AU744952B2 - Masonry render - Google Patents
Masonry render Download PDFInfo
- Publication number
- AU744952B2 AU744952B2 AU11356/99A AU1135699A AU744952B2 AU 744952 B2 AU744952 B2 AU 744952B2 AU 11356/99 A AU11356/99 A AU 11356/99A AU 1135699 A AU1135699 A AU 1135699A AU 744952 B2 AU744952 B2 AU 744952B2
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- AU
- Australia
- Prior art keywords
- range
- mixture
- render
- dry
- masonry render
- 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.)
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 79
- 239000000203 mixture Substances 0.000 claims description 67
- 239000004576 sand Substances 0.000 claims description 33
- 239000004615 ingredient Substances 0.000 claims description 27
- 239000004575 stone Substances 0.000 claims description 26
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 25
- 239000011398 Portland cement Substances 0.000 claims description 25
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 25
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 25
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 25
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 25
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 25
- 239000004571 lime Substances 0.000 claims description 25
- 239000003054 catalyst Substances 0.000 claims description 23
- 239000000377 silicon dioxide Substances 0.000 claims description 23
- 239000004816 latex Substances 0.000 claims description 21
- 229920000126 latex Polymers 0.000 claims description 21
- 229920001577 copolymer Polymers 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000004568 cement Substances 0.000 claims description 12
- 239000004014 plasticizer Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000004005 microsphere Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 229910021487 silica fume Inorganic materials 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000012798 spherical particle Substances 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- BBDKZWKEPDTENS-UHFFFAOYSA-N 4-Vinylcyclohexene Chemical compound C=CC1CCC=CC1 BBDKZWKEPDTENS-UHFFFAOYSA-N 0.000 claims description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 2
- 244000007853 Sarothamnus scoparius Species 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- XWCWNUSFQVJNDI-UHFFFAOYSA-N cyclohex-3-en-1-ylbenzene Chemical compound C1C=CCCC1C1=CC=CC=C1 XWCWNUSFQVJNDI-UHFFFAOYSA-N 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 claims description 2
- 229920006158 high molecular weight polymer Polymers 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- 239000001023 inorganic pigment Substances 0.000 claims description 2
- 239000012860 organic pigment Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- 238000010186 staining Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 8
- 239000007864 aqueous solution Substances 0.000 claims 4
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000004040 coloring Methods 0.000 claims 1
- 239000003755 preservative agent Substances 0.000 claims 1
- 239000004150 EU approved colour Substances 0.000 description 2
- 229940006093 opthalmologic coloring agent diagnostic Drugs 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
WO 99/23044 PCT/AU98/00927 1 MASONRY RENDER FIELD OF THE INVENTION THIS INVENTION relates to surface renders in particular but not limited to durable and decorative masonry renders and methods of their application to the internal and external surfaces of buildings.
BACKGROUND
ART
Concrete or cement based masonry renders are well known finishes applied to the external and internal walls of buildings. In general such prior art masonry renders are substantially comprised of a mixture of sand and Portland cement with additions such as plasterers lime and colouring agents. Most render finishes are applied manually to the building surface with a trowel, sponge or roller or may be sprayed under high pressure.
Problems associated with prior art renders include the lack of being generally waterproof as opposed to being merely water resistant. Other problems include a lack of adhesion of the render to smooth surfaces and different types of surfaces; breaking down of the render due to continued exposure to harsh sunlight or strong ultra violet light, shrinkage, and susceptibility to frost and fungal damage. In addition the composition of the render mixture must be such that during the application process it retains a workable consistency to achieve commercially satisfactory results.
OBIECT OF THE INVENTION It is therefore an object of the present invention to overcome or alleviate to at least some degree some of the problems associated with prior art masonry render mixtures and methods of their application.
OUTLINE OF THE INVENTION In one broad aspect the invention resides in a dry masonry render mixture comprising the ingredients of Portland cement, river sand, graded stones, plasterers lime, said ingredients mixed in the presence of a filler typically of light weight filaments and silica based catalyst.
in a first preferred aspect the invention resides in a dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- WO 99/23044 PCT/AU98/00927 2 Portland cement in the range 20% 36% and preferably about 31.37%; plasterers lime in the range 1% 3% and preferably about 2.24%; washed sand in the range 55% 70% and preferably about 64.40%; silica based catalyst in the range 0.5% 3.5% and preferably about 1.87%; and hydroxypropyl methylcellulose filaments in the range 0.02% 0.35% and preferably about 0.12%.
In a second preferred aspect the invention resides in a dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 20% 38% and preferably about 28.02%; plasterers lime in the range 1% 3% and preferably about 1.91%; washed sand in the range 48% 70% and preferably about 56.57%; microspheres of fused alumina silicate in the range 8% 2 2 and preferably about 13.38%; and 0.12% hydroxypropyl methylcellulose filaments.
In a third preferred aspect the invention resides in a dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 20% 35% and preferably about 27.53%; plasterers lime in the range 1% 3% and preferably about 2.13%; washed sand in the range 45% 65% and preferably about 56.25%; graded stone in the range 8% 16% and preferably about 12.00%; hydroxypropyl methylcellulose filaments in the range 0.05% 0.4% and preferably about 0.19%; cement plasticiser in the range 0.02% 0.15% and preferably about 0.08%; and silica based catalyst in the range 0.08% 0.5% and preferably about 1.82%.
In a fourth preferred aspect the invention resides in a dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- WO 99/23044 PCT/AU98/00927 3 Portland cement in the range 20% 35% and preferably about 28.23%; plasterers lime in the range 1% 3% and preferably about 2.13%; washed sand in the range 45% 65% and preferably about 58.82%; graded stone in the range 8% 16% and preferably about 8.77%; hydroxypropyl methylcellulose filaments in the range 0.05% 0.4% and preferably about 0.19%; cement plasticiser in the range 0.02% 0.15% and preferably about 0.08%; and silica based catalyst in the range 0.08% 0.5% and preferably about 1.78%.
In a fifth preferred aspect the invention resides in a dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 20% 35% and preferably about 27.53%; plasterers lime in the range 1% 3% and preferably about 2.13%; washed sand in the range 45% 65% and preferably about 56.25%; graded stone in the range 8% 16% and preferably about 12.00%; hydroxypropyl methylcellulose filaments in the range 0.05% 0.4% and preferably about 0.19%; cement plasticiser in the range 0.02% 0.15% and preferably about 0.08%; and silica based catalyst in the range 0.08% 0.5% and preferably about 1.82%.
In a sixth preferred aspect the invention resides in a dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 30% 40% and preferably about 31.23%; plasterers lime in the range 1% 3% and preferably about 2.29%; washed sand in the range 55% 70% and preferably about 64.25%; silica based catalyst in the range 1% to 5% and preferably about 2.08%; and hydroxypropyl methylcellulose filaments in the range 0.01% 0.25% and WO 99/23044 PCT/AU98/00927 4 preferably about 0.1 In a seventh preferred aspect the invention resides in a dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 30% 40% and preferably about 31.66%; plasterers lime in the range 1% 3% and preferably about 2.50%; washed sand in the range 55% 70% and preferably about 64.25%; silica based catalyst in the range 1% to 5% and preferably about 2.08%; and hydroxypropyl methylcellulose filaments in the range 0.01% 0.25% and preferably about 0.1 In an eighth preferred aspect the invention resides in a dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 22% 33% and preferably about 31.52%; plasterers lime in the range 1% 3% and preferably about 2.50%; washed sand in the range 50% 65% and preferably about 63.75%; silica based catalyst in the range 1% to 3% and preferably about 2.08%; and hydroxypropyl methylcellulose filaments in the range 0.01% 0.25% and preferably about 0.15% Preferably the washed sand is river sand of an average grain diameter of less than or equal to 0.5 mm.
Preferably the grade stone is washed river stone and depending on the actual texture of the surface ultimately desired the graded stones may be uniformly approximately 1.5 mm, 2.0 mm or 3.0 mm in diameter. Alternatively a mixture of different diameter stones in the same mixture may be used.
Suitably the microspheres are spherical particles of fused aluminium silicate having diameters in the ranges of one to one hundred and fifty (150) microns and twelve (12) to four hundred and twenty five (425) microns. Suitably the hydroxypropyl methylcellulose filaments are in powdered form, and comprise powdered solid hydrophobic acid copolymer such as sodium salts of a polymeric WO 99/23044 PCT/AU98/00927 acid copolymer which are dispersants for a wide range of inorganic and organic pigments used to colour the render.
Preferably the cement plasticiser is comprised of latex solids, water, sodium hydroxide and residual monomers.
The latex solids comprise primarily high molecular weight polymer with small amounts of other ingredients such as surfactants, antioxidants and preservations.
The residual monomers can include styrene, 4-phenylcyclohexene and 4vinylcyclohexene.
Preferably the silica based catalyst is silica fume which is a dry densified microsilica powder and a by-product from silicon and ferrosilicon industries where they are produced in submerged electric arc furnaces.
In another aspect the invention resides in a method of application of a masonry render as hereinabove described to uneven surfaces comprising the steps of:- 1. mixing dry render mixture to a required flexural strength with a range of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; 2. applying a uniformly 2 to 3 mm thick coating to the uneven surface avoiding depositing of cold joints in large drops to obtain a sand like finish.
In another aspect the invention resides in a method of application of a masonry render as hereinabove described over rough surfaces which require more build up to level the surface comprising the steps of:- 1. mixing dry render mixture according to a required flexural strength with a range of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; 2. applying a uniformly 2 to 3 mm thick first coat to the rough surface avoiding depositing cold joints in large drops; 3. applying a second coat of dry render mixture mixed with a range of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; WO 99/23044 WO 9923044PCT/AU98/00927 6 4. preparing the second coat with an implement designed to apply a textured finish to the second coat when the render has almost set; and In another aspect the invention resides in a method of application of a masonry render as hereinabove described to a surface to provide a continuous seamless vertical scratch or swirl pattern finish comprising the steps of:- 1. mixing dry render mixture accordingly to a required flexural strength with a range of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; 2. applying a first coat of 2 to 3 mm thickness to the surface; 3. mixing dry render with a range of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency with graded stones; 4. applying a second coat approximately 3 mm thick of the mixture containing graded stones over the first coat; 1 5 5. creating scratch and/or swirl patterns in the second coat; and 6. applying 2 coats of an acrylic membrane paint to the second coat as a protective cover against dirt and grime to provide a washable surface.
In another aspect the invention resides in a method of application of a masonry render as hereinabove described where a flat "European" sand stone appearance is desired comprising the steps of:- 1. mixing dry render mixture according to a required flexural strength with a range of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; 2. applying one coat directly to a surface or a surface having previously been prepared with a similar but less concentrated mixture; and 3. applying 2 coats of acrylic membrane paint to the coated surface as a protective cover against dirt and grime to provide a washable surface.
Preferably, the dry render mixture is mixed with the water and polymer solution using a mechanical stirrer to ensure complete mixing to a slurry of a WO 99/23044 PCT/AU98/00927 7 workable consistency.
Suitably, the polymer is a carboxylated styrene/butadiene copolymer latex containing a non-staining antioxidant.
Preferably the implement used to apply a textured finish is a broom or a coarse brush, however, other implements providing a similar effect may also be used.
In applications where a coloured finish is needed, colouring agents may be added to the dry render mixture or slurry during the stirring process.
Whilst the above has been given by way of illustrative example of the present invention many variations and modifications thereto will be apparent to those skilled in the art without departing from the broad ambit and scope of the invention as herein set forth in the claims.
'r
Claims (31)
1. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 20% 36%; plasterers lime in a range 1% 3%; washed sand in the range 55% silica based catalyst in the range 0.5% and hydroxypropyl methylcellulose filliments in the range 0.02% 0.35%.
2. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement 31.37%; Splasterers lime 2.24%; washed sand 64.40%; 15 silica based catalyst 1.87%; and •hydroxypropyl methylcellulose filliments 0.12%.
3. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 20% 38%; plasterers lime in the range 1% 3%; washed sand in the range 48% microspheres of fused alumina silicate in the range 8% 22%; and 0.12% hydroxypropyl methylcellulose filliments.
4. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement 28.02%; plasterers lime 1.91%; washed sand 56.57%; microspheres of fused alumina silicate 13.38%; and 0.12% hydroxypropyl methylcellulose filaments. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 20% plasterers lime in the range 1% 3%; washed sand in the range 45% 1.5 mm diameter graded stone in the range 8% 16%; hydroxypropyl methylcellulose filaments in the range 0.05% cement plasticiser in the range 0.02% 0.15%; and silica based catalyst in the range 0.08%
6. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement 27.53%; plasterers lime 2.13%; washed sand 56.25%; 1.5 mm diameter graded stone 12.00%; 15 hydroxypropyl methylcellulose filaments 0.19%; cement plasticiser 0.08%; and 1.82% silica based catalyst.
7. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- 20 Portland cement in the range 20% plasterers lime in the range 1% 3%; washed sand in the range 45% mm diameter graded stone in the range 8% 16%; hydroxypropyl methylcellulose filaments in the range 0.05% 0.4%; cement plasticiser in the range 0.02% 0.15%; and silica based catalyst in the range 0.08%
8. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement 28.23%; plasterers lime 2.13%; washed sand 58.82%; LI Q r _-r mm diameter graded stone 8.77%; hydroxypropyl methylcellulose filaments 0.19%; cement plasticiser 0.08%; and 1.78% silica based catalyst.
9. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 20% plasterers lime in the range 1% 3%; washed sand in the range 45% 3.0 mm diameter graded stone in the range 8% 16%; hydroxypropyl methylcellulose filaments in the range 0.05% 0.4%; cement plasticiser in the range 0.02% 0.15%; and silica based catalyst in the range 0.08%
10. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement 27.53%; plasterers lime 2.13%; washed sand 56.25%; mm diameter graded stone 12.00%; 20 hydroxypropyl methylcellulose filaments 0.19% cement plasticiser 0.08%; and 1.82% silica based catalyst.
11. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 30% plasterers lime in the range 1% 3%; washed sand in the range 55% silica based catalyst in the range 1% and hydroxypropyl methylcellulose filaments in the range 0.01% 0.25%.
12. A dry masonry render mixture comprising the following ingredients I 22 5,77 c 777 7 7"- 11 expressed as a percentage by weight:- Portland cement 31.23%; plasterers lime 2.29%; washed sand 64.25%; silica based catalyst 2.08%; hydroxypropyl methylcellulose filaments 0.15%.
13. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement 31.66%; plasterers lime 2.50%; washed sand 64.25%; silica based catalyst 2.08%; and 0.15% hydroxypropyl methylcellulose filaments. S 15 14. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement in the range 22% 33%; plasterers lime in the range 1% 3%; washed sand in the range 50% 20 silica based catalyst in the range 1% and •hydroxypropyl methylcellulose filliments in the range 0.01% 0.25%. A dry masonry render mixture comprising the following ingredients expressed as a percentage by weight:- Portland cement 31.52%; plasterers lime 2.50%; washed sand 63.75%; silica based catalyst 2.08%; and 0.15% hydroxypropyl methylcellulose filliments.
16. A dry masonry render mixture as claimed to any one of the above claims wherein the washed sand is river sand of a average grain diameter of less isicus.UVs7 than or equal to
17. A dry masonry render mixture as claimed in any one of claims 5 to wherein the graded stone is washed river stone.
18. A dry masonry render mixture as claimed in any one of claims 1 to includes graded stone of about 1.5 mm, 2.0 mm or 3.0 mm or a mixture thereof.
19. A dry masonry render mixture as claimed in any one of claims 5 to wherein the graded stone includes additional graded stone of different diameters in the same mixture.
20. A dry masonry render mixture as claimed in any one of claims 5 to wherein the cement plasticiser is comprised of latex solids, water, sodium hydroxide and residual monomers.
21. A dry masonry render mixture as claimed in claim 21 wherein the latex solids comprise primarily high molecular weight polymer with other ingredients including surfactants, antioxidants and preservatives. S•22. A dry masonry render as claimed in claim 21 wherein the residual monomers, include styrene, 4-phenylcyclohexene and 4-vinylcyclohexene.
23. A dry masonry render mixture as claimed in claim 3 and claim 4 wherein the microspheres are spherical particles of fused aluminium silicate having diameters in the range of one to one hundred and fifty (150) microns.
24. A dry masonry render mixture as claimed claim 3 and claim 4 wherein the microspheres are spherical particles of fused aluminium silicate having diameters in the range of twelve (12) to four hundred and twenty five (425) microns.
25. A dry masonry render mixture as claimed in any one of the abovementioned claims wherein the filaments are hydroxypropyl methylcellulose in powdered form, and powdered solid hydrophobic acid copolymer such as sodium salts of a polymeric acid copolymer which are dispersants for inorganic and organic pigments used to colour the render.
26. A dry masonry render mixture as claimed in any one of the abovementioned claims wherein the silica based catalyst is silica fume, a dry densified 13 microsil ica powder and a by-product from silicon and ferrosilicon industries produced in submerged electric arc furnaces.
27. A method of application of a masonry render according to any one of claims 1 to 26 to uneven surfaces comprising the steps of:- 1. mixing the dry render mixture to a required flexural strength with a range of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; 2. applying a uniformly 2 to 3 mm thick coating to the uneven surface avoiding depositing of cold joints in large drops to obtain a sand like finish.
28. A method of application of a masonry render according to any one of claims 1 to 26 over rough surfaces which require more build up to level the surface °comprising the steps of:- *o g5 1. mixing dry render mixture to a required flexural strength with a range 15 of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; 2. applying a uniformly 2 to 3 mm thick first coat to the rough surface avoiding depositing cold joints in large drops; 3. applying a second coat of dry render mixture mixed with a range of 1:1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; 4. preparing the second coat with an implement designed to apply a textured finish to the second coat when the render has almost set.
29. A method of application of a masonry render according to any one of claims 1 to 26 to a surface to provide a continuous seamless vertical scratch or swirl pattern finish comprising the steps of:- 1. mixing dry render mixture to a required flexural strength with a range of 1 :1 to 1:6 but preferably 1:4 ratio solution of copolymer latex and water to a workable consistency; 2. applying a first coat of 2 to 3 mm thickness to the surface; 3. mixing dry render with a range of 1:1 to 1:6 but preferably 1:4 ratio 14 solution of copolymer latex and water to a workable consistency with graded stones; 4. applying a second coat approximately 3 mm thick of the mixture containing graded stones over the first coat; 5. creating scratch and/or swirl patterns in the second coat; and 6. applying 2 coats of an acrylic membrane paint to the second coat as a protective cover against dirt and grime to provide a washable surface. A method of application of a masonry render according to any one of claims 1 to 26 where a flat "European" sand stone appearance is desired comprising the steps of:- 1. mixingdry render mixture to a required flexural strength with a range of 1:1 to 1:6 but preferably 1:4 ratio solution copolymer latex and water to a workable consistency; 15 2. applying one coat directly to a surface or a surface having previously been prepared with a similar but less concentrated mixture; and 3. applying 2 coats of acrylic membrane paint to the coated surface as a protective cover against dirt and grime to provide a washable surface.
31. A method of application of masonry render as defined in any one of claims 27 to 30 wherein the copolymer latex is carboxylated styrene/butadiene copolymer latex containing a non-staining antioxidant.
32. A method of application of masonry render as defined in any one of claims 27 to 30 wherein a textured finish is formed and the implement used to apply the textured finish is a broom.
33. A method of application of masonry render as defined in any one of claims 27 to 30 wherein a textured finish is formed and the implement used to apply the textured finish is a coarse brush.
34. A method of application of masonry render as defined in any one of claims 27 to 30 wherein a colouring agent is added to the dry render mixture or S, slurry during the stirring process. A dry masonry render according to any one of claims 1-4 further including graded stone in a size range from 1.5 mm 3.0 mm.
36. A masonry render comprising a blend of a dry masonry render mix and an aqueous solution, the dry masonry render mix being a mixture according to any one of claims 1-26, and the aqueous solution comprising a copolymer latex solution.
37. A masonry render comprising a two part blend of a dry masonry render mix and an aqueous solution, the dry masonry render mix being a mixture according to any one of claims 1-26, and the aqueous solution comprising a carboxylated styrene/butadiene copolymer latex solution. oo °f•t
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU11356/99A AU744952B2 (en) | 1997-11-04 | 1998-11-04 | Masonry render |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPP0192A AUPP019297A0 (en) | 1997-11-04 | 1997-11-04 | Masonry render |
| AUPP0192 | 1997-11-04 | ||
| PCT/AU1998/000927 WO1999023044A1 (en) | 1997-11-04 | 1998-11-04 | Masonry render |
| AU11356/99A AU744952B2 (en) | 1997-11-04 | 1998-11-04 | Masonry render |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU1135699A AU1135699A (en) | 1999-05-24 |
| AU744952B2 true AU744952B2 (en) | 2002-03-07 |
Family
ID=25614468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU11356/99A Ceased AU744952B2 (en) | 1997-11-04 | 1998-11-04 | Masonry render |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU744952B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4280848A (en) * | 1977-12-05 | 1981-07-28 | Tile Council Of America Inc. | Sag resistant mortar compositions |
| EP0269015A2 (en) * | 1986-11-21 | 1988-06-01 | HENKEL CORPORATION (a Delaware corp.) | Sag resistant dry set mortar composition |
-
1998
- 1998-11-04 AU AU11356/99A patent/AU744952B2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4280848A (en) * | 1977-12-05 | 1981-07-28 | Tile Council Of America Inc. | Sag resistant mortar compositions |
| EP0269015A2 (en) * | 1986-11-21 | 1988-06-01 | HENKEL CORPORATION (a Delaware corp.) | Sag resistant dry set mortar composition |
Also Published As
| Publication number | Publication date |
|---|---|
| AU1135699A (en) | 1999-05-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| GD | Licence registered |
Name of requester: RIVIERA BUILDING SERVICES PTY LTD |
|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |