GB2179295A - Formwork panels - Google Patents
Formwork panels Download PDFInfo
- Publication number
- GB2179295A GB2179295A GB08619213A GB8619213A GB2179295A GB 2179295 A GB2179295 A GB 2179295A GB 08619213 A GB08619213 A GB 08619213A GB 8619213 A GB8619213 A GB 8619213A GB 2179295 A GB2179295 A GB 2179295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mesh
- panel
- aformwork
- depressions
- sheet
- 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.)
- Granted
Links
- 238000009415 formwork Methods 0.000 title claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 37
- 229920003023 plastic Polymers 0.000 claims abstract description 37
- 238000009877 rendering Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 23
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/842—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf
- E04B2/845—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf the form leaf comprising a wire netting, lattice or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/842—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf
- E04B2/847—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf the form leaf comprising an insulating foam panel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/38—Meshes, lattices or nets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2607/00—Walls, panels
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Building Environments (AREA)
Abstract
A formwork panel comprises lightweight sheet (10), e.g. corrugated card or foamed plastics, with mesh (12), e.g., welded wire mesh, secured to one or both sides (11) by depressions (13), e.g. formed by corrugations (14) in the mesh, bonded to the sheet (10), the corrugations (18) forming air spaces (17), between renderings (16) applied to both sides of the panel, thus preventing a "cold bridge" being formed by the mesh. <IMAGE>
Description
SPECIFICATION
Formwork panels
This invention relates to formwork panels, which
consist of lightweight sheets, possibly of insulating material,from one or both sides of which projectwire portionsforembedding in rendering material applied
in-situ,toform walls or insulate existing wallsto which the formwork panels are secured.
It is known to form or build up foamed plastics
sheets incorporating "3-D wire mesh" (i.e.,
constructions consisting of or effectively resulting in welded wire mesh in two parallel planes with
interconnecting wire portions, usually in zig-zag formation between the planes) with the
interconnecting wire portions extending through the foamed plastics and beyond at least at one side (but
usually at both sides). Such panels are expensive,
because of the cost of making "3-D wire mesh" and complexities of incorporating it is foamed plastics during the formation of the foamed plastics or fabricating the mesh from zig-zags ofwire and longitudinal wires welded to the peaks/troughs after
"sandwiching" the zig-zags between strips offoamed plastics which also have to be bonded to each other.
Another disadvantage of such panels is that interconnecting wire portions extending right through the foamed plastics from a "cold bridge" between renderings applied to both sides.
The object of the invention is to provide economical formwork panels that also do not have the disadvantage of forming a "cold bridge".
According to the present invention, a formwork panel comprises a lightweight sheet on at least one side ofwhich is disposed mesh substantially in one plane spaced from the sheet except four a plurality of depressions in the mesh at least some of which are secured to the sheet material.
The lightweight sheet may be formed of corrugated paper or card to which the depressions in the mesh are bonded, whereby the mesh may add to the rigidity afforded to the paper or card by the corrugations. If mesh with depressions as aforesaid is disposed on both sides of the lighweight sheet, the spaces afforded by the corrugations can form air insulation between renderings applied to both sides of the panel, in which case the corrugated paperor card amounts to a carrierforthe mesh on both sides, a providerofairspace (orspaces) and a "cold bridge" preventer if wire mesh is used.
Conveniently, however, the lightweight sheet may be formed offoamed plastics material, which - in addition to providing air spaces - may be of good insulating thermoplastics orthermosetting plastics or other hardening or hardened plastics. The sheet of foamed plastics material may be of any thickness to providethe required degree of insulation, an appreciable thickness allowing the depressions in the mesh on one or both sides to be partly embedded in the foamed plastics material -withoutany risk of forming a "cold bridge", butthe depressions in the mesh may be simply bonded to the surface ofthe foamed plastics sheet.Embedding ofthe depressions in thermoplastics may be effected by heating the
mesh (at least at the depressions) and pressing its
depressions against the plastics material;
alternatively, as also with thermosetting and other
plastics, the depressions may be co-moulded in the foamed plastics as it is being formed into the
lightweight sheet.
The mesh may be expanded metal, twisted wire
mesh orweldedwire mesh, preferably being plastics
coated, galavanised or otherwise corrosion-resistant.
The depressions in the mesh are preferably formed
by spaced parallel corrugations, preferably of
rectangularortrapezoidal form, which also permit them to be readily secured to the lightweight sheet by overlying adhesive tape.
Alternatively, the mesh may be formed of plastics material or a composite glass-fibre and resin
material, and the depressions in the mesh may be secured to the lightweight sheet by bonding or by double-sided adhesive tape.
Anumberofembodimentsoftheinventionwill now be described, by way of example only, with reference to the accompanying drawings, in which:
Figure 1 is an iso metric view of a piece of formwork panel in accordance with the invention consisting of corrugated card and welded mesh bonded to one side;
Figure2 is a fragmentary section of a formwork panel similarto that of Figure 1 but with welded mesh on both sides and shown with some rendering on both sides;
Figure 3 corresponds to Figure 1 but shows a piece offoamed plastics sheet material with welded mesh secured thereto by depressions in the mesh embedded in the plastics;; Figure 4 is a fragmentary section of a formwork panel similartothat of Figure 3 but with welded mesh secured on both sides and shown with some rendering on both sides;
Figure 5corresponds to Figure 3 but shows twisted wire mesh with depressions secured by overlying adhesive tape to foamed plastics sheet;
Figure 6is similar two Figures 3 and 5 but shows a plastics mesh with depressions secured by double-adhesivetape.
The formwork panel shown in Figure 1 consists of a lightweight sheet 10 formed of corrugated card on one side 11 of which is disposed welded mesh 12 substantially in one plane spaced from the sheet 10 exceptfora plurality of depressions 13 in the mesh formed by spaced parallel trapezoidal corrugations 14and secured to the sheet material by bonding with waterproof adhesive 15. When used to form a wall (notshown) or insulate an existing wall (notshown) to which the formwork panel is secured, rendering material 16 (see Figure 2!, such as cement, lightweightconcreteorplaster, isappliedthrough and overthewire mesh.
In Figure2welded mesh 12with depressions 13is secured to both sides 11 of the corrugated card lightweight sheet 10 and rendered, the spaces 17 afforded bythecorrugations 18forming air insulation between the renderings 16, and the corrugated card 10 amounts to a carrierforthe mesh 12 on both sides 11, a provider of air spaces 17, and a "cold bridge" preventer by separating the two sheets of mesh 12.
The lightweight sheet 10 may alternatively - and conveniently - be formed of foamed plastics material, as shown in Figures 3 to 6, which material - in addition to providing airspaces (notshown) - may be of good insulating thermoplastics orthermosetting plastics (or other hardening or hardened plastics), with the depressions 13 in the mesh 12 on one side 11 (as in
Figure 3) or on both sides (as in Figure 4) partly embedded in the foamed plastics material without anyriskofforminga "cold bridge" if thesheet 10is thick enough to keep the depressions 13 in the
respective sheets of mesh 12 apart even when in
register opposite each other.
In Figure 5 twisted wire mesh 12 has depressions 13 formed by spaced parallel corrugations 14 and is
secured to one side 11 of foamed plastics sheet 10 by adhesive tape 19 overlying the twists 20 at the bottom of the depressions 13.
The wire mesh 12 in the embodiments of Figures 1 to 5 is preferably plastics coated, galvanised or otherwise corrosion resistant.
In Figure 6, however, the mesh 12 is formed of
plastics material (or composite glass-fibre and resin
material) moulded or pressed with depressions 13 which are secured to one side 11 of foamed plastics sheet 10 by double-sided adhesive tape 21.
Although Figures 5 and 6 show mesh 12 only on one side 11 of the foamed plastics sheet 10, mesh
may be provided on both sides, and both sides
rendered, in similar mannerto Figures 2 and 4.
Claims (18)
1. Aformworkpanelcomprising lightweight sheet on at least one side of which is disposed mesh substantially in one plane spaced from the sheet exceptfor a plurality of depressions in the mesh at least some of which are secured to the sheet material.
2. Aformwork panel as in Claim 1 ,wherein the lightwieghtsheetisformed of corrugated paper or card to which the depressions in the mesh are
bonded.
3. Aformwork panel as in Claim 2, wherein mesh with depressions as aforesaid is disposed on both sidesofthe lightweight sheet.
4. Aformwork panel as in Claim 1, wherein the lightweight sheet is formed of foamed plastics
material.
5. Aformwork panel as in Claim 4, wherein the
depressions in the mesh are embedded in the foamed
plastics material.
6. Aformwork panel as in Claim S,wherein the
lightweight sheet is formed of thermoplastics and wire mesh is used, embedding of the depressions in the mesh in the thermoplastics being effected by
heating the mesh and pressing its depressions againstthe plastics material.
7. Aformwork panel as in Claim 5, wherein the depressions are co-moulded in the foamed plastics as it is being formed into the lightweight sheet.
8. Aformwork panel as in any one of the
preceding Claims, wherein the mesh is welded wire
mesh.
9. Aformwork panel as in any one of the Claims 1 to 7, wherein the mesh is twisted wire mesh.
10. Aformwork panel as in any one ofthe Claims 1 to 5, or Claim 7, wherein the mesh is expanded metal.
11. Aformwork panel as in any one of Claims 8to 10, wherein the mesh is plastics coated, galvanised or otherwise corrosion-resistant.
12. A formwork panel as in anyoneofthe preceding Claims, wherein the depressions in the mesh are formed by spaced parallel corrugations.
13. Aformwork panel as in Claim 12, wherein the corrugations are of rectangular ortrapezoidal form.
14. A formwork panel as in Claim 13, except as appendedto any one of Claims 5to 7,whereinthe corrugations in the mesh are secured to the lightweight sheet by overlying adhesive tape.
15. Aformwork panel as in any one of Claims 1 to 4, wherein the mesh is formed of plastics material or a composite glass-fibre and resin material.
16. Aformwork panel as in Claim 1 S,whereinthe depressions in the mesh are secured to the lightweight sheet by double-sided adhesivetape.
17. Aformwork panel substantially as hereinbefore described with reference to any one of the accompanying drawings.
18. Aformwork panel in any one of the preceding
Claims with rendering material applied through and over the mesh.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB858520521A GB8520521D0 (en) | 1985-08-15 | 1985-08-15 | Formwork panels |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8619213D0 GB8619213D0 (en) | 1986-09-17 |
| GB2179295A true GB2179295A (en) | 1987-03-04 |
| GB2179295B GB2179295B (en) | 1989-02-15 |
Family
ID=10583843
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB858520521A Pending GB8520521D0 (en) | 1985-08-15 | 1985-08-15 | Formwork panels |
| GB08619213A Expired GB2179295B (en) | 1985-08-15 | 1986-08-06 | Formwork panels |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB858520521A Pending GB8520521D0 (en) | 1985-08-15 | 1985-08-15 | Formwork panels |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8520521D0 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003103961A1 (en) * | 2002-06-11 | 2003-12-18 | Ross Mervyn Nosworthy | Composite board and process for making the board |
| ITBO20090833A1 (en) * | 2009-12-28 | 2011-06-29 | Ind Materiali Edil I S I M E S R Soc | LIGHTENING PANELS FOR CONCRETE STRUCTURES |
| ITUA20164467A1 (en) * | 2016-06-17 | 2017-12-17 | Nidyon S R L | Prefabricated element for the construction of an insulated concrete wall, and relative wall comprising this element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103421A (en) * | 2021-03-24 | 2021-07-13 | 江西雄宇（集团）有限公司 | Manufacturing method of self-heat-preservation non-bearing wallboard |
-
1985
- 1985-08-15 GB GB858520521A patent/GB8520521D0/en active Pending
-
1986
- 1986-08-06 GB GB08619213A patent/GB2179295B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003103961A1 (en) * | 2002-06-11 | 2003-12-18 | Ross Mervyn Nosworthy | Composite board and process for making the board |
| ITBO20090833A1 (en) * | 2009-12-28 | 2011-06-29 | Ind Materiali Edil I S I M E S R Soc | LIGHTENING PANELS FOR CONCRETE STRUCTURES |
| ITUA20164467A1 (en) * | 2016-06-17 | 2017-12-17 | Nidyon S R L | Prefabricated element for the construction of an insulated concrete wall, and relative wall comprising this element |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2179295B (en) | 1989-02-15 |
| GB8520521D0 (en) | 1985-09-18 |
| GB8619213D0 (en) | 1986-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920806 |