RU2126073C1 - Joining bar for installing in wall being concreted for filling planned fractures - Google Patents

Abstract

FIELD: construction engineering. SUBSTANCE: joining bar is made up of bar-carrying strip. Located on this strip is device which creates inlet passage. Device extends over entire length of strip. Aforesaid strip can be made of thin-wall plastic article, zinc sheet or other like material. Device which creates inlet passage is in the form of foam plastic stripe located on strip. Strip can be provided at both sides with unit which creates inlet passage and/or perforated holes to allow sealing material to pass through these holes. Aforesaid embodiment of joining bar for filling fractures is installed in area of wall being concreted and corresponds to height of wall. After concreting of wall sealing material is injected into created inlet passage. EFFECT: higher efficiency. 20 cl, 12 dwg

Description

 The invention relates to a docking rail for installation in a concrete wall in order to close up the planned breaks. When concreting long, continuous sections of the wall due to shrinkage of concrete during hardening, cracks appear that can lead to a violation of the density of the wall. Therefore, in certain places of the wall, in particular, when it comes to the walls to which water approaches, by installing elements that reduce the cross-section of the wall, breaks are specially formed. Gaps are sealed by means of elements designed for these purposes, so that the density of the wall is ensured.

 To seal such breaks, docking sealing tubes are usually used, consisting of a hose-shaped docking tape and a rigid pipe made of solid polyvinyl chloride.

 With the simultaneous installation of docking sealing pipes in the center of the wall and the rail of a triangular profile on the inner and outer sides, the cross section of the wall is intentionally reduced. Due to this, shrinkage cracks are locally limited and sealed with a connecting tape.

 In this case, a hose-shaped docking tape is welded with a docking tape located horizontally at the junction of the foundation plate and the wall, so that a waterproof elastic layer appears.

 Sealing pipes of this type for sealing joints have the disadvantage that they cannot be placed on the surface of the foundation plate on which the wall will be concreted, since water can seep in the longitudinal direction of the joint seal area.

 In addition, there are known connecting tires for closing up planned breaks made of plate, hollow or incomplete elements with several chambers located in the longitudinal direction. These tires have a certain strength so that a swellable tape can be placed in a groove located on the longitudinal narrow side. The swellable tape is also placed on the narrow side of the tire, located on the base, in order to provide a seal in the joint between the foundation plate and the concrete wall. This swellable sealing tape located on the lower narrow side of the tire is then connected to other swellable sealing tapes laid in the longitudinal direction of the joint between the foundation slab and the concrete wall, whereby conventional sealing of the entire joint area with a swellable tape is achieved.

 The tires with hollow chambers used are made of plastic. In addition, either very strong swellable tapes should be used, which again leads to an increase in the cost of making a docking bus to close up the planned breaks, or the sealing ability is limited and insufficient at high water pressures in some places. Additional sealing of such discontinuities using swellable tapes can be performed either only externally or is very expensive if it is necessary to make a seal on the tire itself. The wall needs to be opened or it can be sealed in a separate place by the method of spot injection from the outside, which is very expensive.

 The swellable tape used in this case swells under the influence of water. The swelling agent is a hydrophilic mass that is introduced into the carrier, most often chloroprene rubber. The task of the carrier is, first of all, to give the swellable medium stability and elasticity. The hydrophilic (water-absorbing) component absorbs water molecules and thereby increases its volume by about 1.5-4 times. This creates a pressure of up to 6.5 bar, which fills the hollow areas surrounded on all sides and thereby makes them waterproof. When using such swellable agents, it should be borne in mind that the swelling mass does not expand immediately, but slowly, after hours, or even days, and as a result, it can be used to a limited extent in areas with variable climates, where there are wet and dry periods. The characteristic benefit of using a swellable agent and the reason for its frequent use are its ability to reliably seal joints between various materials, such as, for example, concrete / plastic, concrete / iron, etc.

 In addition, sealing devices are known for sealing the joint between two concrete sections forming a channel through which the corresponding material is injected at high pressure into the joint area and compacted.

 Swiss Patent 600077 describes a hose consisting of a thrust prism in the form of a helical spring, which is surrounded by a first braided hose, which, in turn, is surrounded by an external, mesh-like, porous hose. After installing this sealing device and concreting the second section into a sealing device made in the form of a hose, the sealing material is squeezed out, which should protrude at the places of voids in the concrete. A hose of this kind is relatively difficult to manufacture.

 In order to better protect such a porous hose from clogging with concrete slurry, the German Federal Patent No. 8335231 UI proposes to place a non-woven material that transmits liquid and does not allow small particles of concrete between a thrust prism in the form of a coil spring and an outer mesh hose.

 Finally, from the Federal Republic of Germany patent 8608396 UI, another sealing device is known in the form of a supply hose, which, on the one hand, intends to eliminate the disadvantages of placing the hose using the linings provided on its body, and on the other hand, offers a predetermined break point in the longitudinal direction of the hose-like body, through which sealing material must enter concrete.

 The device of such a hose in the conditions of progressive development is becoming more complex and expensive, which is also associated with increased costs. In addition, there is a danger of squeezing such hoses during concreting, so that it is difficult to inject the sealing material to make the concrete waterproof.

 Therefore, in European patent 0418699 A1, a sealing device is proposed having in cross section an open, lid-like profile, which, when installed, is mounted with the free longitudinal edges of its side region on a concrete surface, so that a channel for the passage of the sealing material is formed between the profile and the concrete surface. The sealing material is introduced under high pressure into the flow channel and protrudes between the free longitudinal edges of the profile and the concrete surface at the places where voids form in the concrete. Another sealing device described here is a body consisting of foam, or a foam tape, which has through pores and preferably a rectangular cross section and is laid on a concrete surface so that the channel for the passage of the sealing material is formed by the body itself, and the sealing the material protrudes from the through pores to the joint area.

 The sealing device, although it represents a significant step forward in comparison with conventional hoses, is not intended for closing gaps, since a one-sided open profile is laid on the finished concrete surface of the foundation slab in order to form the inlet channel. However, when closing the planned gaps, the device for filling them is concreted on both sides, so that such a profile opened on one side is filled with concrete.

 From the patent of Germany 9320134 U1 known fillable docking bus for sealing gaps with the aim of sealing them. This connecting bus has ribs located on both sides of it and consists of a pressed packaged part, which has at least one cumulative transit channel in the center in the longitudinal direction. As an outlet, such a transit channel has a groove located in the longitudinal direction and covered by a sealing strip laid with a geometric closure. The sealing strip opens like a valve when the fluid is supplied, so that the supplied fluid can exit the inlet.

 Such a docking bus has, in contrast to conventional docking buses without an inlet for their subsequent sealing, a clear cost advantage. However, the formation of the inlet channel is expensive, since it provides a hollow channel, closed with a specially made sealing tape. For two-sided sealing, the presence of two inlet channels is necessary, which, although it increases the degree of reliability of the sealing process, however, it also increases the cost of manufacturing such a connecting bus.

 A simpler version of a double-sealed docking bus is given in German Patent No. 4,140,616 A1, in particular in FIG. 4. Such a connecting bus is made on one side with the inlet channel and has on the other side, deployed from the inlet channel, a swelling tape. The inlet channel and swellable tape are located "back to back" on the connecting bus.

 In addition, in the patent of Germany 9315974 U1 described the connecting sheet on which the inlet hose is mounted. The inlet hose is located approximately in the center of the cross section on the wall of the connecting sheet without tearing and is in the free space between the wall of the connecting sheet and the protruding wall having a gap.

 Thus, the prior art allows us to conclude that there are connecting tires for sealing gaps in order to seal them, providing reliable sealing, in particular when they have inlet channels on both sides. If the device of the docking bus is simplified, then its cost, although it will decrease, however, the reliability of the seal when sealing joints is reduced.

 There are many cheap, simple forms of docking busbars, which, however, have an inlet channel on only one side, and therefore sealing with a loading medium is carried out on only one side.

 Such many simple forms of execution shows that there is a great need for simple, cheap connecting tires to close up the planned breaks, which provide at the same time high reliability of the seal performed using the loading medium.

 Therefore, the basis of the invention is the task of creating a simple, inexpensive connecting bus to close up the planned gaps, which allows for reliable, with the possibility of subsequent sealing of these gaps.

 The problem is solved with the help of a connecting bus to close up the planned gaps when concreting a wall having the characteristics of paragraph 1 of the claims.

 Using a plate, which is a tire-bearing base and having the shape of a strip, with a device placed on it, forming an inlet channel and located along the entire length of the plate, a device has been created for closing up the planned gaps and allowing subsequent sealing by injection into the inlet channel of the sealing material.

 Since the perforation is applied to the plate in the area of contact with the device forming the inlet channel, using the declared connecting bus to close the planned breaks on both sides of the plate, means are supplied to adjacent concrete sections, even if the connecting bus has only one single inlet channel. Due to this, the reliability of the subsequent compaction is significantly increased with a simpler method of execution.

 In addition, the perforation applied to the docking bus with two inlet channels located on opposite sides in the perforation region allows to reduce the cross-sectional area of the inlet channels, since both inlet channels communicate with each other through perforated holes, and a violation in some place of functioning one channel is compensated by the operation of a parallel inlet channel located on the other side of the plate.

 This problem is also solved due to the fact that the plate is made of a thin-walled plastic part, in particular of zinc sheet, while the plate has a swellable tape located approximately parallel to the device forming the inlet channel, and the swellable tape is located on the lateral longitudinal edge of the busbar plate and adjacent to the device forming the inlet, the swelling tape is located on both sides of the plate, and the device forming the inlet channel, the plate and / or swelling the tape and plate are interconnected by gluing.

 Further, this problem is solved due to the fact that the device forming the inlet channel is a strip of foam with open cells, made preferably of rigid material, and in the area of the strip of foam plate has a contour in which at least part of the strip of foam, while the contour of the plate surrounds the strip of foam from its three longitudinal sides, and the device forming the inlet channel is a solid hollow channel located on the busbar plate, and the hollow channel covered, respectively, the strip of foam, wherein the hollow channel communicates with the foam from the strips.

 Further, the device forming the inlet channel is a supply hose, which consists of a portion of the hose and of a tape-shaped portion of the base, which is located in the area of perforation of the plate, while the busbar plate is made of thin-walled material having its own rigidity, and the device for education the inlet channel is located in the center of the cross section of the plate.

 In FIG. 1 is given the 1st embodiment of the claimed device; in FIG. 2 - 1st embodiment according to FIG. 1 in section; in FIG. 3 - 2nd embodiment of the claimed device; in FIG. 4 - 2nd embodiment according to FIG. 3 in section; in FIG. 5 is an embodiment with a swellable tape; in FIG. 6 is an embodiment according to FIG. 5 in section; in FIG. 7 is an embodiment with a hollow inlet; in FIG. 8 is an embodiment according to FIG. 7 in cross section; in FIG. 9 - drilled hole for the injection of sealing material; in FIG. 10 is an embodiment with a supply hose; in FIG. 11 is an embodiment according to FIG. 10 in section; in FIG. 12 is a further embodiment of the claimed docking bus for closing breaks in section.

 The claimed docking bus for closing planned gaps consists of a strip-bearing plate 1 in the form of a strip and at least one device mounted on the plate in its entire length and forming an inlet channel.

 The plate 1 is preferably made in the form of a sheet, i.e. it is made of thin-walled, flat material with a certain own rigidity. The busbar plate 1 in the form of a strip has two long lateral longitudinal edges 1a, one upper and one lower transverse edge 1b, and two plane edges of the plate 1c bounded by edges 1a and 1b.

 The device forming the inlet channel 2 may be a conventional inlet channel or a sealing device having in cross section an open, lid-shaped profile that fits with the free longitudinal edges of its side regions onto the plane of the plate 1c. As the device forming the inlet channel 2, the most favorable can be a strip of foam 12 with open cells or pores.

 The plate 1 has a width, preferably slightly less than the thickness of the concrete wall, so that it can be concreted at a distance of 1 to several centimeters from the outer surface of the wall. The cross section can also be reduced by using triangular slats placed externally on the wall surface. The length of the plate 1 should correspond approximately to the height of the wall, so that the plate 1 before starting the concreting process can be installed on the section 3 of the base plate and reach the upper boundary of the concrete wall.

 The foam 12 preferably has an almost rectangular cross-section, and its cross-sectional area should be chosen so that the foam cannot be pressed together with adjacent concrete and allow the feed material to pass through, and it should not be too large so that the volume filled with the incoming material remains small. In addition, when using inlet ducts with too large a cross-section, there is a risk that at high leaks when supplying the sealing material, sufficient pressure cannot be created to provide the necessary seal.

 The foam 12 is preferably an open-cell foam, consisting of a rigid synthetic material, so that the foam 12 has a certain intrinsic stiffness.

 The plate 1 preferably has a perforation 5 in the area of contact with the foam 12, so that the supplied sealing material can pass through the plate 1.

 Foam strips 12 can be provided on both sides of the plate 1, or on both planes of the plate 1c, so that inlet channels 2 are formed on both sides of the sheet 1. Both foam strips 12 should not be connected to each other, and the perforated holes 5 on the sheet 1 located between the strips of foam, make it possible to equalize the pressure when applying the sealing material and allow you to choose a smaller cross-sectional area or the thickness of the strips of foam, since the violation of the function of the strip in one place the foam 12 can be compensated by using a parallel channel located on the other side of the sheet. The strip or strips of foam 12 are preferably located in the center of the cross section of the plate 1c.

 And in the presence of perforation 5 and one single strip of foam as a device for forming the inlet channel 2, and in the presence of two stripes of foam 12, it is achieved that both channels through which water passes along both planes of the plate 1c are sealed.

 The device forming the inlet channel 2 can also be located on one of the longitudinal side edges 1a of the plate 1, here, however, the formed inlet channel 2 is located near the wall surface, so that there is a risk of the feed material coming out of the wall in a short way and cannot be pressure is created to create a seal.

 The busbar plate 1 is a thin-walled element that can be made of plastic or metal. The strip of foam 12 and the plate 1 are interconnected, preferably by gluing.

 The plate 1 is either a plate element (Figs. 1 and 2), or it can also have a contour (Figs. 3 and 4) to accommodate part or all of the foam strip 12 in it. Due to its contour, the plate 1 has greater rigidity and provides foam protection against the pressure exerted by the wall 4 through the adjacent concrete, since the lateral sides or the lateral surfaces 8 of the foam and one of the two surfaces 9 of the foam 12 running parallel to the joint are covered with sheet 1. This area of the sheet 1 covering the foam 12 may be perforated bath holes 5, which can be on one or all three side walls surrounding the foam 12.

 Installation of the claimed docking bus for closing planned breaks occurs by installing the docking bus in the formwork area of the concrete wall. In this case, the connecting bus is installed on the foundation plate on which the concrete wall is to be erected, with the busbar plate 1 standing approximately vertically relative to the lateral surfaces of the concrete wall 4. After laying the concrete in the sealing channel formed by the foam strip 12, sealing material is supplied, which then to the edges fills the seam formed during the hardening process. The supply of sealing material can then occur when the next section 11 is placed on the wall 4 with the docking bus installed on it, which seals the inlet channel 2 in the upper direction. Then, the inlet channel 2 is drilled from the outside, and sealing material is injected through the drilled hole 10 (FIG. 9). If the foam strip 12 at the end is open, then the supply hose at the top can abut against the foam strip 12, with the foam end of the foam strip 12 being open at the top and sealed around the feed hose so that the feed can be injected under pressure.

 Advantageously, the claimed docking bus can also be used to close the planned breaks with the busbar plate 1 and a foam strip 12 placed on it in combination with a swelling tape 6 (Figs. 5 and 6). The swellable tape 6 should be placed on at least one side, preferably on both sides of the plate 1, along its entire length. After completion of the work, it is ascertained whether the swellable tape provides the necessary seal in the area of the joint 7. If so, then additional injection of the sealing material can be abandoned. If, however, still existing leaks are detected, then at any time after drilling the holes of the inlet channel 2, it is possible to inject sealing material and seal the joint. Additional injection of the sealing material occurs by drilling a hole in the inlet and injecting the sealing material. Thus, with the use of swellable tapes there is no risk, since the density can subsequently be restored at any time. This also allows the use of swelling tapes with a relatively limited thickness, which in most cases provide sufficient compaction. Thus, the costs of using relatively expensive swellable tapes do not exceed reasonable limits, which in combination with polystyrene, an inexpensive material compared to a swellable tape, is generally a cost-effective solution to the problem without the risk of having an unconsolidated joint that could not be subsequently condense.

 The above-described device strips of foam 12, the location of the strips of foam 12 relative to swelling tapes 6 or perforated holes 5 can be performed in the same way with other devices forming the inlet channel 2.

 Another advantageous embodiment is a busbar plate 1 having a hollow inlet channel 2, which is completely surrounded by two side and one front and rear walls 16, 17, 18, 19 of the plate and releases the sealing material through the holes 5 to the outside (Fig. 7 and 8) . The hollow inlet channel 2 can be filled either with a strip of foam 12, or the perforated holes 5 can be protected from penetration of concrete during concreting using non-woven material or foam or other similar material capable of passing sealing material. Perforated holes 5 can also be placed on the side surfaces of the inlet channel 2, and their location and size can be selected in accordance with the used sealing materials and concrete. However, it is necessary that the sealing material can extend on both sides of the plate 1 in order to ensure that the joint is fully sealed during its feeding.

 Instead of a strip of foam, you can also use a conventional supply hose as a device forming an inlet channel. When using a conventional feed hose with a circular cross-section, preferably two feed hoses are used on both sides of the busbar plate, or perforated holes are formed in the form of elongated holes so as to create conditions for sufficient passage of the sealing material through the plate.

 If you want to install only one single supply hose 13 on the perforated plate 1, you can also preferably use one supply hose, which consists of a section 14 in the form of a hose and a base 15 in the form of a tape, with the base 15 being installed in the area of the perforated holes 5 of the plate 1 ( Fig. 10 and 11). The base 15 is provided with openings for the exit of the sealing material. This is new compared to conventional feed hoses with a tape as a base, when such a base serves only as a locking element for easier placement of the feed hose in the sealing area. Due to this arrangement, it is achieved that the sealing material supplied to the hose 13 enters from it into the concreting area in which the hose is located, and along the tape 15, which is the base and preferably made of the same material as the portion of the hose 14, and through perforated holes 5 enters the other side of the plate 1 in order to fill the voids there.

 In FIG. 12 shows the following embodiment of the claimed docking bus for closing planned breaks in section.

 The tire-bearing plate 1 of such a docking bus is located symmetrically with respect to the center of the transverse axis 20, in the center of the transverse axis of the plate 1 there is a device for forming an inlet channel divided into three parts, i.e. a hollow channel 2a located in the center and two side strips of foam 12 forming a separate region 2b of the inlet channel. The hollow channel 2a has a rectangular cross-section and is bounded by two side walls 21 and one upper and lower walls 22, 23. The side walls 21 are located at a limited distance from each other, approximately corresponding to the thickness of the material from which the plate 1 is made in the form of a sheet.

 The upper and lower walls 22, 23 pass on both sides through the side walls 21, so that the upper and lower walls 22, 23 form with the side walls 21 open sideways grooves for receiving strips of foam. Perforated openings 5 are provided in both side walls 21 so that the hollow channel 2a communicates with the foam strips 12. The holes in the side walls 21 can be eccentric, so that shown in FIG. 12, the cross section of the plate 1 refers only to the right side wall 21 with perforated holes 5. In order to stiffen the connecting rail designed to seal the gaps, the busbar plate 1 is provided with rigid partitions 24, which are respectively made as partitions connected vertically to the planes of the plate 1c and located along the entire length of the plate 1.

 Partitions 24 for stiffening contribute to lengthening the path in the gap along which water enters, so that not only the rigidity of the plate 1 is increased, but also a better seal is achieved.

Claims (20)

 1. A splint bus for installation in a concrete wall to close up the planned breaks, and the splint bus for closing the planned breaks is formed from a busbar plate 1 having the form of a strip, with a device placed on it forming an inlet channel 2 and extending along the entire length of the plate 1 characterized in that the plate 1 has a perforation 5 in the region of the device forming the inlet channel 2.  2. The connecting tire according to claim 1, characterized in that on both sides of the plate 1 there is a device located along the entire length of the plate 1 and forming the inlet channel 2.  3. Docking tire according to claim 1 or 2, characterized in that the plate 1 is made of a thin-walled plastic part.  4. Docking tire according to claim 1 or 2, characterized in that the plate 1 is made of zinc sheet.  5. Docking tire according to one of claims 1 to 4, characterized in that on the plate 1 there is a swellable tape 6 located approximately parallel to the device forming the inlet channel 2.  6. The connecting tire according to claim 5, characterized in that the swelling tape 6 is located on the lateral longitudinal edge of the tire-bearing plate 1.  7. Docking tire according to claim 5 or 6, characterized in that the swelling tape 6 is adjacent to the device forming the inlet channel 2.  8. Docking tire according to one or more of claims 5-7, characterized in that a swelling tape 6 is located on both sides of the plate 1.  9. Docking tire according to one or more of claims 1 to 8, characterized in that the device forming the inlet channel 2, the plate 1 and / or the swellable tape 6 and the plate 1 are interconnected by gluing.  10. Docking tire according to one or more of claims 1 to 9, characterized in that the device forming the inlet channel 2 is a strip 12 of foam with open cells, preferably made of rigid material.  11. The connecting tire according to claim 10, characterized in that in the area of the strip of foam 12, the plate 1 has a contour in which at least part of the strip of foam 12 is placed.  12. The connecting tire according to claim 11, characterized in that the contour of the plate 1 surrounds the strip of foam 12 from its three longitudinal sides.  13. Docking tire according to one or more of claims 1 to 9, characterized in that the device forming the inlet channel 2 is an integral hollow channel 2a located on the tire-bearing plate 1.  14. Docking tire according to item 13, wherein the hollow channel 2A is covered respectively by a strip of foam 12, and the hollow channel 2a is in communication with the strips of foam 12.  15. Docking tire according to one or more of claims 1 to 9, characterized in that the device forming the inlet channel 2 is a supply hose 13.  16. The connecting tire according to item 15, wherein the supply hose 13 consists of a portion of the hose 14 and of the tape-shaped portion of the base 15, which is located in the perforation 5 of the plate 1.  17. Docking tire according to one or more of claims 1 to 15, characterized in that the busbar plate 1 is made of thin-walled material having its own stiffness.  18. Docking tire according to one or more of claims 1-17, characterized in that the device for forming the inlet channel 2 is located in the center of the cross section of the plate 1.  19. A method of installing a docking tire for sealing gaps according to one or more of claims 1-18, characterized in that the docking tire for sealing gaps is placed in the area of the concrete wall and is positioned along the entire height of the wall, and that after concreting the wall into the formed inlet channel 2 inject the sealing material.  20. The method according to claim 19, characterized in that for the injection of the sealing material, the inlet channel is drilled from the outside.

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