WO2005116354A1 - Method and system for constructing a concrete waterstop joint and use of a cementitious and reactive waterproofing grout strip - Google Patents
Method and system for constructing a concrete waterstop joint and use of a cementitious and reactive waterproofing grout stripInfo
- Publication number
- WO2005116354A1 WO2005116354A1 PCT/CA2005/000778 CA2005000778W WO2005116354A1 WO 2005116354 A1 WO2005116354 A1 WO 2005116354A1 CA 2005000778 W CA2005000778 W CA 2005000778W WO 2005116354 A1 WO2005116354 A1 WO 2005116354A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cementitious
- grout strip
- concrete
- joint area
- strip
- Prior art date
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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
Definitions
- the invention is directed to concrete construction joints, and more specifically to a method and system for constructing a concrete waterstop joint and a use of a cementitious and reactive waterproofing grout strip.
- a membrane fabricated from a nonporous or water-impermeable membrane such as a strip of plastic
- a membrane may be partially longitudinally embedded in a horizontal slab, such that part of the membrane protrudes generally upward from the slab surface.
- a vertical wall may then be poured over the protruding part, fully embedding the membrane in the joint and forming a barrier to water migration.
- such a construction may not prevent water and waterborne chemicals to seep into capillaries and other crevices in the surrounding concrete and thus migrate around the membrane.
- the membrane may become brittle from age or mechanical fatigue and crack, allowing water to pass directly through the barrier.
- a liner made from a porous material, such as clay may be interposed between adjacent concrete pieces, such as to trap and absorb migrating moisture.
- moisture absorption may cause such a liner to swell.
- upon drying the liner will shrink. Repeated cycles will cause the liner to fail.
- the method may include applying a continuous longitudinal cementitious and reactive waterproofing grout strip to a joint area of the first concrete portion and forming the second concrete portion over the grout strip.
- the method may further include bringing the joint area of the first concrete portion to a saturated/surface dry (SSD) condition prior to applying the continuous longitudinal cementitious and reactive waterproofing grout strip.
- the method may also further include applying a cementitious and reactive waterproofing slurry to the joint area and/or to the grout strip and forming the second concrete portion over the joint area.
- a cementitious and reactive waterproofing grout strip in the construction of a concrete waterstop joint between first and second concrete portions.
- a cementitious and reactive waterproofing slurry may also be used on the joint area and/or grout strip.
- the system may include a first concrete portion having a joint area, a continuous cementitious and reactive waterproofing longitudinal grout strip connectable to the joint area, and a second concrete portion formable over the grout strip.
- the system may include a cementitious and reactive waterproofing slurry applicable to the joint area and/or grout strip and a second concrete portion formable over the joint area.
- the grout strip may be formed to have a triangular cross-section with an altitude to base ratio of 3:5 which may be substantially positioned along the center-line of the joint area.
- the cementitious and reactive waterproofing slurry may conform to CSI Master Format 2004 071600 and 071616.
- the cementitious and reactive waterproofing slurry may be KrystolTMor XypexTMmixture.
- Fig. 1 is an isometric drawing of a portion of a concrete slab with a continuous grout strip applied to a joint area. The joint area and strip are both treated with sealant slurry, and several pieces of rebar extend vertically from the joint area;
- Fig. 2 is a cross-section of a grout strip applied to a concrete slab, showing exemplary dimensions of the grout strip;
- Fig. 3 is a cross-section of two concrete wall-to-slab joints, showing sealant slurry and grout strips applied between adjacent concrete portions.
- Fig. 1 illustrates a concrete slab 10 with a joint area 12 corresponding to the location of an intended concrete wall (not illustrated).
- Rebar 14 extends vertically from the slab 10 through the joint area 12.
- the surface should be sound, clean and free of contaminants and debris.
- the joint area 12 surface is brought to a saturated/surface-dry (SSD) condition such that the pores of the slab 10 are completely saturated with water, but no free water remains on the surface.
- SSD saturated/surface-dry
- a continuous longitudinal grout strip 16 may then be formed on the surface of the joint area 12 using a trowel or other similar shaping tool.
- the grout 16 or putty may be a concentrated aqueous suspension of slurry sealant (discussed below).
- the grout strip 16 runs generally parallel to a line formed by the rebar 14 and is formed substantially along the center-line of the joint area 12.
- the grout strip 16 is shown positioned to one side of the rebar 14, it may optionally be positioned to the other side, or partially or completely surrounding the point of intersection of the rebar with the concrete surface.
- more than one grout strip may be formed, for example, one on either side of the the rebar 14.
- the grout strip 16 may have a triangular cross-section.
- Fig. 2 shows the grout strip 16 with a triangular cross-section with exemplary dimensions with an altitude "A" to base "B" ratio of 3:5.
- the grout strip 16 may be shaped with a generally right-triangular cross-section, oriented with the equilateral sides forming a peak pointing generally upwardly from the surface. This may, in turn, provide a relatively large area of contact with a subsequently formed concrete portion while limiting the amount of grout used.
- Other grout strip cross-sections may be used, such as curved, jagged, regular or irregular shapes, or varying shapes along the length of the strip 16.
- the grout strip and surrounding joint area 12 may be treated with a cementitious and reactive waterproofing slurry sealant 18 which may be a less concentrated aqueous suspension of sealant than the grout 16.
- a cementitious and reactive waterproofing slurry sealant 18 may be a less concentrated aqueous suspension of sealant than the grout 16.
- Such water-reactive crystal forming slurry sealants may react with water to facilitate crystalline growth, which may fill or plug surface pores or capillaries, preventing water migration.
- water-reactive chemicals in the sealant may remain dormant in anhydrous conditions. However, the dormant chemicals may be reactivated in the presence of water to form additional water migration-impeding crystalline growth.
- interposing such a slurry sealant between adjacent concrete layers may prevent water from migrating through the intersection, since water may trigger crystal formation, which may in turn block an aperture through which water may migrate.
- cracks in the concrete may form subsequent to pouring due to settling or mechanical fatigue, which may provide new water migration paths.
- the "self-sealing" nature of the sealant chemicals may fill or plug such paths with crystal growth upon contact with moisture that has moved through the paths.
- sealants which conform to CSI Master Format 2004 071600 or CSI Master Format 2004 071616 may be used.
- Exemplary sealants include KrystolTM waterproofing mixture as available from the Kryton Group of Companies of Vancouver, B.C., Canada or XypexTM mixture as available from the Xypex Chemical Corporation.
- the physical and/or chemical composition of the slurry sealant may be a factor in the selection of a desired material for creating a waterstop joint.
- Krystol is a concrete compatible powder that may be aqueously suspended in varying concentrations, such as to create a putty or slurry. Krystol is also available in waterstop grout form and in slurry form.
- a chemical bond formed between the grout strip 16 and the concrete surface upon which the grout strip is formed may be strengthened and rendered impermeable to moisture when the concrete has a damp, porous surface. Moisture may promote crystalline growth, and pores may allow penetration of crystalline formation into the concrete surface.
- a preliminary, preparatory step such as grinding, water-blasting, shot-blasting, or similar means, may be performed to create, or increase the porosity of, a porous concrete surface to which the grout strip 16 or slurry 18 is applied.
- the grout strip 16 may be allowed to dry, or set. prior to slurry 18 treatment.
- the selection of drying/setting time may relate to such factors as grout strip size and shape, concrete surface conditions, ambient conditions, chemical makeup of the grout strip and/or slurry, and so forth. These characteristics also may affect any chemical bonding reaction between the slurry sealant and the concrete surface.
- Slurry 18 may be applied to the intended joint area 12 of the concrete surface in any suitable method, such as by brush or roller. Applying slurry 18 with a bristled concrete brush may achieve a desired degree of contact and penetration. Slurry 18 may be applied within or beyond the intended joint area 12 over which a subsequent concrete portion win be poured. In Fig. 1, for example, the treated area of the horizontal concrete surface has an irregular ulterior border, within which a vertical concrete wall will be poured.
- the slurry 18 may be allowed to dry prior to a subsequent concrete pour. Since any water-reactive chemicals of the slurry sealant 18 may remain dormant after the joint is formed, a subsequent concrete portion may be poured over the treated surface at any time appropriate for the slurry sealant selected. A second, adjacent concrete portion may then be poured or formed over the grout strip 16 and slurry 18 treated surface 12 to complete the installation of the waterstop joint.
- only the grout strip 16 or the slurry 18 may be used, or additional grout strips or slurries may be used.
- Fig. 3 shows an exemplary cross-section of a portion of a concrete slab 20 interposed between two concrete walls 22 and 24 creating two wall-to-slab joints 26 and 28 where the walls meet the slab.
- Fig. 3 illustrates two horizontal joints 26 and 28 viewed from the side where the slab 20 represents a horizontal slab and wall 22 and 24 represents lower and and upper walls, respectively.
- the concrete sections are placed in sequence 22, 20, 24.
- the joint area of lower wall 22 is preferably brought to a SSD condition.
- a grout strip 30 is applied to the joint area of lower wall 22.
- the grout strip 30 and joint area of lower wall 22 are then covered with slurry 34 and slab 20 is poured over the grout strip 30 and slurry 34.
- the joint area of slab 20 is preferably brought to a SSD condition.
- a grout strip 36 is applied to the joint area of slab 20.
- the grout strip 36 and joint area of slab 20 are then covered with slurry 38 and upper wall 24 is poured over the grout strip 36 and slurry 38.
- Fig. 3 illustrates two vertical joints 26 and 28 viewed from above where the slab 20 now represents a vertical wall and wall 22 and 24 represents left and and right walls, respectively.
- the concrete sections are placed in sequence 24, 20, 22.
- the joint area of right wall 24 is preferably brought to a SSD condition.
- a grout strip 36 is applied to the joint area of right wall 24.
- the grout strip 36 and joint area of right wall 24 are then covered with slurry 38 and vertical wall 20 is poured over the grout strip 36 and slurry 38.
- the joint area of vertical wall 20 is preferably brought to a SSD condition.
- a grout strip 30 is applied to the joint area of vertical wall 20.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2565467A CA2565467C (en) | 2004-05-24 | 2005-05-20 | Method and system for constructing a concrete waterstop joint and use of a cementitious and reactive waterproofing grout strip |
GB0622028A GB2429989B (en) | 2004-05-24 | 2005-05-20 | Method and system for constructing a concrete waterstop joint and use of a cementitious and reactive waterproofing grout strip |
US11/569,435 US8122677B2 (en) | 2004-05-24 | 2005-05-20 | Method and system for constructing a concrete waterstop joint and use of a cementitious and reactive waterproofing grout strip |
AU2005247966A AU2005247966B2 (en) | 2004-05-24 | 2005-05-20 | Method and system for constructing a concrete waterstop joint and use of a cementitious and reactive waterproofing grout strip |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57429104P | 2004-05-24 | 2004-05-24 | |
US60/574,291 | 2004-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005116354A1 true WO2005116354A1 (en) | 2005-12-08 |
Family
ID=35450933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2005/000778 WO2005116354A1 (en) | 2004-05-24 | 2005-05-20 | Method and system for constructing a concrete waterstop joint and use of a cementitious and reactive waterproofing grout strip |
Country Status (5)
Country | Link |
---|---|
US (1) | US8122677B2 (en) |
AU (1) | AU2005247966B2 (en) |
CA (1) | CA2565467C (en) |
GB (1) | GB2429989B (en) |
WO (1) | WO2005116354A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102777169B (en) * | 2012-07-18 | 2015-10-21 | 淮南矿业(集团)有限责任公司 | Gas pressure angle of depression measuring method and system |
CN113323163B (en) * | 2021-06-18 | 2022-08-26 | 浙大城市学院 | Construction equipment for assembled shear wall structure system |
CN113323165B (en) * | 2021-06-18 | 2022-08-26 | 浙大城市学院 | Waterproof sealing construction equipment and construction method for assembly type building outer wall joint |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991018946A1 (en) * | 1990-06-08 | 1991-12-12 | Minnesota Mining And Manufacturing Company | Water reactive sealant composition |
EP0692584A1 (en) * | 1994-07-15 | 1996-01-17 | Daniel Strasser | Waterstop seal for concrete works |
DE19938368A1 (en) * | 1998-09-25 | 2000-04-20 | Fischer Gert | Concrete joint sealing |
US6449914B1 (en) * | 1998-04-02 | 2002-09-17 | Eugene A. Horstketter | Grout sealing apparatus for concrete panels, decks, and support beams and methods for their fabrication |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
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US3023681A (en) * | 1958-04-21 | 1962-03-06 | Edoco Technical Products | Combined weakened plane joint former and waterstop |
PH13790A (en) * | 1975-10-28 | 1980-10-01 | American Colloid Co | Water barrier panel and method |
US4209568A (en) * | 1978-09-18 | 1980-06-24 | American Colloid Company | Bentonite-gelled oil waterproofing composition |
US4424867A (en) * | 1981-03-31 | 1984-01-10 | Fiberglas Canada Inc. | Heat hardening sealant-gel for flexible couplings |
US4758003A (en) * | 1984-04-05 | 1988-07-19 | Quantum Group, Inc. | Method and apparatus for changing physical and chemical properties of materials |
US4837085A (en) * | 1987-12-15 | 1989-06-06 | Mcgroarty Bryan M | Joint leak stop membrane |
US4997695A (en) * | 1988-11-21 | 1991-03-05 | James Clem Corporation | Clay mixture having contamination resistance |
AU643751B2 (en) * | 1989-12-14 | 1993-11-25 | J P Walls, Inc. | Predecorated wallboard joint and method of joining predecorated wallboards to form a concealed joint |
US5628159A (en) * | 1989-12-14 | 1997-05-13 | Younts; Patty L. | Joint strip, method of forming a wall using the joint strip and wall made therefrom |
US5034160A (en) * | 1990-06-11 | 1991-07-23 | W.R. Grace & Co.-Conn. | Sprayable fireproofing composition |
DK49592D0 (en) * | 1992-04-13 | 1992-04-13 | Aalborg Portland As | CEMENT COMPOSITION |
US5736197A (en) * | 1992-11-30 | 1998-04-07 | Poly-Wall International, Inc. | Method of waterproofing rigid structural materials |
CA2085940A1 (en) * | 1992-11-30 | 1994-05-31 | John H. Gaveske | Method of waterproofing rigid structural materials |
NO180210C (en) * | 1993-11-10 | 1997-03-05 | Habberstad As Ing B | Device for sealing casting joints |
US6692566B2 (en) * | 1994-02-16 | 2004-02-17 | Beadcrete Pty, Ltd. | Surface finish of cementitious nature and containing glass beads |
FR2729658B1 (en) * | 1995-01-25 | 1997-04-04 | Lafarge Nouveaux Materiaux | COMPOSITE CONCRETE |
US5576065A (en) * | 1995-02-03 | 1996-11-19 | Poly Wall International, Inc. | Multilayered system for waterproofing rigid structural materials |
US5953864A (en) * | 1997-04-23 | 1999-09-21 | Rapid Wall Systems | Prefabricated modular concrete foundation wall systems and methods of constructing prefabricated modular concrete foundation wall systems |
IT1304954B1 (en) * | 1997-06-18 | 2001-04-05 | Ennio Zamperini | WATERPROOFING MANUFACTURE FOR CONSTRUCTION USE |
US6115979A (en) * | 1998-04-02 | 2000-09-12 | Horstketter; Eugene A. | Grout sealing apparatus for concrete panels, decks, and support beams and methods for their manufacture |
US6224700B1 (en) * | 1998-11-11 | 2001-05-01 | Mar-Flex Systems, Inc. | Methods for waterproofing architectural surfaces |
GB2371069B (en) * | 2001-01-15 | 2004-09-08 | Cementation Found Skanska Ltd | Waterstop for foundation elements |
US6951080B2 (en) * | 2002-05-10 | 2005-10-04 | Oryzatech Inc. | Culm blocks |
GB0220510D0 (en) * | 2002-09-04 | 2002-10-09 | Kane Kevin J O | Composite board |
US6948716B2 (en) * | 2003-03-03 | 2005-09-27 | Drouin Gerard | Waterstop having improved water and moisture sealing features |
US7437855B2 (en) * | 2003-05-16 | 2008-10-21 | Locke David D | Water and water vapor structural barrier |
-
2005
- 2005-05-20 WO PCT/CA2005/000778 patent/WO2005116354A1/en active Application Filing
- 2005-05-20 US US11/569,435 patent/US8122677B2/en active Active
- 2005-05-20 AU AU2005247966A patent/AU2005247966B2/en not_active Ceased
- 2005-05-20 CA CA2565467A patent/CA2565467C/en active Active
- 2005-05-20 GB GB0622028A patent/GB2429989B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991018946A1 (en) * | 1990-06-08 | 1991-12-12 | Minnesota Mining And Manufacturing Company | Water reactive sealant composition |
EP0692584A1 (en) * | 1994-07-15 | 1996-01-17 | Daniel Strasser | Waterstop seal for concrete works |
US6449914B1 (en) * | 1998-04-02 | 2002-09-17 | Eugene A. Horstketter | Grout sealing apparatus for concrete panels, decks, and support beams and methods for their fabrication |
DE19938368A1 (en) * | 1998-09-25 | 2000-04-20 | Fischer Gert | Concrete joint sealing |
Also Published As
Publication number | Publication date |
---|---|
GB2429989B (en) | 2009-06-17 |
AU2005247966A1 (en) | 2005-12-08 |
AU2005247966B2 (en) | 2011-07-21 |
GB2429989A (en) | 2007-03-14 |
US8122677B2 (en) | 2012-02-28 |
CA2565467A1 (en) | 2005-12-08 |
US20070245658A1 (en) | 2007-10-25 |
CA2565467C (en) | 2012-11-20 |
GB0622028D0 (en) | 2006-12-20 |
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