CA2111801A1 - Insulated construction form element and reinforcement therefor, and wall construction - Google Patents
Insulated construction form element and reinforcement therefor, and wall constructionInfo
- Publication number
- CA2111801A1 CA2111801A1 CA 2111801 CA2111801A CA2111801A1 CA 2111801 A1 CA2111801 A1 CA 2111801A1 CA 2111801 CA2111801 CA 2111801 CA 2111801 A CA2111801 A CA 2111801A CA 2111801 A1 CA2111801 A1 CA 2111801A1
- Authority
- CA
- Canada
- Prior art keywords
- panels
- cross members
- construction
- formwork
- hollow
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- 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
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
- E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves
-
- 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
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2002/867—Corner details
Abstract
A hollow construction form element for use in the erection of construction components of poured flowable construction materials, the element acting as formwork for pouring and containing of the materials and thereafter acting as thermal insulation the element having, an inner formwork panel, an outer formwork panel, at least one of the inner and outer formwork panels being formed of rigid mouldable thermal insulation material, the panels having interlocking upper and lower formations, a plurality of thermoplastic fire resistant cross members extending between the inner and outer formwork panels and defining inner and outer ends, and top and bottom edges, embedment formations formed on at least one of the inner and outer ends of the cross members, embedded in the at least one of the inner and outer formwork panels, and, hollow spaces defined between the formwork wall panels, and above and below the top and bottom edges of the cross members, to permit flow of the pourable material. A plurality of vertical dovetail channels are provided for water drainage or for improving the anchorage of architectural coatings to the wall surface. Also disclosed is a reinforcing framework for use in making such hollow construction form elements, and a wall construction employing such construction form elements.
Description
. ~ 21118~1 FIELD OF THE INVENT I ON
The invention relates to an insulated construction form element, and in particular to a construction form element which is a hollow block member made of thermal insulation material, which is adapted to receive and form castable construction material such as concrete or the like therein, and to a frame for incorporation in such a form element.
BACKGROUND OF THE INVENTION
In conventional construction techniques, a wall made of castable concrete material is usually first of all defined by two panels of formwork erected side by side. A castable material such as concrete is then poured in the formwork and allowed to cure. In most cases the formwork is then removed. If it is desired, as in many cases, to apply thermal insulation to the wall, this is usually applied by attaching a layer of insulation material to the concrete, either on the inside of the wall, or in some cases on the outside of the wall, or in rare cases on both.
Naturally, within reason the more insulation that is applied, the better will be the insulation of the building. However it is well known that the application of insulation materials directly to a poured concrete surface can be a tiresome job. In some cases it is necessary to apply wooden studs, and then to support the insulation between the studs. In other cases, more complex systems exist for applying thermal insulation using strips of metal, . .
21118~1 through which fastenings can be applied, which then pass through the insulation material into the wall. However, it is apparent that whatever system is used for applying insulation, it involves the use of skilled trades people, and further time and materials, beyond that require to erect the formwork and to pour the wall itself.
Accordingly, it has been proposed in the past to provide hollow blocks made of thermal insulation material.
The blocks were then simply erected one above the other and secured in position. If required, reinforcing rods were placed in the hollows in the blocks. Concrete was then poured down through the hollows defined within the blocks, and was allowed to cure. In this way, the blocks actually defined the formwork enclosing the concrete, or other materials. Thus it was no longer necessary to first of all erect formwork and then remove it. In addition, since the blocks were formed of thermal insulation material, once the wall had cured, it was fully insulated both inside and out.
This system had numerous advantages, since it reduced substantially the time spent by skilled tradesmen.
However with certain of these proposals there have been unforseen problems. At first sight it appears that the solution to the problem is to mould a hollow open ended - block out of an integral structure of insulating material.
Typically the insulating material will be a mouldable thermoplastic having insulation properties. Expanded ` ~ 2111801 polystyrene bead materials are particularly suitable since they have high R values, and are relatively low in cost, and are easy to manufacture in a wide variety of moulded shapes.
It is of course apparent that in the design of any such block there will be inner and outer block walls, and the block walls must define a hollow space between them. It is also apparent that there must be some junction structure extending transversely through the block, at least at intervals, so as to hold the two block walls together. In the past, all of this structure, both the inner and the outer block walls, and the transverse junctions, have been moulded integrally of thermoplastic insulation materials.
This structure allows for relatively high speed production techni~ues, and minimizes costs. However, there is a serious drawback.
Once the blocks are erected, and concrete is poured through the hollow interior and allowed to cure, it is apparent that there will be openings extending completely through the concrete, at numerous points where the transverse junctions of the blocks extend through from one side to the other. If water leakage is a problem, it will be most likely to find it's way through the wall at these openings. A more serious disadvantage however is that these openings, being filled with thermoplastic insulation - material, constitute a fire hazard. Most of such thermoplastic insulation materials are inflammable to some 2111~01 extent or another. Conse~uently, the presence of these transverse junction portions of thermoplastic insulation materials, at spaced intervals in the wall, provide pathways through which fire can travel from one side of the wall to the other. Various attempts have been made to provide fire resistant insulation materials. However while fire resistant insulation materials do reduce the fire problem to some extent, they are not totally reliable, and the resulting fire hazard is simply not acceptable. Accordingly, in U.S. Letters Patent 4,731,968, inventor D. Obino, Issued March 22, 1988, it has been proposed to manufacture separate inner and outer wal 15 block walls, and then to join the separate inner and outer walls together by inserts of sheet metal such as steel. This does provide a solution to the problem of the fire path created through the wall by the previous form of blocks moulded with integral transverse walls of insulation material. However, the use of sheet metal itself creates further problems.
Obviously, the sheet metal components must be fabricated and stamped out separately from the manufacture of the plastic components. It is apparent that the use of a number of sheet metal transverse walls, extending from the inside to the outside of each block, provides a large number of heat transfer paths, through which heat will travel from one side of the wall to the other. This then tends to ` ~ 2~118~I
defeat the purpose of insulating the wall in the first place.
From the viewpoint of providing a short term solution to the problem, ie. to assist in erecting the blocks and to hold the blocks together while the concrete it setting, the sheet metal inserts, if they did not produce any of the other problems, would be acceptable, apart from the extra cost. However, it is apparent that from the viewpoint of a long term solution, the use of sheet metal transverse walls is unnecessary. Once the concrete or other poured material has cured and set hard, it is structurally rigid and will bear the load of the remainder of the structure on top of it.
From that time onwards, the inner and outer walls of each of the thermoplastic blocks are simply providing an insulation function and nothing more. In other words, once the poured material has set, the requirement for providing formwork, and containment of the flowable poured material with transverse metal junctions through the wall, is no longer present. All that is required is to provide the necessary degree of insulation.
For this insulation purpose, all that is reguired of the transverse junction portions of the blocks, is that they shall assist in holding the inner and outer walls of the blocks against the respective inner and outer surfaces of the cured wall. They no longer perform any structural , ` 2111801 function. Consequently, the use of sheet metal transverse junctions, once the wall has set hard, appears to be an unnecessary degree of "over-engineering".
Further disadvantages resulted from the light weight of the blocks. This factor caused the blocks to "float" in the concrete. Tying methods of some kind were required to overcome this.
BR I EF SUMMARY OF THE I NVENT I ON
With a view to overcoming these conflicting problems the invention comprises a hollow construction form element for use in the erection of construction components of poured flowable construction materials, said element acting as formwork for pouring and containing of said materials and thereafter acting as thermal insulation for said construction component, said element comprising, an inner formwork panel, an outer formwork panel, at least one of said inner and outer formwork panels being formed of rigid mouldable thermal insulation material, a plurality of thermoplastic non-flammable cross members extending between said inner and outer formwork panels at spaced intervals therealong and defining inner and outer ends, and top and bottom edges,inner axial junction strips extending between adjacent inner ends, and outer axial junction strips extending between adjacent outer ends, of said plurality of cross members, embedment formations formed on at least one of said inner and outer ends of said cross members, said ` 21~1~01 embedment formations being embedded in said at least one of said inner and outer formwork panels, and, hollow spaces deined between said inner and outer formwork wall panels, and hollow spaces being defined above and below said top and bottom edges of said cross members, whereby to permit flow of said pourable material therearound.
The invention further comprises such a hollow construction form element and including upper and lower edges, and end edges, defined by said inner and outer panels, and interlocking sealing members formed thereon, for sealing between adjacent said form elements.
The invention further comprises such a hollow construction form element and including keying formations on inner surfaces of said inner and outer formwork panels, for embedment in said cast material whereby to secure said inner and outer formwork panels to said cast material.
The invention further comprises such a hollow construction form element and including vertical liquid drain channels formed in the outer surfaces of said outer formwork panels.
The invention further comprises such a hollow construction form element and wherein said cross members define complimentary recesses and abutments shaped to fit therein whereby to form locking means, locking adjacent blocks above and below to one another.
` ~ 21il8Ql The invention further comprises such a construction form element wherein said cross members define upper and lower wall portions, located in respective upper and lower planes offset from one another.
The invention further comprises such a construction form element wherein said cross members define a spacing between said upper and lower wall portions.
The invention further comprises a wall formed of such construction form elements with said outer panels on the exterior of said wall, and water permeable mesh material secured to said outer panel on its exterior side, said mesh material being adapted to prevent passage of earth and fill into said vertical liquid drain channels in said outer panel whereby water permeating said earth and fill may pass through said mesh material and flow freely down said channels.
Further features of the invention include a corner form element having one end wall and an opening in a side wall so as to form interlocking corners.
The invention also features detents or domes at predetermined locations along the exterior surface of each inner and outer panel, to identify points of greatest strengths for the insertion of asteners.
Another aspect of the invention comprises a support frame for incorporation in a construction form element in accordance with the invention, the support frame having a 2~1~8~1 plurality of transverse junction portions, and a plurality of upright bracing struts, the bracing struts preferably having interlocking fastening means at their upper and lower ends for securing the courses of blocks together, and the frame further incorporating axial space apart parallel bracing members connecting said transverse junction members and forming the same into an integral frame for incorporation in a construction form element.
The various features of novelty which characterize the invention are pointed out with more particularity in the claims annexed to and forming a part of this disclosure.
For a better understanding of the invention, its operating advantages and specific ob~ects attained by its use, reference should be had to the accompanying drawings and descriptive matter in which there are illustrated and described preferred embodiments o~ the invention.
I N THE DRAW I NGS
Figure 1 is a perspective illustration of a portion of a wall illustrating the use of one embodiment of construction form elements in accordance with the invention, portions being cut away;
Figure 2 is a perspective of a single construction form element of Figure l;
Figure 3 is a perspective illustration of a single construction form element modified for use to build a corner;
-- 211~ 8~
Figure 4 is a perspective illustration of a frame, used for incorporation in the construction form element to hold the two side panels together;
Figure 5 is a cut-away perspective of the element of Figure 2;
Figure 6 is an enlarged perspective view of portions of the construction form element of Figure 5;
Figure 7 is a section along line 7-7 of Figure 6;
Figure 8 is a upper plan view looking downwardly along the upper edge of one side panel of the element of Figure 5;
Figure 9 is an exploded sectional view showing the upper edge of one side of one element, and the under side of the next adjacent higher element prior to assembly, and, Figure 10 is a perspective illustration showing the manner of interlocking engagement achieved by fitting the interlocking formations of the two elements of Figure 9 together.
DESCRIPTION OF A SPECIFIC EMBODIMENT
Referring ~irst of all to Figure 1, it will be seen that the invention is illustrated in this example as a construction form element or block 10, open at each end, which elements may be built up to a form a wall structure indicated generally as W, and in which a pourable cast material M may be poured, to form the load bearing structure of the wall.
211~01 It will be appreciated that by this means the shape and definition of the wall may be first of all laid out by building up courses of blocks or elements 10, somewhat similar to the laying of cinder or concrete blocks. However it will of course be appreciated that there is no requirement for mortar between the construction form elements 10, which are held together, in a manner to be described below, without the use of mortar. As the courses of construction form elements 10 are laid, reinforcing rods (not shown) may be laid both horizontally and introduced vertically in well known manner.
Once the wall of construction form elements 10 has been erected to the necessary height, a pourable cast material M, `typically concrete, may be poured into the hollow interior of the construction form elements, and will flow downwardly filling the voids and spaces within the blocks or elements 10, and is then allowed to set. The poured material thus forms the final load bearing wall itself. The form elements remain in place as exterior and interior insulation, and also perform other functions described below.
It will thus be seen that by the use of such form elements, there is no longer any requirement for the erection of special form work, to contain the poured material, and the form elements 10 themselves both act as form work during the pouring and curing of the material and 21~01 also remain in place as thermal insulation once the poured material has cured.
Also shown in Figure 1 is the mesh screen material 12 attached on the outer side of wall W, and the weeping tile, or exterior drain T, which function as described below.
Turning to Figures 2, 5 and 6, the construction element 10 will be seen to comprise, in this illustrated embodiment, an inner ~ormwork panel 20 and an outer formwork panel 22.
In this embodiment, each of the panels are formed of thermoplastic material having thermal insulation properties.
In this particular case, the panels are formed of expanded polystyrene beads, being a form of thermoplastic which is well known in the art, and which has high R values, and which is easily moulded in relatively low cost shape moulds.
The inner panel 20 has an outer surface 24, and an inner surface 26 facing towards the interior of the block or element. The inner surface 26 is formed with a plurality of spaced apart keying formations 28 (Figure 5), the purpose of which will be described below.
The outer panel 22 has outer surface 30 facing outwardly from the element, and an inner surface 32 facing inwardly towards the interior of the element.
The outwardly facing surfaces 24 and 30 of panels 20 and 22 have groups of generally vertical liquid drainage channels 34 (Figure 5) formed therein. Drainage channels 34 are of regular dovetail shape along their length. Between ` 2111~1 the groups of channels 34, planar portions 36 are formed for purposes to be described.
The inwardly facing surface 32 of the outer panel 22 has keying formations 38 (Figure 9) formed thereon similar to the keying formations 28 on the inner panel 20, for purposes to be described below.
The panels 20 and 22 define, along their upper edges, male upstanding sealing formations 40. Sealing formations 40 are of generally continuous sinusoidal shape, along either side, when viewed in plan, giving the male formations a generally semi-cylindrical shape.
Along the lower edges of the inner and outer panels, female sealing recesses 44 are formed.
The recesses 44, when viewed upwardly in plan (Fig. 8), have a generally sinusoidal shape along their edges, corresponding to the sinusoidal semi-cylindrical shape of the male formations 40, and adapted to receive the male formations 40 in snug sealing engagement.
In this way the lower edges of upper construction elements 10 may be sealingly interengaged onto the upper edges of lower construction elements 10, and an effective liquid tight seal is formed.
Inner and outer panels 20 and 22 also define substantially vertical end edges. Along the end edges at one end of the panels, sealing ridges 46 (Figure 8) are formed and along the opposite end edges of such panels 21~18~1 sealing grooves 48 are formed adapted to mate with and frictionally receive the sealing ridges 46 and form a good liquid tight seal.
Along each of the end edges, additional sealing beads 50 are formed, so that when the ends of the blocks are squeezed together the beads will be deformed, providing a still further liguid tight seal.
In order to join the inner and outer panels, to form a hollow construction element 10 in accordance with the invention, a junction frame assembly indicated generally as 52 (see Figure 4) is provided, Frame 52 is shown in the partially cut away view of Figure 5 and the enlarged view of Figure 6. It will be seen to comprise transverse junction cross members indicated generally as 60 are located between respective inner and outer panels 20 and 22, and extend transversely therebetween at spaced intervals. In the illustrated embodiment, the block is 120 cm (or about 4 feet) long, and there are illustrated four such transverse junction members 60 equally spaced apart, by equal distances. However such transverse junctions 60 may also be used in some cases at each end of the block. The endmost junction cross members (as illustrated) are spaced from their respective ends by a distance equal to one half the spacing between members 60.
In this way, when the blocks are assembled in courses, the junction members 60 will all be equally spaced throughout the blocks or elements 10.
It will be appreciated however that this is merely one preferred arrangement, and that other arrangements and other dimensions of the block may be suitable in other circumstances.
The transverse junction members 60 comprise upper junction portions 62 and lower junction portions 64. Each of the junction portions 62-64 is of generally planar construction, and the two portions 62 and 64 are located in vertical planes which are spaced apart axially along the length of the block relative to one another and define spaces 66 therebetween.
Generally V-shaped recesses 68 are formed in upper junction portions 62 to act as guides for reinforcing rods (not shown) of steel or the like. A stiffening rib 70 (Figure 6) extends generally vertically on one side of the upper and lower portions 62-64 to act as reinforcement.
At each end of the portions 62-64, they are integrally formed with angled reinforcement portions 73, which join with generally Tee-shaped elongated upper and lower embedment formations 72- 74, extending along vertical axes offset from one another (Fig.7). The locations of the formations 72-74 is such that they will lie in a location which is essentially median to or offset slightly towards 2t~8~
the exterior of the thickness of each of the panels 20 and 22 respectively.
The embedment formations 72-74 are in turn united along either side of the block by means of buttresses 76, flanges 77 and generally horizontal bracing strips 78. The bracing strips 78 and the embedment formations 72-74 and flanges 77 and the upper and lower portions 62 and 64 are all moulded integrally of fire resistant thermoplastic material having a fire rating appropriate to the type of building for which the blocks are intended, and in any event superior to the fire rating of the panels 20 and 22. The manufacture of the blocks or construction form elements 10, will now be seen to be essentially a two-stage process.
In the first stage, the frames comprising the junction members together with their embedment formations and bracing strips are first of all typically injection moulded in a single mould out of an appropriate fire resistant plastic material. They are then placed in a larger mould, of the type designed for forming the two side panels 20 and 22 out of polystyrene bead plastic material. The polystyrene material is then filled into the mould, and the two side panels 20 and 22 are then formed around the embedment formations 72,74 and bracing strips 78 of the frames.
It will be understood that the moulds or forms for the two side panels would be so designed that the outer surfaces of the inner and outer side panel are provided with flat planar portions 36, already referred to. These planar portions 36 are located so as to register with the locations of the upper and lower embedment portions 72 and 74.
From Figures 5, 8, and 9 it will be seen that the upper embedment portions 72 are located so as to register centrally with the male sealing formations 40, and the lower embedment formations 74 are located so as to register with the female sealing recesses 44.
In order to hold the blocks together in courses, the upper embedment formations 72 are provided with locking detents 80 and the lower embedment formations 74 are provided with interlocking recesses 82. Stop bars 84 are formed on the upper embedment formations 72 adjacent the detents 80.
As best shown in Figures 9 and 10, when an upper block is placed in engagement with a lower block, the detent on the upper embedment formation 72 of the lower block is adapted to yield on one side, while the lower embedment formation 74 on the underside of the upper block is adapted to yield in the other direction, thereby permitting the detent 80 to pass into it's associated recess 82 and make a locking fit.
A further feature which is advantageous is the provision of indexing marks on the exterior of the block along the outside of each of the inner and outer panels.
211~01 These indexing marks comprise a series of larger domes 90, located centrally with respect to the planar portions 36, and smaller domes 92 located along the ridges defined between the channels 34.
The domes, both larger and smaller, are all located along a common axis.
This axis registers with the location of the bracing strips 78.
The larger domes 90 register with the buttresses 76 at the intersection between the bracing strips 78 and the upper and lower embedment formations 72-74.
Thus the larger domes indicate the point of maximum strength in this structure, to enable a contractor to insert fastenings in the most secure manner.
As shown in Figure 3 corner blocks 96 are formed, having two block portions formed together at 90 and defining a wall corner.
Corner blocks 96 would be moulded in two sizes, so as to accommodate the interlocking courses of the regular blocks, at each corner.
In operation, the frames are first of all moulded separately in an injection moulding plant. They may then be shipped to a block moulding plant, of which there may be several located at strategic points around a market area, all being served by one injection moulding plant moulding the frames.
The frames, in view of the offsetting between the upper and lower embedment formations (Figure 7) are nestable, and consequently may be shipped in a reasonably economical manner.
The block form elements 10 themselves when moulded and removed from the polystyrene moulds will of course be somewhat less economical to ship. Consequently it is desirable to have polystyrene moulding plants at various strategic locations for servicing a market area in an economical manner.
Once at the building site, the footings may be poured in the conventional way, and the construction form elements 10 will be laid up somewhat in the manner of large blocks, in courses (Figure 1). Corners may be formed using the corner blocks 96 of Figure 3. Reinforcing bars (not shown) will be inserted where necessary.
The castable material, i.e. concrete, will then be poured in the cavities between the inner and outer panels of each of the form elements, until they are filled up.
The hydrostatic pressure created by the height of the concrete within the wall will be such that it can readily be resisted and retained within the panels, by means of the transverse junction members and embedment formations of the frames.
Once the concrete is set and cured, a contractor may then wish to apply an exterior mesh filter screen S (Figure 1) to the outer surface of the outer panels, and also of course install the usual weeping tile.
The purpose of the mesh filter screen is to prevent backfill and earth from filling the channels 34 in the outer surfaces of the outwardly facing panels.
The backfill or earth is then filled in around the wall, if the wall is being installed as a basement wall for example and building can continue above grade, either using further blocks and concrete, or by other forms of construction.
As moisture penetrates the earth and fill, and reaches the outer surface of the outer panels, it will pass through the filter mesh screen S and into the channels 34 in the outer surface of the outer panels. In these channels the water can freely run down the exterior of the panels until it reaches the drainage tile and/or pipe T, at which point it may be carried off to a suitable drainage site away from the building.
This process ensures that the exterior surfaces of the panels will be kept as far as possible free from build up of ground water accumulated around the wall.
When finishing the interior wall, the contractor can simply apply drywall or other finish directly to the outer surface of the inner panels. If installing drywall for example, then he may wish to apply furring strips to the wall, in order to accommodate electrical services.
Alternatively, he may simply apply the drywall or other finish directly to the outer surface of the inner panel. In either case, the furring strips, or the drywall, or other material, may simply be attached to the outer surface of the inner panel, by using suitable fasteners passing through the high strength locations indicated by the domes 90 and 92.
Where cement parging, stucco, or plaster are used (inside or outside) the vertical dovetail drainage channels 34 enhance the anchoring of the cement parging, stucco, or other architectural coatings to the interior, or exterior, wall surface.
The foregoing is a description of a preferred embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appended claims.
The invention relates to an insulated construction form element, and in particular to a construction form element which is a hollow block member made of thermal insulation material, which is adapted to receive and form castable construction material such as concrete or the like therein, and to a frame for incorporation in such a form element.
BACKGROUND OF THE INVENTION
In conventional construction techniques, a wall made of castable concrete material is usually first of all defined by two panels of formwork erected side by side. A castable material such as concrete is then poured in the formwork and allowed to cure. In most cases the formwork is then removed. If it is desired, as in many cases, to apply thermal insulation to the wall, this is usually applied by attaching a layer of insulation material to the concrete, either on the inside of the wall, or in some cases on the outside of the wall, or in rare cases on both.
Naturally, within reason the more insulation that is applied, the better will be the insulation of the building. However it is well known that the application of insulation materials directly to a poured concrete surface can be a tiresome job. In some cases it is necessary to apply wooden studs, and then to support the insulation between the studs. In other cases, more complex systems exist for applying thermal insulation using strips of metal, . .
21118~1 through which fastenings can be applied, which then pass through the insulation material into the wall. However, it is apparent that whatever system is used for applying insulation, it involves the use of skilled trades people, and further time and materials, beyond that require to erect the formwork and to pour the wall itself.
Accordingly, it has been proposed in the past to provide hollow blocks made of thermal insulation material.
The blocks were then simply erected one above the other and secured in position. If required, reinforcing rods were placed in the hollows in the blocks. Concrete was then poured down through the hollows defined within the blocks, and was allowed to cure. In this way, the blocks actually defined the formwork enclosing the concrete, or other materials. Thus it was no longer necessary to first of all erect formwork and then remove it. In addition, since the blocks were formed of thermal insulation material, once the wall had cured, it was fully insulated both inside and out.
This system had numerous advantages, since it reduced substantially the time spent by skilled tradesmen.
However with certain of these proposals there have been unforseen problems. At first sight it appears that the solution to the problem is to mould a hollow open ended - block out of an integral structure of insulating material.
Typically the insulating material will be a mouldable thermoplastic having insulation properties. Expanded ` ~ 2111801 polystyrene bead materials are particularly suitable since they have high R values, and are relatively low in cost, and are easy to manufacture in a wide variety of moulded shapes.
It is of course apparent that in the design of any such block there will be inner and outer block walls, and the block walls must define a hollow space between them. It is also apparent that there must be some junction structure extending transversely through the block, at least at intervals, so as to hold the two block walls together. In the past, all of this structure, both the inner and the outer block walls, and the transverse junctions, have been moulded integrally of thermoplastic insulation materials.
This structure allows for relatively high speed production techni~ues, and minimizes costs. However, there is a serious drawback.
Once the blocks are erected, and concrete is poured through the hollow interior and allowed to cure, it is apparent that there will be openings extending completely through the concrete, at numerous points where the transverse junctions of the blocks extend through from one side to the other. If water leakage is a problem, it will be most likely to find it's way through the wall at these openings. A more serious disadvantage however is that these openings, being filled with thermoplastic insulation - material, constitute a fire hazard. Most of such thermoplastic insulation materials are inflammable to some 2111~01 extent or another. Conse~uently, the presence of these transverse junction portions of thermoplastic insulation materials, at spaced intervals in the wall, provide pathways through which fire can travel from one side of the wall to the other. Various attempts have been made to provide fire resistant insulation materials. However while fire resistant insulation materials do reduce the fire problem to some extent, they are not totally reliable, and the resulting fire hazard is simply not acceptable. Accordingly, in U.S. Letters Patent 4,731,968, inventor D. Obino, Issued March 22, 1988, it has been proposed to manufacture separate inner and outer wal 15 block walls, and then to join the separate inner and outer walls together by inserts of sheet metal such as steel. This does provide a solution to the problem of the fire path created through the wall by the previous form of blocks moulded with integral transverse walls of insulation material. However, the use of sheet metal itself creates further problems.
Obviously, the sheet metal components must be fabricated and stamped out separately from the manufacture of the plastic components. It is apparent that the use of a number of sheet metal transverse walls, extending from the inside to the outside of each block, provides a large number of heat transfer paths, through which heat will travel from one side of the wall to the other. This then tends to ` ~ 2~118~I
defeat the purpose of insulating the wall in the first place.
From the viewpoint of providing a short term solution to the problem, ie. to assist in erecting the blocks and to hold the blocks together while the concrete it setting, the sheet metal inserts, if they did not produce any of the other problems, would be acceptable, apart from the extra cost. However, it is apparent that from the viewpoint of a long term solution, the use of sheet metal transverse walls is unnecessary. Once the concrete or other poured material has cured and set hard, it is structurally rigid and will bear the load of the remainder of the structure on top of it.
From that time onwards, the inner and outer walls of each of the thermoplastic blocks are simply providing an insulation function and nothing more. In other words, once the poured material has set, the requirement for providing formwork, and containment of the flowable poured material with transverse metal junctions through the wall, is no longer present. All that is required is to provide the necessary degree of insulation.
For this insulation purpose, all that is reguired of the transverse junction portions of the blocks, is that they shall assist in holding the inner and outer walls of the blocks against the respective inner and outer surfaces of the cured wall. They no longer perform any structural , ` 2111801 function. Consequently, the use of sheet metal transverse junctions, once the wall has set hard, appears to be an unnecessary degree of "over-engineering".
Further disadvantages resulted from the light weight of the blocks. This factor caused the blocks to "float" in the concrete. Tying methods of some kind were required to overcome this.
BR I EF SUMMARY OF THE I NVENT I ON
With a view to overcoming these conflicting problems the invention comprises a hollow construction form element for use in the erection of construction components of poured flowable construction materials, said element acting as formwork for pouring and containing of said materials and thereafter acting as thermal insulation for said construction component, said element comprising, an inner formwork panel, an outer formwork panel, at least one of said inner and outer formwork panels being formed of rigid mouldable thermal insulation material, a plurality of thermoplastic non-flammable cross members extending between said inner and outer formwork panels at spaced intervals therealong and defining inner and outer ends, and top and bottom edges,inner axial junction strips extending between adjacent inner ends, and outer axial junction strips extending between adjacent outer ends, of said plurality of cross members, embedment formations formed on at least one of said inner and outer ends of said cross members, said ` 21~1~01 embedment formations being embedded in said at least one of said inner and outer formwork panels, and, hollow spaces deined between said inner and outer formwork wall panels, and hollow spaces being defined above and below said top and bottom edges of said cross members, whereby to permit flow of said pourable material therearound.
The invention further comprises such a hollow construction form element and including upper and lower edges, and end edges, defined by said inner and outer panels, and interlocking sealing members formed thereon, for sealing between adjacent said form elements.
The invention further comprises such a hollow construction form element and including keying formations on inner surfaces of said inner and outer formwork panels, for embedment in said cast material whereby to secure said inner and outer formwork panels to said cast material.
The invention further comprises such a hollow construction form element and including vertical liquid drain channels formed in the outer surfaces of said outer formwork panels.
The invention further comprises such a hollow construction form element and wherein said cross members define complimentary recesses and abutments shaped to fit therein whereby to form locking means, locking adjacent blocks above and below to one another.
` ~ 21il8Ql The invention further comprises such a construction form element wherein said cross members define upper and lower wall portions, located in respective upper and lower planes offset from one another.
The invention further comprises such a construction form element wherein said cross members define a spacing between said upper and lower wall portions.
The invention further comprises a wall formed of such construction form elements with said outer panels on the exterior of said wall, and water permeable mesh material secured to said outer panel on its exterior side, said mesh material being adapted to prevent passage of earth and fill into said vertical liquid drain channels in said outer panel whereby water permeating said earth and fill may pass through said mesh material and flow freely down said channels.
Further features of the invention include a corner form element having one end wall and an opening in a side wall so as to form interlocking corners.
The invention also features detents or domes at predetermined locations along the exterior surface of each inner and outer panel, to identify points of greatest strengths for the insertion of asteners.
Another aspect of the invention comprises a support frame for incorporation in a construction form element in accordance with the invention, the support frame having a 2~1~8~1 plurality of transverse junction portions, and a plurality of upright bracing struts, the bracing struts preferably having interlocking fastening means at their upper and lower ends for securing the courses of blocks together, and the frame further incorporating axial space apart parallel bracing members connecting said transverse junction members and forming the same into an integral frame for incorporation in a construction form element.
The various features of novelty which characterize the invention are pointed out with more particularity in the claims annexed to and forming a part of this disclosure.
For a better understanding of the invention, its operating advantages and specific ob~ects attained by its use, reference should be had to the accompanying drawings and descriptive matter in which there are illustrated and described preferred embodiments o~ the invention.
I N THE DRAW I NGS
Figure 1 is a perspective illustration of a portion of a wall illustrating the use of one embodiment of construction form elements in accordance with the invention, portions being cut away;
Figure 2 is a perspective of a single construction form element of Figure l;
Figure 3 is a perspective illustration of a single construction form element modified for use to build a corner;
-- 211~ 8~
Figure 4 is a perspective illustration of a frame, used for incorporation in the construction form element to hold the two side panels together;
Figure 5 is a cut-away perspective of the element of Figure 2;
Figure 6 is an enlarged perspective view of portions of the construction form element of Figure 5;
Figure 7 is a section along line 7-7 of Figure 6;
Figure 8 is a upper plan view looking downwardly along the upper edge of one side panel of the element of Figure 5;
Figure 9 is an exploded sectional view showing the upper edge of one side of one element, and the under side of the next adjacent higher element prior to assembly, and, Figure 10 is a perspective illustration showing the manner of interlocking engagement achieved by fitting the interlocking formations of the two elements of Figure 9 together.
DESCRIPTION OF A SPECIFIC EMBODIMENT
Referring ~irst of all to Figure 1, it will be seen that the invention is illustrated in this example as a construction form element or block 10, open at each end, which elements may be built up to a form a wall structure indicated generally as W, and in which a pourable cast material M may be poured, to form the load bearing structure of the wall.
211~01 It will be appreciated that by this means the shape and definition of the wall may be first of all laid out by building up courses of blocks or elements 10, somewhat similar to the laying of cinder or concrete blocks. However it will of course be appreciated that there is no requirement for mortar between the construction form elements 10, which are held together, in a manner to be described below, without the use of mortar. As the courses of construction form elements 10 are laid, reinforcing rods (not shown) may be laid both horizontally and introduced vertically in well known manner.
Once the wall of construction form elements 10 has been erected to the necessary height, a pourable cast material M, `typically concrete, may be poured into the hollow interior of the construction form elements, and will flow downwardly filling the voids and spaces within the blocks or elements 10, and is then allowed to set. The poured material thus forms the final load bearing wall itself. The form elements remain in place as exterior and interior insulation, and also perform other functions described below.
It will thus be seen that by the use of such form elements, there is no longer any requirement for the erection of special form work, to contain the poured material, and the form elements 10 themselves both act as form work during the pouring and curing of the material and 21~01 also remain in place as thermal insulation once the poured material has cured.
Also shown in Figure 1 is the mesh screen material 12 attached on the outer side of wall W, and the weeping tile, or exterior drain T, which function as described below.
Turning to Figures 2, 5 and 6, the construction element 10 will be seen to comprise, in this illustrated embodiment, an inner ~ormwork panel 20 and an outer formwork panel 22.
In this embodiment, each of the panels are formed of thermoplastic material having thermal insulation properties.
In this particular case, the panels are formed of expanded polystyrene beads, being a form of thermoplastic which is well known in the art, and which has high R values, and which is easily moulded in relatively low cost shape moulds.
The inner panel 20 has an outer surface 24, and an inner surface 26 facing towards the interior of the block or element. The inner surface 26 is formed with a plurality of spaced apart keying formations 28 (Figure 5), the purpose of which will be described below.
The outer panel 22 has outer surface 30 facing outwardly from the element, and an inner surface 32 facing inwardly towards the interior of the element.
The outwardly facing surfaces 24 and 30 of panels 20 and 22 have groups of generally vertical liquid drainage channels 34 (Figure 5) formed therein. Drainage channels 34 are of regular dovetail shape along their length. Between ` 2111~1 the groups of channels 34, planar portions 36 are formed for purposes to be described.
The inwardly facing surface 32 of the outer panel 22 has keying formations 38 (Figure 9) formed thereon similar to the keying formations 28 on the inner panel 20, for purposes to be described below.
The panels 20 and 22 define, along their upper edges, male upstanding sealing formations 40. Sealing formations 40 are of generally continuous sinusoidal shape, along either side, when viewed in plan, giving the male formations a generally semi-cylindrical shape.
Along the lower edges of the inner and outer panels, female sealing recesses 44 are formed.
The recesses 44, when viewed upwardly in plan (Fig. 8), have a generally sinusoidal shape along their edges, corresponding to the sinusoidal semi-cylindrical shape of the male formations 40, and adapted to receive the male formations 40 in snug sealing engagement.
In this way the lower edges of upper construction elements 10 may be sealingly interengaged onto the upper edges of lower construction elements 10, and an effective liquid tight seal is formed.
Inner and outer panels 20 and 22 also define substantially vertical end edges. Along the end edges at one end of the panels, sealing ridges 46 (Figure 8) are formed and along the opposite end edges of such panels 21~18~1 sealing grooves 48 are formed adapted to mate with and frictionally receive the sealing ridges 46 and form a good liquid tight seal.
Along each of the end edges, additional sealing beads 50 are formed, so that when the ends of the blocks are squeezed together the beads will be deformed, providing a still further liguid tight seal.
In order to join the inner and outer panels, to form a hollow construction element 10 in accordance with the invention, a junction frame assembly indicated generally as 52 (see Figure 4) is provided, Frame 52 is shown in the partially cut away view of Figure 5 and the enlarged view of Figure 6. It will be seen to comprise transverse junction cross members indicated generally as 60 are located between respective inner and outer panels 20 and 22, and extend transversely therebetween at spaced intervals. In the illustrated embodiment, the block is 120 cm (or about 4 feet) long, and there are illustrated four such transverse junction members 60 equally spaced apart, by equal distances. However such transverse junctions 60 may also be used in some cases at each end of the block. The endmost junction cross members (as illustrated) are spaced from their respective ends by a distance equal to one half the spacing between members 60.
In this way, when the blocks are assembled in courses, the junction members 60 will all be equally spaced throughout the blocks or elements 10.
It will be appreciated however that this is merely one preferred arrangement, and that other arrangements and other dimensions of the block may be suitable in other circumstances.
The transverse junction members 60 comprise upper junction portions 62 and lower junction portions 64. Each of the junction portions 62-64 is of generally planar construction, and the two portions 62 and 64 are located in vertical planes which are spaced apart axially along the length of the block relative to one another and define spaces 66 therebetween.
Generally V-shaped recesses 68 are formed in upper junction portions 62 to act as guides for reinforcing rods (not shown) of steel or the like. A stiffening rib 70 (Figure 6) extends generally vertically on one side of the upper and lower portions 62-64 to act as reinforcement.
At each end of the portions 62-64, they are integrally formed with angled reinforcement portions 73, which join with generally Tee-shaped elongated upper and lower embedment formations 72- 74, extending along vertical axes offset from one another (Fig.7). The locations of the formations 72-74 is such that they will lie in a location which is essentially median to or offset slightly towards 2t~8~
the exterior of the thickness of each of the panels 20 and 22 respectively.
The embedment formations 72-74 are in turn united along either side of the block by means of buttresses 76, flanges 77 and generally horizontal bracing strips 78. The bracing strips 78 and the embedment formations 72-74 and flanges 77 and the upper and lower portions 62 and 64 are all moulded integrally of fire resistant thermoplastic material having a fire rating appropriate to the type of building for which the blocks are intended, and in any event superior to the fire rating of the panels 20 and 22. The manufacture of the blocks or construction form elements 10, will now be seen to be essentially a two-stage process.
In the first stage, the frames comprising the junction members together with their embedment formations and bracing strips are first of all typically injection moulded in a single mould out of an appropriate fire resistant plastic material. They are then placed in a larger mould, of the type designed for forming the two side panels 20 and 22 out of polystyrene bead plastic material. The polystyrene material is then filled into the mould, and the two side panels 20 and 22 are then formed around the embedment formations 72,74 and bracing strips 78 of the frames.
It will be understood that the moulds or forms for the two side panels would be so designed that the outer surfaces of the inner and outer side panel are provided with flat planar portions 36, already referred to. These planar portions 36 are located so as to register with the locations of the upper and lower embedment portions 72 and 74.
From Figures 5, 8, and 9 it will be seen that the upper embedment portions 72 are located so as to register centrally with the male sealing formations 40, and the lower embedment formations 74 are located so as to register with the female sealing recesses 44.
In order to hold the blocks together in courses, the upper embedment formations 72 are provided with locking detents 80 and the lower embedment formations 74 are provided with interlocking recesses 82. Stop bars 84 are formed on the upper embedment formations 72 adjacent the detents 80.
As best shown in Figures 9 and 10, when an upper block is placed in engagement with a lower block, the detent on the upper embedment formation 72 of the lower block is adapted to yield on one side, while the lower embedment formation 74 on the underside of the upper block is adapted to yield in the other direction, thereby permitting the detent 80 to pass into it's associated recess 82 and make a locking fit.
A further feature which is advantageous is the provision of indexing marks on the exterior of the block along the outside of each of the inner and outer panels.
211~01 These indexing marks comprise a series of larger domes 90, located centrally with respect to the planar portions 36, and smaller domes 92 located along the ridges defined between the channels 34.
The domes, both larger and smaller, are all located along a common axis.
This axis registers with the location of the bracing strips 78.
The larger domes 90 register with the buttresses 76 at the intersection between the bracing strips 78 and the upper and lower embedment formations 72-74.
Thus the larger domes indicate the point of maximum strength in this structure, to enable a contractor to insert fastenings in the most secure manner.
As shown in Figure 3 corner blocks 96 are formed, having two block portions formed together at 90 and defining a wall corner.
Corner blocks 96 would be moulded in two sizes, so as to accommodate the interlocking courses of the regular blocks, at each corner.
In operation, the frames are first of all moulded separately in an injection moulding plant. They may then be shipped to a block moulding plant, of which there may be several located at strategic points around a market area, all being served by one injection moulding plant moulding the frames.
The frames, in view of the offsetting between the upper and lower embedment formations (Figure 7) are nestable, and consequently may be shipped in a reasonably economical manner.
The block form elements 10 themselves when moulded and removed from the polystyrene moulds will of course be somewhat less economical to ship. Consequently it is desirable to have polystyrene moulding plants at various strategic locations for servicing a market area in an economical manner.
Once at the building site, the footings may be poured in the conventional way, and the construction form elements 10 will be laid up somewhat in the manner of large blocks, in courses (Figure 1). Corners may be formed using the corner blocks 96 of Figure 3. Reinforcing bars (not shown) will be inserted where necessary.
The castable material, i.e. concrete, will then be poured in the cavities between the inner and outer panels of each of the form elements, until they are filled up.
The hydrostatic pressure created by the height of the concrete within the wall will be such that it can readily be resisted and retained within the panels, by means of the transverse junction members and embedment formations of the frames.
Once the concrete is set and cured, a contractor may then wish to apply an exterior mesh filter screen S (Figure 1) to the outer surface of the outer panels, and also of course install the usual weeping tile.
The purpose of the mesh filter screen is to prevent backfill and earth from filling the channels 34 in the outer surfaces of the outwardly facing panels.
The backfill or earth is then filled in around the wall, if the wall is being installed as a basement wall for example and building can continue above grade, either using further blocks and concrete, or by other forms of construction.
As moisture penetrates the earth and fill, and reaches the outer surface of the outer panels, it will pass through the filter mesh screen S and into the channels 34 in the outer surface of the outer panels. In these channels the water can freely run down the exterior of the panels until it reaches the drainage tile and/or pipe T, at which point it may be carried off to a suitable drainage site away from the building.
This process ensures that the exterior surfaces of the panels will be kept as far as possible free from build up of ground water accumulated around the wall.
When finishing the interior wall, the contractor can simply apply drywall or other finish directly to the outer surface of the inner panels. If installing drywall for example, then he may wish to apply furring strips to the wall, in order to accommodate electrical services.
Alternatively, he may simply apply the drywall or other finish directly to the outer surface of the inner panel. In either case, the furring strips, or the drywall, or other material, may simply be attached to the outer surface of the inner panel, by using suitable fasteners passing through the high strength locations indicated by the domes 90 and 92.
Where cement parging, stucco, or plaster are used (inside or outside) the vertical dovetail drainage channels 34 enhance the anchoring of the cement parging, stucco, or other architectural coatings to the interior, or exterior, wall surface.
The foregoing is a description of a preferred embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appended claims.
Claims (9)
1. A hollow construction form element for use in the erection of construction components of poured flowable construction materials, said element acting as formwork for pouring and containing of said materials during curing and thereafter acting as thermal insulation for said construction component, said element comprising;
an inner formwork panel;
an outer formwork panel;
at least one of said inner and outer formwork panels being formed of rigid mouldable thermal insulation material;
a junction frame assembly having a plurality of thermoplastic fire resistant cross members extending between said inner and outer formwork panels at spaced intervals therealong, and bracing strips extending between adjacent ends of said plurality of cross members;
embedment formations formed on said inner and outer ends of said cross members, said embedment formations being embedded in said inner and outer formwork panels, and, hollow spaces defined between said inner and outer formwork panels, and hollow spaces being defined above and below said cross members, whereby to permit flow of said pourable material.
an inner formwork panel;
an outer formwork panel;
at least one of said inner and outer formwork panels being formed of rigid mouldable thermal insulation material;
a junction frame assembly having a plurality of thermoplastic fire resistant cross members extending between said inner and outer formwork panels at spaced intervals therealong, and bracing strips extending between adjacent ends of said plurality of cross members;
embedment formations formed on said inner and outer ends of said cross members, said embedment formations being embedded in said inner and outer formwork panels, and, hollow spaces defined between said inner and outer formwork panels, and hollow spaces being defined above and below said cross members, whereby to permit flow of said pourable material.
2. A hollow construction form element as claimed in Claim 1 and including upper and lower edges, and end edges, defined by said inner and outer panels, and interlocking sealing members, formed thereon, for sealing between adjacent said form elements.
3. A hollow construction form element as claimed in Claim 2 and including keying formations on inner surfaces of said inner and outer formwork panels, for embedment in said cast material whereby to secure said inner and outer formwork panels to said cast material.
4. A hollow construction form element as claimed in Claim 2 and including liquid drain channels formed in the outer surface of said outer formwork panels.
5. A hollow construction form element as claimed in Claim 2 and wherein said sealing members at said end edges further include complimentary means, adjacent blocks to one above the other.
6. A hollow construction form element as claimed in Claim 1 wherein said cross members define upper and lower wall portions, located in respective upper and lower planes offset from one another.
7. A hollow construction form element as claimed in Claim 6 wherein said cross members define a spacing between said upper and lower wall portions.
8. A wall formed of hollow construction form elements having inner and outer panels defining a hollow interior, and a castable material filling the same, and said form elements comprising;
liquid drain channels in said outer panels on the exterior of said wall, and, water permeable mesh material secured to said outer panel on its exterior side said material being adapted to prevent passage of earth and fill into said liquid drain channels in said outer panel whereby water permeating said earth and fill may pass through said mesh material and flow freely down said drain channels.
liquid drain channels in said outer panels on the exterior of said wall, and, water permeable mesh material secured to said outer panel on its exterior side said material being adapted to prevent passage of earth and fill into said liquid drain channels in said outer panel whereby water permeating said earth and fill may pass through said mesh material and flow freely down said drain channels.
9. A frame for incorporation in a hollow construction form element for use in the erection of construction components of poured flowable construction materials, said element acting as formwork for pouring and containing of said materials during curing and thereafter acting as a thermal insulation for said construction component, said element having an inner formwork panel, and an outer formwork panel, and said frame comprising;
a plurality of thermoplastic fire resistant cross members adapted to extend between said inner and outer formwork panels at spaced intervals therealong and defining inner and outer ends, and top and bottom edges;
inner and outer axial bracing strips extending between adjacent inner and outer ends of said plurality of cross members;
embedment formations formed on said inner and outer ends of said cross members, said embedment formations being adapted to be embedded in said inner and outer formwork panels, and, spaces defined above and below said top and bottom edges of said cross members, whereby to permit flow of said pourable material therearound.
a plurality of thermoplastic fire resistant cross members adapted to extend between said inner and outer formwork panels at spaced intervals therealong and defining inner and outer ends, and top and bottom edges;
inner and outer axial bracing strips extending between adjacent inner and outer ends of said plurality of cross members;
embedment formations formed on said inner and outer ends of said cross members, said embedment formations being adapted to be embedded in said inner and outer formwork panels, and, spaces defined above and below said top and bottom edges of said cross members, whereby to permit flow of said pourable material therearound.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2111801 CA2111801A1 (en) | 1993-12-17 | 1993-12-17 | Insulated construction form element and reinforcement therefor, and wall construction |
| AU12703/95A AU1270395A (en) | 1993-12-17 | 1994-12-16 | Insulated construction form element, and reinforcement therefor, and wall construction |
| PCT/CA1994/000698 WO1995016835A1 (en) | 1993-12-17 | 1994-12-16 | Insulated construction form element, and reinforcement therefor, and wall construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2111801 CA2111801A1 (en) | 1993-12-17 | 1993-12-17 | Insulated construction form element and reinforcement therefor, and wall construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2111801A1 true CA2111801A1 (en) | 1995-06-18 |
Family
ID=4152642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2111801 Abandoned CA2111801A1 (en) | 1993-12-17 | 1993-12-17 | Insulated construction form element and reinforcement therefor, and wall construction |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU1270395A (en) |
| CA (1) | CA2111801A1 (en) |
| WO (1) | WO1995016835A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113706A (en) * | 2015-09-01 | 2015-12-02 | 肖宁海 | Reinforced truss gypsum plate with insulation layer, novel dismantling-free formwork and their construction method |
| WO2019095048A1 (en) * | 2017-11-14 | 2019-05-23 | Piccone Holdings Ltd. | Stay-in-place ready-to-stucco formwork system |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2735803B1 (en) * | 1995-06-21 | 1997-08-14 | Euromac 2 Sarl | SELF-SELF-INSULATING BUILDING BLOCK |
| FR2738856B1 (en) * | 1995-09-19 | 1997-10-31 | Viannay Quideau Marine | DEVICE FOR ASSEMBLING CONSECUTIVE EQUAL VERTICAL U-BANKS USED IN LIGHT LOST FORMWORK |
| EP1584752A1 (en) * | 2004-04-07 | 2005-10-12 | Knauf Dämmstoffe GmbH | Insulating board with drainage surface structure |
| US8997420B2 (en) | 2004-11-29 | 2015-04-07 | Victor Amend | Reinforced insulated forms for constructing concrete walls and floors |
| CN1325735C (en) * | 2006-01-20 | 2007-07-11 | 翟秀英 | Energy-saving wall module for building |
| WO2011134008A1 (en) * | 2010-04-30 | 2011-11-03 | Ambe Engineering Pty Ltd | System for forming an insulated concrete thermal mass wall |
| PL3084095T3 (en) | 2013-12-17 | 2021-10-25 | Benjamin BAADER | Insulated concrete panel form and method of making same |
| CA3069028A1 (en) * | 2020-01-21 | 2021-07-21 | Benjamin BAADER | An adjustable apparatus, system and method for constructing insulated concrete forms |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2552472B2 (en) * | 1983-02-08 | 1985-11-08 | Ott Renaud | CONSTRUCTIVE SYSTEM USING LOST FORMS, ESPECIALLY INSULATING AND WEAPONS |
| US4698947A (en) * | 1986-11-13 | 1987-10-13 | Mckay Harry | Concrete wall form tie system |
-
1993
- 1993-12-17 CA CA 2111801 patent/CA2111801A1/en not_active Abandoned
-
1994
- 1994-12-16 AU AU12703/95A patent/AU1270395A/en not_active Abandoned
- 1994-12-16 WO PCT/CA1994/000698 patent/WO1995016835A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113706A (en) * | 2015-09-01 | 2015-12-02 | 肖宁海 | Reinforced truss gypsum plate with insulation layer, novel dismantling-free formwork and their construction method |
| WO2019095048A1 (en) * | 2017-11-14 | 2019-05-23 | Piccone Holdings Ltd. | Stay-in-place ready-to-stucco formwork system |
| US11591794B2 (en) | 2017-11-14 | 2023-02-28 | Piccone Holdings Ltd. | Stay-in-place ready-to-stucco formwork system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1995016835A1 (en) | 1995-06-22 |
| AU1270395A (en) | 1995-07-03 |
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