EP0501004A1 - Seal for joint, and method of installing same seal - Google Patents
Seal for joint, and method of installing same seal Download PDFInfo
- Publication number
- EP0501004A1 EP0501004A1 EP91114843A EP91114843A EP0501004A1 EP 0501004 A1 EP0501004 A1 EP 0501004A1 EP 91114843 A EP91114843 A EP 91114843A EP 91114843 A EP91114843 A EP 91114843A EP 0501004 A1 EP0501004 A1 EP 0501004A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal
- inner core
- core layer
- penetrating openings
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6816—Porous tubular seals for injecting sealing material
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B2001/6818—Joints with swellable parts
Definitions
- the present invention relates to a seal for a joint to be installed at the time of placing of concrete for a structure, and relates to a method of installing the seal.
- the present invention was made in consideration of the problems mentioned above. Accordingly, it is an object of the invention to provide a seal for a joint which is composed of inexpensive structural materials in a simple manner so as to cope well with internal cavities at an near the joint and which performs a secondary sealing function as well as a primary sealing function.
- the seal provided in accordance with the present invention is characterized by comprising a cylindrical inner core layer made of a water-unexpansible flexible material and having an internal opening; and an outer coating layer which is made of a water-expansible rubber, coats the inner core layer and has penetrating openings in the form of slits, pinholes or the like, which penetrating openings extend to penetrating openings in the inner core layer and communicate with the internal opening of the inner core layer through the penetrating openings of the inner core layer.
- the method provided in accordance with the present invention is characterized in that the seal is disposed at the position of the joint of placed concrete; the concrete is placed; and a filling material is thereafter injected, under pressure, into the gap between the outside surface of the seal and the placed concrete through the internal opening of the inner core layer of the seal and the penetrating openings of the inner and the outer layers so that the filling material is solidified.
- Figs. 1 and 2 show a seal 1 for a joint.
- the seal 1 comprises a cylindrical inner core layer 2 having an internal opening 2a which is made of a flexible material such as a water-unexpansible rubber or plastic, and an outer coating layer 3 made of a water-expansible rubber which coats the inner layer.
- the water-expansible rubber for the outer coating layer 3 is produced by adding a vulcanizing agent, a vulcanization accelerator, a filler, a plasticizer, an antioxidant and a water-expansible resin to Neoprene rubber, natural rubber or halogenated butyl rubber.
- the vulcanizing agent is sulfur, magnesium oxide or the like, the vulcanization accelerator thiazole, imidazolo or the like, that the plasticizer is stearic acid, process oil or the like, the antioxidant amine, phenol or the like, and that the filler is calcium carbonate, magnesium oxide, carbon black, hard clay, zinc white or the like.
- the water-expansible resin is a urethane resin capable of being swollen with water, a polyvinyl alcohol capable of being swollen with water, an acrylic resin capable of being swollen with water, or the like.
- the outer coating layer 3 has penetrating openings 4 shown as slits extending in the longitudinal direction of the layer and located at alternated positions in the circumferential direction thereof.
- the openings 4 penetrate the outer coating layer 3, and communicate with the internal opening 2a of the inner core layer 2 through the penetrating openings thereof.
- the diameter of the internal opening 2a and the pressure and hardness of the inner and the outer layers 2 and 3 are set so that the internal opening is not closed due to the pressure of concrete or the pressure of the water-expanded outer layer when the concrete is placed on the seal 1.
- a method for installing the seal 1 during placement of the concrete to make the joint is described with reference to Figs. 3, 4 and 5 below.
- a vessel a for example, is to be made of concrete
- the concrete is placed so that the lower portion a1 of the vessel is first made from the concrete.
- the seal 1 is then disposed on the top of the lower portion a1 of the vessel a along the entire periphery thereof.
- the top of the lower portion a1 may be made of surfaces of different heights so that the seal 1 can be disposed more precisely and easily on the top thereof.
- the seal 1 is secured to the top by an adhesive or nails 5 shown in Fig. 4.
- Molding members b and c are then provided outside and inside the lower portion a1 of the vessel a.
- a tube 6 is removably inserted into the internal opening 2a of the seal 1 at one end thereof in such a manner that one end portion of the tube extends outside the molding members b and c. Concrete is then placed again so that the upper portion a2 of the vessel a is formed. During the solidification of the concrete, the outer coating layer 3 of the seal 1 is expanded with water so as to remove internal cavities in the concrete in order to generate a primary sealing state.
- Solidifiable liquid filling material 7 such as a silica grout and cement milk is then injected, under pressure, into the internal opening 2a of the seal 1 through the tube 6 so that the penetrating openings 4 of the seal are enlarged by the pressure, and the filling material spreads into the gap between the outside surface of the seal and the concrete and into internal cavities in the concrete and fills the gap and the cavities in order to generate a secondary sealing state.
- the injection of the filling material 7 is performed when a water leak is found after the concrete placed for the upper portion a2 of the vessel a has solidified.
- the injection of the filling material 7 may be omitted if a water leak is not found.
- the seal 1 is installed in the concrete vessel a as described above, the present invention is not confined to this method but also applies to a method whereby the seal is installed in a different concrete structure such as a pool or a reservoir.
- the penetrating openings 4 are provided in the seal 1 so as to extend in the longitudinal direction thereof, because if the openings extended in the circumferential direction thereof, they would be enlarged at the bent portions of the seal so as to allow the concrete to enter into the internal opening 2a of the seal. Therefore, it is preferable that the angle between the direction of each penetrating opening 4 and the longitudinal direction of the seal 1 is not more than 45 degrees.
- Fig. 6 is a sectional view showing the state in which a seal material 11 is applied according to another embodiment of the invention.
- the seal 11 is integrally provided on both sides of its bottom portion with flanged portions 18.
- the flanged portions 18 are fixed to the end face of the vessel by inserting fastening members such as nails 5 thereinto.
- reference numeral 12 denotes an inner core layer
- numeral 13 denotes an outer coat.
- Fig. 7 is a sectional view showing the state in which a seal 111 is applied according to still another embodiment of the invention.
- the portions into which the fastening members 5 should be inserted are clearly indicated, and hence it is possible to insert the fastening members 5 at both end portions in an exact manner with ease. Furthermore, since the fastening members 5 would not penetrate the hollow opening 2a, it is advantageous that the effective opening area of the hollow opening is not decreased.
- a seal for a joint is composed of an inner core layer made of a water-unexpansible flexible material and having an internal opening, and an outer coating layer made of a water-expansible rubber which coats the inner core layer and is provided with penetrating openings through which a filling material can be easily introduced into concrete. For that reason, expanding the outer coating layer to remove internal cavities in the placed concrete to generate a primary sealing state, and introducing the filliing material into the concrete to generate a secondary sealing state, can be performed with a simple arrangement at lower cost.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Water Supply & Treatment (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Motor Or Generator Frames (AREA)
- Seal Device For Vehicle (AREA)
- Making Paper Articles (AREA)
- Sealing Material Composition (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Gasket Seals (AREA)
Abstract
Description
- The present invention relates to a seal for a joint to be installed at the time of placing of concrete for a structure, and relates to a method of installing the seal.
- In joints of a concrete structure, the problem arises that a water passage is formed due to the secondary fluctuation of the joint or the coarseness or porosity of the placed concrete, which allows water to leak through the passage. To prevent the water leak, a rubber seal is conventionally provided at the joint. It has also been proposed to install a water-expansible seal in the joint to prevent the water leak.
- However, in the conventional seals mentioned above, the problem arises that it is difficult to safely cope with internal cavities in the concrete stricture at and near the joint so as to surely prevent the water leak.
- The present invention was made in consideration of the problems mentioned above. Accordingly, it is an object of the invention to provide a seal for a joint which is composed of inexpensive structural materials in a simple manner so as to cope well with internal cavities at an near the joint and which performs a secondary sealing function as well as a primary sealing function.
- It is another object of the present invention to provide a method of installing such a seal for a joint so as to completely produce not only a boundary sealing effect but also an additional capability to stop water.
- The seal provided in accordance with the present invention is characterized by comprising a cylindrical inner core layer made of a water-unexpansible flexible material and having an internal opening; and an outer coating layer which is made of a water-expansible rubber, coats the inner core layer and has penetrating openings in the form of slits, pinholes or the like, which penetrating openings extend to penetrating openings in the inner core layer and communicate with the internal opening of the inner core layer through the penetrating openings of the inner core layer.
- The method provided in accordance with the present invention is characterized in that the seal is disposed at the position of the joint of placed concrete; the concrete is placed; and a filling material is thereafter injected, under pressure, into the gap between the outside surface of the seal and the placed concrete through the internal opening of the inner core layer of the seal and the penetrating openings of the inner and the outer layers so that the filling material is solidified.
- Exemplified embodiments of the present invention are described in detail below with reference to the drawings, in which:
- Fig. 1 is a perspective view of an embodiment of a seal for a joint according to the present invention;
- Fig. 2 is a partial, longitudinal sectional view of the seal according to Fig. 1;
- Fig. 3 is a perspective view showing the state in which the seal is disposed at the joint when concrete is placed;
- Fig. 4 is a sectional view showing the state in which the concrete is placed after the seal is disposed in the joint;
- Fig. 5 is a sectional view showing the state in which a filling material is introduced after the concrete is placed;
- Fig. 6 is a sectional view showing another embodiment of a seal for a joint according to the invention;
- Fig. 7 is a sectional view showing still another embodiment of a seal for a joint according to the invention.
- Figs. 1 and 2 show a
seal 1 for a joint. Theseal 1 comprises a cylindricalinner core layer 2 having aninternal opening 2a which is made of a flexible material such as a water-unexpansible rubber or plastic, and anouter coating layer 3 made of a water-expansible rubber which coats the inner layer. The water-expansible rubber for theouter coating layer 3 is produced by adding a vulcanizing agent, a vulcanization accelerator, a filler, a plasticizer, an antioxidant and a water-expansible resin to Neoprene rubber, natural rubber or halogenated butyl rubber. It is preferable that the vulcanizing agent is sulfur, magnesium oxide or the like, the vulcanization accelerator thiazole, imidazolo or the like, that the plasticizer is stearic acid, process oil or the like, the antioxidant amine, phenol or the like, and that the filler is calcium carbonate, magnesium oxide, carbon black, hard clay, zinc white or the like. The water-expansible resin is a urethane resin capable of being swollen with water, a polyvinyl alcohol capable of being swollen with water, an acrylic resin capable of being swollen with water, or the like. - The
outer coating layer 3 has penetratingopenings 4 shown as slits extending in the longitudinal direction of the layer and located at alternated positions in the circumferential direction thereof. Theopenings 4 penetrate theouter coating layer 3, and communicate with theinternal opening 2a of theinner core layer 2 through the penetrating openings thereof. The diameter of theinternal opening 2a and the pressure and hardness of the inner and theouter layers seal 1. It is preferable that the hardness of the rubber for theinner core layer 2, the thickness of theouter layer 3 and the width and length of each of thepenetrating openings 4 and 50 degrees or more, about 2 to 30% of the diameter of theseal - As a result, a liquid is prevented from entering into the
internal opening 2a from outside theseal 1, and a filling material is allowed to flow out from the seal through theslits 4. Pinholes may be provided instead of theslits 4. One edge of the cross section of theseal 1 is made straight and the other edge of the cross section is roundly curved so that the installation of the seal in the joint of the concrete is improved. - A method for installing the
seal 1 during placement of the concrete to make the joint is described with reference to Figs. 3, 4 and 5 below. When a vessel a, for example, is to be made of concrete, the concrete is placed so that the lower portion a1 of the vessel is first made from the concrete. Theseal 1 is then disposed on the top of the lower portion a1 of the vessel a along the entire periphery thereof. The top of the lower portion a1 may be made of surfaces of different heights so that theseal 1 can be disposed more precisely and easily on the top thereof. Theseal 1 is secured to the top by an adhesive ornails 5 shown in Fig. 4. Molding members b and c are then provided outside and inside the lower portion a1 of the vessel a. Atube 6 is removably inserted into theinternal opening 2a of theseal 1 at one end thereof in such a manner that one end portion of the tube extends outside the molding members b and c. Concrete is then placed again so that the upper portion a2 of the vessel a is formed. During the solidification of the concrete, theouter coating layer 3 of theseal 1 is expanded with water so as to remove internal cavities in the concrete in order to generate a primary sealing state. Solidifiable liquid filling material 7 such as a silica grout and cement milk is then injected, under pressure, into theinternal opening 2a of theseal 1 through thetube 6 so that thepenetrating openings 4 of the seal are enlarged by the pressure, and the filling material spreads into the gap between the outside surface of the seal and the concrete and into internal cavities in the concrete and fills the gap and the cavities in order to generate a secondary sealing state. The injection of the filling material 7 is performed when a water leak is found after the concrete placed for the upper portion a2 of the vessel a has solidified. The injection of the filling material 7 may be omitted if a water leak is not found. - Although the
seal 1 is installed in the concrete vessel a as described above, the present invention is not confined to this method but also applies to a method whereby the seal is installed in a different concrete structure such as a pool or a reservoir. - The
penetrating openings 4 are provided in theseal 1 so as to extend in the longitudinal direction thereof, because if the openings extended in the circumferential direction thereof, they would be enlarged at the bent portions of the seal so as to allow the concrete to enter into theinternal opening 2a of the seal. Therefore, it is preferable that the angle between the direction of eachpenetrating opening 4 and the longitudinal direction of theseal 1 is not more than 45 degrees. - Fig. 6 is a sectional view showing the state in which a
seal material 11 is applied according to another embodiment of the invention. - The
seal 11 is integrally provided on both sides of its bottom portion with flangedportions 18. The flangedportions 18 are fixed to the end face of the vessel by inserting fastening members such asnails 5 thereinto. In Fig. 6,reference numeral 12 denotes an inner core layer, andnumeral 13 denotes an outer coat. - Fig. 7 is a sectional view showing the state in which a seal 111 is applied according to still another embodiment of the invention.
- In the seal 111, no coating
outer layer 113 is applied to an outer peripheral portions of flangedportions 118. In Fig. 7,numeral 112 denotes an inner core layer. - According to the embodiments shown in Figs. 6 and 7, the portions into which the fastening
members 5 should be inserted are clearly indicated, and hence it is possible to insert the fasteningmembers 5 at both end portions in an exact manner with ease. Furthermore, since the fasteningmembers 5 would not penetrate thehollow opening 2a, it is advantageous that the effective opening area of the hollow opening is not decreased. - The
seale 11 and 111 shown in Figs. 6 and 7 were fixed by nails, and thereafter the secondary concrete was applied to theseals 11 and 111. Then, the vessel had been left in the water for two months. As a result, it was confirmed that there was no clogging of the central opening (hollow opening) and there was no clogging of the hole due to the expansion of the outer coat. Thereafter, when chemical grout fillings was introduced from the end of the opening under the pressure of 2kg/cm, it was found that the grout fillings spread into the concrete around the seals. Thus, it was possible to fill the fillings into the opening. - The structure and effect other than those described above are the same as those of the first embodiment.
- According to the present invention, a seal for a joint is composed of an inner core layer made of a water-unexpansible flexible material and having an internal opening, and an outer coating layer made of a water-expansible rubber which coats the inner core layer and is provided with penetrating openings through which a filling material can be easily introduced into concrete. For that reason, expanding the outer coating layer to remove internal cavities in the placed concrete to generate a primary sealing state, and introducing the filliing material into the concrete to generate a secondary sealing state, can be performed with a simple arrangement at lower cost.
Claims (4)
- A seal for a joint, characterized by comprising a cylindrical inner core layer made of a water-unexpansible flexible material and having an internal opening; and an outer coating layer which is made of a water-expansible rubber, coats the inner core layer and has penetrating openings in the form of slits, pinholes or the like, which penetrating openings extend to penetrating openings in the inner core layer and communicate with the internal opening through the penetrating openings of the inner core layer.
- The seal according to claim 1, wherein said inner core layer is integrally provided on sides of a bottom thereof with flanged portions.
- A method of installing a seal for a joint, characterized in that the joint comprises a cylindrical inner core layer made of a water-unexpansible flexible material and having an internal opening, and an outer coating layer which is made of a water-expansible rubber, coats the inner core layer and has penetrating openings which are slits, pinholes or the like, which penetrating openings extend to penetrating openings in the inner core layer and communicate with the internal opening through the penetrating openings of the inner core layer, characterized in that the seal is disposed at the position of the joint of placed concrete; the concrete is placed; and a filling material is thereafter injected, under pressure, into the gap between the outside surface of the seal and the placed concrete through the internal opening and the penetrating openings of the inner and outer layers so that the filling material is solidified.
- The method according to claim 3, wherein said seal is fixed to an end face of the concrete by inserting fastening members into flanged portions formed on sides of a bottom of said seal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3119583A JPH0774513B2 (en) | 1990-03-02 | 1991-03-01 | Joint sealant and its construction method |
JP119583/91 | 1991-03-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0501004A1 true EP0501004A1 (en) | 1992-09-02 |
EP0501004B1 EP0501004B1 (en) | 1997-12-03 |
Family
ID=14764957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91114843A Expired - Lifetime EP0501004B1 (en) | 1991-03-01 | 1991-09-03 | Seal for joint, and method of installing same seal |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0501004B1 (en) |
AT (1) | ATE160837T1 (en) |
DE (2) | DE9117062U1 (en) |
FI (1) | FI98645C (en) |
IS (1) | IS3749A7 (en) |
NO (1) | NO179846C (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994018398A1 (en) * | 1993-02-01 | 1994-08-18 | Bjarne Sem | Injection system for sealing joints in concrete structures |
EP0646681A2 (en) * | 1993-09-22 | 1995-04-05 | Sandoz Ltd. | Waterproofing of joints between concrete members |
EP0679772A1 (en) * | 1993-11-12 | 1995-11-02 | Asahi Denka Kogyo Kabushiki Kaisha | Water expansion cut-off plate |
AT401946B (en) * | 1994-07-15 | 1996-12-27 | Strasser Daniel | GASKET FOR WORK JOINTS IN AND ON CONCRETE CONSTRUCTIONS |
WO1999013174A1 (en) * | 1997-09-11 | 1999-03-18 | Betomax Kunststoff- Und Metallwarenfabrik Gmbh & Co. Kg | Compression tubing for producing water-impermeable or only slightly water-permeable, gastight and/or friction-locked building joints |
AU717263B2 (en) * | 1995-06-23 | 2000-03-23 | Rascor Spezialbau Gmbh | Predetermined crack joint rail |
WO2004079114A1 (en) * | 2003-03-05 | 2004-09-16 | Herman De Neef | Means and method for sealing concrete construction joints and method for manufacturing such sealing means |
EP3392422A1 (en) | 2017-04-18 | 2018-10-24 | Roland Wolf | Device for the subsequent stabilisation of water-permeable gap chamber breaks in bridges, tunnels and buildings |
CN112267344A (en) * | 2020-10-16 | 2021-01-26 | 长沙理工大学 | Crack-inducing member and crack-inducing structure |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29612245U1 (en) * | 1996-07-13 | 1996-09-12 | Rehau Ag + Co, 95111 Rehau | Injection hose |
DE19715366A1 (en) * | 1997-04-14 | 1998-10-22 | Tricosal Gmbh | Sealing strip used in concrete construction to form expansion- or structural joints |
DE10107745A1 (en) * | 2001-02-16 | 2002-09-19 | Stekox Gmbh | Injection tube used for producing water-impermeable, gas-tight and/or interlocking building joints comprises a foam decreasing outward on an inner chamber and passing from a porous region into a non-foamed region |
DE202005002680U1 (en) * | 2005-02-10 | 2005-08-11 | Max Frank Gmbh & Co. Kg | Compression hose for sealing joint in building, contains length direction slits which are sealed when hose is deflated |
DE202010018234U1 (en) * | 2010-08-04 | 2015-02-05 | Dmi Injektionstechnik Gmbh | Injection hose made of flexible liquid impermeable material for joints to be sealed |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL279883A (en) * | 1961-06-27 | 1964-11-25 | ||
DE3038524A1 (en) * | 1980-10-11 | 1982-04-29 | Leschus, geb. Putsch, Hildegard, 5600 Wuppertal | Water bar or sealing strip for concrete joints - has integral grout tube for later injection of expanding grout to seal leaks |
EP0050906A1 (en) * | 1980-10-17 | 1982-05-05 | Hayakawa Rubber Company Limited | Sealant compositions and seals which expand upon absorption of water and processes for their use |
EP0219296A1 (en) * | 1985-10-07 | 1987-04-22 | C.I. Kasei Co., Ltd | A waterstop |
DE8915525U1 (en) * | 1989-09-08 | 1990-09-27 | Pflieger, Lieselotte, 7405 Dettenhausen | Injection hose for sealing joints in concrete structures |
-
1991
- 1991-09-03 DE DE9117062U patent/DE9117062U1/en not_active Expired - Lifetime
- 1991-09-03 AT AT91114843T patent/ATE160837T1/en not_active IP Right Cessation
- 1991-09-03 NO NO913442A patent/NO179846C/en not_active IP Right Cessation
- 1991-09-03 EP EP91114843A patent/EP0501004B1/en not_active Expired - Lifetime
- 1991-09-03 FI FI914141A patent/FI98645C/en not_active IP Right Cessation
- 1991-09-03 IS IS3749A patent/IS3749A7/en unknown
- 1991-09-03 DE DE69128340T patent/DE69128340T2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL279883A (en) * | 1961-06-27 | 1964-11-25 | ||
DE3038524A1 (en) * | 1980-10-11 | 1982-04-29 | Leschus, geb. Putsch, Hildegard, 5600 Wuppertal | Water bar or sealing strip for concrete joints - has integral grout tube for later injection of expanding grout to seal leaks |
EP0050906A1 (en) * | 1980-10-17 | 1982-05-05 | Hayakawa Rubber Company Limited | Sealant compositions and seals which expand upon absorption of water and processes for their use |
EP0219296A1 (en) * | 1985-10-07 | 1987-04-22 | C.I. Kasei Co., Ltd | A waterstop |
DE8915525U1 (en) * | 1989-09-08 | 1990-09-27 | Pflieger, Lieselotte, 7405 Dettenhausen | Injection hose for sealing joints in concrete structures |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994018398A1 (en) * | 1993-02-01 | 1994-08-18 | Bjarne Sem | Injection system for sealing joints in concrete structures |
EP0646681A2 (en) * | 1993-09-22 | 1995-04-05 | Sandoz Ltd. | Waterproofing of joints between concrete members |
EP0646681A3 (en) * | 1993-09-22 | 1995-09-06 | Sandoz Ltd | Waterproofing of joints between concrete members. |
EP0679772A1 (en) * | 1993-11-12 | 1995-11-02 | Asahi Denka Kogyo Kabushiki Kaisha | Water expansion cut-off plate |
EP0679772A4 (en) * | 1993-11-12 | 1996-03-27 | Asahi Denka Kogyo Kk | Water expansion cut-off plate. |
AT401946B (en) * | 1994-07-15 | 1996-12-27 | Strasser Daniel | GASKET FOR WORK JOINTS IN AND ON CONCRETE CONSTRUCTIONS |
AU717263B2 (en) * | 1995-06-23 | 2000-03-23 | Rascor Spezialbau Gmbh | Predetermined crack joint rail |
WO1999013174A1 (en) * | 1997-09-11 | 1999-03-18 | Betomax Kunststoff- Und Metallwarenfabrik Gmbh & Co. Kg | Compression tubing for producing water-impermeable or only slightly water-permeable, gastight and/or friction-locked building joints |
WO2004079114A1 (en) * | 2003-03-05 | 2004-09-16 | Herman De Neef | Means and method for sealing concrete construction joints and method for manufacturing such sealing means |
EP3392422A1 (en) | 2017-04-18 | 2018-10-24 | Roland Wolf | Device for the subsequent stabilisation of water-permeable gap chamber breaks in bridges, tunnels and buildings |
WO2018192935A1 (en) | 2017-04-18 | 2018-10-25 | Roland Wolf | Device for subsequent stabilisation of water-permeable joint cavity cracks in bridges, tunnels and buildings |
CN112267344A (en) * | 2020-10-16 | 2021-01-26 | 长沙理工大学 | Crack-inducing member and crack-inducing structure |
Also Published As
Publication number | Publication date |
---|---|
FI914141A0 (en) | 1991-09-03 |
NO913442L (en) | 1992-09-02 |
NO913442D0 (en) | 1991-09-03 |
DE9117062U1 (en) | 1995-09-14 |
ATE160837T1 (en) | 1997-12-15 |
FI98645B (en) | 1997-04-15 |
FI98645C (en) | 1997-07-25 |
FI914141A (en) | 1992-09-02 |
IS3749A7 (en) | 1992-09-02 |
EP0501004B1 (en) | 1997-12-03 |
NO179846C (en) | 1996-12-27 |
DE69128340T2 (en) | 1998-04-09 |
DE69128340D1 (en) | 1998-01-15 |
NO179846B (en) | 1996-09-16 |
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