mixture is transported to a utilization site such as a building site, road or parking lot and spread on a substrate surface to provide a layer of asphalt concrete pavement. The layer of asphalt concrete pavement has a 7-day compressive strength, typically no more than 1,000 psi, e.g., 150-800 psi. The cement is present in an amount within the range of 1-14 wt. %, more specifically, within the range of 2-10 wt. % of the crushed asphalt concrete and any added aggregate.

Abstract: A system and method for forming concrete tiles for use in concrete walkways and concrete patios and courtyards. The system includes a unitary frame with two or more slanted sidewalls with a plurality of pickup points placed within an interior opening of the unitary frame. Concrete poured into the interior opening of the frame forms a beveled or slanted concrete sidewalk tile. The pickup points are buried in the beveled concrete sidewalk tiles. When an opening in the pickup points is uncovered, a means to pick and place the beveled concrete sidewalk tiles is provided. Slanted or beveled sidewalls prevent binding to or interference with adjacent slanted or beveled sidewalk tiles to facilitate lifting.

Abstract: The repair of pavement is performed by placing rigid waterproof asphalt fiber panels over the existing pavement before placing the asphalt concrete overlay on the pavement. The panels are cemented in place with liquid asphalt to the existing worn pavement and to the new asphalt concrete overlay; also the asphalt panels are similarly used in the construction of new pavement wherein the panels are placed between the two layers of the new asphalt concrete or between the asphalt concrete and the rock leveling course.

Abstract: An apparatus and method for slowing a vehicle. The method including: disposing a predetermined thickness of collapsible material over a base; disposing a plurality of panels over a top surface of the collapsible material over which the vehicle travels; and selectively either supporting one or more of the plurality of panels or allowing the collapsible material to be compressed under the weight of the vehicle.

Abstract: A method and composition of matter used to reduce icing of roads, bridges, and overpasses where the wearing course of the paved structure contains expanded plastic polymer. The expanded plastic polymer functions as insulation and reduces the likelihood that the wearing course of the structure will freeze over, thereby lessening the danger drivers face during colder months.

Abstract: A side guard for a roadway marker comprising an elongate rail member having a top and a bottom. A rooting pin extending from the bottom of the rail member. The rooting pin having a laterally open recess.

Abstract: A composition and methods for soy-based material binder is provided. One example method for increasing road stabilization with a soy-based material binder may include determining road base attributes of the road base for application. The method may further include creating a soy-based material binder comprising at least one of a soy protein isolate with a concentration in the range of 1 to 20% of soy protein isolate based on road base attributes. The method may further include determining an amount of soy-based material binder for a volume of application based on the concentration of soy protein isolate in the soy-based material binder and the road base attributes. Further still, the method may include combining the soy-based material binder and the road base wherein the resultant mixture includes soy-based material binder in a range of 0.0001-5 gallons per pound of road base.

Abstract: This invention relates to a novel seal coat process and equipment for applying the seal coat to improve the reliability of seal coat aggregate retention to the surface of the pavement by increasing the surface area of aggregate covered with binder and interlocking the aggregate with finer gradation material such as choke stone. It also relates to the use of lower amounts of asphalt binder, lower amounts of aggregate application, lower quality of aggregates, use of softer binders, and faster release to traffic times.

Abstract: A system and method for repairing potholes in a road surface by securing a securing device within a pothole, affixing a reinforcing material to the securing device in the pothole, and adding a polyurethane and/or polyisocyanurate foam material to encapsulate the securing device and reinforcing material.

Abstract: A method for bonding together an existing substrate layer and a pavement layer, such that a strong adhesive bond is formed by using a tack coat, provided by an asphalt emulsion, in between the layers as the bond coat. The tack coat layer is a low-tracking coating which cures quickly such that the pavement layer may be applied to the substrate, hours to days after the emulsion is applied to the substrate. The asphalt emulsion comprises at least a first phase of from about 30% to about 70% of an asphalt composition, about 30% to about 70% water, and about 0.1% to about 3.0% emulsifying agent, stabilizer and/or additives, or 0.1% to about 30% if polymeric or other additives are also included.

Abstract: Disclosed is a thermoplastic material and method for repairing damaged asphaltic surfaces by filling “potholes” or damaged regions with thermoplastic fill that is placed in the damaged region of an asphaltic surface, heated to melt the fill in the damaged region and when sufficiently filled a thermoplastic color matched upper patch sheet is laid thereon and heated completing the asphaltic surface.

Abstract: In one aspect of the invention a system for removing a layer of a paved surface comprising a vehicle is adapted to traverse a paved surface in a selected direction. The vehicle has a milling drum with an axle substantially parallel and connected to the vehicle within a milling chamber. The drum is adapted to rotate around the axle between the paved surface and the vehicle. A conveyor belt is attached to a forward end of the vehicle and comprises a portion proximate an opening of the milling chamber. The belt is adapted to carry loose aggregate from the milling drum away from the paved surface. At least one nozzle is disposed on an underside of the vehicle and is in communication with a reservoir through a pathway. The at least one nozzle is adapted to direct the loose aggregate towards the portion of the conveyor belt.

Abstract: A system and corresponding method is provided for conveying driving-related information to vehicle drivers on a track or road course. The system includes evaluating a track or road course and determining recommended driving actions for various segments of the track or road course which may be suitable for drivers of different skill levels, including a relatively inexperienced driver. The recommendations can include speed-related information such a target speed, maximum speed, or a speed range. Optionally, the recommendations relate to other specific driving tasks such as starting or stopping a braking procedure, the appropriate line or path to follow around a curve at a given indicated speed, or starting or stopping an acceleration procedure. The recommendations are conveyed to the driver by way of indicia that is preferably provided on a portion of the driving surface of the track or road course.

Abstract: According to a method for constructing a cover layer S on a planum M by using a paving screed B the elevation of the paving screed B above the planum M is measured using a reference RZ on the planum M by at least one elevation sensors H and/or the lateral inclination of the paving screed B with respect to the planum M is measured by at least one lateral inclination sensor N. Upon occurrence of a deviation from the target elevation pulling points P of pulling bars 6 of the paving screed B are displaced vertically at a road paver F by levelling cylinders Z. Each levelling cylinder Z is exclusively adjusted over an absolute stroke starting from a selected zero point NP. The absolute stroke is calculated from a measuring result of a reference measurement and by consideration of a construction ratio factor.

Abstract: An anti-ram removable bollard (10) assembly and an installation of the same to arrest impacts are provided. The removable bollard assembly comprises a base assembly (20) and at least a reinforcement member (32a,32b) to be fixedly installed on site, and a removable bollard member to be detachably secured to the base assembly as and when required. A coupling mechanism (42,44,48) may be provided in the base assembly to engage the removable bollard member. Also, the base assembly may include an I-beam cross-section arrangement (22,24,26) to provide increased strength to the base assembly. Several base assemblies may be connected by rebars (104) to form a cohesive installation which restrains movement when any bollard member in the installation is struck. With the cohesive arrangement, a high impact rating may be achieved even with shallow base assemblies.

Abstract: A method of paving includes sensing values indicative of a material feed demand of a surface to be paved, and depositing material onto the surface. An electronic controller is configured to generate a control signal corresponding with a feed forward term associated with an expected change in the material feed demand. The method also includes controlling depositing material onto the surface responsive to the control signal. A machine such as a paving machine includes a control system in control communication with a material feed system and having an electronic controller configured to determine an expected material feed demand and responsively output material feed rate control signals to the feed apparatus to control depositing material onto the surface.

Abstract: A milling machine for milling a paved surface has milling tools connected to an underside of a body of the machine. At least one ferrous metal detector is attached to a front end of the machine. Electronic equipment is disposed within the machine and is in communication with the metal detector, the equipment being adapted to interpret feedback from the detector.

Abstract: A system for recycling pavement constituents in situ, includes a vehicle for traversing the pavement constituents comprising a container for storing and preserving heated pavement rejuvenation materials and at least one heating element adapted to heat the pavement rejuvenation materials above their working temperature. A dispensing element is in communication with the container for dispensing the pavement rejuvenation materials to the pavement constituents. The vehicle also supports at least one mixing element which is adapted to mix in situ the pavement constituents and the heated pavement rejuvenation materials together in such a manner that the pavement constituents are raised to a working temperature. The system also comprises a compaction element for compacting the pavement constituents.

Abstract: A tube body having open upper and lower ends and a cylindrical bore there between has an opening along the length thereof. A driver is secured to the tube body adjacent to the upper end. A push rod has a free end. The free end is adapted to move downwardly to an advanced orientation adjacent to the lower end and upwardly to a retracted orientation above the opening. A control component with an operator controlled handle is adapted to move the ram. A funnel is secured to the tube body. The funnel is adapted to feed particulate material into the bore when in the retracted orientation and from the bore when in the advanced orientation.

Abstract: A gutter curb for paved roadways is constructed of an assembled series of elongated sections of gutter curbs connected together end to end, which are assembled along at least one side of a road bed. The gutter curb sections are molded from rubber from recycled tires and are held to the adjacent roadway pavement by tie rods passing through opposite sides gutter curb sections and projecting into the pavement itself to be securely held thereto.

Abstract: A method of reconstructing a bituminous-surfaced pavement is provided. This method includes evaluating the pavement to determine if it is an appropriate candidate for full-depth reclamation; mixing an emulsion with reclaimed asphalt pavement particles from the pavement to form an asphalt emulsion mix; and testing the asphalt emulsion mix for performance using a cohesion test, a moisture susceptibility test, and a modulus test. In many instances, dirt and/or aggregate from the base layer of the pavement are also included in the asphalt emulsion mix. The invention also includes designing a full-depth reclamation (FDR) layer based on this test data. Once the layer is designed, the bituminous surface of the pavement is pulverized, an emulsion is mixed with the pulverized reclaimed asphalt pavement particles from the bituminous surface and possibly dirt and/or aggregate from beneath the bituminous surface of the pavement, and this mixture is applied to the pavement.

Abstract: A roadway support (1) is introduced in parallel to the face advancement of a gallery(1) by means of a selective cut heading machine (2) by providing lagging mats (18, 19) in the form of rolled mats (20, 21) downstream of the cutting tool (3) of the selective cut heading machine (2) in two transverse planes (14, 15) that are arranged behind one another in the longitudinal heading direction in circumferential offset relationship. The lagging mats (18, 19) are then unrolled simultaneously to the face advancement in the longitudinal heading direction so as to overlap laterally and are instantly aligned upon the rock. Once the lagging mats (18, 19) have been entirely unrolled, the working steps are successively repeated in accordance with the length of the face advancement with new lagging mats (18, 19) that adjoin the lagging mats (18, 19) previously laid. The roadway support (7) is introduced at a distance to the cutting tool (3) while fixing the lagging mats (18, 19).

Abstract: A method for recycling in place an asphalt mixture layer of a paved road continuously, while moving a self-propelled vehicle system, which comprises a step of heating and softening the asphalt mixture layer, a step of scraping and breaking said hot and softened asphalt mixture layer and keeping the softened mixture at a temperature sufficient not to form an aggregate, to prepare an asphalt mixture having a single-grained structure, a sieving step of classifying said asphalt mixture having a single-grained structure into a plurality of grain size groups, a step of designing mix proportions for converting said asphalt mixture to a recycled asphalt mixture by the use of said plurality of grain size groups classified, a step of mixing uniformly said recycled asphalt mixtures having designed mix proportions, and a step of spreading and compacting said recycled asphalt mixtures having been mixed uniformly, to thereby form a recycled asphalt mixtures layer.

Abstract: A curb, brick, decorative block, landscaping tie or the like, installed between a border area and a paving area can be protected from damage and soiling caused by paving operations by the installation of a flexible protective film, such as a web of polymer film, surrounding the exposed surfaces of the curb border. The flexible protective film extends next to and preferably away from the curb border onto a foundational underlayment surface and beneath the paving surface, thereby effectively securing and sealing a portion of the flexible film with the pavement. After paving is completed, the used and soiled flexible protective film is loosened from the curb border after the paving operation and is fully removed by cutting, tearing or lifting it away from the curb-paving interface thereby leaving a clean and attractive curb-paving border.

Abstract: A fascine comprises a plurality of elongate hollow inflatable pipes (10). The pipes (10) can be surmounted by a trackway (11) formed by track sections (28) that are also inflatable. The pipes (10) in the track sections (28) can be vacuum packed for compact transportation and easy deployment.

Abstract: The present invention relates to a method of repairing a crack in a paved surface. This method involves applying a watertight tape over a crack in a paved surface to cover the crack and form a first layer. The tape is applied with an adhesive. The first layer is contacted with a first liquid acrylic adhesive. The first layer is covered with a polyester fabric to form a second layer that adheres to the first layer. The polyester fabric is impregnated with a second liquid acrylic adhesive. A fiberglass sheet is adhered to at least a portion of the second layer and to the paved surface beyond edges of the second layer to form a transition layer over the edges. Also disclosed is a system for repairing a crack in a paved surface.

Abstract: A power trowel is provided for finishing concrete. The trowel can be used to finish concrete at different stages of hardening. The handle of the trowel is rotated both to adjust the speed of rotation of the trowel blades and the cant of the trowel blades.