CA1142185A - Hardsetting composition, hard material and composite article using the said material - Google Patents
Hardsetting composition, hard material and composite article using the said materialInfo
- Publication number
- CA1142185A CA1142185A CA000352814A CA352814A CA1142185A CA 1142185 A CA1142185 A CA 1142185A CA 000352814 A CA000352814 A CA 000352814A CA 352814 A CA352814 A CA 352814A CA 1142185 A CA1142185 A CA 1142185A
- Authority
- CA
- Canada
- Prior art keywords
- composition
- weight
- cellulose powder
- hardsetting
- filler material
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/02—Cellulosic materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Hardsetting composition, of the type including a hydraulic binder containing silicate and calcium aluminate, a filler material and water.
The filler material contains cellulose powder and the said hardsetting composition further comprises a latex, lime, and calcium chloride (Cl2Ca).
The invention finds a particular application in the production of insulating panels.
Hardsetting composition, of the type including a hydraulic binder containing silicate and calcium aluminate, a filler material and water.
The filler material contains cellulose powder and the said hardsetting composition further comprises a latex, lime, and calcium chloride (Cl2Ca).
The invention finds a particular application in the production of insulating panels.
Description
.
The present invention relates to a hard-settinS composition containing cement such as white cement, Portland cement, slag cement or special cementO
The invention relates more particularly to a hardsetting composition of the type comprising a hydraulic binder containing silicate and calcium aluminate, water and a filler material.
The invention further relates to the hard substance obtained from the said hardsetting composition, as well as to a solid composite article obtained by depositing a layer of the said material on a support.
Mortars are known which are made with lime, with sand, and a cement o~ the type containing silicates and càlcium aluminates.
Said mortars, once set, ~ive a material which has a tendency to crack with time, so that the material disi~te~ratas rapidly due to the freezing up of any water penetrating the empty spaces thus created.
In addition, said known mortars adhere hadly to supports such as wood, metal or plastic materials. And further-more, the said materials are not suitable for fine works.
It is precisely the object of the invention to remedy these disadvantages and to propose a hard-setting composition which is easy to use, which has no tendency to crack, and is hard and resistant enough to adhere to any type of support.
This object is reached, according to the in~ention, due to the fact that the filler material contains cellulose powder, and that the hardsetting material urther contains lime, calcium chloride ~C12Ca) and a latex.
The lime contains quicklime (CaO) and/or slacked lime (calcium hydroxide Ca~OH)2).
~y cellulose powder is meant a substance :
1142~85 containing more than 50% and preferably more than 65~/o of pure cellulose; this is quite a di-fferent product from ordinary wood chips or flour which contains no more than 35/0 cellulose.
S Contrary to ordinary wood flour, said cellulose powder mixes very closely with all the other constituents of the composition according to the invention to give a fine and unctuous paste.
Due to the said cellulose powder, the material dries right through and more homogeneously, so that the cracks obtained with the known compositions are avoidedO Moreover the latex constitutes a water-proof barrier preventing humidity to set into the material, once this is hard.
Ordinarily, the cellulose powder does not present a good affinity for its mixing with the latex.
The calcium chloride (C12Ca) improvesthe affinity of the cellulose powder to the latex.
Advantageously, the filler material further contains silica in fine powder form, the diamet~
er of the particles being at the most equal to 50 ,um with preferably, a content by weight varying between 30 and 200% of the weight of cellulose powder; due to the presence of silica, the material obtained is hard and fire-resistant despite the presence of the cellulose powder.
Advantageously, the msan diameter of the cellulose powder particles is at the most equal to 250 ,um. This fineness of the cellulose particles makes 3 it possible to obtain a greater molding fineness of the composition.
Advantageously, the latex is of the acrylic type or of the synthetic or natural rubber type.
Advantageously, the latex content by weight of dry extract is between 10 and 50% of the weight ll~Zl~S
of cellulose powder in the dry stateO
Thus, owin~ to the latex, the material obtained is less brittle whilst retaining its hardness, and it is made non porous, so as to be completely waterproof, this allowing the material to be used for making-up roofs, ship hulls and other items needing to be, right through their mass, resistant to water or to any other liquids.
Advantageously, the cellulose powder content by weight can vary between 5 and 150% of the weight of the complex, lime ~ cement.
Advantageously, the filler material also contains talc, with preferably, a content by weight varying between 10 and 250% of the weight of cellulose powder.
The invention also relates to a composite object comprising a support in expanded plastic such as polystyrene or expanded polyurethane, coated with at least one layer of hard material such as defined hereinabove.
The cellulose powder helps the said material to adhere to the expanded plastic constituting the support.
Due to the presence of silica in fine powder form and in adequate quantity, and of the talc, the layer of hard material constitutes a really hard and non-brittle shell.
As a result, the said composite article is especially applicable to produce insulating and/or supporting panels, beams, p~nels molded into various shapes for the b~ilding industry, public works and works of art.
The invention will be more readily understood on reading the following deqcription of three examples of embodiment.
~14Z1~5 .
The accompanying table gives~ by wei~ht, the pcrcentages of the different constituen-ts included in the composition of the hardsetting mixture accord-ing to three examples of embodiment~ This table also gives the sources, and where applicable, the commercial reference of these constituents.
Examples 1, 2 and 3 are suitable for the production of sound-, heat- and fire-insulating panels, as will be explained hereafter.
Example 2 gives a lighter material which can also be used to repair furniture.
Example 3 gives a composition which is suitable for repairing or building walls, stairs or floors.
One method for producing insulating panels consists:
- In mixing the constituents in the proportions indicated in the table, for Example 1 or 2, in order to obtain a liquid or pa3ty material which is coated over all the external faces of an expanded polystyrene panel, then in applying on the said coating a glas~-fibre cloth; a second coati~g of another liquid or pasty material, obtained by mixing up the constituents in the proportions of Example 3, is then applied over said cloth. The whole is then left to dry.
'' û ~ u ~ ~ ~ a . ~3 o _ ~ ~ O. :3 . ~ 1 H ~
_, al ~r ~ _~ e ~c ~ o . ,~ u ~ Z
. . )~ / ' H a) ~ ~ a~ ~ a~o: h~
' . ---- . ~--., ~ ~ . ~ ~ ~ o, U ,~ _ _ ~ ~ U a ~ ~, o~ o~ ~L~
~Y ~ ~
The present invention relates to a hard-settinS composition containing cement such as white cement, Portland cement, slag cement or special cementO
The invention relates more particularly to a hardsetting composition of the type comprising a hydraulic binder containing silicate and calcium aluminate, water and a filler material.
The invention further relates to the hard substance obtained from the said hardsetting composition, as well as to a solid composite article obtained by depositing a layer of the said material on a support.
Mortars are known which are made with lime, with sand, and a cement o~ the type containing silicates and càlcium aluminates.
Said mortars, once set, ~ive a material which has a tendency to crack with time, so that the material disi~te~ratas rapidly due to the freezing up of any water penetrating the empty spaces thus created.
In addition, said known mortars adhere hadly to supports such as wood, metal or plastic materials. And further-more, the said materials are not suitable for fine works.
It is precisely the object of the invention to remedy these disadvantages and to propose a hard-setting composition which is easy to use, which has no tendency to crack, and is hard and resistant enough to adhere to any type of support.
This object is reached, according to the in~ention, due to the fact that the filler material contains cellulose powder, and that the hardsetting material urther contains lime, calcium chloride ~C12Ca) and a latex.
The lime contains quicklime (CaO) and/or slacked lime (calcium hydroxide Ca~OH)2).
~y cellulose powder is meant a substance :
1142~85 containing more than 50% and preferably more than 65~/o of pure cellulose; this is quite a di-fferent product from ordinary wood chips or flour which contains no more than 35/0 cellulose.
S Contrary to ordinary wood flour, said cellulose powder mixes very closely with all the other constituents of the composition according to the invention to give a fine and unctuous paste.
Due to the said cellulose powder, the material dries right through and more homogeneously, so that the cracks obtained with the known compositions are avoidedO Moreover the latex constitutes a water-proof barrier preventing humidity to set into the material, once this is hard.
Ordinarily, the cellulose powder does not present a good affinity for its mixing with the latex.
The calcium chloride (C12Ca) improvesthe affinity of the cellulose powder to the latex.
Advantageously, the filler material further contains silica in fine powder form, the diamet~
er of the particles being at the most equal to 50 ,um with preferably, a content by weight varying between 30 and 200% of the weight of cellulose powder; due to the presence of silica, the material obtained is hard and fire-resistant despite the presence of the cellulose powder.
Advantageously, the msan diameter of the cellulose powder particles is at the most equal to 250 ,um. This fineness of the cellulose particles makes 3 it possible to obtain a greater molding fineness of the composition.
Advantageously, the latex is of the acrylic type or of the synthetic or natural rubber type.
Advantageously, the latex content by weight of dry extract is between 10 and 50% of the weight ll~Zl~S
of cellulose powder in the dry stateO
Thus, owin~ to the latex, the material obtained is less brittle whilst retaining its hardness, and it is made non porous, so as to be completely waterproof, this allowing the material to be used for making-up roofs, ship hulls and other items needing to be, right through their mass, resistant to water or to any other liquids.
Advantageously, the cellulose powder content by weight can vary between 5 and 150% of the weight of the complex, lime ~ cement.
Advantageously, the filler material also contains talc, with preferably, a content by weight varying between 10 and 250% of the weight of cellulose powder.
The invention also relates to a composite object comprising a support in expanded plastic such as polystyrene or expanded polyurethane, coated with at least one layer of hard material such as defined hereinabove.
The cellulose powder helps the said material to adhere to the expanded plastic constituting the support.
Due to the presence of silica in fine powder form and in adequate quantity, and of the talc, the layer of hard material constitutes a really hard and non-brittle shell.
As a result, the said composite article is especially applicable to produce insulating and/or supporting panels, beams, p~nels molded into various shapes for the b~ilding industry, public works and works of art.
The invention will be more readily understood on reading the following deqcription of three examples of embodiment.
~14Z1~5 .
The accompanying table gives~ by wei~ht, the pcrcentages of the different constituen-ts included in the composition of the hardsetting mixture accord-ing to three examples of embodiment~ This table also gives the sources, and where applicable, the commercial reference of these constituents.
Examples 1, 2 and 3 are suitable for the production of sound-, heat- and fire-insulating panels, as will be explained hereafter.
Example 2 gives a lighter material which can also be used to repair furniture.
Example 3 gives a composition which is suitable for repairing or building walls, stairs or floors.
One method for producing insulating panels consists:
- In mixing the constituents in the proportions indicated in the table, for Example 1 or 2, in order to obtain a liquid or pa3ty material which is coated over all the external faces of an expanded polystyrene panel, then in applying on the said coating a glas~-fibre cloth; a second coati~g of another liquid or pasty material, obtained by mixing up the constituents in the proportions of Example 3, is then applied over said cloth. The whole is then left to dry.
'' û ~ u ~ ~ ~ a . ~3 o _ ~ ~ O. :3 . ~ 1 H ~
_, al ~r ~ _~ e ~c ~ o . ,~ u ~ Z
. . )~ / ' H a) ~ ~ a~ ~ a~o: h~
' . ---- . ~--., ~ ~ . ~ ~ ~ o, U ,~ _ _ ~ ~ U a ~ ~, o~ o~ ~L~
~Y ~ ~
Claims (10)
1. A hardsetting composition of the type comprising a hydraulic binder in the divided state and containing silicate and calcium aluminate, such as white cement, a filler material and water, wherein the said filler material contains cellulose powder and wherein the said hardsetting composition further comprises a latex, lime, and calcium chloride (Cl2Ca).
2. The composition of claim 1, wherein the filler material further contains silica in fine powder form, the mean diameter of the particles being preferably at the most equal to 50 µm, with preferably, a weight content varying between 30% and 200% of the weight of the cellulose powder.
3. The composition of claim 1, wherein the mean diameter of the particles of cellulose powder is at the most equal to 250 µm.
4. The composition of claim 1, wherein the latex is of the acrylic type or of the natural or synthetic rubber type.
5. The composition of claim 1, wherein the latex contents by weight of dry extract may vary between 10% and 50% of the weight of cellulose powder in the dry state.
6. The composition of claim 1, wherein the cellulose powder contents by weight may vary between 5% and 150% of the complex lime + hydraulic binder.
7. The composition of claim 1, wherein the filler material further contains talc with, preferably, a weight content varying between 10% and 250% of the weight of the cellulose powder.
8. The hard material obtained from the hardsetting composition of claim 1.
9. The solid composite article comprising a support made of expanded plastic, coated over at least one face, with the hard material obtained from the composition of claim 1.
10. Application of the article of claim 9 to the production of insulating panels.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7913511A FR2457846A1 (en) | 1979-05-28 | 1979-05-28 | Hardenable cement mixt. contg. lime, latex, and cellulose powder - for mfg. heat and sound insulating or fireproof panels or mortar for repairing walls stairs or furniture |
| FR7913511 | 1979-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1142185A true CA1142185A (en) | 1983-03-01 |
Family
ID=9225920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000352814A Expired CA1142185A (en) | 1979-05-28 | 1980-05-27 | Hardsetting composition, hard material and composite article using the said material |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1142185A (en) |
| FR (1) | FR2457846A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2539788B1 (en) * | 1983-01-26 | 1985-09-27 | Comp Generale Electricite | PROTECTIVE COATING FOR BUILDING EXTERIOR INSULATION PANEL |
| FR2544303B1 (en) * | 1983-03-28 | 1987-12-04 | Pascau Jean Maurice | CURABLE COMPOSITION, PROCESS FOR IMPLEMENTING SAME AND APPLICATION IN PARTICULAR TO SEALING OF HOLES |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR852436A (en) * | 1938-04-01 | 1940-02-01 | Gummiwerk Ku Bler G M B H | Process for the production of building materials |
| NL271071A (en) * | 1960-11-07 | 1900-01-01 | ||
| FR1583630A (en) * | 1967-11-30 | 1969-11-21 | ||
| ZA757758B (en) * | 1974-12-13 | 1976-11-24 | Hoechst Ag | Grinding method for cellulose |
| US4057542A (en) * | 1976-08-30 | 1977-11-08 | G. D. Searle & Co. | Process for the preparation of 17β-hydroxy-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone |
| DE2703342B2 (en) * | 1977-01-27 | 1979-05-03 | Vereinigte Steinwerke Gmbh, 4300 Essen | Mortar for coating thermal insulation panels |
-
1979
- 1979-05-28 FR FR7913511A patent/FR2457846A1/en active Granted
-
1980
- 1980-05-27 CA CA000352814A patent/CA1142185A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2457846A1 (en) | 1980-12-26 |
| FR2457846B1 (en) | 1983-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |