EP0286370A2 - Panneau de ciment renforcé - Google Patents
Panneau de ciment renforcé Download PDFInfo
- Publication number
- EP0286370A2 EP0286370A2 EP88303047A EP88303047A EP0286370A2 EP 0286370 A2 EP0286370 A2 EP 0286370A2 EP 88303047 A EP88303047 A EP 88303047A EP 88303047 A EP88303047 A EP 88303047A EP 0286370 A2 EP0286370 A2 EP 0286370A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- matting
- cementitious
- building wall
- building
- 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.)
- Withdrawn
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- 239000011800 void material Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 abstract description 16
- 239000010410 layer Substances 0.000 description 60
- 239000002585 base Substances 0.000 description 29
- 239000002657 fibrous material Substances 0.000 description 12
- 229920006328 Styrofoam Polymers 0.000 description 10
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- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
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- 229910000831 Steel Inorganic materials 0.000 description 3
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- 230000001939 inductive effect Effects 0.000 description 3
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- 239000004570 mortar (masonry) Substances 0.000 description 3
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- 229920000058 polyacrylate Polymers 0.000 description 3
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- 239000004645 polyester resin Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
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- 239000002861 polymer material Substances 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 229920005789 ACRONAL® acrylic binder Polymers 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical class CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
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- 239000004744 fabric Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- QNVRIHYSUZMSGM-UHFFFAOYSA-N hexan-2-ol Chemical compound CCCCC(C)O QNVRIHYSUZMSGM-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 150000003151 propanoic acid esters Chemical class 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- -1 styrol acrylates Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- 239000000057 synthetic resin Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
- E04F13/04—Bases for plaster
- E04F13/047—Plaster carrying meshes
-
- 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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
- E04F13/04—Bases for plaster
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
- E04F13/04—Bases for plaster
- E04F13/042—Joint tapes
Definitions
- This invention relates to cementitious building materials which are reinforced to provide enhanced impact resistance. Such materials are particularly useful in building wall covering systems.
- Wall covering systems for interior and exterior of building walls using cement type coatings are popular in the building industry because of the relatively inexpensive form of construction and covering of large expanse of walls. Such coverings may be applied to refurbish existing building exteriors and interior, or applied to new building construction.
- Horbach, United States patent 3,389,518, provides a continuous finish for a building exterior.
- a form of cellular insulation is adhesively applied to building exterior.
- a continuous layer of cementitious material is applied over the cellular insulation and reinforcement in the form of glass fibre fabric or reinforcing fibres is incorporated in the cementitious material.
- a finish coat of synthetic materials, such as propionic acid ester or other binder materials, is applied to the cementitious layer.
- the finish coat may include a mineral aggregate for decorative purposes.
- the purpose of this structure is to prevent crack propagation in the building wall being transmitted to the newly completed surface, thereby preventing crack formation in the new finish.
- Horbach does not recommend the use of steel plates on the face of the insulation because of heat conductivity and their exceptional weight. The steel plates would have to be firmly secured to the building exterior and cannot compensate for temperature variations that can form cracks in the surface of the finish material applied to the insulation.
- a comparable system involving the use of Styrofoam panels is disclosed in Canadian patent 1,148,324.
- the Styrofoam panels having grooves on the interior and the exterior are applied to a building wall using fasteners.
- the base coat of plaster or mortar is applied over the Styrofoam panels where the cementitious material is received in the outer grooves of the Styrofoam panels to ensure that the hardened base coat material is firmly affixed to the Styrofoam material.
- the Styrofoam material moves due to expansion and contraction caused by temperature extremes, cracking in the base coat can occur.
- Burrows, United States patent 4,044,520 discloses a building panel system which is a modular unit glued to the building exterior.
- Each building panel as preformed consists of a foamed resin insulation layer over which a base coat and finish coat are applied.
- a polymer fortified concrete base coat may be used.
- Polymer fortification of the cement may be provided by an acrylic polymer together with a defoaming agent.
- the outer facing layer may be of a synthetic binder material, such as an acrylic polymer optionally used in combination with concrete. Aggregate may be added to the binder material to enhance the appearance of the building panels.
- Rubenstein United States patent 2,850,890, discloses a precast building block having applied to an exterior surface thereof a polyester resin impregnated with fiberglass or like types of fibre reinforcing materials.
- Such fibres may be provided in the form of woven or unwoven mats, fibrous stranded materials or rope.
- the fibrous material is impregnated with polyester resins so as to adhere the fibrous material to the face of a concrete block and to essentially cover the thickness of the fibrous material.
- a finishing layer may be adhered to the layer of fibrous materials.
- the preferred type of fibrous material, as disclosed in this patent, is of the "Fiberglas" (trademark) type which would be in the form of a mat.
- This type of fibrous material is fairly dense and hence does not allow the resins to fully impregnate the layer of fibrous material resulting in poor adhesion of the fibrous material to the cement block. After the finish coat is applied to the fibrous material, it is possible over time that the polyester resins release their holding power on the cement blocks, thereby causing the surface finish to blister and fall away from the cement blocks.
- a cementitious building wall covering system comprises a wall support structure, a layer of insulative material and a layer of matting overlying the insulated material.
- the insulated material and matting are applied to the wall support by spaced apart mechanical fasteners.
- the matting comprises a bulky layer of open construction formed by randomly directed interconnected flexible filaments.
- a continuous layer of hardened cementitious material fills and essentially covers the open construction of the matting.
- a hardened finish coat is adhered to the layer of cementitious material to complete the wall surface.
- an insulative panel for use in applying a building wall covering system to a wall support structure comprises a layer of insulation, a layer of matting having a bulky open construction formed by randomly directed, interconnected flexible filaments and means for securing a layer of matting to the insulative panel.
- the layer of matting is essentially the same size as the insulative panel and optionally may be offset relative to the face of the panel to provide for overlap of the matting with the joint between insulative panels when applied to a building wall.
- a method for applying a cementitious building wall covering system to a wall support structure comprises attaching with mechanical fasteners a layer of insulative material with overlying layer of matting to the wall structure.
- the layer of matting is of bulky open construction formed by randomly directed interconnected flexible filaments.
- a layer of cementitious material is applied to the matting to fill the open construction with the cover the layer of matting with the layer of cementitious material.
- the layer of cementitious material is allowed to harden.
- a finish coat is applied to the layer of cementitious material to complete the wall covering system.
- a reinforced cementitious building structure having increased impact strength comprises in combination a hardened layer of cementitious material having embedded therein a bulky layer of matting.
- the matting has an open construction formed by randomly directed interconnected flexible filaments.
- FIG. 1 A building wall covering system is shown in Figure 1 wherein the building wall covering system 10 is applied to a building wall support structure generally designated 12.
- the building wall system 10 comprises a layer of insulative material 14 with an overlying layer of matting 16.
- a layer of cementitious material 18 is applied to the matting to fill voids therein and cover the matting.
- a finish coat 20 is then applied to the hardened layer of cementitious material.
- the building wall support structure may comprise a variety of structures such as brick, concrete or steel frame.
- the wall consists of concrete blocks 22 secured to one another by mortar 24 in accordance with standard building practice.
- a layer of insulative material 14 is applied to the building wall support surface 26.
- surface 26 may be either the interior or exterior surface of the building wall support structure, although it is appreciated that the wall covering system according to this invention is particularly adapted for exterior surface application to building walls. It is also appreciated that the building wall structure 12 may be an existing wall system which needs to be refurbished and hence covered by the system according to this invention to provide an improved surface finish effected by layer 20. Interior wall systems may be of residential or industrial type. For example, in industry the insulated system is particularly useful in refrigeration rooms.
- the insulative layer 14 may consist of individual panels, such as 28, 30, etc.
- the panels may be of a representative size such as two feet by four feet which is fairly standard in the construction industry and are of a size which are readily manageable and packaged. It is appreciated, however, that the insulative material may come in large sheets or may be unrolled and applied to the building surface 26.
- the matting 16 Overlying the panels is the matting 16 which may be of a dimension different from the panels and may also be of larger lengths or removed from a roll of material and applied to the exterior surface of the insulated panels. According to a preferred aspect of the invention, the matting 16 is in sections, each section being approximately the same size as the panel and overlying the panel.
- the matting 16 may be secured to the face 32 of panel 28 by strips of adhesive 34.
- the section of matting 16 may be secured to the panel 28 by a suitable stitching 36.
- the section of matting 38, as applied to the panel 28 is of essentially the same width and height as the insulative panel 28 and is coterminus with the edges of the insulative panel 28.
- each mechanical fastener 40 consists of a shank portion 42 which penetrates and extends through the matting 38 and the corresponding insulative panel 28 and is secured in the building wall block 22 by penetrating the block.
- the fastener shank 42 may be of the common type of concrete nail which is suitable for use in driving into concrete blocks and forming a secure grip on the block. It is appreciated though that many other types of fasteners may be used such as screw and anchor systems, self-tapping systems which are screwed into metal wall structures and the like which would serve the purpose of holding at its head portion 44 an enlarge circular rigid plate 46.
- the enlarged circular plate 46 includes a plurality of apertures 48. The apertures are adjacent the matting 38.
- the fastener 42 is only driven in so far as to slightly compress the matting 38 and not overly compress the insulative layer 28.
- the matting sections 38 may be offset relative to the respective insulative panels 28and 30.
- the portion 38a of the matting on panel 28 overlaps the joint between the faces 28a and 30a.
- the second section 38, as secured to panel 30, then forms a joint of the matting at portions 38a and 38b.
- the matting always overlaps and forms a more secure interconnection for the joint between the individual panels.
- the layer of matting 16 and the section thereof 38 as shown in Figure 2 is of bulky open construction formed by randomly directed interconnected flexible filaments.
- a preferred source of such matting is that available from America Enka Company as sold under the trade mark ENKAMAT.
- This particular three dimensional matting is made from Nylon (trademark) monofilaments fused at their intersections.
- the material for matting may be of other types of suitable synthetic materials which may be similarly constructed to form the bulky matting. Normally, such material is used in sodding installations to control soil erosion by providing a medium in which grass roots may grow. It has been surprisingly found, however, that in the construction of building wall systems the covering and filling of the voids in such bulky matting with a cementitious material provides a considerably improved building facing.
- the matting consists of individual flexible monofilaments which do not have any preconceived orientation and are interconnected at various intersections to provide a mat structure having a distinct length, width and thickness dimension.
- the majority of the matting is void.
- such matting may be up to 10% or thereabouts solid, the remainder being void.
- such monofilaments may be formed of Nylon and in particular Nylon 6.
- Carbon black may be included in the Nylon monofilament to provide weather resistance in the Nylon.
- the preferred matting has the following physical characteristics.
- the insulative panel over which the matting lies may be of a variety of materials commonly used in the building trade.
- the panels may be of fibrous insulation batts developed from an assorted form of natural and synthetic fibres.
- the fibrous batts may be of Fiberglas (trademark) insulation in the form of a fine fibered, shock free insulation board which is semi-rigid and of controlled density and thickness which is bonded by a thermosetting resin to give it the semi-rigid form of structure for application to the building exterior.
- the thickness of the insulation batts is compressed and may range from one to four inches depending upon the application to which the insulative material is put.
- the Fiberglas insulation is inherently fire safe with a ULC flame spread rating of 15.
- the insulation material is moisture resistance in that moisture will not affect the glass fibres.
- the Fiberglas insulation batts are water permeable to allow the diffusion of moisture in either direction through the insulation layer.
- fibrous types batts may be used, such as mineral fibrous material and naturally occurring fibrous material which when compacted provide a surface to which the matting is connected.
- the insulating layer may be formed of expanded polymeric materials such as Styrofoam (trademark) sheets. These foam sheets are normally of relatively flexible material and would normally have the matting secured to the face thereof by suitable adhesive.
- the adhesive should be of relatively flexible composition to accommodate expansion and contraction in not only the cementitious material applied to the matting, but also in the insulative material.
- the cementitious material applied to the matting and covering the insulative layer is normally of vapor permeable material to allow diffusion of vapor in both directions through the building exterior.
- the cementitious material may be formed of a Portland Cement with filler and aggregate.
- the cement material may be modified with a synthetic material to improve its binding characteristics and provide a more resilient layer.
- fibres may be added to the cementitious layer.
- "AR" (trademark) glass fibres may be added to the cementitious layer.
- the fibres are chopped strand glass fibres sold by Owens-Corning Fiberglas Corp. of Toledo, Ohio. The glass fibre strengthens the Portland Cement where such fibres are inherently alkali resistance.
- the fibres can add considerably to the structural strength of the cementitious coating and provide a degree of flexibility in the base coating when hardened to avoid development of hairline cracks in the coating due to any movement between the wall covering system and the wall supporting structure.
- the various desired properties of fibre reinforced concretes are disclosed in "State of the Art Report on Fibre Reinforcing Concrete", ACI Journal/November 1983.
- fibre reinforced cementitious coatings are available.
- the surface bonding cement distributed under the trademark "SHER WALL” by W. R. Bonsal Company of Lyleville, N.C.; "GEMITE” (trademark) fibre reinforcing cement manufactured and sold by Gemite Limited of Ontario, Canada; "FIBERWALL” manufactured and sold by Construmat Inc. of Ontario, Canada are all acceptable, usable forms of fibre reinforced cementitious materials.
- the "FIBERWALL” sold by Construmat is a synthetic modified cementitious material which includes an acrylic polymer binder material to improve the adhesion characteristic and the ability of the hardened base coat deflects to a certain degree in accommodating relative movement with respect to building wall and not inducing cracks in the finished coat.
- the vapor permeable finish coat may include various types of paints or synthetic layer.
- the finish coat 20 includes a synthetic binder with pebbles, aggregates and the like to present an attractive appearance as desired by the user and consumer.
- the synthetic binder may be an acrylic-styrene polymer composition having elastic properties in combination with the filler materials.
- the acrylic-styrene polymer material may be obtained from many sources such as that sold under the trademark "ACRONAL" 290D by BASF of West Germany.
- the acrylic-styrene polymer material is mixed with solvents, such as aromatics containing white spirit, butyldigol, butylethanol, butyldigol acetate, pine oils or the blends thereof with alcohols such as methanol, ethanol, or isopropanol to improve the freeze/thaw stability.
- solvents such as aromatics containing white spirit, butyldigol, butylethanol, butyldigol acetate, pine oils or the blends thereof with alcohols such as methanol, ethanol, or isopropanol to improve the freeze/thaw stability.
- Butyldigol, ethylene glycol and propylene glycol may be added to prevent the finishes from drying too rapidly.
- Plasticizers such as dioctyl, phthalate may be added to the finish coat to increase its resiliency.
- the fillers used with this mixture include aggregate usually ranging in grain size from 1 mm up to 2.5 mm and other fillers such as calcite,
- textured finishes are usually premixed at the site.
- the finish coat 20 is applied to the base coat 18 with trowel or like device to provide a vapor permeable finish coat.
- Such premixed finish coat may be obtained from Construmat Inc. of Canada under the trademarks SCRUBBETEX and GRAFFIATO.
- Another form of textured finish coat is available from Rohm & Haas under the trademark RHO-PLEX MC-76.
- the vapor permeability of the wall covering system is sufficient to provide for water vapor transmission in both directions through the wall covering. This ensures that excess moisture build up does not occur in dead spaces in the wall construction and hence avoids rapid deterioration of the wall structure.
- the base coat 18 and finish coat 20 it is important that a sufficient number of fasteners be used so that the hardened base coat and finish coat with the bulky open construction matting embedded therein are suspended from the building wall. It has been found that approximately one fastener or more per 11 ⁇ 2 square feet of applied insulative panelling with matting is required to adequately support and suspend the cementitious base coat and finish coat from the building exterior. Preferably at least one fastener is used for every square foot of insulation applied.
- the insulative layer does not serve to provide any appreciable support to the outer wall, since the load is taken up by the fastener plates. It is understood, however, that in using solid types of insulative material, such as Styrofoam, that such Styrofoam may include grooves or the like which would enhance supporting of the outer building finish to the building wall.
- the base coat of selected cementitious material is applied by hand or machine.
- the cementitious material is sufficiently fluid to flow into all voids in the matting 16 to fill the voids and hence have the filaments of the matting embedded in the cementitious material.
- the thickness of the base layer 18 is of sufficient thickness to fill all voids in the matting section 38 and is thicker than the nominal thickness of the matting 38. This ensures that all filaments of the matting are covered.
- the thickness of the base boat 38 is sufficient to cover the rigid plates 46 while such cementitious material passes through the apertures 48 in the plates 46 and at the same time, permeates through the filaments of the underlying matting material.
- Such hardened cement serves to secure or bind the matting to the base coat 38 in the areas of the fasteners and hence assist in the overall supporting of the exterior cementitious material from the building wall support structure 12.
- the finish coat 20 may be applied thereto. As shown in Figure 7, the finish coat is normally of a lesser thickness than the base coat 38 and is of one or more of the above noted selected materials for the finish coat.
- a fibrous insulation material such as Fiberglas batts
- Fiberglas batts are used in insulating the wall surface
- fibrous insulation does not serve to provide any appreciable support to the outer cementitious layer.
- the load instead is taken up by the fastener plates.
- the fibre structure of the insulation layer permits movement of the outer wall relative to the building wall due to a thermal expansion and contraction of the wall covering system relative to the building as caused by extremes in temperature. This relationship minimizes the cracking of the outer exterior cementitious layer because the fibrous insulation can readily separate itself from the hardened base coat without affecting the exterior surface.
- the fibrous insulation readily compresses should expansion occur between the finish coat and the exterior of the supporting wall.
- the fibrous insulation batts or other types of insulating layer provide a temporary surface to which the matting is applied and to which the cementitious base coat is applied. Once the base coat has hardened with the filaments of matting embedded therein, the surface of the insulating layer is no longer required in providing support for the wall cladding exterior relative to the pre-existing building exterior.
- FIG. 8 and 9 such thermal expansion of the outer coating layer is shown in more detail.
- the insulative panel 28 has applied to its exterior control surface 50 the base coat of cementitious material 18.
- the extremities of the loop define the inner surface 52 of the mat and the outer surface 54 of the mat.
- the outer finish coat 20 is then applied to the hardened base coat 18.
- the same layer has expanded due to increase in temperature.
- the base coat 18 has elongated which is readily compensated for by the matting 38 as the looped portions are distended as demonstrated in Figure 9.
- the use of a matting having the interconnected filament structures is not limiting to the expansion and contraction of the wall coating system. This ensures that the wall coating may expand and contract due to thermal gradients without inducing cracking or extreme stresses on the building structure.
- Tests have been conducted on the building wall covering system of this invention employing the construction matting. It has been found in absolute terms that the impact strength of the cementitious base coat has been increased by approximately three times compared to similar cementitious coating without the matting.
- a test system was developed by using an acrylic modified, fibre reinforced cementitious base coat of approximately 4 mm in thickness placed over the matting to fill all voids therein.
- a synthetic texture coat was applied to the base coat.
- the synthetic texture coat was of approximately 1 mm in thickness.
- the modulus of rupture (flectural) testing was conducted in accordance with ASTMC-78 and impact resistance testing in accordance with ASTMC-2794 (modified). The results of these tests are shown in the following Tables 2 and 3.
- the modulus of rupture was on the average 518 psi which is a significant improvement over prior constructions.
- the impact resistance of the material was in the range of 240 in./lbs.
- the structure according to this invention, has an impact resistance at least three times greater than the structure without the matting.
- the reinforced cement materials may be used as floor overlays, preformed concrete panels for affixing to building walls and the like, and refurbishing or covering new wall support structures where no insulation is required.
- this system may be used in plastering where normally a wire metal lath is used.
- the matting, according to this invention, may be substituted for the wire metal lath to provide a superior plaster coating.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Finishing Walls (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA533940 | 1987-04-06 | ||
CA533940 | 1987-04-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0286370A2 true EP0286370A2 (fr) | 1988-10-12 |
EP0286370A3 EP0286370A3 (fr) | 1989-05-10 |
Family
ID=4135372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88303047A Withdrawn EP0286370A3 (fr) | 1987-04-06 | 1988-04-06 | Panneau de ciment renforcé |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0286370A3 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1431470A1 (fr) * | 2002-12-20 | 2004-06-23 | Rhino Exterior Coating Inc. | Système et procédé pour revêtir des matériaux de construction dimensionellement stables |
EP2525016A1 (fr) * | 2011-05-19 | 2012-11-21 | Saint-Gobain Isover | Paroi exterieure de bâtiment en laine minerale dense |
JP2015200093A (ja) * | 2014-04-07 | 2015-11-12 | 株式会社大林組 | コンクリート構造物の構築方法 |
EP3239430A1 (fr) * | 2016-04-29 | 2017-11-01 | STO SE & Co. KGaA | Procede destine a la fabrication d'un systeme de façade et dispositif destine a l'execution du procede |
CN108952168A (zh) * | 2018-09-13 | 2018-12-07 | 肖霞 | 一种涂料涂装施工中涂饰基面层的处理工艺 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1000144B (de) * | 1955-01-12 | 1957-01-03 | Ver Korkindustrie Ag | Putztraeger, insbesondere fuer Decken und Waende |
US3389518A (en) * | 1964-06-09 | 1968-06-25 | Horbach Edwin | Resilient cellular wall covering and applying it |
CA1148324A (fr) * | 1981-08-12 | 1983-06-21 | John P. R. Fuhrer | Systeme de revetement mural |
US4525970A (en) * | 1983-07-11 | 1985-07-02 | Owens-Corning Fiberglas Corporation | Insulated wall construction |
US4606168A (en) * | 1984-11-29 | 1986-08-19 | Fuhrer John P R | Suspended insulated building exterior cladding |
-
1988
- 1988-04-06 EP EP88303047A patent/EP0286370A3/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1000144B (de) * | 1955-01-12 | 1957-01-03 | Ver Korkindustrie Ag | Putztraeger, insbesondere fuer Decken und Waende |
US3389518A (en) * | 1964-06-09 | 1968-06-25 | Horbach Edwin | Resilient cellular wall covering and applying it |
CA1148324A (fr) * | 1981-08-12 | 1983-06-21 | John P. R. Fuhrer | Systeme de revetement mural |
US4525970A (en) * | 1983-07-11 | 1985-07-02 | Owens-Corning Fiberglas Corporation | Insulated wall construction |
US4606168A (en) * | 1984-11-29 | 1986-08-19 | Fuhrer John P R | Suspended insulated building exterior cladding |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1431470A1 (fr) * | 2002-12-20 | 2004-06-23 | Rhino Exterior Coating Inc. | Système et procédé pour revêtir des matériaux de construction dimensionellement stables |
WO2004057123A2 (fr) * | 2002-12-20 | 2004-07-08 | Cano Coatings Inc. | Systeme et procede pour appliquer un revetement sur des materiaux de construction a stabilite dimensionnelle |
WO2004057123A3 (fr) * | 2002-12-20 | 2004-09-10 | Cano Coatings Inc | Systeme et procede pour appliquer un revetement sur des materiaux de construction a stabilite dimensionnelle |
EP2525016A1 (fr) * | 2011-05-19 | 2012-11-21 | Saint-Gobain Isover | Paroi exterieure de bâtiment en laine minerale dense |
JP2015200093A (ja) * | 2014-04-07 | 2015-11-12 | 株式会社大林組 | コンクリート構造物の構築方法 |
EP3239430A1 (fr) * | 2016-04-29 | 2017-11-01 | STO SE & Co. KGaA | Procede destine a la fabrication d'un systeme de façade et dispositif destine a l'execution du procede |
CN108952168A (zh) * | 2018-09-13 | 2018-12-07 | 肖霞 | 一种涂料涂装施工中涂饰基面层的处理工艺 |
Also Published As
Publication number | Publication date |
---|---|
EP0286370A3 (fr) | 1989-05-10 |
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