EP2584094A1 - Reparaturverfahren einer Bitumenschicht - Google Patents

Reparaturverfahren einer Bitumenschicht Download PDF

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Publication number
EP2584094A1
EP2584094A1 EP12306269.7A EP12306269A EP2584094A1 EP 2584094 A1 EP2584094 A1 EP 2584094A1 EP 12306269 A EP12306269 A EP 12306269A EP 2584094 A1 EP2584094 A1 EP 2584094A1
Authority
EP
European Patent Office
Prior art keywords
coating
mix
crumbled
enclosure
heating
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12306269.7A
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English (en)
French (fr)
Inventor
Daniel Bancon
Pierre Laurent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gravasac
Original Assignee
Gravasac
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
Application filed by Gravasac filed Critical Gravasac
Publication of EP2584094A1 publication Critical patent/EP2584094A1/de
Withdrawn legal-status Critical Current

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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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving
    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint

Definitions

  • the present invention relates to a method of repairing a bituminous coating.
  • the pavement of a pavement can be made using hot mixes.
  • This type of mix is hot-made at a temperature of the order of 180 ° C and applied hot to around 150 ° C.
  • These mixes are obtained by mixing dried aggregates and heated with bitumen and kneading the assembly so as to obtain a homogeneous mixture.
  • These mixes are usually applied to the pavement using a paver that spreads the asphalt over the pavement in a regular layer while maintaining its temperature. Following, compactors are used to compact the coating before cooling. Alternatively, the hot mix can be applied to the road manually before being compacted.
  • the area of the cut-off coating is removed as coating fragments which are treated as waste. According to a revaluation cycle, this waste is crushed and used as aggregate for the foundation of a roadway or a railway for example.
  • a cold mix This mix is produced and applied at room temperature. It is obtained by mixing aggregates and a cold bituminous emulsion.
  • This procedure for repair does not provide a durable repair.
  • connection area the material already present on the road and that reported are not intimately linked so that there is no seal. Therefore, the connection area allows water infiltration which during periods of frost deteriorate the repair.
  • the absence of a mechanical connection between the repair and the rest of the roadway leads to a rapid deterioration of the latter because of the stresses generated during the rolling on the roadway.
  • one solution is to backfill the area to be repaired with a hot mix, to heat a larger area, including the area to be repaired, so as to soften the asphalt already present on the roadway and that reported for repair in order to obtain a solid bond between these two mixes limiting the risks of infiltration.
  • an electromagnetic source such as a microwave-type wave source, as mentioned in the document JP19880001553 .
  • the present invention aims to overcome the disadvantages of the prior art by proposing a more economical method of repairing a bituminous coating.
  • the subject of the invention is a process for repairing a bituminous coating comprising a hollow to be repaired at its surface, said coating comprising aggregates bound by a bituminous substance, said method consisting in bringing a bituminous mix into the hollow, to heat a repair zone which comprises the hollow filled by the reported mix and the peripheral zone of the coating disposed around the hollow and to compact the reported mix, characterized in that it consists in using a cold crumbled mix derived from the production of hot mix.
  • bituminous coating 10 hot mix asphalt including a roadway.
  • the invention is not limited to the repair of roadways and can be applied to all asphalt based coatings such as sidewalk coatings.
  • the coating used to produce the coating is obtained by mixing dried aggregates and heated with bitumen and kneading the assembly so as to obtain a homogeneous mixture.
  • the coating comprises aggregates 12 bound by a bituminous substance 14.
  • FIG. 1A there is shown a recess 16 at the surface of the coating 10. This hollow may result from a wear of the coating 10 or a voluntary action such as a cut due to roadworks.
  • the hollow 16 is re-opened with a cold crumbled mix 18 and then a repair zone 20 is heated which comprises the recess 16 filled with the cold crumbled mix 18 and the peripheral zone of the coating disposed around the recess 16. heating makes it possible to soften the bituminous substance 14 of the coating of the coating 10 and that of the crumbled mix 18 added to the hollow. Before cooling, the crumbled mix 18 is compacted. Because of the compaction and the softening of the bituminous substance on either side of the boundary 22 delimiting the hollow 16, the granulates of the crumbled mix are perfectly linked to each other thanks to the bituminous substance. It is the same aggregates arranged on both sides of the border 22 which are linked together through the bituminous substance. Thus, a substantially identical structure is obtained on both sides of the boundary 22.
  • the mix used to fill the hollow 16 does not come from crushed or crushed mixes but crumbled mixes.
  • This type of asphalt mix comprises aggregates, all faces of which are coated with bitumen, in contrast to ground or crushed mixes which comprise aggregates with uncoated faces of bitumen.
  • the heat flux per unit area is greater than or equal to 20 kW / m 2 .
  • the crumbled mixes come from the production of hot mix asphalt and more particularly from the recovery of hardened and cold hot mix asphalt waste such as waste from a deconstructed roadway, waste from a power plant. coating or waste from the cutting of a coating during roadwork for example.
  • the invention makes it possible to obtain a more homogeneous rendering after the repair.
  • the granulometry of the crumbled mix 18 must be less than or equal to 20 mm. This granulometry makes it possible to optimize the heating time, by reducing it.
  • particles smaller than 1 mm should be removed from the crumbled mix 18 in order to reduce the heating time.
  • At least one additive is incorporated in the crumbled mix 18 to lower the temperature required for the implementation of the mix.
  • an additive based on vegetable oil Addition of additive can be done on site. The crumbled mix 18 and the additive are kneaded to promote its action.
  • binder such as a bituminous material.
  • the addition of binder can be done on site.
  • the crumbled mix and the binder are kneaded in order to homogenize the mixture.
  • This jaw crusher 24 comprises a fixed jaw 26 and a movable jaw 28. These two jaws 26 and 28 are arranged between two vertical plates for channeling the mix to crumble between the two jaws 26 and 28. They are preferably surmounted by a hopper for feeding the two jaws in asphalt to crumble.
  • the fixed jaw 26 is in the form of a plate connected to a frame, substantially vertical with possibly grooves and / or vertical grooves.
  • the movable jaw 28 is animated with a complex movement and tends to move away from and approach the fixed jaw 26.
  • the movable jaw 28 is presented the shape of a plate possibly with grooves and / or vertical grooves. This plate is inclined relative to the vertical, its lower edge being closer to the fixed jaw 26 than its upper edge.
  • its upper edge is connected to an eccentric adapted to rotate about an axis parallel to the upper edge while its lower edge is connected to an actuator susceptible in the manner of a cylinder for printing on the movable jaw a translational movement combined with a rotational movement of the eccentric.
  • the stroke of the movable jaw 28 is adjustable in order to adjust the particle size.
  • the mix is calibrated in order to adjust the particle size.
  • fine particles smaller than 1 mm are removed and elements greater than 20 mm are crumbled again.
  • This cold crumbled mix can be stored before use, unlike hot mix asphalt.
  • the hollow 16 to be repaired is prepared.
  • the trough is cleaned to loosen the crumbling elements. Its periphery can be possibly cut.
  • the amount of the crumbled mixture deposited in the hollow 16 depends on the volume of the latter. This quantity of material takes into account the compacting operation subsequent to the heating phase.
  • a heating device 30 is used as illustrated in FIGS. Figures 4A and 4B .
  • This heating device comprises a mobile carriage 32 supporting on the one hand an enclosure 34 in which are arranged heating means 36, and on the other hand, control means 38 of the heating means.
  • the mobile carriage 32 is in the form of a welded frame. It comprises a rear part 40 similar to a handling devil with two uprights and two wheels in the lower part, a front part in the form of a U-shaped frame 42 whose parallel sides are connected to the rear part 40 and whose side front can be supported by one or more swivel wheels 44.
  • the control means 38 are in the form of a desk fixed between the uprights of the mobile carriage 32.
  • the enclosure 34 comprises an upper wall 46 (horizontal) and at least one side wall 48.
  • the enclosure has a parallelepipedal shape and comprises four side walls.
  • the enclosure has internal dimensions of the order of 0.5 m for the width and 0.7 m for the length, or approximately a heating surface of 0.35 m 2 .
  • the enclosure 34 is movable relative to the carriage 32 between a high position, as illustrated in FIG. Figure 4A , in which the lower peripheral edge of the enclosure is spaced from the coating and the heating means are in the idle state and a low position, as shown in FIG. Figure 4B in which the lower peripheral edge of the enclosure rests on the coating and the heating means can be in the active state.
  • the frame 42 supports vertical slides 50 along which the enclosure 34 can slide. Other ways can be used to ensure the translation of the enclosure relative to the chassis.
  • a control lever 52 is pivotally mounted about a horizontal axis 54 integral with the carriage. Its front end is connected via a link 56 to the enclosure 34 while its other end comprises a handle or pedal to raise or lower the enclosure.
  • the lower peripheral edge of the enclosure comprises a flap 58 which improves the seal between the enclosure and the coating.
  • the heating means 36 comprise a plurality of electrical resistances disposed in the enclosure 34, under the upper wall 46 which are uniformly distributed over the entire surface covered by the enclosure.
  • the heating device comprises eight electrical resistors connected in parallel.
  • the heating means 36 are connected to a power supply according to the power required.
  • the heating means 36 have a power of the order of 8 kW.
  • the control means 38 comprise means for controlling the change of state of the heating means 36, means for regulating the temperature in the chamber so that the temperature of the coating does not exceed a certain temperature of about 220 ° C. beyond which the particular characteristics of the bitumen can be altered. It may include a timer to control the heating time of the mix.
  • the control means 38 comprise a preheating function that heats the chamber before use.
  • control means 38 may comprise means for transmitting information remotely, such as operating ratios.
  • the invention is not limited to the heating device described above.
  • the power of the heating means, the dimensions of the enclosure, the architecture of the carriage among others can be modified.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Repair (AREA)
  • Road Paving Structures (AREA)
EP12306269.7A 2011-10-19 2012-10-15 Reparaturverfahren einer Bitumenschicht Withdrawn EP2584094A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1159455A FR2981669B1 (fr) 2011-10-19 2011-10-19 Procede de reparation d'un revetement bitumineux

Publications (1)

Publication Number Publication Date
EP2584094A1 true EP2584094A1 (de) 2013-04-24

Family

ID=47071203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12306269.7A Withdrawn EP2584094A1 (de) 2011-10-19 2012-10-15 Reparaturverfahren einer Bitumenschicht

Country Status (2)

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EP (1) EP2584094A1 (de)
FR (1) FR2981669B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110468671A (zh) * 2019-08-30 2019-11-19 山东友一机械科技有限公司 沥青路面养护车自携式加热装置
CN111733676A (zh) * 2020-07-10 2020-10-02 何大安 一种沥青填坑道路施工机器人装置
CN112982120A (zh) * 2021-03-04 2021-06-18 朱亮 一种便于大范围转移的沥青路面修理装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR880001553B1 (ko) 1981-07-23 1988-08-20 글렌.에이취 브르스트 제어된 ram 신호처리기
WO2006003466A2 (en) * 2004-07-07 2006-01-12 Asi Solutions Plc System for repairing bituminous wearing courses
DE102006026529A1 (de) * 2006-06-06 2007-12-13 Rupprecht, Richard, 91207 Lauf Fahrbares Gerät mit Asphaltflächenheizer, Walze, Igel-Fräse, Fugeneindrückrad zur Fugenherstellung oder-Reparatur
WO2010121579A2 (en) * 2009-04-21 2010-10-28 Kotrbaty V.M.Z. Spol. S R.O. A method and a device for repairing potholes in asphalt roads

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR880001553B1 (ko) 1981-07-23 1988-08-20 글렌.에이취 브르스트 제어된 ram 신호처리기
WO2006003466A2 (en) * 2004-07-07 2006-01-12 Asi Solutions Plc System for repairing bituminous wearing courses
DE102006026529A1 (de) * 2006-06-06 2007-12-13 Rupprecht, Richard, 91207 Lauf Fahrbares Gerät mit Asphaltflächenheizer, Walze, Igel-Fräse, Fugeneindrückrad zur Fugenherstellung oder-Reparatur
WO2010121579A2 (en) * 2009-04-21 2010-10-28 Kotrbaty V.M.Z. Spol. S R.O. A method and a device for repairing potholes in asphalt roads

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110468671A (zh) * 2019-08-30 2019-11-19 山东友一机械科技有限公司 沥青路面养护车自携式加热装置
CN111733676A (zh) * 2020-07-10 2020-10-02 何大安 一种沥青填坑道路施工机器人装置
CN112982120A (zh) * 2021-03-04 2021-06-18 朱亮 一种便于大范围转移的沥青路面修理装置

Also Published As

Publication number Publication date
FR2981669B1 (fr) 2016-02-05
FR2981669A1 (fr) 2013-04-26

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