EP0750070A1 - Finisher and process for applying surface layers - Google Patents

Finisher and process for applying surface layers Download PDF

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Publication number
EP0750070A1
EP0750070A1 EP96106844A EP96106844A EP0750070A1 EP 0750070 A1 EP0750070 A1 EP 0750070A1 EP 96106844 A EP96106844 A EP 96106844A EP 96106844 A EP96106844 A EP 96106844A EP 0750070 A1 EP0750070 A1 EP 0750070A1
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EP
European Patent Office
Prior art keywords
screed
compression
concrete
chassis
covering layer
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Granted
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EP96106844A
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German (de)
French (fr)
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EP0750070B1 (en
Inventor
Alfred Dr.-Ing. Ulrich
Erich Resch
Günter Zegowitz
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Joseph Voegele AG
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Joseph Voegele AG
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Publication of EP0750070A1 publication Critical patent/EP0750070A1/en
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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
    • 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
    • E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E01C19/4833—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means
    • E01C19/4853—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements
    • 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
    • E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • E01C2301/16—Laterally slidable screeds

Definitions

  • the invention relates to a paver according to the preamble of claim 1 and a method according to claim 15.
  • the first installation device is a scraper towed behind a cross distributor and paving the first paving layer at the correct height.
  • An installation device towed behind a further cross distributor is designed as a screed with a compaction system, which installs and compresses the second covering layer and also compresses the first covering layer through the second covering layer.
  • the compression that can be achieved is unsatisfactory. With high demands on the covering, expensive re-rolling is necessary.
  • a road paver known from DE-A1-23 14 812 is designed in the manner of a slip-shell paver with a square frame carried by individually driven crawler tracks, in which two screeds are arranged one behind the other and offset transversely.
  • This paver is not suitable for paving multi-layer concrete layers, since both screeds work on the same paving layer and the double arrangement of the screeds only serves to adjust the pave width.
  • Multi-layer concrete layers are increasingly being produced instead of black ceilings.
  • Heavy traffic in particular, puts a strain on road construction with the following factors: high static and dynamic wheel forces, tire contact patches, acceleration and deceleration, driving speed, traffic density and the resulting climatic influences.
  • the road superstructure usually consists of one or more base layers and the road surface. Its thickness depends on the traffic load, the climatic conditions and the sensitivity to frost.
  • the base courses have the task of transferring the traffic loads from the road surface to the subsoil or the substructure without deforming the subgrade.
  • Base layers consist, for example, of unbound or bound mineral mixtures. Bituminous or hydraulic binders are used for bound base layers. Unbound base layers are the frost protection layer, the ballast base layer and the gravel base layer.
  • the frost protection layer is the first base layer of the superstructure and prevents capillary water from entering the superstructure.
  • Bound base layers include hydraulically bound base layers (HGT), concrete base layers or bituminous base layers.
  • a concrete base layer is used on subsoil sensitive to subsidence. It consists, for example, of concrete B 15 or B 25 according to DIN 1045 with an installation thickness of approx. 15 cm and has so far been manufactured with a conventional slipform paver or a rail-guided concrete paver. This layer must be provided with transverse and longitudinal joints and protected from drying out after installation.
  • Concrete ceilings are mainly used in heavily used traffic areas, such as highways, airfields and commercial routes. They are insensitive to temperature, have a long service life and are bright, easy to grip and wear-resistant.
  • slipform pavers can only compact very easily compactable concrete with a w / z value> 0.4, which, however, cannot be walked on immediately.
  • the use of a paver intended for bituminous road construction is cheaper.
  • rolled concrete (RCC) can be installed, ie a heterogeneous mass made of cement concrete, which, however, has to be compacted with vibration and rubber wheel rollers. Because of the low mechanical effort, this is essential compared to conventional concrete paving with slipform pavers Cost savings possible.
  • the best solution for paving concrete is the so-called PCC technology, which can be used with a paver with a high compaction screed (DE-C-31 14 049), whereby earth-moist and difficult-to-compact concrete with a composition of grain sizes from 0 - 2 (Sand), 2 - 8 (gravel) and grain sizes 8 - 22 are processed from broken material and highly compressed.
  • the result is a concrete that can be walked on immediately and without permanent footprints thanks to the compacting effect of the high compaction screed, with high stability and a processor density of 96% at a depth of 15 cm.
  • When installing ensure that the water content is optimal. It is possible to achieve a road surface that conforms to the profile without any boundary and with the greatest possible flatness.
  • drainage or whispered concrete may require a multi-layer structure with or without an adhesive bridge on a base course, whereby a sub-concrete layer can be freshly made from PCC and must be drivable with the paver. If necessary, the sub-concrete layer can also be a finished concrete road construction. With a paver with high compaction screed, however, only a single layer of paving has so far been able to be installed and compacted.
  • the technological background also includes DE-U-93 13 161, FR-A-26 97 036, EP-A-0 536 052, DE-U-93 17 124 and US-A-4 073 592.
  • the invention has for its object to provide a paver of the type mentioned, with which high-quality, multi-layer concrete ceilings can be installed, and to provide a method for producing this concrete ceiling construction.
  • the paver not only paves every covering layer to the right height, but also immediately densifies every covering layer to a high degree.
  • the concrete high compaction screed is specially tailored to the mix concrete. There is no need to re-roll the concrete ceiling structure. The quality of the concrete ceiling construction is higher than when installing with a slipform paver. Furthermore, the cost of the process carried out with this paver is significantly lower.
  • the tamper device located in front provides pre-compression and smoothing before the smoothing plate further compresses and smoothes.
  • the pressure bar finally produces the required high final compression, it being particularly important that the pressure bar is pressed with downward swelling force impulses without impact on the covering layer, so that the swelling forces act very deeply in the covering layer without grain destruction. Since the reaction forces from the threshold force upward are supported against the total mass of the screed, extraordinarily high compaction forces can be generated in the dynamic phase, in which the threshold force pulses act at a frequency above the natural frequency of the total screed mass, the value of which can be greater than the weight of the total mass of the screed. Further Information on the high compaction effect of such screeds can be found in DE-C-31 14 049, to which reference is hereby made.
  • the feature of claim 3 is particularly important because concrete is processed and pre-compacted particularly well with the reduced feed angle of the tamper device.
  • the adhesive is used to create an adhesive bridge if a special connection has to be made between the covering layers, i.e. a special adhesion between a bottom base layer (HGT) or an old concrete or bituminous layer and the first built-in layer.
  • a special connection has to be made between the covering layers, i.e. a special adhesion between a bottom base layer (HGT) or an old concrete or bituminous layer and the first built-in layer.
  • the two or more pressure bars share the high compression work of the covering layer with one another. But it is also conceivable to use a wide pressure bar with a feed angle matched to concrete.
  • more than two covering layers are installed with the same paver.
  • the design of the spray device as a spray ramp creates a spray area for the adhesive bridge that is continuous over the respective installation width.
  • the majority of the adhesive bridge is already applied in front of the undercarriage, while the recesses are only filled in behind the undercarriage. This design solves the problem of the installation space, which is usually cramped behind the chassis and in front of the first cross distributor.
  • the installation width of the concrete ceiling structure can be changed.
  • the problem is solved in a simple manner, which results when installing multi-layer concrete ceiling constructions in that the respective lower covering layer is impassable for the paver as long as it is still in a fresh state, which is, however, for the effective connection with the one lying on it Covering layer is favorable. Since all covering layers are installed with the same paver overlapping each other and each highly compacted, a very strong bond is created and is inexpensive the concrete ceiling construction completed in one go. Roughing is no longer necessary.
  • a hydraulically bonded base layer is provided as the first covering layer, which is also installed by the same paver as the subsequent concrete covering layer (s).
  • the method variant according to claim 18 is important if the substrate is an old layer of concrete or bitumen or possibly a hydraulically bound base layer.
  • a paver F according to FIG. 1 has a chassis 1 with a chassis 2 (crawler or wheel chassis) and a driver's cab 3 adjacent to a primary drive unit 4 (diesel-hydraulic or diesel-electric drive unit). At least two mix containers 5, 6 are arranged at the front on the chassis 1. An adhesive tank 7 is also provided. Each mix container 5, 6 is connected via its own conveyor section 8, 9 (conveyor belts, screws or scraper conveyors) to an area located behind the chassis 1 in the direction of travel of the paver (FIG. 1 to the left). The conveyor section 9 leads to a cross distributor 10 (distributor screw), which is arranged immediately behind the end of the chassis 1.
  • the conveyor line 8 leads to a further cross distributor 11 (distribution screw), which is arranged further back than the first cross distributor 10. If a third or even further mix container (not shown) is provided on the chassis, a further conveyor line leads from it (not shown) to an even further back in the cross distributor 12.
  • a spray device S for an adhesive is also provided on the chassis 1, a spray ramp 13 being arranged on the chassis 1 directly behind the chassis in FIG. 1. 2-4 show detailed variations of the spray device S.
  • lateral arms 14, 15 are connected to the chassis 1, each of which hauls a high-compression screed B1 and B2. If a third mix container (not shown) is provided on the chassis 1, then a further high compaction screed B3 is dragged along by means of outlines 16 indicated by broken lines.
  • the high-compression screed B1 closest to the chassis 1 paves the mix that is distributed by the cross distributor 10.
  • the high-compaction screed B2 paves the mix that is cross-distributed by the second cross-distributor 11.
  • the possibly third high compaction screed B3 paves the mixed material distributed by the cross distributor 12.
  • the high-compression screed B1 forms a first high-density screed layer C1, on which the second high-compression screed B2 paves a further, high-density paving layer C2, before the third high-compression screed B3 paves a further high-density screed layer C3.
  • Each high-compaction screed B1, B2, B3 can have a predetermined pave width and, if necessary, laterally attachable extension parts can be increased or decreased in the installation width.
  • each high-compression screed B1, B2, B3 can be designed as a so-called extending screed, the paving width of which can be varied continuously by means of at least one laterally extendable extending part (and, if appropriate, attached extension parts).
  • At least the high-compression screeds B2, B3 each carry a tamper device T located at the front with at least one tamper bar 17, which has an insertion angle ⁇ of approximately 30 ° which is matched to concrete.
  • the tamper bar 17 is moved up and down by a drive (not shown) with a selectable frequency in order to pre-compress and level the cross-distributed installation material.
  • the tamper device T is followed at least by a smoothing plate 20 on the underside, which is expediently acted upon by a vibration drive 21 and smoothes and further compresses the covering layer.
  • Adjacent to the smoothing plate 20 is at least one transverse (wider) pressure bar 18 or (as shown) preferably two transverse and immediately successive pressure bars 18 are provided, which are acted upon by threshold force drives 19 with downward threshold force pulses, the reaction forces arising from the threshold force pulses in each case Support directly on the entire mass of the high compaction screed B1, B2, B3 upwards.
  • a high compaction device V is formed in each high compaction screed B1, B2, B3, which gives the built-in covering layer C1, C2, C3 such a high compaction that re-rolling is no longer necessary.
  • an adhesive bridge H can be applied to the substrate with the spray device S.
  • three sections 13a, 13b and 13c of the spray ramp 13 of the spray device S are arranged in front of the undercarriage 2 in such a way that the areas of contact with the ground of the undercarriage 2 are left out.
  • two further sections 13d of the spray ramp S are provided, which act on the recessed areas.
  • three spray ramp sections 13a-13c are arranged behind the undercarriage 2 in such a way that the entire installation width of the high-compression screeds B1 and B2 is covered.
  • the sections 13a-13c can be adjusted transversely and relative to one another in order to adapt the width of the adhesive bridge to the installation width of the high-compression screeds B1, B2 and B3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Temperature-Responsive Valves (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Road Repair (AREA)

Abstract

The road laying plant can build up the road surface in several layers. All the working sections are high compression boards (B1-3) for the production of a covering layer (C1-3). Each rear high compression board (B1,2) is constructed as a concrete compression board, and each board has a forwardly positioned tamping unit (T) and a high compression pressure strip (18) which is subject to the action of a vibrator (V). An adhesive medium tank (7) is attached to the chassis (1) and is connected to a sprayer (S).

Description

Die Erfindung betrifft einen Deckenfertiger gemäß Oberbegriff Patentanspruch 1 sowie ein Verfahren gemäß Patentanspruch 15.The invention relates to a paver according to the preamble of claim 1 and a method according to claim 15.

Bei einem aus DE-A1-43 42 997 bekannten Deckenfertiger zum Einbauen und Verdichten zweier Asphaltschichten ist die erste Einbauvorrichtung ein hinter einem Querverteiler geschleppter Abstreifer, der die erste Einbauschicht höhengerecht einbaut. Eine hinter einem weiteren Querverteiler geschleppte Einbauvorrichtung ist als Einbaubohle mit einem Verdichtungssystem ausgebildet, die die zweite Belagschicht einbaut und verdichtet und durch die zweite Belagschicht auch die erste Belagschicht verdichtet. Die erreichbare Verdichtung ist unbefriedigend. Bei hohen Anforderungen an den Belag ist teures Nachwalzen erforderlich.In the case of a paver known from DE-A1-43 42 997 for installing and compacting two asphalt layers, the first installation device is a scraper towed behind a cross distributor and paving the first paving layer at the correct height. An installation device towed behind a further cross distributor is designed as a screed with a compaction system, which installs and compresses the second covering layer and also compresses the first covering layer through the second covering layer. The compression that can be achieved is unsatisfactory. With high demands on the covering, expensive re-rolling is necessary.

Ein aus DE-A1-23 14 812 bekannter Straßenfertiger ist nach Art eines Gleitschalenfertigers mit einem von einzeln angetriebenen Raupen-Fahrwerken getragenen Viereckrahmen ausgebildet, in dem zwei Einbaubohlen hintereinander und quer versetzt angeordnet sind. Dieser Fertiger ist nicht zum Einbauen mehrlagiger Betonschichten geeignet, da beide Einbaubohlen dieselbe Einbauschicht bearbeiten und die Doppelanordnung der Einbaubohlen nur zum Zweck der Verstellbarkeit der Einbaubreite dient.A road paver known from DE-A1-23 14 812 is designed in the manner of a slip-shell paver with a square frame carried by individually driven crawler tracks, in which two screeds are arranged one behind the other and offset transversely. This paver is not suitable for paving multi-layer concrete layers, since both screeds work on the same paving layer and the double arrangement of the screeds only serves to adjust the pave width.

Mehrlagige Betonschichten werden in zunehmendem Maße anstelle von Schwarzdecken hergestellt. Insbesondere der Schwerverkehr belastet die Straßenkonstruktion mit folgenden Faktoren: Hohe statische und dynamische Radkräfte, Reifenaufstandsflächen, Beschleunigung und Verzögerung, Fahrgeschwindigkeit, Verkehrsdichte, und dabei wirkende klimatische Einflüsse. Der Straßenoberbau besteht in der Regel aus einer oder mehreren Tragschichten und der Fahrbahndecke. Seine Dicke wird in Abhängigkeit von der Verkehrsbelastung, den klimatischen Verhältnissen und der Frostempfindlichkeit gewählt. Die Tragschichten haben die Aufgabe, die Verkehrslasten von der Fahrbahndecke in den Untergrund oder den Unterbau zu übertragen, ohne das Planum zu verformen. Tragschichten bestehen, z.B., aus ungebundenen oder gebundenen Mineralstoffgemischen. Für gebundene Tragschichten werden bituminöse oder hydraulische Bindemittel verwendet. Ungebundene Tragschichten sind die Frostschutzschicht, die Schottertragschicht und die Kiestragschicht. Die Frostschutzschicht ist die erste Tragschicht des Oberbaus und verhindert das Eindringen von Kapillarwasser in den Oberbau. Gebundene Tragschichten umfassen hydraulisch gebundene Tragschichten (HGT), Betontragschichten oder bituminöse Tragschichten. Eine Betontragschicht wird bei setzungsempfindlichem Untergrund angewendet. Sie besteht, z.B., aus Beton B 15 oder B 25 nach DIN 1045 mit einer Einbaudicke von ca. 15 cm und wird bisher mit einem üblichen Gleitschalungsfertiger oder einem schienengeführten Betondeckenfertiger hergestellt. Diese Schicht muß mit Quer- und Längsfugen versehen werden und vor der Austrocknung nach dem Einbau geschützt werden. Betondecken werden hauptsächlich bei hochbelasteten Verkehrsflächen, wie Autobahnen, Flugplätzen und Wirtschaftswegen verwendet. Sie sind temperaturunempfindlich, haben eine hohe Lebensdauer und sind hell, griffig und abriebfest. Bisher erfolgt der Einbau der Betondecke einschichtig oder mit einem Gleitschalungsfertiger in einem Arbeitsgang zweilagig mit unterschiedlich zusammengesetzten Betonmischungen. Nachteil der Gleitschalungsfertiger ist, daß sie nur sehr leicht verdichtbaren Beton mit einem w/z-Wert > 0,4 verdichten können, der jedoch nicht sofort begehbar ist. Kostengünstiger ist die Verwendung eines für bituminösen Straßenbau vorgesehenen Deckenfertigers. Mit einem solchen Deckenfertiger kann Walzbeton (RCC) eingebaut werden, d.h. eine heterogene Masse aus Zementbeton, die jedoch mit Vibrations- und Gummiradwalzen nachzuverdichten ist. Wegen des geringen maschinellen Aufwandes sind hierbei gegenüber dem konventionellen Betoneinbau mit Gleitschalungsfertigern wesentliche Kosteneinsparungen möglich. Die beste Lösung für den Betondeckeneinbau bietet jedoch die sogenannte PCC-Technologie, die mit einem Deckenfertiger mit einer Hochverdichtungs-Einbaubohle (DE-C-31 14 049) anwendbar ist, wobei erdfeuchter und schwer verdichtbarer Beton mit einer Zusammensetzung aus Korngrößen von 0 - 2 (Sand), 2 - 8 (Kies) und Korngrößen 8 - 22 aus gebrochenem Material verarbeitet und hochverdichtet wird. Das Resultat ist ein durch die Verdichtungswirkung der Hochverdichtungsbohle sofort und ohne bleibende Fußabdrücke begehbarer Beton mit hoher Standfestigkeit und einer Proktordichte von 96 % in 15 cm Tiefe. Beim Einbau ist dabei auf optimalen Wassergehalt zu achten. Es läßt sich ein profilgerechter Straßenbelag ohne Randbegrenzung und mit größtmöglicher Ebenheit erzielen. Mit einem solchen Deckenfertiger mit einer Hochverdichtungs-Einbaubohle läßt sich auch Drain- oder Flüsterbeton einbauen, dessen Vorteile sehr hohe Lärmminderung (= ≧ - 5 dB(A)), gutes Drainverhalten, d.h. keine Sprühfahnen, kein Aquaplaning, hohe Belastbarkeit (Hohlraumgehalt = ≧ 15 Vol.-%, gute Griffigkeit bei trockener und nasser Oberfläche, hohe Verformungsstabilität und günstige thermische Eigenschaften, z.B. geringes Aufheizen im Sommer, sind.Multi-layer concrete layers are increasingly being produced instead of black ceilings. Heavy traffic, in particular, puts a strain on road construction with the following factors: high static and dynamic wheel forces, tire contact patches, acceleration and deceleration, driving speed, traffic density and the resulting climatic influences. The road superstructure usually consists of one or more base layers and the road surface. Its thickness depends on the traffic load, the climatic conditions and the sensitivity to frost. The base courses have the task of transferring the traffic loads from the road surface to the subsoil or the substructure without deforming the subgrade. Base layers consist, for example, of unbound or bound mineral mixtures. Bituminous or hydraulic binders are used for bound base layers. Unbound base layers are the frost protection layer, the ballast base layer and the gravel base layer. The frost protection layer is the first base layer of the superstructure and prevents capillary water from entering the superstructure. Bound base layers include hydraulically bound base layers (HGT), concrete base layers or bituminous base layers. A concrete base layer is used on subsoil sensitive to subsidence. It consists, for example, of concrete B 15 or B 25 according to DIN 1045 with an installation thickness of approx. 15 cm and has so far been manufactured with a conventional slipform paver or a rail-guided concrete paver. This layer must be provided with transverse and longitudinal joints and protected from drying out after installation. Concrete ceilings are mainly used in heavily used traffic areas, such as highways, airfields and commercial routes. They are insensitive to temperature, have a long service life and are bright, easy to grip and wear-resistant. So far, the concrete slab has been installed in one layer or with a slipform paver in two layers with differently mixed concrete mixes. The disadvantage of slipform pavers is that they can only compact very easily compactable concrete with a w / z value> 0.4, which, however, cannot be walked on immediately. The use of a paver intended for bituminous road construction is cheaper. With such a paver, rolled concrete (RCC) can be installed, ie a heterogeneous mass made of cement concrete, which, however, has to be compacted with vibration and rubber wheel rollers. Because of the low mechanical effort, this is essential compared to conventional concrete paving with slipform pavers Cost savings possible. The best solution for paving concrete, however, is the so-called PCC technology, which can be used with a paver with a high compaction screed (DE-C-31 14 049), whereby earth-moist and difficult-to-compact concrete with a composition of grain sizes from 0 - 2 (Sand), 2 - 8 (gravel) and grain sizes 8 - 22 are processed from broken material and highly compressed. The result is a concrete that can be walked on immediately and without permanent footprints thanks to the compacting effect of the high compaction screed, with high stability and a processor density of 96% at a depth of 15 cm. When installing, ensure that the water content is optimal. It is possible to achieve a road surface that conforms to the profile without any boundary and with the greatest possible flatness. With such a paver with a high compaction screed, drain or whisper concrete can also be installed, the advantages of which are very high noise reduction (= ≧ - 5 dB (A)), good drainage behavior, ie no spray flags, no aquaplaning, high resilience (void content = ≧ 15 vol .-%, good grip on dry and wet surfaces, high deformation stability and favorable thermal properties, such as low heating in summer.

PCC-, Drain- bzw. Flüsterbeton erfordern ggfs. mehrlagigen Aufbau mit oder ohne Haftbrücke auf eine Tragschicht, wobei eine Unterbetonschicht aus PCC frisch hergestellt sein kann und mit dem Deckenfertiger befahrbar sein muß. Gegebenenfalls kann die Unterbetonschicht auch eine fertige Betonstraßenkonstruktion sein. Mit einem Deckenfertiger mit Hochverdichtungsbohle läßt sich bisher jedoch nur eine einzige Deckenschicht einbauen und verdichten.PCC, drainage or whispered concrete may require a multi-layer structure with or without an adhesive bridge on a base course, whereby a sub-concrete layer can be freshly made from PCC and must be drivable with the paver. If necessary, the sub-concrete layer can also be a finished concrete road construction. With a paver with high compaction screed, however, only a single layer of paving has so far been able to be installed and compacted.

Zum technologischen Hintergrund gehören auch noch DE-U-93 13 161, FR-A-26 97 036, EP-A-0 536 052, DE-U-93 17 124 und US-A-4 073 592.The technological background also includes DE-U-93 13 161, FR-A-26 97 036, EP-A-0 536 052, DE-U-93 17 124 and US-A-4 073 592.

Der Erfindung liegt die Aufgabe zugrunde, einen Deckenfertiger der eingangs genannten Art zu schaffen, mit dem qualitativ hochwertige, mehrlagige Betondecken einbaubar sind, sowie ein Verfahren zum Herstellen dieser Betondeckenkonstruktion anzugeben.The invention has for its object to provide a paver of the type mentioned, with which high-quality, multi-layer concrete ceilings can be installed, and to provide a method for producing this concrete ceiling construction.

Die gestellte Aufgabe wird erfindungsgemäß mit den im Patentanspruch 1 enthaltenen Merkmalen gelöst. Ein zweckmäßiges Verfahren zum Herstellen einer qualitativ hochwertigen Betondeckenkonstruktion geht aus Anspruch 15 hervor.The object is achieved according to the invention with the features contained in claim 1. An expedient method for producing a high-quality concrete ceiling construction emerges from claim 15.

Der Deckenfertiger baut nicht nur jede Belagschicht höhengerecht ein, sondern verdichtet jede Belagschicht sofort in hohem Maße. Die Beton-Hochverdichtungs-Einbaubohle ist dabei speziell auf das Mischgutbeton abgestimmt. Ein Nachwalzen der Betondeckenkonstruktion entfällt. Die Qualität der Betondeckenkonstruktion ist höher als beim Einbauen mit einem Gleitschalungsfertiger. Ferner ist der Kostenaufwand für das mit diesem Deckenfertiger durchgeführte Verfahren wesentlich geringer.The paver not only paves every covering layer to the right height, but also immediately densifies every covering layer to a high degree. The concrete high compaction screed is specially tailored to the mix concrete. There is no need to re-roll the concrete ceiling structure. The quality of the concrete ceiling construction is higher than when installing with a slipform paver. Furthermore, the cost of the process carried out with this paver is significantly lower.

Bei der Ausführungsform gemäß Anspruch 2 erbringt die vorneliegende Tampereinrichtung eine Vorverdichtung und Glättung, ehe das Glättblech weiter verdichtet und glättet. Die Preßleiste erzeugt schließlich die erforderliche hohe Endverdichtung, wobei es besonders wichtig ist, daß die Preßleiste mit nach unten gerichteten Schwellkraftimpulsen ohne Schlagwirkung auf die Belagschicht gedrückt wird, so daß die Schwellkräfte ohne Kornzertrümmerung sehr tief in die Belagschicht einwirken. Da die Reaktionskräfte aus der Schwellkraftbeaufschlagung nach oben gegen die Gesamtmasse der Einbaubohle abgestützt sind, lassen sich in der dynamischen Phase, in der die Schwellkraftimpulse mit einer über der Eigenfrequenz der gesamten Bohlenmasse liegenden Frequenz einwirken, außerordentlich hohe Verdichtungskräfte erzeugen, deren Wert größer sein kann als das Gewicht der Gesamtmasse der Bohle. Weitere Informationen zur Hochverdichtungswirkung solcher Einbaubohlen sind aus DE-C-31 14 049 entnehmbar, auf die hiermit verwiesen wird.In the embodiment according to claim 2, the tamper device located in front provides pre-compression and smoothing before the smoothing plate further compresses and smoothes. The pressure bar finally produces the required high final compression, it being particularly important that the pressure bar is pressed with downward swelling force impulses without impact on the covering layer, so that the swelling forces act very deeply in the covering layer without grain destruction. Since the reaction forces from the threshold force upward are supported against the total mass of the screed, extraordinarily high compaction forces can be generated in the dynamic phase, in which the threshold force pulses act at a frequency above the natural frequency of the total screed mass, the value of which can be greater than the weight of the total mass of the screed. Further Information on the high compaction effect of such screeds can be found in DE-C-31 14 049, to which reference is hereby made.

Besonders wichtig ist das Merkmal von Anspruch 3, weil mit dem verringerten Einzugswinkel der Tampervorrichtung Beton besonders gut verarbeitet und vorverdichtet wird.The feature of claim 3 is particularly important because concrete is processed and pre-compacted particularly well with the reduced feed angle of the tamper device.

Eine weitere, wichtige Ausführungsform geht aus Anspruch 4 hervor. Mit dem Haftmittel wird eine Haftbrücke dann hergestellt, wenn zwischen den Belagschichten eine spezielle Verbindung herzustellen ist, d.h., eine spezielle Haftung zwischen einer untersten Tragschicht (HGT) oder einer alten Betondecke oder Bitumendecke und der ersten eingebauten Belagschicht. Das Erzeugen der Haftbrücke mit demselben Deckenfertiger, der auch die Belagschichten einbaut, ist umweltfreundlich, kostengünstig und effektiv.Another important embodiment is set out in claim 4. The adhesive is used to create an adhesive bridge if a special connection has to be made between the covering layers, i.e. a special adhesion between a bottom base layer (HGT) or an old concrete or bituminous layer and the first built-in layer. The creation of the adhesive bridge with the same paver that also incorporates the covering layers is environmentally friendly, inexpensive and effective.

Bei der Ausführungsform gemäß Anspruch 5 teilen sich die zwei oder mehr Preßleisten die Hochverdichtungsarbeit der Belagschicht untereinander auf. Es ist aber auch denkbar, eine breite Preßleiste mit einem auf Beton abgestimmten Einzugswinkel zu verwenden.In the embodiment according to claim 5, the two or more pressure bars share the high compression work of the covering layer with one another. But it is also conceivable to use a wide pressure bar with a feed angle matched to concrete.

Bei der Ausführungsform gemäß Anspruch 6 werden mehr als zwei Belagschichten mit demselben Deckenfertiger eingebaut.In the embodiment according to claim 6, more than two covering layers are installed with the same paver.

Bei der Ausführungsform gemäß Anspruch 7 wird eine gegenseitige Beeinträchtigung der Hochverdichtungs-Einbaubohlen beim Arbeiten vermieden. Außerdem bringt diese Art der Kopplung Herstellungs- und Montagevorteile mit sich.In the embodiment according to claim 7, mutual interference of the high compression screeds is avoided when working. This type of coupling also has manufacturing and assembly advantages.

Alternativ ist jedoch auch eine Ausführungsform gemäß Anspruch 8 denkbar.Alternatively, however, an embodiment according to claim 8 is also conceivable.

Besonders zweckmäßig ist es, gemäß Anspruch 9 die Mischgutbehälter durch austauschbare Beton-Container zu bilden, die getrennt vom Fertiger gefüllt, hertransportiert und rasch ausgetauscht werden.It is particularly expedient, according to claim 9, to form the mix containers by exchangeable concrete containers which are filled, transported and quickly replaced separately from the paver.

Um Stillstandszeiten des Deckenfertigers bei der Arbeit zu vermeiden, ist die Ausführungsform gemäß Anspruch 10 zweckmäßig.In order to avoid downtimes of the paver at work, the embodiment according to claim 10 is useful.

Die Ausbildung der Sprühvorrichtung als Sprührampe schafft einen über die jeweilige Einbaubreite durchgehenden Sprühbereich für die Haftbrücke.The design of the spray device as a spray ramp creates a spray area for the adhesive bridge that is continuous over the respective installation width.

Bei der Ausführungsform gemäß Anspruch 12 wird vermieden, daß das Fahrwerk die Haftbrücke beschädigt oder zerstört bzw. durch das Haftmittel verschmutzt wird.In the embodiment according to claim 12 it is avoided that the undercarriage damages or destroys the adhesive bridge or is contaminated by the adhesive.

Gemäß Anspruch 13 wird der größte Teil der Haftbrücke schon vor dem Fahrwerk aufgebracht, während die Aussparungen erst hinter dem Fahrwerk ausgefüllt werden. Es wird mit dieser Ausbildung das Problem des hinter dem Chassis und vor dem ersten Querverteiler zumeist beengten Bauraums gelöst.According to claim 13, the majority of the adhesive bridge is already applied in front of the undercarriage, while the recesses are only filled in behind the undercarriage. This design solves the problem of the installation space, which is usually cramped behind the chassis and in front of the first cross distributor.

Bei der Ausführungsform gemäß Anspruch 14 läßt sich die Einbaubreite der Betondeckenkonstruktion verändern.In the embodiment according to claim 14, the installation width of the concrete ceiling structure can be changed.

Mit dem Verfahren wird auf einfache Weise das Problem gelöst, das sich beim Einbauen mehrlagiger Betondeckenkonstruktionen dadurch ergibt, daß die jeweils untere Belagschicht für den Deckenfertiger nicht befahrbar ist, solange sie sich noch in frischem Zustand befindet, der jedoch für die wirksame Verbindung mit der daraufliegenden Belagschicht günstig ist. Da alle Belagschichten mit demselben Fertiger einander überlappend eingebaut und jeweils für sich hochverdichtet werden, entsteht ein sehr fester Verbund und wird mit günstigem Kostenaufwand die Betondeckenkonstruktion in einem Zug fertiggestellt. Ein Nachwalzen ist nicht mehr erforderlich.With the method, the problem is solved in a simple manner, which results when installing multi-layer concrete ceiling constructions in that the respective lower covering layer is impassable for the paver as long as it is still in a fresh state, which is, however, for the effective connection with the one lying on it Covering layer is favorable. Since all covering layers are installed with the same paver overlapping each other and each highly compacted, a very strong bond is created and is inexpensive the concrete ceiling construction completed in one go. Roughing is no longer necessary.

Bei der Verfahrensvariante gemäß Anspruch 16 werden zwei oder mehr Betonschichten in einem Zug eingebaut, wobei die erdfeuchte Konsistenz zu guter Verarbeitbarkeit einerseits und zu sehr wirksamen Verbindung der Belagschichten andererseits führt.In the process variant according to claim 16, two or more concrete layers are installed in one go, the earth-moist consistency leading to good workability on the one hand and to very effective connection of the covering layers on the other.

Bei der Ausführungsvariante gemäß Anspruch 17 wird als erste Belagschicht eine hydraulisch gebundene Tragschicht vorgesehen, die ebenfalls von demselben Deckenfertiger eingebaut wird wie die nachfolgende(n) Betonbelagschicht(en).In the embodiment variant according to claim 17, a hydraulically bonded base layer is provided as the first covering layer, which is also installed by the same paver as the subsequent concrete covering layer (s).

Die Verfahrensvariante gemäß Anspruch 18 ist wichtig, wenn der Untergrund eine alte Beton- oder Bitumenschicht oder gegebenenfalls eine hydraulisch gebundene Tragschicht ist.The method variant according to claim 18 is important if the substrate is an old layer of concrete or bitumen or possibly a hydraulically bound base layer.

Anhand der Zeichnungen werden Ausführungsformen des Erfindungsgegenstandes erläutert. Es zeigen:

Fig. 1
eine Seitenansicht eines Deckenfertigers, und
Fig. 2 - 4
schematische Druntersichten von Ausführungsformen des Deckenfertigers der Fig. 1.
Embodiments of the subject matter of the invention are explained with the aid of the drawings. Show it:
Fig. 1
a side view of a paver, and
Figs. 2-4
schematic bottom views of embodiments of the paver of FIG. 1st

Ein Deckenfertiger F gemäß Fig. 1 weist ein Chassis 1 mit einem Fahrwerk 2 (Raupen- oder Räderfahrwerk) auf und einen Führerstand 3 angrenzend an ein Primärantriebsaggregat 4 (dieselhydraulisches- oder dieselelektrisches Antriebsaggregat). Auf dem Chassis 1 sind vorne mindestens zwei Mischgutbehälter 5, 6 angeordnet. Ferner ist ein Haftmitteltank 7 vorgesehen. Jeder Mischgutbehälter 5, 6 ist über eine eigene Förderstrecke 8, 9 (Förderbänder, Schnecken oder Kratzerförderer) mit je einem in Fahrtrichtung des Fertigers (Fig. 1 nach links) einem hinter dem Chassis 1 liegendem Bereich verbunden. Die Förderstrecke 9 führt zu einem Querverteiler 10 (Verteiler-schnecke), der unmittelbar hinter dem Ende des Chassis 1 angeordnet ist. Die Förderstrecke 8 führt hingegen zu einem weiteren Querverteiler 11 (Verteilerschnecke), die der weiter hinten angeordnet ist als der erste Querverteiler 10. Sofern ein dritter oder sogar noch weitere Mischgutbehälter (nicht gezeigt) auf dem Chassis vorgesehen ist, führt von diesem eine weitere Förderstrecke (nicht gezeigt) zu einem noch weiter hintenliegenden in den Querverteiler 12.A paver F according to FIG. 1 has a chassis 1 with a chassis 2 (crawler or wheel chassis) and a driver's cab 3 adjacent to a primary drive unit 4 (diesel-hydraulic or diesel-electric drive unit). At least two mix containers 5, 6 are arranged at the front on the chassis 1. An adhesive tank 7 is also provided. Each mix container 5, 6 is connected via its own conveyor section 8, 9 (conveyor belts, screws or scraper conveyors) to an area located behind the chassis 1 in the direction of travel of the paver (FIG. 1 to the left). The conveyor section 9 leads to a cross distributor 10 (distributor screw), which is arranged immediately behind the end of the chassis 1. The conveyor line 8, on the other hand, leads to a further cross distributor 11 (distribution screw), which is arranged further back than the first cross distributor 10. If a third or even further mix container (not shown) is provided on the chassis, a further conveyor line leads from it (not shown) to an even further back in the cross distributor 12.

Am Chassis 1 ist ferner eine Sprühvorrichtung S für ein Haftmittel vorgesehen, wobei in Fig. 1 eine Sprührampe 13 unmittelbar hinter dem Fahrwerk am Chassis 1 angeordnet ist. Die Fig. 2 - 4 zeigen Detailvariationen der Sprühvorrichtung S.A spray device S for an adhesive is also provided on the chassis 1, a spray ramp 13 being arranged on the chassis 1 directly behind the chassis in FIG. 1. 2-4 show detailed variations of the spray device S.

Gemäß Fig. 1 sind am Chassis 1 seitliche Ausleger 14, 15 angeschlossen, die jeweils eine Hochverdichtungs-Einbaubohle B1 und B2 schleppen. Ist ein dritter Mischgutbehälter (nicht gezeigt) am Chassis 1 vorgesehen, dann wird über strichliert angedeutete Ausleger 16 eine weitere Hochverdichtungs- Einbaubohle B3 nachgeschleppt.1, lateral arms 14, 15 are connected to the chassis 1, each of which hauls a high-compression screed B1 and B2. If a third mix container (not shown) is provided on the chassis 1, then a further high compaction screed B3 is dragged along by means of outlines 16 indicated by broken lines.

Die dem Chassis 1 nächstliegende Hochverdichtungs-Einbaubohle B1 baut das vom Querverteiler 10 querverteilte Mischgut ein. Die Hochverdichtungs-Einbaubohle B2 baut das vom zweiten Querverteiler 11 querverteilte Mischgut ein. Die gegebenenfalls dritte Hochverdichtungs-Einbaubohle B3 baut das vom Querverteiler 12 verteilte Mischgut ein. Die Hochverdichtungs-Einbaubohle B1 bildet eine erste hochverdichtete Belagschicht C1, auf der die zweite Hochverdichtungs-Einbaubohle B2 eine weitere, hochverdichtete Einbauschicht C2 einbaut, ehe gegebenenfalls die dritte Hochverdichtungs-Einbaubohle B3 eine weitere Belagschicht C3 hochverdichtet einbaut.The high-compression screed B1 closest to the chassis 1 paves the mix that is distributed by the cross distributor 10. The high-compaction screed B2 paves the mix that is cross-distributed by the second cross-distributor 11. The possibly third high compaction screed B3 paves the mixed material distributed by the cross distributor 12. The high-compression screed B1 forms a first high-density screed layer C1, on which the second high-compression screed B2 paves a further, high-density paving layer C2, before the third high-compression screed B3 paves a further high-density screed layer C3.

Jede Hochverdichtungs-Einbaubohle B1, B2, B3 kann eine vorbestimmte Einbaubreite haben und gegebenenfalls durch seitlich ansetzbare Verlängerungsteile in der Einbaubreite vergrößert oder verkleinert werden. Es ist aber auch denkbar, jede Hochverdichtungs-Einbaubohle B1, B2, B3 als sogenannte Ausziehbohle auszubilden, deren Einbaubreite durch wenigstens einen seitlich ausfahrbaren Ausziehteil (und gegebenenfalls anmontierte Verlängerungsteile) stufenlos verändert werden kann.Each high-compaction screed B1, B2, B3 can have a predetermined pave width and, if necessary, laterally attachable extension parts can be increased or decreased in the installation width. However, it is also conceivable to design each high-compression screed B1, B2, B3 as a so-called extending screed, the paving width of which can be varied continuously by means of at least one laterally extendable extending part (and, if appropriate, attached extension parts).

Zumindest die Hochverdichtungs-Einbaubohlen B2, B3 tragen jeweils eine vorneliegende Tampervorrichtung T mit wenigstens einer Tamperleiste 17, die einen auf Beton abgestimmten Einzugswinkel α von ca. 30° aufweist. Die Tamperleiste 17 wird durch einen nicht-dargestellten Antrieb mit einer wählbaren Frequenz auf- und abbewegt, um das querverteilte Einbaugut vorzuverdichten und zu ebnen. Auf die Tampervorrichtung T folgt wenigstens ein unterseitiges Glättblech 20, das zweckmäßigerweise durch einen Vibrationsantrieb 21 beaufschlagt ist und die Belagschicht glättet und weiterverdichtet. Anschließend an das Glättblech 20 ist wenigstens eine querverlaufende (breitere) Preßleiste 18 oder sind (wie gezeigt) vorzugsweise zwei querverlaufende und unmittelbar hintereinanderliegende Preßleisten 18 vorgesehen, die über Schwellkraftantriebe 19 mit nach unten gerichteten Schwellkraftimpulsen beaufschlagt werden, wobei sich die Reaktionskräfte aus den Schwellkraftimpulsen jeweils direkt an der gesamte Masse der Hochverdichtungs-Einbaubohle B1, B2, B3 nach oben abstützen. Auf diese Weise ist in jeder Hochverdichtungs-Einbaubohle B1, B2, B3 eine Hochverdichtungs-Vorrichtung V gebildet, die der eingebauten Belagschicht C1, C2, C3 eine derart hohe Verdichtung verleiht, daß ein Nachwalzen nicht mehr erforderlich ist.At least the high-compression screeds B2, B3 each carry a tamper device T located at the front with at least one tamper bar 17, which has an insertion angle α of approximately 30 ° which is matched to concrete. The tamper bar 17 is moved up and down by a drive (not shown) with a selectable frequency in order to pre-compress and level the cross-distributed installation material. The tamper device T is followed at least by a smoothing plate 20 on the underside, which is expediently acted upon by a vibration drive 21 and smoothes and further compresses the covering layer. Adjacent to the smoothing plate 20 is at least one transverse (wider) pressure bar 18 or (as shown) preferably two transverse and immediately successive pressure bars 18 are provided, which are acted upon by threshold force drives 19 with downward threshold force pulses, the reaction forces arising from the threshold force pulses in each case Support directly on the entire mass of the high compaction screed B1, B2, B3 upwards. In this way, a high compaction device V is formed in each high compaction screed B1, B2, B3, which gives the built-in covering layer C1, C2, C3 such a high compaction that re-rolling is no longer necessary.

Um zwischen dem Untergrund und der ersten Belagschicht C1 eine hochwertige Haftung herzustellen, kann mit der Sprühvorrichtung S eine Haftbrücke H auf den Untergrund aufgebracht werden.In order to produce high-quality adhesion between the substrate and the first covering layer C1, an adhesive bridge H can be applied to the substrate with the spray device S.

Gemäß Fig. 2 sind drei Abschnitte 13a, 13b und 13c der Sprührampe 13 der Sprühvorrichtung S vor dem Fahrwerk 2 so angeordnet, daß die Bodenberührungsbereiche des Fahrwerks 2 ausgespart sind. Unmittelbar hinter den Fahrwerken 2 sind zwei weitere Abschnitte 13d der Sprührampe S vorgesehen, die die ausgesparten Bereiche beaufschlagen.According to FIG. 2, three sections 13a, 13b and 13c of the spray ramp 13 of the spray device S are arranged in front of the undercarriage 2 in such a way that the areas of contact with the ground of the undercarriage 2 are left out. Immediately behind the running gear 2, two further sections 13d of the spray ramp S are provided, which act on the recessed areas.

Bei der Ausführungsform gemäß Fig. 3 sind drei Sprührampen-Abschnitte 13a - 13c hinter dem Fahrwerk 2 angeordnet, derart, daß die gesamte Einbaubreite der Hochverdichtungs-Einbaubohlen B1 und B2 überdeckt wird.In the embodiment according to FIG. 3, three spray ramp sections 13a-13c are arranged behind the undercarriage 2 in such a way that the entire installation width of the high-compression screeds B1 and B2 is covered.

Bei der Ausführungsform gemäß Fig. 4 sind nur zwei Sprührampen-Abschnitte 13a und 13b vorgesehen, die einander in Querrichtung überlappen.In the embodiment according to FIG. 4, only two spray ramp sections 13a and 13b are provided, which overlap one another in the transverse direction.

Bei allen Ausführungsformen der Fig. 2 - 4 lassen sich die Abschnitte 13a - 13c in Querrichtung und relativ zueinander verstellen, um die Breite der Haftbrücke an die Einbaubreite der Hochverdichtungs-Einbaubohlen B1, B2 und B3 anzupassen.In all of the embodiments of FIGS. 2-4, the sections 13a-13c can be adjusted transversely and relative to one another in order to adapt the width of the adhesive bridge to the installation width of the high-compression screeds B1, B2 and B3.

Mit dem Deckenfertiger F gemäß Fig. 1 (mit den Hochverdichtungs-Einbaubohlen B1 und B2) läßt sich beispielsweise auf einen vorbereiteten Untergrund, z.B. einer alten Beton- oder Bitumendecke, zunächst eine Haftbrücke H aufbringen, ehe als Tragschicht eine PCC-Betonbelagschicht eingebaut wird, auf der als Decke ebenfalls eine PCC-Betonschicht eingebaut wird (frisch-frisch-fest). Als Decke kann jedoch auch Drainbeton auf die PCC-Tragschicht eingebaut werden. Ist der Deckenfertiger F wie in Fig. 1 mit drei Hochverdichtungs-Einbaubohlen B1, B2 und B3 ausgestattet, dann kann als erste Tragschicht auf den vorbereiteten Untergrund eine hydraulisch gebundene Tragschicht (HGT), z.B. Mineralstoffe mit Wasser, Zement, Kalk oder Bitumen, eingebaut werden, auf der als zweite Tragschicht eine PCC-Betonbelagschicht aufgebracht wird. Auf der PCC-Betonbelagschicht wird schließlich Drainbeton eingebaut.With the paver F according to FIG. 1 (with the high compaction screeds B1 and B2) it is possible, for example, to first apply an adhesive bridge H to a prepared surface, for example an old concrete or bituminous ceiling, before a PCC concrete covering layer is installed as a base layer. on which a PCC concrete layer is also installed as a ceiling (fresh-fresh-firm). However, drain concrete can also be installed on the PCC base layer as a ceiling. If the paver F is equipped with three high compaction screeds B1, B2 and B3 as in Fig. 1, then a hydraulically bound base layer (HGT), e.g. minerals with water, cement, lime or bitumen, can be installed as the first base layer on which a PCC concrete layer is applied as a second base layer. Finally, drain concrete is installed on the PCC concrete layer.

Weitere Kombinationen unterschiedlicher Schichtarten sind ebenfalls möglich. Denkbar ist es ferner, mehr als drei Hochverdichtungs-Einbaubohlen anzuschließen, um mehr als zwei oder drei Belagschichten gleichzeitig einzubauen.Other combinations of different types of layers are also possible. It is also conceivable to connect more than three high-compression screeds in order to install more than two or three covering layers at the same time.

Claims (18)

Deckenfertiger zum gleichzeitigen Einbauen mindestens zweier Belagschichten, mit einem Chassis, einem Fahrwerk, wenigstens zwei am Chassis angeordneten Mischgutbehältern, einem jedem Mischgutbehälter zugeordneten, hinter dem Chassis angeordneten Querverteiler, der von seinem Mischgutbehälter über eine im Chassis verlaufende Förderstrecke beschickbar ist, und mit seitlichen Auslegern am Chassis, an denen hinter jeden Querverteiler eine geschleppte Einbauvorrichtung zum Einbauen einer Belagschicht angeordnet ist, dadurch gekennzeichnet, daß alle Einbauvorrichtungen Hochverdichtungs-Einbaubohlen (B1, B2, B3) zum nachverdichtungsfreien Einbauen einer Belagschicht (C1, C2, C3) sind, und daß zumindest jede hintere Hochverdichtungs-Einbaubohle (B2, B3) als Beton-Hochverdichtungs-Einbaubohle ausgebildet ist.Ceiling paver for the simultaneous installation of at least two covering layers, with a chassis, a running gear, at least two mix containers arranged on the chassis, a cross distributor assigned to each mix container, arranged behind the chassis, which can be fed from its mix container via a conveyor line running in the chassis, and with side arms on the chassis, on which a towed installation device for installing a covering layer is arranged behind each transverse distributor, characterized in that all installation devices are high-compression screeds (B1, B2, B3) for installing a covering layer (C1, C2, C3) without compression, and in that at least each rear high-compression screed (B2, B3) is designed as a concrete high-compression screed. Deckenfertiger nach Anspruch 1, dadurch gekennzeichnet, daß jede Hochverdichtungs-Einbaubohle (B1, B2, B3) eine vorne liegende Tampervorrichtung (T) und wenigstens eine durch ein, vorzugsweise mittels einer Vibrationsvorrichtung (V) beaufschlagbares, Glättblech (20) davon getrennte, querverlaufende Hochverdichtungs-Preßleiste (18) aufweist, die mit Schwellkraftantrieben (19) in Arbeitsverbindung steht, die in der Hochverdichtungs-Einbaubohle derart angeordnet sind, daß ihre nach oben gerichteten Reaktionskräfte aus der Beaufschlagung der Preßleiste (18) direkt gegen die Gesamtmasse der Hochverdichtungs-Einbaubohle abgestützt sind.Ceiling paver according to claim 1, characterized in that each high compaction screed (B1, B2, B3) has a tamper device (T) at the front and at least one transverse cross-section separated by a smoothing plate (20) which can preferably be acted upon by a vibration device (V) High compression molding (18), which is in working connection with threshold actuators (19), which are arranged in the high compression screed such that their upward reaction forces from the action of the pressure bar (18) directly against the total mass of the high compression screed are supported. Deckenfertiger nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die als Beton-Hochverdichtungs-Einbaubohle ausgebildete Hochverdichtungs-Einbaubohle (B2, B3) eine Tampervorrichtung (T) mit einem deutlich kleineren Tamperleisten-Einzugswinkel α als 45°, vorzugsweise mit etwa 30°, aufweist.Ceiling paver according to claims 1 and 2, characterized in that the high compression paving screed (B2, B3) designed as a concrete high compaction screed has a tamper device (T) with a tamper bar retraction angle α than 45 °, preferably approximately 30 ° , having. Deckenfertiger nach Anspruch 1, dadurch gekennzeichnet, daß am Chassis (1) mittelbar oder unmittelbar wenigstens ein Haftmitteltank (7) angeordnet und mit einem am Chassis (1) angeordneten Sprüheinrichtung (S) verbunden ist.Ceiling paver according to claim 1, characterized in that at least one adhesive tank (7) is arranged directly or indirectly on the chassis (1) and is connected to a spray device (S) arranged on the chassis (1). Deckenfertiger nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß jede Hochverdichtungs-Einbaubohle (B1, B2, B3) zwei unmittelbar hintereinanderliegende Preßleisten (18) aufweist.Ceiling paver according to claims 1 and 2, characterized in that each high-compression screed (B1, B2, B3) has two pressure strips (18) lying directly one behind the other. Deckenfertiger nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens ein weiterer Beton-Mischgutbehälter mit einer weiteren Förderstrecke zu einem weiteren, hinter der zweiten Beton-Hochverdichtungs-Einbaubohle (B2) angeordneten Querverteiler (12) und hinter diesem eine weitere Beton-Hochverdichtungs-Einbaubohl (B3) vorgesehen sind.Ceiling paver according to claim 1, characterized in that at least one further concrete mix container with a further conveying path to a further cross distributor (12) arranged behind the second concrete high-compression screed (B2) and behind this a further concrete high-compression screed ( B3) are provided. Deckenfertiger nach wenigstens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß jede Hochverdichtungs-Einbaubohle (B1, B2, B3) mit einem eigenen Auslegerpaar (14, 15, 16) an das Chassis (1) gekoppelt ist.Ceiling paver according to at least one of claims 1 to 6, characterized in that each high-compression screed (B1, B2, B3) is coupled to the chassis (1) with its own pair of booms (14, 15, 16). Deckenfertiger nach wenigstens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß jeweils eine hintere Hochverdichtungs-Einbaubohle (B2, B3) mit Auslegern (15, 16) an Ausleger (14, 15) einer davor angeordneten Hochverdichtungs-Einbaubohle (B2, B1) angekoppelt ist.Ceiling paver according to at least one of claims 1 to 6, characterized in that in each case a rear high-compression screed (B2, B3) with outriggers (15, 16) on outrigger (14, 15) of a high-compression screed (B2, B1) arranged in front of it is coupled. Deckenfertiger nach Anspruch 1, dadurch gekennzeichnet, daß zumindest einer der Mischgutbehälter (5, 6) ein austauschbar am Chassis (1) angeordneter Beton-Container ist.Ceiling paver according to claim 1, characterized in that at least one of the mix containers (5, 6) is a concrete container which is interchangeably arranged on the chassis (1). Deckenfertiger nach einem der Ansprüche 1 und 9, dadurch gekennzeichnet, daß die Mischgutbehälter (5, 6) über vom Deckenfertiger (F) getrennt fahrende Beschicker, vorzugsweise über Förderbänder oder Förderpumpen, von vorne oder von der Seite mit dem jeweiligen Mischgut beschickbar sind.Ceiling paver according to one of claims 1 and 9, characterized in that the mixed material containers (5, 6) preferably by feeders traveling separately from the paver (F) can be loaded with the respective mix from conveyor belts or feed pumps, from the front or from the side. Deckenfertiger nach Anspruch 4, dadurch gekennzeichnet, daß die Sprühvorrichtung (S) eine querliegende Sprührampe (13) aufweist, die aus mehreren, einen über die gesamte Einbaubreite der Hochverdichtungs-Einbaubohlen (B1, B2, B3) durchgehenden Sprühbereich definierenden Abschnitten (13a - 13d) besteht.Ceiling paver according to claim 4, characterized in that the spraying device (S) has a transverse spray ramp (13) which consists of several sections (13a - 13d) which define a spraying area which extends over the entire width of the high-compression screed (B1, B2, B3) ) consists. Deckenfertiger nach Anspruch 11, dadurch gekennzeichnet, daß alle Sprührampenabschnitte (13a - 13c) hinter dem Fahrwerk (2) angeordnet sind.Ceiling paver according to claim 11, characterized in that all spray ramp sections (13a - 13c) are arranged behind the undercarriage (2). Deckenfertiger nach Anspruch 11, dadurch gekennzeichnet, daß Sprührampenabschnitte (13a - 13c) vor dem Fahrwerk (2) angeordnet und in den Bodenberührungsbereichen des Fahrwerks (2) ausgespart sind, und daß hinter dem Fahrwerk (2) kurze Sprührampenabschnitte (13d) angeordnet sind, die die Aussparungen der vorderen Abschnitte überdecken.Ceiling paver according to claim 11, characterized in that spray ramp sections (13a - 13c) are arranged in front of the undercarriage (2) and are recessed in the ground contact areas of the undercarriage (2), and in that short spray ramp sections (13d) are arranged behind the undercarriage (2), that cover the recesses of the front sections. Deckenfertiger nach Anspruch 1, dadurch gekennzeichnet, daß die Hochverdichtungs-Einbaubohlen (B1, B2, B3) in der Einbaubreite verstellbare Ausziehbohlen sind oder durch Anbauteile in ihrer Einbaubreite veränderbar sind.Ceiling paver according to claim 1, characterized in that the paving screeds (B1, B2, B3) are extendable planks with adjustable paving width or their paving width can be changed by means of attachments. Verfahren zum Einbauen von Belagschichten mit einem Deckenfertiger gemäß wenigstens einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß mindestens zwei Belagschichten (C1, C2, C3) mit demselben Deckenfertiger (F) unmittelbar aufeinanderfolgend und in einem Zug derart eingebaut werden, daß die erste Belagschicht (C1) auf den vom Deckenfertiger befahrenen Untergrund und die jeweils nächste Einbauschicht (C2, C3) auf die davor eingebaute Belagschicht (C1) eingebaut wird, und daß jede erste Belagschicht (C1) beim Einbauen bis zur Nachverdichtungsfreiheit hochverdichtet und jede nächste Belagschicht auf die hochverdichtete Belagschicht eingebaut und ihrerseits bis zur Nachverdichtungsfreiheit hochverdichtet wird.Method for laying covering layers with a paver according to at least one of claims 1 to 14, characterized in that at least two covering layers (C1, C2, C3) with the same paver (F) are installed immediately in succession and in one go such that the first Covering layer (C1) is installed on the surface used by the paver and the next paving layer (C2, C3) is installed on the covering layer (C1) installed in front of it, and that every first covering layer (C1) is highly compacted during paving until it is free of compaction and every next one The covering layer is installed on the highly compressed covering layer and, in turn, is densified until it is free from recompression. Verfahren nach Anspruch 15, dadurch gekennzeichnet, daß die erste und jede nächste Belagschicht (C1, C2, C3) aus erdfeuchtem Beton eingebaut wird.Method according to claim 15, characterized in that the first and each next covering layer (C1, C2, C3) made of earth-moist concrete is installed. Verfahren nach Anspruch 15, dadurch gekennzeichnet, daß die erste Belagschicht (C1) als hydraulisch gebundene Tragschicht, z.B. aus Mineralstoffen und Wasser, Zement, Kalk und Bitumen, und jede nächste Belagschicht (C2, C3) aus erdfeuchtem Beton eingebaut wird.Method according to claim 15, characterized in that the first covering layer (C1) is installed as a hydraulically bound base layer, for example made of minerals and water, cement, lime and bitumen, and every next covering layer (C2, C3) made of earth-moist concrete. Verfahren nach wenigstens einem der Ansprüche 15 bis 17, dadurch gekennzeichnet, daß vor dem Einbauen der ersten Belagschicht mit demselben Deckenfertiger (F) eine Haftbrücke (H) aufgesprüht wird.Method according to at least one of Claims 15 to 17, characterized in that an adhesive bridge (H) is sprayed on with the same paver (F) before the first covering layer is installed.
EP96106844A 1995-06-21 1996-04-30 A Road Finisher and a Method of Applying Surface Layers Expired - Lifetime EP0750070B1 (en)

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DE29510058U DE29510058U1 (en) 1995-06-21 1995-06-21 Paver
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EP0750070B1 (en) 2001-04-04
CN1259484C (en) 2006-06-14
US5735634A (en) 1998-04-07
DE29510058U1 (en) 1995-11-02
CN1141986A (en) 1997-02-05
ATE200328T1 (en) 2001-04-15
DE59606689D1 (en) 2001-05-10

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