JPH05124017A - Manufacture of lightweight concrete panel covered with decorative board - Google Patents

Abstract

PURPOSE:To make it possible to bond a decorative board made of stone material, large tile, large ceramic tile, natural or artificial glass, crystallized glass etc., to the surface of a lightweight concrete panel by the use of easier and surer means at a factory. CONSTITUTION:Elastic epoxy resin composition having elongation after being cured of 10-300%, which can be cured at room temperature, is applied in advance to the rear surface of a decorative board. After the composition is cured, a predetermined number of decorative boards are arranged in a specified form, following which slurry of lightweight concrete is poured into the form. After the slurry is cured, it is removed from the form and cured in an autoclave and thereafter the decorative boards are bonded integrally to the surface of a lightweight concrete panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a decorative material mainly made as an outer wall of a building by attaching a decorative plate made of stone, large tile, large porcelain plate, natural or artificial glass, crystallized glass, etc. to a lightweight concrete panel. The present invention relates to a method for manufacturing a light-weight concrete panel attached to a board.

[0002]

2. Description of the Related Art Conventionally, lightweight concrete panels obtained by high-temperature and high-pressure autoclaves (those that introduce air bubbles or those that reduce weight by using aggregates, and those that use both) have large expansion and contraction during the manufacturing process, and It has been difficult to attach a decorative plate made of stone, large tile, large porcelain plate, natural or artificial glass, crystallized glass or the like to the surface of a lightweight concrete panel by molding.

However, in recent years, attachment of a decorative plate to lightweight concrete has also been required from the viewpoint of improving the commercialability of building materials.

A conventional technique for attaching tiles to the surface of lightweight cellular concrete is Japanese Patent Laid-Open No. 156657/1983.
There is known a method for attaching tiles to foam concrete described in Japanese Patent Publication No. 1-54165 or a method for producing a lightweight cellular concrete panel for tile attachment described in Japanese Patent Publication No. 1-54165.

The method of (1) requires a number of steps and a construction period because the tile is attached to the hardened foam concrete after the tile is attached. When the tile is attached to the lightweight concrete panel by the autoclave curing used as the wall material of the building, the tile is attached. It cannot be used as a construction method.

The method (1) is a method for manufacturing a lightweight cellular concrete panel to which tiles are attached, and a polymer of an ethylenically unsaturated compound or an acrylic copolymer resin emulsion is used as an adhesive. With this method, tiles can be integrally attached to the surface of a lightweight cellular concrete panel, but since the initial adhesive strength as an adhesive and lack of durability are poor, it can be used as a wall material for buildings over a long period of 50 years or more. There was a problem that it could not be used.

[0007]

DISCLOSURE OF THE INVENTION The inventors of the present invention have made extensive studies in order to solve the above-mentioned problems of the prior art.
When attaching a decorative plate made of stone, large tile, large porcelain plate, natural or artificial glass, crystallized glass, etc. to a lightweight concrete panel obtained by autoclave curing,
Before curing in an autoclave, that is, when molding a lightweight concrete panel, its surface has an elongation after curing of 10 to 300%.
By arranging a decorative plate coated with the room temperature curable epoxy resin composition in advance, surprisingly, after autoclave curing,
The present invention has been completed by finding that a decorative plate can be integrally attached to the surface of a lightweight concrete panel without causing any problems.

The present invention is a method for facilitating the attachment of a decorative plate made of stone, large tile, large porcelain plate, natural or artificial glass, crystallized glass or the like to the surface of a lightweight concrete panel by a simpler and more reliable means in a factory. It is an object of the present invention to provide a lightweight concrete panel with a decorative plate, which is suitable as an outer wall of a building.

[0009]

[Means for Solving the Problems]

In order to solve the above problems, the present invention provides
Include hydraulic cement materials, aggregates, foaming agents and additives.
A lightweight coke obtained by mixing any raw material with water by any suitable means.
Using concrete slurry, lightweight concrete in the formwork
Pour the slurry into the hard concrete of the lightweight concrete slurry.
After demolding, it is demolded, and then autoclaved and then the above
When manufacturing cleat panels, first the elongation after curing is
10 to 300% room temperature curable elastic epoxy resin composition
Place a predetermined number of decorative plates that have been applied and cured in the specified molding frame.
Place at a specified interval and then place concrete concrete in the molding frame.
Pour rally to cure the lightweight concrete slurry
After removing from the mold, after the autoclave curing, the above decorative plate
To be attached integrally to the surface of the lightweight concrete panel
It is the one.

In the present invention, the lightweight concrete panel to which the decorative plate is attached is manufactured by curing and curing by an autoclave, and is disclosed in, for example, JP-A-49-5.
2213, JP53-18050A, JP53-36490A, JP57-129857A.
Examples thereof include lightweight concrete panels described in JP-A No. 1-208350 and JP-A No. 1-208350.

That is, in the method of the present invention, conventionally known materials can be used as the hydraulic cement material, the aggregate, the foaming agent and the additives which are the raw materials for the lightweight concrete. The method of can be adopted.

For example, as the hydraulic cement material, Portland cement, alumina cement and the like are used. As the aggregate, pearlite, styrofoam, pyrolite, silica stone powder, etc. are usually used. Conventionally known surfactants and other compounds are used as the foaming agent and additives. The lightweight concrete slurry used in the present invention can be obtained by mixing these raw materials with water by an appropriate means.

In the present invention, as a decorative plate to be attached to a lightweight concrete panel, various stone materials conventionally attached to the wall surface of a building, for example, 10 to 150 cm (vertical width) × 10 to 150 cm (horizontal width) × 2. 5 to 50 cm
Various tiles such as (thickness) size granite, for example 1.0 to 30 cm (height) x 1.0 to 30 cm (width)
Various porcelain plates such as porcelain tiles with a size of 0.7 to 1.5 cm (thickness), for example, 10 to 100 cm (vertical width) x 1
Ceramic plate with a size of 0 to 100 cm (width) x 0.1 to 50 cm (thickness), various natural or artificial glass, crystallized glass, for example, 10 to 120 cm (width) x 10 to 120c
A size of m (width) × 0.7 to 2.0 cm (thickness) or the like is used.

As for the tiles and the like, a predetermined number of tiles are usually attached to a vinyl sheet or paper in a form corresponding to the attaching interval of the tiles for convenience of construction.

The adhesive used in the present invention is a room temperature curable elastic epoxy resin composition which retains elasticity at the temperature of autoclave curing (140 to 200 ° C.) and has splice adhesion to lightweight concrete. Things are used.

The room temperature curable elastic epoxy resin composition preferably has the following components (a) to (f). (A) an epoxy resin, (b) a ketimine represented by the following formulas (1) and (2) or a dehydration reaction product of an amine compound having at least one alkoxysilyl group in one molecule and an excess amount of a carbonyl compound,

[0018]

[Chemical 1]

[0019]

[Chemical 2]

(In the above formulas (1) and (2), R
₁ , R ₂ , R ₃ and R ₄ represent hydrogen, an alkyl group having 1 to 6 carbon atoms or a phenyl group, and X represents an alkylene group having 2 to 6 carbon atoms or a non-adjacent arylene group having 6 to 12 carbon atoms. )

(C) Modified silicone resin, (d) Curing catalyst for modified silicone resin, (e) Silane compound, (f)
Splicing adhesiveness imparting agent.

As the epoxy resin of the above component (a),
For example, bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol AD type epoxy resin and the like, the above hydrogenated epoxy resin, novolac type epoxy resin, glycidyl ester type epoxy resin, urethane modified epoxy resin, nitrogen-containing epoxy resin. Epoxy resins derived from alcohols, polybutadiene,
Examples thereof include rubber-modified epoxy resins derived from NBR, terminal carboxyl group NBR, and the like, bromine-containing flame-retardant epoxy resins, alicyclic epoxy resins, etc., but are not limited to these and are generally known. Any epoxy resin can be used.

It is also possible to use a mixture of the above-mentioned epoxy resin and a mixture with a monoepoxy compound for decreasing the viscosity of the epoxy resin.

As the ketimine as the component (b), the ketimines represented by the above formulas (1) and (2) are used. Although ketimine exists stably in the absence of water, it functions as a curing agent for epoxy resin because it becomes a primary amine by water.

Examples of the ketimine represented by the above formula (1) are 1,2-ethylenebis (isopentylideneimine), 1,2-hexylenebis (isopentylideneimine), and 1,2-propylenebis (isopentyi). Redene imine), P, P'-biphenylene bis (isopentylideneimine), 1,2-ethylenebis (isopropylidene imine), 1,3-propylene bis (isopropylidene imine), P-phenylene bis (isopentylidene) Imine) and the like.

As the above component (b), in addition to ketimine,
A dehydration product of an amine compound having at least one alkoxysilyl group in one molecule and a carbonyl compound can also be used, and the explanation is as follows.

As an example of the amine compound having an alkoxysilyl group, a compound represented by the following formula (4) can be given.

[0028]

[Chemical 4]

(In the formula (4), R ⁷ and R ⁸ are the same or different and each represents an alkyl group having 1 to 4 carbon atoms,
R ⁹ is an aminoalkyl group having 1 to 4 carbon atoms, n = 0,
It means 1,2. )

Specific examples of the compound represented by the above formula (4) include γ-aminopropyltriethoxysilane and N-.
Examples thereof include aminosilanes such as (β-aminoethyl) -γ-aminopropyltrimethoxysilane and N- (β-aminoethyl) -γ-aminopropylmethyldimethoxysilane.

The carbonyl compound includes known compounds such as acetaldehyde, propionaldehyde, n-butyraldehyde, isobutyraldehyde,
Aldehydes such as diethylacetaldehyde, glyoxal and benzaldehyde, cyclic ketones such as cyclopentanone, trimethylcyclopentanone, cyclohexanone and trimethylcyclohexanone, acetone, methyl ethyl ketone, methyl propyl ketone, methyl isopropyl ketone, methyl isobutyl ketone, diethyl ketone, diketone. Aliphatic ketones such as propyl ketone, diisopropyl ketone, dibutyl ketone, and diisobutyl ketone, and a β-dicarbonyl compound represented by the following formula (5):
Examples thereof include acetylacetone, methyl acetoacetate, ethyl acetoacetate, dimethyl malonate, diethyl malonate, methylethyl malonate, and dibenzoylmethane. Of these, β-dicarbonyl compounds having an active methylene group are particularly preferable.

[0032]

Embedded image R ¹⁰ —CO—CH ₂ —CO—R ¹¹ ... (5) (In the above formula (5), R ¹⁰ and R ¹¹ are the same or different. , Respectively means an alkyl group having 1 to 16 carbon atoms, an aryl group having 6 to 12 carbon atoms or an alkoxyl group having 1 to 4 carbon atoms.)

The amount of component (b) used is 1 to 60 parts by weight, preferably 5 to 30 parts by weight, per 100 parts by weight of the epoxy resin (a).

The modified silicone resin as the component (c) is preferably a polyether polymer having a hydrolyzable silicon functional group represented by the following formula (3) at the terminal.

[0035]

[Chemical 3]

(In the above formula (3), R ⁵ has 1 carbon atom.
To 12 are monovalent hydrocarbon groups, R ⁶ is a monovalent hydrocarbon group having 1 to ⁶ carbon atoms, and n is an integer of 0 to 2. )

Specific examples of the compound represented by the above formula (3) include poly (methyldimethoxysilylethyl ether), and commercially available compounds can be used. These polyether polymers may be used alone or in combination of two or more.

The modified silicone resin (c) is preferably contained in an amount of 10 to 500 parts by weight based on 100 parts by weight of the epoxy resin (a).

As the curing catalyst for the modified silicone resin as the component (d), known organic tin compounds such as dibutyltin dilaurate, dibutyltin malate, dibutyltin diacetate, tin octylate and tin naphthenate, and lead octylate are known. One type or two or more types of silanol condensation catalysts may be used as necessary.

The amount of the component (d) curing catalyst for the modified silicone resin used is preferably 0.1 to 10 parts by weight based on 100 parts by weight of the epoxy resin (a).

The silane compound as the component (e) is preferably an aminoalkylalkoxysilane, an epoxyalkylalkoxysilane, a mercaptoalkylalkoxysilane, or a polymer thereof, which is an alkoxysilane derivative having a molecular weight of 2000 or less. More specific compounds include aminopropyltrimethoxysilane, a reaction product of aminopropyltrimethoxysilane and vinyltrimethoxysilane, and a reaction product of γ-glycidoxypropyltrimethoxysilane and aminopropyltrimethoxysilane. Etc. are exemplified, and commercially available products can also be used.

The silane compound (e) is preferably contained in an amount of 0.1 to 50 parts by weight based on 100 parts by weight of the epoxy resin (a).

The splicing adhesiveness-imparting agent of the component (f) includes at least one acryl group, methacryl group, vinyl group and epoxy group in one molecule capable of reacting with alkanolamines and active hydrogen in the alkanolamines. It is effective to use a tertiary amine compound derived from a silane compound containing a compound, triethanolamine, or an epoxy resin latent curing agent, and it is preferable to use one or more of these.

The splicing adhesiveness-imparting agent is preferably contained in an amount of 1 to 50 parts by weight based on 100 parts by weight of the epoxy resin (a).

The room temperature-curable elastic epoxy resin composition having an elongation after curing of 10 to 300%, which is used as an adhesive in the present invention, may further contain a water removing agent, a filler, an antiaging agent, an ultraviolet ray absorbing agent, if necessary. Additives such as agents, plasticizers, extenders, pigments, and resins having a slight compatibility with the epoxy resin and the modified silicone resin, solvents, and the like can be contained.
These are optionally added as needed.

When carrying out the method for manufacturing a lightweight concrete panel with a decorative plate according to the present invention, first, the lightweight concrete slurry is prepared, and the decorative plate is preliminarily set at predetermined intervals in the molding frame of the lightweight concrete panel. Then, the room temperature curable elastic epoxy resin composition prepared as described above is applied on the back surface of the decorative plate of the molding frame. In this case, the applied amount is preferably 100 to 1500 g / m ² .

Prior to applying the adhesive, between the decorative plates,
Usually, a joint forming material such as foamed polyethylene is packed. By doing so, as will be described later, it is possible to form joints between the decorative plates after demolding, but in the present invention, it is not necessary to fill the joint forming material, and in that case, a large amount of adhesive is applied between the decorative plates. When the agent is filled, the adhesive functions as a joint material on the appearance of the product.

Then, as described above, after the adhesive applied to the decorative plate is dried by touching with the finger, the lightweight concrete slurry is poured on the adhesive, that is, in the molding frame, until the mold can be demolded for a predetermined time. After curing, the mold is removed to obtain a molded product having a decorative plate attached to the surface.

After that, if the joint forming material is packed in the demolded molded product, it is removed, and the molded product is immediately cured at 140 to 200 ° C. for 6 to 10 hours to cure it. .. As a result, a lightweight concrete panel with a decorative plate, which is integrally bonded to the surface of the lightweight concrete, is manufactured.

The light-weight concrete panel with a decorative plate obtained as described above has a weight of about 0.2% from the state in which the light-weight concrete portion is heated during autoclave curing and has a large amount of water to the room temperature air-dried state. Despite the shrinkage of the decorative plate, without peeling of the decorative plate,
A decorative plate is integrally attached to the surface of the lightweight concrete panel.

It is considered that this is because the cushioning effect of the adhesive absorbs the shrinkage of the lightweight concrete there, and after shrinkage, the lightweight concrete integrally fixes the decorative plate by curing at high temperature.

It should be noted that the joints of the lightweight concrete panel with a decorative plate, in which the joints are formed by using the joint-forming material, can be filled with joints by a conventional method afterwards, but when the joints are shallow, the jointing material is used. You can give it a beautiful appearance without filling it up.

The lightweight concrete panel with a decorative plate produced by the method of the present invention is extremely suitable as an outer wall of a building.

[0054]

EXAMPLES The present invention will be described in more detail below with reference to Examples and Comparative Examples, but it goes without saying that the present invention is not limited to these Examples.

Examples 1 to 3 and Comparative Examples 1 and 2 (1) Production of room temperature curable elastic epoxy resin composition Poly (methyldimethoxysilyl ethyl ether) (bell) as a modified silicone resin at a ratio shown in Table 1 in advance. Fuchi Chemical Industry Co., Ltd., trade name MSP300 and S-901),
Bisphenol A type epoxy resin (Yukaka Shell Epoxy Co., Ltd., trade name Epicoat # 828), titanium oxide (Ishihara Sangyo Co., Ltd., trade name R680) and calcium carbonate (Nitto Koka Co., Ltd., N, N-500) and other fillers are heated under reduced pressure (80 to 1) using a high-viscosity mixing stirrer.
After stirring at 00 ° C., 10 Torr or less) and cooling to 40 ° C. or less, vinyltrimethoxysilane (manufactured by Nippon Unicar Co., Ltd., trade name A1100) was added as a dehydrating agent and stirred under reduced pressure, and as ketimine (oiled shell epoxy). (stock)
Manufactured by H-5S and a synthetic ketimine derived from γ-aminopropyltriethoxysilane and methyl isobutyl ketone), and a dioctyl phthalate dioctyl phthalate solution as a curing catalyst for a modified silicone resin (Sankoki Gosei Co., Ltd.). Manufactured by Ajinomoto Co., Inc., trade name No. 918) and an epoxy resin latent curing agent (trade name PN-23 manufactured by Ajinomoto Co., Inc.) diethanolamine and γ-methacryloxypropyltrimethoxysilane (molar ratio 1: 1). After similarly adding the 2-addition reaction product, the mixture was stirred under reduced pressure at room temperature to produce a one-component room-temperature-curable elastic epoxy resin composition. Further, triethanolamine was added as necessary to carry out.

(2) A lightweight concrete slurry was prepared by a conventional method, mainly containing a hydraulic cement material, an aggregate, a foaming agent, an additive and water. On the other hand, 60 cm (length) ×
A molding frame measuring 60 cm (width) x 10 cm (depth) is placed horizontally, and a 65 mm square tile (thickness 1
16 pieces of 2 mm, Inax Co., Ltd., trade name Agatos) are laid with a joint portion having a width of 8 mm between them, and a joint forming material (foamed polyethylene) is formed on the joint portion.
After being filled with, the adhesive of the room temperature curable epoxy resin composition shown in Table 1 was applied to the surface thereof so that the application amount was 1 kg / m ^2, and the temperature was 20 ° C. and the humidity was 65%. It was cured and cured for 1 day in a constant humidity chamber.

Next, the above lightweight concrete slurry was poured onto the tiles of the above molding form, and after curing at room temperature for 1 day, the mold was removed, and after removing the joint forming material, autoclave curing was carried out immediately. After the autoclave curing was completed, the tile was integrally attached to the surface, there was no risk of peeling of the tile, and no cracking of lightweight concrete was observed, so after further curing at room temperature for 3 days, the tile's tensile adhesive strength test Table 1 shows the results obtained by using a Kenken type adhesion tester (manufactured by Yamamoto Heavy Machinery Co., Ltd.).

[0058]

[Table 1]

(In Table 1, CF: cohesive failure of adhesive, AF: interface failure in lightweight concrete.)

As is clear from the results of Examples 1 to 3 and Comparative Examples 1 and 2 in Table 1, Examples 1 to 3 show extremely good adhesive strength, but no adhesion promoter is contained. Comparative Example 1
In cases of 2 and 2, the tensile bond strength is extremely reduced.

Examples 4 and 5 In the same manner as in Examples 1 to 3 and Comparative Examples 1 and 2, adhesive compositions were prepared according to the formulation examples shown in Table 2, and the same test was conducted, and the results are shown in Table 2. . Both Examples 4 and 5 showed extremely good adhesive strength.

Comparative Examples 3 to 5 Comparative Example 3 is an epoxy-polyamide adhesive, Comparative Example 4 is an epoxy-polysulfide adhesive (two-component room temperature curing epoxy resin), and Comparative Example 5 is a one-component modified silicone adhesive. The same test body as that of the example was prepared using the agent and the same adhesion test was carried out. The results are shown in Table 2.

However, as a compounding agent, an epoxy resin curing agent (manufactured by Fuji Kasei Kogyo Co., Ltd., trade name TOMYD # 225) is used.
X), an epoxy resin curing agent (manufactured by Toray Thiokol Co., Ltd.,
A trade name of Thiocol LP-3) and a curing accelerator (trade name of TAP manufactured by Nippon Kayaku Co., Ltd.) were used. For Comparative Examples 3 and 4, a high-viscosity mixing stirrer was used, and an epoxy resin,
Titanium oxide and calcium carbonate were previously stirred under reduced pressure at room temperature, and then epoxy resin curing agents were added and mixed, respectively, and used as adhesives. For Comparative Example 5, an adhesive composition was prepared in the same manner as in Examples 1 to 3, and the same adhesive performance test was performed.

When the modified silicone is not contained (Comparative Examples 3 to 5), the hardness becomes high, the elongation does not occur, and the deformation cannot be followed. Therefore, stress concentration occurs at the adhesive interface and the adhesiveness is insufficient. Recognize.

[0065]

[Table 2]

(In Table 2, CF: cohesive failure of adhesive, AF: interfacial failure in lightweight concrete.)

[0067]

As described above, according to the present invention, the stone material, the large tile, the large porcelain plate, the natural or artificial glass, the crystallized glass, etc. on the surface of the lightweight concrete panel can be easily and surely manufactured in the factory. A light-weight concrete panel to which a decorative plate can be attached and which is suitable as an outer wall of a building can be obtained.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location C08L 83/00 LRY 8319-4J C09J 163/00 JFP 8416-4J E04C 2/04 C 8504-2E ( 72) Inventor Kazuhiro Watanabe 2-5-2401, Asahi-cho, Soka-shi, Saitama 401

Claims (9)

[Claims] 1. A room temperature curable elastic epoxy resin composition having an elongation after curing of 10 to 300% is previously applied to the back surface of a decorative plate, and after the resin composition is cured, it is placed in a predetermined molding frame. Arranging a predetermined number of decorative plates, then pouring the lightweight concrete slurry into the molding frame, curing the lightweight concrete slurry, and then removing from the mold, and then subjecting the decorative plate to the surface of the lightweight concrete panel through autoclave curing. A method for manufacturing a lightweight concrete panel to which a decorative plate is attached, which is characterized by being attached to. 2. The method for producing a lightweight concrete panel with a decorative plate according to claim 1, wherein the room temperature curable elastic epoxy resin composition has the following components (a) to (f). (A) Epoxy resin, (b) Ketimine represented by the following formulas (1) and (2) or a dehydration reaction product of an amine compound having at least one alkoxysilyl group in one molecule and an excess amount of a carbonyl compound, [Chemical 1] [Chemical 2] (In the above formulas (1) and (2), R ₁ , R ₂ , R
₃ and R ₄ are hydrogen, an alkyl group having 1 to 6 carbon atoms or a phenyl group, and X is an alkylene group having 2 to 6 carbon atoms or a non-adjacent arylene group having 6 to 12 carbon atoms. ) (C) Modified silicone resin, (d) Curing catalyst for modified silicone resin, (e) Silane compound, (f) Splice adhesion imparting agent. 3. The modified silicone resin has the following formula (3):
3. A polyether polymer having a hydrolyzable silicon functional group at the terminal represented by
A method for producing a lightweight concrete panel with a decorative plate as described above. [Chemical 3] (In the above formula (3), R ⁵ is a monovalent hydrocarbon group having 1 to 12 carbon atoms, R ⁶ is a monovalent hydrocarbon group having 1 to ⁶ carbon atoms, and n is an integer of 0 to 2. ) 4. The decorative plate sticking according to any one of claims 1 to 3, wherein the modified silicone resin is contained in an amount of 10 to 500 parts by weight based on 100 parts by weight of the epoxy resin. Lightweight concrete panel manufacturing method. 5. The silane compound is an aminoalkylalkoxysilane, an epoxyalkylalkoxysilane, a mercaptoalkylalkoxysilane, or a polymer thereof, which is an alkoxysilane derivative having a molecular weight of 2000 or less. 5. A method for manufacturing a lightweight concrete panel with a decorative plate according to any one of items 4 to 4. 6. The epoxy resin 1 wherein the silane compound is
0.1-50 weight part is contained with respect to 00 weight part, The manufacturing method of the lightweight concrete panel with a decorative board as described in any one of Claims 1-5 characterized by the above-mentioned. 7. A silane having at least one acryl group, methacryl group, vinyl group and epoxy group in one molecule in which the splicing adhesion promoter can react with alkanolamines and active hydrogen in the alkanolamine. A tertiary amine compound derived from a compound, triethanolamine, or an epoxy resin latent curing agent, which is a method for producing a lightweight concrete panel with a decorative plate according to any one of claims 1 to 6. Method. 8. The decoration according to any one of claims 1 to 6, wherein the splicing adhesiveness-imparting agent is contained in an amount of 1 to 50 parts by weight with respect to 100 parts by weight of the epoxy resin. Manufacturing method of lightweight concrete panel with board. 9. A lightweight concrete panel with a decorative plate produced by the method according to any one of claims 1 to 8.