JP2000079617A - Production of member for civil engineering and construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a member for civil engineering and construction wherein a resin mortar layer with a new and beautiful surface which has a marble or granite tone and does not naturally exist is formed on a base such as concrete plates, slate plates, metal plates, plastic plates, foamed plastic plates, films, rubber sheets and FRP sheets. SOLUTION: A normal temp. reactive compsn. 7 contg. a methyl methacrylate compd. and/or a mortar of the methyl methacrylate compd., an org. peroxide, a curing accelerator and an oxygen barrier membrane-formable substance is provided on a base 2 and a mold member is pressed and placed thereon and after curing reaction is performed, the mold member is removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member for civil engineering and construction, and more particularly to a concrete plate, a slate plate, a metal plate, a plastic plate, a foamed plastic plate, a film,
An object of the present invention is to provide a method for manufacturing a member for civil engineering and construction in which a layer of a resin mortar having a new and beautiful surface not found in nature of marble or granite is formed on a base material such as a rubber sheet or an FRP sheet. . Civil engineering building materials are walls,
It refers to those used as surface members and structural members such as floors, ceilings, pillars, and road surfaces.

[0002]

2. Description of the Related Art The outer wall of a building or the like is the appearance of the building itself and determines the aesthetics of the building. Both the owner and the designer attach great importance to the decorativeness and aesthetics. Therefore, the surface of the concrete is not simply subjected to waterproofing, but surface finishing including decorative elements is always performed. Conventional exterior wall finishing methods include spray coating, tiled, natural stone,
There is brick upholstery. Also, beautiful scenery is emphasized in roads and plazas leading to the roads, and there is a demand for simple, durable, and excellent scenery.

[0003] Tiling, natural stone, brick, and the like are methods that have been practiced for a long time, and have excellent aesthetics and weather resistance. Therefore, these are still used at present. Furthermore, the method of applying the spraying material is devised because the above-mentioned method is expensive and time-consuming, and applies a resin mixed with aggregate to a wall surface. This has the advantage that it is inexpensive and very easy to construct. However, with a simple spraying finish, the coating film was monotonous because the coating film was seamless, and the quality was poor.

Further, for example, an aggregate mainly composed of aluminum hydroxide powder is mixed with a methyl methacrylate resin,
A method of manufacturing a single-layer sheet by molding a thick block body by heating polymerization for a long time and then cutting it (Japanese Patent Laid-Open No. 6-2187).
No. 37), a mold having a pattern is installed on a road surface, a resin mortar is buried in a gap, and after molding, the mold is removed (Japanese Patent Laid-Open No. 15484/1992). After applying, applying a glass plate from above and curing the resin, the glass plate is removed (Japanese Patent Application Laid-Open No.
3-256580).

[0005] In recent years, as a method of building a concrete building, a method of forming a formwork on site and pouring concrete into the formwork and curing it is rare.
A C plate and a PC plate are used. The ALC board refers to a lightweight cellular concrete panel which has been steam-cured at high temperature and high pressure. The PC board refers to a panel made of prestressed concrete in which steel wire is tensioned and concrete is driven in advance. These panels are inserted between steel frames or the like as walls, outer walls, or the like to form a structural member, and the gap therebetween is filled on site.

[0006] In recent years, lightweight ones have become preferred, and thin resin molded products are being used. This is either glued to the outer wall with an adhesive or fixed with bolts, and the construction is simple.

On the other hand, concrete and asphalt pavements have been used for road surfaces. However, resin pavements such as interlocking block pavements and water-permeable pavements have been used to improve landscape and functionality. Was. However, there is still a need for a material that can be easily constructed and has excellent landscape.

[0008]

The outer wall material as described above has the following disadvantages. Preference is given to a method in which natural stone is usually made into a thin plate of about 2 cm and attached to it, rather than tiles or bricks, and marble, granite, etc. are particularly excellent in beauty and most popular. . However, such natural stones are expensive, which greatly increases the cost. Therefore, the thing which imitates natural stone by the spraying method with the spraying material has been devised,
There is a remarkable difference from the natural product in its gloss, surface smoothness, etc., and it cannot be replaced very much.

When the ALC plate or the like is used as described above, the construction itself has the effect of shortening the construction period, etc.
For surface decoration, it is necessary to perform a finishing decoration process, such as spraying or attaching tiles, as in the case of the cast-in-place method.

The inventor of the present invention has conducted various experiments, such as polishing the surface after spraying with a spray material and hardening, and coating with a transparent resin, but none of them has satisfactory gloss. In other words, it is difficult to smooth the surface itself after the organic spray material has hardened.

However, a simple flat plate-like body can be easily manufactured by hand and with a simple device, but as described above, it is almost impossible to polish after curing with a resin or the like. The appearance of so-called Edo-cut natural stones could not be revealed.

The outer wall material also has the following disadvantages. For tiles and bricks, the construction time is large and the construction period is inevitably long. Also, it takes a long time to fix it with an adhesive or a bolt on site. Therefore,
There has been a long-awaited need for a member for civil engineering and construction that is aesthetically pleasing and easy to work on site.

On the other hand, in the case where a thin resin or resin mortar layer having a beautiful surface is formed on a base and which is simple and has excellent on-site workability, the strength or hardness of the base is reduced by the force applied from the environment. In some cases, the resin thin layer of the surface layer is deformed, resulting in a problem that not only the aesthetic appearance is impaired, but also the waterproof property and the like are reduced.

The production of civil engineering building members and the like using these resin mortars has been performed for a long time, and there is an artificial stone tone using natural stone as an aggregate and a resin as a binder, for example, a granite tone or a marble tone. . Epoxy resin as the resin,
Unsaturated polyester resin, methyl methacrylate resin, etc. are used.However, large and small natural stones or powders are used as aggregates to form a large block, then cut to the required thickness, and the surface is further polished. 1cm
In the following, for example, it is not suitable in terms of cost for manufacturing a product having a thickness of several mm, and its use as an outer wall material or a floor material has been significantly restricted.

Many artificial marbles use a methyl methacrylate resin having good weather resistance, and are usually produced by high-temperature polymerization using a radical polymerization catalyst. In high-temperature polymerization, oxygen that inhibits polymerization is removed by degassing under reduced pressure,
Use a small amount of a catalyst that becomes an impurity and reduces mechanical properties,
Since the reaction speed can be adjusted by setting the temperature to a high temperature, it is convenient for forming a large block body.
However, this condition is totally unsuitable for polymerization at room temperature. By cutting this large block molded body and polishing the surface, a beautiful natural stone-like artificial stone material can be obtained for the first time. Even if a thin material is polymerized at a high temperature instead of a block, it does not make sense if the cutting or polishing is necessary. For these reasons, a method of producing an artificial stone-like sheet having a beautiful surface pattern as a thin sheet without cutting or polishing is not clear.

[0016]

In view of the above situation, the present inventor has completed the manufacturing method of the present invention, and the feature thereof is that the following (1)
(2) A civil engineering building characterized by providing a room-temperature reactive composition containing (3) and an oxygen-blocking substance, pressing and placing a mold member from above, causing a curing reaction, and then removing the mold member. In a method for manufacturing a member for use. (1) Methyl methacrylate-based compound and / or methyl methacrylate-based compound mortar (2) Organic peroxide (3) Curing accelerator In the above production method, the positions of the mold member and the base material may be reversed. That is, the following (1) and (2)
(3) A room temperature reactive composition containing an oxygen-blocking substance is provided, and a substrate is pressed and placed from above the composition, and after a curing reaction, a mold member is removed. In the manufacturing method. (1) Methyl methacrylate-based compound and / or mortar of methyl methacrylate-based compound (2) Organic peroxide (3) Hardening accelerator The next invention supplies a room temperature reactive composition on a moving continuous mold member sheet. Then, after the composition is leveled in the traveling direction, the thickness of the composition is adjusted and the base sheet is laminated on the composition separately or simultaneously, and curing is performed at an ambient temperature of 0 to 40 ° C. A method for manufacturing a sheet for civil engineering and construction characterized by the following (1) and (2):
It is a sheet for civil engineering and construction characterized by comprising each layer of (3). (1) Surface layer: Mold member sheet (2) Intermediate layer: Resin mortar layer (3) Lower layer: Base sheet

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Here, the room temperature reactive composition is defined as (1) a methyl methacrylate compound and / or a mortar of methyl methacrylate compound, (2) an organic peroxide, and (3) a material for a curing accelerator. Is an essential component. The methyl methacrylate-based compound contains a methyl methacrylate monomer as an essential component, and has the following (meth) acrylic acid esters in addition to a single compound or one or more polymerizable double bonds in the molecule. Other monomers may be included. It may also contain a (meth) acrylic acid alkyl ester (co) polymer.

The (meth) acrylates include:
Specifically, methyl acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, cyclohexyl (meth) acrylate, (meth) acryl Acid 2
(Meth) acrylic acid alkyl esters such as -ethylhexyl, tetrahydrofurfuryl-2-methacrylate, lauryl (meth) acrylate, (meth) acrylic acid such as 2-hydroxyethyl (meth) acrylate and 2-hydroxypropyl (meth) acrylate; ) Acrylic acid hydroxyalkyl ester, methoxytetraethylene glycol methacrylate, ethoxytriethylene glycol methacrylate, ethoxydiethylene glycol acrylate,
alkoxy (poly) alkylene glycol (meth) acrylates such as n-butoxyethyl methacrylate, phenoxytetraethylene glycol acrylate, butoxydiethylene glycol acrylate and / or
Alternatively, an alkylphenoxy (poly) alkylene glycol (meth) acrylate is used.

As the alkyl (meth) acrylate (co) polymer, a (co) polymer of the following monomers is used. As monomers, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate,
Examples thereof include i-butyl methacrylate, t-butyl methacrylate, 2-ethylhexyl methacrylate, methyl acrylate, ethyl acrylate, and 2-ethylhexyl acrylate.

Examples of the monomer having two or more polymerizable double bonds include ethylene glycol di (meth) acrylate, 1,2-propylene glycol di (meth) acrylate, 1,3-butylene glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, diethylene glycol di (meth) acrylate, dipropylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, divinylbenzene, diallyl phthalate , Triallyl cyanurate,
Allyl (meth) acrylate, trimethylolpropane tri (meth) acrylate, pentaerythritol tetra (meth) acrylate and the like are used.

Other monomers include styrene, α
-Methylstyrene, vinyl acetate, acrylonitrile,
(Meth) acrylamide is used.

The resin mortar is a compound containing an aggregate, that is, an inorganic filler and / or an organic filler, in a methyl methacrylate compound. Examples of the inorganic filler include calcium carbonate, barium sulfate, aluminum hydroxide, and silicate. Calcium, magnesium silicate, magnesium hydroxide, aluminum silicate, magnesium oxide, calcium stearate, diatomaceous earth, gypsum, silica, magnesia, talc, glass, ceramics, feldspar, chalcopyrite, slag, feldspar, granite, carbon, quartz, asbestos, Any material such as alumina, limestone, marble, mica, obsidian, silica sand, and silica stone can be used. As the organic filler, particles of various synthetic and natural polymer substances are used.
The inorganic filler and the organic filler may be used as a mixture, or may be used as composite particles. Generally, the resin / aggregate weight ratio of the resin mortar is preferably 100 to 5/0 to 95. If the aggregate has an appropriate form and particle size distribution, a high aggregate ratio can be obtained. From the viewpoint of production, the resin mortar preferably has a structure in which the resin fills the voids between the aggregates and forms a matrix so that the resin mortar exhibits appropriate fluidity. The resin / aggregate weight ratio is more preferably 100 to 10/0 to 90. The shape of the aggregate is not limited, and a hollow body or a foam can be used.

As for the size of the particles, a powder having a size of 0.01 to 100 μm and an aggregate having a size of 100 μm to several mm can be used. Inorganic fillers that have been surface-treated with silanes, titanates, compounds and the like can also be used.

The most important point for obtaining the natural stone appearance is to mix the resin with the aggregate. Aggregate is natural stone,
It is preferable to use ceramics or the like. Mixing aggregates of different colors creates a granite or marble look. Further, a phosphorescent mineral or a phosphorescent ceramic may be used as the aggregate.

In the resin mortar, in addition to the methyl methacrylate compound and the aggregate, if necessary, a coloring agent comprising a dye or a pigment, a stabilizer such as an antioxidant or an ultraviolet absorber,
Plasticizers, colored organic polymer particles, inorganic particles, organic / inorganic fibrous materials, colored / colorless resin pieces, crushed natural products such as shells, and the like can be added. Additives used in conventional spraying materials can also be added. In addition, various animal and plant and organic / inorganic molded articles can be used for patterning.

The organic peroxide is preferably used as a radical initiator and functions as a polymerization catalyst. Peroxyester, hydroperoxide, ketone peroxide, diacyl peroxide and the like are used. Peroxide, dibenzoyl peroxide, octanoyl peroxide, p-chlorobenzoyl peroxide, t-butyl hydroperoxide, cumene hydroperoxide, methyl ethyl ketone peroxide, cyclohexane peroxide, etc. are used, but dibenzoyl peroxide is used. Most preferred. The amount added was methyl methacrylate compound 1.
It is usually used in the range of 0.5 to 10 parts by weight with respect to 00 parts by weight.

Since the polymerization rate of a methyl methacrylate compound is extremely low at room temperature, it is necessary to add a curing accelerator. As a curing accelerator, cobalt naphthenate,
A cobalt salt such as cobalt octenoate or an aromatic tertiary amine is used, and these are used alone or in combination. As the aromatic tertiary amine, N,
N-dimethylaniline, N, N-dimethyl-p-toluidine, N, N-di (hydroxyethyl) -p-toluidine, N, N-di (hydroxypropyl) -p-toluidine, N, N-di (hydroxy Ethyl) aniline and the like are used, and in particular, N, N-dimethylamino-p-toluidine,
Di (hydroxyethyl) -p-toluidine and N, N-di (hydroxypropyl) -p-toluidine are preferred.
The addition amount is in the range of 0.05 to 5 parts by weight based on 100 parts by weight of the methyl methacrylate compound.

It is preferable to add a polymerization inhibitor as a curing retarder to the room temperature reactive composition. Since the molding of the methyl methacrylate compound and / or the mortar of the methyl methacrylate compound is performed near room temperature, a curing reaction does not occur between the preparation and the molding, and a necessary molding operation must be performed. Examples of the polymerization inhibitor include hydroquinone, methylhydroquinone, 2,4-di-t-butyl-
For example, p-cresol is used. The pot life is suitably from 5 to 60 minutes.

The room-temperature reactive composition of the present invention contains an oxygen-barrier substance. This is to form a layer or film near the surface of the room-temperature reactive composition, thereby blocking oxygen in the air that traps radicals and inhibits polymerization, so as not to penetrate the cured resin system. For example, waxes such as paraffin wax and microcrystalline wax are preferably added to the methyl methacrylate-based compound in a range of 0.1 to 20 parts by weight. More preferably, it is 0.5 to 10 parts by weight. If the amount is more than 20 parts by weight, the solubility of the wax may be problematic, or the physical properties may be adversely affected. If the amount is less than 0.1 part by weight, the curing becomes unstable, which is not preferable. The melting point of the wax is preferably 4
Those having a temperature of 0 to 80 ° C are used. 0 to 0
It is essential for curing the radical reactive composition at an ambient temperature of 40 ° C. No wax is required in large block production systems with high temperature polymerization from which oxygen has been removed.

When no oxygen-blocking substance is added to the room-temperature-reactive composition, room-temperature curing does not substantially occur, and a solid cured product cannot be obtained. Is clear. In addition, although there is no direct evidence that oxygen-blocking substances form a layer or film,
If the surface of the room temperature reactive composition is disturbed by mechanical, thermal or physicochemical forces, the curing near the surface is delayed,
Obviously, the need for an oxygen-blocking substance is necessary because the tack remains for a long time and a cured product having a low molecular weight and a low mechanical strength is obtained. Furthermore, at the same time as the vicinity of the surface of the room-temperature reactive composition starts polymerization, the gloss of the surface of the room-temperature reactive composition is reduced, the gloss of the surface of the cured product, smoothness and slip resistance, This is apparent from the fact that the cured product is different from the one cured under the condition that no oxygen-blocking substance is added.

Here, the base material is a hard material such as a concrete plate such as a PC plate or an ALC plate, a slate plate, a ceramic plate, a metal plate, a plastic plate, a rubber sheet, a foamed plastic plate, a film, and an FRP sheet. Any thing such as such a flexible thing may be used. The base material is not limited to a single layer, and may be a base material such as the above-described concrete plate provided with a heat insulating layer, an elastic layer, a waterproof layer, and the like. As the heat insulating layer or the elastic layer, rubber, foamed plastic, or the like can be used, and among them, a commercially available adhesive sheet as a butyl rubber sheet is preferable. In addition, various fibrous products such as carbon and glass, and plastic sheets reinforced with them can be used as the base material. It is particularly suitable when it is thin and needs strength.

The mold member is for imparting various shape properties to the surface of the resin when the resin is cured. Basically, the mold member has a pattern having a smooth surface and an uneven surface, a pattern having a step, and a pattern having a step. Is one of the combinations.
The smooth surface is literally smooth, and is a smooth portion such as a surface of a mirror or glass. The uneven surface is a fine uneven pattern such as a sand blast, a natural stone flap finish style, a burner finish style, or the like, which means that it is not smooth. The smooth surface and the uneven surface may be freely separated, but usually the periphery is a smooth surface and the inner side is an uneven surface. There is a region between the smooth surface and the uneven surface, which is also regarded as a non-smooth flat surface. The smooth surface is glossy like a mirror surface, and an image of a nearby object is formed on the surface. On a non-smooth flat surface, the shadow of the object is reflected but no image is formed. On a mirror surface, the irregularities on the surface are smaller than the wavelength of visible light, and light reflection on the surface is likely to occur regularly, whereas on a non-smooth flat surface, the irregularities on the surface are larger than the wavelength of visible light, and light is irregularly reflected. The irregularities on the surface are not so large as to be visible. That is, it is about 0.1 to 10 μm. Materials showing such a surface include frosted glass,
Examples include high-quality paper, ceramics, foamed plastic, etched metal surfaces, and synthetic resin plates containing fine powder.

In the case of the one having a step, the periphery is low after hardening so that most of the center is slightly high, as in so-called Edo cutting. Of course, the opposite is true for the mold member. Further, when a plate-like body made of natural stone is stuck to a wall surface, joints may be provided between the stones, which may also be configured in advance as steps.

The mold member itself may be formed in various shapes, or may be formed in a natural stone style such as a stone wall of a castle having no smoothness. The mold member is preferably an integral type, but various shapes may be combined.

According to the present invention, a base material is placed and a room temperature reactive composition is provided thereon, and a mold member is pressed or vice versa, and a room temperature reactive composition is provided thereon. The material may be pressed freely. The pressing at this time may be merely by gravity.

Further, if characters or figures are engraved on the mold member, an imitation stone embossed with it is completed.
It's like carving a stone.

The material of the mold member is plastic, metal, F
Although various materials such as RP and ceramics can be used, plastics are preferable, and non-stretched or stretched films, sheets or foams such as polyester, polyolefin, polyvinyl alcohol, polyamide, polyphenylene oxide, and vinyl chloride are used. Polyester films are particularly preferred in terms of strength, dimensional stability, cost and the like. When using a thin film as a mold member,
In order to compensate for insufficient strength, it can be handled by being combined with a thick sheet or plate made of various materials. This is particularly advantageous when manufacturing by a continuous process.

Before the room-temperature reactive composition is provided on the substrate, a thin coating may be applied to the surface of the substrate. This may be an ordinary paint or the like, and a transparent acrylic emulsion type or the like was suitable. In short, any coating agent may be used as long as it can prevent the penetration of the room temperature reactive composition downward. This can prevent the room-temperature reactive composition from penetrating downward even if the substrate has a high open cell property or high hygroscopicity. The reason for preventing the penetration is that when the room-temperature reactive composition penetrates downward, the aggregate remains above and the luster does not appear. Needless to say, such a coating agent is unnecessary if the resin does not penetrate or the degree of penetration is small.

In some cases, the releasability between the mold member and the cured resin becomes a problem. Those having poor releasability require treatment such as applying a release agent to the mold member. However, when a release agent is applied, the smoothness of the mold member is impaired by the substance, or the release agent penetrates the room-temperature reactive composition, and the smoothness of the cured resin becomes macroscopically and microscopically. May also be impaired. In order to prevent these, it is important to manufacture the mold member itself with good releasability. In the experiment of the inventor, the one coated with a polymer having a three-dimensional structure cured by ultraviolet light with an acrylic resin was preferable.
If this is used as a mold member or coated on the surface, very good peeling can be obtained. In addition, since no release agent is used, smoothness is also ensured.

In order to produce a member for civil engineering and construction having a natural stone appearance or natural stone, a new and beautiful appearance not found in natural stone, its resin mortar layer must be composed of a mixture of resin and aggregate. . By adjusting the particle size and composition of the fine powder portion and coarse particle portion of the aggregate, the resin and the aggregate can make the resin mortar layer after molding uniform, that is, a material having a uniform particle size distribution. Although it is possible, another major feature of the present invention is that in the resin mortar layer, there is uneven distribution in the layer due to the gravity of the aggregate, and due to the cured resin which is abundant on the surface, it has a gloss peculiar to the resin, natural stone and other In that it has a surface very similar to that of a polished stone.
Aggregates rarely appear on the surface and become shiny. It is not necessary to cut or grind a large block resin mortar cured product that has been manufactured in advance.

In the conventional production of artificial marble, since large blocks are formed, cut and polished, uneven distribution of aggregates in the blocks is extremely undesirable for producing a uniform product. It shows the difference between the two technologies.

The production method of the present invention is a production method suitable for compounding with various base materials since the appearance of the product is obtained immediately after molding, and depending on the type of base material, a beautiful and inexpensive outer wall material or on-site construction A thin-layered member for civil engineering and construction excellent in property can be obtained. If an adhesive sheet with a release paper is pasted on the back surface, the release paper can be peeled off and pasted immediately.

Since the room temperature reactive composition cures at an appropriate rate at room temperature of 0 to 40 ° C., it is convenient to continuously form a thin resin mortar. For that purpose, a curing accelerator and an oxygen barrier material are essential. At the time of reaction curing, high-temperature heating, for example, at 80 to 120 ° C. has no benefit as well as an adverse effect. That is, the convection due to the heating destroys the oxygen barrier film, resulting in a partial effect failure and an extreme difference in curing shrinkage, making it impossible to obtain a flat product. In order to reduce the amounts of the curing accelerator and the polymerization catalyst and to perform high-temperature polymerization without adding an oxygen-blocking substance, it is necessary to continuously flow the reactive composition in an inert gas atmosphere or under reduced pressure. In addition, a large equipment cost is required, and the reality is extremely small in terms of energy cost.

A method for continuously producing a sheet for civil engineering construction which is a member for civil engineering construction of the present invention is as follows.
That is, (1) the room-temperature reactive composition is supplied onto the continuous mold member sheet, (2) the composition is leveled in the traveling direction, and (3) the thickness of the composition is adjusted and the composition is adjusted. (4) 0
Curing at an ambient temperature of ４０40 ° C. Means for leveling the room-temperature reactive composition in the traveling direction may be such that the tip of the plate-like body is plate-like, cylindrical, or comb-like. The thickness adjustment may be performed simultaneously with the lamination of the base material sheets, or the lamination may be performed separately. Before moving to the curing process, the continuous sheet is cut into appropriate dimensions. Generally, the room temperature reactive composition is cut in an uncured state. The mold member may be a continuous sheet or a cut sheet, and still moves continuously. The supply of the room-temperature reactive composition may be continuous or intermittent, and the cutting may be performed at a portion where only the mold member and the base sheet flow. A partition such as a foam sheet may be put in the cutting section in advance. The base sheet is generally composed of a laminated sheet of a restoration sheet and an adhesive sheet. Preferably, a release paper for ease of handling is peelably attached to the adhesive sheet. The restoration sheet and the adhesive sheet may be supplied separately, or only the adhesive sheet may be laminated off-line.

The term "restoration sheet" as used herein is intended to prevent deformation of the room-temperature-reactive composition such as bending and enhance durability, and a high-strength polyester film, vinyl chloride film or the like is used to balance performance and cost. Is good.

The manufacturing method of the present invention will be described in detail with reference to the drawings.

1 to 3 show a member 1 for civil engineering and construction according to the present invention.
FIG. 1 is a process diagram showing a production method of the present invention. FIG. 1 shows a state in which a room-temperature reactive composition 7 is provided on a substrate 2. A concrete plate is used as the base material 2, and a methyl methacrylate compound mixed with an aggregate is used as the room-temperature reactive composition 7. In this state, the mold member 9 has not been cured yet, so the mold member 9 is placed and pressed from above so that air does not enter. If this is difficult, it is better to place the mold member 9 first and then provide the room temperature reactive composition 7 thereon.

After the room temperature reactive composition 7 is cured in the state shown in FIG. 2, the mold member 9 is removed. That is the state of FIG.
It is completed. In this example, since the mold member is formed in an Edo-cutting style, the surrounding smooth surface 10 and the central uneven surface 11 are formed.
Has been made.

FIG. 4 is a perspective view of an example of a member for civil engineering construction obtained by the manufacturing method of the present invention.

FIGS. 5 to 7 are process diagrams showing a method of manufacturing an arch-shaped member for civil engineering and construction used for the surface of a round pillar or the like. FIG. 5 shows a state in which a mold member 9 is placed first, and The room temperature reactive composition 7 is shown.

FIG. 6 shows a state in which the substrate 2 is placed and pressed inside. Then, it is cured by various methods, and then the mold member 9 is removed. This is the state shown in FIG. 7, and the curved civil engineering building member is completed. In this way, it can be used on the surface of a round pillar. This is also provided with a step that looks like a joint.

FIG. 8 is a diagram of a finished product similar to FIG. 3, which has a smooth surface 10 and an uneven surface 11 as well as a non-smooth flat surface 12 and has an Edo-cutting style.

FIG. 9 is a schematic sectional view showing an example of a member for civil engineering and construction according to the present invention. The room temperature reactive composition 7 is on the surface side, the adhesive sheet 3 is fixed below the composition, and the coarsely woven fiber sheet 6 is sandwiched between the two. A release paper 4 is removably attached below the adhesive sheet 3 for convenience of handling.

10 (a) to 10 (c) are schematic cross-sectional views showing a manufacturing process of an example of the member for civil engineering and construction shown in FIG. 9, and FIG. In this state, the object 7 is filled. The mold member 9 is a plastic shallow container having a depth of about 3 mm. As the room-temperature reactive composition 7, a methyl methacrylate compound mixed with an aggregate is used. In this state, it has not yet been cured.

FIG. 10B shows a state in which the fiber sheet 6 is placed upward in this state. Next, the adhesive sheet 3 is placed and pressed from above so that air does not enter.

After curing in the state shown in FIG. 10C, the mold member 9 is removed. In this example, the release paper 4 is already stuck. This is the state shown in FIG. 9 and is completed. In this example, it is smooth and has no steps like a sliced product of a normal natural stone.

FIG. 11 is a schematic side view showing a method for continuously manufacturing a sheet for civil engineering construction which is a member for civil engineering construction according to the present invention. For example, a long belt conveyor 14 of about 50 m
The room-temperature-reactive composition 7 is applied to one of them so that a predetermined thickness and a predetermined width are obtained. The width may be regulated by walls provided on both sides of the belt conveyor 14, and the thickness may be adjusted by the supply amount, or may be passed through the leveling plate 17 as a gap defining the thickness. The gap may be a roll, and the thickness can be adjusted after the composite of the fiber sheet 6 or the adhesive sheet 3. In such a situation, the fiber sheet 6 is placed from above while the room-temperature-reactive composition 7 is not cured, and then the adhesive sheet 3 is placed and pressed from above by a pressing roll or the like. In this state, it is slowly transferred by the belt conveyor 14 and cured. When it is cured, it is removed from the belt conveyor 14 and cut into a predetermined size by a cutter 16 at a cutting table 15. It is also possible to cut in an uncured state. If the supply of the room-temperature reactive composition 7 supported on the thin sheet 13 is partially interrupted in the traveling direction, it becomes easier to cut. Interrupted room temperature reactive composition 7
For example, a foamed plastic sheet having a width of about 1 cm may be inserted into a portion where no is present for partitioning. The thin sheet 13 is made of a material such as a polyester film. For example, a metal carrier having a thickness of 0.1 to 2 mm and a fixed length of 0.5 to 5 m are integrated with a thin sheet, and the sheet for civil engineering and construction members is intermittent, but the belt conveyor 14 is continuously. It may be in a state where it operates. Instead of cutting, it can be heated to about 100 ° C. after curing to make it soft, and it can be wound up in a roll form and stored. When using or cutting such things,
Reheat. Of course, this is due to the nature of the resin, and in the case of a resin that is difficult to do so, cutting is usually performed after curing. Further, if the material is not cured on the belt conveyor 14 depending on the conditions, the material may be cut into an appropriate size as it is, transferred to a fixed shelf, cured and cured, and then cut into a predetermined size.

The sheet of the present invention formed by the belt conveyor system has a small thickness. It is not sliced along the thickness, and the textures appearing from the cut are not used. Only the pattern formed by the mold member is used as it is as a landscape surface. The total thickness of the surface layer, the intermediate layer and the lower layer is preferably 2 to 10 mm,
More preferably, 2.5 to 7 mm, more preferably, 3 to
6.5 mm.

FIG. 12 is a schematic sectional view showing an example of a member for civil engineering and construction according to the present invention. Room temperature reactive composition 7 on the surface side
There is an adhesive sheet 3 fixed below it,
A restoration sheet 5 is sandwiched between the two. A release paper 4 is removably attached below the adhesive sheet 3 for convenience of handling. As the restoration sheet 5, an adhesion-enhanced polyester film, a vinyl chloride film, or the like is used.

FIGS. 13A to 13C are schematic cross-sectional views showing a manufacturing process of an example of a member for civil engineering and construction. FIG. It is in a filled state. The mold member 9 is, for example, a shallow container made of plastic having a depth of about 3 mm. As the resin, a methyl methacrylate compound mixed with an aggregate is used.
In this state, it has not yet been cured.

FIG. 13B shows a state in which the restoration sheet 5 is placed upward in this state. Next, the adhesive sheet 3 is placed and pressed from above so that air does not enter.
In this example, the release paper 4 is already stuck.

After curing in the state shown in FIG. 13C, the mold member 9 is removed. This is the state shown in FIG. 12, which is completed. In this example, it is smooth and has no steps like a sliced product of a normal natural stone.

The continuous manufacturing method is the same as that of the member described with reference to FIG. The restoration sheet 5 having a function slightly different from that of the fiber sheet is used. The restoration sheet 5 prevents deformation of the room-temperature reactive composition 7 such as bending, and enhances durability. An adhesive and high-strength polyester film, a vinyl chloride film, or the like has a good balance between performance and cost. When the adhesive sheet 3 is used at the same time, the restoration sheet 5 is used inside the adhesive sheet 3 as the outermost layer. In continuous production, the restoration sheet 5 and the adhesive sheet 3 can be separately laminated, but can also be used integrally.

FIG. 14 is a schematic sectional view showing an example of a member for civil engineering and construction according to the present invention. This has a structure similar to that of the member for civil engineering and construction shown in FIG. 12, but in a state in which the mold member sheet 9 ′ in which the form is given to the resin layer or the resin mortar layer 8 remains without being removed. . The mold member sheet 9 'plays a role of protecting the surface during the transportation of the product and masking at the time of joint construction even after performing the function of imparting the shape. After being laid on the floor, the mold member sheet 9 ′ before being used.
Is removed.

FIG. 15 is a schematic sectional view showing an example of a member for civil engineering and construction according to the present invention. This has a structure similar to that of the civil engineering building member shown in FIG. 14, with a resin upper layer or a resin mortar upper layer 8 'having a different composition above the resin mortar lower layer 8 "and below the mold member sheet 9'. The resin upper layer or the resin mortar upper layer 8 'is generally made of a hard transparent resin, and its function is to protect the resin mortar lower layer 8 "and to provide different landscapes. In the case of FIGS. 12 and 14 having similar structures, the abrasion resistance, chemical resistance, antifouling property, etc. of the room temperature reactive composition 7, the resin layer or the resin mortar layer 8 may become a problem depending on the application. However, there are cases where the problem is solved by the structure shown in FIG.

FIG. 16 is a schematic sectional view showing an example of a member for civil engineering and construction according to the present invention. FIG. 4 is a cross-sectional view of a member for civil engineering and construction according to the manufacturing method of the present invention, which schematically shows distribution of aggregate in a resin mortar layer. FIG. 16 has the same layer configuration as FIG. 15, but the distribution of the aggregate in the resin mortar lower layer 8 ″ is not limited to the layer configuration of FIG. The general structure of the member is shown in Fig. 16. In Fig. 16, a resin mortar lower layer 8 "is shown.
The distribution of aggregates in the inside is not uniform in the layer, but is shifted upward. The upper side is the lower side when the member sheet for civil engineering and construction is manufactured, and the schematic diagram of FIG. 16 is upside down. When uncured, the aggregate has a specific gravity generally higher than that of the room-temperature reactive composition, so that the aggregate sinks downward due to gravity, and the distribution of the aggregate is offset. This results in an aggregate distribution as shown in FIG.

Since the conventional artificial marble or granite sheet employs a manufacturing method different from that of the present invention, the distribution of the aggregate in the resin mortar layer shown in FIG. 16 does not shift. This will be described with reference to FIGS. 17 and 18.

FIG. 17 is a schematic sectional view showing an example of the resin mortar lower layer 8 ″ of the member for civil engineering construction in FIG.
In No. 7, a fluid resin mortar is formed, and the aggregate is settled in the surface direction and hardened to form a hardened material surface 18. In addition to the aggregate 19 and the resin 20, which may contain fine powder not displayed as an aggregate, there is a resin portion 20 'that fills the space between the mold member and the settled aggregate and is visible from the surface. Aggregates are not cut after hardening, nor are they generally polished. It is formed by a mold member. Due to the presence of the three-dimensional aggregate 19 that is not cut and the resin portion 20 ′ that can be seen from the surface, the surface shape of the member for civil engineering and construction has a variety of very tasty patterns.

FIG. 18 is a schematic sectional view showing an example of a resin mortar layer of a conventional member for civil engineering and construction. In FIG.
It is cut from a large block and polished.
In this case, there is no vertical separation of the resin-aggregate system before the block body is cured, and a uniform resin as a whole is required, and therefore, the resin ratio tends to be small. In the cut / polished surface 18 'of the cured product, the resin ratio of the resin portion 20' seen from the surface is smaller than that in FIG. The cut and polished aggregate 19 ′ is not three-dimensional when viewed from the surface, but is two-dimensional, and has a different taste from FIG. 17.

In FIG. 16, since various aggregates are used and a three-dimensional surface other than a cut surface is possible, any object can be used as a three-dimensional surface pattern. FIG.
After the object is placed on the mold member sheet 9 ′, the resin mortar may be flowed, before or after forming the resin upper layer or the resin mortar upper layer 8 ′, or in the resin upper layer or the resin mortar upper layer 8 ′. The objects to be patterned can be mixed into the resin. Examples of the object include, without limitation, colored ceramic particles, ore particles, fibrous materials, film-like materials, and even living things.

[0071]

Embodiments will be described below.

Example 1 A butyl rubber sheet having a thickness of 1.0 mm (manufactured by Seishon Co., Ltd.) as a base material, release paper adhered to one side, and a polyester film (manufactured by Toray Industries, Inc.) having a thickness of 250 μm A biaxially stretched film was used. The upper layer is a polyester film, and the lower layer is a butyl rubber sheet.

The composition of the methyl methacrylate resin mortar is as follows by weight ratio. A methyl methacrylate compound is used, and is composed of 95% or more of methyl methacrylate, 0.5% of dimethyl p-toluidine as a curing accelerator, and 1% of wax. A polymerization inhibitor has been added in advance. As the organic peroxide as a curing agent, 2% of dibenzoyl peroxide (manufactured by Kayaku Akzo Co., Ltd., hereinafter abbreviated as BPO) was used with respect to methyl methacrylate. As the aggregate, a natural mixture of white marble tone and black granite tone having a particle size of 2.5 to 0.1 mm was used. As the powder aggregate, aluminum hydroxide having an average particle size of about 20 μm (Sumitomo Chemical Co., Ltd.)
Was used.

The composition is such that a methyl methacrylate compound / aluminum hydroxide / aggregate = 6/5/20 is well mixed in a weight ratio, and the obtained room-temperature reactive compound is poured onto a base material, and the thickness is reduced. After the thickness was set to 6 mm, a polyester resin-type member having an uneven pattern and a smooth surface pattern was fixed by pressure. After leaving at room temperature for about 1 hour at 20 ° C. and removing the mold member after curing, a member for civil engineering and construction having an uneven pattern and a smooth surface pattern was obtained.

When the release paper on the butyl rubber sheet surface of the member for civil engineering construction obtained by the above method was removed and installed on the cleaned concrete floor surface, the construction floor was extremely quickly and durable without soiling the hands. I knew I could do it.

Further, a comparison was made between the case where the polyester film was laminated on the butyl rubber sheet as the base material and the case where only the butyl rubber sheet was used as the base material. The bending rigidity of the sheet according to the three-point bending test of -K-7203 was 800 kgf / cm ² and 180 kgf / cm ² .
cm ² , and it was found that the reinforcing effect of the polyester film, that is, the prevention of deformation and the restoring property were remarkable, and that the resin mortar layer was less likely to crack due to the deformation.

Example 2 A member for civil engineering and construction was manufactured in the same manner as in Example 1 except that the base material and the mold member were replaced. That is, the same resin mortar as in Example 1 was flowed on a polyester resin mold member having the same concavo-convex pattern and smooth surface pattern as in Example 1 to a thickness of about 6 mm. The composite sheet on which the films were laminated was pressed and fixed with the polyester film side facing downward. After leaving at room temperature for about 1 hour at 20 ° C. and removing the mold member after curing, a member for civil engineering and construction having an uneven pattern and a smooth surface pattern was obtained.

When the member for civil engineering and construction obtained by the above method was removed from the butyl rubber sheet surface in the same manner as in Example 1, and was placed on a cleaned concrete floor, the result was the same as that in Example 1. Was.

The appearance of the members for civil engineering and construction of Example 1 and Example 2 has a slight difference in the pattern of the aggregate on the surface. In Example 2 in which the mold member is on the lower side, the surface pattern has more aggregate and the distribution is uniform. This is because the coarse aggregate in the resin mortar poured onto the mold member settles before the resin hardens. In the first embodiment, since the aggregate is settled on the composite sheet in which the polyester film is laminated on the lower butyl rubber sheet, the aggregate is reduced on the mold member surface side.

The state of the surface serving as a pattern varies slightly depending on the type of aggregate and the composition of the resin mortar, and there is a case where there is no difference between the first embodiment and the second embodiment.

Example 3 Three types of ALC board having a thickness of about 4 cm, a wooden board having a thickness of about 1 cm, and a caical board having a thickness of about 7 mm were used as base materials, and the members for civil engineering and construction were produced by the method of Example 2 as follows. Manufactured.

The methyl methacrylate compound used and the composition thereof were the same as those in Examples 1 and 2, and the type and amount of the curing agent were the same. The aggregate is a ceramic ball with a particle size of 3.2 to 3.2.
0.5 mm, a mixed aggregate of blue / white = 3/7 ratio (manufactured by Shibata Ceramics Co., Ltd.) was used, and aluminum hydroxide was used as a powdered aggregate. Weight ratio is methyl methacrylate compound /
Aluminum hydroxide / Aggregate = 6/5/20, which was added to methyl methacrylate-based compound with organic peroxide PBO
Was added and mixed well, and the resulting mixture was poured on a mold member sheet to a thickness of about 5 mm. The mold member sheet is a 1 mm thick polyethylene foam having a foaming ratio of about 2 times attached to a plywood having a thickness of about 4 mm with an adhesive, and the surface of the mold member sheet is a non-smooth surface having fine irregularities. is there.

The methyl methacrylate compound for bonding the base material has uneven lines so that air can easily escape. Further, a spacer for regulating the thickness is provided so that the methyl methacrylate compound is not deformed by the weight of the base material. In this way, three types of foam concrete, wood board and skeletal board were placed and cured at 25 ° C.

After about 2 hours, a civil engineering / architectural member having a beautiful surface which was firmly adhered to the substrate and cured was obtained. No significant difference was observed in the production of any of the base materials, and it was found that the high-quality members were similar in appearance. The pattern surface is a flat surface with no gloss by directly copying the surface of the mold member.

Example 4 A 125 μm thick sandblasted polyester film (manufactured by Toray Industries, Inc.) having an opaque surface similar to ground glass is used as a mold member. The types and composition ratios of other resins, hardeners and aggregates In all other respects, members for civil engineering construction were manufactured in the same manner as in Example 2. After the resin mortar was flowed on the blast surface of the opaque polyester film as a mold member without changing the manufacturing process, the same procedure as in Example 2 was performed, for example, by laminating a polyester film-butyl rubber sheet composite sheet as a base material. . The pattern surface of the obtained member sheet for civil engineering and construction had a low gloss.

Example 5 A member for civil engineering and construction was manufactured using a small-sized continuous apparatus. The sheet width of the member was 10 cm, and the mold member was a surface-blasted translucent polyester film having a thickness of 75 μm (manufactured by Toray Industries, Inc.) having a width of 20 cm. The mold member also serves as a sheet on which the methyl methacrylate compound is placed and conveyed, moves on a belt conveyor, uses a restored sheet of a polyester film having a thickness of 250 μm and a thickness adjustment, and a butyl rubber sheet is not laminated, but is used for composite. After passing through the roll, it was cut, transferred to a curing shelf, and cured at room temperature. The preparation of the resin mortar is the same as in Examples 1 and 2,
The same applies to the composition of the resin and the aggregate.

The methyl methacrylate compound mixed with the organic peroxide PBO is supplied to a hopper and has a width of 10 c.
From the bottom having an opening of mx 5 cm in length, it is placed on a mold member film flowing in contact therewith, and while the film is moving, the supply amount is almost adjusted by the height of the slit at the bottom of the hopper. The moving speed is 1 m / min.

The thickness is adjusted to about 4 mm by a leveling plate having a curved cross section while blocking the methyl methacrylate compound so as not to spread in the lateral direction. The vibration for is applied.

Further running, a polyester film having a thickness of 250 μm and a width of 20 cm is laminated from above with two upper and lower rolls having a diameter of 15 cmΦ and at the same time, a thickness of 3.5 mm.
It is adjusted to.

After the roll is discharged, the roll is cut at a fixed length of 1 m.
After being transferred to a curing shelf, it is left to stand for about 1 hour and cured at room temperature.
For the convenience of cutting, the resin mortar may partially leave the film-only part in the intermittently supplied running sheet,
For example, a foamed sheet having a width of about 3 cm and a thickness of about 3.5 mm can be inserted at right angles to the running direction.

The cured sheet thus obtained is obtained by laminating a butyl rubber sheet in a separate step and cutting it to a predetermined size with a cutter. The film of the mold member is left attached. The film of the mold member can be removed immediately after curing, but need not be removed. This film has a function of protecting the film from being damaged during transportation and handling and a function as a masking film at the time of on-site construction.

Example 6 100 parts by weight of a methyl methacrylate compound to which a polymerization inhibitor had been previously added, 3 parts by weight of an organic peroxide BPO, 0.5 parts by weight of a curing accelerator, and 20 parts by weight of a wax
A composition consisting of parts by weight was conducted at room temperature of 25 ° C., and otherwise by the method of Example 2. As a result, the curability was good and good.

Example 7 100 parts by weight of a methyl methacrylate compound to which a polymerization inhibitor had been previously added, 5 parts by weight of an organic peroxide BPO, 0.5 parts by weight of a curing accelerator, and 0.1 part by weight of a wax.
A composition consisting of 1 part by weight was prepared at room temperature of 25 ° C., and otherwise by the method of Example 2. As a result, the curability was good and good.

Comparative Examples 1 to 3 Curability when one component is not added among the curing accelerators, organic peroxides and waxes of the added components to the methyl methacrylate compound to which the polymerization inhibitor is added in advance. Was examined. In the curing test, about 500 g / composition of the composition shown below was applied to the surface of the polyethylene foam having a non-smooth surface having fine irregularities on the surface used in Example 3.
It was carried out in a way that applied in m ^2.

The composition used in Example 1 was 100 parts by weight of a methyl methacrylate compound, 3 parts by weight of an organic peroxide, and 0.5 part by weight of a curing accelerator. Comparative Example 1 was a composition containing no methyl methacrylate compound, 3 parts by weight of an organic peroxide, and 1 part by weight of a wax, to which no curing accelerator was added. A composition comprising 100 parts by weight of a methyl methacrylate compound, 0.5 parts by weight of a curing accelerator, and 1 part by weight of a wax, to which no organic peroxide was added, was designated as Comparative Example 3 at room temperature of 20 ° C. went. Comparative Examples 1 to 3 did not cure even after 20 hours had elapsed, and could not be used.

[0096]

According to the present invention, a concrete plate, a slate plate, a metal plate, a plastic plate, a foamed plastic plate, a film, a rubber sheet, an FRP sheet, etc.
The present invention can provide a method of manufacturing a member for civil engineering and building which forms a layer of resin mortar having a new and beautiful surface which is not found in nature of marble or granite. This is a manufacturing method suitable for compounding with various base materials because it immediately becomes an appearance as a product after molding.Depending on the type of base material, beautiful and inexpensive outer wall materials and thin layer sheet members with excellent on-site workability can be obtained. Can be

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing an example in which a room-temperature reactive composition is applied to a substrate of the present invention.

FIG. 2 is a schematic sectional view showing an example of pressing a mold member of the present invention.

FIG. 3 is a schematic sectional view showing an example in which a mold member of the present invention is removed.

FIG. 4 is a perspective view showing an example of a member for civil engineering and construction having an uneven surface obtained by the manufacturing method of the present invention.

FIG. 5 is a schematic cross-sectional view showing an example in which a room temperature reactive composition is applied to a mold member of the present invention.

FIG. 6 is a schematic cross-sectional view showing an example of pressing a base material of the present invention.

FIG. 7 is a schematic sectional view showing an example in which the mold member of the present invention is removed.

FIG. 8 is a schematic sectional view showing an example in which the mold member of the present invention is removed.

FIG. 9 is a schematic cross-sectional view showing an example of a member for civil engineering and construction according to the present invention.

FIG. 10 is a schematic cross-sectional view showing a manufacturing process of an example of the member for civil engineering construction in FIG.

FIG. 11 is a schematic side view illustrating a manufacturing process of an example of a member for civil engineering and construction according to the present invention.

FIG. 12 is a schematic cross-sectional view showing an example of a member for civil engineering and construction according to the present invention.

13 is a schematic cross-sectional view showing a manufacturing process of an example of the member for civil engineering construction in FIG.

FIG. 14 is a schematic sectional view showing an example of a member for civil engineering and construction according to the present invention.

FIG. 15 is a schematic sectional view showing an example of a member for civil engineering and construction according to the present invention.

FIG. 16 is a schematic cross-sectional view showing one example of a member for civil engineering and construction of the present invention.

17 is a schematic cross-sectional view showing an example of a resin mortar lower layer of the member for civil engineering and construction of FIG.

FIG. 18 is a schematic cross-sectional view showing an example of a resin mortar layer of a conventional member for civil engineering and construction.

[Explanation of symbols]

 1: Civil engineering building member 2: Base material 3: Adhesive sheet 4: Release paper 5: Restoration sheet 6: Fiber sheet 7: Room temperature reactive composition 8: Resin layer or resin mortar layer 8 ': Resin upper layer or resin mortar Upper layer 8 ": Resin lower layer or resin mortar lower layer 9: Mold member 9 ': Mold member sheet 10: Smooth surface 11: Uneven surface 12: Non-smooth flat surface 13: Thin layer sheet 14: Belt conveyor 15: Cutting table 16: Cutter 17: Leveled plate 18: Surface of hardened material 18 ': Cutting / polishing surface of hardened material 19: Aggregate 19': Aggregate cut and polished 20: Resin portion 20 ': Visually viewed from above the surface Resin part

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) B29L 31:10 C04B 111: 54 (72) Inventor Hideharu Nagata 9-2-30 Tanimachi, Chuo-ku, Osaka-shi, Osaka No. Inside of Osada Giken Co., Ltd.

Claims (21)

[Claims] 1. A room-temperature reactive composition containing the following (1), (2) and (3) and an oxygen-blocking substance is provided on a base material, and a mold member is pressed and placed from above to cause a curing reaction. And then removing the mold member. (1) Methyl methacrylate-based compound and / or mortar of methyl methacrylate-based compound (2) Organic peroxide (3) Curing accelerator 2. The following (1), (2) and (3) are formed on a mold member.
Provide a room-temperature reactive composition comprising and an oxygen-barrier substance,
A method for manufacturing a member for civil engineering and construction, wherein a base member is pressed and placed from above, and after a curing reaction, a mold member is removed. (1) Methyl methacrylate-based compound and / or mortar of methyl methacrylate-based compound (2) Organic peroxide (3) Curing accelerator 3. The member for civil engineering construction according to claim 1, wherein the mold member has any one of a smooth surface, a non-smooth flat surface, an uneven surface, and a surface having a step. Production method. 4. The method for producing a member for civil engineering construction according to claim 1, wherein the organic peroxide is dibenzoyl peroxide. 5. The method for producing a member for civil engineering construction according to claim 1, wherein the curing accelerator is a toluidine compound. 6. The method for producing a member for civil engineering construction according to claim 1, wherein the oxygen-barrier substance is an oxygen-barrier film-forming substance. 7. The method for producing a member for civil engineering and construction according to claim 1, wherein the oxygen-barrier substance is wax. 8. The method according to claim 1, wherein the curing reaction is performed at an ambient temperature of 0 to 40 ° C. 9. The weight ratio of the room-temperature reactive composition is methyl methacrylate compound / organic peroxide / curing accelerator = 1.
The method for producing a member for civil engineering and construction according to any one of claims 1 to 8, wherein the ratio is 00 / 0.5 to 10 / 0.05 to 5. 10. The method for producing a member for civil engineering construction according to claim 1, wherein the room-temperature reactive composition contains an aggregate. 11. A room-temperature-reactive composition is supplied onto a moving continuous mold member sheet, and after the composition is leveled in the advancing direction, the thickness of the composition is adjusted and the base on the composition is adjusted. A method for producing a sheet for civil engineering construction, comprising laminating material sheets separately or simultaneously and curing at an ambient temperature of 0 to 40 ° C. 12. The room-temperature reactive composition has a thickness of 2 to 10 m.
The method for producing a sheet for civil engineering and construction according to claim 11, wherein m is m. 13. The supply of the room-temperature reactive composition is characterized in that a room-temperature-reactive composition having a thin layer is formed in advance, and another room-temperature reactive composition having a different composition is formed in an uncured or cured state. The method for producing a sheet for civil engineering and construction according to claim 11. 14. A sheet for civil engineering and construction comprising the following layers (1), (2) and (3). (1) Surface layer: Mold member sheet (2) Intermediate layer: Resin mortar layer (3) Lower layer: Base sheet 15. The sheet for civil engineering construction according to claim 14, wherein the surface of the intermediate layer, which is the appearance of the sheet for civil engineering construction, is formed by a mold member sheet. 16. The sheet for civil engineering and construction according to claim 14, wherein the intermediate layer comprises a resin mortar upper layer and a resin mortar lower layer. 17. The sheet for civil engineering construction according to claim 14, wherein the intermediate layer is formed by laminating two resin mortar layers having different compositions. 18. The distribution of aggregate in the intermediate layer composed of one layer or the distribution of aggregate in at least the lower layer of the intermediate layer composed of two layers is unevenly distributed in the upper part. The sheet for civil engineering and construction according to any one of claims 14 to 17, characterized in that: 19. The sheet for civil engineering construction according to claim 14, wherein the mold member sheet and / or the base sheet are made of a polyester film. 20. The sheet for civil engineering construction according to claim 14, wherein the lower layer comprises a restoration sheet and an adhesive sheet. 21. The method according to claim 14, wherein the mold member sheet is made of a polyester film and the restoration sheet is made of a vinyl chloride film, and the thickness of the intermediate layer is 2.5 to 7 mm. 20. The sheet for civil engineering construction according to any one of 20.