AU2004200839A1 - Contraction and expansion joints and formwork for concrete - Google Patents
Contraction and expansion joints and formwork for concrete Download PDFInfo
- Publication number
- AU2004200839A1 AU2004200839A1 AU2004200839A AU2004200839A AU2004200839A1 AU 2004200839 A1 AU2004200839 A1 AU 2004200839A1 AU 2004200839 A AU2004200839 A AU 2004200839A AU 2004200839 A AU2004200839 A AU 2004200839A AU 2004200839 A1 AU2004200839 A1 AU 2004200839A1
- Authority
- AU
- Australia
- Prior art keywords
- joint member
- flanges
- holes
- concrete slabs
- contraction
- 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.)
- Abandoned
Links
- 230000008602 contraction Effects 0.000 title claims description 21
- 238000009415 formwork Methods 0.000 title claims description 19
- 239000000463 material Substances 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
- E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/12—Packing of metal and plastic or elastic materials
- E01C11/126—Joints with only metal and prefabricated packing or filling
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/14—Dowel assembly ; Design or construction of reinforcements in the area of joints
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
- E04B1/483—Shear dowels to be embedded in concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
- E04C3/065—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web with special adaptations for the passage of cables or conduits through the web
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/046—L- or T-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0473—U- or C-shaped
Description
P/00/011I Regulation 3.2
AUSTRALIA
Patents Act 1990
ORIGINAL
COMPLETE SPECIFICATION STANDARD PATENT Invention Title: "CONTRACTION AND EXPANSION JOINTS AND FORMWORK FOR CONCRETE" The following statement is a full description of this invention, including the best method of performing it known to us: 2 TITLE: CONTRACTION AND EXPANSION JOINTS AND FORMWORK FOR CONCRETE THIS INVENTION relates to contraction and expansion joints and formwork for concrete.
Contraction and expansion joints are provided between adjacent concrete slabs to accommodate the thermal contraction and expansion of the slabs as the ambient temperature varies. In extreme conditions, eg., in full sunlight, the temperature variation over a day may be 30-40 0 C. If insufficient capacity for contraction is provided, the slab(s) may suffer cracking, which mechanically weakens the slab(s) and is aesthetically unacceptable. If insufficient capacity for expansion is provided, there is a tendency for one slab to be vertically displaced relative to an adjacent slab as the first slab attempts to move up and over the other slab.
There have been many types of contraction and expansion joints used in the past, but these usually have limitations, including cost of manufacture, ease of installation and/or expansion capacity, and inability to be used in continuous concrete pours.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a contraction or expansion joint member designed to avoid, or at least ameliorate the deficiencies of the known joints.
It is a preferred object of the present invention to provide such a contraction or expansion joint member which can be used for both sealed and unsealed joints between slabs.
It is a further preferred object of the present invention to provide a contraction or expansion joint member which can be used, or modified, to act as formwork, for the perimeter of concrete slabs as a substitute for conventional timber, steel or plastic formwork.
Other preferred objects of the present invention shall become apparent from the following description.
Throughout the specification, the terms "substantially vertical" and "substantially horizontal" shall be used to describe the common orientation of a component when in use.
In addition, throughout the specification, the term "expansion joint member" shall also include a "contraction joint member"; and the term "thermal expansion" shall also include "thermal contraction".
In one aspect, the present invention resides in an expansion joint member, including: a substantially vertical, planar body; at least two, vertically spaced, substantially horizontal, flanges extending from one side face of the body; and a plurality of sets of aligned holes in the flanges operable to receive supporting stakes or pins; the body, or a first portion of the body spaced from the one side face, being compressible to accommodate thermal expansion of concrete slabs when separated by the body.
Preferably, the body, or the first portion of the body spaced from the one side face, is formed of resiliently compressible material integral with, or attached to, a second portion of the body incorporating the one side face.
In one preferred embodiment, the second portion and the flanges are formed from sheet metal steel or aluminium) which is optionally roll-formed to shape. Preferably, the first portion of the body is formed by an elongate strip of resiliently compressible material, eg., an elastomeric material, such as rubber or foam-rubber, which may have a tear-off top portion or cover strip. A suitable material is sold under the trade mark "ABELFLEX".
In a second embodiment, the body is formed of a relatively low-density (or aerated) plastic expanded polystyrene); or the second portion of the body is formed of a relatively rigid, noncompressible plastic PVC) and the first portion is formed of the lowdensity (or aerated) plastic, eg., as a co-extrusion, or is adhered to the second portion, eg., by a suitable adhesive or thermal welding.
In a third embodiment, the body may be formed of a hollow extrusion where internal ribs are compressible to allow the "partial collapse" of the body to accommodate thermal expansion of the adjacent concrete slabs. The "partial collapse" is preferably a controlled, resilient "collapse" of the body.
Preferably, releasable locking means are provided between the body and/or the flanges, and the stakes or pins, to enable the vertical position of the expansion joint member, relative to an adjacent slab to be poured, to be vertically adjusted.
In a second aspect, the present invention resides in a formwork for concrete slabs employing the expansion joint member as hereinbefore described where the compressible material of the one portion of the body is optionally omitted.
Preferably, spaced holes are provided in the body, or in the second portion of the body, of the expansion joint member, to allow steel reinforcing rods and/or dowel members (used to keep slabs in vertical alignment) to extend through the expansion joint member. For use in formwork, these holes are omitted, or optionally, be provided as knock-outs.
In a third aspect, the present invention resides in a contraction joint member for concrete, where the compressible material of the body, or eg., the first portion of the body, is omitted or replaced by non-compressible material.
Such a member can be used to control shrinkage cracking in the resultant concrete structure.
BRIEF DESCRIPTION OF THE DRAWINGS To enable the invention to be fully understood, preferred embodiments will now be described with reference to the accompanying drawings, in which: FIG. 1 is a sectional end view of a first embodiment of the expansion joint member; FIG. 2 is a similar view of a second embodiment; FIG. 3 is a similar view of a third embodiment; FIGS. 4 and 5 are perspective views of the first embodiment in use; FIGS. 6 and 7 are respective section end views of joints formed, corresponding to FIG. 5 and 4, respectively; FIG. 8 is a perspective view of formwork based on the first embodiment; FIG. 9 is a perspective view of formwork based on the second embodiment; FIGS. 1 OA and 1 OB are schematic end views of alternative metal section profiles for the expansion joint of FIG. 1 and the formwork of FIG. 8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 and 4 to 7, the expansion joint member has substantially vertical body 11 where the body has a second body portion 12 and a pair of vertically spaced, substantially horizontal flanges 13, 14 roll-formed from a single piece of galvanised sheet steel. Spaced pairs of holes 15, 16 in the flanges 13, 14 are adapted to receive stakes 17 which are releasably locked relative to the expansion joint member by, eg., wedges 18 to allow the vertical height of the expansion member to be selectively adjusted. (In an alternative embodiment, not shown, the holes 15, 16 may be non-circular, and are releasably engaged by flanges or other releasable locking formations on the stakes 17.) The first portion 20 of the body 11 may be formed by an elongate strip of "ABELFLEX" (Registered Trade Mark) resiliently compressible material (or other resiliently compressible elastomeric material) which is fixed to the second portion 12, eg., by contact (or other suitable) adhesive (or double-sided tape) (not shown)). The first body portion 20 has a removable top strip 21, as illustrated in more detail in FIG. 5. In the embodiment shown in FIG. 5, the top strip 21 may be removed to leave a recess or groove 19 which may be filled with a sealant (not shown) to seal the expansion joint between the slabs CS.
It will be noted that the first portion 20 is of greater height by 10mm) than the second portion 12 of the body 11. For the sealed type joints shown in FIGS. 5 and 6, the expansion joint member will be installed in the configuration shown in FIGS. 5 and 6 where the top edge 22 of the first portion 20 provides a screeding surface for the concrete. (FIG. 6 shows the joint, after the concrete slabs have been poured, but before the top strip 21 has been removed and the sealant applied to the groove 19.) For a non-sealed type joint of FIGS. 4 and 7, the expansion plate member 10 will be used in an inverted configuration, where the adjacent top edges of the first and second portions 20, 12, will provide the screeding surface.
The flanges 13, 14 are offset by 10mm, relative to the centre line of the first body portion 20 and equally spaced about the centre line of the second body portion 12. The holes 23 are offset relative to the centre line of the second body portion 12, but are equally spaced about the centre line of the final expansion joint.
A plurality of holes 23 are provided in the second body portion 12 (and may also be provided through the first body portion 20) to allow reinforcing steel rods and/or dowels 30, to extend through the body 11. The dowels 30 may be of any suitable cross-section circular, square, rectangular, thin planar).
It will be readily apparent to the skilled addressee that the resiliently compressible material of the first body portion 20 will accommodate up to, eg., 10-15mm of thermal expansion/contraction between adjacent concrete slabs CS.
Referring to the embodiment of FIG. 2, the expansion joint member 110 has a substantially vertical body 111 with substantially horizontal flanges 1 13, 114, each having holes 11 5, 1 16 therethrough.
The body 111 is formed integrally with the flanges 113, 114 by an extrusion process, the body 111 being hollow, and divided into "zones" by resiliently compressible ribs 124. Spaced holes 123 through the body 111 allow the passage of steel reinforcing rods and/or dowels as hereinbefore described.
In the third embodiment of FIG. 3, the expansion joint member 210 again has a body 211 and flanges 213, 214 (with holes 215, 216) integrally formed by an extrusion method.
The body 211 is formed of plastics material with a high percentage of void spaces (or aeration) to allow resilient compression of 8 the body in the horizontal direction by the adjacent concrete slabs CS.
In an alternative embodiment, not shown, the body 211 may be formed by a co-extrusion, where the second body portion and flanges are integrally formed of a readily non-compressible, rigid material, eg, PVC, and the first body portion (spaced from the flanges 213, 214) are formed, by co-extrusion, of the compressible aerated) material.
As shown in FIGS. 1, 2, 3 and 6, a strip of tear-off tape 21A, 121A, 221A may be provided to provide a clear joint line.
In addition, as shown in FIGS. 2 and 3, a tear-off moulding strip 121, 221 may be provided on the body 112, 212, to enable the expansion joint members 110, 210 to be used in the preparation of sealed joints.
As shown in FIG. 8, by omitting the compressible material of the one body portion 20 and the holes 23, the roll-formed section (12, 13, 14) can be employed as formwork 10 A for the pouring of concrete slabs.
Similarly, as shown in FIG. 9, by the omission of the holes 123, through the body 111, the expansion plate member 110 of the second embodiment can also be used as external formwork 11 OA for the casting of concrete slabs. (It will be readily apparent to the skilled addressee that the expansion joint member 210 of the third embodiment of FIG. 3 can be similarly modified for use as external formwork.) FIGS. 10 A and 10 OB show alternative roll-formed profiles of the roll-formed metal section 10 OB, 10C of the expansion joint 10 of the first embodiment and of the corresponding formwork. In these alternatives, the flanges 13B, 14B, 13C, 14C are roll-formed intermediate the adjacent portions of the second body portion 12B, 12C, rather than as "edge" flanges as in FIG. 1.
By omitting the compressible material of the one body portion 20, the roll-formed section can be used in a contraction joint, eg., to control shrinkage cracking.
In the other alternative embodiments described and illustrated, the expansion joint member can be connected to a contraction joint member by substituting rigid (or semi-rigid) material for the compressible material in the joint member body.
The specific profiles illustrated are by way of illustrative examples only and their specific shapes are not essential to putting the invention into effect.
In addition, the profiles may be formed, eg., by folding or other suitable metal-working techniques, in addition to roll-forming.
The present invention provides expansion joint members, and/or external formwork, for concrete slabs, which are relatively inexpensive to manufacture, easy to install, and readily adaptable to a wide range of intended applications.
Various changes and modifications may be made to the embodiments described and illustrated without departing from the present invention.
Claims (17)
1. An expansion joint member, including: a substantially vertical, planar body; at least two, vertically spaced, substantially horizontal, flanges extending from one side face of the body; and a plurality of sets of aligned holes in the flanges operable to receive supporting stakes or pins; the body, or a first portion of the body spaced from the one side face, being compressible to accommodate thermal expansion of concrete slabs when separated by the body.
2. A joint member as claimed in Claim 1, wherein: the body, or the first portion of the body spaced from the one side face, is formed of resiliently compressible material integral with, or attached to, a second portion of the body incorporating the one side face.
3. A joint member as claimed in Claim 1 or Claim 2 wherein: the second portion and the flanges are formed from sheet metal optionally roll-formed to shape; and the first portion of the body is formed by an elongate strip of resiliently compressible material such as an elastomeric material, with an optional tear-off top portion or cover strip.
4. A joint member as claimed in Claim 1 or Claim 2 wherein: the body is formed of a relatively low-density or aerated plastic, or the second portion of the body is formed of a relatively rigid, non-compressible plastic and the first portion is formed of a low-density or aerated plastic, as a co-extrusion with the second portion, or is adhered to the second portion, by a suitable adhesive or thermal welding.
A joint member as claimed in Claim 1 or Claim 2 wherein: I the body is formed of a hollow extrusion where internal ribs are compressible to allow the "partial collapse" of the body to accommodate thermal expansion of adjacent concrete slabs in use.
6. A joint member as claimed in any one of Claims 1 to wherein: releasable locking means are provided between the body and/or the flanges, and the stakes or pins, to enable a vertical position of the joint member, relative to an adjacent slab to be poured, to be vertically adjusted.
7. A joint member as claimed in any one of Claims 1 to 3 wherein: the first portion is of greater vertical height than the second portion; and the flanges are vertically offset relative to the centre line of the first portion, being equally spaced about the centre line of the second portion.
8. A joint member as claimed in Claim 7 wherein: a plurality of holes are provided through the first and second portions, to allow reinforcing rods and/or dowels to extend therethrough, the holes being vertically aligned with the centre line of the first portion.
9. A joint member as claimed in Claim 4 or Claim 5 wherein: a moulding strip is detachably mounted on one end of the body and is removable, after the adjacent concrete slabs have been poured, to form a channel for a sealed joint.
A joint member as claimed in Claim 9 wherein: the flanges are equally spaced about the centre line of the body; and a plurality of holes are provided through the body, to allow reinforcing rods and/or dowels to extend therethrough, the holes being aligned with the centre line of the combined body and moulding strip.
11. A joint member as claimed in any one of Claims 1 to wherein: a strip of tear-off tape is provided at one end of the body, or of the first portion of the body to be removed after adjacent concrete slabs are poured to provide a clear joint line.
12. A contraction joint member including: a substantially vertical, planar body; at least two, vertically spaced, substantially horizontal, flanges extending from one side face of the body; and a plurality of sets of aligned holes in the flanges operable to receive supporting stakes or pins; the body, being relatively compressible to accommodate thermal contraction of concrete slabs when separated by the body.
13. A formwork for concrete slabs employing the expansion joint member as claimed in any one of Claims 1 to 11 or the contraction joint member as claimed in Claim 12.
14. A formwork as claimed in Claim 13 wherein: spaced holes or knock-outs are provided in the body of the expansion joint member, to allow steel reinforcing rods and/or dowel members, used to keep slabs in vertical alignment, to extend through the body.
An expansion joint member substantially as hereinbefore described with reference to FIG. 1; or FIG. 2; or FIG. 3; or FIGS. 1, 4 an 7; or FIGS. 1, 5 and 6; of the accompanying drawings.
1 6. A contraction joint substantially as hereinbefore described with reference to FIG. 1; or FIG. 10 A; or FIG. 10 OB of the accompanying drawings. 13
17. Formwork for concrete slabs substantially as hereinbefore described with reference to FIG. 8, or FIG. 9 of the accompanying drawings. DATED this third day of March 2004. CONNOLLY KEY JOINT PTY LTD By its Patent Attorneys FISHER ADAMS KELLY
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2004200839A AU2004200839A1 (en) | 2003-03-25 | 2004-03-03 | Contraction and expansion joints and formwork for concrete |
| AU2008207677A AU2008207677B2 (en) | 2003-03-25 | 2008-09-02 | Contraction joints and formwork for concrete |
| AU2009222558A AU2009222558B2 (en) | 2003-03-25 | 2009-10-01 | Expansion joints and formwork for concrete |
| AU2009101012A AU2009101012B4 (en) | 2003-03-25 | 2009-10-01 | Expansion joints and formwork for concrete |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003901357 | 2003-03-25 | ||
| AU2003901357A AU2003901357A0 (en) | 2003-03-25 | 2003-03-25 | Expansion joint/formwork |
| AU2003906119 | 2003-11-06 | ||
| AU2003906119A AU2003906119A0 (en) | 2003-11-06 | Expansion joint/formwork | |
| AU2004200839A AU2004200839A1 (en) | 2003-03-25 | 2004-03-03 | Contraction and expansion joints and formwork for concrete |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2008207677A Division AU2008207677B2 (en) | 2003-03-25 | 2008-09-02 | Contraction joints and formwork for concrete |
| AU2009222558A Division AU2009222558B2 (en) | 2003-03-25 | 2009-10-01 | Expansion joints and formwork for concrete |
| AU2009101012A Division AU2009101012B4 (en) | 2003-03-25 | 2009-10-01 | Expansion joints and formwork for concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2004200839A1 true AU2004200839A1 (en) | 2004-10-14 |
Family
ID=34381507
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2004200839A Abandoned AU2004200839A1 (en) | 2003-03-25 | 2004-03-03 | Contraction and expansion joints and formwork for concrete |
| AU2008207677A Expired AU2008207677B2 (en) | 2003-03-25 | 2008-09-02 | Contraction joints and formwork for concrete |
| AU2009101012A Expired AU2009101012B4 (en) | 2003-03-25 | 2009-10-01 | Expansion joints and formwork for concrete |
| AU2009222558A Expired AU2009222558B2 (en) | 2003-03-25 | 2009-10-01 | Expansion joints and formwork for concrete |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2008207677A Expired AU2008207677B2 (en) | 2003-03-25 | 2008-09-02 | Contraction joints and formwork for concrete |
| AU2009101012A Expired AU2009101012B4 (en) | 2003-03-25 | 2009-10-01 | Expansion joints and formwork for concrete |
| AU2009222558A Expired AU2009222558B2 (en) | 2003-03-25 | 2009-10-01 | Expansion joints and formwork for concrete |
Country Status (1)
| Country | Link |
|---|---|
| AU (4) | AU2004200839A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115822316A (en) * | 2022-11-17 | 2023-03-21 | 平煤神马建工集团有限公司 | Shear wall deformation joint formwork supporting device and formwork supporting construction method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952143A (en) * | 2016-05-24 | 2016-09-21 | 中交航局第四工程有限公司 | Combined steel template used for super-flat floor flattening |
| CN112065051B (en) * | 2020-08-03 | 2022-03-18 | 中国电建集团华东勘测设计研究院有限公司 | Construction method of large-volume concrete anti-vibration joint structure of pumped storage power station factory building |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1916376B2 (en) * | 1969-03-29 | 1976-04-01 | Lödige, Alois, Dipl.-Ing., 4790 Paderborn | DESIGN OF AN EXPANSION JOINT BETWEEN ON-SITE CONCRETE COMPONENTS |
| US4834576A (en) * | 1987-12-24 | 1989-05-30 | Settimio Argento | Expansion joint and form for concrete floors |
| AU604612B2 (en) * | 1988-09-05 | 1990-12-20 | Connolly, Alma Irene | Concrete keyed joints |
| DE8909099U1 (en) * | 1989-07-27 | 1989-12-14 | Meyers, Claude, Bruessel/Bruxelles, Be | |
| ES2060485B1 (en) * | 1991-11-25 | 1996-10-16 | Jalade Raymond Andre | MOLD FOR ORIGINAL FORMATION AND RECOMPOSITION OF EXPANSION JOINTS. |
| CH686894A5 (en) * | 1993-02-23 | 1996-07-31 | Anton H Erb | A method for producing a Dilatationsfuege between two abutting concrete parts. |
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2004
- 2004-03-03 AU AU2004200839A patent/AU2004200839A1/en not_active Abandoned
-
2008
- 2008-09-02 AU AU2008207677A patent/AU2008207677B2/en not_active Expired
-
2009
- 2009-10-01 AU AU2009101012A patent/AU2009101012B4/en not_active Expired
- 2009-10-01 AU AU2009222558A patent/AU2009222558B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115822316A (en) * | 2022-11-17 | 2023-03-21 | 平煤神马建工集团有限公司 | Shear wall deformation joint formwork supporting device and formwork supporting construction method |
| CN115822316B (en) * | 2022-11-17 | 2023-08-15 | 平煤神马建工集团有限公司 | Shear wall deformation joint formwork support device and formwork construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2008207677A1 (en) | 2008-09-25 |
| AU2009222558B2 (en) | 2011-08-25 |
| AU2009101012A4 (en) | 2009-11-12 |
| AU2008207677B2 (en) | 2012-02-02 |
| AU2009101012B4 (en) | 2010-03-18 |
| AU2009222558A1 (en) | 2009-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK5 | Application lapsed section 142(2)(e) - patent request and compl. specification not accepted |