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WO2000006846A1 - Bandes d'etancheite et leur procede d'installation - Google Patents

Bandes d'etancheite et leur procede d'installation Download PDF

Info

Publication number
WO2000006846A1
WO2000006846A1 PCT/GB1999/002232 GB9902232W WO0006846A1 WO 2000006846 A1 WO2000006846 A1 WO 2000006846A1 GB 9902232 W GB9902232 W GB 9902232W WO 0006846 A1 WO0006846 A1 WO 0006846A1
Authority
WO
WIPO (PCT)
Prior art keywords
waterstop
concrete
section
expansion joint
keying
Prior art date
Application number
PCT/GB1999/002232
Other languages
English (en)
Inventor
Roger Nowell
Original Assignee
Fosroc International Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fosroc International Limited filed Critical Fosroc International Limited
Priority to AU50488/99A priority Critical patent/AU5048899A/en
Publication of WO2000006846A1 publication Critical patent/WO2000006846A1/fr

Links

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
    • E04B1/6806—Waterstops
    • 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
    • E04B1/6807—Expansion elements for parts cast in situ

Definitions

  • This invention relates to waterstops and a method for their installation.
  • Waterstops are used at joints in concrete to prevent the passage of water.
  • Previously used waterstops have been in the form of strips of waterproof flexible material having two or more keying ribs extending along and projecting from the strip for keying the strip to the concrete at the two sides of the joint to be sealed.
  • Such waterstops have been made of a rubber or plastics material such as plasticised polyvinyl chloride .
  • GB Patent No 2,208,881A discloses a waterstop which includes a waterswellable part.
  • This patent discloses a waterstop having a body in the form of an elongate web with a keying formation at or near each edge of the web by which the waterstop may be secured to respective bodies of concrete and a number of transverse ribs which may be made of a water swellable material. The purpose of the transverse ribs is said to be to prevent water running along the length of the waterstop between the keying formations.
  • Waterstops having a part of waterswellable material have also been described in GB Patent No 2,205,872A which describes a waterstop which comprises a web of rubber or polyvinyl chloride with a rib, referred to as a keying formation, near each end for securing the waterstop to a body of concrete.
  • a strip of water swellable material is attached to the ribs of the waterstop.
  • European Patent No 0575075A describes a connector for joining water swellable and non waterswellable waterstops together.
  • the connector comprises an assembly of a strip of non water swellable material and an elongate body of water swellable material transversely bonded to the edge of the strip.
  • Materials which have been previously proposed for water swellable waterstops include certain polyurethane elastomers and a combination of sodium bentonite and rubber containing particles of a waterswellable resin.
  • One of the benefits of these waterstops is that they are simpler to install in that they do not require the use of split stopends.
  • a waterswellable waterstop suitable for use in an expansion joint between concrete sections comprising an elongate body having (i) a first portion for keying to the concrete of a first section, (ii) a second portion to be located in the expansion joint and being sufficiently flexible to accommodate the movement of the opening and closing of the joint and
  • the waterswellable waterstops of the present invention can be used in expansion joints employing the simplified installation method mentioned above without the need for split stopends .
  • Figs 1 to 6 are cross sections of different embodiments of the water swellable waterstops of the invention.
  • Fig 7 is a cross sectional view showing the waterstop of Fig 3 installed at an expansion joint between two sections of concrete and Figs 8 to 10 are also cross sectional views of further embodiments and Figs 8A, 9A and 10A show these further embodiments installed at an expansion joint .
  • the first portion may be provided with a flared formation for keying into the concrete of the first pour.
  • the waterstop conveniently is provided with a laterally extending formation for contacting the surface of the concrete of the first section or pour and preferably also a laterally extending formation for contacting the surface of the concrete of the second concrete section or pour.
  • the second portion may have a cavity formed therein to provide the required compressibility and/or flexibility and may comprise a hollow structure formed for example by extrusion.
  • the volume of the cavity in relation to the solid material comprising the second portion of the waterstop may for example be from 1:2 to 2:1.
  • the second portion may be defined as that portion of the waterstop located in the gap in the expansion joint filler as shown in Fig 10A for example .
  • the keying formations of the first and third portions may, for example, be in the form of a block or mushroom shape or of bifurcated form.
  • the water swellable material employed to make the waterstops of the present invention may be a rubber or flexible plastics material containing dispersed particles of a waterswellable resin.
  • the preferred material is a polyurethane elastomer which is produced from an aliphatic or alicyclic isocyanate and which is rendered water swellable by the presence of hydrophilic groups within its chemical structure.
  • the waterstops of the invention may be formed in one piece eg by extrusion. The waterstops may be extruded in any convenient length but this is usually from 1 to 5 metres .
  • a method for the installation of a waterstop at an expansion joint in a concrete structure comprises
  • Fig 1 shows a waterstop indicated generally by numeral 2 which comprises a first portion 4 in the form of arms 5 to be adhered to a surface of a first concrete pour, a relatively compressible central portion 6 in the form of a tube which is intended to placed in the expansion gap between pours of concrete.
  • the tube 6 has a cavity 7 of circular cross section and the tube 6 has six external flat faces 9.
  • the waterstop 2 has a third portion 8 having arms 10 for contacting a surface of a second concrete pour and a mushroom shaped keying formation 12 for keying into a second concrete pour.
  • the arms 5 of the waterstop 2 provide a surface which is fixed to the concrete of the first pour using an adhesive such as Supercast SWX (trade name owned by Fosroc International Limited) hydrophilic adhesive. A 60 mm width is used to ensure sufficient area of adhesion is available.
  • the hexagonal tube 6 is designed to compress and extend providing a low modulus system.
  • the two sets of side arms 5 and 10 are intended to fit on each side of the expansion joint filler board pieces (not shown) .
  • the angle of the arms 10 is selected to provide some grip on the filler board and to work with 18mm filler board as well as the standard 25mm.
  • the keying formation 12 is covered by the second concrete pour.
  • the waterstop indicated generally by numeral 11 is identical with that in Fig 1 except that the first portion comprises a block 14 having a serrated face 16, the arms 13 have serrations 15 on their faces and mushroom shaped keying formation 18 is larger.
  • the block 14 is intended to fit into a slot cast in the first concrete pour.
  • the purpose of the block 14 is that should water reach it the block will swell inside the slot, thereby creating a lateral pressure seal.
  • the serrations 16 on the lower face of the block 14 are to allow the adhesive eg Supercast SWX, which bonds more strongly to concrete than to the hydrophilic polymer, to exercise a mechanical key supplementing the adhesive bond.
  • the serrations 15 on the lower face of the arms provide increased surface area to increase the bond strength.
  • the waterstop 22 is identical with that of Fig 2 except that the tube 19 has a cavity 20 which is hexagonal in cross section, the arms 27 extend outward at a different angle and have serrated upper faces 24 and the keying formation 26 comprises a forked projection.
  • the waterstop 30 is identical with that of Fig 3 except that the first portion indicated by numeral 28 has no block.
  • the waterstop 31 is identical with that of Fig 3 except that the arms 32 are shorter and have no serrations.
  • the waterstop 35 is identical with that of Fig 5 except that the arms 36 are shorter and have no serrations .
  • a waterstop as illustrated in Fig 3 is shown installed at an expansion joint in a wall 39.
  • an expansion joint 46 which contains an expansion joint filler 48.
  • the first concrete pour 40 has been cast with a slot 42 into which slot is fitted the block 14' of the waterstop.
  • the serrated face 16' of the block is coated with an adhesive to improve keying with the concrete 40 of the first pour.
  • the serrated faces 15 ' of arms 13 ' contact the face of the first concrete pour 40 and the serrated faces 29 of arms 27 contact the face of the second concrete pour 44.
  • a waterstop is indicated by numeral 50.
  • Fig 8 shows the waterstop before use and Fig 8A shows it after it has been pushed into a channel 57 formed in section 56.
  • the waterstop has flared keying formations 58 and 60 which key into the concrete sections 54 and 56 respectively.
  • the waterstop has a cavity 59.
  • Fig 8A the waterstop is shown installed in a gap in expansion joint filler 52 between two sections of concrete 54 and 56.
  • the first section of concrete 56 is cast with a channel 57 formed therein.
  • the waterstop 50 is then pushed into the channel 57 and the expansion joint filler 52 applied to the required thickness.
  • the second concrete section 54 is then poured.
  • a waterstop is indicated by numeral 70.
  • Fig 9 shows the waterstop before use and Fig 9A shows it pushed into channel 77 formed in concrete section 76.
  • the waterstop has flared keying formations 78 and 80 which key into the concrete sections 74 and 76 respectively.
  • the waterstop has a cavity 73.
  • Fig 9A the waterstop is shown installed in a gap in expansion joint filler 72 between two sections of concrete 74 and 76. The installation is as described with reference to Figs 8 and 8A.
  • a waterstop is indicated by numeral 82.
  • the waterstop is shown installed in a gap in the expansion joint filler 84 between two sections of concrete 86 and 88.
  • the waterstop has a cavity 93 and portion 92 which projects into channel 97 which has been formed in the concrete section 88.
  • the waterstop 82 has lugs or nipples 100, 102, 104 and 106 to assist in positioning the waterstop in the channel 97.
  • the expansion joint filler 84 is built up to the required thickness (the distance between the two sets of lugs 100,104 and 102,106 being the thickness of the filler) .
  • the waterstops of the present invention will usually be manufactured in lengths of typically 15 to 20 metres and transported to the construction site in the form of a roll. At the site they will be cut to the required length. When necessary lengths may be joined endwise by butt welding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

L'invention porte sur une bande (2) d'étanchéité gonflant à l'eau se posant entre les faces d'un joint à expansion et comprenant un corps allongé comportant (i) une première partie (4) s'encastrant dans le béton d'une première section, (ii) une deuxième partie (6) se plaçant dans le joint à expansion et suffisamment souple pour suivre les mouvements d'ouverture et de fermeture du joint, et (iii) une troisième partie (8) s'encastrant dans le béton d'une deuxième section.
PCT/GB1999/002232 1998-07-28 1999-07-27 Bandes d'etancheite et leur procede d'installation WO2000006846A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU50488/99A AU5048899A (en) 1998-07-28 1999-07-27 Waterstops and a method for their installation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9816365.2 1998-07-28
GBGB9816365.2A GB9816365D0 (en) 1998-07-28 1998-07-28 Waterstops and a method for their installation

Publications (1)

Publication Number Publication Date
WO2000006846A1 true WO2000006846A1 (fr) 2000-02-10

Family

ID=10836269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/002232 WO2000006846A1 (fr) 1998-07-28 1999-07-27 Bandes d'etancheite et leur procede d'installation

Country Status (3)

Country Link
AU (1) AU5048899A (fr)
GB (1) GB9816365D0 (fr)
WO (1) WO2000006846A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1298260A1 (fr) * 2001-09-27 2003-04-02 Johann Bruckner Dispositif pour l'étanchéité d'un joint entre deux parties d'une structure en béton
WO2003046300A1 (fr) * 2001-11-29 2003-06-05 Commercial Waterproofing Services Pty Ltd Procede et moyen d'etancheification de joints
WO2014166996A1 (fr) 2013-04-09 2014-10-16 Carpi Tech B.V. Procédé et dispositif pour couvrir et rendre étanches à l'eau des joints dans des ouvrages hydrauliques
CN106638999A (zh) * 2016-10-18 2017-05-10 中国建筑第八工程局有限公司 气囊止水结构及其止水方法
WO2019101804A1 (fr) * 2017-11-23 2019-05-31 Maurer Engineering Gmbh Profil d'étanchéité de joints, dispositif de pontage de joints de construction et procédé destiné à la fabrication d'un profil d'étanchéité de joints
CN114856185A (zh) * 2022-03-31 2022-08-05 中国一冶集团有限公司 一种变截面双伞状止水螺杆结构及其施工方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB930627A (en) * 1961-03-27 1963-07-03 Duratube & Wire Ltd Improvements in or relating to waterstops
EP0219296A1 (fr) * 1985-10-07 1987-04-22 C.I. Kasei Co., Ltd Joint
GB2205872A (en) 1987-06-03 1988-12-21 Grace W R Ltd Waterstops with water-swellable edge regions
GB2208881A (en) 1987-08-19 1989-04-19 Grace W R Ltd Waterstops for concrete with longitudinal and transverse ribs
EP0575075A1 (fr) 1992-06-18 1993-12-22 Fosroc International Limited Méthode d'accouplement de dispositifs d'étanchéité d'interface et leurs connecteurs
DE29712648U1 (de) * 1997-07-17 1997-10-02 Hoch GmbH, 58566 Kierspe Band zum Abdichten von Fugen, insbesondere im Hoch- und Tiefbau

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB930627A (en) * 1961-03-27 1963-07-03 Duratube & Wire Ltd Improvements in or relating to waterstops
EP0219296A1 (fr) * 1985-10-07 1987-04-22 C.I. Kasei Co., Ltd Joint
GB2205872A (en) 1987-06-03 1988-12-21 Grace W R Ltd Waterstops with water-swellable edge regions
GB2208881A (en) 1987-08-19 1989-04-19 Grace W R Ltd Waterstops for concrete with longitudinal and transverse ribs
EP0575075A1 (fr) 1992-06-18 1993-12-22 Fosroc International Limited Méthode d'accouplement de dispositifs d'étanchéité d'interface et leurs connecteurs
DE29712648U1 (de) * 1997-07-17 1997-10-02 Hoch GmbH, 58566 Kierspe Band zum Abdichten von Fugen, insbesondere im Hoch- und Tiefbau

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1298260A1 (fr) * 2001-09-27 2003-04-02 Johann Bruckner Dispositif pour l'étanchéité d'un joint entre deux parties d'une structure en béton
WO2003027407A1 (fr) * 2001-09-27 2003-04-03 Johann Bruckner Dispositif destine a rendre etanche la jointure formee entre deux parties d'un corps en beton
WO2003046300A1 (fr) * 2001-11-29 2003-06-05 Commercial Waterproofing Services Pty Ltd Procede et moyen d'etancheification de joints
WO2014166996A1 (fr) 2013-04-09 2014-10-16 Carpi Tech B.V. Procédé et dispositif pour couvrir et rendre étanches à l'eau des joints dans des ouvrages hydrauliques
CN106638999A (zh) * 2016-10-18 2017-05-10 中国建筑第八工程局有限公司 气囊止水结构及其止水方法
WO2019101804A1 (fr) * 2017-11-23 2019-05-31 Maurer Engineering Gmbh Profil d'étanchéité de joints, dispositif de pontage de joints de construction et procédé destiné à la fabrication d'un profil d'étanchéité de joints
CN111566290A (zh) * 2017-11-23 2020-08-21 毛雷尔工程有限公司 接缝密封型材、结构接缝桥接装置和用于生产接缝密封型材的方法
JP2021512969A (ja) * 2017-11-23 2021-05-20 マウレール エンジニアリング ゲーエムベーハー 継目封止用形材、施工継目架橋装置、および継目封止用形材の製造方法
RU2748262C1 (ru) * 2017-11-23 2021-05-21 Маурер Энжинееринг Гмбх Шовный уплотнительный профиль, устройство перекрытия конструкционного шва и способ изготовления шовного уплотнительного профиля
AU2018373772B2 (en) * 2017-11-23 2022-02-17 Maurer Engineering Gmbh Joint-sealing profile, structural joint bridging device and method for producing a joint-sealing profile
US11384490B2 (en) 2017-11-23 2022-07-12 Maurer Engineering Gmbh Joint sealing profile, construction joint bridging device and method of manufacturing a joint sealing profile
CN114856185A (zh) * 2022-03-31 2022-08-05 中国一冶集团有限公司 一种变截面双伞状止水螺杆结构及其施工方法
CN114856185B (zh) * 2022-03-31 2023-08-29 中国一冶集团有限公司 一种变截面双伞状止水螺杆结构及其施工方法

Also Published As

Publication number Publication date
AU5048899A (en) 2000-02-21
GB9816365D0 (en) 1998-09-23

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