KR20080100408A - Copmosite marble plate and manufacturing method thereof - Google Patents

Copmosite marble plate and manufacturing method thereof Download PDF

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Publication number
KR20080100408A
KR20080100408A KR1020080105078A KR20080105078A KR20080100408A KR 20080100408 A KR20080100408 A KR 20080100408A KR 1020080105078 A KR1020080105078 A KR 1020080105078A KR 20080105078 A KR20080105078 A KR 20080105078A KR 20080100408 A KR20080100408 A KR 20080100408A
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KR
South Korea
Prior art keywords
plate
fiber
reinforced cement
marble
natural marble
Prior art date
Application number
KR1020080105078A
Other languages
Korean (ko)
Inventor
김원택
Original Assignee
수연도시개발(주)
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 수연도시개발(주) filed Critical 수연도시개발(주)
Priority to KR1020080105078A priority Critical patent/KR20080100408A/en
Publication of KR20080100408A publication Critical patent/KR20080100408A/en

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    • 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
    • B28B1/008—Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
    • 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
    • C04B14/06—Quartz; Sand
    • C04B14/066—Precipitated or pyrogenic silica
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)

Abstract

The present invention relates to a composite marble plate and a method for manufacturing the same, which can improve the adhesion to a building structure while reducing the cost of materials and improves the construction by allowing the natural marble to be made thin, compact.

Composite marble plate of the present invention is a natural marble plate of a predetermined shape, Portland cement formed on one side of the natural marble plate, a fiber-reinforced cement plate containing cellulose fibers and an adhesive for attaching the natural marble plate and fiber-reinforced cement plate There are technical features to include.

Description

Composite marble plate and manufacturing method thereof

The present invention relates to a composite marble plate, and more particularly, fiber reinforcement containing a natural marble plate of a predetermined shape that can be used as an interior or exterior material of a building, portland cement formed on one side of the natural marble plate, and cellulose fibers. The present invention relates to a composite marble plate comprising an adhesive for bonding a cement plate and a natural marble plate and a fiber reinforced cement plate.

Recently, with the improvement of living standards, it is becoming common to use natural marble instead of artificial marble in department stores, apartments, and public buildings.

Such natural marble shows the interior and exterior of the building elegantly and gorgeously, but the material cost is much higher than that of artificial marble, and construction is inconvenient due to the size and thickness of the natural marble.

In the method of using natural marble as an interior and exterior material of a building, after processing in the form of a plate, after completion of the concrete structure, a method of fixing by using a fixing piece at a certain distance from the structure and attaching it in direct contact with the structure. There is this.

The method of fixing the natural marble plate at a certain distance from the concrete structure does not work in terms of space utilization, and the length of the long side of the natural marble plate is about 1m long, which causes great inconvenience in construction.

The method of attaching natural marble boards in direct contact with the concrete structure is advantageous in terms of space utilization, but it is also difficult to cut the natural marble sheets thinly (by using 25mm thick marble), which requires a lot of material cost and makes the natural marble plates small. It is hard to make it, and there exists a big inconvenience at the time of construction.

The present invention devised to solve the problems of the prior art as described above combines a fiber reinforced cement plate with excellent water absorption rate and durability with natural marble plate and excellent adhesion to cement mortar while thin and compact natural marble plate The purpose is to provide a composite marble plate and a method of manufacturing the same that can significantly reduce the material cost and greatly increase the convenience in construction.

The above object of the present invention is achieved by a composite marble plate comprising a natural marble plate of a predetermined shape and a fiber reinforced cement plate containing portland cement, cellulose fibers formed on one side of the natural marble plate.

In addition, the composite marble plate of the present invention may further include an adhesive between the natural marble plate and the fiber reinforced cement plate.

In addition, the fiber-reinforced cement board of the present invention may further comprise a silica sand powder.

In addition, the fiber-reinforced cement board of the present invention may further include concave-convex for reinforcing adhesion to the building structure on the opposite side to which the natural marble plate is attached.

In addition, the thickness of the natural marble plate of the present invention is preferably 1mm to 6mm.

In addition, the thickness of the fiber-reinforced cement board of the present invention is preferably 2mm to 15mm.

Moreover, it is preferable that the water absorption of the fiber reinforced cement board of this invention is 20%-40%.

In addition, another object of the present invention is to prepare a natural marble having at least one side of the flat surface, the step of attaching a fiber-reinforced cement board containing portland cement, cellulose fibers on the flat one side of the natural marble and the fiber-reinforced cement board It is achieved by a composite marble plate manufacturing method comprising the step of cutting the attached natural marble into a plate.

In addition, the method of manufacturing a composite marble plate of the present invention preferably further comprises the step of attaching an adhesive to the flat one side of the natural marble before the step of attaching the fiber reinforced cement plate.

Therefore, the composite marble plate of the present invention can produce a natural marble plate thin and small by attaching a fiber-reinforced cement plate to the natural marble can greatly reduce the material cost and greatly increase the convenience of construction.

Moreover, by using the fiber reinforced cement board containing a cellulose fiber, the composite marble board which is thin, small, and excellent in strength can be provided.

In addition, by using a fiber-reinforced cement board having excellent water absorption rate, the adhesion with the building structure is greatly improved, thereby preventing the lifting and peeling of the natural marble plate.

The terms or words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a composite marble plate according to the present invention.

As shown in FIG. 1, the composite marble plate according to the present invention is composed of a natural marble plate 110, an adhesive 120, and a fiber reinforced cement plate 130.

The thickness T 1 of the natural marble plate 110 according to the present invention is preferably about 1 mm to about 6 mm, and the thickness T 3 of the fiber reinforced cement plate 130 is about 2 mm to about 15 mm.

The natural marble plate when directly attached to the surface of the building structure has a thickness of approximately 25mm, the present invention can significantly reduce the material cost by significantly reducing the thickness of such a natural marble plate.

The adhesive 120 may use an adhesive made of a urethane resin, an epoxy resin, a phenol resin, an acrylic resin, and the like, but is not limited thereto.

In addition, the adhesive 120 may not be present, which will be described together with the method of manufacturing a composite marble plate according to the present invention.

Fiber-reinforced cement board 130 is a cement board containing portland cement, cellulose fibers, the water content is 20% to 40% based on the test method of KS L 5114: 2003, although there is no big limitation on its components It is desirable to be.

This is because the water absorption rate should be good so that the adhesion to cement mortar, which is the surface of the actual building structure, is good, so that no lifting or peeling occurs after construction.

 Portland cement is preferably 20 ~ 70wt%, cellulose fiber 1 ~ 8wt%, and may also contain 20 to 60wt% silica powder and various additives.

In general, cement material is strong in compression but weak in tension. Cement composite material is in a state where tensile force is applied immediately after casting and cracking occurs due to tensile force due to temperature change. Is used.

Cellulose fibers are hydrophilic due to the presence of hydroxyl groups, which increases the adhesion of cement mortar to building structures. In the present invention, this property of the cellulose fiber is considered.

However, if the ratio of the cellulose fiber is too high, the molding of the fiber-reinforced cement board is not made properly, it is preferable to include 10wt% or less, preferably 0.5 to 8wt%.

Bleached graft pulp (NBKP), unbleached graft pulp (NKP), regenerated pulp, and the like may be used as the cellulose fibers. Dry pulp may be used as a cellulose short fiber.

Silica powder is cheaper than Portland cement, but reacts with the gypsum of cement upon autoclave curing to form a calcium silicate hydrate similar to the cement matrix.

In addition, a small amount (up to 10 wt%) of additives such as sepiolite and mica may be added in consideration of flame retardancy, bending strength, volume specific gravity, and length change due to absorption.

These fiber reinforced cement boards are manufactured by autoclaving curing process with Portland cement, cellulose fiber, silica powder and other additives and water.

2 is a perspective view of a composite marble plate according to another embodiment of the present invention.

As shown in Figure 2, the surface of the fiber-reinforced cement plate in contact with the building structure, that is, the surface opposite to the surface attached to the natural marble plate additionally formed various irregularities (130a, 130b) to improve the adhesion with the building structure It can be shown.

For example, the irregularities of various shapes such as hemispherical, pyramidal, hexahedral, honeycomb, etc. may be formed to protrude from the fiber-reinforced cement board 130 or to be recessed.

When the protrusion is formed to protrude into the cement mortar of the building structure, when the recess is formed, the cement mortar of the building structure is hardened after filling the recessed portion to improve the adhesion to the building structure.

3 is a flow chart illustrating a method of manufacturing a composite marble plate according to the present invention.

As shown in Figure 3, in order to manufacture a composite marble plate according to the present invention first prepare a natural marble with at least one side is flat (S110).

Next, apply an adhesive to the flat one side of the natural marble (S120). As the adhesive, an adhesive made of a urethane resin, an epoxy resin, a phenol resin, an acrylic resin, or the like may be used, but is not limited thereto.

Next, attach the fiber-reinforced cement board prepared in advance by an extrusion method or the like on one flat side of the natural marble with an adhesive (S130). Of course, it is also possible to bond the flat one side of the natural marble plate and the fiber-reinforced cement plate after applying the adhesive to the fiber-reinforced cement board without applying the flat one side of the natural marble.

Fiber-reinforced cement board is produced in a high density, high strength through a high-pressure autoclave curing process of about 10,000 tons, the components of the fiber-reinforced cement board are described in detail above, and will be omitted. While attaching the fiber-reinforced cement board, it is possible to apply pressure or raise the temperature, and it is also possible to carry out both pressure and temperature increase at the same time.

Finally, by cutting the natural marble with a fiber-reinforced cement plate to a predetermined thickness to complete the composite marble plate (S140).

For cutting natural marble, rock cutting saws and the like can be used. On the other hand, in this case, since the fiber-reinforced cement plate is attached to one side of the natural marble, even if the natural marble is cut thinly to about 1 mm to 6 mm, the marble plate hardly breaks or cracks.

In addition, since the natural marble can be made of a thin sheet, the material cost can be significantly reduced, and miniaturization can be achieved, thereby improving construction convenience.

Afterwards, the composite marble plate is attached to the building structure. Due to the excellent water absorption rate of the fiber reinforced cement board, it has excellent adhesive strength with the building structure and cement mortar, and the strength of the fiber reinforced cement board is excellent. Do.

In addition, despite the excellent water absorption rate, the length change rate due to water absorption is 0.2% or less, so that the length change due to water absorption hardly occurs.

On the other hand, unlike shown in Figure 3, the composite marble plate of the present invention by a method of solidifying after attaching the fiber-reinforced cement material to the natural marble by attaching the fiber-reinforced cement board to the natural marble in advance using an adhesive. Manufacturing is possible.

Table 1 compares the case where the polishing tile is attached instead of the fiber reinforced cement board to test the effect of the composite marble plate of the present invention.

 Specifically, a case of attaching a 4 mm thick natural marble plate to a 12 mm thick polished tile and a 5 mm thick fiber reinforced cement plate attached to a 12 mm thick fiber reinforced cement board (Table 1 shows the water absorption rate Results of the test method of KS L 5114: 2003.

Table 1 Comparison of Polishing Tiles and Fiber Reinforced Cement Plates

When Polishing Tile is Attached When fiber reinforced cement board is attached Water absorption 0.3% 30% Material cost (per m 2 ) 45,000 won 38,000 won Construction cost (per m 2 ) 28,000 won 15,000 won Lifting or peeling With Nil

As can be seen in Table 1, it is possible to cut thin even if the natural marble is cut after attaching the polishing tile, but since the adhesive force with the building structure is reduced, the lifting or peeling phenomenon occurs, so it is insufficient for practical use.

In other words, it is expected to save about 25% of material cost and construction cost when attaching and cutting a fiber reinforced cement board rather than cutting a natural marble by cutting a polished tile on a natural marble board. Excellent adhesion with mortar, no lifting or peeling after construction.

Although the present invention has been shown and described with reference to the preferred embodiments as described above, it is not limited to the above embodiments and those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.

The present invention provides a composite marble plate comprising a natural marble plate having a predetermined shape and a fiber reinforced cement plate containing cellulose fibers and portland cement formed on one side of the natural marble plate, as well as interior and exterior materials of the building. It can be used for interior finishing materials.

1 is a perspective view of a composite marble plate according to the present invention.

2 is a perspective view of a composite marble plate according to another embodiment of the present invention.

3 is a flowchart showing a method for manufacturing a composite marble plate according to the present invention.

<Explanation of symbols for the main parts of the drawings>

110: natural marble plate 120: adhesive

130: fiber reinforced cement board

130a, 130b: irregularities

Claims (12)

Natural marble plate of a predetermined shape; And Portland cement formed on one side of the natural marble plate, fiber reinforced cement plate containing cellulose fibers Composite marble plate comprising a. The method of claim 1, Composite marble plate further comprises an adhesive between the natural marble plate and the fiber-reinforced cement plate. The method according to claim 1 or 2, The fiber-reinforced cement plate further comprises a silica powder composite marble plate. The method of claim 3, The fiber-reinforced cement plate further comprises a concave-convex for reinforcing adhesion to the building structure on the opposite side to which the natural marble plate is attached. The method of claim 3, The thickness of the natural marble plate is a composite marble plate of 1mm to 6mm. The method of claim 5, The fiber-reinforced cement plate is a composite marble plate of 2mm to 15mm in thickness. The method of claim 6, The water absorption of the fiber-reinforced cement plate is 20% to 40% composite marble plate. Preparing a natural marble having at least one side flat; Attaching a fiber reinforced cement board containing portland cement and cellulose fibers to one flat side of the natural marble; And Composite marble plate manufacturing method comprising the step of cutting the natural marble attached to the fiber-reinforced cement plate into a plate shape. The method of claim 8, The method of manufacturing a composite marble plate further comprising the step of attaching an adhesive to the flat one side of the natural marble prior to the step of attaching the fiber reinforced cement plate. The method according to claim 8 or 9, The fiber-reinforced cement plate is a composite marble plate manufacturing method characterized in that the irregularities are present on the opposite side of the surface attached to the natural marble. The method according to claim 8 or 9, The thickness of the cut natural marble plate is a composite marble plate manufacturing method of 1mm to 6mm. The method of claim 11, The fiber-reinforced cement plate further comprises a silica powder composite marble plate manufacturing method.
KR1020080105078A 2008-10-27 2008-10-27 Copmosite marble plate and manufacturing method thereof KR20080100408A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101227987B1 (en) * 2010-07-14 2013-02-01 주식회사 정일 Method for producing a mixed material slab and a mixed material slab prouduced by the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101227987B1 (en) * 2010-07-14 2013-02-01 주식회사 정일 Method for producing a mixed material slab and a mixed material slab prouduced by the method

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