EP0081194B1 - Verfahren zum Instandsetzen einer bituminösen Fahrbahndeckschicht - Google Patents

Verfahren zum Instandsetzen einer bituminösen Fahrbahndeckschicht Download PDF

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Publication number
EP0081194B1
EP0081194B1 EP82111101A EP82111101A EP0081194B1 EP 0081194 B1 EP0081194 B1 EP 0081194B1 EP 82111101 A EP82111101 A EP 82111101A EP 82111101 A EP82111101 A EP 82111101A EP 0081194 B1 EP0081194 B1 EP 0081194B1
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EP
European Patent Office
Prior art keywords
mixing
break
tools
servicing
machine
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Expired
Application number
EP82111101A
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German (de)
English (en)
French (fr)
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EP0081194A1 (de
Inventor
Walter Schölkopf
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to AT82111101T priority Critical patent/ATE19418T1/de
Publication of EP0081194A1 publication Critical patent/EP0081194A1/de
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    • 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

Definitions

  • the invention relates to a method for repairing a bituminous road surface layer, in which - during a substantially continuous feed of a machine required for its exercise - the surface layer heats, loosens it to a demolition material, then occasionally new pavement material is fed to the demolition material remaining on the subgrade, this is leveled together with the opening and compacted again, as well as a suitable device for carrying out the method.
  • the object of this method is to ensure a reduction in the expenditure on mechanical engineering for sufficient heating of the roadway.
  • the solution provides that the surface layer of the roadway is first preheated to a comparatively large distance in front of the tear point to just below the processing temperature and then heated to the final processing temperature directly in front of the tear point, and that, according to claim 3, behind the tear point, before Distribution and installation of the demolition material, this new ceiling material is fed.
  • Section 4.3 relates to the process protected by the applicant according to German patent 25 54 710. This process provides that the existing cover layer is first re-profiled after the break-up and immediately afterwards a layer of additional mix is applied hot and together with the newly profiled old top layer is compacted in one operation, without prior mixing of break-up and new goods.
  • German Patent 24 46 579 indicates a procedure similar to the procedure in accordance with section 4.4 of the magazine drawn.
  • Binder is added to the break-up to be recorded in a separate mobile drum dryer, whereby the drum dryer described would be called a drum mixer according to today's terminology.
  • the procedure outlined here includes a method for refreshing an asphalt road surface, for example in the sense of introductory description of the object of the application, and additionally sees the mixture of the loosened surface material with liquid asphalt and / or refreshment - or rejuvenating agent, the resulting mixture being applied to the street bed.
  • freshener is also not common here, although it can be assumed that it is low-boiling hydrocarbons that can reduce the penetration of the binder content or additives to improve the adhesive strength.
  • mixed material is additionally added in the direction of arrow 38, this addition basically speaking against the aim stated in this document, namely to be able to do without such a task in many cases (cf. page 5, last paragraph).
  • the mixing performance of the mixing screws shown in FIG. 2 is to be viewed critically. With the arrangement specified here, basically only a revolutionary transverse transport takes place, but not a real mixture, since a reversal of the transverse transport only takes place with advancing feed.
  • the material to be broken is conveyed towards the center by two coaxially directed screws, so that the sprayers arranged behind in the direction of feed spray into a well-free space.
  • the break-up led to the center is additionally fed fresh mix by a belt conveyor and the mix is "mixed" by a single-shaft mixer, which is essentially axially discharged in both directions and has paddle blades, and then later by subsequent screws, which are also coaxially assigned to each other Screed to be spread over the pave width.
  • the asphalt mixture has to be "emaciated" with regard to its binder content and mortar content for a particularly long time by mixing with the demolition in order to be able to convert this material together with the demolition material into a uniform mixture.
  • the break-up material heated to the mixing temperature and loosened by means of loosening tools, consists of several mixing tools that eject, intermeshing, and are arranged in a mixing plane that is roughly parallel to the formation, moving back and forth across the repair width or rigidly in this area uniformly mixed, in the mixture in the mixing plane within the mixing area captured by the mixing tools, to be added binder and / or aggregates of predetermined grain size, and that at the same time the screed - due to the feed of the machine - towards the newly mixed, in almost uniform layer thickness present good, moved.
  • this recycling-in-place process avoids the preparation of additional mixes in a mixing system to be provided externally to the construction site area and the separate transport of the mixes to the installation site.
  • the loosened demolition material heated up to the mixing temperature by the plastification is uniformly mixed by the intermixing mixing tools which eject parallel to the formation, whereby the demolition material forming a mixing plane is repeatedly exchanged in the surface of this plane pointing upwards parallel to the formation, so that a large surface presentation of the granular breakout material for the absorption or mixing of the additional components of the binder and / or the additives.
  • the binder is also added at the usual mixing temperature, while it can be decided with the additives, depending on the amount to be added, whether they should be heated additionally.
  • the addition of the binder takes place in the part of the mixing area immediately following the loosening tools — in some cases at several points — to the batch.
  • the choice of the application area enables the binder to be mixed in evenly over the entire depth of the mixing area defined by the arrangement and design of the mixing tools.
  • the addition of the binding agent follows the movement of these mixing tools in the case of reciprocating mixing tools or, in the case of rigidly arranged mixing tools, takes place in a reciprocating manner across the mixing region.
  • a device which is expedient for carrying out the method provides that the mixing tools arranged in the machine are provided with star-shaped mixing arms which are arranged parallel to the formation.
  • Such a design which provides for a uniform radial ejection of the material starting from a center, supports the interlocking effect of the mixing tools and the uniform multiplication of the material.
  • the depth setting of the mixing tools is controlled by the depth setting of the loosening tools, so that there is a uniform distance between the level of the base of the break and the mixing tools.
  • the screed connected to the machine is assigned a cross-distributor, which is reciprocally moved and reciprocally moved, on the feed side.
  • FIGS. 1 and 2 indicate the feed or working direction.
  • the machine for repair is based on a partially modified paver in its basic device 1, with the use of a wheel paver being provided in the case of this example.
  • a tracked paver is also suitable as the basic device in the same way.
  • a front carriage 3 ′ carrying the gas tank 3 is connected to the device front pointing in the feed direction.
  • the gas tank 3 is used to supply energy to the multipart replastification device 2 which is articulated to the front end 3 '.
  • the basic device 1 is further assigned the binder tank 6 with the binder metering 7 and the binder feed device 8 and the leveling bars 12 are articulated.
  • the supports of the loosening tools 4 and the movable mixing device 5 are arranged under the leveling bars 12. Furthermore, a rake-shaped transverse distributor 10 and the screed 11 are provided on the leveling beam 12.
  • the movable mixing device 5 is connected to the feed device 8 for the hot liquid binder 23.
  • a feed chute 9 opens into the space laterally delimited by the formation downwards and the two leveling beams 12 for occasionally required absorption of the mineral additives 24, which supplement the batch 22 in accordance with the prescribed recipe.
  • the heat is applied in a graded setting.
  • the loosening tools 4 penetrate the cover layer 20 at a preset depth, lift it off and convert it into agglomerates of different sizes into the break-up material 21.
  • the mixing tools 5 even out the distribution of the agglomerates of different sizes over the repair width and thus convert the breakup material 21 into a uniform batch 22.
  • the binding agent 23, which is to be supplemented according to the recipe, and the mineral additives in the required amount are added to the mixture 22 and further processed by the mixing tools to a quasi-homogeneous mixture, which is a new mixture in a layer of almost uniform thickness on the subgrade distributed.
  • This layer is further evened out by the cross distributor 10, which is supplemented in the manner of a computation, and then passes under the screed 11 (vibrating screed).

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)
  • Road Paving Machines (AREA)
EP82111101A 1981-12-03 1982-12-01 Verfahren zum Instandsetzen einer bituminösen Fahrbahndeckschicht Expired EP0081194B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82111101T ATE19418T1 (de) 1981-12-03 1982-12-01 Verfahren zum instandsetzen einer bituminoesen fahrbahndeckschicht.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813147834 DE3147834A1 (de) 1981-12-03 1981-12-03 Verfahren zum instandsetzen einer bituminoesen fahrbahndeckschicht, bei der kontinuierlich das deckschichtmaterial erwaermt, gelockert, eingeebnet und wieder neu verdichtet wird
DE3147834 1981-12-03

Publications (2)

Publication Number Publication Date
EP0081194A1 EP0081194A1 (de) 1983-06-15
EP0081194B1 true EP0081194B1 (de) 1986-04-23

Family

ID=6147785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111101A Expired EP0081194B1 (de) 1981-12-03 1982-12-01 Verfahren zum Instandsetzen einer bituminösen Fahrbahndeckschicht

Country Status (3)

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EP (1) EP0081194B1 (enrdf_load_stackoverflow)
AT (1) ATE19418T1 (enrdf_load_stackoverflow)
DE (1) DE3147834A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192700A (zh) * 2016-07-12 2016-12-07 河北森远路桥工程有限公司 一种低能耗的沥青混凝土路面就地热再生方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1181498B (it) * 1984-01-13 1987-09-30 Soave Asfalti Spa Procedimento di rigenerazione e riciclaggio in sito a caldo delle pavimentazioni stradali usurate e impianto per attuare detto procedimento
NO841436L (no) * 1984-04-11 1985-10-14 Nodest Vei As Fremgangsmaate og anordning for utbedring av baerelag for veibelegg.
SU1313938A1 (ru) * 1984-10-08 1987-05-30 Государственный Дорожный Проектно-Изыскательский И Научно-Исследовательский Институт "Гипродорнии" Устройство дл подачи восстановител при регенерации асфальтобетона дорожных покрытий
GB2175032B (en) * 1985-04-25 1988-02-17 Fibredec Ltd A method of resurfacing a road
US4850740A (en) * 1988-06-02 1989-07-25 Wiley Patrick C Method and apparatus for preparing asphaltic pavement for repaving
US6380284B1 (en) * 1997-05-29 2002-04-30 Emile Lopez Method for continuous production of modified bituminous materials
DE102005033199A1 (de) * 2005-07-13 2007-01-25 Richard Rupprecht Fahrbare Vorrichtung zur Asphalt- und Fugenreparatur und Entfernung von Verunreinigungen von Oberflächen
US9506205B1 (en) 2015-06-10 2016-11-29 Caterpillar Paving Products Inc. Rotary mixer with a front-mounted additive distributor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2757944A1 (de) * 1977-12-24 1979-09-27 Voegele Ag J Verfahren und vorrichtung zur erneuerung von fahrbahndecken

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7602098U1 (enrdf_load_stackoverflow) * 1900-01-01 Joseph Voegele Ag, 6800 Mannheim
DE1168941B (de) * 1960-04-11 1964-04-30 Gerhard Lackner Fahrbare Einrichtung zum Herstellen von bituminoes gebundenen Oberflaechen bei Macadamstrassen
DE2446579C3 (de) * 1974-09-30 1980-03-27 Walter 7024 Filderlinden Schoelkopf Verfahren zur Wiederverwendung von bituminösem Abtragsgut
DE2554710C3 (de) * 1975-12-05 1978-11-23 Walter 7024 Filderlinden Schoelkopf Verfahren zum Instandsetzen einer bituminösen Fahrbahndeckschicht und Bauzug zur Durchführung des Verfahrens
CA1081516A (en) * 1975-12-31 1980-07-15 Earl F. Cutler Asphalt pavement recycling apparatus
CA1117339A (en) * 1977-01-03 1982-02-02 Morris R. Jeppson Microwave method and apparatus for reprocessing pavements
DE2850344A1 (de) * 1978-11-20 1980-05-22 Reinhard Wirtgen Verfahren und vorrichtung zum abtragen und neubeschichten von strassendecken

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2757944A1 (de) * 1977-12-24 1979-09-27 Voegele Ag J Verfahren und vorrichtung zur erneuerung von fahrbahndecken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192700A (zh) * 2016-07-12 2016-12-07 河北森远路桥工程有限公司 一种低能耗的沥青混凝土路面就地热再生方法

Also Published As

Publication number Publication date
EP0081194A1 (de) 1983-06-15
DE3147834A1 (de) 1983-06-16
DE3147834C2 (enrdf_load_stackoverflow) 1987-09-10
ATE19418T1 (de) 1986-05-15

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