EP0421072B1 - Dispositif pour l'injection d'une résine synthétique dans des fissures dans le béton - Google Patents
Dispositif pour l'injection d'une résine synthétique dans des fissures dans le béton Download PDFInfo
- Publication number
- EP0421072B1 EP0421072B1 EP90114131A EP90114131A EP0421072B1 EP 0421072 B1 EP0421072 B1 EP 0421072B1 EP 90114131 A EP90114131 A EP 90114131A EP 90114131 A EP90114131 A EP 90114131A EP 0421072 B1 EP0421072 B1 EP 0421072B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injection
- plastics body
- sealing cuff
- introducer according
- introducer
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
- E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection
Definitions
- the invention relates to an injection packer for injecting synthetic resin into concrete cracks according to the preamble of claim 1.
- An injection packer is known from DE-A-32 03 871, which consists of a plastic sleeve with a lateral surface tapering towards the front end and has a spray nipple that can be attached to the rear end. By means of its tapered lateral surface, this known injection packer can be wedged in the borehole, whereby considerable spreading forces occur. If this known injection packer is driven into a steeply inclined borehole, the high spreading forces can lead to parts flaking off the concrete masonry.
- Injection packers are often hammered into holes that have been made at an angle of 45 degrees in a concrete part to be renovated.
- the hole is drilled so deep in the concrete that the cracks to be sprayed with synthetic resin are cut by the hole.
- the epoxy resin can be pressed at a pressure of 100 bar to 150 bar through the injection packer and through the further drilling into the crack to be repaired.
- an injection packer is known from DE-U-85 23 152, which is designed as a dowel element.
- a hard plastic body equipped with the injection channel and the spray nipple serves as an expansion element and is driven into an expansion sleeve made of soft material.
- the known injection packer is used in such a way that the expansion sleeve is inserted into the prepared borehole and then the hard plastic body is hammered into the sleeve.
- the inner bore of the soft sleeve is conical and in the front area it is considerably smaller in diameter than the outer diameter of the plastic body.
- the invention has for its object to provide a one-piece injection packer that can be used in inclined holes without problems and has both high holding values and a good sealing function.
- the sealing sleeve which is made of softer material than the plastic body, is so flexible and elastic, particularly in the extended section of the sealing sleeve, that an optimal seal and even distribution of the spreading forces is achieved even with non-circular boreholes. Due to the continuation of the diameter of the injection channel onto the extended section of the sealing sleeve, it is avoided that an injection pressure which additionally affects the connection between the plastic body and the sealing sleeve acts on the end face of the plastic body. The injection pressure acting in the injection channel of the extended section of the sealing sleeve creates a radial deformation, which translates into a higher frictional force of the sealing sleeve in the borehole.
- the plastic body on which the sealing sleeve is arranged consists of a much harder material, preferably of glass fiber reinforced polyamide.
- This hard material has the advantage; that the injection packer can be hammered into the borehole without any problems and, after the injection process, the part of the injection packer projecting at the borehole opening can be knocked off with a hammer or the like.
- the sealing sleeve can have collars lying one behind the other, each of which has conical ring surfaces towards the front end, so that the injection packer is easier to drive into a borehole.
- the entire sealing collar preferably tapers towards the front end, its maximum outside diameter of course being larger than the borehole diameter of the associated borehole, so that the injection packer is tightly clamped in the borehole.
- the sealing sleeve made of soft material encompasses ring bundles of the plastic body, which expand towards its front end. This has the great advantage that an axial displacement of the plastic body in the direction of the borehole opening in the region of the ring collars produces an expansion pressure which acts essentially radially on the sealing collar and thus presses it even more against the borehole wall.
- the annular collars preferably have frustoconical outer surfaces which are encompassed by the sealing collar in a form-fitting manner.
- Each of the ring collars thus acts as an expansion body, which widens the sealing collar when axially displaced.
- a force component oriented axially in the direction of the borehole opening can act on the plastic body. This force component generates a radial force component in the region of the frustoconical or conical outer surfaces of the ring collars, which promotes tight sealing of the sealing sleeve in the borehole.
- some of the ring collars provided on the outside of the sealing collar can have a larger diameter than the shaft of the plastic body, which is adapted to the borehole diameter.
- the elastic ring collars with an enlarged diameter ensure a stable mechanical connection between the sealing collar and the borehole wall, which does not lose its sealing function even at high pressures.
- the sealing sleeve is preferably sprayed onto the initially produced plastic body in a two-component injection molding process, profiles being formed on the plastic body in the area of the sealing sleeve, which bring about a positive connection between the sealing sleeve and the plastic body.
- This positive connection is very advantageous because of the high pressure forces that occur during the injection process, since it ensures an extremely stable mechanical connection between the plastic body and the sealing sleeve.
- the injection packer shown in FIG. 1 consists of a plastic body 1 with a spray nipple 2 and a sealing sleeve 3 which is sprayed on at the front end of the plastic part 1.
- the plastic part 1 consists of glass fiber reinforced polyamide, while the sealing sleeve 3 is made of a softer plastic material, for example polyurethane or polyethylene.
- the spray nipple 2 leads to an injection channel 4, which runs axially through the entire injection packer. Part of the injection channel 4 is formed by a through channel 5 of the sealing sleeve 3.
- the sealing sleeve 3 has a plurality of ring collars 6 arranged one behind the other, which are shown in longitudinal section as teeth.
- the bundles of rings 6 are frustoconical in shape, their diameter tapering towards the front end.
- the sealing sleeve 3 tapers overall to the front end 7, so that the diameter of the individual ring bundles 6 decreases towards the front end 7. This approximately wedge-shaped course of the sealing sleeve 3 ensures that the sealing sleeve 3 is firmly pressed into the borehole 8 (FIG. 2) and anchored the injection packer in a sealing manner.
- sealing sleeve 3 and the plastic body 1 are firmly connected to one another, which is why a profile 9 is provided on the plastic body 1 in the area of the sealing sleeve 3, which produces a positive connection to the sealing sleeve 3.
- the sealing sleeve 3 is sprayed onto the plastic body 1 in a two-component injection molding process, where an optimal connection to the plastic body 1 is obtained.
- the injection packer driven into a borehole 8 is shown in FIG.
- the borehole 8 cuts a crack 10 to be sprayed with synthetic resin, which is provided with a seal 12 on the wall surface of the concrete masonry 11.
- epoxy resin can be injected through the injection packer into the borehole 8 and further into the crack 10 by means of a high pressure press known per se.
- the spray pressure can be in the range from 100 bar to 150 bar and higher.
- the plastic body 1 has, in the area that penetrates into the sealing sleeve 3, a plurality of ring bundles 20 arranged one behind the other, against which correspondingly conical inner surfaces 21 of the sealing sleeve 3 rest.
- the sealing sleeve 3 is sprayed onto the plastic body 1 in a two-component injection molding process.
- two collars 61, 62 of the sealing collar 3 have a somewhat larger diameter than the straight shaft S of the plastic body 1.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Pipe Accessories (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
- Materials For Medical Uses (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Claims (9)
- Dispositif d'injection pour injecter de la résine synthétique dans des fissures du béton, comprenant un corps en matière plastique de forme allongée, présentant un canal d'injection qui le traverse de part en part en direction longitudinale, et portant à son extrémité arrière un raccord d'injection menant au canal d'injection, ainsi qu'une manchette d'étanchéité entourant le corps en matière plastique et faite d'un matériau plus souple que ce corps, la manchette d'étanchéité (3) étant disposée sur l'extrémité avant du corps (1) en matière plastique, caractérisé en ce que la partie arrière de la manchette (3) entoure le corps (11) à complémentarité de formes et que la partie avant de la manchette (3) est prolongée au-delà du corps (1) et présente un canal de passage axial (5) qui se raccorde au canal d'injection (4) du corps en matière plastique et possède le même diamètre que le canal d'injection (4) du corps (1).
- Dispositif d'injection selon la revendication 1, caractérisé en ce que la manchette d'étanchéité (3) comporte des collets annulaires (6) saillants, répartis sur la longueur de la manchette et possédant des surfaces latérales tronconiques.
- Dispositif d'injection selon la revendication 1, caractérisé en ce que la manchette d'étanchéité (3) se rétrécit vers l'extrémité avant (7) du dispositif d'injection.
- Dispositif d'injection selon la revendication 1, caractérisé en ce que le corps (1) en matière plastique possède, sur sa partie pénétrant dans la manchette d'étanchéité (3), plusieurs collets annulaires (20) disposés les uns derrière les autres et dont le diamètre augmente vers l'extrémité avant (7) du corps (1).
- Dispositif d'injection selon la revendication 4, caractérisé en ce que les collets annulaires (20) possèdent des surfaces latérales tronconiques.
- Dispositif d'injection selon la revendication 5, caractérisé en ce que la manchette d'étanchéité (3) entoure les surfaces latérales tronconiques (20) par des surfaces intérieures (21) de forme conique.
- Dispositif d'injection selon la revendication 1, caractérisé en ce que la manchette d'étanchéité (3) fait radialement saillie, par rapport à la tige (S) adjacente du corps (1), par au moins un collet annulaire extérieur (61, 62).
- Dispositif d'injection selon la revendication 1, caractérisé en ce que la manchette d'étanchéité (3) est faite de polyéthylène ou de polyuréthanne et le corps (1) est en polyamide armé de fibre de verre.
- Procédé pour fabriquer le dispositif d'injection selon la revendication 1, caractérisé en ce que, selon un procédé de moulage par injection à deux composants, on produit d'abord le corps (1) en matière plastique et on moule ensuite la manchette d'étanchéité (3) sur ce corps (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90114131T ATE95267T1 (de) | 1989-09-07 | 1990-07-24 | Injektionspacker zum injizieren von kunstharz in betonrisse. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3929776A DE3929776A1 (de) | 1989-09-07 | 1989-09-07 | Injektionspacker zum injizieren von kunstharz in betonrisse |
DE3929776 | 1989-09-07 | ||
DE3936040A DE3936040A1 (de) | 1989-09-07 | 1989-10-28 | Injektionspacker zum injizieren von kunstharz in betonrisse |
DE3936040 | 1989-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0421072A1 EP0421072A1 (fr) | 1991-04-10 |
EP0421072B1 true EP0421072B1 (fr) | 1993-09-29 |
Family
ID=25884865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90114131A Expired - Lifetime EP0421072B1 (fr) | 1989-09-07 | 1990-07-24 | Dispositif pour l'injection d'une résine synthétique dans des fissures dans le béton |
Country Status (13)
Country | Link |
---|---|
US (1) | US5079881A (fr) |
EP (1) | EP0421072B1 (fr) |
AT (1) | ATE95267T1 (fr) |
CA (1) | CA2024468C (fr) |
CZ (1) | CZ279405B6 (fr) |
DE (2) | DE3936040A1 (fr) |
DK (1) | DK0421072T3 (fr) |
ES (1) | ES2046612T3 (fr) |
HU (1) | HU208352B (fr) |
PL (1) | PL163771B1 (fr) |
PT (1) | PT95210B (fr) |
RU (1) | RU2012755C1 (fr) |
SK (1) | SK278244B6 (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8910744U1 (de) * | 1989-09-08 | 1991-01-17 | Schmidt, René P., Oberweningen | Dichtungsvorrichtung für Betonfugen |
FR2698899B1 (fr) * | 1992-12-09 | 1995-03-10 | Marc Bidaux | Dispositif de cheville pour l'injection et la retenue d'un produit traitant dans une paroi de maçonnerie. |
DE9312858U1 (de) * | 1993-08-27 | 1994-08-04 | Schreiner, Klaus, 34246 Vellmar | Vorrichtung zur Injektion von fließfähigen Materialien in Mauerwerke, Betonbauteile, Holz o.dgl. |
US6226948B1 (en) * | 1999-05-26 | 2001-05-08 | John F. Trout | Method and apparatus for waterproofing concrete |
FR2802957B1 (fr) * | 1999-12-28 | 2002-08-02 | Olivier Bidaux | Dispositif d'injection pour le traitement d'ouvrages en maconnerie |
KR100376991B1 (ko) * | 2000-05-24 | 2003-03-26 | 송병창 | 콘크리트 구조물의 균열보수를 위한 저압주입기 및 이를이용한 저압주입공법 |
KR20020005927A (ko) * | 2000-07-11 | 2002-01-18 | 쇼본도 겐세츠 가부시키가이샤 | 접착제 주입장치용 와셔, 접착제 주입장치 및 접착제주입방법 |
KR100458992B1 (ko) * | 2002-03-16 | 2004-12-03 | 삼성물산 주식회사 | 플라스틱 마이크로 패커 및 이를 이용한 중압 균열보수 공법 |
KR100655850B1 (ko) * | 2005-09-27 | 2006-12-13 | 황병권 | 콘크리트 구조체 균열 보수용 패커 |
CN101261264B (zh) * | 2007-03-09 | 2011-07-20 | 郑州优特基础工程维修有限公司 | 半刚性基层路面病害检测与高聚物注浆维修方法 |
US7686519B2 (en) * | 2007-06-18 | 2010-03-30 | Adc Telecommunications, Inc. | Hardened fiber optic housing and cable assembly |
CN101256181B (zh) * | 2008-03-20 | 2011-11-23 | 山东省交通科学研究所 | 路面病害破损检测方法 |
ES2343055B1 (es) * | 2009-01-20 | 2011-06-06 | Alberto Gonzalo Carracedo | Procedimiento de reparacion de cimentaciones de aerogeneradores. |
WO2011143588A2 (fr) * | 2010-05-13 | 2011-11-17 | Structural Group, Inc. | Système et procédé pour réparer des fuites de fissures |
JP5871584B2 (ja) * | 2011-11-24 | 2016-03-01 | 末吉 三浦 | コンクリート躯体補修方法及びそれに使用されるコンクリート躯体補修用挿入型注入プラグ |
CN105625154B (zh) * | 2015-12-18 | 2017-10-03 | 安徽优特公路养护科技有限公司 | 在道路基层病害处准确填充高聚物进行道路修复的方法 |
CN114382310A (zh) * | 2021-12-23 | 2022-04-22 | 珠海华发人居生活研究院有限公司 | 一种负三层底板地坪开裂处理方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE528512A (fr) * | ||||
US3572956A (en) * | 1968-07-30 | 1971-03-30 | Halliburton Co | Apparatus for grouting |
DE2746482A1 (de) * | 1977-10-15 | 1979-04-26 | Fischer Artur Dr H C | Verankerung eines befestigungselementes in einem bohrloch eines mauerwerks |
US4286900A (en) * | 1979-10-24 | 1981-09-01 | Tokyo Chika Koji Kabushiki Kaisha | Injection device of chemical fluids for improvements of the ground |
JPS58106013A (ja) * | 1981-12-16 | 1983-06-24 | Nippon Soiru Kogyo Kk | 薬液注入工法およびその装置 |
DE3203871A1 (de) * | 1982-02-05 | 1983-08-18 | Artur Dr.H.C. 7244 Waldachtal Fischer | Hochdruckpacker zum injizieren von kunstharz in betonrisse |
DE3426088A1 (de) * | 1984-07-14 | 1986-01-16 | Polyplan Werkzeuge Hans-Jürgen Borowski GmbH, 2000 Hamburg | Vorrichtung zum abdichten von rissen und dergl. in bauteilen |
DE8523152U1 (de) * | 1985-08-10 | 1985-10-03 | Remmertz, Helmut, 4050 Mönchengladbach | Einschlagbarer Hochdruck-Injektionspacker |
JPS6312563U (fr) * | 1986-07-11 | 1988-01-27 | ||
DE8700534U1 (de) * | 1987-01-13 | 1987-02-26 | Borowski, Hans-Jürgen, 2000 Hamburg | Injektionsvorrichtung |
-
1989
- 1989-10-28 DE DE3936040A patent/DE3936040A1/de not_active Withdrawn
-
1990
- 1990-07-24 DK DK90114131.7T patent/DK0421072T3/da active
- 1990-07-24 EP EP90114131A patent/EP0421072B1/fr not_active Expired - Lifetime
- 1990-07-24 DE DE90114131T patent/DE59002915D1/de not_active Expired - Fee Related
- 1990-07-24 ES ES199090114131T patent/ES2046612T3/es not_active Expired - Lifetime
- 1990-07-24 AT AT90114131T patent/ATE95267T1/de not_active IP Right Cessation
- 1990-08-08 PL PL90286394A patent/PL163771B1/pl unknown
- 1990-08-31 CA CA002024468A patent/CA2024468C/fr not_active Expired - Fee Related
- 1990-09-03 HU HU905748A patent/HU208352B/hu not_active IP Right Cessation
- 1990-09-03 CZ CS904271A patent/CZ279405B6/cs unknown
- 1990-09-03 SK SK4271-90A patent/SK278244B6/sk unknown
- 1990-09-05 PT PT95210A patent/PT95210B/pt not_active IP Right Cessation
- 1990-09-06 RU SU904831041A patent/RU2012755C1/ru active
- 1990-09-07 US US07/579,938 patent/US5079881A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CZ279405B6 (cs) | 1995-04-12 |
DK0421072T3 (da) | 1993-11-08 |
CA2024468A1 (fr) | 1991-03-08 |
HU905748D0 (en) | 1991-03-28 |
SK278244B6 (en) | 1996-05-08 |
PT95210A (pt) | 1992-03-31 |
PT95210B (pt) | 1998-06-30 |
ATE95267T1 (de) | 1993-10-15 |
CA2024468C (fr) | 1995-07-18 |
CS427190A3 (en) | 1992-03-18 |
RU2012755C1 (ru) | 1994-05-15 |
US5079881A (en) | 1992-01-14 |
PL163771B1 (pl) | 1994-05-31 |
DE3936040A1 (de) | 1991-05-29 |
PL286394A1 (en) | 1991-04-08 |
HUT58847A (en) | 1992-03-30 |
DE59002915D1 (de) | 1993-11-04 |
ES2046612T3 (es) | 1994-02-01 |
EP0421072A1 (fr) | 1991-04-10 |
HU208352B (en) | 1993-09-28 |
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