Sealing device for sealing concrete joints and method of its manufacture (options)
(57) Abstract:The invention relates to the construction, in particular for concrete joints. The technical result of the invention consists in the reliability of sealing joints. The sealing device to seal the joint formed between two sections of concrete embedded in these sections so that it is perpendicular to the adjacent surfaces of the joint, is formed on a section of concrete in front of each other, and the sealing element is made of solid plastics in the form of thin joint plate in the form of a strip, and the spatial configuration and the thickness of the walls of this bar is selected so that it is self-supporting. As hard plastics are preferably used thermoplastic plastic, in particular a high-pressure polyethylene, which is stable in respect of shape in the temperature range from -20 to +80oC. 2 C. and 13 C.p. f-crystals, 12 ill. The invention relates to a sealing device for sealing concrete joints.To seal the joints formed between two adjacent to each other butt surfaces of the two sections of concrete, it is known the use of sheet Polo is concreting the valve using tie-wire or similar means, or inserted into a suitably form the installation grooves on the valve, so that the sheet strips are approximately perpendicular to the resulting joint surfaces and approximately symmetrically with respect to them. Sheet strip then poured in sections of the concrete so that it covers the joint and prevents the penetration of moisture through the joint.Typically used sheet strip width of about 300 mm or more and a thickness of from 3 to 4 mm. Separate sheet strip cut and pre-formed in the shop and are connected to each other at the construction site using welding and brazing. Incorrectly prepared sheet strip cannot be immediately processed at the construction site, causing improper preparation of sheet strips due to the new processing plant install sections of concrete can be very lengthy. Sheet strip corrode, unless you use stainless sheet, which, however, are poorly connected with concrete. For a good connection between the sheet strip and concrete are used so predominantly covered with a coating of rust sheet strip, as by this achieves a better connection between the sheet and the concrete. Correlating sheet strip, however, in the long term not the s and width have a significant weight, as a consequence, the lifting and installation made for long sections of concrete sheet strip may need a crane. In addition, the sheet strips are applied only in the form of flat elements, as a particular spatial form is associated with significant cost.Connected to each other by welding or brazing sheet strip is particularly susceptible to corrosion at locations of seams, which represent a significant risk in relation to leaks.The advantage of sheet strips is that they do not have to be installed forward of the first concreting, and can be also soon after pouring the first section of concrete embedded in another viscous liquid concrete. However, the concrete should be compacted in the field of sheet metal strip to provide a satisfactory connection between the concrete and sheet strip, and thereby a satisfactory seal.In conclusion, it should be noted that although the sheet bars can be a simple image is fixed on the valve or subsequently pressed into the still viscous liquid concrete, and work with them when cutting, bending and joining is expensive, and Thu the leaks.To seal the joint between the two adjacent surfaces of the two sections concreting shall also apply joint tape of elastic material. For effective sealing cross-section butt strips formed by the labyrinth principle, and butt tape provided with a trapezoidal or triangular cross-sectional grooves that cause the lengthening of the path of moisture while reducing pressure.Proper installation of the joint tape is a condition for the exercise of their functions in particular should ensure direct contact with the concrete. When the installation is higher loading butt tape, which should be taken great pains to avoid in this phase, the local congestion due to the stretching, bending or buckling. So, joint tape, except for a narrow outer edge strips, which are provided only for this purpose should not be killed by the nails. Especially should pay attention to the fact that elastic shelf butt tape is not lean and not formed in the concrete cavities, which can hardly be sealed afterwards. As a consequence, can be formed, in particular, hollow space, plate butt tape over relatively short periods provided in section concrete reinforcement, so make sure to avoid tilting. Satisfactory density can be achieved only if the joint tape embedded in concrete. Shelves horizontally passing the joint tape should be stretched up to an angle of about 15oin order to avoid air inclusions in the concrete on the underside of the butt straps.Butt tapes are delivered to the construction site in the form of rolls and may be due to their flexibility, is easy to fit to the line interface. They are cut at the construction site and are connected to each other by means of vulcanization. Vulcanization is performed using special presses by adding raw material and heating under pressure. However, at the construction site can be made only direct connections, resulting in large subsystem, in which segments of butt strips all building sections are brought together with all intersections and branches, are delivered to the construction site in a pre-prepared form. There are, however, sets a rectangular shaped parts, which, however, is not sufficient for complete sealing system, due to which you should pay attention to constructive elaboration shaped de is th that butt tape can be processed on a construction site with a simple rectilinear or rectangular building sections, however, for more complex building structures, they must be scheduled in advance, and fittings butt tapes should be prepared beforehand. In addition, the necessary significant costs when fixing the butt tape on the valve, or by improper fixing, there is a risk that butt tape leans back, which causes the hollow space, porous or void.To resolve the above-mentioned technological problems have been developed joint tape with the side sheet strips, in which the sheet strip vulcanized in the butt tape. Butt tape of this type do require large expenditures, therefore, are expensive and contain when handling the same problems as discussed above sheet strip. Also known installation on both longitudinal side edges attached to the butt tape sheet strips in each case one injection hose, which allows the subsequent introduction of the sealing material in the region of the junction. Injection seal the Aulnay side edges.In European patent application EP 0 418 699 A1 describes a sealing device for injection of a sealing material in the region of the joint, consisting of an open cross-sectional profile, which is made in the form of a cap and which firmly establish the longitudinal edges of its lateral parts on the surface of the concrete, so that between the profile and the concrete surface is formed a flow channel for the sealing material. The sealing material is injected under high pressure into a flow channel and penetrates between the free edges of the profile on the outer surface of the concrete in its defective. The following described therein the sealing device consists of a casing made of having through pores of the foam or foam tape, preferably of rectangular cross-section, which is installed with the fit on the outer surface of the concrete, so directly in the housing is formed a flow channel for the sealing material and the sealing material is seeping out through pores in the region of the joint.Also known sealing hoses, described, for example, in CH-PS 600 077, which consist of the reference frame in the form of helical springs, which is surrounded by the first op is setting these hoses and fill the second section concreting in hose sealing device under pressure supplied to the sealing material, which must penetrate into the defective place concrete.Further, for sealing concrete joints are also expanding tape, which swell under the action of water. Expanding substance is hydrophilic mass introduced into the media, mainly chloroprene rubber. The carrier has first and foremost task to give the expanding substance stability and elasticity. Hydrophilic (water-absorbent) component absorbs water molecules, and consequently, its volume increases by 1.5-4 times. When this occurs the pressure of 6.5 bar, which fills the surrounding cavity and should therefore prevent the penetration of moisture. With the expanding use of such funds should be aware that swell the mass expands immediately, but after a few hours or days, and can therefore only partly be applied to the alternation of wet and dry periods. An outstanding advantage of the expanding tape, as a result they are often applied, is their ability to reliably seal the joints between different materials, such as concrete, plastic, concrete/iron etc.In the application of the Federal Republic of Germany DE-A-40 25 599 described sealing device for sealing the RNO adjacent surfaces of the joint, educated at the concreting sections opposite each other, and the sealing element is made of solid plastics in the form of thin joint plate in the form of a strip, and the spatial configuration and the thickness of the walls of this bar is selected so that it is self-supporting.This sealing device is intended for the tight connection of two building elements, and the sealing element is designed in the form of one substantially rigid connection components, and the device also contains at least one elastic sealing part, which is arranged in the region of the protrusion located at an axial end section of the fitting. The axial end section of the fitting is pushed in is made at the construction element of the seal groove, and an elastic sealing part, which is located on the hard connective item must provide a tight joint.When using such a sealing device for the tight connection of two building elements disadvantage is that it can be connected with the formation of a dense walls only pre-prepared, sabien the design of this building element, i.e. rigid fasteners from one of plastic and elastic sealing elements from other plastics, at the place of use may not be immediately received an arbitrary shape of the sealing device, for example, by welding. Welding or thermal forming plastic in the General case it is possible, if you use only one type of plastic.The present invention is a device for sealing concrete joints, which simply can be addressed on the construction site, which can be adapted to the specific construction tasks, and be mounted in the area of the joint and which ensures reliable sealing of concrete joints.The present invention is the creation of methods of manufacturing such a sealing device, thanks to which the proposed device can be reliably and cheaply installed in the concrete joint.The solution of this problem is provided by creating a sealing device to seal the joint formed between two sections of concrete, which is embedded in these sections, so that it is perpendicular to the adjacent surfaces of the joint, images is tmasy in the form of thin joint plate in the form of a strip, and the spatial configuration and the thickness of the walls of this bar is selected so that it is self-supporting, and butt strap drenched in both sections of concrete and has its longitudinal axis of the injection channel.Since the sealing device made in the form of joint plate in the form of a strip of hard plastic, which when it has a high rigidity, it can be installed and sealed in section concreting is as simple as known sheet strip, and handling due to lower weight significantly simplified. Butt strap can be simply adjusted by thermal molded to complex shapes, angles, curves, etc. in place using, for example, thermal dryers. Processing joint plate can be carried out on the construction site, and cut it, for example, as wood, and connect with the welding reflector or hot gluing method, so that in each case only requires a small hand tools.Compatibility of concrete or binding material with hard plastic is amazingly good and contributes to the high adhesion at the boundary surfaces. Surface sealing is OK, or similar fine-grained material, because of that connection to concrete improves.In the proposed sealing device as hard plastics can be used a thermoplastic plastic, in particular a high-pressure polyethylene, which is stable in respect of shape in the temperature range from -20oC to +80oC.Butt strap may include a flat base wall in the form of a strip and ribs protruding in the lateral direction and along the wall, so that high rigidity is achieved even at a small thickness of material.The base wall and the ribs can be of equal thickness, which is 3-6 mm, in particular from 4 to 5 mm and the ribs can be made approximately at right angles to the base wall.The height or width of the base wall may be 15-30 cm, in particular of 20-25 cm, and the ribs may have a width of approximately 0.5-2 cmButt strap in the area of its longitudinal axis can contain injection channel and/or the injection hose.The injection channel may have an approximately rectangular cross section and can be formed in the top and bottom walls and two side steenkamer to exit a sealing material. This hole can be closed foam strip with open cells, which forms the next part of the channel, parallel to the injection channel. This hole can be closed foam strip with closed cells, which has in cross section the shape of a trapezoid and contains adjacent the inside of the opening of the narrow side located outside the wide side and two passing between the narrow and wide sides sloping sides and butt strap in the area of the injection channel can have ribs that are adjacent to the inclined sides with farmasierra.Butt strap in his / her area located outside the lateral edges may be provided in each case, the expanding means, in particular the expanding tape or the growing film.Butt strap can contain four of the expanding tape, which are in each case fixed in the angular recess formed adjacent to the side edges of the sections of the joint plate and the outer ribs.Problem solving is also supported by development of a method of manufacturing a sealing device of the above described design is om, that butt strap, which is made of solid plastic thin-walled in the form of a strip, and its spatial configuration and wall thickness selected so that it is self-supporting, have sections in concrete so that it is approximately perpendicular to the adjacent surfaces of the joint, is formed on the concreting sections, and the joint plate fill in both sections of concrete.In the injection channel, which is located in the region of the longitudinal axis of the joint plate, can enter the sealing material, which protrudes through an opening in one of the two side walls.The solution of this problem is also ensured by creating another method of manufacturing a sealing device of the above-described construction, which is characterized by the fact that the butt strap is made of hard plastic, in particular of high-pressure polyethylene, can be customized to manufactured building construction on site by cutting and heat, such as hot air, and separate sections of butt strap in front of the first concreting is fixed on the armature or on the casing transversely to the resulting joint, or press after the first is ut to bend at the construction site and connect with butt straps in the form of a strip.Embodiments of the invention are explained more by means of drawings, on which:
Fig. 1-6 depict various embodiments of the proposed device in cross-section,
Fig. 7-11 depict different designs of butt strap and reinforcement elements in walls and partitions
Fig. 12 depicts another embodiment of the proposed device in cross section.The sealing device according to the invention is provided to seal the joint 2 between the two sections 3, 4 concrete (Fig.7-11) as a butt strap (Fig.1-6,12) in the form of a strip or bar of solid plastic, in particular of high-pressure polyethylene, and spatial form or dimensions are calculated so that the butt strap, made in particular from a thermoplastic rigid plastic which has its own rigidity, i.e., retains its shape straps and is pliable to bend and resistant to fracture. Solid plastic is preferably a thermoplastic plastic, which is flexible and retains its shape at temperatures from -20oC to +80oC.Butt strap 1 is relatively rigid, so that it can be delivered n is 1 can be for example, using thermal dryers or other appropriate heat source thermally formed, for example, bent and mangled along the junction of 2 erected walls and complex shapes, such as angles, curves and so on, can be easily carried out on site.A separate joint plate 1 are compiled in one long butt bar, and at their adjacent edges they are connected to each other by welding or fusing, or by gluing with hot or cold method. This requires only a small hand tools, such as welding reflector or the like, which is simple to handle and to ensure tight connection in a simple way. Joint plate 1 can be the same way compiled with the formation of intersecting or branching elements and in the same way connected to each other, so that they can be sealed with a randomly passing joints.Butt strap 1 in the manufacture of the wall area is located in the joint area between the 2 it along and perpendicular to educated on the concreting sections 3, 4 adjacent surfaces 5, 6, and preferably it is located mirror-symmetrically relative to the expected 3, 4.Before the first concreting butt strap 1, as known sheet strip is secured to the valve 9, for example, using tie-wire or the like and due to the high intrinsic rigidity of the butt strap 1 is held by itself, and therefore, and also due to its small weight can be secured through large gaps. When pouring concrete in each case, the armature 9 and the shoulder 7, 8 joint plate surrounded by the concrete of the relevant section concreting 3, 4 flush, so that the butt strap 1 when setting concrete forms tight joints and overlaps the joint for the passage of moisture. When it was unexpectedly found that the compatibility of concrete made of hard plastic, in particular polyethylene butt straps is extremely good, and due to the high adhesion to the bordering surfaces forms a rigid connection. Adhesion to adjacent surfaces between the joint plate 1 and the concrete can be improved by roughening the surface of the joint plate 1 or the introduction of silica sand or similar fine material, so that even under adverse conditions is achieved by the e execution of butt strap 1 has a base wall 12, for example, rectangular in cross-section, and projecting on both sides from the side, for example, at right angles, passing in the longitudinal direction, also, for example, rectangular in cross-section of the ribs 13 of the stiffness made it as one unit (Fig. 2, 3, 5-10). The ribs 13 of the stiffeners are preferably along the entire length of the base wall 12 and increase thus the rigidity of the joint plate 1, so that the butt strap 1 when equal to its own rigidity can be performed with a smaller wall thickness.Ribs 13 of rigidity are narrow elements in the form of wing wall thickness, which preferably corresponds to the thickness of the base wall 12. They are preferably symmetrically relative to the plane of the base wall 12 and/or symmetrically located perpendicularly to the base wall 12 of the transverse Central plane 14, in each case in the form of intersecting beams. Ribs change the path of moisture-type labyrinth seal and contribute thus to increase the tightness.The ribs 13 of the rigidity of the joint plate 1 can be performed, all of equal width (Fig. 2) or to have a different width (Fig. 3). It is advisable to perform rivermouth be provided from 4 to 8 ribs 13 of rigidity, located at a distance from each other of from about 2.5 to 5 cm Width or the height of the base wall 12 is, for example, ranging from 15 to 30 cm and is preferably from 20 to 25 cm, and the thickness is from 3 to 6 mm, preferably from 4 to 5 mm wider Than base wall 12, the more edges 13 of rigidity must be provided. Thin-walled ribs 13 of the stiffener attached to the base wall 12 at a right angle.According to the invention butt strap 1 (Fig. 1-6), for example in the area of its transverse mid-plane or in concrete interface, combined with the known per se injection channel 16, which makes possible the subsequent sealing of the working junction 2 by pushing the sealing material in the defective areas of the joint. The injection channel 16 is located between the sections 3, 4 concreting in the field of work of the joint 2, and the possible orientation towards the wet side, and from her. About the technique of injection of the sealing material can be learned from existing analogues, in particular from EP 0 418 699 A1.Formed as one injection channel 16 is limited based in each case perpendicularly side, offset from the base wall 12, and they are separated from each other by approximately the thickness of the base wall 12. Wall 18-21 thereby form a rectangular cross-section channel.In one of the side walls 20, 21 made the hole 22, through which can be injected into the sealing material. A hole 22 is a slot passing through the entire length of the joint plate 1. It may, however, also made of several vertically displaced holes, in particular, arranged in the longitudinal direction of the oblong holes so that supplied by the hole 22 of the side wall 20, 21 is rigid and provides the bearing capacity and the increase in the rigidity of a joint plate 1.The preferred bottom and top walls 18, 19 on the side of the hole 22 or on both sides extended in the form of ribs 13a rigidity, so that they, together with the adjacent side wall 21, which has a hole 22, the limit U-shaped recess or groove for placing the foam strip 23 with open cells. The foam strip 23 is filled with sealing material in the injection and forms thereby the following, which is parallel to the injection channel 16 segment Kan cells is chosen so that so when pouring the concrete did not penetrate through the opening 22 into the injection channel 16. For the injected under pressure into the injection channel 16 of a sealing material foam strip 23 is, however, permeable, so that the sealing material can spread out unwanted cavity and fill it with packing.In one special embodiment, the hole 22 of the injection channel 16 is closed foam strip 24 with closed cells, for example, from an elastic material, which is impervious to the sealing material. The foam strip 24 with closed cells has a cross-section approximately the shape of a trapezoid with the closing inside the hole 22 of the narrow side 25, which is located outside of a wide side 26 and two passing between narrow 25 and wide 26 sides sloping sides 27, 28. Limited side walls 20, 21 and the edge 13 of the stiffening groove 13A agreed in its cross-section to form a foam strip with closed cells through what in the angle between the side wall 21 and the rib 13a rigidity is made triangular in cross section of the wall 29, which form in each case, the inclined surface according to the tone is fed under pressure known per se manner and means of the sealing material, it takes like valve foam strip 24 from the inclined sides of the groove, and may spread out in the surrounding cavity. When this foam strip is compressed. At lower pressure the foam strip 24 will return to its original shape, so that it is again adjacent to the inclined sides of the groove of the joint plate 1 and again closes the opening 22 of the injection channel according to the type of gate.In addition to the injection channel 16 butt strap 1 in its middle transverse plane or in the area of the junction can also be equipped with the expanding tape 31 (Fig. 4). The expanding tape 31 posted by farmasierra formed in the base wall 12 and two located near the middle transverse plane of the ribs 13b rigidity of the U-shaped recess or groove, or a groove, one side of the base wall 12 is expanding tape 31, and on the other side of the injection channel 16. As the expanding tape 31, and the injection channel 16 are located in the middle transverse plane joint plate 1, which in assembled condition of the joint plate is in the area of juncture of the sections 3, 4 concreting.In one particularly effective and yet simple varianti longitudinal side edges or edges 32, 33 expanding means, as for example, the expanding film 34 or the expanding tape 31. The longitudinal side edges 32, 33) are the joint plate 1, which is the most deep comes in sections 3, 4 concrete, so that the probability of formation of defects or the like is extremely small, because of the expanding tool in this area is squeezed between the joint plate 1 surrounding it with concrete and ensures a tight joint even under adverse conditions.Joint plate 1 with expanding film 34 is made preferably without ribs 13 of rigidity, as on a flat shoulders 7, 8 joint plate 1 may be easier pasted the growing film. Extensible film 34 pass from lying outside the longitudinal side edges 32, 33 about the distance from 2/3 to 4/5 of the width of the shoulder joint plate 1.If a joint plate 1 are provided at their longitudinal side edges 32, 33 extending ribbons (Fig. 6), it is preferably applied joint plate with ribs 13 of rigidity, and expanding the ribbon in each case is inserted into the angular recess 35, which is formed by the outer edge 13c of the rigidity and the end region of the base wall 12. Preferably Taka is nah the base wall 12 is expanding tape 31.According to another variant implementation, butt strap has its longitudinal axis injection hose 17 (Fig. 12).The valve 9 in sections 3, 4 concreting should be located so that it does not intersect the joint plate 1 (Fig. 7-11). This can be achieved, for example, the joint between the base plate 36 and section 37 of the wall by the armature 9 of the base plate 36 in the area under the joint 2 is shifted down. The valve 9 has in cross-section, for example, U-shaped, open at the side containing the lower region 9a, the side connecting region 9b and the upper region 9c. The upper region 9c is, as usual, outside the scope of a joint, a little below the surface of the base plate 36, and it is in the direction of the field joint 2 is shifted down by steps 39 and is thus at a distance from the surface (Fig. 7). In section 37 of the wall entered the upright support 40 fittings, which are parallel to the butt strap 1, and thus it does not intersect.The distance between junction 2 and the armature 9 of the base plate 36 can also be achieved through a wall of the protrusion 41 in the form of a step on the base plate 36 (piplite 36 and passes from the base plate 36 to the top with a width and a length, which correspond to the section of the wall. This walling ledge 41 is filled lower arm 8 joint plate 1 and has enough space so that it does not interfere with passing transversely beneath the valve 9 of a base plate 36. The upper shoulder joint plate 7 1 sealed in standing on the base plate 36 section 37 of the wall.When connecting two stages 42, 43 (Fig. 11) of a base plate or wall area of the butt strap is located transversely to the interface 2 and thereby simultaneously installed in the base plate or the wall elements of the valve, so that there is no intersection valves with butt strap.To improve the adhesion between the joint plate 1 and the surrounding concrete or the surrounding binder, the surface of the joint plate 1 is attached to the roughness. The preferred manner in the surface of the joint plate 1 is introduced quartz sand or similar granular material, resulting ideal connection between the joint plate 1 and the surrounding concrete.Rectangular standardized fittings joint plate 1 according to the invention for overlapping areas or branching with three or four shoulders can be the fact, what two or three shoulder fixed in space, and fitting in the joint area is heated, so that the free shoulder can be bent to the desired angle. Curved shaped parts are joined then with butt straps 1 in the form of rods as described above. 1. The sealing device to seal the joint (2) formed between the two sections (3, 4) concrete, embedded in these sections, so that it is perpendicular to the adjacent surfaces (5, 6) joint (2) formed on the sections (3, 4) concrete facing each other, and the sealing element is made of solid plastics in the form of thin joint plate (1) in the form of a strip, and the spatial configuration and the thickness of the walls of this bar is selected so that it is self-supporting, characterized in that the butt strap (1) drenched in both sections of concrete and has its longitudinal axis injection channel (16) and/or the injection hose (17).2. The sealing device under item 1, characterized in that as solid plastics used thermoplastic plastic, in particular a high-pressure polyethylene, which is stable in respect of shape in the temperature range from -20 to +it flat base wall (12) in the form of strips and ribs (13) hardness, protruding in the lateral direction and along the wall.4. The sealing device according to p. 3, characterized in that the base wall (12) and the ribs (13) stiffness are of equal thickness, component 3 - 6 mm, in particular 4 - 5 mm5. The sealing device under item 3 or 4, characterized in that the ribs (13) hardness performed approximately at right angles to the base wall (12).6. The sealing device according to one of paragraphs.3 to 5, characterized in that the height or width of the base wall (12) is 15 - 30 cm, in particular of 20 to 25 cm, and the ribs (13) stiffness have a width of approximately 0.5 - 2 cm7. The sealing device according to one of paragraphs.1 - 6, characterized in that the injection channel (16) has an approximately rectangular cross section and is formed of upper and lower walls (18,19) and two side walls (20, 21), made in one piece with the joint plate (1), and at least one of the side walls (20, 21) has an opening (22) of the sealing material.8. The sealing device according to p. 7, characterized in that the hole (22) is closed, the foam strip (23) with open cells, which forms the next section of canal run parallel to injecti naplastovany strip (24) with closed cells, which has in cross section the shape of a trapezoid and contains adjacent the inside of the hole (22) of the narrow side (25) located outside the wide side (26) and passing between two narrow (25) and wide (26) sides sloping sides (27, 28), and butt strap (1) in the area of the injection channel (16) has an edge (13A) of rigidity that are adjacent to the inclined sides (27, 28) with farmasierra.10. The sealing device according to one of paragraphs.1 to 9, characterized in that the butt strap (1) within its area located outside of the side edges (32, 33) provided in each case, the expanding means, in particular the expanding tape (31) or the growing film (34).11. The sealing device according to p. 10, characterized in that the butt strap (1) contains four of the expanding tape (31), which are in each case fixed in the angular recess (35) formed adjacent to the side edges (32, 33) plots a joint plate (1) and outer edge (13C) stiffness.12. A method of manufacturing a sealing device according to one of paragraphs.1-11, characterized in that the joint (2), formed between the two sections (3, 4) concrete, compacted by the fact that the joint plate (1), which is made ibrani so, she is self-supporting, have in sections (3, 4) concrete so that it is approximately perpendicular to the adjacent surfaces (5, 6) joint (2) formed on the sections (3, 4) concrete, and the joint plate (1) fill in both sections of concrete.13. The method according to p. 12, characterized in that the injection channel (16), which is located in the region of the longitudinal axis of the joint plate, introducing the sealing material, which protrudes through an opening (22) in one of the two side walls (20, 21).14. A method of manufacturing a sealing device according to one of paragraphs.1 - 11, characterized in that the joint plate made of hard plastic, in particular polyethylene high pressure, adjust to manufactured building structure in place by sawing and / or heat exposure, for example, hot air, and separate sections of butt strap in front of the first concreting is fixed on the armature or on the casing transversely to the junction formed or press after the first concreting in the still-frozen viscous concrete.15. The method according to p. 12, characterized in that rectangular fittings butt strap (1) bend at the construction site and
FIELD: protective arrangements for foundations or foundation structures, particularly watertight packings.
SUBSTANCE: packing mat comprises base, open-cell foam plastic material connected to the base and covering web. Opened foam plastic cells are filled with swelling clay. Covering web is connected to the base by means of seams. The base and the foam plastic material are made as a single sheet having 3-10 mm thickness. The sheet has sealed shell arranged from the first sheet side and opened cells located from another sheet side. Cell lengths, widths and depths are from 1 mm to nearly 10 mm. Packing mat production method is also disclosed.
EFFECT: increased time of clay drying, prevention of crack formation in clay layer.
8 cl, 3 dwg
SUBSTANCE: universal sealing gasket, preferably for making hydraulic locks, packing of deformation joints, comprises core of elastic heat-, noise-, vibration-isolating material, which includes a layer of uncured sealant and anti-adhesive technological coating, which occupies a part of surface. Sealing gasket is equipped with steam isolation pad of flexible material with free peripheral elements fixed on surface without technological coating, at the same time there is a layer of uncured sealant is applied along edges of external surfaces of peripheral elements.
EFFECT: application of universal sealing gasket considerably increases reliability of deformation joints and field joints sealing, reduces number of operations required to pack deformation joints, cost and consumption of construction materials.