WO2017139557A1 - Système et procédé de surfaçage - Google Patents

Système et procédé de surfaçage Download PDF

Info

Publication number
WO2017139557A1
WO2017139557A1 PCT/US2017/017345 US2017017345W WO2017139557A1 WO 2017139557 A1 WO2017139557 A1 WO 2017139557A1 US 2017017345 W US2017017345 W US 2017017345W WO 2017139557 A1 WO2017139557 A1 WO 2017139557A1
Authority
WO
WIPO (PCT)
Prior art keywords
pavement surface
spreadable
spreadable material
mam
pavement
Prior art date
Application number
PCT/US2017/017345
Other languages
English (en)
Inventor
Michael James Donelson
Original Assignee
Donelson Construction Co., Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US15/042,966 external-priority patent/US9879387B2/en
Application filed by Donelson Construction Co., Llc filed Critical Donelson Construction Co., Llc
Publication of WO2017139557A1 publication Critical patent/WO2017139557A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/16—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Definitions

  • the field of the disclosure relates generally to pavement resurfacing and, more particularly, to a method and systems for re-surfacing a pavement surface using a material dispersal and application device.
  • Re-surfacing is a solution which improves skid resistance and the overall quality of these surfaces by applying a uniform layer of a resurfacing material to the surface.
  • the layer of re-surfacing material is applied to the surface using a truck, or other mobile device, as it travels along the surface.
  • the resurfacing material may typically include a slurry material, emulsion oil, and/or an aggregate. The choice of material and method of application may vary depending at least on the project and any desired or necessary characteristics of the re-surfaced pavement.
  • At least some known systems for pavement re-surfacing use a spray system to apply the re-surfacing material.
  • a spray system is capable of applying a uniform layer of re-surfacing material to the roadway.
  • spray systems are susceptible to clogging.
  • a spray system for re-surfacing using a re-surfacing material including aggregate that is sufficiently large may result in clogging of the spray system.
  • clogging may be lessened by using a re-surfacing material having smaller aggregate.
  • this imposes a limit on at least the functionality of the roadway.
  • a system for re-surfacing a pavement surface includes a conduit configured to transfer a spreadable material and a material application and dispersal device (MADD) coupled in flow communication with the conduit.
  • the MADD includes at least one material application mechanism (MAM) coupled in flow communication with the conduit.
  • the system also includes a pressurization device coupled in flow communication with the conduit and the MADD. The pressurization device is configured to channel the spreadable material into the at least one MAM and to generate a positive pressure within the at least one MAM to facilitate delivering the spreadable material to the pavement surface.
  • a material application dispersing device for use with a re-surfacing system for re-surfacing a pavement surface.
  • the MADD includes a frame including at least one first support member and a plurality of second support members coupled to the at least one first support member.
  • the MADD also includes at least one material application mechanism (MAM) coupled to the at least one first support member.
  • the MAM includes a vessel having a plurality of walls that define a cavity and a bottom opening and an inlet coupled in flow communication with a source of spreadable material. The inlet is configured to channel the spreadable material to the cavity such that a positive pressure is generated within the cavity to facilitate delivering the spreadable material through the bottom opening to the pavement surface.
  • a method for re-surfacing a pavement surface using a pavement resurfacing device applying a first spreadable material to the pavement surface using a first delivery mechanism of the pavement resurfacing device. The first spreadable material is then dispersed on the pavement surface using a first dispersing bar of the pavement resurfacing device. The first dispersing bar is configured to apply substantially uniform pressure across the pavement surface. The method also includes applying a second spreadable material to the first spreadable material on the pavement surface using a second delivery mechanism of the pavement resurfacing device. [0008] In yet another aspect, a method for re-surfacing a pavement surface is provided.
  • the method includes applying a first spreadable material to the pavement surface using a first delivery mechanism and dispersing the first spreadable material on the pavement surface using a first dispersing bar.
  • the first spreadable material is dispersed within a range of approximately less than 1 second to approximately 2 minutes after applying the first spreadable material.
  • the method also includes applying a second spreadable material to the first spreadable material on the pavement surface using a second delivery mechanism. The second spreadable material is applied within a range of approximately less than 1 second to approximately 2 minutes after dispersing the first spreadable material.
  • FIG. 1 is a schematic top view of an exemplary material application and dispersal device having a plurality of exemplary material application mechanisms for use in a re-surfacing system;
  • FIG. 2 is a schematic front view of the material application and dispersal device shown in FIG. 1;
  • FIG. 3 is a schematic side view of the material application and dispersal device shown in FIG. 1;
  • FIG. 4 is a schematic bottom view of an alternative material application and dispersal device that may be used in the re-surfacing system
  • FIG. 5 is a schematic diagram of an alternative material application mechanism that may be used with the material application and dispersal device shown in FIG. 1.
  • FIG. 6 is block diagram of an exemplary system for re-surfacing a pavement surface including the material dispersal device shown in FIG. 1;
  • FIG. 7 is a block diagram of an exemplary system for re-surfacing a pavement surface similar to the system shown in FIG. 6;
  • FIG. 8 is a block diagram of another exemplary system for resurfacing a pavement surface similar to the system shown in FIG. 6;
  • FIG. 9 is a block diagram of a further exemplary system for resurfacing a pavement surface similar to the system shown in FIG. 6;
  • FIG. 10 is a block diagram of a further exemplary system for resurfacing a pavement surface similar to the system shown in FIG. 6;
  • FIG. 11 is a flow diagram of an exemplary method for re-surfacing a pavement surface
  • FIG. 12 is a flow diagram of another exemplary method for resurfacing a pavement surface
  • FIG. 13 is a flow diagram of a further exemplary method for resurfacing a pavement surface similar to the method of FIG. 12;
  • FIG. 14 is a flow diagram of yet another exemplary method for resurfacing a pavement surface similar to the method of FIG. 12.
  • the apparatus, systems, and methods herein describe resurfacing of a pavement surface. More specifically, the apparatus, systems, and methods described herein are designed to re-surface a pavement surface with a material application and dispersal device (MADD) by applying a first material with a first delivery mechanism of the MADD, then dispersing the first material with a first dispersing device of the MADD either simultaneously or within seconds of applying the first material.
  • MADD material application and dispersal device
  • the apparatus, systems, and methods described herein also include applying a second material to the first material using a second delivery mechanism of the MADD, then dispersing the second material with a second dispersing device of the MADD either simultaneously or within seconds of applying the second material.
  • slurry describes a cold (ambient or low temperature) aggregate and bitumen blend. Such a slurry is conventionally compounded with water for effective mixing and may contain a catalyst or retarder to affect the composition's cure time, or other catalyst to aid in curing along with other additives.
  • seal describes a chip seal or a slurry using a fine aggregate.
  • microsurfacing describes a chemically driven, typically quicker curing slurry composition.
  • emulsion oil describes emulsified bitumen (asphalt), which is a combination of water, bitumen, and an emulsifier (soap) that allows homogenous compounding of the water and bitumen.
  • the term "rejuvenator/rejuvenating material/rejuvenating oil” describes the lighter oil fraction of asphalt bitumen. This lighter fraction is usually the first to be lost when exposed to the elements (i.e. sunlight, water, and oxygen). It is found advantageous to apply this material to the road surface by itself or in compound with straight (emulsified) bitumen, or other slurry type materials to replenish those lost light oils.
  • hot mix asphalt or asphaltic concrete describes a hot aggregate and bitumen blend. This includes “warm mix” asphalt compositions.
  • cold mix asphalt describes a low or ambient temperature aggregate blended with bitumen. Typically, slurry seal and micro-surfacing fall into this category.
  • chip seal surface describes bitumen sprayed or otherwise applied onto a road surface and covered by aggregate to create a new wearing/driving surface.
  • the term "delivery mechanism” describes any biased or unbiased device(s) or structure(s), or combination thereof that is the vehicle or pathway for a spreadable material to be transferred, or “delivered” from a source tank or mixing chamber to a pavement surface.
  • the delivery mechanism(s) may be fully or partially enclosed to allow controllable flow of the spreadable material to the pavement surface. For instance, spreadable material that is applied onto a pavement surface, and spread across that surface with an auger or similar dispersing device, may be applied uniformly or not uniformly, depending upon desired results.
  • the term "dispersing/dispersal mechanism/device/bar” describes any biased or unbiased device(s) or structure(s), or combination thereof that facilitates spreading the spreadable material into cracks formed in the pavement surface and/or into a generally uniform layer of material on the pavement surface.
  • FIG. 1 is a schematic view of a material application and dispersal device (MADD) 100 for use in a re-surfacing system 200 in accordance with one embodiment of the disclosure.
  • FIG. 2 is a schematic front view of MADD 100
  • FIG. 3 is a schematic side view of MADD 100.
  • System 200 also includes a source 102 of spreadable material and a pressurization device 104 coupled in flow communication with source 102 via a conduit 103 to facilitate channeling the spreadable material between source 102 and MADD 100.
  • MADD 100 includes a frame 106, a material application assembly (MAA) 108 coupled to frame 106, and a depth control device 110 coupled to frame 106.
  • Frame 106 includes at least one first support member 112 and a plurality of second support members 114 coupled to first support member 112.
  • First support member 112 is coupled to MAA 108 and is oriented substantially perpendicular to a direction of travel of MADD 100. More specifically, first support member 112 is adjustably coupled to second support member 114 such that first support member 112 provides a modifiable downward force on MAA 108 to change the contact pressure of MAA 108 on a pavement surface 116.
  • MADD 100 includes a single first support member 112 and MAA 108. In other embodiments, MADD 100 includes more than one first support member 112 and MAA 108. Second support members 114 are coupled to a mobile device (not shown) such as a truck, or other mobile device, as it travels along pavement surface 116. Second support members 114 are oriented substantially parallel to the direction of travel and are also coupled to depth control device 110. [0035] In the exemplary embodiment, MADD 100 is configured to apply the spreadable material (e.g., a slurry material, an emulsion oil, a micro-surfacing material, resin, rejuvenator, or other material) uniformly to pavement surface 116 through MAA 108.
  • the spreadable material e.g., a slurry material, an emulsion oil, a micro-surfacing material, resin, rejuvenator, or other material
  • MAA 108 includes a plurality of segmented, independently biased material application mechanisms (MAMs) 118 coupled to first support member 112. Each MAM 118 applies the spreadable material to pavement surface 116. More specifically, MAMs 118 are segmented with sufficient frequency across a width of MADD 100 so they apply sufficient pressure to the spreadable material and allow uniform dispersion of the spreadable material when pavement surface 116 is uneven, e.g., when pavement surface 116 is a roadway with surface wheel -rutting.
  • MAA 108 is described herein as including a plurality of MAMs 118, in some embodiments, MAA 108 includes a single MAM 118 that spans a full width of MADD 100.
  • pressurization device 104 is a pump that continuously recirculates the spreadable material between source 102 and MAMs 118 of MADD 100.
  • pressurization device 104 is any device, for example, but not limited to, pneumatic, hydraulic, mechanical, or other biasing mechanisms that facilitate operation of MADD 100 as described herein.
  • each MAM 118 at least partially forms a seal with pavement surface 116 and pressurization device 104 generates a positive pressure within each MAM 118 that forces the spreadable material into cracks formed in pavement surface 116 to apply a re-surfacing layer of spreadable material.
  • MAA 108 then smooths the deposited spreadable material over pavement surface 116.
  • Depth control device 110 then passes over the re-surfacing layer of spreadable material to control the depth of the resurfacing layer.
  • depth control device 110 is a mechanical device that is dragged over the re-surfacing layer.
  • depth control device 110 is a pneumatic device that expels air through a fine nozzle (air blade).
  • depth control device 110 also texturizes the re-surfacing layer.
  • MAA 108 includes a plurality of MAMs 118 coupled together such that MAMs 118 form a single linked row that spans the width of MADD 100. Furthermore, a portion of each MAM 118 is offset with respect to an adjacent MAM 118 such that portions of adjacent MAMs 118 overlap. Offsetting each MAM 118 with respect to an adjacent MAM 118 facilitates smoothing any ridge that may form at opposing ends of MAMs 118 and evenly dispersing the spreadable material.
  • MAA 108 includes a plurality of connecting links 120 that pivotally couple adjacent MAMs 118 to one another.
  • Connecting links 120 enable one MAM 118 to pivot with respect to the adjacent MAM 118 to which it is coupled in response to changes in pavement surface 116 contour.
  • each MAM 118 is independently pivotable with respect to adjacent MAMs 118 to facilitate delivering an even re-surfacing layer of spreadable material onto pavement surface 116.
  • connecting links 120 also couple adjacent MAMs 118 in fluid communication with each other and facilitate channeling the spreadable material through the plurality of coupled MAMs 118. More specifically, each MAM 118 includes a connecting link inlet 120a for receiving a flow of spreadable material and a connecting link outlet 120b for discharging a portion of the flow of spreadable material from the MAM 118.
  • connecting links 120 serve two purposes: 1) to pivotally couple adjacent MAMs 118 such that each MAM 118 maintains continuous contact with pavement surface 116; and 2) to couple adjacent MAMs 118 in flow communication to facilitate channeling the spreadable material therethrough.
  • each MAM 118 includes a pair of connecting links 120 for coupling to adjacent MAMs 118, but each MAM 118 also includes a separate spreadable material inlet 121a and a spreadable material outlet 121b spaced away from connecting links 120.
  • an optional application device 123 that may be used to apply the spreadable material to pavement surface 116.
  • application device 123 is a ball valve positioned within MAM 118. The ball gets displaced when MAM 118 is biased downward toward pavement surface 116 and allows the spreadable material to flow from within MAM 118, through the ball valve, and onto pavement surface 116.
  • MAA 108 also includes a plurality of biasing elements 122 coupled between MAA 108 and first support member 112. More specifically, MAA 108 includes at least one biasing element 122 coupled between each MAM 118 and first support member 112.
  • biasing elements 122 provide a downward biasing force onto an associated MAM 118 such that MAM 118 maintains a seal with pavement surface 116.
  • biasing elements 122 enable each MAM 118 to move vertically and rotate in order to follow the contour of pavement surface 116.
  • each MAM 118 includes a vessel 124 having a plurality of walls 126 that form a cavity 128 within vessel 124. Walls 126 also define an opening 129 at a bottom of vessel 124 proximate pavement surface 116. Opening 129 is in flow communication with cavity 128 such that the spreadable material can be channeled from cavity 128 through bottom opening 129 to pavement surface 116.
  • bottom opening 129 includes a length that extends a majority of a length of MAM 118 and a width within a range of approximately 0.5 inches (in.) to 2.0 in.
  • bottom opening 129 includes any dimensions that facilitate operation of MAM 118 as described herein.
  • each cavity 128, such as by pressurization device 104, which facilitates channeling the spreadable material through adjacent MAMs 118 and applying the spreadable material to pavement surface 116.
  • a portion of the spreadable material that is channeled into each cavity 128 is further channeled to an adjacent MAM 118, through connecting links 120, and a second portion of the spreadable material is applied to pavement surface 116 through bottom opening 129.
  • connecting links 120 serve to channel the spreadable material between adjacent MAMs 118. More specifically, links 120 couple cavities 128 of adjacent MAMs 118 in fluid communication to enable the spreadable material to flow therethrough.
  • MAMs 118 are linked together in a chain such that MAA 108 includes a single inlet and a single outlet coupled to pressurization device 104 which recirculates the spreadable material between source 102 and MAA 108 without being coupled to each individual MAM 118.
  • each MAM 118 is coupled individually to pressurization device 104 to facilitate channeling the spreadable material to each MAM 118 independently.
  • each MAM 118 includes a dispersing element 130.
  • dispersing element 130 is coupled to a rear wall of the plurality of walls 126 of vessel 124 and evenly disperses the spreadable material after it has been applied to pavement surface 116.
  • dispersing element 130 is either a brush or a blade (e.g., a squeegee).
  • dispersing element 130 is any other means of evenly dispersing the spreadable material on pavement surface 116.
  • the type of dispersing element 130 is determined by the desired application characteristics.
  • a brush may be desirable when applying an emulsion oil to pavement surface 116 to facilitate urging the emulsion oil into voids, or cracks, in the pavement surface.
  • a blade may be desirable when applying a spreadable material to the pavement surface 116 to facilitate application of a smooth and even layer of the spreadable material due to its more rigid construction when compared to a brush.
  • each MAM 118 also includes a sealing element 132 coupled to vessel 124 proximate pavement surface 116. Sealing elements 132 are biased downward by at least one of first supporting member 112 and biasing elements 122 to contact pavement surface 116. As such, sealing elements 132 at least partially form a seal between MAM 118 and pavement surface 116 such that the positive pressure within cavity 128 of MAM 118 is generated. More specifically, a combination of sealing elements 132, biasing elements 122, walls 126, and pressurization device 104 completely enclose cavity 128 to create a positive pressure differential between cavity opening 129 and the ambient atmosphere.
  • the term "positive pressure” is used to describe a pressure level within cavity 128 of MAM 118 that is greater than the nominal head pressure caused by the weight of the spreadable material pushing down on itself in an open container exposed to ambient conditions. That is, the enclosed cavity 128 formed by walls 126, sealing element 132, and pavement surface 116 enables pressurization device 104 to increase the pressure within cavity 128 to a level greater than would be attainable if cavity 128 were not enclosed. More specifically, in the exemplary embodiment, the pressure within cavity 128 during operation is within a range of 1 pound per square inch (psi) to 15 psi. In another embodiment, the pressure within cavity 128 during operation is within a range of 1 psi to 5 psi. In yet another embodiment, the pressure within cavity 128 during operation is within a range of 6 psi to 10 psi.
  • This pressure differential creates the positive pressure within cavities 128 that facilitate injecting the spreadable material into cracks in pavement surface 116.
  • Generating positive pressure within MAMs 118 enables the use of a more viscous spreadable material that, under non- positively pressurized conditions, would not flow through conduit 103 and MAMs 118 and into a crack in pavement surface 116.
  • the use of a more viscous material is advantageous because once the spreadable material is injected into the crack, it is more likely to remain in the crack and fill the void to create a smooth surface 116.
  • Sealing elements 132 are formed from a resilient material, for example but not limited to rubber, plastic, and natural or synthetic fibers, such that sealing elements 132 may change shape follow the contour of pavement surface 116 to maintain continuous contact with pavement surface 116.
  • sealing elements 132 include any combination of a unitary component, a plurality of strips, and a plurality of bristles.
  • sealing elements 132 are formed from any material in any configuration that facilitates operation of MADD 100 as described herein.
  • each sealing element 132 includes a bottom opening 134 in flow communication with cavity 128 such that the spreadable material can be channeled from cavity 128 through bottom opening 129 and through bottom opening 134 to pavement surface 116.
  • FIG. 4 is a schematic diagram of an alternative material application assembly (MAA) 150 that may be used with MADD 100 shown in FIG. 1.
  • MAA 150 includes a first plurality of MAMs 118, as described above, and a second plurality of MAMs 152 alternatingly-spaced with MAMs 118.
  • MAMs 152 include two MAMs 118 coupled together with a neck portion 154. More specifically, each MAM 152 includes a first MAM 156 and a second MAM 158 spaced by neck portion 154. MAMs 156 and 158 and neck portion 154 form an I shape that defines a pair of opposing notches 160 that receive a MAM 118 therein.
  • MAM 118 overlaps with each of MAM 156 and 158 and is coupled each of MAM 156 and 158 by connecting links 120, similar to links 120 as in MAA 108.
  • links 120 similar to links 120 as in MAA 108.
  • MAA 150 forms a single row of MAMs 118, 156, and 158 that are offset to at least partially overlap each other to smooth out any seams that form in the spreadable material at the edges of MAMs 118, 156, and 158.
  • overlapping MAMs 118, 156, and 158 mitigates or eliminates trapping air within cracks on pavement surface 116 that are perpendicular to the direction of travel. Furthermore, overlapping MAMs 118, 156, and 158 along the direction of travel causes multiple pulses or injections of spreadable material in to a single crack in pavement surface 116 as MADD 100 passes over the crack.
  • each MAM 118 and 152 delivers and disperses the same spreadable material.
  • MAMs 118 and 152 deliver and disperse different spreadable materials.
  • MAM 118 delivers and disperses the same spreadable material as one of MAMs 156 or 158, but a different material that the remaining one of MAM 156 or 158.
  • MADD 100 uniformly applies spreadable material to a pavement surface 116.
  • MAMs 118 of MAA 108, or MAMs 118, 156, and 158 of MAA 150, are configured to move vertically and rotate so that each MAM 118, 156, and 158 follows the contour of the pavement surface 116.
  • first and second support members 112 and 114 of MADD 100 are adjustably coupled to frame 106 such that the contact pressure of each MAM 118, 156, and 158 can be changed to maintain the seal between MAMs 118, 156, and 158 and surface 116. Therefore, MADD 100 is configurable to apply even contact pressure along the contour of the pavement surface 116 to effect uniform application of spreadable material to the pavement surface 116.
  • FIG. 6 is a block diagram of an exemplary system 200 for resurfacing a pavement surface including a material dispersal device 100 (shown in FIG. 1).
  • System 200 may be implemented using any mobile device configurable for re-surfacing applications.
  • the mobile device may be a truck equipped with material storage facilities, pumps, plumbing, towing means, and other equipment which allow the mobile device to store, transport, disperse, and distribute material to micro-surface a pavement surface. During operation, material is applied as the mobile device moves across the pavement surface thereby re-surfacing the pavement surface.
  • a slurry material 202 is stored in a mobile device (not shown), e.g., in bulk tank storage of the mobile device.
  • Slurry material 202 includes emulsified oil and aggregate, such as but not limited to a chip seal or asphaltic concrete (hot mix asphalt).
  • Slurry material 202 may further include one or more of emulsified asphalt, water, catalysts (e.g., Portland cement), chemicals to slow system break, fiber material, and other materials.
  • slurry material 202 is a micro-surfacing material used to micro-surface a roadway.
  • slurry material 202 is a seal coat.
  • slurry material 202 is an emulsion oil and is used to facilitate a crack sealing process. Slurry material 202 may be pre-mixed off site, compounded on the mobile device, or a combination of both.
  • slurry material 202 may be mixed 204 with additives 206 to improve ductility, adhesion, crack sealing, toughness, or other similar properties.
  • Mixing 204 may be accomplished using any standard means, e.g., using line injection.
  • the resulting mixture may be distributed on the paved surface using a delivery mechanism 208 (e.g., a spray bar).
  • Delivery mechanism 208 includes one or more apertures or slits, and is configured to controllably apply material to the pavement surface. Delivery mechanism 208 may further be configured to produce a gravity flow or a pressurized flow.
  • delivery mechanism 208 is a component of the mobile device (or is coupled with the mobile device).
  • delivery mechanism 202 is a component of MADD 100 and includes a MAA 108 having at least one MAM 118.
  • delivery mechanism 208 facilitates application of the spreadable material to the pavement surface in a layer with substantially uniform thickness.
  • spreadable material 202 is blended by the pump action of delivery mechanism 208. Once blended, spreadable material 202 will begin to destabilize (or break) and eventually cure. The components of spreadable material 202 affect how quickly material 202 will cure after destabilization begins.
  • delivery mechanism 208 agitates slurry material 202 (e.g., by the pumping action) to slow destabilization while spreadable material 202 is transported to the point of application.
  • system 200 includes a dispersing bar 210 configured to disperse the spreadable material mixture on the pavement surface.
  • dispersing bar 210 is either a brush or a blade (e.g., a squeegee) system similar to dispersing element 130.
  • dispersing bar 210 is any other means of evenly dispersing the spreadable material on pavement surface 116.
  • dispersing bar 210 is a component of the mobile device (or is coupled with the mobile device).
  • dispersing bar 210 is a component of MADD 100, such as dispersing elements 130, (or is coupled with material dispersal device 100).
  • system 200 includes a thermal bias (not shown) located proximate dispersing bar 210. The thermal bias is used to induce heat to the slurry material mixture, e.g., to reduce the viscosity of the mixture such that it may be more easily urged into voids or cracks in the pavement surface.
  • spreadable material 202 is mixed 212 then introduced into MADD 100 to re-surface the pavement surface.
  • the mobile device includes a pugmill, a pump and spray system, or other device for mixing 212 spreadable material 202.
  • the mobile device further includes standard equipment to transport slurry material 202 to MADD 100.
  • Spreadable material 202, once mixed 212, is applied to the pavement surface by MADD 100.
  • MADD 100 is configured to uniformly apply spreadable material 202 to the pavement surface.
  • some or all of spreadable material 202 is distributed and dispersed on the pavement surface using a delivery mechanism 214 and a dispersing bar 216.
  • Delivery mechanism 214 is configured to controllably apply spreadable material 202 to the pavement surface and dispersing bar 216 is a brush or blade system configured to disperse spreadable material 202 on the pavement surface in a layer having substantially uniform thickness.
  • spreadable material 202 includes a first slurry material, a fiber material, and a second slurry material.
  • first slurry material is mixed 204 and applied to the pavement surface
  • the fiber material is applied to the pavement surface
  • the second spreadable material is mixed 212 and applied to the pavement surface.
  • the fiber material is a single fiber material.
  • the fiber material is a composition including one or more different fiber materials, where each of the different fiber materials has unique size, shape, strength, texture, or other characteristics.
  • a first slurry material is applied to the pavement surface by a first delivery mechanism
  • a fiber material is applied to the pavement surface by a second delivery mechanism
  • a second slurry material is applied to the pavement surface by a third delivery mechanism.
  • a resurfaced pavement is created by passing a material dispersal device over the first slurry material, the fiber material, and the second slurry material.
  • a resurfaced pavement is created by passing a dispersing bar over the materials, where the dispersing bar is configured to apply substantially uniform pressure across the pavement surface.
  • spreadable material 202 includes a first slurry material and a second slurry material, where the first slurry material and the second slurry material are different.
  • first slurry material is mixed 204 and applied to the pavement surface and the second slurry material is mixed 212 and introduced into MADD 100 (or applied to the pavement surface).
  • MADD 100 or applied to the pavement surface.
  • a first slurry material is applied to the pavement surface by a first MADD 100 and a second slurry material is applied to the pavement surface by a second MADD 100.
  • the first slurry material is dispersed on the pavement surface by a dispersing bar to facilitate crack filling (or crack sealing) by urging the first slurry material into cracks (or voids) in the pavement surface.
  • a re-surfaced pavement is created by passing a material dispersal device over the first slurry material and the second slurry material.
  • a re-surfaced pavement is created by passing a dispersing bar over the slurry materials, where the dispersing bar is configured to apply substantially uniform pressure across the pavement surface.
  • the material dispersal device may or may not include an auger.
  • FIGS. 7 through 10 illustrate exemplary systems having some or all of the elements of system 200 shown in FIG. 2. These systems represent alternative embodiments of system 200 shown in FIG. 2 for re-surfacing a pavement surface. These systems may be implemented using any mobile device suited for re-surfacing applications.
  • the mobile device may be a truck equipped with material storage facilities, pumps, plumbing, towing means, and other equipment which allow the mobile device to store, transport, disperse, and distribute material to micro-surface a pavement surface. During operation, slurry material is applied as the mobile device moves across the pavement surface thereby re-surfacing the pavement surface.
  • FIG. 7 is a block diagram of an alternative system 300 for resurfacing a pavement surface similar to system 200 shown in FIG. 6.
  • System 300 includes a delivery mechanism 302, a dispersing bar 304, a MADD 100, an additional delivery mechanism 306, an additional dispersing bar 308, and optionally includes a finishing bar 310.
  • delivery mechanisms 302 and 306 are components of MADD 100 and each include a MAA 108 having at least one MAM 118.
  • Slurry material is applied to the pavement surface by MADD 100.
  • Delivery mechanism 302 applies a primer coating, a slurry, and/or other material to the pavement surface which is dispersed by dispersing bar 304. Additional material may be applied and dispersed by delivery mechanism 306 and dispersing bar 308.
  • MADD 100 includes both delivery and dispersal mechanisms (MAMs 118 with dispersing elements 130) and, as such, can be used to deliver and disperse a single material and additional MADDs 100 can be used to deliver and disperse additional materials.
  • MAMs 118 with dispersing elements 130 delivery and dispersal mechanisms
  • FIG. 8 is a block diagram of another alternative system 400 for resurfacing a pavement surface similar to system 200 shown in FIG. 6.
  • System 400 includes a delivery mechanism 402, a dispersing bar 404, a MADD 100, and optionally includes a finishing bar 406.
  • delivery mechanism 402 is a component of MADD 100 and includes MAA 108 having at least one MAM 118.
  • Slurry material is applied to the pavement surface by MADD 100.
  • Delivery mechanism 402 applies a primer coating, slurry material, and/or other material to the pavement surface which is dispersed by dispersing bar 404. Slurry material is then applied to the pavement surface by MADD 100.
  • Finishing bar 406 is used to texture, or otherwise finish, the re-surfaced pavement.
  • FIG. 9 is a block diagram of a further alternative system 500 for resurfacing a pavement surface similar to system 200 shown in FIG. 6.
  • System 500 includes a MADD 100, a delivery mechanism 502, a dispersing bar 504, and optionally includes a finishing bar 506.
  • delivery mechanism 502 is a component of MADD 100 and includes MAA 108 having at least one MAM 118. Slurry material is applied to the pavement surface by MADD 100.
  • MADD 100 includes both delivery and dispersal mechanisms (MAMs 118 with dispersing elements 130) and, as such, can be used to deliver and disperse a single material and additional MADDs 100 can be used to deliver and disperse additional materials.
  • MAMs 118 with dispersing elements 130 delivery and dispersal mechanisms
  • FIG. 10 is a block diagram of an alternative system 600 for resurfacing a pavement surface similar to system 200 shown in FIG. 6.
  • System 600 includes MADD 100 including a first delivery mechanism 602, a first dispersing bar 604, a second delivery mechanism 606, a second dispersing bar 608, and optionally includes a finishing bar 610.
  • delivery mechanisms 602 and 606 are components of MADD 100 and each include a MAA 108 having at least one MAM 118.
  • First delivery mechanism 602 applies a first spreadable material chosen from a slurry, a microsurfacing material, an emulsion oil, a rejuvenating oil, or any combination thereof to the pavement surface which is then dispersed by first dispersing bar 604.
  • Second delivery mechanism 606 applies a second spreadable material chosen from a slurry, a microsurfacing material, an emulsion oil, a rejuvenating oil, a hot mix asphalt, a cold mix asphalt, or a chip seal surface. Second dispersing bar 608 then disperses the second spreadable material on the pavement surface. Finishing bar 610 is optionally used to texture, or otherwise finish, the re-surfaced pavement.
  • first and second delivery mechanisms 602 and 606 along with first and second dispersing bars 604 and 608 are components of MADD 100 such that second delivery mechanisms 602 and 606 along with first and second dispersing bars 604 and 608 are all dragged behind a single mobile device, such as a truck.
  • the first and second spreadable materials are applied to and dispersed on the pavement surface in a single pass of the mobile device over the pavement surface. More specifically, the first spreadable material is dispersed by first dispersing bar 604 within a range of approximately less than one second and approximately two minutes from the time the first spreadable material is applied to the pavement surface.
  • the first spreadable material is dispersed by first dispersing bar 604 within a range of approximately less than one second and approximately one minute, within a range of approximately less than one second and approximately thirty seconds, within a range of approximately less than one second and approximately twenty seconds, within a range of approximately less than one second and approximately ten seconds, and within a range of approximately less than one second and approximately five seconds from the time the first spreadable material is applied to the pavement surface.
  • the second spreadable material is applied to the pavement surface by the second delivery mechanism 606 within a range of approximately less than one second and approximately two minutes from the time the first spreadable material is dispersed by first dispersing bar 604 on the pavement surface. More specifically, the second spreadable material is applied by second delivery mechanism 606 within a range of approximately less than one second and approximately two minutes from the time the first spreadable material is dispersed on the pavement surface.
  • the second spreadable material is applied by second delivery mechanism 606 within a range of approximately less than one second and approximately one minute, within a range of approximately less than one second and approximately thirty seconds, within a range of approximately less than one second and approximately twenty seconds, within a range of approximately less than one second and approximately ten seconds, and within a range of approximately less than one second and approximately five seconds from the time the first spreadable material is dispersed onto the pavement surface.
  • FIG. 11 is a flow diagram of an exemplary method 700 for resurfacing a pavement surface.
  • method 700 is implemented by a re-surfacing system including a material dispersal device, such as system 200 shown in FIG. 2.
  • a first material is applied 702 to the pavement surface.
  • the first material may be a primer coating, and/or other re-surfacing material such as an emulsion oil, slurry material, or aggregate.
  • the first material is dispersed 704 on the pavement surface.
  • dispersing 704 the first material on the pavement surface facilitates a crack filling (or crack sealing) process by urging the first material into voids, or cracks, in the pavement surface using MADD 100.
  • dispersing 704 facilitates uniform spreading of the first material to allow a layering effect with subsequently applied materials.
  • Slurry material is applied 706 to the pavement surface using a material dispersal device, such as MADD 100 shown in FIG. 1.
  • the material dispersal device is configured to follow the contour of the pavement surface and apply 706 a uniform layer of material.
  • the slurry material includes emulsified oil and aggregate.
  • the slurry material may also include one or more of emulsified asphalt, water, catalysts (e.g., Portland cement), chemicals to slow system break, fiber material, and other materials.
  • the slurry material is an emulsion oil and is used to facilitate a crack sealing process.
  • a second material is applied 708 and dispersed 710 on the pavement surface.
  • the second material may be an emulsion oil, slurry material, or aggregate, such as but not limited to a chip seal or asphaltic concrete (hot mix asphalt).
  • the second material is used to coat or seal the re-surfaced pavement, or to achieve desired coloring of the re-surfaced pavement.
  • the re-surfaced pavement is textured 712 to achieve a surface texture of the re-surfaced pavement. For example, texturing may achieve a surface texture that provides an enhanced driving surface when the re-surfaced pavement is a roadway.
  • FIG. 12 is a flow diagram of another exemplary method 800 for resurfacing a pavement surface.
  • Method 800 may be implemented by any suitable resurfacing system and may optionally be implemented by a system including a material dispersal device, such as system 200 shown in FIG. 2.
  • a slurry material is applied 802 to the pavement surface.
  • the slurry material may be applied 802 using MADD 100 or other means, such as an auger, or a spray bar.
  • the applied material may be a primer coating, a micro-surfacing material, or an emulsion oil.
  • the applied slurry material is then dispersed 804 on the pavement surface by MADD 100. Dispersing 804 the slurry material on the pavement surface facilitates crack filling (or crack sealing) by urging the material into voids, or cracks, in the pavement surface.
  • Dispersing 804 the slurry material on the pavement surface also facilitates uniform spreading of the material to allow a layering effect with subsequently applied materials.
  • the slurry material is dispersed 804 using a dispersing bar, such as dispersing element 130 shown in FIG. 1.
  • the dispersing bar is a brush, a blade, or other suitable device, and is configured to apply substantially uniform pressure across the pavement surface.
  • the slurry material may be dispersed 804 using a material dispersal device, such as device 100 shown in FIG. 1.
  • the pavement surface is covered 806 by an aggregate, such as but not limited to a chip seal or asphaltic concrete (hot mix asphalt).
  • the aggregate at least partially combines with material applied to the pavement surface.
  • the aggregate may at least partially settle, draw, or be urged into the applied slurry material on the pavement surface.
  • the aggregate used to cover 806 the pavement surface is chosen based on the application or desired characteristics of the final re-surfaced pavement.
  • the aggregate is a single aggregate.
  • the aggregate is a composition including one or more different aggregates, where each of the different aggregates has a unique size, shape, texture, or other characteristics.
  • FIG. 13 is a flow diagram of a further exemplary method 900 for re-surfacing a pavement surface, similar to method 700 shown in FIG. 7.
  • Method 900 may be implemented by any suitable re-surfacing system and may optionally be implemented by a system including a material dispersal device, such as system 200 shown in FIG. 2.
  • a first slurry material is applied 902 to the pavement surface.
  • the first slurry material is applied 902 using an auger, plumbing, or other means.
  • the first slurry material may be a primer coating, a micro-surfacing material, or an emulsion oil.
  • the first slurry material is dispersed 904 on the pavement surface to facilitate crack filling (or crack sealing) by urging the material into voids, or cracks, in the pavement surface. Dispersing 904 the first slurry material on the pavement surface also facilitates uniform spreading of the first slurry material to allow a layering effect with subsequently applied materials.
  • the first slurry material is dispersed 904 by a brush, a blade, or other suitable device. In other embodiments, the first slurry material is dispersed 904 using a material dispersal device such as MADD 100 shown in FIG. 1.
  • a second slurry material is applied 906 to the pavement surface using an auger, plumbing, or other means.
  • the second slurry material includes emulsified oil and aggregate.
  • the second slurry material may also include one or more of emulsified asphalt, water, catalysts (e.g., Portland cement), chemicals to slow system break, fiber material, and other materials.
  • the second slurry material is an emulsion oil and is used to facilitate a crack sealing process.
  • the first slurry material and the second slurry material are different materials.
  • the first slurry material and the second slurry material are the same material.
  • the second slurry material is applied 906 then dispersed on the pavement surface by a brush, a blade, or other suitable device.
  • the first slurry material, second slurry material, and pavement surface may be covered 908 by an aggregate, such as but not limited to a chip seal or asphaltic concrete (hot mix asphalt).
  • the aggregate at least partially combines with material applied to the pavement surface.
  • the aggregate may at least partially settle, draw, or be urged into the first slurry material, the second slurry material, or both the first and second slurry materials on the pavement surface.
  • the aggregate used to cover 908 the materials and pavement surface is chosen according to the application or desired characteristics of the final re-surfaced pavement. In some embodiments, the aggregate is a single aggregate.
  • FIG. 14 is a flow diagram of an exemplary method 1000 for resurfacing a pavement surface.
  • method 1000 is implemented by a pavement re-surfacing device, such as MADD 100.
  • a first spreadable material is applied 1002 to the pavement surface using a first delivery mechanism of the pavement re-surfacing device, or MADD 100.
  • the first spreadable material is chosen from a slurry, a microsurfacing material, an emulsion oil, a rejuvenating oil, or any combination thereof.
  • the first spreadable material is then dispersed 1004 on the pavement surface using a first dispersing bar of the pavement resurfacing device.
  • dispersing 1004 the first spreadable material on the pavement surface facilitates a crack filling (or crack sealing) process by urging the first spreadable material into voids, or cracks, in the pavement surface using a first dispersing bar of MADD 100.
  • dispersing 1004 facilitates uniform spreading of the first material to allow a layering effect with subsequently applied materials.
  • the first delivery mechanism and the first dispersing bar are both are components of the pavement re-surfacing device (MADD 100)
  • the first delivery mechanism and the first dispersing bar are both dragged behind a single mobile device, such as a truck, as a component of MADD 100.
  • the first spreadable material is applied 1002 and dispersed 1004 on the pavement surface in a single pass of the mobile device over the pavement surface. More specifically, the first spreadable material is dispersed 1004 by the first dispersing bar within a range of approximately less than one second and approximately two minutes from the time the first spreadable material is applied 1002 to the pavement surface.
  • Method 1000 also includes applying 1008 a second spreadable material to the first spreadable material on the pavement surface using a second delivery mechanism of the pavement resurfacing device.
  • the second spreadable material is chosen from a slurry, a microsurfacing material, an emulsion oil, a rejuvenating oil, a hot mix asphalt, a cold mix asphalt, or a chip seal surface.
  • the second spreadable material is used to coat or seal the first spreadable material, or to achieve desired coloring of the first spreadable material.
  • the first spreadable material is different from the second spreadable material. In other embodiments, the first spreadable material is the same material as the second spreadable material.
  • the second spreadable material is then dispersed 1010 using a second dispersing bar of the pavement resurfacing device.
  • dispersing 1010 the second spreadable material on the pavement surface facilitates a crack filling (or crack sealing) process by urging the second spreadable material into voids, or cracks, in the pavement surface using a second dispersing bar of MADD 100.
  • dispersing 1010 facilitates uniform spreading of the second material to allow a layering effect with subsequently applied materials.
  • the second delivery mechanism and the second dispersing bar are also both are components of the pavement re-surfacing device (MADD 100) and are dragged behind a single mobile device, such as a truck, as a component of MADD 100.
  • the second spreadable material is applied 1008 and dispersed 1010 on the first spreadable material in a single pass of the mobile device over the pavement surface. More specifically, the second able material is applied 1008 and dispersed 1010 on the first spreadable material in the same pass over the pavement surface as when the first spreadable material is applied 1002 and dispersed 1004.
  • the second spreadable material is applied 1008 to the pavement surface by the second delivery mechanism within a range of approximately less than one second and approximately two minutes from the time the first spreadable material is dispersed 1004 by the first dispersing bar on the pavement surface. More specifically, the second spreadable material is applied 1008 by second delivery mechanism within a range of approximately less than one second and approximately two minutes from the time the first spreadable material is dispersed 1004 on the pavement surface.
  • the second spreadable material is applied 1008 by the second delivery mechanism within a range of approximately less than one second and approximately one minute, within a range of approximately less than one second and approximately thirty seconds, within a range of approximately less than one second and approximately twenty seconds, within a range of approximately less than one second and approximately ten seconds, and within a range of approximately less than one second and approximately five seconds from the time the first spreadable material is dispersed 1004 on the pavement surface.
  • method 1000 also includes applying 1006 a third spreadable material to the first spreadable material on the pavement surface using a third delivery mechanism of the pavement resurfacing device prior to applying 1008 the second spreadable material with the second delivery mechanism.
  • the third spreadable material includes a fiber material.
  • the third spreadable material is applied 1006 to the second spreadable material on the pavement surface using a third delivery mechanism of the pavement resurfacing device after to applying 1008 the second spreadable material to the first spreadable material.
  • the re-surfaced pavement is textured 1012 using a finishing bar of the pavement re-surfacing device to achieve a surface texture of the resurfaced pavement. For example, texturing 1012 may achieve a surface texture that provides an enhanced driving surface when the re-surfaced pavement is a roadway.
  • the method and systems described herein facilitate re-surfacing a pavement surface.
  • the method and systems for re-surfacing as described above facilitate applying a uniform layer of slurry material to a pavement surface using a material dispersal device configured to follow the contour of the pavement surface.
  • the re-surfacing material is a micro-surfacing material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Road Repair (AREA)

Abstract

L'invention concerne un système de resurfaçage d'une surface de chaussée, comprenant un conduit conçu pour transférer un matériau épandable et un dispositif d'application et de dispersion de matériau (MADD) couplé en communication fluidique avec le conduit. Le dispositif d'application et de dispersion de matériau comprend au moins un mécanisme d'application de matériau (MAM) couplé en communication fluidique avec le conduit. Le système comprend également un dispositif de mise sous pression couplé en communication fluidique avec le conduit et le dispositif d'application et de dispersion de matériau. Le dispositif de mise sous pression est conçu pour canaliser le matériau épandable dans ledit au moins un mécanisme d'application de matériau et pour générer une pression positive au sein dudit au moins un mécanisme d'application de matériau pour faciliter la distribution du matériau épandable sur la surface de chaussée.
PCT/US2017/017345 2016-02-12 2017-02-10 Système et procédé de surfaçage WO2017139557A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/042,966 US9879387B2 (en) 2014-05-06 2016-02-12 Surfacing system and method
US15/042,966 2016-02-12

Publications (1)

Publication Number Publication Date
WO2017139557A1 true WO2017139557A1 (fr) 2017-08-17

Family

ID=59563644

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/017345 WO2017139557A1 (fr) 2016-02-12 2017-02-10 Système et procédé de surfaçage

Country Status (1)

Country Link
WO (1) WO2017139557A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109958024A (zh) * 2019-04-24 2019-07-02 秦皇岛市思嘉特专用汽车制造有限公司 抗滑路面施工设备及其施工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1914950A (en) * 1930-08-21 1933-06-20 Kanen Max Spreader for road surfacing fluid
US5232306A (en) * 1991-12-10 1993-08-03 Sterner Carl L Crackfilling vehicle
US5302051A (en) * 1992-01-16 1994-04-12 Koter Industries, Inc. Applicator blade assembly for resurfacing apparatus
US5765963A (en) * 1996-09-30 1998-06-16 Roberts; Keith A Pavement maintenance vehicle
US20150322632A1 (en) * 2014-05-06 2015-11-12 Donelson Construction Co., Llc Surfacing system and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1914950A (en) * 1930-08-21 1933-06-20 Kanen Max Spreader for road surfacing fluid
US5232306A (en) * 1991-12-10 1993-08-03 Sterner Carl L Crackfilling vehicle
US5302051A (en) * 1992-01-16 1994-04-12 Koter Industries, Inc. Applicator blade assembly for resurfacing apparatus
US5765963A (en) * 1996-09-30 1998-06-16 Roberts; Keith A Pavement maintenance vehicle
US20150322632A1 (en) * 2014-05-06 2015-11-12 Donelson Construction Co., Llc Surfacing system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109958024A (zh) * 2019-04-24 2019-07-02 秦皇岛市思嘉特专用汽车制造有限公司 抗滑路面施工设备及其施工方法

Similar Documents

Publication Publication Date Title
US9879387B2 (en) Surfacing system and method
US10316478B2 (en) Systems and methods for automating the application of friction-modifying coatings
US9689117B2 (en) Paving machine
US8113736B2 (en) Pavement resurfacing equipment and method of application of polymer emulsion
AU2018100493A4 (en) Systems and methods for automating the application of friction-modifying coatings
US20060088379A1 (en) Repairing road surfaces
US7712996B2 (en) Fogging system for an asphalt recycling machine
US20210047791A1 (en) Systems and Methods for Automating the Application of Friction-Modifying Coatings
US9260826B2 (en) Surfacing system and method
US2374732A (en) Method of paving
US7114875B2 (en) Method and apparatus for laying hot blacktop paving material
WO2017139557A1 (fr) Système et procédé de surfaçage
US20200332126A1 (en) Compositions and methods for road surfacing
CA3138636C (fr) Systemes et procedes pour l'automatisation de l'application de revetements modificateurs de la friction
JP2010024791A (ja) 移動式接着剤適用装置及び該装置を利用したアスファルト舗装工法
US20080277052A1 (en) Method and Apparatus for Making Continuous Form Structures with Used Tires
CN101649599A (zh) 环氧沥青专用摊铺机
CA2996411C (fr) Systemes et procedes pour l'automatisation de l'application de revetements modificateurs de frottement
US11060248B2 (en) Actuating resurfacing system and method
DE69507211T2 (de) Vorrichtung und Verfahren zur mobilen Herstellung und Verlegung eines Belags aus Kaltmakadam
AU2018274990A1 (en) Apparatus for Aggregate and Emulsion Application
US10975530B2 (en) Machine, system and method for resurfacing existing roads using premixed stress absorbing membrane interlayer (SAMI) material
KR102646081B1 (ko) 콘크리트도로의 박층포장용 골재 및 에폭시수지 살포장치
RU2246572C2 (ru) Способ ремонта дорожного покрытия
CA2486469C (fr) Reparation des revetements de route

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17750815

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17750815

Country of ref document: EP

Kind code of ref document: A1