EP0158560A1 - Verfahren zur Erneuerung von Fahrbahnen - Google Patents

Verfahren zur Erneuerung von Fahrbahnen Download PDF

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Publication number
EP0158560A1
EP0158560A1 EP85400578A EP85400578A EP0158560A1 EP 0158560 A1 EP0158560 A1 EP 0158560A1 EP 85400578 A EP85400578 A EP 85400578A EP 85400578 A EP85400578 A EP 85400578A EP 0158560 A1 EP0158560 A1 EP 0158560A1
Authority
EP
European Patent Office
Prior art keywords
aggregates
crushed material
roadway
old
binder
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.)
Granted
Application number
EP85400578A
Other languages
English (en)
French (fr)
Other versions
EP0158560B1 (de
Inventor
Camille Bouchu
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.)
Entreprise Razel Freres SA
Original Assignee
Entreprise Razel Freres SA
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 Entreprise Razel Freres SA filed Critical Entreprise Razel Freres SA
Priority to AT85400578T priority Critical patent/ATE27719T1/de
Publication of EP0158560A1 publication Critical patent/EP0158560A1/de
Application granted granted Critical
Publication of EP0158560B1 publication Critical patent/EP0158560B1/de
Expired legal-status Critical Current

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
    • 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
    • E01C3/00—Foundations for pavings
    • E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
    • 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
    • E01C3/00—Foundations for pavings
    • E01C3/04—Foundations produced by soil stabilisation

Definitions

  • the present invention relates to a process for renovating roadways, in particular those of national and departmental roads.
  • the base layer can be either of bituminous concrete, or in gravel (mixture of sand and gravel) treated with hydraulic binders, both of a grain size greater than that of the concrete of the wearing course, and the base layer is generally in gravel untreated.
  • the floor is raised, which can be annoying in cities and towns and cannot be done indefinitely.
  • the second solution it is expensive, since it consists in removing and taking to the landfill the old materials and bringing and installing new materials.
  • Another process consists of regenerating the wearing course in the following way: the road surface is planed down to the thickness of the bituminous material, a mixture of bitumen and stones is recovered, it is regenerated in the factory or on the road by thermoregeneration and we re-use it to form a new wearing course. This process only renovates this surface layer.
  • an apparatus which separates the asphalt or asphalt / concrete wearing course from a pavement, which sprays the sampled material in situ while mixing it with a stabilizing binder (lime, cement or emulsified asphalt) and which discharges the material thus treated on the site of the material removed to form a new wearing course, possibly after application on the surface of a new layer of asphalt or cement (column 1, line 30 to column 2, line 2 ).
  • a stabilizing binder limestone, cement or emulsified asphalt
  • This method also only renovates the surface layer.
  • the apparatus used which operates by disaggregation and milling, does not provide a crushed material and does not allow either to control the particle size of the treated material or to weigh this material in order to add therein a dosed amount of the binder.
  • An article by Harold J. Halm (Transportation Research News - USA - N ° 89 - July / August 1980 - pp. 6 - 10) concerns the recycling of concrete, and in particular the reuse of the upper layer of concrete in pavement cement , that is to say of the noblest part of the roadways, for manufacturing aggregates intended to constitute the foundation layer and / or base and possibly the top layer of a new classic pavement (page 6, first and fifth paragraphs). It is still only the upper layer which is reused and it is not treated in situ.
  • the recovered materials are transported to a crushing plant, and from there to a concrete plant, supplying the aggregates, which will be transported to the on-site processing machine (sliding formwork machine) at the location of a new roadway to be built.
  • Mobile machines are fitted with wheels or tracks.
  • This operation consists in scarifying the roadway with a usual scarifier or ripper over the width and depth provided for reprocessing.
  • the goal is to obtain a decohesive material, sufficiently loose to allow it to be loaded into the recovery machine.
  • a pavement is treated over half its width first and the other half afterwards.
  • the blocks obtained by scarification, and particularly those coming from the surface bituminous layers, will have a sufficiently small dimension to be admitted into the crusher, this dimension being able to go, according to the crusher, up to 700 mm for thick products and even 1000 mm for flat products.
  • This operation is carried out with mobile machines (such as loaders, lifting belts, armored), which are provided with penetration and collection means for the removal of the dislocated material and means for transfer to the crusher of the material removed.
  • a percussion or jaw crusher is used, of a type such that it can absorb 700mm blocks up to 1000mm for flat products. It is adjusted to make a crushed piece passing through 40 mm mesh.
  • Crushed granulometry 0 to 40 mm made from recycled products is corrected, if necessary, by an addition of aggregates (fillers, sand, gravel, stones). This operation is fixed after tests to determine the nature and percentage of the filler materials. This percentage is generally between 0 and 15% by weight relative to the crushed material, but, if necessary, this percentage can reach and exceed 100%.
  • the corrective material can be deposited in beads on the dislocated material in front of the mobile pickup, transfer and crushing machines, in which case it is mixed, during the crushing, with the dislocated material, or be leveled by means of a gravel spreader, downstream of the crusher, on the crushed material, spilled and spread on the ground; materials are then leveled using a grader and kneading using a pulp-mixer to incorporate the correcting aggregates.
  • the addition rate is adjusted corrective aggregates, by means of known distribution and spreading machines such as a gravel truck provided with a metering device.
  • knowing the hourly throughput of the crusher makes it possible to adjust the throughput of the binder and of the water to be added.
  • a known device such as an integrating scale placed after the outlet of the crusher
  • the silo containing the binder and the water tank are mounted on the chassis of the mixer and are provided with metering pumps.
  • known machines are used such as a powder spreader with adjustable flow rate for the binder and a sprinkler with adjustable flow rate for water.
  • the material After fine adjustment by means of a flatness grader in the transverse direction of the deposited layer, the material is compacted into a single layer.
  • the choice of compactor depends on the properties of the material treated and the thickness expected.
  • 45 cm layers can be used with a tire compactor of 50,000 N per wheel and a vibrating compactor of class V 5 (load per centimeter of generator of the vibrating cylinder greater than 450 N), N denoting the newton.
  • the wearing course formed on the compacted material can be made of bituminous concrete or be a surface coating (gravel deposited on a bitumen film).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Solid Wastes (AREA)
  • Road Paving Structures (AREA)
  • Road Signs Or Road Markings (AREA)
  • Road Repair (AREA)
EP85400578A 1984-03-30 1985-03-26 Verfahren zur Erneuerung von Fahrbahnen Expired EP0158560B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400578T ATE27719T1 (de) 1984-03-30 1985-03-26 Verfahren zur erneuerung von fahrbahnen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8405071 1984-03-30
FR8405071A FR2562109B1 (fr) 1984-03-30 1984-03-30 Procede de renovation des chaussees

Publications (2)

Publication Number Publication Date
EP0158560A1 true EP0158560A1 (de) 1985-10-16
EP0158560B1 EP0158560B1 (de) 1987-06-10

Family

ID=9302679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400578A Expired EP0158560B1 (de) 1984-03-30 1985-03-26 Verfahren zur Erneuerung von Fahrbahnen

Country Status (4)

Country Link
EP (1) EP0158560B1 (de)
AT (1) ATE27719T1 (de)
DE (1) DE3560242D1 (de)
FR (1) FR2562109B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521993A1 (de) * 1990-03-30 1993-01-13 Oconnor Patrick L Fahrbahn- und unterbauwiederverwertungsverfahren und -vorrichtung.
EP0597176A1 (de) * 1992-11-08 1994-05-18 WIRTGEN GmbH Verfahren und Vorrichtung zur Sanierung beschädigter Fahrbahnen
WO2008025343A3 (de) * 2006-08-31 2008-09-25 Hkc Hackmann & Kollath Ingcons Fahrbahn für luft- und strassenfahrzeuge und verfahren zur sanierung einer fahrbahn, vorzugsweise aus beton
GB2443191B (en) * 2006-10-27 2011-08-31 Clemmens O Keefe Llp Recycling of waste soil
WO2017194873A1 (fr) 2016-05-10 2017-11-16 Colas Dispositif pour le recyclage in situ de materiaux constitutifs d'une chaussée de circulation et concasseur pour fraisats de chaussée de circulation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732023A (en) * 1969-03-11 1973-05-08 Metradon Ass Soil stabilization apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732023A (en) * 1969-03-11 1973-05-08 Metradon Ass Soil stabilization apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
WEGEN, vol. 55, no. 1, janvier 1981, page 782-34, Boskoop, NL; H.J. HALM: "Hergebruik" *
WEGEN, vol. 55, no. 7, juillet 1981, pages 788-205 - 788-211, Boskoop, NL; CH. F. HENDRIKS: "Hergebruik van wegverhardingsmateriaal in Nederland" *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521993A1 (de) * 1990-03-30 1993-01-13 Oconnor Patrick L Fahrbahn- und unterbauwiederverwertungsverfahren und -vorrichtung.
EP0521993A4 (en) * 1990-03-30 1993-07-21 Patrick L. O'connor Pavement and base recycle method and apparatus
EP0597176A1 (de) * 1992-11-08 1994-05-18 WIRTGEN GmbH Verfahren und Vorrichtung zur Sanierung beschädigter Fahrbahnen
AU666543B2 (en) * 1992-11-08 1996-02-15 Wirtgen Gesellschaft Mit Beschrankter Haftung Process and apparatus for the repair of damaged roads
US5741085A (en) * 1992-11-08 1998-04-21 Wirtgen; Reinhard Process and apparatus for the repair of damaged roads
WO2008025343A3 (de) * 2006-08-31 2008-09-25 Hkc Hackmann & Kollath Ingcons Fahrbahn für luft- und strassenfahrzeuge und verfahren zur sanierung einer fahrbahn, vorzugsweise aus beton
US8021076B2 (en) 2006-08-31 2011-09-20 hkc Ilackmann + Kollath Ingenieur-Consult GmbH Runway for aircraft and roadway for vehicles and method of renewing a runway or roadway
GB2443191B (en) * 2006-10-27 2011-08-31 Clemmens O Keefe Llp Recycling of waste soil
WO2017194873A1 (fr) 2016-05-10 2017-11-16 Colas Dispositif pour le recyclage in situ de materiaux constitutifs d'une chaussée de circulation et concasseur pour fraisats de chaussée de circulation
FR3051202A1 (fr) * 2016-05-10 2017-11-17 Colas Sa Dispositif pour le recyclage in situ de materiaux d'une chaussee de circulation et concasseur specialement adapte

Also Published As

Publication number Publication date
FR2562109A1 (fr) 1985-10-04
FR2562109B1 (fr) 1986-09-26
ATE27719T1 (de) 1987-06-15
EP0158560B1 (de) 1987-06-10
DE3560242D1 (en) 1987-07-16

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