CN111848110A - High-strength anti-bending inorganic artificial stone - Google Patents
High-strength anti-bending inorganic artificial stone Download PDFInfo
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- CN111848110A CN111848110A CN202010760857.9A CN202010760857A CN111848110A CN 111848110 A CN111848110 A CN 111848110A CN 202010760857 A CN202010760857 A CN 202010760857A CN 111848110 A CN111848110 A CN 111848110A
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- 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
- C04B28/30—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 magnesium cements or similar cements
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A high-strength anti-bending inorganic artificial stone, in particular to a high-strength anti-bending inorganic artificial stone. The invention aims to solve the problems of low compressive strength and poor bending resistance of the conventional inorganic artificial stone. According to the invention, the artificial stone achieves the purposes of higher strength and better bending resistance by setting the proportion of the raw materials, the binder and the additive, and tests show that the bending strength of the inorganic artificial stone prepared by the method is 24-30 MPa, and the compressive strength is 80-120 MPa. The invention is applied to the field of preparation of inorganic artificial stones.
Description
Technical Field
The invention relates to a high-strength anti-bending inorganic artificial stone.
Background
The natural stone belongs to non-renewable resources, the demand of people on the natural stone is increasing day by day, the rising of the artificial stone industry is a necessary trend, and the artificial stone is applied to table surfaces such as reception desks, bar counters, bathrooms and the like, and can also be used as an outer wrapping surface of a wall surface or a column. At present, the rostone divide into inorganic rostone and organic rostone, and organic rostone is many in traditional rostone, and inside contains organic composition such as resin, glue, and resin content is higher its bending resistance is better, difficult fracture, and hardness and wearability reduce simultaneously, and easy ageing is used for interior decoration more to avoid sunshine to penetrate directly, and is relatively poor in aspects such as safety ring protects, high temperature resistant.
The inorganic artificial stone mostly adopts white Portland cement as a binder, the preparation process of the cement has higher requirement on the calcining temperature, the energy consumption is high, and CO is generated2The emission is more, and the product has low strength, poor bending resistance and poor wear resistance, and causes the unfavorable phenomena of efflorescence and the like.
Disclosure of Invention
The invention aims to solve the problems of low compressive strength and poor bending resistance of the conventional inorganic artificial stone and provides a high-strength bending-resistant inorganic artificial stone.
The high-strength anti-bending inorganic artificial stone comprises 135 parts of magnesium oxysulfate cement slurry, 40-50 parts of broken glass, 10-20 parts of stone leftover materials, 40-50 parts of basalt stones, 1-3 parts of pigments, 3-10 parts of glass fibers, 1-2 parts of a water reducing agent, 1-2 parts of redispersible latex powder, 0.1-0.3 part of cellulose ether and 3-5 parts of silica fume by mass.
According to the invention, magnesium oxysulfate cement and glass fiber are combined, and the artificial stone achieves the purposes of higher strength and better bending resistance by setting the proportion of raw materials, a binder and an additive, and tests show that the bending strength of the prepared inorganic artificial stone is 24-30 MPa, and the compressive strength is 80-120 MPa.
Detailed Description
The first embodiment is as follows: the high-strength anti-bending inorganic artificial stone comprises, by mass, 135 parts of magnesium oxysulfate cement slurry, 40-50 parts of broken glass, 10-20 parts of stone leftover materials, 40-50 parts of basalt stones, 1-3 parts of pigments, 3-10 parts of glass fibers, 1-2 parts of a water reducing agent, 1-2 parts of redispersible latex powder, 0.1-0.3 part of cellulose ether and 3-5 parts of silica fume.
According to the embodiment, magnesium oxysulfate cement and the glass fiber are combined, the artificial stone achieves the purposes of high strength and good bending resistance by setting the proportion of the raw materials, the binder and the additive, and tests show that the bending strength of the inorganic artificial stone prepared by the embodiment is 24-30 MPa, and the compressive strength is 80-120 MPa.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the magnesium oxysulfate cement slurry is prepared from light-burned magnesium oxide powder, a magnesium sulfate heptahydrate solution and a modifier; the preparation method comprises the following steps: dissolving magnesium sulfate heptahydrate in water to prepare MgSO with mass concentration of 34-38%4Adding modifier until the modifier is completely dissolved in MgSO4After the solution is dissolved, adding light-burned magnesia powder to prepare magnesia-sulfur cement slurry. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the mass ratio of the modifier to the light-burned magnesia powder is (1-3) to 100; light-burned magnesia powder and MgSO4The mass ratio of the solution is 1 (1.4-1.8). The others are the same as in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: the modifier is one or a mixture of more of citric acid, tartaric acid, oxalic acid, aluminum sulfate and alum according to any ratio. The rest is the same as one of the first to third embodiments.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: the particle size of the cullet is 20-40 meshes; the particle size of the basalt stone is 40-80 meshes. The rest is the same as one of the first to fourth embodiments.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is: the stone leftover material is marble leftover material with the grain size of 80-120 meshes. The rest is the same as one of the first to fifth embodiments.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is: the pigment is an inorganic pigment. The rest is the same as one of the first to sixth embodiments.
The specific implementation mode is eight: the present embodiment differs from one of the first to seventh embodiments in that: the inorganic pigment is titanium dioxide or ferric oxide. The rest is the same as one of the first to seventh embodiments.
The specific implementation method nine: the present embodiment differs from the first to eighth embodiments in that: the re-dispersible latex powder is a mixture composed of one or more of ethylene/vinyl acetate copolymer, vinyl acetate/versatic acid ethylene copolymer and acrylic acid copolymer according to any ratio. The rest is the same as the first to eighth embodiments.
The detailed implementation mode is ten: the present embodiment differs from one of the first to ninth embodiments in that: the cellulose ether is hydroxypropyl methyl cellulose; the water reducing agent is a naphthalene water reducing agent. The rest is the same as one of the first to ninth embodiments.
The concrete implementation mode eleven: the present embodiment differs from one of the first to tenth embodiments in that: a preparation method of a high-strength anti-bending inorganic artificial stone comprises the following steps: firstly, weighing 135 parts of magnesium oxysulfate cement slurry, 40-50 parts of broken glass, 10-20 parts of stone leftover materials, 40-50 parts of basalt stones, 1-3 parts of pigments, 3-10 parts of glass fibers, 1-2 parts of water reducing agents, 1-2 parts of redispersible latex powder, 0.1-0.3 part of cellulose ether and 3-5 parts of silica fume as raw materials in parts by weight; secondly, mixing the raw materials weighed in the first step and uniformly stirring the raw materials to form slurry for later use; thirdly, placing the mould on a workbench, and coating a layer of release agent in the mould and at the edge of the mould; pouring the stirred slurry into a mold, and then placing the mold on a vibration table to vibrate and compact to obtain a molded product; and fourthly, curing the molded product in a curing room with the temperature of 20-25 ℃ and the relative humidity of 55-65%, demolding after 24 hours, continuing curing, and polishing the surface to be smooth after drying. The rest is the same as one of the first to tenth embodiments.
The following examples were used to demonstrate the beneficial effects of the present invention:
example 1 this example is a high-strength bending-resistant inorganic artificial stone comprising, by mass, 130 parts of magnesium oxysulfate cement slurry, 40 parts of cullet having a particle size of 30 meshes, 12 parts of marble scraps having a particle size of 100 meshes, 40 parts of basalt stone having a particle size of 60 meshes, 2 parts of iron oxide, 8 parts of glass fiber, 2 parts of naphthalene water reducing agent, 2 parts of acrylic copolymer, 0.3 part of hydroxypropyl methylcellulose, and 5 parts of silica fume.
The preparation method comprises the following steps: firstly, 130 parts of magnesium oxysulfate cement slurry, 40 parts of crushed glass with the particle size of 30 meshes, 12 parts of marble leftover with the particle size of 100 meshes, 40 parts of basalt stone with the particle size of 60 meshes, 2 parts of ferric oxide, 8 parts of glass fiber, 2 parts of naphthalene water reducer, 2 parts of acrylic copolymer, 0.3 part of hydroxypropyl methyl cellulose and 5 parts of silica fume are weighed according to the mass parts as raw materials; secondly, mixing the raw materials weighed in the first step and uniformly stirring the raw materials to form slurry for later use; thirdly, placing the mould on a workbench, and coating a layer of release agent in the mould and at the edge of the mould; pouring the stirred slurry into a mold, and then placing the mold on a vibration table to vibrate and compact to obtain a molded product; and fourthly, curing the molded product in a curing room with the temperature of 20-25 ℃ and the relative humidity of 55-65%, demolding after 24 hours, continuing curing, and polishing the surface to be smooth after drying.
The control group of inorganic artificial stone comprises the following components: 27 parts of quartz sand, 2.2 parts of quartz powder, 11 parts of portland cement, 0.5 part of metakaolin, 1.26 parts of silica fume, 0.5 part of water reducing agent and 0.9 part of water as inorganic active additives.
The magnesium oxysulfate cement slurry is prepared from light-burned magnesium oxide powder, magnesium sulfate heptahydrate solution and a modifier; the preparation method comprises the following steps: dissolving magnesium sulfate heptahydrate in water to prepare MgSO with mass concentration of 38%4Adding citric acid into the solution until the citric acid is completely dissolved in MgSO4After the solution is dissolved, light-burned magnesia powder is added to prepare magnesia-sulfur cement slurry. The mass ratio of the citric acid to the light-burned magnesia powder is 1: 100; light-burned magnesia powder and MgSO4The mass ratio of the solution is 1: 1.8.
The test shows that the bending strength of the inorganic artificial stone prepared by the embodiment is 30MPa, and the compression strength is 100 MPa. The bending strength of the control group is 20MPa
Example 2. the high-strength bending-resistant inorganic artificial stone of this example comprises, by mass, 125 parts of magnesium oxysulfate cement slurry, 45 parts of cullet having a particle size of 30 meshes, 15 parts of marble scraps having a particle size of 100 meshes, 45 parts of basalt stone having a particle size of 60 meshes, 2 parts of iron oxide, 5 parts of glass fiber, 2 parts of naphthalene water reducing agent, 2 parts of acrylic copolymer, 0.3 part of hydroxypropyl methyl cellulose, and 4 parts of silica fume.
The preparation method comprises the following steps: the cement mortar comprises, by mass, 125 parts of magnesium oxysulfate cement slurry, 45 parts of cullet with the particle size of 30 meshes, 15 parts of marble leftover with the particle size of 100 meshes, 45 parts of basalt stone with the particle size of 60 meshes, 2 parts of iron oxide, 5 parts of glass fiber, 2 parts of naphthalene water reducer, 2 parts of acrylic copolymer, 0.3 part of hydroxypropyl methyl cellulose and 4 parts of silica fume as raw materials; secondly, mixing the raw materials weighed in the first step and uniformly stirring the raw materials to form slurry for later use; thirdly, placing the mould on a workbench, and coating a layer of release agent in the mould and at the edge of the mould; pouring the stirred slurry into a mold, and then placing the mold on a vibration table to vibrate and compact to obtain a molded product; and fourthly, curing the molded product in a curing room with the temperature of 20-25 ℃ and the relative humidity of 55-65%, demolding after 24 hours, continuing curing, and polishing the surface to be smooth after drying.
The magnesium oxysulfate cement slurry is prepared from light-burned magnesium oxide powder, a magnesium sulfate heptahydrate solution and a modifier; the preparation method comprises the following steps: dissolving magnesium sulfate heptahydrate in water to prepare MgSO with mass concentration of 38%4Adding modifier into the solution until the modifier is completely dissolved in MgSO4After the solution is dissolved, light-burned magnesia powder is added to prepare magnesia-sulfur cement slurry. The mass ratio of the modifier to the light-burned magnesia powder is 3:100, and the modifier is a mixture of citric acid and oxalic acid which are mixed according to any ratio. Light-burned magnesia powder and MgSO4The mass ratio of the solution is 1: 1.4.
The test shows that the bending strength of the inorganic artificial stone prepared by the embodiment is 28MPa, and the compression strength is 102 MPa.
Example 3 this example includes 135 parts of magnesium oxysulfate cement paste, 50 parts of cullet with a particle size of 30 meshes, 20 parts of marble leftover with a particle size of 100 meshes, 50 parts of basalt stone with a particle size of 60 meshes, 3 parts of iron oxide, 3 parts of glass fiber, 2 parts of naphthalene water reducer, 2 parts of acrylic copolymer, 0.3 part of hydroxypropyl methyl cellulose, and 5 parts of silica fume by mass.
The preparation method comprises the following steps: the material comprises 135 parts of magnesium oxysulfate cement slurry, 50 parts of crushed glass with the particle size of 30 meshes, 20 parts of marble leftover with the particle size of 100 meshes, 50 parts of basalt stone with the particle size of 60 meshes, 3 parts of ferric oxide, 3 parts of glass fiber, 2 parts of naphthalene water reducer, 1 part of citric acid, 2 parts of acrylic copolymer, 0.3 part of hydroxypropyl methyl cellulose and 5 parts of silica fume by weight; secondly, mixing the raw materials weighed in the first step and uniformly stirring the raw materials to form slurry for later use; thirdly, placing the mould on a workbench, and coating a layer of release agent in the mould and at the edge of the mould; pouring the stirred slurry into a mold, and then placing the mold on a vibration table to vibrate and compact to obtain a molded product; and fourthly, curing the molded product in a curing room with the temperature of 20-25 ℃ and the relative humidity of 55-65%, demolding after 24 hours, continuing curing, and polishing the surface to be smooth after drying.
The magnesium oxysulfate cement slurry is prepared from light-burned magnesium oxide powder, magnesium sulfate heptahydrate solution and a modifier; the preparation method comprises the following steps: dissolving magnesium sulfate heptahydrate in water to prepare MgSO with mass concentration of 38%4Adding modifier into the solution until the modifier is completely dissolved in MgSO4After the solution is dissolved, light-burned magnesia powder is added to prepare magnesia-sulfur cement slurry. The mass ratio of the modifier to the light-burned magnesia powder is 1:100, and the light-burned magnesia powder and MgSO4The mass ratio of the solution is 1: 1.8; the modifier is a mixture of citric acid and aluminum sulfate mixed according to any ratio.
The test shows that the bending strength of the inorganic artificial stone prepared by the embodiment is 24MPa, and the compression strength is 118 MPa.
In conclusion, the artificial stone achieves the purposes of higher strength and better bending resistance by setting the proportion of the raw materials, the adhesive and the additive.
Claims (10)
1. The high-strength bending-resistant inorganic artificial stone is characterized by comprising 135 parts of magnesium oxysulfate cement slurry, 40-50 parts of broken glass, 10-20 parts of stone leftover materials, 40-50 parts of basalt stones, 1-3 parts of pigments, 3-10 parts of glass fibers, 1-2 parts of water reducing agents, 1-2 parts of redispersible latex powder, 0.1-0.3 part of cellulose ether and 3-5 parts of silica fume by mass.
2. The inorganic artificial stone with high strength and bending resistance as claimed in claim 1, wherein the magnesium oxysulfate cement slurry is prepared from light-burned magnesia powder, magnesium sulfate heptahydrate solution and modifier; the preparation method comprises the following steps: dissolving magnesium sulfate heptahydrate in water to prepare MgSO with mass concentration of 34-38%4Adding modifier until the modifier is completely dissolved in MgSO4After the solution is dissolved, adding light-burned magnesia powder to prepare magnesia-sulfur cement slurry.
3. The artificial stone with high strength and bending resistance as claimed in claim 2, wherein the mass ratio of the modifier to the light-burned magnesia powder is (1-3): 100; light-burned magnesia powder and MgSO4The mass ratio of the solution is 1 (1.4-1.8).
4. A highly bending-resistant inorganic artificial stone according to claim 2 or 3, wherein the modifier is a mixture of one or more of citric acid, tartaric acid, oxalic acid, aluminum sulfate and alum in any ratio.
5. A high-strength bending-resistant inorganic artificial stone according to claim 1, wherein the particle size of the cullet is 20-40 mesh; the particle size of the basalt stone is 40-80 meshes.
6. A highly bending-resistant inorganic artificial stone according to claim 1, wherein the stone scraps are marble scraps having a particle size of 80 to 120 mesh.
7. A high-strength bending-resistant inorganic artificial stone according to claim 1, wherein the pigment is an inorganic pigment.
8. The artificial stone according to claim 7, wherein the inorganic pigment is titanium dioxide or iron oxide.
9. The artificial stone of claim 1, wherein the redispersible latex powder is a mixture of one or more of ethylene/vinyl acetate copolymer, vinyl acetate/vinyl versatate copolymer, and acrylic acid copolymer at any ratio.
10. A high strength bending resistant inorganic artificial stone according to claim 1, wherein the cellulose ether is hydroxypropyl methylcellulose; the water reducing agent is a naphthalene water reducing agent.
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EP4137470A1 (en) * | 2021-08-18 | 2023-02-22 | Wanner, Hangama | Process for manufacturing synthetic stones and such stones as products |
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EP4137470A1 (en) * | 2021-08-18 | 2023-02-22 | Wanner, Hangama | Process for manufacturing synthetic stones and such stones as products |
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