DE102016100455A1 - Textile reinforcement and its manufacture - Google Patents

Abstract

The invention relates to a method and a device for producing a textile reinforcement for a concrete component from polymer yarns free yarn (7) m, comprising a laying device (6), wherein a positioning device or a laying robot (19) at least two-dimensionally relative to a yarn delivery device (18) is movably arranged, which emits the yarn (7), wherein the laying device (6) for forming a tensioning fabric (14) of polymeric binders free yarn (7) within a base frame (9) is formed, wherein the base frame ( 9) yarn holding devices (8) in the region of outer edges of the base frame (9) and / or recesses (4), wherein the Garnhalteeinrichtungen (8) at the same time deflection points of the yarn (7). The invention also encompasses finished parts made of textile concrete, wherein a previously formed clamping structure (14) is arranged in a formwork (16) as a reinforcement, the formwork (16) is poured and shaken with fine concrete (21).

Description

The invention further relates to a method and a device for laying textile reinforcements for concrete components and textile reinforcements obtained thereby. The device for producing a textile reinforcement for a concrete component has at least one laying device in which at least one positioning device or at least one laying robot is arranged so as to be relatively movable relative to at least one yarn dispensing device,

Textile concrete or textile-reinforced concrete is a composite material from the matrix material concrete and a textile fabric, such as a scrim, a fabric or a knit, which improves the mechanical strength of especially thin-walled concrete parts as a reinforcement.

In particular, since 2004, there has been a great deal of research into the subject of textile concrete, in which the traditional steel reinforcement is replaced by a textile. This is also reflected in the printed prior art. This is how the publication deals DE 100 19 824 A1 with a manufacturing process for building materials and components using fibrous materials, in particular natural fibers are used. The publication DE 102 32 142 A1 describes a method for the production of textile-reinforced concrete sheaths, as they can be used for example in the water and sewage sector for the enclosure of plastic pipes or plastic containers.

From the publication DE 10 2004 027 739 A1 the description of a component in wood / concrete composite construction for construction, in particular columns, masts, columns, beams or pipelines can be seen. For an exemplary embodiment presented there, glass fiber scrims with a basis weight of 180 g / m ² and a fineness of 640 tex were used. It was pulled through a funnel placed above the device and filled with fine concrete. The concrete had a w / c value of 0.33 and consisted of two parts blast-furnace cement, one part pozzolana and three parts sand with maximum grain 0.2. After four textile layers a reinforcement layer of about 7 mm was reached. She was smoothed by a scraper resting on discs. The wood was treated with a primer before winding.

The publication DE 10 2005 048 190 A1 provides information on the coating in reinforced composite materials, which can be used, for example, in fiber-reinforced high-performance concrete composites.

Through the pamphlets DE 10 2007 015 838 A1 and DE 10 2007 031 935 A1 The experts are experiencing a component with functional fibers and methods for its production.

The publication DE 10 2007 038 931 B4 however, describes Fadenlagennähwirkstoffe and shows in one embodiment, the production of an open grid structure with the geometry of a truncated cone surface. These are Fadenlagennähwirkstoffe with contoured warp yarn, which are preferably used for the production of spatial reinforcement structures for plastic and concrete components. From one of these open lattice structures, for example, a 3D reinforcing structure in the form of a thread flank can be formed and introduced into the concrete of a pipe wall. The endless warp threads in this embodiment are metered and fed in the lengths required at each location to form the desired area. However, all these solutions are not suitable for flat components, as they are regularly produced in a concrete plant. At least, however, they do not meet the requirements for permanent strength and temperature resistance of a reinforcement.

First applications in the form of sheet-like components, such. B. facade panels already exist on the market. So far, the textile fabrics, especially also scrim, completely prefabricated by a textile manufacturer, to then be further processed as reinforcement in the concrete plant to textile concrete components. Rovings made of glass, carbon or basalt are used for the production of the textile fabric. After the production of the textile fabric (scrim), this is transported to the precast plants.

The available on the market textile scrim for this application, usually 1.20 or 2.50 meters wide and up to 5 meters long as a plate or roll with z. 80 meters roll length, are available from carbon, AR glass or basalt fiber materials.

If a prefabricated wall element is to be reinforced with these prefabricated textile layers or other fabrics in the concrete plant, these are to be cut and overlapped for power transmission, referred to as lap length. The demand for textile material is very high compared to the surface actually used in the component because of the extensive sections. For example, for 12 m ² prefabricated wall element about 18 m ² fabric (scrim) is needed. Together with the waste at the textile manufacturer (about 10 percent) there are a total of 20 m ² .

So far, without the material would be fully established in practice at all, from the so-called carbon filament yarn or other suitable for use in textile high performance filament yarns a textile fabric z. B. in the form of a Geleges or fabric and then used as a necessary reinforcement in textile concrete. This is done z. B. in a precast plant, the production of the concrete component with textile reinforcement. The material must be prefabricated in one process step, where very high waste is generated. The blend refers to the yarn (eg carbon, AR glass or basalt filament yarn, also referred to as roving) as well as the high quality coating that is on the yarn.

The coating is necessary and important for the internal bonding of the rovings (composite of individual filaments) and the outer bond to the concrete matrix, but at the same time generally undesirable for use in the present field of technology, at least insofar as it can lead to Finally, the component has no lasting strength and sufficient temperature resistance. This is because the coating melts at higher temperatures and then becomes an adverse "lubricant" that reduces the strength of the component.

The fabric, since it is limited in width, must be overlapped to achieve the necessary overlap length, which also results in increased material usage. For positioning in the concrete part spacers must be used, the introduction of which must also be done in advance in a process step. Furthermore, elements to prevent the floating of the reinforcement during concreting and shaking must be used.

However, it is disadvantageous that the textile fabrics obtainable on the market receive a predefined shape, material combination and quantity (eg fibers per m ² ) and this is thus uniformly predetermined for the entire surface. However, the precast concrete parts required in practice are characterized by the fact that they must be very different in size, shape (recesses such as doors, windows) and reinforcement arrangement (consideration of local load transfer). Furthermore, the thus prepared fabric would have to be impregnated with synthetic resin in order to have sufficient inherent rigidity and thus to be manageable at all.

By prefabrication of textile fabrics, especially in standard dimensions due to the inflexible textile manufacturing process, and their subsequent adaptation to the concrete components, on the one hand, a lot of material is wasted. Thus, in the example above, 20 m ^{2 is processed} instead of the 12 m ² actually required. In addition, the workload is enormously high, since several process steps are required, starting with the production of the textile fabric, followed by the assembly. Furthermore, in the conventional method, partial fixtures such as spacers are necessary to hold the reinforcement in its intended position. Also anchoring points of the reinforcement in concrete such as loops are very difficult to achieve. Even if the textile fabric has these, they do not necessarily reach the intended or optimum position in the concrete component.

The publication EP 2 666 922 A1 shows such a concrete structural element with a fiber-reinforcement structure, which has arranged in a first direction and in a second direction fiber strands forming a grid arrangement with the fiber strands interconnecting crossing points. The fiber reinforcement structure is embedded in the mineral body, which consists of a filler and a binder. However, as the grid arrangement is available, the document is nothing to be found. [0014] The conclusion can be drawn that it is intended to form the fiber strands as a fiber web, which is connected at the points of intersection for example cohesively or in another way such as by twine or the like, around the rovings, which are preferably for forming the fiber strands used to temporarily fix. It is also possible to bring the fiber strands into a weave, that is, to pass over and over one another at points of intersection. There is no way around an external production. This is also confirmed by paragraph [0030], according to which the fiber reinforcement structure provided as described above is inserted and positioned in workable concrete for the production of the concrete component. Due to its rigidity, it can be worked into the concrete like a structural steel mat and remains in it.

Thus, the problems with the inflexible design of the reinforcement in the concrete component and also the excessive material consumption are not solved. In addition, it is provided that the fiber strands have a plastic content, so that according to paragraph. [009] the glass fibers of the fiber strand are individually or jointly surrounded by a plastic layer which prevents direct contact between each glass fiber and the concrete. According to paragraph [0019], the proportion of plastic even plasticises when heated, which is considered to be advantageous for bonding at the points of intersection. In fact, however, this circumstance, without the cited document drawing this conclusion, brings with it a considerable strength problem as soon as the concrete component is exposed to an elevated temperature, because then the bond between the reinforcement and concrete fades, as well as the bond between the possibly to the concrete Tailored fiber and the fibers inside the roving. A strength test at a temperature of 500 ° C is just not thinkable.

This is how a whole series of solutions are created. By way of example, the publications WO 2008/07986 A1 and DE 10 2005 055 770 A1 without mentioning the content at this point.

Even though those skilled in the search for a reinforcement for a concrete component have little reason to resort to solutions in the production of fiber-reinforced plastic parts, because the techniques are fundamentally incompatible in practice, state of the art from this area should nevertheless be mentioned for the sake of completeness. This is how the document goes DE 10 2005 034 400 A1 a solution that attempts to create a load-oriented fiber layer and lay the fiber strand along any trajectory (Tailored Fiber Placement - TFP). In order to remain there, he is fixed on a supporting layer with the aid of a stitching thread. A stitching thread is undesirable in the concrete component, a support layer can not even be embedded in concrete without serious losses in the mechanical stability of the concrete component. Such a solution is therefore not to be considered.

The publication JP 2000 199 151 A describes a Garnablage for lamination, the yarn is placed around marginal needles and immediately pushed after filing. For this purpose, it is necessary to lay the yarn loose and it is therefore not possible to span longer distances between the needles cantilevered. Such a scrim would not be able to be positioned at the desired location in the profile in a larger area concrete part. Apart from that can not be worked in such a delicate form or devices such as needles in or on a concrete form, as they would be useless and dirty within a short time.

However, the techniques used in the production of fiber-reinforced plastics are, as previously stated in parts, not to be transferred to the field of textile reinforcements for concrete construction. For example, in the case of the mostly thin-walled fiber-reinforced plastics hardly any distances between "reinforcement" and outer edges of components are to be realized, which in turn have a particularly great importance in concrete construction, as well as the position of the reinforcement in the profile.

In general, it can be stated with regard to reinforced concrete components that the area of the concreting, ie the introduction and compacting of the concrete, is largely optimized. However, this does not apply to the production of the reinforcement. Since the step of producing the textile fabrics compared to the raw material (yarn or roving) doubles the resulting semi-finished product in its price compared to the rovings and of which about 40% are not used again as a blend in the concrete component, optimization is an important step for material and cost-efficient production.

The object of the invention is therefore to provide a process for the production of finished parts made of textile concrete as inexpensively and thus competitive to precast reinforced concrete. A solution is to be found according to which the reinforcement in the precast plant can be arranged more cost-effectively, above all as material-saving through less waste and the omission of a coating of yarns, according to stress, with low installation costs and with an integration of built-in components.

The object is achieved by a device for producing a textile reinforcement for a concrete component, comprising at least one laying device, in which at least one positioning device or at least one laying robot, preferably at least two-dimensional, is movably arranged to at least one yarn delivery device which dispenses the yarn. The laying device for forming at least one tension fabric is formed from at least one, preferably polymeric binder-free yarn (roving) within a base frame. At least such binders in the yarn are undesirable, which adversely affect the later properties of the reinforcement in the concrete part. Preferably, one or two clamping jigs arranged parallel to one another are produced, with thicker concrete parts also more than two parallel layers.

The base frame has yarn holding devices at least in the region of outer edges of the base frame and / or recesses, provided recesses such as openings for windows and doors are present. The Garnhalteeinrichtungen form at the same time deflection points of the yarn. The Spanngelege from at least one polymer binder-free yarn, of which any linear textile structure and in particular rovings are included, has a temporary inherent rigidity as long as it is held on the edge, in particular as long as it is connected to the base frame. Thus, it indicates for further processing, v. A. when concreting, an excellent strength, which is far above the conventional flat textiles, even if they are equipped with binders. As a result, the structure of the concrete part disturbing spacers are no longer needed.

The device has yarn holding devices at least at a first and a second end position of the device, wherein the yarn holding devices are arranged for example on a base frame or a base plate. The end positions also represent the deflection points of the yarn and are usually arranged on the outside of the edges of the base frame and around the recesses.

Among the linear textile structures, especially the yarn as a term of importance, since yarn after DIN 60900 is a collective term for all linear textile structures. Thereafter, a yarn is analogous to a long, thin structure of one or more fibers. It is a textile intermediate that can be made into fabrics, crocheted, knitted and embroidered or used for sewing. In the interests of a general understanding, the material used according to the invention is designated below as a yarn, but includes all suitable linear textile materials.

Within the scope of the invention, rovings as yarns are of outstanding importance. Roving is a bundle, strand or multifilament yarn of parallel filaments, that is, continuous fibers. The cross-section of a roving is usually elliptical or rectangular. Most commonly, filaments of glass, aramid or carbon (carbon) are combined into rovings. Normally rovings are sorted, d. H. produced from a Faserstoffart. But there are also hybrid rovings, which consist of filaments of different materials. The roving can practically only be used in combination with a matrix such as e.g. Concrete be used. It has high strength and rigidity in the fiber longitudinal direction. Mechanically, it is a unidirectional layer. The mechanical properties across the fiber are usually poor. Therefore, rovings are laid along the main load paths (main normal stresses). Composites of unidirectionally stretched rovings have a higher strength or rigidity than those of roving fabrics, since the rovings are wavy on fabrics, which stresses the fibers under load in a complex manner. This difference makes use of the invention, in that here clamping clutches are primarily produced from stretched rovings.

The laying along the main load paths leads to a total load-optimized filing method. This can for example also serve for the integration of particularly loaded elements in the reinforcement, such as stop elements or flange nuts as a suspension in facade panels.

Since the yarn used according to the invention, for example a roving, is substantially free of, in particular, polymeric binders, a particularly good bond to the intended matrix material concrete takes place. At least some existing binders must not impede the permanent and stable under conditions of use bond with the matrix material. The fibers are not affected by the matrix material by a binder such. B. plastic, which has lower strength from the ground up and can also continue to lose considerable strength under the influence of temperature and aging, with the result that the reinforcement is barely capable of transmitting power. A further improvement of the fiber-matrix bond is to be expected when the roving undergoes wetting of all filaments with a fine concrete in an immediately preceding process step. This is preferably done by spreading the roving and the subsequent wetting of the filaments and a final re-merging of the filaments. In addition, only a dry coating, z. As with cement, done, which is then wetted or activated in the concrete part, provides for improved bonding and sets. The corresponding coating can also be carried out immediately after production of the fiber as a sub-step of the fiber production.

A scrim, whether taut or not, is a sheet that consists of one or more layers of parallel, stretched threads or yarns to generalize as linear textile structures, according to the invention in particular rovings.

At the crossing points, the threads are usually but not necessarily fixed. The fixation is generally either by material bond or mechanically by friction and / or positive locking. However, the invention dispenses with a fixation, since the yarns form exactly definable crossing points by their tension, even without any fixing. Alternatively, however, it is also provided to perform a fixation in a known manner.

• – monoaxiale oder unidirektionale, die durch das Fixieren einer Schar von parallelen Fäden entstehen;
• – biaxiale, bei denen zwei Scharen von parallelen Fäden in Richtung von zwei Achsen miteinander fixiert werden; und
• – multiaxial: mehrere Scharen aus parallelen Fäden in Richtung verschiedener Achsen werden fixiert.

There are the following types of opportunities, which in principle can also be used according to the invention:

• - monoaxial or unidirectional, resulting from the fixing of a group of parallel threads;
• Biaxial, in which two sets of parallel threads are fixed together in the direction of two axes; and
• - multiaxial: several groups of parallel threads in the direction of different axes are fixed.

The plies in multi-layered plies may all have different orientations, also consisting of different yarn densities and different yarn fineness or materials. In contrast to fabrics, scrims have better mechanical properties as reinforcing structures in fiber-matrix composites (matrix material is primarily plastics or mineral materials such as concrete), since the threads are in stretched form, so that there is no additional structural strain and the orientation of the threads especially for the respective application can be defined anisotropically. Since, according to the invention, in particular untwisted yarns with fully drawn filaments in the form of rovings are used, the latter effect is particularly pronounced. Due to this elongated shape, a clutch in the English-speaking world and also in international trade is called non-crimp fabric (NCF).

A Spanngelege is a scrim that does not get through the use of synthetic resin or other tools suitable for manipulation in subsequent processes inherent rigidity, but this is done by a tenter. The clamping frame brings on all sides tensile forces in the Spanngelege, so that it is manipulated despite the lack of inherent rigidity by the clamping frame and does not sag. According to the invention, the base frame, in a special embodiment also the frame generated in the edge of the Geleges frame act as a clamping frame.

The yarn holding devices are arranged at least on a first and a second side of the device, for example a base plate or a frame. They form deflection points when generating the Spanngeleges. By deflecting later, after concreting an anchoring of the loop thus formed in the deflection point in the concrete, the same applies to any other matrix material, which is used together with the reinforcement of the invention. The loop thus anchored in the matrix material or concrete is thus able to directly remove a high load, while conventional steel reinforcement and even more textile reinforcement require a greater length embedded in the concrete before they are fully load-bearing. This length is between 20 and 200 cm depending on yarn, load and temperature.

The reinforcement according to the invention is therefore not acquired as a prefabricated textile fabric, but produced in the precast factory of rovings. By a laying device, comprising z. B. a base frame or the yarn delivery device moving machine or a movable installation robot, the rovings are stored directly in the formwork or removed from the formwork on the separate base frame to form the Spanngeleges and stretched in the base frame. Thus, the textile reinforcement is assembled directly in the production process for the component. Thus, two independently running process steps, the jelly and the precast concrete production, united and time-saving and cost optimized. This provides a high level of automation potential, which offers the opportunity to manufacture resource-efficient textile concrete components.

The laying device is preferably designed as at least one yarn delivery device arranged on a two-dimensionally effective positioning device or a laying robot. In particular, the positioning device, designed as in the plane parallel to Spanngelege at any point movable head with the Garnabgabeeinrichtung, a cost and simple embodiment of the invention. However, the positioning must have such dimensions that the largest to be produced Spanngelege fits under it. Alternatively or in addition to the movement of the yarn delivery device, the movement of the base frame is provided so that a relative movement between the two is achieved.

According to the preferred embodiment, it is provided that the yarn holding devices have deflection bolts. To this is wrapped in the course of the training of Spanngeleges the yarn. It has proved to be advantageous if at least a portion of the deflecting pin is individually elastically or actively deflected. This serves, in particular, to compensate for the different stresses of the individual layers that form around the deflecting pins in the clamping system when laying. Because of the high tensile strength and low elastic elongation of high-strength materials such as carbon fibers it comes to taut laying undefined stresses in Spanngelege that can either lead to an overload of individual layers or elastic deformation of the base frame, the latter also with the result that a part The layers sag slack from the deflecting bolts or even slides off. Elastic deflectable deflecting pins are individually resiliently arranged on the base frame in a suitable manner, preferably each on a simple and inexpensive to produce spring tongue.

Active deflectable deflection bolts are used for easier removal of the tensioning fabric and / or for the formation of different prestressing in individual areas of the reinforcement. The active control takes place for example by an electromagnet or pneumatically.

A complementary or alternative way to avoid the adverse effects of different stresses in individual layers, lies in the reduction of friction between yarn and Turning pin, so that this voltage differences can also compensate. For this purpose, at least a part of the deflecting pins is rotatable about at least one circumference about an axis of rotation, preferably roller-mounted, or provided with a friction-reducing coating. In this case, for example, the entire deflecting pin can be held at one end in a rolling bearing or clamped firmly and provided with a rotatable sleeve. This then turns preferably on a smooth-rolling bearings.

A further advantageous embodiment of the invention provides that at least a part of the deflection pin is provided for receiving a hollow cylinder of mineral material. This hollow cylinder, for example, also easily rotatably mounted on the Umlenkbolzen and remains as a functional element, for example as a spacer or a higher-strength hold a yarn loop, when concreting in concrete and combines thanks to its mineral material very well with the concrete as the matrix material.

Particular advantages reside in an embodiment in which at least one orientation bolt is arranged adjacent to at least one deflection bolt in such a way that the yarn separation is adjustable independently of the deflection radius. Hereby, a concrete retaining bolt, around which the loop of the reinforcing material is laid, can be given an optimum size without consequent restrictions on the yarn spacing. The same applies to a hollow cylinder of mineral material as described above. Thus, a large-sized retaining bolt or hollow cylinder could provide a very firm hold of the yarn loop in the matrix material and at the same time caused a dense yarn spacing thanks to the orientation bolt when the retaining bolts or previously the deflecting on a base frame at different edge distances, z. B. two rows, can be arranged. The arrangement of the deflection bolts on the base frame defines the deflection points, wherein the base frame also allows the arrangement of the orientation bolts.

On the base plate or the base frame with deflection points, such as deflection bolts, the yarn, such as filament bundles or rovings, which forms the later reinforcement, laid down so that especially the higher loaded concrete surfaces can be provided with a correspondingly strong reinforcement, the reinforcement need to be able to derive forces. The targeted storage of the yarn can be carried out according to requirements, so that an economical use of materials is possible and eliminates the associated loss of material cropping and the overlapping of predefined textile surface structures anyway.

On the base plate or the base frame could also be installed as additional advantage at the same time mounting parts such as conduits, spacers, anchors or the like. On a laying of capillary tube will be discussed later. The base plate or the base frame can be reused afterwards.

It is further provided that the base frame is assembled on a magnetic table made of frame parts which can be connected to each other. It is an individual base frame, which can be adapted to the particular concrete component to be manufactured. For this purpose, a sufficiently extensive set of frame parts is to be provided.

The desired dimensions of the intended concrete component by means of frame parts, for. B. steel rails, preferably with integrated Garnhalteeinrichtung as deflection, z. B. executed as a deflection, achieved. The frame parts are arranged for example by a shuttering robot on a substrate, preferably a magnetic table.

The transfer of data, for example concerning a layout of the yarns or a construction of the base frame or a position of inserts, is carried out in the preferred embodiment of the invention by the central reading of CAD data in the laying device. This means that erroneous data entry in the process chain is not possible because only the component geometries and other items requested by the planning engineer are transferred. It creates a digital process chain and thus a high degree of safety and accuracy in the production of the reinforcement and the concrete parts.

The arrangement of the deflection points is adapted individually to the respective component geometry. As this different frame parts are necessary, which are then placed on the ground. As a result, door and window recesses and other component penetrations can be realized. After the base frame has been assembled, it is fixed in itself so that the base frame later, even without a substrate, has sufficient stability for the further process steps.

Regardless of the high variability of the aforementioned solution, it is also provided according to the invention, especially for large numbers of individual components, prefabricated the base frame and use with predetermined dimensions. Likewise, several base frames or multi-part base frames can be used if the type of concrete part for which the reinforcement is to be manufactured or other technological requirements cause this.

The frame can be removed after the concreting by simply lifting and reused in total, while according to an alternative embodiment, the deflection remain in the component, especially if it is ceramic attachments such as the hollow cylinder made of mineral material.

If a prefabrication of the base frame on a substrate is not sensible or possible, the filing of the yarns can also be done directly in the formwork. The deflection points are preferably outside the formwork. In this case, for example, a split formwork or an additional frame element with deflection bolts is necessary, which is arranged outside the formwork.

It is also advantageous if the base frame is designed as a plate and alternatively or additionally a larger number of shots for deflecting, if provided also for orientation bolts, as deflection pins or orientation bolts are actually provided, so that the deflecting pins and orientation bolts variable on the Base frame can be arranged. As a result, an extent universal base frame for a variety of different Spanngelege can be used. For this purpose, only the deflection bolts or orientation bolts have to be introduced into the corresponding receptacles, preferably arranged in a grid. In the simplest case, these are holes in which deflecting bolts or orientation bolts are inserted.

An even greater flexibility promises a base frame, which is itself designed as a magnetic table, so that the deflecting pins are variably arranged on the base frame and are held by the magnetic force in the intended position. The magnetic force is then maintained at least until the concreting is completed. Later, the deflecting bolts and orientation bolts can easily fall off the magnetic table and be cleaned, for example, in a very simple manner. Thereafter, the magnetic table is re-equipped.

An alternative Garnhalteeinrichtung is designed as a running along the edge of the form, continuous clamping slot or a plurality of transverse to the edge of the mold arranged clamping slots, in which the thread is inserted through the laying device and held there. In particular, the continuous clamping slot allows a variable spacing of the deflection to easily. The clamping slots may consist of two rubber lips or designed as pressed against each other by spring force bars. Alternatively, they have additional protection against penetrating concrete or can be unfolded for cleaning. This is especially true when the device for forming the Spanngeleges is arranged directly in or on the mold and also remains there during concreting.

A further solution of the object according to the invention is a method for producing a textile reinforcement for a concrete component, wherein from at least one polymer binder-free yarn by means of a laying device in a base frame a Spanngelege is formed by the yarn under mechanical tension between arranged on the base frame Garnhalteeinrichtungen is relocated. The arrangement of Garnhalteeinrichtungen at the same time form the edge regions of the Spanngeleges and the subsequent reinforcement, which need not necessarily be the outer edges of the later concrete component. The edges of recesses in the concrete component, such as openings for doors or windows, may also constitute such an edge region.

Particularly preferred as a roving roving suitable for use in textile concrete high-performance filaments. Here, not only because of the stretched filaments, a particularly good power absorption is to be expected, but also a good connection to the matrix material concrete, since there is no rotation of the fibers, which would hinder the penetration of concrete and reduce the tensile strength.

In order to improve the bond between the filaments and the concrete even further, it is provided according to a special and particularly advantageous embodiment that initially expanded in the sense of an on-line coating, the individual filaments preferably wetted with fast-setting fine concrete and then back to the Roving be merged. Such a prepared roving is immediately processed into a clamping jig and forms an intrinsically stable ceramic reinforcement, which can be easily and safely transported for concreting. This inherently stable ceramic reinforcement has a particularly good connection to the introduced as a matrix material in a formwork concrete. In addition, it does not depend on a slight penetration of the concrete into the roving, so that no fine concrete must be used as the matrix material. Furthermore, special attention should be paid to drying, hardening and melting.

Preferably, the roving is formed of carbon fibers. Carbon fibers are lightweight, have high tensile strength and resist corrosive influences. The roving itself offers a further improved tensile strength over a fabric, for example, because of the perfectly stretched fibers.

It has proved favorable if the laying takes place by means of at least one yarn delivery device, which is arranged on a two-dimensionally effective positioning device. Thus, the planar reinforcement can first be prepared by forming a two-dimensional tension fabric. Incidentally, reference is made to the description of the apparatus for producing a textile reinforcement for a concrete component above.

Particular advantages for the laying of the rovings and / or the arrangement or positioning of the deflection points, individually adapted to the respective component geometry, arise when they are based on a CAD control.

The same applies if various frame parts are necessary, which must be arranged on the ground and thereby door and window recesses and other component penetrations can be realized. The desired dimensions of the reinforcement for the intended concrete component in the case by means of composite frame parts, for. B. steel rails, preferably with integrated deflection points or deflection bolts achieved.

The data transfer takes place in this preferred embodiment of the invention by the central reading of CAD data. As a result, incorrect data entry in the process chain is not possible since only the component geometries desired by the planning engineer are transferred. Likewise, the filament bundles can be deposited according to CAD data. This creates a digital process chain. For this purpose, the CAD data are also read and processed by a publishing robot or other installation device.

After laying the ready-covered and fixed in itself base frame is released from the base plate and placed headfirst on the proposed component formwork. Now the reinforcement is in the correct position in the future component. Due to the open frame structure, the concreting of the component can be carried out easily afterwards by means of Ausbringkübel on the Schaltisch. The frame can be removed after the concreting by simply lifting again and reused, while the deflection, preferably carried out as a hollow cylinder, can remain in the component, if so provided.

It is also advantageous if in addition to the laying of the yarn substantially linear functional elements are laid. These can then also be controlled by the deflection bolts. This applies, for example, capillary tubes for later heating or cooling or for removing heat from the concrete part, for example, a capillary tube of 5 mm diameter, or electrical lines for heating. The programmed laying creates a capillary tube mat with individual expansion and tube density according to the respective requirements.

An alternative possibility of obtaining a textile reinforcement that can be manipulated without aids is obtained if the tensioning layer in a peripheral area is treated with a fixing agent until a stiff tensioning frame of textile material is formed. In this way, the majority of Spanngeleges remain free of a binder, yet the Spanngelege receives sufficient rigidity to be spent without basic frame for concreting or otherwise manipulated. The fixing agent may also be a polymeric binder.

Also advantageous is an embodiment of the device according to the invention, in which the base frame has at least one device for spacing against a formwork, this device being designed as a support frame, support bolt and / or outer support. The device ultimately ensures a defined position of the reinforcement in the concrete part.

The object of the invention is also a textile reinforcement obtainable by a method as described above. Such a textile reinforcement unfolds its greatest advantages, if it is not made directly in the context of concreting, but in the same operation individually and can be easily introduced for concreting. Regardless of this, other technological solutions are conceivable, such as, for example, a central production of the reinforcement and an inter-company circulation of the frame which can be stretched.

A further solution of the object of the invention is a ready-made fabric made of textile concrete obtainable by a process as follows:

The method is used to produce prefabricated parts made of textile concrete, wherein a Spanngelege, formed as described above, is arranged in a formwork as a reinforcement, the shuttering is poured and shaken with concrete or fine concrete.

The base plate is rotated in a preferred embodiment of the method according to the invention by 180 degrees and comparable to a steel reinforcement on the prefabricated formwork, which may be partially already provided with a first layer of concrete placed. After the introduction of the (further) concrete, the compaction and possibly even curing, the base plate is removed again. Depending on the design, the deflection points are pulled out of the concrete before hardening or remain in the concrete structure, especially if they are made of concrete or other mineral material. The base plate or the base frame can be reused afterwards.

An alternative embodiment of the method according to the invention provides that the tensioning layer is formed between the halves of the formwork and the deflection area lies outside the formwork. Then comes the base frame with the deflector not scheduled in contact with the concrete, contamination and material-related wear are avoided or reduced.

In the preferred embodiment of the method according to the invention, the base frame is brought to the formwork with the clamping structure, turned, connected to the formwork and fixed on the back. This allows complete spatial and procedural separation of the jelly formation and concreting. As a result, the rather filigree and sensitive devices used to make the tensioning fabric are not polluted or damaged under the comparatively rough concreting conditions.

Such a finished part produced has a high strength, which is dependent on the load on the highly stressed areas. Therefore, only a relatively small amount of reinforcing material is needed, which lowers the cost of the concrete component. In addition, the edge regions are highly resilient because the inventive textile reinforcement of the loop carries on and also into the edge areas, without the requirement of a minimum coverage, can be reinforced.

The invention further makes the production of the textile fabric at the textile manufacturer completely obsolete, since the rovings, which were previously processed into textile fabrics by the textile manufacturer, are now assembled directly in the concrete plant and processed in the finished part manufacturing process according to requirements in terms of size and structure to form a textile fabric.

Since the rovings are placed on a base plate or a grid so that only the surfaces receive a reinforcement, which are later concreted, a waste-free work is ensured. There is therefore almost no waste and no overlaps. A prefabricated concrete part of 12 m ² surface needs only a total of reinforcement material for about 12 instead of about 20 m ² as before, which means a material saving of 40%. Furthermore, the rovings in the direction and number can be varied so that z. B. at high stress areas a larger number of rovings is placed as at less stressed areas, which is associated with further material savings. Thus, 100% can be produced according to requirements and particularly material-efficient. Also, the reinforcing material can be combined. For example, carbon is used at high stress points and AR glass rovings at lower stress points, depending on mechanical properties.

Another advantage is the extremely advantageous for the load bearing capacity of the reinforcement and selectively influenced deflection points at the edges, however, are usually removed in textile production. But even if they remain on the textile, they are usually not in the final component where they are, for. can be used to anchor the reinforcement. According to the present invention, these deflection points are v. a. at the edges of the components and in the recesses they contain, where they can be used to anchor the rovings.

Due to the elimination of the upstream textile manufacturing process and the now direct storage of present as a yarn or roving reinforcement material in the precast concrete plant, the coating of the rovings takes place - if still necessary - during storage and only with means that do not reduce the bond to the concrete matrix , This represents a further advantage, since depending on the component requirements, the properties of the coating can be optimally selected. Even if a coating is dispensed with for concrete components which must be at higher temperatures, the invention nevertheless encompasses yarns with a coating, which can be used if no thermal requirements are imposed and the problem of aging of coatings also causes no disadvantages.

• • der Materialbedarf (u. a. für Rovingmaterial, Beschichtung, Abstandshalter für textile Gelege) deutlich gesenkt;
• • die Transportaufwendungen reduziert;
• • die optimale Garnanordnung (z. B. Material, Richtung, Menge) ermöglicht;
• • eine gleichbleibende hohe Qualität gesichert;
• • die Möglichkeiten einer bzw. unterschiedlicher Vorspannung gegeben;
• • der Arbeitsaufwand bei der Herstellung der Bewehrung (Zuschneiden, Überlappen, Entsorgen der Reste entfällt) drastisch reduziert;
• • ein hoher Automatisierungsgrad (Wegfall der Prozessschritte Konfektionieren der Bewehrung, Einbringung von Abstandshaltern und von Elementen zur Verhinderung des Aufschwimmens der Bewehrung) wird ermöglicht;
• • die Flexibilität der simulationsgestützten Bauteilfertigung stark erhöht;
• • die Kosten für die Herstellung reduziert und
• • insgesamt die Konkurrenzfähigkeit von Textilbetonfertigteilen erhöht.

An additional advantage is that the insertion of components such as conduits, empty sockets for electrical installation and anchor bolts by the new method is also easily possible. The invention achieves the following advantages:

• • the material requirement (eg for roving material, coating, spacers for textile scrim) significantly reduced;
• • reduced transport costs;
• • enables the optimal yarn arrangement (eg material, direction, quantity);
• • secured a consistently high quality;
• • given the possibilities of a different bias voltage;
• • drastically reduces the work involved in producing the reinforcement (cutting, overlapping, disposing of the remains);
• • a high degree of automation (elimination of the process steps of assembling the reinforcement, inserting spacers and of Elements for preventing the floating of the reinforcement) is made possible;
• • greatly increases the flexibility of simulation-based component production;
• • reduces the cost of manufacturing and
• • Increased overall competitiveness of textile precast concrete parts.

The innovation and novelty of the invention is the direct merging of two industrial areas between which there are otherwise no production technological connections, and thus the surprising saving of a previously unavoidable, from the point of view of the concrete plant mandatory external value creation process step, namely the semis production in a textile plant. It will not be as previously from yarn on textile machinery semi-finished products in the form of z. B. biaxial made for the reinforcement of the concrete. The conventional part of semifinished product manufacturing or reinforcement production is now integrated into the process chain of the prefabricated part manufacturer, thus eliminating the need for a single production step.

This also eliminates the transport from yarn to semi-finished textile manufacturers, the cost-intensive production of semi-finished products as well as the transports from semi-finished textile manufacturer to concrete component producer. Furthermore, the overlap of the reinforcement to achieve the necessary overlap lengths and the waste of up to 40% are saved. The yarns are also placed directly load-oriented in the reinforcement, which was previously not possible.

Further details, features and advantages of the invention will become apparent from the following description of exemplary embodiments with reference to the accompanying drawings. Show it:

1 : State of the art in the laying of reinforcements in textile concrete;

2 FIG. 2 schematically shows an embodiment of a base frame according to the invention with a tensioning structure, forming a reinforcement with recesses; FIG.

3 : schematically an embodiment of a laying device according to the invention with a base frame, clamping layer and laying device;

4 : schematically an embodiment of a base frame according to the invention with deflecting pins on spring tongues in detail;

5 : schematically an embodiment of a deflection pin according to the invention with a hollow cylinder;

6a to 9b FIG. 1: schematically an embodiment of a method sequence according to the invention for the production of textile-reinforced concrete components; FIG.

10 FIG. 1 schematically shows an embodiment of a device according to the invention for producing a concrete roving; FIG.

11 : schematically an embodiment of a clamping device according to the invention for the yarn;

12 : schematically an embodiment of a support frame according to the invention;

13 : schematically an embodiment of a base frame according to the invention with support bolts; and

14 : schematically an embodiment of a base frame according to the invention with outer support.

1 shows the state of the art in the laying of reinforcements 2 in a concrete component 1 made of textile concrete, in the example shown a total of three parts of a textile reinforcement 2 must be laid, which contributes to the formation of sufficient tensile overlaps 3 need. Besides that for the overlaps 3 required additional material require the recesses 4 that in these areas also the material of the reinforcement 2 is cut out. The material cut out there can no longer be used and must be disposed of as waste. This results in additional costs and the effort to adapt the present textile material accordingly.

2 shows schematically an embodiment of a base frame according to the invention 9 with tensioning gel 14 with recesses 4 forming a later reinforcement for a concrete part. The recesses 4 are not even provided with an unnecessary reinforcement, as was the case with the prior art. Instead, deflection bolts 10 , as well as on the edge of the base frame 9 to the recesses 4 arranged around. This allows the yarn 7 from one side of the base frame 9 to the other side or to the edge of one of the recesses 4 be stretched, in each case between two deflection bolts 10 , Laying and clamping of the tensioned fabric 14 takes place in the present example uniformly and at right angles crosswise, in the manner of a fabric, but without the stretched yarns 7 to lay around each other. Likewise, an uneven arrangement of the yarns would be 7 possible to reinforce certain, higher loaded areas more, here shown darker, whereas in less stressed areas yarn 7 save.

Included in the invention is a base frame 9 which is multipartite; as well as a base frame, which is immutable in its dimensions or made of individual elements variably composable.

3 shows schematically an embodiment of a device according to the invention 5 for producing a textile reinforcement for a concrete component with base frame 9 , Spanngelege 14 and laying device 6 , To recognize is the basic frame 9 that already partially with a Spanngelege 14 from yarns 7 which is covered as well as in 2 between the edge areas of the base frame 9 or the recesses 4 is spanned. In the aforementioned areas are Garnhalteeinrichtungen 8th , preferably designed as a deflection pin or clamping slots.

The yarn 7 is doing about a yarn delivery device 18 supplied, which is designed so that the yarn 7 under tension to the Spanngelege 14 can be processed. For this purpose, the yarn delivery device 18 from the laying device 6 comprising, in the present embodiment, a laying robot 19 in the way intended above the base frame 9 and a first yarn holding device 8th to a second, opposite Garnhalteeinrichtung 8th guided. The control of the publishing robot 19 takes place in the preferred embodiment on a computer basis, for example on the basis of prepared CAD data.

Since it is in the example shown Spanngelege 14 may be a two-dimensional entity, instead of a publishing robot 19 even simpler devices are used. By way of example, an in-plane in two directions movable yarn delivery device 18 or a correspondingly movable base frame 9 called. Alternatively, each of the two basic elements can each serve a direction of movement, so that a two-dimensional relative movement results. Furthermore, you can have multiple base frames 9 and / or multiple installation devices 6 , for example, publishing robots 19 , are used, for. B. to the inventive reinforcement faster or with different yarns 7 to customize.

In addition to the filing of the yarn shown here 7 in two mutually perpendicular directions, it is provided according to the invention to move the yarn at any angle to each other, such. B. at an angle of 45 °.

In areas subject to high loads, such as door and window lintels, concentrated reinforcement is also possible in order to be able to better absorb the loads occurring there and to save the remaining component in a material-saving manner. This is also on 15 with associated description.

Furthermore, it is provided that more than one position of the Spanngeleges 14 on the base frame 9 is spanned. This concrete components can be manufactured, which have a plurality, preferably two mutually spaced layers of reinforcement. This can for example by a laying device 6 to both flat sides of the base frame 9 respectively.

4 shows schematically an embodiment of a base frame according to the invention 9 with deflecting pin 10 on spring tongues 11 in detail in perspective view. Is on the deflecting bolts 10 exerted a force, in particular by a strained roving or another yarn, gives the bolt 10 with the spring tongue 11 to. This will be the base frame 9 protected from being elastically deformed and thus to allow the entire lying thereon Spanngelege slack in an undesirable manner. According to the invention, other variants of the resilient suspension of the deflecting pin 10 , For example, by a spring-loaded Bolzenfuß or longitudinally displaceable tongues, where each individual deflection pin 10 is appropriate.

Furthermore, it is provided according to the invention to be able to actively move the deflecting bolts, not least in order to achieve a simple removal of the finished Spanngeleges or to be able to bias individual areas thereof with a defined force.

Another embodiment of the invention shows the 4 with the hollow cylinder 12 that is on a turning pin 10 is plugged. This hollow cylinder 12 can, no matter which material it consists, serve the purpose of a slight slipping of the yarn on this role as a hollow cylinder 12 to enable. This can be the hollow cylinder 12 for example, roller bearings with respect to the deflecting pin 10 be.

In particular, however, it is provided, the hollow cylinder 12 from a mineral material, for example concrete. Then the hollow cylinder 12 remain after the concrete in the concrete component there and thus at the same time provides an immediately resilient support for the loops of the yarn formed around the hollow cylinder 12 around, optionally also a support for the entire reinforcement. In addition, the hollow cylinder can be made of a higher-strength material, the rest of the matrix material, however, made of a less solid material. Thus, the reinforcement is highly resilient, even if the rest, low-cost matrix material such pull-out forces on a conventional reinforcement could not transfer.

5 schematically shows an embodiment of a deflection pin according to the invention 10 with hollow cylinder 12 in plan view, arranged on the base frame 9 , It can be seen that the hollow cylinder 12 by its relatively large deflection radius 25 a large distance between the passing parts of the yarn 7 would cause. This results in a conflict of objectives, since on the one hand the large deflection radius 25 ensures that high forces are introduced into the matrix material, for example the concrete. On the other hand, these forces would be due to the relatively small number of yarn lines by a large yarn spacing 24 limited. This conflict is resolved according to the invention by orientation bolts 13 are used, the yarn spacing 24 reduce so far that a larger number of yarn lines parallel to a high strength of the reinforcement in this area leads. By staggered arrangement of the deflecting pins 10 High yarn densities are achievable.

6a to 9b show an exemplary process flow for the production of textile-reinforced concrete components. Here, first, the yarn 7 around the deflecting bolts on the base frame, which are not recognizable here 9 stored by laying robot or alternatively with a movable portal frame. 6a shows the partly stretched base frame 9 in perspective, 6b while a schematic sectional view of the side, in which the arrangement of the base frame 9 on a background, here as a magnetic table, can be seen.

After the 7a and 7b becomes the base frame, which is now completely covered by the clamping system 9 together with the underground 15 turned, with the base frame 9 by the magnetic force of the magnetic table 26 on the ground 15 liable.

The representation in the 8a and 8b shows how the base frame 9 after turning on the formwork 16 is hung up. Then the basic frame becomes 9 with the formwork 16 connected and fixed at the back so that base frame 9 , here as at the edge of the formwork resting Auflagerahmen 31 (see. 12 ) and formwork 16 when concreting can not move against each other and the Spanngeleg 14 gets its intended position in the later concrete part.

Finally, the concreting is carried out as the 9a and 9b demonstrate. This is the concrete 17 introduced and in the formwork 16 filled. For this purpose, fine concrete is preferably used, which is compacted after casting by shaking. Following this, after a suitable setting time, remove the clamping frame and dry the component, if not already before deflection pins 10 would have to be removed from the concrete.

10 shows schematically an embodiment of a device according to the invention for producing a concrete roving 20 , For this purpose, the present as a roving yarn 7 by a filament spreading device 22 guided. The individual elements of the roving are separated from each other so far that a matrix material can wet each filament individually or filament bundles of a suitable number of filaments. In the present embodiment, fine concrete is used 21 as a matrix material through which the filaments are passed. This process step is followed by densification of the roving in a densifier 23 in which the roving is brought together again and the device as concrete roving 20 leaves. Such a concrete roving is preferably produced with fast-curing fine concrete, so that in a short time a solid, rod-shaped concrete roving 20 arises. Will such a concrete roving 20 processed in a Spanngelege, creates an intrinsically stable grid, which also ensures a high-strength reinforcement a very secure connection to the matrix material of the later concrete component.

11 schematically shows an embodiment of a clamping device according to the invention 30 for the yarn 7 , It consists of two jaws, which form a narrow gap, and between them the yarn 7 is trapped and thereby held.

12 shows schematically an embodiment of a support frame according to the invention 31 , An advantageous embodiment of the base frame including background, such as in 7b shown. This is the support frame 31 with the tension located therein 14 also on the formwork 16 on. As a result, support frame 31 and Spanngelege 14 opposite the formwork 16 secured in their position and the reinforcement receives the concreting the intended location in the concrete part.

13 shows schematically an embodiment of a base frame according to the invention 9 with underground 15 , such as in 7b shown, with support bolts 32 take over the task, the position of the base frame relative to the formwork 16 to secure. Also by this, as an alternative or in addition (in the latter case while avoiding overdetermination), basic frames and clamping arrangements are obtained 14 , such as in 12 shown, opposite the formwork 16 secured in their position and the reinforcement receives the concreting the intended location in the concrete part.

14 shows schematically an embodiment of a base frame according to the invention 9 with outer pad 33 , Neither is the base frame on the formwork 16 on, are still bearing bolts 32 intended. This will on the one hand Prevents contamination on the formwork from causing the base frame to be fixed in a faulty position. On the other hand, unwanted breakthroughs are avoided in the concrete part, as the support bolts 32 leave behind if they are against the formwork 16 support.

Regardless, it is also intended that the outer pad 33 is used together with at least one of the conditions described above.

15 shows schematically an embodiment of a base frame according to the invention 9 with deflecting pin 10 and a flanged nut 34 , in the example shown in a concrete part 1 installed as their suspension is used. The suspension is characterized by a high force and therefore requires a corresponding force in the concrete part 1 , To break or damage the concrete part 1 in the area of the flange nut 34 To avoid, the reinforcement, here first as Spanngelege 14 to see, optimized for optimized flow. The yarn 7 therefore extends between the deflecting pins 10 and the flange nut, 34 , whereby the force acting there in the concrete part 1 is initiated.

LIST OF REFERENCE NUMBERS

1

concrete component

2

reinforcement

3

overlap

4

recess

5

Device for producing a textile reinforcement for a concrete component

6

laying device

7

yarn

8th

yarn holding

9

base frame

10

deflecting

11

spring tongue

12

hollow cylinder

13

orientation pin

14

clamping crimp

15

underground

16

formwork

17

concrete

18

Garnabgabeeinrichtung

19

laying robot

20

Betonroving

21

fine concrete

22

Filamentspreizeinrichtung

23

compacting device

24

yarn spacing

25

turning radius

30

clamper

31

support frame

32

Auflagebolzen

33

outside edition

34

flange

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10019824 A1 [0003]
• DE 10232142 A1 [0003]
• DE 102004027739 A1 [0004]
• DE 102005048190 A1 [0005]
• DE 102007015838 A1 [0006]
• DE 102007031935 A1 [0006]
• DE 102007038931 B4 [0007]
• EP 2666922 A1 [0016]
• WO 2008/07986 A1 [0018]
• DE 102005055770 A1 [0018]
• DE 102005034400 A1 [0019]
• JP 2000199151 A [0020]

Cited non-patent literature

• DIN 60900 [0027]

Claims (10)

Device for producing a textile reinforcement for a concrete component, comprising at least one laying device ( 6 ), in which at least one positioning device or at least one laying robot ( 19 ) to at least one yarn delivery device ( 18 ) for the yarn ( 7 ) is arranged relatively movable, characterized in that the laying device ( 6 ) for the formation of at least one Spanngeleges ( 14 ) of at least one endless yarn (not comprising polymeric binders) 7 ) within at least one basic framework ( 9 ), the base frame ( 9 ) Yarn holding devices ( 8th ) at least in the region of outer edges of the base frame ( 9 ) and / or recesses ( 4 ), wherein the yarn holding devices ( 8th ) as horizontally acting clamping slots ( 30 ) or wherein the yarn holding devices ( 8th ) Bolt ( 10 ) and at least a part of the deflecting pins ( 10 ) is individually elastically or actively deflected and / or at least a part of the deflection bolts ( 10 ) is mounted friction-reducing at least on a circumference, and wherein the Garnhalteeinrichtungen ( 8th ) at the same time deflection points of the yarn ( 7 ) form. Apparatus according to claim 1, wherein at least a part of the deflecting pins ( 10 ) for receiving a hollow cylinder ( 12 ) is provided of mineral material. Apparatus according to claim 1 or 2, wherein adjacent to at least one deflecting pin ( 10 ) at least one orientation bolt ( 13 ) is arranged in such a way that the yarn spacing ( 24 ) regardless of the deflection radius ( 25 ) is adjustable. Device according to one of the preceding claims, wherein the deflecting pins ( 10 ) on the base frame ( 9 ) can be arranged. Apparatus according to claim 4, wherein the base frame ( 9 ) on a surface ( 15 ), designed as a magnetic table ( 26 ), is composed of interconnectable frame parts. Apparatus according to claim 4, wherein the base frame ( 9 ) even as a magnetic table ( 26 ) is executed, so that the deflection bolts ( 10 ) variable on the base frame ( 9 ) can be arranged and magnetically fixed. Device according to one of the preceding claims, wherein the base frame ( 9 ) at least one device for spacing with respect to a formwork ( 16 ), wherein the device as a support frame ( 31 ), Bearing bolts ( 32 ) and / or external support ( 33 ) is executed. Method of producing a textile reinforcement for a concrete component, characterized in that it consists of at least one endless yarn substantially free of polymeric binders ( 7 ) by means of at least one laying device ( 6 ) in at least one basic frame ( 9 ) at least one Spanngelege ( 14 ) is formed by the yarn ( 7 ) under mechanical tension between at the base frame ( 9 ) arranged Garnhalteeinrichtungen ( 8th ), the yarn holding devices ( 8th ) as clamping slots ( 30 ) or wherein the yarn holding devices ( 8th ) Bolt ( 10 ) and at least a part of the deflecting pins ( 10 ) is individually elastically or actively deflected and / or at least a part of the deflection bolts ( 10 ) is rotatably mounted at least on a circumference about an axis of rotation, and wherein the Garnhalteeinrichtungen ( 8th ) at the same time deflection points of the yarn ( 7 ) form. Textile reinforcement for a concrete component, as Spanngelege, comprising a load-oriented yarn guide, of endless yarn in the manner cantilevered stretched between Garnhalteeinrichtungen that the Spanngelege is stretched so that it keeps the load during concreting the intended location in the concrete part. Finished part of textile concrete, comprising a tightly stretched textile reinforcement according to claim 9.

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