AU2021221674A1 - Joint former apparatus - Google Patents
Joint former apparatus Download PDFInfo
- Publication number
- AU2021221674A1 AU2021221674A1 AU2021221674A AU2021221674A AU2021221674A1 AU 2021221674 A1 AU2021221674 A1 AU 2021221674A1 AU 2021221674 A AU2021221674 A AU 2021221674A AU 2021221674 A AU2021221674 A AU 2021221674A AU 2021221674 A1 AU2021221674 A1 AU 2021221674A1
- Authority
- AU
- Australia
- Prior art keywords
- joint
- upper wall
- lower wall
- wavelike configuration
- former apparatus
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/02005—Construction of joints, e.g. dividing strips
- E04F15/02022—Construction of joints, e.g. dividing strips with means for aligning the outer surfaces of the flooring elements
-
- 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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
-
- 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
-
- 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
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6104—Connections for building structures in general of slab-shaped building elements with each other the overlapping ends of the slabs connected together
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
- E04C2/322—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with parallel corrugations
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
- E04F15/14—Construction of joints, e.g. dividing strips
- E04F15/142—Dividing strips or boundary strips
- E04F15/145—Dividing strips or boundary strips adjustable in height
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2002/001—Mechanical features of panels
- E04C2002/004—Panels with profiled edges, e.g. stepped, serrated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/08—Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g. ceramics, concrete; of glass or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Road Paving Structures (AREA)
Abstract
A joint former apparatus for forming a joint between concrete
elements, the joint former apparatus including an upper wall and a lower
wall below the upper wall, wherein the upper wall forms a wavelike
configuration, the lower wall forms a wavelike configuration, and wherein
the wavelike configuration of the lower wall is longitudinally offset relative
to the wavelike configuration of the upper wall.
1 /13
8
2-o
Figure 1
uf
Figure 2
Description
1 /13
8
2-o
Figure 1
uf
Figure 2
The present invention relates to a joint former apparatus for forming a joint between adjacent concrete elements. More particularly, but not exclusively, the present invention relates to a joint former apparatus for forming a joint between adjacent concrete flooring panels.
It is known to provide a flooring surface, such as a floor of an industrial shed, with a plurality of concrete flooring panels. Having a plurality of concrete flooring panels enables better management of cracking than having one single concrete panel across the whole floor space. However, it is known that concrete flooring panels are prone to damage and spalling at joints between the panels, particularly as heavy equipment such as forklifts and the like travel repeatedly across the joints over time.
It has been proposed to provide edge protection systems for concrete panels for preventing damage to the panels and for preventing deflection at the joints between panels so as to provide a level floor surface which facilitates traffic and further prevents damage to both the flooring panels and to industrial equipment. However, the applicant has identified that such existing edge protection systems are typically expensive and are not readily recyclable.
The applicant has determined that it would be advantageous for there to be provided an improved joint former apparatus which obviates or at least alleviates one or more disadvantages of existing apparatus for forming joints between concrete elements.
In accordance with the present invention, there is provided a joint former apparatus for forming ajoint between concrete elements, thejoint former apparatus including an upper wall and a lower wall below the upper wall, wherein the upper wall forms a wavelike configuration, the lower wall forms a wavelike configuration, and wherein the wavelike configuration of the lower wall is longitudinally offset relative to the wavelike configuration of the upper wall.
Preferably, said longitudinal offset results in the wavelike configuration of the lower wall being out of phase with the wavelike configuration of the upper wall.
In a preferred form, the upper wall is vertical.
Preferably, the lower wall is vertical.
Preferably, the wavelike configuration of the lower wall is at a same frequency as the wavelike configuration of the upper wall.
In a preferred form, the wavelike configuration of the lower wall is at a same amplitude as the wavelike configuration of the upper wall.
It is preferred that said longitudinal offset results in the wavelike configuration of the lower wall being shifted by one half cycle relative to the wavelike configuration of the upper wall.
Preferably, the wavelike configuration of the lower wall has the same lateral extremities as the wavelike configuration of the upper wall.
Preferably, the wavelike configuration of the lower wall and the wavelike configuration of the upper wall are each formed by a series of planar sections. More preferably, the wavelike configuration of the lower wall and the wavelike configuration of the upper wall are each formed alternating between planar sections longitudinal to the joint and planar sections at an angle to thejoint. Even more preferably, the wavelike configuration of the lower wall and the wavelike configuration of the upper wall are each formed alternating between planar sections longitudinal to thejoint and planar sections at a 45 angle to the joint.
In a preferred form, the apparatus includes a horizontal separation barrier at lateral offsets between the upper wall and the lower wall.
Preferably, the apparatus is formed of plastic material.
Preferably, lateral offsets between the upper wall and the lower wall are arranged such that, in use, each lateral offset forms a dowel protrusion on one concrete element which is able to slide laterally with vertical support from the other concrete element.
In a preferred form, the upper wall has the same height as the lower wall. More preferably, the upper wall height is half a panel thickness of the concrete and wherein the lower wall height is also half the panel thickness.
Preferably, the apparatus is in the form of an intersection apparatus for forming an intersection between three or more concrete elements. More preferably, the apparatus is in the form of an intersection apparatus for forming an intersection between four concrete elements.
In one form, the apparatus includes a body formed by the upper and lower walls, together with a plurality of supports at spaced locations along a length of the body, and wherein the apparatus is arranged such that each of the supports is able to be rotated through a partial rotation about a longitudinal axis of the support between an unlocked condition and a locked condition. More preferably, each support is able to be height adjusted relative to the body in the unlocked condition and wherein each support is locked against height adjustment relative to the body in the locked condition.
Preferred embodiments of the invention will be described, by way of a non-limiting example only, with reference to the accompanying drawings in which:
Figure 1 shows a joint former apparatus in accordance with one example of the present invention;
Figure 2 is a perspective view showing the joint former apparatus in use in forming a joint between concrete elements;
Figure 3 is a perspective view showing the concrete elements separating at a joint formed by the joint former apparatus;
Figure 4 is a cross-sectional view of the joint shown in Figure 3;
Figure 5 is a top view of the joint shown in Figure 3;
Figure 6 is another top view of the joint shown in Figure 3;
Figure 7 is another top view of the joint shown in Figure 3;
Figure 8 is a top view showing relative movement between the concrete elements at thejoint;
Figure 9 is another top view showing relative movement between the concrete elements at the joint;
Figure 10 is a detailed perspective view of the joint former apparatus shown prior to pouring concrete;
Figure 11 is a perspective view of thejoint former apparatus;
Figure 12 is a cross-sectional view showing load transfer between the concrete elements;
Figure 13 is another cross-sectional view showing load transfer between the concrete elements;
Figure 14 is a cross-sectional view showing movement between the concrete elements;
Figure 15 is a perspective view of the joint forming apparatus shown in situ against a poured concrete element;
Figure 16 is a cross-sectional view of a joint showing a horizontal wall acting as a slip joint to allow one concrete element to pull away from the other;
Figure 17 is a top perspective view of the joint showing the horizontal wall;
Figure 18 shows a perspective view of a modular intersection part for forming a corrosion free joint former intersection;
Figure 19 shows a perspective view of a corner intersection formed from two of the parts shown in Figure 18;
Figure 20 shows a perspective view of a three-way comer intersection formed from three of the parts shown in Figure 18;
Figure 21 shows a perspective view of a four-way corner intersection formed from four of the parts shown in Figure 18;
Figure 22 is a perspective view of a full two-way intersection joint former;
Figure 23 is a perspective view of a full three-way intersection joint former;
Figure 24 is a perspective view of a full four way intersection joint former; and
Figure 25 is a perspective view showing twist-and-lock height adjustment of the apparatus, including a twist-and-lock stake bracket.
With reference to Figures 1 to 25 of the drawings, there is shown a corrosion free joint former system which may provide particular advantages in terms of providing a simple, recyclable and relatively inexpensive apparatus for preventing spalling between concrete elements. Advantageously, the corrosion free joint former system shown in the drawings serves to form protruding tongues which act as dowels in the unitary structure of concrete elements for providing vertical load transfer between adjacent concrete elements across a joint.
More specifically, as can be seen in Figure 1, there is provided a joint former apparatus 10 for forming a joint 12 between concrete elements 14, 16. The joint former apparatus 10 includes an upper wall 18 and a lower wall 20 below the upper wall 18. The upper wall 18 forms a wavelike configuration 22 when viewed from above. Similarly, the lower wall 20 forms a wavelike configuration 24 when viewed from above. The wavelike configuration 24 of the lower wall 20 is longitudinally offset 26 relative to the wavelike configuration 22 of the upper wall 18. In the example shown in the drawings, the longitudinal offset 26 results in the wavelike configuration 24 of the lower wall 20 being out of phase with the wavelike configuration 22 of the upper wall 18.
In the example shown, the upper wall 18 is vertical and the lower wall 20 is also vertical. Advantageously, this facilitates operation of the joint former apparatus 10 as a barrier for forming two separate concrete elements 14, 16 at the joint 12 when the concrete is poured.
As depicted, the wavelike configuration 24 of the lower wall 20 is at a same frequency as the wavelike configuration 22 of the upper wall 18. In other words, the distance of a full cycle of the wave of the lower wall 20 is the same as the distance of a full cycle of the wave of the upper wall 18. Furthermore, the wavelike configuration 24 of the lower wall 20 is at a same amplitude (that is, the lateral distance between extremities in the wave form) as the wavelike configuration 22 of the upper wall 18.
The longitudinal offset 26 results in the wavelike configuration 24 of the lower wall 20 being shifted by one half cycle relative to the wavelike configuration 22 of the upper wall 18. This arrangement results in a regular set of upper meshing teeth 32 between the concrete elements 14, 16 at an upper half of the concrete elements 14, 16, and a regular set of lower meshing teeth 34 between the concrete elements 14, 16 at a lower half of the concrete elements 14, 16. The upper meshing teeth 32 and the lower meshing teeth 34 are staggered by virtue of the longitudinal offset 26 such that the upper meshing teeth 32 and the lower meshing teeth 34 form dowels (or platforms) for vertical load transfer between the concrete elements 14, 16.
The wavelike configuration 24 of the lower wall 20 has the same lateral extremities as the wavelike configuration 22 of the upper wall 18.
The wavelike configuration 24 of the lower wall 20 and the wavelike 22 configuration of the upper wall 18 are each formed by a series of planar sections - that is, the wavelike configurations are formed of a series of planar sections rather than curved sections. The wavelike configuration 24 of the lower wall 20 and the wavelike configuration 22 of the upper wall 18 are each formed alternating between planar sections 28 longitudinal to thejoint 12 and planar sections 30 at an angle to thejoint 12. The wavelike configuration 24 of the lower wall 20 and the wavelike configuration 22 of the upper wall 18 are each formed alternating between planar sections 28 longitudinal to the joint 12 and planar sections
30 at a 45 angle to the joint 12. Advantageously, the angle of 45° facilitates natural shrinkage of the concrete material during drying.
The apparatus 10 includes ahorizontal separation barrier 36 at lateral offsets between the upper wall 18 and the lower wall 20. The joint former apparatus 10 may be formed of plastic material. Advantageously, this may result in improved recyclability as well as in improving low-cost manufacture of the product.
The lateral offsets between the upper wall 18 and the lower wall 20 are arranged such that, in use, each lateral offset forms a toothed dowel protrusion 32 on one concrete element 14 which is able to slide laterally with vertical support from a toothed dowel protrusion 34 on the other concrete element 16. In addition, upper meshing teeth 32 and lower meshing teeth 34 provide lateral support from one concrete element 14 to the other concrete element 16.
As shown in Figure 11, the upper wall 18 may have the same height as the lower wall 20. In this way, the upper wall height is half a panel thickness of the concrete element and the lower wall height is also half the panel thickness.
With reference to Figures 18 to 24, the apparatus 10 may be in the form of an intersection apparatus 38 for forming an intersection between two or more concrete elements. The intersection apparatus 38 may be in the form of an intersection apparatus module 40. With reference to Figure 19, two intersection apparatus modules 40 may be combined to provide an intersection apparatus for forming an intersection between two concrete elements. With reference to Figure 20, three intersection apparatus modules 40 may be combined to provide an intersection apparatus for forming an intersection between three concrete elements. As shown in Figure 21, four intersection apparatus modules 40 may be combined to provide an intersection apparatus for forming an intersection between four concrete elements. In this way, the apparatus may be in the form of an intersection apparatus for forming an intersection between two, three or four concrete elements. Furthermore, sections of the joint former apparatus 10 may be joined so as to form longer sections. Accordingly, Figure 22 shows an intersection apparatus 38 for forming an intersection between two concrete elements, Figure 23 shows an intersection apparatus 38 for forming an intersection between three concrete elements, and Figure 24 shows an intersection apparatus 38 for forming an intersection between four concrete elements.
With reference to Figures 25, the joint former apparatus 10 may be provided with a twist and lock height adjustment system. More specifically, the apparatus 10 may include a body 42 formed by the upper 18 and lower walls 20, together with a plurality of supports 44 at spaced locations along a length of the body 42. The apparatus 10 may be arranged such that each of the supports 44 is able to be rotated through a partial rotation about a longitudinal axis of the support 44 between an unlocked condition and a locked condition. More specifically, each support 44 may be able to be height adjusted relative to the body 42 in the unlocked condition, whereas each support 44 is locked against height adjustment relative to the body 42 in the locked condition.
The following features and advantages may be provided and achieved by examples of the invention, according to the following aspects:
Concrete Only Disruptive Edge Protection
- The sacrificial waved plastic joint former shapes the concrete either side of ajoint into a full depth waved profile. - The disruptive wavedjoint line provides an impact free transition of MHE wheels
to minimise spalling and wheel maintenance by ensuring wheel contact is supported simultaneously on both sides of the joint. - Concrete wears evenly either side of the joint to minimise spalling and maintain impact free wheel transition over the life of the concrete floor. - The UPVC plastic joint former is sacrificial (one side) and wears down as the
concrete does. - Corrosion free spalling protected (armoured) construction/contraction joint for the industrial or pavements markets, suitable for all environments. - Waved profile allows for both contraction and lateral movement. The teeth of the waves are at 450 to provide 1:1 lateral movement vs contraction from shrinkage. - Connectable to form large run lengths of the wave profile in concrete.
Concrete to Concrete Load Transfer
- The product is a forming tool that shapes the concrete into the required loaf transfer joint profile. Joint is free of tradition steel construction and traditional load transfer devices (dowels). - Interlocking waved teeth sit on each other in both directions to provide load transfer and prevent slab deflection. - Load transfer allows for up to a full 20mm of supported joint opening. - The teeth are even spaced across the full length of the joint give continuous load transfer. - Does not require traditional dowels (round, square, plate) and sleeve load transfer systems. - The waved teeth allow for both contraction and lateral movement. The teeth of
the waves are at 450 to provide 1:1 lateral movement vs contraction from shrinkage. - Concrete teeth are separated by a plastic slip plane to de-bond joint halves and reduce restraint when halves open. - Load transfer is full half slab depth to maximise shear cone size.
Debonding Slip Joint
- The plastic sacrificial former acts as a full depth separation plate in the joint to de-bond the concrete slabs (either side). - The UPVC horizontal shut off wall of the former acts as a slip joint allowing one
slab to pull away from the other in contraction due to concrete shrinkage. - The corrosion free horizontal wall remains in place to aid any future joint
movements (expansion, contraction or lateral). - The horizontal wall sits at the halfway point of the slab allowing for the alternation of the wave profile.
Modular Intersection
- Modular intersection which allows for 2-Way, 3-Way and 4-Way joint connection. - Maintains load transfer through intersection.
- Corrosion free construction.
Twist and Lock Height Adjustment
- Built in formwork bracing and height adjustment system. - Fixes joint in place for concrete pouring (construction or contraction joints). - Staking system allows for height adjustment and levelling, with a twist and lock feature. - Bracket shape provides anchorage of the joint profile into one slab.
While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. It will be apparent to a person skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention. Thus, the present invention should not be limited by any of the above described exemplary embodiments.
The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.
List of numbered features
Joint former apparatus 10 Joint 12 Concrete elements 14, 16 Upper wall 18 Lower wall 20 Wavelike configuration 22 Wavelike configuration 24 Longitudinal offset 26 Planar sections longitudinal to the joint 28 Planar sections at an angle to the joint 30 Upper teeth 32 Lower teeth 34 Horizontal separation barrier 36 Intersection apparatus 38 Intersection apparatus module 40 Body 42 Support 44
Claims (20)
1. Ajoint former apparatus for forming ajoint between concrete elements, thejoint former apparatus including an upper wall and a lower wall below the upper wall, wherein the upper wall forms a wavelike configuration, the lower wall forms a wavelike configuration, and wherein the wavelike configuration of the lower wall is longitudinally offset relative to the wavelike configuration of the upper wall.
2. A joint former apparatus as claimed in claim 1, wherein said longitudinal offset results in the wavelike configuration of the lower wall being out of phase with the wavelike configuration of the upper wall.
3. A joint former apparatus as claimed in claim 1 or claim 2, wherein the upper wall is vertical.
4. A joint former apparatus as claimed in any one of claims 1 to 3, wherein the lower wall is vertical.
5. A joint former apparatus as claimed in any one of claims 1 to 4, wherein the wavelike configuration of the lower wall is at a same frequency as the wavelike configuration of the upper wall.
6. A joint former apparatus as claimed in any one of claims 1 to 5, wherein the wavelike configuration of the lower wall is at a same amplitude as the wavelike configuration of the upper wall.
7. A joint former apparatus as claimed in claim one, wherein said longitudinal offset results in the wavelike configuration of the lower wall being shifted by one half cycle relative to the wavelike configuration of the upper wall.
8. A joint former apparatus as claimed in any one of claims 1 to 7, wherein the wavelike configuration of the lower wall has the same lateral extremities as the wavelike configuration of the upper wall.
9. A joint former apparatus as claimed in any one of claims 1 to 8, wherein the wavelike configuration of the lower wall and the wavelike configuration of the upper wall are each formed by a series of planar sections.
10. A joint former apparatus as claimed in claim nine, wherein the wavelike configuration of the lower wall and the wavelike configuration of the upper wall are each formed alternating between planar sections longitudinal to thejoint and planar sections at an angle to the joint.
11. A joint former apparatus as claimed in claim 10, wherein the wavelike configuration of the lower wall and the wavelike configuration of the upper wall are each formed alternating between planar sections longitudinal to thejoint and planar sections at a 450 angle to the joint.
12. A joint former apparatus as claimed in any one of claims 1 to 11, wherein the apparatus includes a horizontal separation barrier at lateral offsets between the upper wall and the lower wall.
13. A joint former apparatus as claimed in any one of claims 1 to 12, wherein the apparatus is formed of plastic material.
14. Ajoint former apparatus as claimed in any one of claims I to 13, wherein lateral offsets between the upper wall and the lower wall are arranged such that, in use, each lateral offset forms a dowel protrusion on one concrete element which is able to slide laterally with vertical support from the other concrete element.
15. A joint former apparatus as claimed in any one of claims 1 to 14, wherein the upper wall has the same height as the lower wall.
16. A joint former apparatus as claimed in claim 15, wherein the upper wall height is half a panel thickness of the concrete and wherein the lower wall height is also half the panel thickness.
17. A joint former apparatus as claimed in any one of claims 1 to 16, wherein the apparatus is in the form of an intersection apparatus for forming an intersection between three or more concrete elements.
18. A joint former apparatus as claimed in claim 17, wherein the apparatus is in the form of an intersection apparatus for forming an intersection between four concrete elements.
19. A joint former apparatus as claimed in any one of claims 1 to 18, wherein the apparatus includes a body formed by the upper and lower walls, together with a plurality of supports at spaced locations along a length of the body, and wherein the apparatus is arranged such that each of the supports is able to be rotated through a partial rotation about a longitudinal axis of the support between an unlocked condition and a locked condition.
20. A joint former apparatus as claimed in claim 19, wherein each support is able to be height adjusted relative to the body in the unlocked condition and wherein each support is locked against height adjustment relative to the body in the locked condition.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021221674A AU2021221674A1 (en) | 2021-08-25 | 2021-08-25 | Joint former apparatus |
| GB2212304.6A GB2612176B (en) | 2021-08-25 | 2022-08-24 | Joint former apparatus |
| US17/895,244 US20230061416A1 (en) | 2021-08-25 | 2022-08-25 | Joint former apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021221674A AU2021221674A1 (en) | 2021-08-25 | 2021-08-25 | Joint former apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021221674A1 true AU2021221674A1 (en) | 2023-03-16 |
Family
ID=83902196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021221674A Pending AU2021221674A1 (en) | 2021-08-25 | 2021-08-25 | Joint former apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20230061416A1 (en) |
| AU (1) | AU2021221674A1 (en) |
| GB (1) | GB2612176B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1106498S1 (en) * | 2023-08-24 | 2025-12-16 | Illinois Tool Works Inc. | Joint former |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2078693A (en) * | 1934-05-18 | 1937-04-27 | Riley M Simrall | Expansion, contraction, and construction joint for concrete pavements and the like |
| US2300995A (en) * | 1940-05-08 | 1942-11-03 | Robert B Tufts | Transverse expansion joint |
| US4332504A (en) * | 1979-11-05 | 1982-06-01 | Motonosuke Arai | Expansion joints for roads |
| DE102009052751A1 (en) * | 2009-11-11 | 2011-05-26 | Maurer Söhne Engineering GmbH & Co. KG | Devices for bridging expansion joints, profile construction and method for producing joint profiles |
| GB201115940D0 (en) * | 2011-09-14 | 2011-10-26 | Permaban Ltd | Movement joint |
| AR090164A1 (en) * | 2012-02-27 | 2014-10-22 | Hengelhoef Concrete Joints Mfg Nv | EXPANSION MEETING |
| NZ725849A (en) * | 2014-05-12 | 2018-12-21 | Rcr Flooring Products Ltd | Arris protection joint |
| ITUB20152883A1 (en) * | 2015-08-05 | 2017-02-05 | Edil Noli Srl | MODULAR PREFABRICATED JOINT, PARTICULARLY FOR INDUSTRIAL FLOORS AND METHOD FOR ITS PRODUCTION |
| BR112019024429B1 (en) * | 2017-05-23 | 2023-02-07 | Lynks | EXPANSION JOINT CONFIGURED TO BE PLACED BETWEEN THE FIRST AND SECOND CONCRETE SLABS |
| CN110656754A (en) * | 2019-10-10 | 2020-01-07 | 徐州众擎建筑科技有限公司 | Structural joint |
-
2021
- 2021-08-25 AU AU2021221674A patent/AU2021221674A1/en active Pending
-
2022
- 2022-08-24 GB GB2212304.6A patent/GB2612176B/en active Active
- 2022-08-25 US US17/895,244 patent/US20230061416A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB2612176B (en) | 2023-12-06 |
| US20230061416A1 (en) | 2023-03-02 |
| GB202212304D0 (en) | 2022-10-05 |
| GB2612176A (en) | 2023-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2622146B1 (en) | Construction block | |
| EP2365150B1 (en) | Lost shuttering | |
| US1031926A (en) | Building construction. | |
| MXPA06014960A (en) | Insulated concrete form system with variable length wall ties. | |
| CA2297972C (en) | Building panels for use in the construction of buildings | |
| CA2696981A1 (en) | Building block system | |
| US20230061416A1 (en) | Joint former apparatus | |
| AU2024204630A1 (en) | Construction system, components for a construction system and method of construction using components of a construction system | |
| GB2504720A (en) | Reinforced joints between precast concrete elements | |
| RU2585330C2 (en) | Universal house-building system | |
| WO1980002301A1 (en) | Improved building block and structures formed therewith | |
| US1726031A (en) | Precast roof slab | |
| US9464437B1 (en) | Precast I-beam concrete panels | |
| KR100709304B1 (en) | Civil Structure and Construction Method Using Composite Pile and Steel Sheet Pile | |
| US1955584A (en) | Plank construction system | |
| AU2012206266B2 (en) | Reversible, thermo-acoustic panel for reversible, variable-geometry formwork | |
| US1799400A (en) | Building construction | |
| US683441A (en) | Fireproof grain-elevator. | |
| US2085146A (en) | Building structure | |
| CN114108996B (en) | Construction device and method for building filling wall without floor bricks | |
| EP4407107A1 (en) | Structural panel, flooring system and corresponding method | |
| US2708846A (en) | Prefabricated fireproof building construction | |
| US1603699A (en) | Interlocked structure | |
| US1164055A (en) | Silo and building-tiles therefor. | |
| US1066020A (en) | Bonded concrete construction. |