EP3744895A1 - Procédé de fabrication d'une surface de circulation, surface de circulation et dalle en béton préfabriqué - Google Patents

Procédé de fabrication d'une surface de circulation, surface de circulation et dalle en béton préfabriqué Download PDF

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Publication number
EP3744895A1
EP3744895A1 EP19177211.0A EP19177211A EP3744895A1 EP 3744895 A1 EP3744895 A1 EP 3744895A1 EP 19177211 A EP19177211 A EP 19177211A EP 3744895 A1 EP3744895 A1 EP 3744895A1
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EP
European Patent Office
Prior art keywords
concrete slab
precast concrete
grouting material
elements
filling
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
EP19177211.0A
Other languages
German (de)
English (en)
Other versions
EP3744895B1 (fr
Inventor
Ralf Tulke
Michael Kispert
Andreas Tiemann
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.)
Heinz Schnorpfeil Bau GmbH
Otto Alte Teigeler GmbH
BTE Stelcon GmbH
Original Assignee
Heinz Schnorpfeil Bau GmbH
Otto Alte Teigeler GmbH
BTE Stelcon GmbH
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 Heinz Schnorpfeil Bau GmbH, Otto Alte Teigeler GmbH, BTE Stelcon GmbH filed Critical Heinz Schnorpfeil Bau GmbH
Priority to EP19177211.0A priority Critical patent/EP3744895B1/fr
Publication of EP3744895A1 publication Critical patent/EP3744895A1/fr
Application granted granted Critical
Publication of EP3744895B1 publication Critical patent/EP3744895B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00—Pavings made of prefabricated single units
    • E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
    • 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
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
    • E01C11/103—Joints with packings prepared only in situ; Materials therefor
    • 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
    • E01C23/10—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 for raising or levelling sunken paving; for filling voids under paving; for introducing material into substructure
    • 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
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
    • E01C7/14—Concrete paving
    • E01C7/147—Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering

Definitions

  • the invention relates to a method for producing a traffic area or road traffic area - in particular in the course of the repair or upgrading of an already existing traffic area (existing roadway), with at least one precast concrete slab being applied to an assembly substrate, with a plurality of assembly elements being concreted into the precast concrete slab and wherein the assembly elements each have at least one filling channel penetrating the precast concrete slab for filling or pressing in a grouting material.
  • the aim is to press the grouting material into the space between the prefabricated concrete slab and the mounting surface over the full area possible.
  • the invention also relates to a traffic area and a precast concrete slab.
  • the invention is based on the technical problem of specifying a method of the type mentioned at the beginning with which, on the one hand, a complete and full-area filling of the space between the precast concrete slab and the mounting substrate is possible in a simple and inexpensive manner and with which, on the other hand, a precise height adjustment of the precast concrete slabs can be carried out where the road traffic area produced meets all requirements in the long term.
  • the invention is also based on the technical problem of specifying a suitable traffic area and a suitable precast concrete slab.
  • the invention teaches a method for producing a traffic area or a road traffic area - in particular in the course of the repair or upgrading of an already existing traffic area (existing roadway) - wherein at least one precast concrete slab is applied to an assembly substrate, with the precast concrete slab a plurality of assembly elements is concreted in, the assembly elements each having at least one filling channel penetrating the precast concrete slab for filling or pressing in a grouting material and having at least one adjusting element for adjusting the height of the precast concrete slab, after the precast concrete slab has been applied with the adjustment elements, the height adjustment is carried out by adjusting the vertical distance a between the precast concrete slab and the mounting substrate, wherein grouting material is pressed through the filling channels into the space between the precast concrete slab and the mounting substrate and wherein a mixture of at least two components is used as the grouting material, one component being an organic polymer and one component being an inorganic silicon compound.
  • the precast concrete slabs are in particular precast concrete slabs that are square in plan view or precast concrete slabs that are square in plan view with at least two opposing rounded or curved side surfaces. It is within the scope of the invention that the precast concrete slabs have two surfaces that are parallel or essentially parallel to one another (top and bottom). According to one embodiment of the invention, the precast concrete slabs consist of concrete reinforced with fibers.
  • the grouting material - especially when it is introduced into the filling channels - comprises at least 50% by weight, in particular at least 60% by weight, preferably at least 65% by weight of the two components (organic polymer, inorganic silicon compound).
  • the grouting material has at least 70% by weight, in particular at least 75% by weight, preferably at least 80% by weight, preferably at least 85% by weight, apart from the water contained therein - especially when pouring into the filling channels .-% and very preferably at least 90% by weight of the two components (organic polymer, inorganic silicon compound).
  • the grouting material is expediently designed as a two-component system and contains - apart from the water present - only the two components or essentially the two components (organic polymer, inorganic silicon compound). It is possible that the grouting material contains not only the two components and the water present, but also additives which - based on the mixture of the two components and the additives - preferably only in an amount of a maximum of 5% by weight, in particular a maximum of 4% by weight .-% and preferably a maximum of 3 wt .-% are provided.
  • the organic polymer is at least one polyisocyanate or one polyisocyanate.
  • the grouting material has at least 20% by weight, in particular at least 25% by weight, preferably at least 30% by weight and preferably at least 35% by weight of polyisocyanate - especially when it is introduced into the filling channels.
  • the inorganic silicon compound is at least one alkali metal silicate or one alkali metal silicate and in particular is at least one water glass or one water glass.
  • the grouting material has a proportion of at least 20% by weight, in particular of at least 25% by weight, preferably of at least 30% by weight and preferably of at least 35 - especially when it is poured into the filling channels % By weight of the inorganic silicon compound.
  • the weight ratio of the two components is expediently - especially when filling the grouting material into the filling channels - 2: 1 to 1: 2, preferably 1.5: 1 to 1: 1.5 and in particular 1.2: 1 to 1: 1.2.
  • the grouting material is pressed as a liquid resin mixture through the filling channels into the space between the precast concrete slab and the mounting substrate and preferably hardens in this space without foaming.
  • the embodiment of curing without foaming is of particular importance.
  • the space between a precast concrete slab and the mounting substrate is completely and completely filled with the grouting material so that no cavities remain between the precast concrete slab and the mounting substrate.
  • the method according to the invention is carried out with the proviso that the layer thickness of the grouting material between the precast concrete slab and the mounting substrate is 0.5 to 2.5 cm, preferably 0.7 to 2 cm and particularly preferably 1 to 2 cm, after the grouting material has hardened cm.
  • a very preferred embodiment of the invention is characterized in that this layer thickness is 1.2 to 1.8 cm, in particular 1.3 to 1.7 cm. These layer thicknesses have proven particularly useful in the process according to the invention.
  • an assembly element of the precast concrete slab is also designed as a transport anchor for fixing the precast concrete slab to a transport device.
  • the transport device can be a crane, for example.
  • a mounting element expediently instructs in this embodiment its upper end has a fixation device, which is designed in particular as a fixation internal thread.
  • the mounting element or the transport anchor is fastened to a transport device - for example to a crane - via this fixing device or via this internal fixing thread.
  • a precast concrete slab is expediently transferred to its installation or laying location. It is within the scope of the invention that, following this transport or this transfer, the adjusting element is introduced into the associated assembly element, preferably screwed in.
  • the adjusting element preferably penetrates the precast concrete slab or the adjusting element completely penetrates the precast concrete slab.
  • the adjusting element has the filling channel for the grouting material.
  • the adjusting element is expediently designed to be hollow on the inside. It is within the scope of the invention that the height adjustment of the concrete slab with the adjustment element or with the adjustment elements of the assembly elements takes place before the injection material is pressed in through the filling channel of the adjustment element.
  • the adjusting element is expediently designed as a screwable adjusting tube, the adjusting tube being movable or displaceable when screwing relative to the rest of the mounting element in the direction of the longitudinal axis L of the mounting element.
  • the adjusting element has a manipulating element for screwing the adjusting element.
  • this is one at the upper end of the adjusting element trained screw head, which is expediently designed as a polygonal head.
  • the adjusting element can be screwed with the aid of this manipulating element, preferably a screw head, in the direction of the longitudinal axis L of the associated mounting element. It is within the scope of the invention that when screwing the adjusting element, the adjusting tube can be unscrewed from the underside of the precast concrete slab or screwed into the underside of the precast concrete slab.
  • a particularly recommended embodiment of the invention is characterized in that the adjusting element of an assembly element is removed from the precast concrete slab after the height adjustment and after the grouting material has been pressed in and cured.
  • the adjusting element can then be reused with particular preference.
  • This reusability of the adjusting elements is of particular importance in the context of the invention.
  • an opening on the mounting element that remains on the surface of the precast concrete slab is closed by a plug, in particular closed flush with the surface.
  • the sealing plug can be a stainless steel concrete sealing plug.
  • a precast concrete slab used within the scope of the method according to the invention is recommended to have an area of 4 to 10 m 2 , preferably 5 to 9 m 2 and in particular an area of 6 to 8 m 2 .
  • prefabricated concrete slabs are used which are from 100 to 450 mm, preferably from 150 to 400 mm and in particular from 180 to 300 mm thick exhibit.
  • the surface area of a prefabricated concrete slab used in the process according to the invention is, for example, 300 cm x 600 cm or 250 cm x 500 cm.
  • a recommended embodiment of the invention is characterized in that a prefabricated concrete slab used in the method according to the invention is arcuate on at least two opposite side surfaces or on two opposite side surfaces. Two concrete slabs are then preferably connected to one another in a form-fitting manner with their arcuate side surfaces - arcuate side surface to arcuate side surface.
  • the two curved side surfaces of a precast concrete slab are expediently its two opposite end side surfaces.
  • the two front side surfaces of a precast concrete slab are designed in an arc shape, while the other two side surfaces of the precast concrete slab are straight and parallel or essentially parallel to one another.
  • the two opposing arcuate side surfaces or arcuate end-side surfaces are also arranged parallel or essentially parallel to one another.
  • At least one side surface or at least two opposite side surfaces of a concrete slab are each equipped with at least one form-fitting element or with a plurality of form-fitting elements for a form-fitting connection with an adjacent concrete slab.
  • the form-fit elements are expediently designed as groove elements and / or spring elements and / or dowel elements and / or as dowel chambers. It is advisable, that two adjacent concrete slabs are connected to one another via a tongue and groove connection and / or via a groove and groove connection and / or via a dowel-dowel chamber connection or similar connection.
  • the joint space between two concrete slabs connected to one another is filled with a joint sealing compound.
  • the joint sealing compound is a multi-component system, in particular a two-component system.
  • a multi-component system or a two-component system based on at least one sulfide or polysulfide is preferably used as the joint sealing compound.
  • the joint sealing compound used - particularly in the hardened state - is liquid-tight and fuel-resistant.
  • a particularly preferred embodiment of the invention is characterized in that two adjacent concrete slabs or two concrete slabs to be connected to one another are connected to one another via a groove-groove connection.
  • At least one groove, in particular one groove preferably extends in the longitudinal direction of each side surface of the side surfaces of the two concrete slabs to be connected to one another.
  • the grooves of the two concrete slabs are expediently arranged at the same level or essentially at the same level. It is recommended that the two grooves of the side surfaces or end surfaces of the two concrete slabs to be connected to one another are designed to be mirror-symmetrical with respect to a mirror plane arranged between the two side surfaces of the concrete slabs.
  • the two grooves and the further joint space between the side surfaces of the concrete slabs are expediently filled with the joint sealing compound.
  • This groove-groove connection of two concrete slabs has proven particularly useful in the context of the invention.
  • a particularly preferred embodiment of the method according to the invention is characterized in that prefabricated concrete slabs are used which have at least one grouting material channel in their underside on the mounting substrate side and preferably have at least two grouting material channels.
  • a grouting material channel expediently runs perpendicular or essentially perpendicular to a side surface of the concrete slab. It is recommended that these are linear or essentially linear grouting material channels.
  • the invention is based on the knowledge that with the grouting material channels, on the one hand, an effective distribution of the grouting material in the space between a precast concrete slab and the mounting base can be achieved. On the other hand, the grouting material channels can be used to control a complete or full-surface distribution of the grouting material in the intermediate space.
  • a preferred embodiment is characterized in that at least one grouting material channel is designed to be open towards a side surface of the precast concrete slab.
  • all grouting material channels or all ends of these grouting material channels are designed to be open towards the side surfaces of the concrete slab.
  • at least two grouting material channels are arranged parallel to one another or essentially parallel to one another. It is within the scope of the invention that a grouting material channel extends from a side surface of the concrete slab to the opposite side surface of the concrete slab extends and is expediently designed to be open to these side surfaces of the concrete slab. This enables efficient control of the complete or full-surface distribution of the grouting material on the side surfaces of the concrete slab.
  • a grouting material channel has a depth t of 2 to 20 mm, preferably 3 to 10 mm, and that preferably a grouting material channel a width b of 20 to 100 mm, in particular 30 to 70 mm and preferably from 40 to 60 mm.
  • each assembly element has a filling channel for the grouting material and, preferably, an adjusting element for adjusting the height of the precast concrete slab.
  • the adjusting element present in a mounting element has the filling channel and the filling channel expediently extends in the longitudinal direction of the adjusting element from one end of the adjusting element to the other end of the adjusting element.
  • the filling channel of the adjusting element is at least partially surrounded by an external thread of the adjusting element, which external thread is screwed or can be screwed into an adjusting internal thread of the mounting element.
  • the filling channels expediently have a circular cross section.
  • a preferred embodiment which is of particular importance in the context of the invention, is characterized in that the inner diameter d of the filling channels of the assembly elements or of the adjustment elements is 10 to 100 mm, is preferably 20 to 80 mm, in particular 25 to 70 mm and preferably 25 to 65 mm.
  • a very recommended embodiment is characterized in that the inside diameter of the filling channels is 30 to 60 mm.
  • This inside diameter d of the filling channels is of particular importance in combination with the injection material used according to the invention.
  • the injection material used according to the invention can be introduced in a particularly simple and reliable manner through the filling channels of the adjusting elements with the relatively small inside diameter d.
  • the grouting material used according to the invention allows the adjusting elements, according to a particularly preferred embodiment of the invention, to be removed from the precast concrete slab or from the assembly elements following the height adjustment and after the grouting material has been pressed in and hardened, and indeed can be easily removed .
  • a central filling channel for filling or pressing in the grouting material is arranged in a central central surface section A of the concrete slab, the area of the central central surface section A preferably being 2 to 10%, preferably 2 to 5% of the Surface of the concrete slab. It is particularly preferred within the scope of the invention that the central filling channel is arranged centrally or essentially centrally with respect to the surface of the concrete slab.
  • the central filling channel can be a filling channel of a mounting element or a separate central filling channel without a mounting element.
  • a particularly preferred embodiment of the method according to the invention is characterized in that a precast concrete slab with at least three, preferably with at least four assembly elements is used, each assembly element of the precast concrete slab, which is square in plan view, being arranged in a quarter V assigned to a corner of the concrete slab.
  • a quarter V allocated to a corner of the concrete slab takes up 25% of the surface of the concrete slab.
  • the imaginary center points of the assembly elements in the top view can be connected via imaginary lines to form a square or a rectangle.
  • each of the four assembly elements is arranged in an area quarter V assigned to a corner of the concrete slab.
  • a central filling channel is provided, if at least four mounting elements are present, all four mounting elements are preferably at the same distance or essentially the same distance from the central filling channel. It is recommended that the central filling channel is arranged centrally in an imaginary rectangle spanned by the connection of the center points of four assembly elements.
  • a concrete slab according to the invention has more than two grouting material channels, in particular three to twelve grouting material channels, preferably three to twelve grouting material channels which are parallel to one another or essentially parallel to one another.
  • the subject of the invention is also a traffic area, preferably a road traffic area, wherein at least one precast concrete slab is provided, which is applied to an assembly substrate with the interposition of a layer of grouting material, the precast concrete slab being equipped with a plurality of concreted assembly elements, the assembly elements each having at least one the precast concrete slab penetrating filling channel for the grouting material and each having at least one adjusting element for height adjustment of the precast concrete slab and wherein the grouting material has a mixture of at least two components, one component being an organic polymer and one component being an inorganic silicon compound.
  • the preferred grouting material used has already been specified above.
  • the invention also relates to a precast concrete slab, the precast concrete slab being equipped with a plurality of concreted-in assembly elements, the assembly elements each having at least one filling channel for a grouting material penetrating the precast concrete slab and each having at least one adjusting element for adjusting the height of the precast concrete slab and with at least one side surface , preferably at least one form-fit element or a plurality of form-fit elements for connection to a further precast concrete slab is provided on at least one end face of the precast concrete slab.
  • a groove provided on a side face or end face of the precast concrete slab is of particular importance Form-fit element to, wherein this groove expediently extends over the entire length of the side face or end face of the precast concrete slab.
  • At least one groove is provided on each of two opposite side surfaces or end faces of the precast concrete slab, expediently a groove extending over the length of the side surface or end face.
  • the precast concrete slab according to the invention is expediently equipped with adjusting elements which each have the filling channel and which can be removed from the precast concrete slab - preferably after the height adjustment and after the grouting material has been pressed in and hardened.
  • the invention is based on the knowledge that with the method according to the invention a particularly complete and full-area filling of the space between the prefabricated concrete slabs and the mounting substrate is possible. Nonetheless, a simple, inexpensive and, in particular, low-energy pressing of the pressing material can be carried out.
  • the grouting material used according to the invention is of particular importance here, which is relatively fine-liquid and low-viscosity when it is filled or pressed into the filling channels of the assembly elements and is nonetheless characterized by fast setting.
  • the grouting material according to the invention can be filled very completely into the space between the prefabricated concrete slabs and the mounting substrate without foaming and has an optimal strength development during hardening.
  • FIG. 1 In connection with the simple and effective introduction of the pressing material described above, there is also the preferred embodiment of FIG Mounting elements with their adjusting elements penetrating the concrete slab with integrated filling channels are of particular importance. They support fast, targeted and simple pressing in of the grouting material.
  • the preferred arrangement and distribution of the assembly elements in a concrete slab - especially in combination with the preferably provided central filling channel - is also important here.
  • the form-locking elements preferably present in the side surfaces of the concrete slabs in combination with the grouting material used according to the invention are decisive for a long-term, firm and stable arrangement of the laid concrete slabs.
  • the preferred form-fit elements ensure an optimal transmission of transverse forces in the event of mechanical loads and, in connection with the injection material used according to the invention, have a surprisingly stabilizing effect with regard to a long service life of the traffic area produced according to the invention.
  • the method according to the invention is characterized overall by its simplicity, low expenditure and relatively low costs.
  • the pressing material used according to the invention is also relatively inexpensive.
  • the grouting material is also characterized in particular by high weather resistance, in particular high frost resistance.
  • the figures illustrate a method according to the invention for producing a road traffic area 1, in particular in the course of the repair or upgrading of an already existing traffic area (existing roadway).
  • a plurality of precast concrete slabs 2 are preferably applied to an assembly substrate 3 in the exemplary embodiment.
  • the mounting substrate 3 may be a gravel base layer.
  • a plurality of assembly elements 4 is concreted into each precast concrete slab 2, the assembly elements 4 each having a filling channel 5 penetrating through the precast concrete slab 2 for filling or filling.
  • the mounting elements 4 are preferred and, in the exemplary embodiment, are each equipped with an adjusting element 7 which is used to adjust the height of the respective precast concrete slab 2. After the precast concrete slab 2 has been placed on the mounting substrate 3, the height adjustment of the precast concrete slab 2 is carried out with the adjusting elements 7 by adjusting the vertical distance a of the precast concrete slab 2 to the mounting substrate 3.
  • the adjusting elements 7 are explained in more detail below.
  • the grouting material 6 is pressed through the filling channels 5 of the assembly elements 4 into the space 8 between the precast concrete slab 2 and the assembly substrate 3.
  • the filling channels 5 of the mounting elements 4 expediently and in the exemplary embodiment have a circular or an essentially circular cross section.
  • the inner diameter d of the filling channels 5 is preferably 25 to 70 mm, in particular 30 to 65 mm, in the exemplary embodiment.
  • a precast concrete slab 2 is equipped with four assembly elements 4, each of which has a filling channel 5 and an adjusting element 7.
  • a mounting element 4 is provided in the area quarter V of each corner of the precast concrete slab 2.
  • An area quarter V corresponds to 25% of the surface of the precast concrete slab 2.
  • a central filling channel 17 for filling or pressing in the grouting material 6 is also arranged in a central central area section A of the concrete slab 2.
  • the area of the central central surface section A is 2 to 5% of the surface of the concrete slab 2. It is within the scope of the invention that the central filling channel 17 is provided centrally in the concrete slab 2 as in the exemplary embodiment.
  • the pressing material 6 filled or pressed in through the filling channels 5 of the assembly elements 4 is a mixture of at least two components.
  • One component corresponds to an organic polymer and one component to an inorganic silicon compound.
  • the organic polymer is a polyisocyanate and that the inorganic silicon compound is an alkali silicate, in particular a water glass.
  • the weight ratio of the two components in the mixture is preferably 1.2: 1 to 1: 1.2 in the exemplary embodiment.
  • the mixture of the two components is pressed as a liquid resin mixture through the filling channels 5 into the space 8 between the precast concrete slab 2 and the mounting substrate 3, and the grouting material 6 hardens in this space, preferably without foaming.
  • the layer thickness of the hardened grouting material in the space 8 is preferably 0.5 to 2 cm, preferably 1 to 2 cm, in the exemplary embodiment. It is within the scope of the invention that the intermediate space 8 between the precast concrete slab 2 and the mounting substrate 3 is pressed completely and over the entire surface with the pressing material 6.
  • a precast concrete slab 2 is formed in an arc shape on two opposite end faces 9.
  • Two concrete slabs can be connected to one another in a form-fitting manner with their curved end face surfaces 9 - curved side surface 9 on curved side surface 9.
  • the end-side surfaces 9 can each have a plurality of Have form-fitting elements for a form-fitting connection with an adjacent concrete slab 2.
  • the corresponding form-fit connections are described below in connection with Fig. 6 explained in more detail.
  • the joint space 14 between two concrete slabs 2 is filled with a joint sealing compound, the joint sealing compound preferably being a two-component system based on at least one sulfide or polysulfide.
  • 2 grouting material channels 16 are present in the underside 15 of a concrete slab on the mounting substrate side.
  • two grouting material channels 16 are provided and a grouting material channel 16 expediently runs and in the exemplary embodiment perpendicular to two opposite side surfaces 9 of the concrete slab 2.
  • a grouting material channel 16 extends from a side face 9 of the concrete slab 2 to the opposite side surface 9 of the concrete slab 2. The two ends of the grouting material channel 16 are preferably designed to be open.
  • the invention is based on the knowledge that with the grouting material channels 16, on the one hand, an effective distribution of the grouting material 6 in the intermediate space 8 is possible.
  • the grouting material channels 16 serve to control the most complete and uniform distribution of the grouting material 6. This applies in particular to the grouting material channels 16, which are preferably open on the side surfaces 9 of the concrete slab 2.
  • a grouting material channel 16 has a depth t of 3 to 10 mm and preferably a width b of 30 to 70 mm.
  • the Fig. 5 shows a particularly preferred embodiment of a mounting element 4 used according to the invention.
  • a mounting element 4 is equipped with an adjusting element 7, which preferably and in the exemplary embodiment completely penetrates the concrete slab 2.
  • the adjusting element 7 has the filling channel 5 for the grouting material 6, the filling channel 5 extending inside the adjusting element 7 over the entire length of the adjusting element 7.
  • the filling channel 5 has an inner diameter d.
  • the adjustment element 7 is used to adjust the height of the concrete slab and for this purpose the adjustment element 7 is preferred and, in the exemplary embodiment, is designed as a screwable adjustment tube 18. When screwing, this adjusting tube 18 can be displaced relative to the remainder of the mounting element 4 in the direction of the longitudinal axis L of the mounting element 4.
  • the adjusting tube 18 is preferred and screwed into an adjusting internal thread 19 provided on the mounting element 4 in the exemplary embodiment.
  • a screw head 21 is provided at the upper end of the adjusting tube 18, which can be actuated with a screwing tool, not shown, so that in this way the adjusting tube 18 is screwed out of the underside 15 of the precast concrete slab 2 or screwed into the underside 15 of the precast concrete slab 2 can be.
  • a height adjustment or a vertical height adjustment of the concrete slab 2 is possible.
  • the adjusting element 7 or the adjusting tube 18 is recommended and in Embodiment placed in the course of the height adjustment of the concrete slab 2 on a plate 20 designed as a counter bearing on the mounting base 3.
  • the grouting material 6 is filled or pressed in at the upper end of an adjusting element 7 through the filling channel 5 of the adjusting element 7 and passes through the filling channel 5 to the space 8 between the concrete slab 2 and the mounting substrate 3 in the embodiment according to Fig. 5
  • the adjusting tube 18 has outlet openings 22 for the grouting material 6 at its lower end, the outlet openings 22 preferably being provided in a side wall of the adjusting tube 18 in the exemplary embodiment.
  • an adjusting element 7 according to a preferred embodiment of the invention can be screwed out of the mounting element 4 or its adjusting internal thread 19 and, according to a particularly recommended embodiment, the adjusting element 7 removed from the concrete slab 2 can then be used. It is also within the scope of the invention that, after the adjustment element 7 has been removed from the assembly element 4, the upper opening of the assembly element 4 is closed with a sealing plug 25, preferably flush with the surface. This plug 25 is in the Fig. 5 been indicated by dash-dotted lines.
  • the assembly elements 4 are also designed as transport anchors for fixing the precast concrete slab 2 to a transport device T.
  • this design of the mounting elements 4 is shown as a transport anchor.
  • the precast concrete slab 2 is connected to the transport device T, which is designed as a crane, via the assembly elements 4.
  • the mounting elements 4 preferably each have a fixation device in the form of a fixation internal thread 23 in the exemplary embodiment.
  • the prefabricated concrete slab 2 is fixed to the transport device T via this fixing internal thread 23.
  • the Fig. 6 shows form-fitting connections between the end-side walls 9 of two precast concrete slabs 2 connected to one another Figure 6a ) shows a positive connection of the end face 9 of two adjacent precast concrete slabs 2 via a groove element 10 and a spring element 11 engaging therein.
  • the joint space 14 between the two precast concrete slabs 2 or between the two form-fit elements is filled with a joint sealing compound 24.
  • This is expediently a multicomponent system based on a polysulfide.
  • the Figure 6b shows a further connection of two end-side surfaces 9, a groove element 10 in the form of a recess being formed on each end-side surface 9. Both opposing groove elements 10 are preferably filled together with the entire joint space 14 by the joint sealing compound 24.
  • This last-mentioned embodiment has proven particularly useful in the context of the invention.
  • tilting of the concrete slabs 2 connected to one another can be avoided and, on the other hand, the connection is characterized by an effective transmission of transverse forces in the event of mechanical loads.
  • Figure 6c shows Figure 6c ) a form-fit connection between the end-face surfaces 9 two adjacent concrete slabs 2 via a dowel chamber connection.
  • a dowel element 12 engages in a dowel chamber 13 and the joint space or the dowel chamber 13 is here also filled or pressed with a joint sealing compound 24.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)
EP19177211.0A 2019-05-29 2019-05-29 Procédé de fabrication d'une surface de circulation, surface de circulation et dalle en béton préfabriqué Active EP3744895B1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114263088A (zh) * 2021-12-30 2022-04-01 中国民航大学 一种水泥混凝土跑道整体换板特种设备及施工方法
WO2022151677A1 (fr) * 2021-01-15 2022-07-21 中铁北京工程局集团有限公司 Procédé de construction de remplacement de dalle intégrale rapide pour dalle de chaussée endommagée dans une construction aéronautique sans arrêt de l'aviation civile

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0224048A2 (fr) * 1985-11-15 1987-06-03 Joh. Chr. Ruhl Bauunternehmung GmbH Elément de pavage autobloquant pour voie double et procédé pour la pose
DE4320118A1 (de) * 1993-06-18 1994-12-22 Henkel Kgaa Offenporige Formteile für den Baustoffbereich
DE19928339A1 (de) * 1999-06-30 2001-01-04 Hilterhaus Karl Heinz Verfahren und Produkt zum hydraulischen Heben, Ausrichten und Festlegen von Flächenkonstruktionen und dgl.
US9347232B1 (en) * 2014-03-10 2016-05-24 Sidney E. Francies, III Lifting and leveling assembly for precast concrete slabs and method
KR101641048B1 (ko) * 2015-08-12 2016-07-20 주식회사 구들택 콘크리트 패널을 이용한 보도 포장장치
KR20160111753A (ko) * 2015-03-17 2016-09-27 콘비젼스 주식회사 프리캐스트 콘크리트 패널 및 이를 이용한 급속 보수와 포장 공법
EP3263787A1 (fr) * 2016-06-29 2018-01-03 BTE Stelcon GmbH Élément structural en béton préfabriqué en particulier plaque en béton préfabriqué

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0224048A2 (fr) * 1985-11-15 1987-06-03 Joh. Chr. Ruhl Bauunternehmung GmbH Elément de pavage autobloquant pour voie double et procédé pour la pose
DE4320118A1 (de) * 1993-06-18 1994-12-22 Henkel Kgaa Offenporige Formteile für den Baustoffbereich
DE19928339A1 (de) * 1999-06-30 2001-01-04 Hilterhaus Karl Heinz Verfahren und Produkt zum hydraulischen Heben, Ausrichten und Festlegen von Flächenkonstruktionen und dgl.
US9347232B1 (en) * 2014-03-10 2016-05-24 Sidney E. Francies, III Lifting and leveling assembly for precast concrete slabs and method
KR20160111753A (ko) * 2015-03-17 2016-09-27 콘비젼스 주식회사 프리캐스트 콘크리트 패널 및 이를 이용한 급속 보수와 포장 공법
KR101641048B1 (ko) * 2015-08-12 2016-07-20 주식회사 구들택 콘크리트 패널을 이용한 보도 포장장치
EP3263787A1 (fr) * 2016-06-29 2018-01-03 BTE Stelcon GmbH Élément structural en béton préfabriqué en particulier plaque en béton préfabriqué

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022151677A1 (fr) * 2021-01-15 2022-07-21 中铁北京工程局集团有限公司 Procédé de construction de remplacement de dalle intégrale rapide pour dalle de chaussée endommagée dans une construction aéronautique sans arrêt de l'aviation civile
CN114263088A (zh) * 2021-12-30 2022-04-01 中国民航大学 一种水泥混凝土跑道整体换板特种设备及施工方法

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