WO2012023825A2 - Paste composition for artificial marble and method of manufacturing artificial marble using the same - Google Patents

Paste composition for artificial marble and method of manufacturing artificial marble using the same Download PDF

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Publication number
WO2012023825A2
WO2012023825A2 PCT/KR2011/006114 KR2011006114W WO2012023825A2 WO 2012023825 A2 WO2012023825 A2 WO 2012023825A2 KR 2011006114 W KR2011006114 W KR 2011006114W WO 2012023825 A2 WO2012023825 A2 WO 2012023825A2
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Prior art keywords
weight
parts
artificial marble
paste
inorganic material
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PCT/KR2011/006114
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French (fr)
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WO2012023825A3 (en
Inventor
Chang Hwan Park
Jeong Ho Jeong
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Lg Hausys, Ltd.
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Publication date
Application filed by Lg Hausys, Ltd. filed Critical Lg Hausys, Ltd.
Priority to EP11818425.8A priority Critical patent/EP2606014A4/en
Priority to CN2011800397839A priority patent/CN103068769A/en
Priority to JP2013524798A priority patent/JP2013534206A/en
Priority to US13/814,388 priority patent/US20130168891A1/en
Publication of WO2012023825A2 publication Critical patent/WO2012023825A2/en
Publication of WO2012023825A3 publication Critical patent/WO2012023825A3/en

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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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/041—Aluminium silicates other than clay
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/005—Devices or processes for obtaining articles having a marble appearance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/082—Producing shaped prefabricated articles from the material by vibrating or jolting combined with a vacuum, e.g. for moisture extraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245—Curing concrete articles
    • 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
    • C04B28/04—Portland 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
    • 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
    • C04B28/18—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 mixtures of the silica-lime type
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/21—Efflorescence resistance
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/54—Substitutes for natural stone, artistic materials or the like
    • C04B2111/542—Artificial natural stone
    • C04B2111/545—Artificial marble
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/80—Optical properties, e.g. transparency or reflexibility
    • C04B2111/802—White cement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

The present invention relates to a paste compsotion for artificial marble and a method of manufacturing the artificial marble using the same, which can solve the problems of efflorescence and durability in the existing cementitious marble and the problems of thermal resistance and acid tolerance in the existing organic binder-based marble, and can provide an insulating function to the artificial marble by using an inorganic binder such as an amorphous activated aluminosilicate compound and also using a lightweight particulate porous inorganic material. The method of manufacturing the artificial marble includes preparing paste for artificial marble by mixing 10~20 parts by weight of white cement, 3~10 parts by weight of amorphous activated aluminosilicate, 40~70 parts by weight of broken-stone chip, 5~10 parts by weight of water, 0.1~1 part by weight of water-reducing agent and 10~30 parts by weight of lightweight particulate porous inorganic material; pouring and vibration-molding the paste in a mold; curing the paste; inducing a hydrothermal reaction of cured artificial marble at high temperature and high pressure; and machining cured product.

Description

PASTE COMPOSITION FOR ARTIFICIAL MARBLE AND METHOD OF MANUFACTURING ARTIFICIAL MARBLE USING THE SAME
The present invention relates to a paste composition for manufacturing artificial marble which is used as a structural exterior or interior material, and a method of manufacturing the artificial marble using the same, and more particularily, to a paste compsotion for artificial marble and a method of manufacturing the artificial marble using the same, which can solve problems of efflorescence and durability in existing cementitious marble and problems of thermal resistance and acid tolerance in existing organic binder-based marble using an inorganic binder such as an amorphous activated aluminosilicate compound.
Artificial stone contrasted with natural stone means artificially manufactured stone. The artificial stone such as artificial marble and artificial granite is maintly used as a structural exterior or interior material.
The most representative artificial stone is cementitious artificial stone. The cementitious artificial stone is manufactured with a low price and typically used as a structrual interior material. However, the cementitious artificial stone has a disadvantage in that its durability is deteriorated according to a change in temperature.
Further, in the cementitious artificial stone, a soluble alkaline compound or calcium hydroxide component which is generaetd by a hydration reaction when curing the cement is extracted through pores to a surface of the artificial stone by a capillary phenomenon, or reacted with carbon dioxide in the air so that insoluble calcium carbonate is generated and thus efflorescence occurs. Therefore, in case that the cementitious artificial stone is used as the structural exterior material for a long time period, the appearance may be damaged seriously. Thus, the use of the cementitious artificial stone as the structural exterior material has been generally rejected.
In addition, in order to restrain the efflorescence which is the problem in the cementitious artificial stone, there has been proposed organic binder-based artificial stone in which a part of cement is substituted with an organic polymer. However, in case of the organic binder-based artificial stone, it has some problems in thermal resistance, acid tolerance and surface hardness, and thus it cannot be still used as the structural exterior material.
An object of the present invention is to provide a paste compsotion for artificial marble and a method of manufacturing the artificial marble using the same, which can solve the problems of efflorescence and durability in the existing cementitious marble and the problems of thermal resistance and acid tolerance in the existing organic binder-based marble, and can provide an insulating function to the artificial marble by using an inorganic binder such as an amorphous activated aluminosilicate compound and also using a lightweight particulate porous inorganic material.
To achieve the object of the present invention, the present invention provides a paste composition for manufacturing artificial marble, which is composed of 10~20 parts by weight of white cement, 3~10 parts by weight of amorphous activated aluminosilicate, 40~70 parts by weight of broken-stone chip, 5~10 parts by weight of water, 0.1~1 part by weight of water-reducing agent and 10~30 parts by weight of lightweight particulate porous inorganic material.
Further, the present invention provides a method of manufacturing the artificial marble includes preparing paste for artificial marble by mixing 10~20 parts by weight of white cement, 3~10 parts by weight of amorphous activated aluminosilicate, 40~70 parts by weight of broken-stone chip, 5~10 parts by weight of water, 0.1~1 part by weight of water-reducing agent and 10~30 parts by weight of lightweight particulate porous inorganic material; pouring and vibration-molding the paste in a mold; curing the paste; inducing a hydrothermal reaction of cured artificial marble at high temperature and high pressure; and machining cured product.
According to the present invention, it is possible to prevent the efflorescencethe efflorescence by using the inorganic binder such as amorphous activated aluminosilicate. Further, since the lightweight particulate foram inorganic material having the low specific gravity is applied when performing the vibration molding process, the lightweight particulate foram inorganic material floats to the upper side and forms a desired layer, thereby providing the insulating function.
The above and other objects, fretures and advantages of the present invention will becom apparaent from the following description of preferred embodiments given in conjunction with the accompany drawings, in which:
Fig. 1 is a flow chart shwoing a method of manufacturing artificial marble according to the present invention.
Fig. 2 is a view showing a comparative example of artificial marble in which an amorphous activated aluminosilicate compound and a lightweight particulate porous inorganic material are not used.
Fig. 3 is a view shownig two layers in which broken-stone chip having a high specific gravity sinks to a bottom of the mold and lightweight particulate porous inorganic material chip having a low specific gravity floats to a surface of the mold.
Hereinafter, the embodiments of the present invention will be described in detail.
A paste compsotion for artificial marble of the present invention is composed of white cement, amorphous activated aluminosilicate, broken-stone chips, water, water-reducing agent, and lightweight particulate porous inorganic material.
The white cement functions as a basic binder, and 10~20 parts by weight of the white cement is added. If the content thereof is less than 10 parts by weight, the strength thereof is lowered after a hydration reaction of the cement. And if the content thereof is more than 20 parts by weight, the manufacturing cost is increased and also the efflorescence is occurred by the excess cement.
The amorphous activated aluminosilicate is used as an inorganic binder. Metakaolin, fly ash, diatomite, silica fume and the like can be used alone or in combination of two or more thereof. Preferably, 3~10 parts by wegith of the amorphous activated aluminosilicate is contained in the paste composition. If the content is less than 3 parts by weight, it is not possible to prevent the efflorescence, and also since it is impossible to effectively form an aluminosilicate polymer having a three dimensional network structure, the strength may be deteriorated. However, if the content is more than 10 parts by weight, a hardness of the artificial marble is lowered, and thus it cannot be used as a structural exterior material. The metakalon is obtained by thermally treating kaolin at a temperature of 600℃~900℃ and then activating it.
The broken-stone chip is obtained by grinding natural stone such as marble, serpentine and granite or artificial stone and contains fine powder of silica stone or natural stone. The broken-stone chip is a basic material of the artificial marble, and functions to provide a hardness to the artificial marble.
Preferably, 40~70 parts by wegith of the broken-stone chip is contained in the paste composition. If the content is less than 40 parts by weight, a hardness of the artificial marble is deteriorated and thus the artificial marble cannot be used as the structural exterior material. Further, since the aggregate is not appeared externally, it is not possible to provide fine appearance. If the content is more than 70 parts by weight, a relative content of the inorganic binder is lowered, and thus the strength of the artificial marble is deteriorated. And when mixing with other materials for the paste composition, workability is also deteriorated.
As the lightweight particulate porous inorganic material (having a diameter of 0.2~1mm), foam glass of low specific gravity is used to obtain insulation effect. Herein, it is further advantageous in providing of the insulation effect that the specific gravity is 0.3~0.8, preferably 0.3~0.5. A content of the lightweight particulate porous inorganic material is 10~30 parts by weight. If the content is less than 10 parts by weight, the insulation effect is insignificant, and if the conten is more than 30 parts by weight, there is a problem in mixing.
In order to achieve an extent of the above-mentioned specific gravity, it is preferable that the glass foaming is performed at a temperature of 700~800℃. If the glass foaming is performed at a temperature of 800℃ or more, the specific gravity is increased, and thus it is not preferable.
5~10 parts by wegith of water is used, and various water-reducing agents can be used, such as naphthalene-based, melamine-based and polycarboxylic acid-based water-reducing agent, but the present invention is not limited to these. The polycarboxylic acid-based water-reducing agent is mainly used. Preferably, a content of the water-reducing agent is 0.1~1 part by weight.
For the paste mixed with the above-mentioned materials, various reactions such as a dissolution reaction of aluminosilicate, a polymerization reaction by recombination of aluminosilicate, and a coupling reaction of calcium with silicate are performed simultaneously or in order according to reaction conditions and composition ratios. In the dissolution reaction of aluminosilicate, Aluminium ions and silicon ions on a surface of the amorphous activated aluminosilicate compound such as metakaolin and fly ash are dissolved in a strong alkali solution, and thus tetrahedral aluminate(AlO4), silicate(SiO4) and oligosialate formed by coupling aluminate and silicate are formed.
The ions formed by the dissolution reaction of aluminosilicate form polysialate through a polymerization reaction which is a recombination reaction of oligosialate under an alkaline catalyst condition. The polymerization reaction of oligosialate forms a monomer such as Si-O-Al-O-, Si-O-Al-O-Si-O- and Si-O-Al-O-Si-O-Si-O- according to the composition ratios of aluminium ions and silicon ions and the reaction conditions, and thus forms a polymer type high strength structure having the three dimensional network structure.
Because the aluminosilicate polymer has the three dimensional network structure, it has structural stability at a high temperature. Further, since it has an accelerated early strength development, it is possible to reduce the manufacturing time. Furthermore, the aluminosilicate polymer is cured at a low temperature and it leads to low energy consumption. In addition, since it is formed of mineral materials, it can be used as an eco-friendly material.
Meanwhile, some ions of the silicate dissolved in the aluminosilicate is reacted with calcium hydroxide to form calcium silicate hydrate. Also, the ions form a crystalline material such as tobermorite or a semi-crystalline material.
Therefore, according to the paste composition of the present invention, it is possible to increase the content of aluminosilicate as the inorganic binder and also to reduce the porosity, and thus it is possible to achieve the properties of high strength and watertightness.
The paste mixed with the above-mentioned ratio passes through pouring and vibration molding processes in a mold, a curing process, a hydrothermal reaction process and a machining process in order to manufacture the artificial marble.
In other word, 10~20 parts by weight of white cement, 3~10 parts by weight of amorphous activated aluminosilicate, 40~70 parts by weight of broken-stone chip, 5~10 parts by weight of water, 0.1~1 part by weight of water-reducing agent and 10~30 parts by weight of lightweight particulate porous inorganic material are mixed so as to prepare the paste, and the paste is poured into the mold. The mold functions to determine a shpe of the artificial marble to be manufactured. Herein, a release material may be previously coated on an inner surface of the mold so that the artificial marble is easily separated from the mold after the curing process.
In the vibration molding process, the vibration is applied to the mold for about 30seconds ~ 3minutes at 1000~3500rpm so that the broken-stone chip having a high specific gravity sinks to a bottom of the mold and the lightweight particulate porous inorganic material chip floats to a surface of the mold due to a difference in specific gravities thereof, thereby forming two layers.
Preferably, the curing process is performed twice with a steam curing process and a high pressure and high temperature steam curing process. In the steam curing process which cures the paste for artificial marble, the paste composition is gradually hardened to form the artificial marble. The curing is performed for 12~36 hours at a temperature of 0℃~150℃ and a relative humidity of 65% or more. In the high pressure and high temperature steam curing process, the hydrothermal reaction of a molding is induced in an autoclave for 5~10 hours at a pressure of about 10 bar, thereby generating a pozzolanic reaction.
The machining proces includes a polishing process, a surface-treating process and the like. Surfaces of the molded artificial marble are properly cut and then treated by the polishing process so as to have a gloss. According to circumstances, initial staining property is maximized through the surface treating process.
Fig. 1 is a flow chart shwoing a method of manufacturing artificial marble according to the present invention, in which the method includes a step of preparing paste for the artificial marble, a pouring step, a vibration molding step, a steam curing step, a high pressure and high temperature secondary curing step, and a polishing and surface treating step.
Hereinafter, the embodiments of the present invention will be described in detail with reference to accompanying drawings. However, the present invention is not limited to embodiments to be described below.
<Embodiment>
Invention example
18.5 parts by weight of white cement, 6 parts by weight of metakaolin (Pozzolanicreactivity 950min, a size of 300Mesh or less, white), 50 parts by weight of broken-stone chip, 17 parts by weight of lightweight particulate porous inorganic material (a diameter of 0.7mm, foam glass which is calcinated at a temperature of about 800℃ so as to have a specific gravity of 0.3), 8 parts by weight of water, and 0.5 part by weight of water-reducing agent (polycarboxylic acid-based water-reducing agent) are mixed to prepare an inorganic binder. The inorganic binder is poured into a mold and then treated by a vibration molding process (3,500rpm, about 3minutes), thereby forming a molding.
When visually observing the formed molding, the broken-stone chip sinks to a bottom of the mold and lightweight particulate porous inorganic material chip having a low specific gravity floats to a surface of the mold, thereby forming two layers (referring to Fig. 3).
The molding is cured for 24 housrs at a termperature of 60℃ and a relative humidity of 98%, thereby manufacturing artificial marble. The artificial marble is secondarily cured by a hydrothermal reaction which is induced in an autoclave for 10 hours at a pressure of 10bar and a temperature of about 180℃. Then the artificial marble passes through side-cutting, polishing and surface-treating process, thereby manufacturing the artificial marble having the insulating function. The manufactured artificial marble is shown in Fig. 3.
Comparative example
24.5 parts by weight of white cement, 67 parts by weight of broken-stone chip, 8 parts by weight of water, and 0.5 part by weight of water-reducing agent are mixed to prepare an inorganic binder. The inorganic binder is poured into a mold and then treated by a vibration molding process (3,500rpm, about 3minutes), thereby forming a molding.
The molding is cured for 24 housrs at a termperature of 60℃ and a relative humidity of 98%, thereby manufacturing artificial marble. The artificial marble passes through side-cutting, polishing and surface-treating process, thereby manufacturing the artificial marble having the insulating function. The manufactured artificial marble is shown in Fig. 2.
Measurement of physical properties and Estimation
Physical properties of the manufacture artificial marble according to the invention example and the comparative example are measured with respect to three point flexural strength, heat conductivity and water absorptance, and the results thereof are indicated in table 1
*The measurement of three point flexural strength is based on KS F4035.
*The measurement of heat conductivity is based on KS L9016.
*The measurement of water absorptance is based on KS F2530.
Table 1
Flexural strength (Mpa) Heat conductivity(kcal/mh ℃) Water absorptance(%)
Comparative example 11 0.2 3.3
Invention example 15 0.06 2.1
As indicated in table 1, since the artificial marble of the invention example containing the amorphous activated aluminosilicate and lightweight particulate porous inorganic material can secure higher densification than that of the comparative example, it has a higher flexural strength and a lower absorptance. Further, as shown in Fig. 3, since the artificial marble containing the lightweight particulate porous inorganic material has a layer of the lightweight particulate porous inorganic material at one surface thereof, it is possible to reduce the heat conductivity and thus to provide the insulating function.
While the present invention has been described with respect to the specific embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
According to the present invention, it is possible to prevent the efflorescencethe efflorescence by using the inorganic binder such as amorphous activated aluminosilicate. Further, since the lightweight particulate foram inorganic material having the low specific gravity is applied when performing the vibration molding process, the lightweight particulate foram inorganic material floats to the upper side and forms a desired layer, thereby providing the insulating function.

Claims (8)

  1. A paste composition for manufacturing artificial marble, which is composed of 10~20 parts by weight of white cement, 3~10 parts by weight of amorphous activated aluminosilicate, 40~70 parts by weight of broken-stone chip, 5~10 parts by weight of water, 0.1~1 part by weight of water-reducing agent and 10~30 parts by weight of lightweight particulate porous inorganic material.
  2. The paste composition for manufacturing artificial marble according to claim 1, wherein the paste composition passes through a dissolution reaction of aluminosilicate, a polymerization reaction by recombination of aluminosilicate, and a coupling reaction of calcium with silicate.
  3. The paste composition for manufacturing artificial marble according to claim 1, wherein the amorphous activated aluminosilicate is one, or two or more selected from metakaolin, fly ash, diatomite and silica fume.
  4. The paste composition for manufacturing artificial marble according to claim 1, wherein the lightweight particulate porous inorganic material is foam glass having a low specific gravity.
  5. A method of manufacturing artificial marble, comprising:
    preparing paste for artificial marble by mixing 10~20 parts by weight of white cement, 3~10 parts by weight of amorphous activated aluminosilicate, 40~70 parts by weight of broken-stone chip, 5~10 parts by weight of water, 0.1~1 part by weight of water-reducing agent and 10~30 parts by weight of lightweight particulate porous inorganic material;
    pouring and vibration-molding the paste in a mold;
    curing the paste;
    inducing a hydrothermal reaction of cured artificial marble at high temperature and high pressure; and
    machining cured product.
  6. The method according to claim 5, wherein the vibration molding is performed in the mold for 30 seconds ~ 3 minutes at 1,000~3,500rpm so that the broken-stone chip sinks to a bottom of the mold and the lightweight particulate porous inorganic material chip having a low specific gravity floats to a surface of the mold, thereby forming two layers.
  7. The method according to claim 5, wherein the amorphous activated aluminosilicate is one, or two or more selected from metakaolin, fly ash, diatomite and silica fume.
  8. The method according to claim 5, wherein the lightweight particulate porous inorganic material is foam glass having a low specific gravity.
PCT/KR2011/006114 2010-08-19 2011-08-19 Paste composition for artificial marble and method of manufacturing artificial marble using the same WO2012023825A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP11818425.8A EP2606014A4 (en) 2010-08-19 2011-08-19 Paste composition for artificial marble and method of manufacturing artificial marble using the same
CN2011800397839A CN103068769A (en) 2010-08-19 2011-08-19 Paste composition for artificial marble and method of manufacturing artificial marble using the same
JP2013524798A JP2013534206A (en) 2010-08-19 2011-08-19 Paste composition for manufacturing artificial stone and method for manufacturing artificial stone using the same
US13/814,388 US20130168891A1 (en) 2010-08-19 2011-08-19 Paste composition for artificial marble and method of manufacturing artificial marble using the same

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KR10-2010-0080070 2010-08-19
KR1020100080070A KR101265882B1 (en) 2010-08-19 2010-08-19 Paste composition for marble and a method for manufacturing marble using thereof

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EP (1) EP2606014A4 (en)
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