EP2971505A2 - Procédé de production d'un cuvelage doté d'une couche de cloisonnement thermoplastique - Google Patents

Procédé de production d'un cuvelage doté d'une couche de cloisonnement thermoplastique

Info

Publication number
EP2971505A2
EP2971505A2 EP14708043.6A EP14708043A EP2971505A2 EP 2971505 A2 EP2971505 A2 EP 2971505A2 EP 14708043 A EP14708043 A EP 14708043A EP 2971505 A2 EP2971505 A2 EP 2971505A2
Authority
EP
European Patent Office
Prior art keywords
tubbing
dispersion adhesive
adhesive layer
membrane
dispersion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14708043.6A
Other languages
German (de)
English (en)
Inventor
Martin Linnenbrink
Martin Demmig
Josef Von Rotz
Christoph FÄH
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.)
Sika Technology AG
Original Assignee
Sika Technology AG
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 Sika Technology AG filed Critical Sika Technology AG
Priority to EP14708043.6A priority Critical patent/EP2971505A2/fr
Publication of EP2971505A2 publication Critical patent/EP2971505A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • E21D11/086—Methods of making concrete lining segments

Definitions

  • the present invention relates to a process for producing a
  • prefabricated concrete parts are prefabricated in prefabricated concrete plants, temporarily stored until the required concrete strength is achieved, and then placed in the tunnel tube for installation as required. There they are taken up by a Tübbingversetz worn, the so-called “erector” in the protection of the shield of the tunnel boring machine and assembled into a tubbing ring. After the tunnel boring machine has been propelled by hydraulic presses against the recently installed segments, a new tubbing ring is installed in the shield's protection. In this way, the machine "tubbing around tubbing ring” works through the ground, the remaining between tunnel (tubbing ring) and bottom annular gap is continuously filled with mortar to z. B. Prevent subsidence.
  • pressure-sensitive adhesives based on rubber / asphalt mixtures are used for the production of tubbing elements provided with polymer cladding.
  • a disadvantage of these adhesives is the flow occurring over a relatively long period of time, which can lead to delamination of the polymer covering from the concrete surface. If water penetrates into these cavities and the tunnel wall is exposed to temperatures below the freezing point, the tubbing element may subsequently be damaged.
  • a waterproof membrane of ethylene vinyl acetate having various contents of vinyl acetate is bonded to the concrete surface of a tubbing. This is done by pouring the liquid concrete to the membrane, resulting in partial hydrolysis of the vinyl acetate units in the polymer due to the basicity of the liquid concrete. The vinyl alcohol units thus released subsequently cause the membrane to adhere to the concrete.
  • a disadvantage of this procedure is the limitation to the use of the special ethylene-vinyl acetate mixture which does not have suitable sealing properties for all applications.
  • the object of the present invention is therefore to improve the production of tubbings in such a way that they are protected and sealed against moisture which is located on the outside of the tubbing ring and at the same time ensure a rapid production process, in particular with short intermediate storage times.
  • the core of the invention is a method for producing a tubbing made of concrete for covering a tunnel, in particular a traffic tunnel, wherein the tubbing 1 has a convex-curved outer surface 2 and the outer surface 2 opposite concave-curved inner surface 3 comprising the steps a) laying a membrane 4 having a
  • Dispersion adhesive layer 5 and a thermoplastic
  • the tubbing has a ring segment-shaped structure with a concavely curved inner surface, which is directed to the tunnel interior in the installed state, and an opposite, convexly curved outer surface, which is directed to the surrounding soil in the installed state.
  • Connected laterally these two surfaces are four further surfaces, two longitudinal side surfaces which rest in the installed state on the corresponding longitudinal side surfaces of the adjacent tubbing of the same tubbing ring, and two end faces which rest in the installed state on the corresponding end faces of the adjacent tubbing of an adjacent tubbing ring.
  • the method can be advantageously further developed by the membrane is first attached to the outer surface, preferably glued, that the
  • Membrane has at least one over the convex outer surface of the tubing protruding edge, and the dispersion adhesive layer
  • tubbings produced in the method according to the invention no separate second operation is required for the final sealing of the concave-curved outer surfaces of the tubbings facing the exterior of the tunnel. Also eliminates a possible second tubbing ring. Furthermore, tubbings with smaller wall thicknesses can be used / manufactured, as they are far superior to conventional tubbings in terms of waterproofness and resistance to corrosive groundwater. Both leads to a reduction of the space requirement of the tunnel wall and thereby to an interior gain and to a reduction of the required building material. Furthermore, the tubbings produced according to the invention permit the use of alternative, less watertight and less corrosion-resistant types of concrete. Furthermore, segmental rings made of segments, which were produced in the process according to the invention, have excellent rear-run safety and tightness.
  • FIG. 1 shows a lateral cross section through a tubbing.
  • FIG. 2 shows a further lateral cross section through a tubbing.
  • FIGS. 3 and 4 show steps a) and b) of the method.
  • FIG. 1 shows a lateral cross section through a tubing produced according to the invention.
  • the tubbing 1 is provided on its convex-curved outer surface 2 with a membrane 4.
  • the membrane comprises a dispersion adhesive layer 5 and a thermoplastic Schott layer 6, the dispersion adhesive layer 5 facing the tubbing 1.
  • the membrane is arranged over a partial area preferably on at least one, particularly preferably all sides of the outer side surfaces (longitudinal side surfaces 7 and front side surfaces 8) facing the outer surface.
  • the two longitudinal side surfaces 7 are shown.
  • the membrane may extend over the entire outside surfaces 7 and 8 as well.
  • an excellent bond of the dispersion adhesive layer, and thus the membrane ensured with the tubbing and a high rear safety.
  • the enlargement of the contact surface of the contacting membranes in relation to, for example, a membrane which lacks an arrangement on all sides of the outer side facing the outer surface, achieves a higher sealing effect at joints between two segments.
  • a reversibly softenable dispersion adhesive thus allows an overlapping sealing of the outer surface and the outer side surfaces of the tubbing. This seal can be completed very quickly, because after fixing the membrane on the Convex outer surface must be maintained only a short time until the adhesive has solidified sufficiently. Subsequently, the sealing of the outer side surfaces can be carried out, wherein, if necessary, the dispersion adhesive in the region of the edge can be remelted by supplying heat.
  • the protruding edge of the membrane can also be glued to the membrane of an adjacent tubbing, which also leads to an improved sealing effect.
  • the dispersion adhesive layer is fully bonded to the outer surface 2, in particular glued, which leads to an improvement in the rear safety.
  • thermoplastic Schott layer 6 In order to be as suitable as a thermoplastic Schott layer 6, it should be as waterproof as possible and even under prolonged influence of water or moisture, do not decompose or be mechanically damaged. In particular, such materials are suitable as the thermoplastic Schott layer, as they are already used in the prior art for sealing purposes in building construction and civil engineering.
  • thermoplastic Schott layer is made of a material having a softening point of more than 110 ° C, preferably between 140 ° C and 170 ° C.
  • the thermoplastic Schott layer should advantageously have an at least low degree of elasticity, for example, caused by differences in temperature caused by expansion differences between the thermoplastic Schott layer and tubbing To be able to bridge stresses without damaging or cracking the thermoplastic Schott layer and impairing the sealing function of the Schott layer.
  • the thermoplastic bulkhead preferably comprises a material selected from the group consisting of high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), polyethylene (PE), polypropylene (PP), Polyethylene terephthalate (PET), polystyrene (PS), polyvinyl chloride (PVC), polyamides (PA), ethylene vinyl acetate (EVA), chlorosulfonated polyethylene and thermoplastic polyolefins (TPO).
  • HDPE high density polyethylene
  • MDPE medium density polyethylene
  • LDPE low density polyethylene
  • PE polyethylene
  • PP polypropylene
  • PET Polyethylene terephthalate
  • PS polystyrene
  • PVC polyvinyl chloride
  • PA polyamides
  • EVA ethylene vinyl acetate
  • TPO thermoplastic polyolefins
  • thermoplastic Schott layer contains polyvinyl chloride (PVC).
  • thermoplastic Schott layer consists of more than 50 wt .-%, particularly preferably more than 80 wt .-%, of the aforementioned materials.
  • Processing agents such as fillers, UV and heat stabilizers, plasticizers, lubricants, biocides, flame retardants, antioxidants, pigments, e.g.
  • Titanium dioxide or carbon black, and dyes are referred to as films of the particular material, i. that films made of PVC and these additives are referred to as PVC films or flexible PVC films, even though they are not 100% PVC or
  • Soft PVC exist.
  • a flexible polyvinyl chloride-based thermoplastic Schott which a customary for the field of waterproofing of buildings PVC film
  • PVC films contain in particular plasticizers, typically phthalate plasticizers.
  • plasticizers typically phthalate plasticizers.
  • the use of rigid PVC films would lead to the fact that when bending or bending of the film, as they occur during application of the film but also in use, for example by temperature fluctuations, mechanical loads, such as when walking on or driving on the film break or at least tear, whereby the sealing function could not be guaranteed.
  • a particularly suitable PVC film is that from Sika AG,
  • thermoplastic Schott layer advantageously has a layer thickness in the millimeter range, typically between 0.2 and 15 mm, preferably between 1 and 2 mm.
  • thermoplastic Schott layer advantageously has a layer thickness in the millimeter range, typically between 0.2 and 15 mm, preferably between 1 and 2 mm.
  • a membrane 4 is made by preferably applying the dispersion adhesive composition to the thermoplastic bulkhead layer at room temperature and venting or drying by applying heat to form the dispersion adhesive layer 5. The application is preferably carried out by knife coating, spraying,
  • a dispersion adhesive layer 5 is obtained, which is tack-free at 25 ° C.
  • a membrane is obtained which can be lengthened, cut off, rolled up or processed further directly as required.
  • the tubbing preferably has a the outer side surfaces (7, 8) circumferential sealing groove 10, in which a sealing body 1 1 is arranged, as can be seen in Figure 2.
  • the sealing groove is formed in the tubbing and is located therein, typically pressed, a sealing body.
  • the sealing body 1 1 is typically a hollow body.
  • materials are suitable, which are known as sealing materials for sealing rings and / or water-swellable materials.
  • water-swellable materials in the present document means materials which on contact with water increase their volume to a multiple, typically between 200 and 1000% of the original volume
  • certain water-swellable materials can also react chemically with water of such water-swellable materials are polyurethane-based bulking agents, in particular silane-modified polymers which cure by moisture into an elastic product
  • polyurethane-based bulking agents in particular silane-modified polymers which cure by moisture into an elastic product
  • silane-modified polymers which cure by moisture into an elastic product
  • Another example of such swelling agents is bentonite-butyl rubbers or the acrylic acid grouped together under the name “superabsorbent polymers” (SAP) -based polymers, typically copolymers of acrylic acid and sodium acrylate, for example from BASF SE, Germany.
  • SAP superabsorbent polymers
  • the sealing body 1 1 consists of ethylene-propylene-diene rubber (EPDM).
  • EPDM ethylene-propylene-diene rubber
  • the tubbing preferably has a sealing coating 12 between the outer surface 2 and the hot-melt adhesive layer 5, as can be seen in FIG. 2 and FIG.
  • the sealing coating is selected from the group consisting of methacrylate resin, polyester resin, epoxy resin, polyurethane, preferably in the form of a dispersion adhesive, and polyurea. Particularly preferred as a sealing coating is epoxy resin. If the coating consists of a dispersion adhesive, it may be the same adhesive that forms the dispersion adhesive layer 5 or a dispersion adhesive different therefrom.
  • Such a sealing coating 12 is advantageous in that thereby the tubbing is protected from the ingress of moisture. This further enhances the sealing effect of the tubbing. Further, in the manufacture of the tubbing, a large loss of moisture during the curing of the green body can be prevented.
  • the sealing coating 12 is typically applied by spraying or brushing on the tubbing. Further, it is advantageous that the sealing coating 12 is at least partially disposed on all outer side surfaces 7, 8, in particular on the area between the outer surface 2 and the seal groove 10. As sealing body 1 1 are all materials in question, which are suitable, the passage of liquids, especially water, to reduce or prevent.
  • the sealing body is made of a thermoplastic or a thermoplastic elastomer.
  • Thermoplastic elastomers have the advantage that the sealing body by a good elasticity against horizontal and vertical displacements, in particular shifts due to mechanical stresses in the building, features.
  • a good elasticity of the seal body prevents cracking or detachment of the seal body and thus a failure of the seal.
  • thermoplastic elastomers in this document are understood as meaning plastics which combine the mechanical properties of vulcanized elastomers with the processability of thermoplastics.
  • thermoplastic elastomers are block copolymers with hard and soft segments or so-called polymer alloys with correspondingly thermoplastic and elastomeric constituents.
  • Further advantageous materials for sealing bodies are materials which are selected from the group consisting of acrylate compounds, polyurethane polymers, silane-terminated polymers and polyolefins.
  • room temperature is understood in the present document, a temperature of 25 ° C.
  • the crossover Temperature often referred to as the yield point, represents the temperature at which the curves of the loss modulus and storage modulus, measured by means of DTMA (Dynamic Mechanical Thermal Analysis), intersect DTMA measurements using the following DTMA measurement parameters:
  • Stamp 25 mm plate (smooth surface) Measuring gap: (Sample thickness) l mnn
  • Amplitude gamma 1% (corresponds to 0.8 mrad)
  • the dispersion adhesive layer 5 is a non-reactive dispersion adhesive composition.
  • non-reactive dispersion adhesive composition As a "non-reactive" dispersion adhesive composition, this document is directed to a dispersion adhesive composition that does not have polymers that react chemically with each other or with air at room temperature Such non-reactive dispersion adhesive compositions have, in particular, no isocyanate or alkoxysilane or epoxy or (meth) acrylate groups Thus, the non-reactive dispersion adhesive composition contains, in particular, no epoxides, in particular no epoxy-solid resins.
  • non-reactive dispersion adhesive compositions are present as dispersions.
  • a "dispersion” is a heterogeneous mixture of at least two substances which do not dissolve or hardly dissolve or chemically combine with one another, and have two phases
  • such dispersions are heterogeneous mixtures of a solid (suspension) or a liquid (Emulsion) understood in another liquid.
  • the liquid phase of the dispersion is preferably a solvent, in particular an organic solvent with a boiling point
  • the non-reactive dispersion adhesive composition is preferably an aqueous dispersion.
  • the dispersion adhesive composition has a liquid phase and a solid phase.
  • the composition is in the form of a dispersion, it goes without saying that, in this connection, such a solvent is not able to completely dissolve the solid phase of the solid phase or the second liquid.
  • the liquid phase is water.
  • Polyesterpolyol-based polyurethanes are preferably prepared from the reaction of polyisocyanates and preferably polyester polyols solid at room temperature.
  • Polyester polyols in turn are obtained by polycondensation of hydroxycarboxylic acids or the polycondensation of aliphatic and / or aromatic polycarboxylic acids with dihydric or polyhydric alcohols, preferably short-chain polyols, preferably diols or triols having a molecular weight of less than 250 g / mol, in particular less than 150 g / mol, or polyether polyols and dicarboxylic acids or dicarboxylic anhydrides prepared in such a suitable stoichiometry that the reaction products have hydroxyl groups, and thus represent polyester polyols.
  • Particularly preferred polyester polyols are condenser products of ethylene glycol, diethylene glycol,
  • Pentanediol 3-methyl-1, 5-hexanediol, 1, 6-hexanediol, 1, 8-octanediol, 1, 10-decanediol, 1, 12-dodecanediol, glycerol, 1, 1, 1-trimethylolpropane with organic di- ors Tricarboxylic acids, especially dicarboxylic acids, or their anhydrides or esters such as, for example, succinic, glutaric, adipic, trimethyladipic, suberic, azelaic, sebacic, maleic, fumaric, phthalic, phthalic, isophthalic, terephthalic, trimellitic and trimellitic anhydrides.
  • Tricarboxylic acids especially dicarboxylic acids, or their anhydrides or esters such as, for example, succinic, glutaric, adipic, trimethyladipic, suberic, azelaic, sebacic, maleic
  • Particularly suitable monomers for the preparation of copolymers are selected from the group consisting of (meth) acrylic acid,
  • Such copolymers are especially prepared by free radical emulsion or solvent polymerization. Due to the reaction mechanism, the polymerization takes place via the double bonds. Therefore, the copolymers also no longer have (meth) acrylic acid, (meth) acrylic ester or (meth) acrylamide groups.
  • the non-reactive dispersion adhesive composition is or contains a polyurethane dispersion, in particular polyester dispersion based on a polyurethane polyol.
  • a polyurethane dispersion in particular polyester dispersion based on a polyurethane polyol.
  • the proportion of polyesterpolyol-based polyurethane and copolymer obtained from the radical polymerization of at least two monomers having at least one, preferably one, unsaturated C C double bond in the weight of the total non-reactive dispersion adhesive composition preferably between 30 and 70 wt .-%, in particular between 50 and 40% by weight.
  • the non-reactive dispersion adhesive composition preferably has a liquid phase and a solid phase.
  • the solid phase comprises a polymer which is solid at room temperature. It is further preferred that the solid of the non-reactive
  • Dispersion adhesive composition has a melting temperature of 60-120 ° C, in particular from 70-90 ° C.
  • the non-reactive dispersion adhesive composition is
  • the water content by weight of the entire non-reactive dispersion adhesive composition is preferably from 30 to 70% by weight, more preferably from 40 to 60% by weight.
  • the solid or second liquid phase and the liquid phase are prepared in a conventional manner in the production. Particular preference is given to an in situ preparation, ie precursors which lead to the solid phase or second liquid phase are added to the liquid phase with intensive stirring and reacted with one another. A very suitable method for this is the emulsion polymerization of
  • Dispersions mix dispersions present together.
  • non-reactive dispersion adhesive composition can have further constituents.
  • Particularly suitable as further constituents are constituents which are selected from the group comprising plasticizers, adhesion promoters, UV absorbers, UV and heat stabilizers, optical brighteners, fungicides, pigments, dyes, fillers and drying agents.
  • the dispersion adhesive layer typically has one
  • Application weight of 50 to 1000 g / m 2 in particular from 200 to 800 g / m 2 , preferably 200 to 400 g / m 2 , on.
  • Hotmelt adhesive layer is preferably between 50 and 500 microns, in particular between 100 and 300 microns.
  • the non-reactive dispersion adhesive composition can be applied over the entire surface, in a raster or with a special pattern. Subsequently, the non-reactive dispersion adhesive composition is flashed off. It will be one with a ventilated one
  • Dispersion adhesive layer 5 provided membrane 4 is formed, which is tack-free at room temperature.
  • the venting causes the solvent or water to volatilize.
  • the so-called flash off time i. that time which elapses from application of the non-reactive dispersion adhesive composition until the composition is dry, i. is tack-free, is preferably 10 to 240 minutes, especially 30 to 90 minutes.
  • the bleeding can be accelerated by a bleeding agent.
  • a blower in particular an air blower, preferably with heated air, or an IR radiation source can serve as the venting means.
  • the venting can be carried out at room temperature or at slightly elevated temperature, in particular at a temperature below 60 ° C.
  • the thus prepared dispersion-coated with adhesive dispersion membrane (4) can now be cut to length as required, cut off, rolled up or further processed directly.
  • the rolls with the coated membranes can now be stored or transported as needed.
  • the membrane is preferably produced in one
  • the coated membrane arrives at the construction site preferably in the form of coated membrane from a roll used.
  • This is advantageous in that venting does not have to be done on-site, which, if the dispersion adhesive composition is solvent-based, is workhygienic, safety and ecotoxicologically advantageous because the
  • Evaporating solvents can be trapped in a film factory easier and more efficient and thus prevents the solvents get into the environment or can ignite. In addition, there is no need to wait at the construction site until the dispersion composition has evaporated, thus allowing a much faster work on the construction site. Due to the property that the flashed dispersion adhesive composition is tack-free, the coated film can be easily rolled up and stored as a roll to save space and transport and rewind if necessary. Preferably, individual layers on the roll do not stick together, i. Preferably, in the, especially long, storage does not block the role. However, in certain-not preferred cases, blocking may be indicated by hanging up
  • Release paper in particular a siliconized release paper, on the coated membrane before rolling completely prevent.
  • the membrane is on the surface of the tubbing due to the tackiness of the flashed dispersion adhesive composition
  • the minimum force necessary for displacement can be adjusted on the one hand with the choice of additives (for example fillers) or the film thickness or on the other hand the surface structure of the flashed dispersion adhesive composition can decisively influence the static friction.
  • the static friction can be increased by a rough adhesive surface, which is, for example, the result of a non-uniform adhesive application or a raster-moderate adhesive application.
  • the method according to the invention comprises the step a) placing a membrane 4 having a
  • Tubing 1 faces.
  • the membrane 4 is placed on all the outer surface 2 facing sides of the outer side surfaces 7, 8 of the tubbing.
  • step b) of the process heat is supplied, so that the dispersion adhesive layer 5 melts.
  • step b) heat is applied such that the temperature of the hotmelt adhesive layer 5 does not exceed a temperature which is at least 20 ° C, preferably at least 30 ° C, more preferably at least 40 ° C below the melting point, i. below the softening point, the dispersion adhesive layer.
  • the feeding of the heat in step b) may preferably take place during the
  • step b) Laying the membrane 4 in step a), in particular in the gap 13 formed during the laying between the dispersion adhesive layer 5 and the tubbing 1, take place.
  • step b) the feeding of
  • Dispersion adhesive layer 5 transferred.
  • the membrane 4 is deep-drawn after gluing the outer surface 2 by re-applying heat at least partially over the outer side surfaces.
  • the supply of heat can be done by hot air, flame, induction or dielectric heating.
  • the heat is preferably supplied in such a way that the heat does not exert too great a negative or negative thermal stress on the dispersion adhesive layer 5, the thermoplastic bulkhead layer 6 or the outer surface 2, or the sides of the outer side surfaces 7, 8 facing the outer surface 7, 8 of the tubbing.
  • the dispersion adhesive composition melts, the dispersion adhesive composition becomes at least partially flowable, thereby ensuring intimate contact with the surface of the tubbing.
  • the contact of the dispersion adhesive composition with the surface of the tubbings can be improved with pressure, which is applied for example via a roller, which is preferred in the context of the invention.
  • the heating of the adhesive is carried out in particular to a
  • Adhesive temperature of 60 to 120 ° C, preferably 70 to 90 ° C.
  • step c) downstream of the step c) is the
  • Dispersion adhesive layer 5 is cooled to form an adhesive bond between the membrane 4 and the tubbing 1. This cooling is done
  • the tubbing is to be loaded or committed already after a particularly short time to accelerate the cooling. This can be done, for example, by cooling by a cooling means, for example by a blower, in particular an air blower, the membrane or the tubbing.
  • a cooling means for example by a blower, in particular an air blower, the membrane or the tubbing.
  • Dispersion adhesive layer 5 in step b) can be carried out such that
  • the membrane 4 is placed only on the outer surface 2 and the steps b) and c) are carried out, and thereafter
  • steps b) and c) are performed.
  • the use of a non-reactive dispersion adhesive composition is particularly advantageous because it can be repeatedly melted and cooled again and still the adhesive bond between the membrane and the tubbing is guaranteed. For example, if, during the joining of the outer surface, areas of the dispersion adhesive layer are melted when heat is applied, which in the further step come to lie on a side of the outer side faces 7, 8 facing the outer surface and are connected thereto.
  • Outside surfaces 7, 8 is applied to two separate membranes. However, these must be so interconnected, in particular welded or glued, that the waterproofness is guaranteed.
  • outside surfaces 7, 8 is placed to one and the same membrane acts. Further, it may be advantageous if before and / or during the
  • FIGS. 3 and 4 show steps a) and b) of the method.
  • FIG. 3 shows a first embodiment.
  • the membrane 4 is placed on the outer surface 2 of the tubbing, the dispersion adhesive layer 5 facing the tubbing 1. Especially when the dispersion adhesive layer is tack-free
  • Dispersion adhesive layer is this can be moved on the outer surface, whereby, for example, a final positioning of the membrane is made possible.
  • FIG. 3 shows a variant of step b).
  • the supply of heat in step b) takes place during the laying of the
  • the dispersion adhesive composition melts. As a result, the dispersion adhesive composition becomes soft or slightly sticky and can bond to the tubbing. In the subsequent step c), the dispersion adhesive composition is cooled again, whereby an adhesive bond between the membrane and the tubbing takes place.
  • FIG. 4 shows a further embodiment.
  • Dispersion adhesive layer 5 transferred. As a result of the heat, the dispersion adhesive layer 5 is melted. As a result, the dispersion adhesive composition becomes at least partially fluid and is capable of melting
  • the dispersion adhesive composition is cooled again, whereby an adhesive bond between the membrane and tubbing takes place.
  • the tubbing is preferably suitable for use in tunnels with a diameter of 0.5-50 m.
  • Another aspect of the invention relates to a building, in particular a tunnel, comprising a tubbing according to the invention.
  • the coating weight of SikaTherm®-4100 was 250 g / m 2 .
  • SikaTherm®-4100 has a crossover temperature, determined by DTMA according to the method as described above, of about 1 10 ° C.
  • the resulting membrane was heated at 80 ° C for 10 minutes in a Mathys oven. Subsequently, the coated membranes were applied by applying heat between the plate and membrane (Leister Fön (Electron), 500 ° C) on an optionally pretreated garden plate (conventional concrete walkway slab).
  • the garden plate was also coated with SikaTherm®-4100 using a roller (application weight 250 g / m 2 ), and flashed for 30 minutes at 23 ° C.
  • the garden plate was coated as in the first sample but dried at 70 ° C for 10 minutes.
  • the dispersion adhesive was applied to the plate and membrane with a toothed spatula. The plate and membrane were then dried at 70 ° C for 30 min.
  • the fourth sample was prepared analogously to the first sample, but without the dispersion adhesive being applied to the garden plate.
  • the fifth sample was prepared analogously to the second sample. However, the bonding was carried out by applying the heat to the side of the membrane facing away from the adhesive layer. After cooling each sample for 1-2 minutes, very good strength could be observed by hand.
  • the peel and adhesive in each case 90 ° peel angle was determined in addition, for which the specimens were initially stored for 7 days at 23 ° C.
  • the peeling pull was determined on the basis of DIN EN 1372.
  • the membrane was glued over the entire surface using heat on a garden plate with the dimensions 20x40 cm. Subsequently, parallel to the width with a carpet knife in each case a strip with the

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  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)

Abstract

Les caractéristiques essentielles de l'invention concernent un procédé de production d'un cuvelage en béton permettant d'habiller un tunnel, notamment un tunnel de circulation, le cuvelage 1 présentant une surface extérieure 2 de courbure convexe et une surface interne 3 de courbure concave opposée à la surface externe 2, comprenant les étapes consistant à a) appliquer une membrane 4 présentant une couche de colle à dispersion 5 et une couche de cloisonnement thermoplastique 6 sur la surface extérieure 2, et à rabattre la membrane au moins d'un côté des surfaces latérales externes (7, 8) du cuvelage, ledit au moins un côté étant tourné vers la surface extérieure 2, la couche de colle à dispersion 5 étant tournée vers le cuvelage; b) assurer l'alimentation en chaleur accompagnée de la fusion de la couche de colle à dispersion 5; c) assurer le refroidissement de la couche de colle à dispersion 5 accompagné de la formation d'un assemblage par collage entre la membrane 4 et le cuvelage 1.
EP14708043.6A 2013-03-12 2014-03-06 Procédé de production d'un cuvelage doté d'une couche de cloisonnement thermoplastique Withdrawn EP2971505A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14708043.6A EP2971505A2 (fr) 2013-03-12 2014-03-06 Procédé de production d'un cuvelage doté d'une couche de cloisonnement thermoplastique

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP13158804 2013-03-12
CH6082013 2013-03-13
EP14708043.6A EP2971505A2 (fr) 2013-03-12 2014-03-06 Procédé de production d'un cuvelage doté d'une couche de cloisonnement thermoplastique
PCT/EP2014/054320 WO2014139853A2 (fr) 2013-03-12 2014-03-06 Procédé de production d'un cuvelage doté d'une couche de cloisonnement thermoplastique

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EP2971505A2 true EP2971505A2 (fr) 2016-01-20

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EP14708043.6A Withdrawn EP2971505A2 (fr) 2013-03-12 2014-03-06 Procédé de production d'un cuvelage doté d'une couche de cloisonnement thermoplastique

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Country Link
US (1) US20160010456A1 (fr)
EP (1) EP2971505A2 (fr)
JP (1) JP2016510094A (fr)
CN (1) CN105074130A (fr)
WO (1) WO2014139853A2 (fr)

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Publication number Priority date Publication date Assignee Title
FR3063672B1 (fr) * 2017-03-13 2022-07-01 Arkema France Procede de fabrication de pieces en composite polymere thermoplastique, et objet obtenu par ledit procede
CN114508239B (zh) * 2022-02-17 2023-06-16 深圳市欣光辉科技有限公司 全自动卷材压膜机

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JPS60217280A (ja) * 1984-04-11 1985-10-30 Ube Ind Ltd 接着工法
JPH03212600A (ja) 1990-01-17 1991-09-18 Uchida Yoshikazu 防食層を設けたセグメント
JP4511758B2 (ja) * 2001-04-02 2010-07-28 株式会社クラレ 土木用遮水シート
EP2042687B1 (fr) * 2006-06-07 2018-02-21 Kuraray Co., Ltd. Procédé de préparation pour feuille imperméable à l'eau destinée à un tunnel et son utlisation
DE102006031832A1 (de) * 2006-07-07 2008-01-17 Bilfinger Berger Ag Bauteil und ein Verfahren zur Herstellung eines Bauteils
DE102006044226A1 (de) * 2006-09-15 2008-03-27 Hildener Filz Produktion Gmbh & Co. Kg Abdichtungsbahn
CN201818813U (zh) * 2010-10-20 2011-05-04 苏州德兰能源科技有限公司 一种截止阀
EP2466031A1 (fr) * 2010-12-17 2012-06-20 Sika Technology AG Utilisation de feuilles d'étanchéité en chlorure de polyvinyle revêtues de matière collante en dispersion et destinées à l'étanchéification
EP2466030A1 (fr) * 2010-12-17 2012-06-20 Sika Technology AG Utilisation de feuilles d'étanchéité en polyoléfine revêtues de matière collante thermofusible non réactive et destinées à l'étanchéification

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See references of WO2014139853A2 *

Also Published As

Publication number Publication date
WO2014139853A3 (fr) 2015-04-09
WO2014139853A2 (fr) 2014-09-18
JP2016510094A (ja) 2016-04-04
CN105074130A (zh) 2015-11-18
US20160010456A1 (en) 2016-01-14

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