JP4753767B2 - Plate laminate for covering structure and method for mounting the same - Google Patents

Description

  The present invention relates to a plate-like laminate for covering a structure and a mounting method thereof. More specifically, the present invention provides an extremely strong heat-resistant coating on the surface of a structure to be waterproofed or waterproofed in a short period of time, for example, in civil engineering, construction and waterproofing / waterproofing. The present invention relates to a structure-covering layer plate-like laminate that can be covered and fixed to a sheet and a mounting method thereof.

  For example, in civil engineering work, construction work, and waterproof / water-proof work, the structure to cover the surface to be waterproof or water-proof, fire resistance, wear resistance, weather resistance, rigidity, smoothness and dirt removal In order to improve the characteristics such as the above, the surface of the structure is coated with a resin-based material including a thermosetting resin and / or an inorganic material including a cement-based coating material, or formed of the above-described material. It has been conventionally known that plate-like materials are bonded and coated with an adhesive. When the structure is an existing body, in order to attach the paint or plate-like material to the structure, the surface of the structure is cleaned, and the surface of the structure is restored to a healthy state. Must be attached. Such cleaning and repair are indispensable for ensuring the adhesion between the structure and the coating film or plate-like material. In addition, even when painting or coating a new structure, if the amount of moisture present on the surface of the structure is not controlled to a sufficiently dry state, the structure and the coating or plate-like material It is not possible to ensure the fixing. In addition, when the structure is outdoors, the method and conditions for painting or coating must be selected sufficiently according to the weather conditions when painting or coating is performed. In coating by coating, fine irregularities are generated on the painted surface, and dirt substances adhere to the recesses and remain, so removal of the dirt substances attached in this way may not be easy.

  In addition, in order to cover and fix the plate-like material on a structure, conventionally, a method or plate-like method in which a hole for an anchor bolt is drilled in the plate-like material and the plate-like material is attached to the structure through the anchor bolts. A method of fixing the material to the surface of the structure via an adhesive and / or adhesive material, or attaching a pre-installation member to each of the structure and plate-like material, and connecting and fixing them The construction method to use is used.

In the construction method using the anchor bolt, the head of the anchor bolt is exposed on the surface of the plate-like material, and when this is coated, the treatment trace remains and irregularities are formed on the coated surface. In addition, in order to avoid the formation of irregularities on the coated surface, the thickness of the plate-like material is designed to be sufficiently large to form a recess for accommodating the head of the anchor bolt, and the anchor bolt head accommodated in the recess and the recess For example, it is necessary to fill the gap between the inner wall surface and the resin, for example.
However, if there is unevenness on the coated surface after the plate-like material is attached, as a problem on water use, when water flows on this coated surface, the unevenness will generate resistance to flow movement, and the flow rate It may cause water use problems such as deterioration of water consumption. In addition, forming a recess for accommodating the anchor bolt head in the plate-like material increases the thickness and weight of the plate-like material, or reduces the mechanical strength of the plate-like material. Arise.

  In addition, in the construction method using the adhesive and / or pressure-sensitive adhesive, it is indispensable to clean the surface of the structure and sufficiently repair the surface of the structure, or to ensure the effect of the adhesive or pressure-sensitive adhesive. In order to achieve this, it is necessary to sufficiently control the dry state of the structure surface. In addition, when the structure is exposed outdoors, it is necessary to appropriately select and set the construction method and conditions according to the weather conditions. Further, when an adhesive is used, it may take a long time for the adhesive to solidify. In this case, it may be necessary to temporarily fix the coating material at the construction site. Furthermore, when the surface to be coated of the structure has a curved surface, it is necessary to use a plate-like material having a curved surface that matches this curved surface. It is necessary to apply

  In the construction method using the mounting member, in order to accurately and appropriately attach the mounting member to the structure and the plate-like material and to join them together, a high level of skill of the worker is required, and this requirement is satisfied. Therefore, there arises a problem that high costs and a long time are required.

  Further, when the structure to be covered is, for example, a horseshoe-shaped ridge, the surface to be covered has a curved surface, and therefore the bending elastic modulus of the plate-like material covering the structure is within an appropriate range. You need to be within. If the bending elastic modulus of the plate-like material is excessively high and hard, it becomes difficult to deform the plate-like material so as to match the curved surface of the structure, and this deformation may destroy the plate-like material. In addition, when the plate material has an excessively low flexural modulus and is flexible, it becomes difficult for the plate material to stand on its own, particularly when covering the ceiling curved surface of a structure. In order to prevent this defect, it is necessary to increase the number of fixing points and reduce the distance between them, and this requires time and effort to fix the plate-like material. , Cost and time increase.

  The present invention provides a plate-like laminate for covering a structure and a method for mounting the same, which can form a waterproof / waterproof coating having high heat resistance on the surface of a structure that requires coating in a short time. It is something to try.

The plate-like laminate for covering a structure of the present invention comprises a heat-resistant thermoplastic resin, a thermosetting resin, a reinforcing fiber-containing heat-resistant thermoplastic resin, a reinforcing fiber-containing thermosetting resin, a heat-resistant rubber, a reinforcing fiber-containing heat-resistant rubber, and a reinforcing fiber. A heat-resistant material layer containing at least one selected from a containing concrete, a reinforcing fiber-containing polymer concrete, and an inorganic oxide;
An organic fiber layer that is laminated on at least a part of one surface of the heat-resistant material layer and includes a synthetic fiber including a heat-meltable polymer;
One side portion of the organic fiber layer facing the heat-resistant material layer is taken into the heat-resistant material layer, and the organic fiber layer and the heat-resistant material layer are integrated in a plate shape. It is what.
In the plate laminate for covering a structure of the present invention, it is preferable that the surface of the heat-resistant material layer is formed of the inorganic oxide, and the initial luminous reflectance of the surface is 65% or more.
In the structure-coated plate-like laminate of the present invention, at least a part of the synthetic fibers in the opposite one side portion of the organic fiber layer not taken into the heat-resistant material layer is melted so that the synthetic fibers are mutually bonded. It is preferable that the film is fused or formed into a film.
In the plate laminate for covering a structure of the present invention, at least a part of the synthetic fiber contained in the organic fiber layer is a conjugate fiber having a core-sheath structure, and a polymer constituting the sheath is It is preferable to have a melting temperature lower than that of the polymer constituting the core.
In the plate-like laminate for covering a structure of the present invention, the organic fiber layer preferably contains two or more synthetic fibers having different melting temperatures.
In the plate laminate for covering a structure of the present invention, it is preferable that the synthetic fiber is contained in the three-dimensional knitted fabric in at least a part of the organic fiber layer.
In the plate laminate for covering a structure of the present invention, it is preferable that the flexural modulus of the plate laminate is in the range of 1 to 10 ⁴ MPa.
In the plate-like laminate for covering a structure of the present invention, the organic fiber layer is at least one inorganic fiber selected from glass fiber, metal fiber, carbon fiber and slag fiber in addition to the meltable synthetic fiber. May be included.
In the plate-like laminate for covering a structure of the present invention, the organic fiber layer is laminated on a part of one surface of the heat-resistant material layer, and glass fiber, metal fiber, metal on the other surface of the heat-resistant material layer. An inorganic fiber layer made of at least one kind of inorganic fiber selected from a wire, slag fiber, and carbon fiber is laminated, and one side portion of the organic and inorganic fiber layer facing the heat-resistant material layer is the heat-resistant material. The organic and inorganic fiber layers and the heat-resistant material layer may be integrated in a plate shape.
The mounting method of the plate-like laminate for covering a structure of the present invention is the method for attaching the plate-like laminate for covering a structure according to any one of claims 1 to 7 on the surface of the structure. The layer side is placed so as to face the surface of the structure. At this time, a mesh made of a metal having high-frequency induction heat generation properties is interposed between the organic fiber layer and the surface of the structure, and the metal The mesh is heated by high-frequency induction to melt the organic fiber layer, and the organic fiber layer is melt-bonded on the surface of the structure.
In the mounting method of the structure-coated plate-like laminate of the present invention, the structure-covering plate-like laminate according to claim 8 on the surface of the structure, the organic fiber layer and the inorganic fiber layer are: It is placed so as to face the structure surface, the inorganic fiber layer and the structure surface facing the structure are bonded with an inorganic adhesive, and the synthetic fiber-containing fiber layer is opposed to it. Interposing a mesh made of a metal having high-frequency induction heat generation between the structure surface and the metal mesh to cause high-frequency induction heat generation to melt the synthetic fiber in the organic fiber layer, The organic fiber layer may be melt-bonded thereon.

  The plate laminate for covering a structure of the present invention includes a heat-resistant material layer and an organic fiber layer that includes a heat-meltable synthetic fiber and is firmly bonded and integrated with the heat-resistant material layer. The organic fiber layer is firmly melt-bonded to the surface of the structure within a short time by causing the metal mesh disposed between the organic fiber layer and the surface of the structure to generate high-frequency induction heat by the method of mounting the laminate. The heat-resistant waterproof / water-proof layer can be formed on the outside by the heat-resistant material layer.

  In the plate laminate for covering a structure according to the present invention, the structure covered with the plate laminate has a surface made of soil, like a soil structure, and therefore the soil surface portion has a large number of pores. Or may be a concrete structure, a metal structure, a wooden structure, or a structure in which these are mixed.

The plate-like laminate for covering a structure of the present invention includes a heat-resistant material layer that forms the outside of the cover, and an organic fiber layer that faces and adheres to the structure when used.
That is, the heat-resistant material layer includes a heat-resistant thermoplastic resin, a thermosetting resin, a reinforcing fiber-containing heat-resistant thermoplastic resin, a reinforcing fiber-containing thermosetting resin, a heat-resistant rubber, a reinforcing fiber-containing heat-resistant rubber, a reinforcing fiber-containing concrete, and a reinforcing fiber-containing material. The organic fiber layer includes at least one selected from polymer concrete and inorganic oxide, and the organic fiber layer includes a synthetic fiber including a heat-meltable polymer, and at least a part of one surface of the heat-resistant material layer (that is, one or more layers). Layered on a part or the whole surface). One side portion of the organic fiber layer facing the heat-resistant material layer is taken into the partial layer of the heat-resistant material facing the organic fiber layer (in other words, the heat-resistant material The organic fiber layer and the heat-resistant material layer are integrated into a plate shape, extending into the layer (a heat-resistant material enters the inter-fiber gap in the portion where the organic fiber layer is pushed in) The thickness of the plate-like laminate is preferably in the range of 1.0 to 10.0 mm, more preferably 1.5 to 5.0 mm.

  In the cross-sectional explanatory view of the structure-coated plate-like laminate shown in FIG. 1, the plate-like laminate 1 includes a heat-resistant material layer 2 and an organic fiber layer 3 laminated thereon. The one-side portion 3a facing the heat-resistant material layer 2 is taken in (or extends) into the heat-resistant material layer 2, whereby the heat-resistant material layer 2 and the organic fiber layer 3 are strong. It is integrated with the unit. For this reason, the part 3b outside the heat resistant material layer of the organic fiber layer 3 is disposed outside the lower surface (boundary surface 4) of the heat resistant material layer.

  The organic fiber layer contains a synthetic fiber containing a polymer that can be melted by heat, preferably in a temperature range of 90 to 260 ° C. Therefore, a part of the synthetic fiber in the portion 3b located outside the heat-resistant material layer of the organic fiber layer can be thermally melted to bind the synthetic fibers to each other, or most of the synthetic fibers Alternatively, the entire outer part 3b of the organic fiber layer can be formed into a film by melting the whole. The heat-meltable polymer of the synthetic fiber in the organic fiber layer can be melted by high-frequency induction heat generation of a metal capable of high-frequency induction heat generation. For example, polyethylene, polypropylene, polyester, polyvinylidene chloride , Polyvinyl chloride, polyvinyl acetate, ethylene-vinyl acetate copolymer, polyurethane, polyamide, polyacryl, etc. may be used, and these may be used alone or in combination of two or more. Also good.

  The synthetic fiber contained in the organic fiber layer of the plate-like laminate of the present invention is a fiber composed of one or more of the above heat-meltable polymers, such as polyethylene fiber, polypropylene fiber, polyester fiber, polyvinylidene chloride fiber, poly A fiber in which vinyl chloride fiber, polyurethane fiber, polyamide fiber, polyacryl fiber, or the like is used as a single type, or a fiber in which two or more types thereof are mixed may be used.

  Furthermore, in the organic fiber layer of the plate-like laminate of the present invention, the synthetic fiber containing a meltable polymer is composed of two types of polymers having different melting temperatures, and is a side-by-side type or core. / A conjugate fiber having a sheath type structure, for example, a side-by-side type conjugate fiber containing polyethylene / polypropylene, or a core composed of a core made of polypropylene and a sheath made of polyethylene / A sheath type conjugate fiber or the like is used. In general, two types of polymers forming the core / sheath conjugate fiber form a core with a polymer having a higher melting temperature, and form a sheath with a polymer having a lower melting temperature.

In the organic fiber layer of the plate-like laminate of the present invention, the fiber containing the meltable synthetic fiber constituting the knitted fabric (for example, pile knitted fabric), non-woven fabric (including felt-like fabric), and web-like sheet Although there is no special restriction | limiting in each structure | tissue, a density, etc., it is preferable to have a 50-1000 g / m < ² > basis weight and a thickness of 2-10 mm, and a more preferable basis weight is 100- It is 200 g / m ² , and a more preferable thickness is 3 to 5 mm. The organic fiber layer is preferably formed from a felt-like synthetic fiber sheet.

The matrix contained in the heat-resistant material layer of the plate-like laminate of the present invention is selected from heat-resistant thermoplastic resins, thermosetting resins, heat-resistant rubber, concrete, polymer concrete, and inorganic oxides. The heat-resistant thermoplastic resin is a thermoplastic resin having a melting temperature of 150 ° C. or higher, such as polytetrafluoroethylene, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoro It can be selected from ethylene-ethylene copolymers, polyimide resins, polyamideimide resins, polycarbonate resins, polyphenylene sulfide resins, polyethersulfone resins, polyetheretherketone resins, and the like.
The thermosetting resin should be selected from, for example, phenol / formaldehyde resin, urea resin, melamine / formaldehyde resin, epoxy resin, furan resin, xylene resin, unsaturated polyester resin, vinyl ester resin, silicone resin, diallyl phthalate resin, etc. Can do. Further, the heat-resistant rubber can be selected from fluorine rubber, silicone rubber, ethylene-vinyl acetate copolymer rubber, acrylic rubber, urethane rubber, epichlorohydrin rubber, chlorosulfonated polyethylene rubber, ethylene-propylene rubber, and the like. Furthermore, as the concrete for matrix, Portland cement, blast furnace cement, silica cement, fly ash cement, alumina cement, and the like can be used. Polymer concrete contains cement as a binder component, and rubber latex, resin emulsion, mixed resin dispersion, ethylene-vinyl acetate copolymer resin, vinyl acetate-vinyl versatate copolymer resin as a polymer component. Polyacrylic acid ester, styrene-butadiene copolymer rubber, methyl cellulose, polyvinyl alcohol, calcium polyacrylate, epoxy resin, unsaturated polyester resin, and the like can be used. Furthermore, as the inorganic oxide for the heat-resistant material layer, for example, a nonflammable inorganic oxide such as silicon oxide, ferrite, titanium oxide, or the like can be used. The titanium oxide may have a photocatalytic function.
When the surface of the heat-resistant material layer is formed of an inorganic oxide, the initial luminous reflectance of the obtained heat-resistant material layer surface is preferably 65% or more, more preferably 75% or more. The initial luminous reflectance means the luminous reflectance immediately after the heat-resistant material layer is formed, and this luminous reflectance can be measured by the measuring method of JIS K 5665.

In the heat-resistant material layer of the plate-like laminate of the present invention, the matrix may be reinforced with reinforcing fibers. Examples of reinforcing fibers include glass fibers, aramid fibers, polyarylate fibers, carbon fibers, and phenolic fibers. Cross-linked fibers, polypropylene fibers, polyvinyl alcohol fibers, natural fibers, slag fibers, metal fibers, metal wires, and the like can be used. Although there is no special restriction | limiting in content of the reinforcing fiber in a heat-resistant material layer, Generally it is preferable that it is 1.5-80 volume% with respect to the quantity of a matrix. There is no particular limitation on the form of use of the reinforcing fiber, and it may be in the form of a stable fiber, filament, filament yarn or spun yarn, knitted fabric, nonwoven fabric, or pulverized fiber. .
Further, in the heat-resistant material layer, a filler (for example, silicon nitride whisker, graphite, glass powder, barium sulfate, silica and the like), a heat resistance improver (for example, a transition metal compound, etc.), a flame retardant imparting agent (for example, Tetrabromobisphenol A, TCEP, etc.) TCPP, melamine, expandable graphite, etc.), pigments (eg, chromium oxide, bengara, titanium yellow, cobalt blue, etc.), weather resistance improvers (eg, 2-hydroxybenzophenone, salicylate, benzoate) , And triazole compounds), and antioxidants (for example, 4-4′-butylidenebis- (phenol compounds such as 3-methyl-6-tert-butylphenol, and amine compounds such as phenyl-α-naphthylamine) are contained in appropriate amounts. May be.
Further, the outer surface of the heat-resistant material layer may be decorated with a paper material or fiber fabric material manufactured by impregnating a thermosetting resin such as decorative paper containing melamine resin.

  In the example of the plate-like laminate of the present invention shown in FIG. 1, the plate-like laminate 1 is a laminate of a heat-resistant material layer 2 and an organic fiber layer 3, and a boundary surface of the organic fiber layer 3. One side portion 3a above 4 is taken into (or pushed into) the heat-resistant material layer 2, and the other one side portion 5 below the boundary surface 4 is a portion of the synthetic fiber in this portion 5 Alternatively, the synthetic fibers may be fused to each other, or the synthetic fibers may be melted to form a film. Also in this case, the synthetic fiber in the one-side portion 3a of the organic fiber layer 3 extends into the fibrous heat-resistant material layer and is integrally bonded thereto.

In the example of the plate-like laminate shown in FIG. 2, for example, the synthetic fiber forming the organic fiber layer includes a core portion made of polypropylene (melting point: 176 ° C.) and a sheath portion made of polyethylene (melting point: 110 ° C.). May be a conjugate short fiber forming a core / sheath structure having a core / sheath mass ratio of 40:60 to 60:40, the fineness is 10 to 120 dtex, and the fiber length is 35 to 200 mm. Preferably there is. The core / sheath type conjugate short fiber, the basis weight is preferably 80~350g / m ^2, for example 150 g / m ^2, may also be felt-like nonwoven fabric of the formation.

Moreover, as an example of the heat-resistant material layer of the plate-like laminate 1 in FIG. 2, a material containing a phenol resin as a matrix and reinforced with a glass fiber woven fabric and / or a glass fiber nonwoven fabric can be given. The content of the reinforcing fiber is preferably 40 to 60% of the mass of the heat-resistant material layer, for example, 55% by mass.
In order to produce the plate-like laminate shown in FIG. 2, a heat-resistant material layer having a thickness of 2 to 4 mm, for example, is formed from a matrix material and, if necessary, reinforcing fibers, on which, for example, a thickness is formed. The organic fiber layer of 2 to 4 mm is overlaid, and this laminated body is subjected to heat press from the organic fiber layer side, and the one side portion facing the heat resistant material layer of the organic fiber layer is placed in the heat resistant material layer. For example, it is formed into a plate-like laminate having a thickness of 2.5 to 3.5 mm. At this time, if the hot pressing temperature is set to a temperature higher than the melting point of the polyethylene sheath and lower than the melting point of the polypropylene sheath, the core / sheath conjugate in the one-side portion 5 in contact with the hot pressing of the organic fiber layer. Polyethylene of the gate fiber (the sheath is melted, and a film-like body 5 in which the polypropylene core fiber is dispersed is formed.

  In the example of the plate-like laminate of the present invention shown in FIG. 3, the organic fiber layer 6 has a three-dimensional knitted fabric structure, and faces the heat resistant material layer 2 of the organic fiber layer 6 having this knitted fabric structure. The one side portion 6 a is taken into the heat-resistant material layer 2, but the remaining one-side portion 6 b extends to the back side of the heat-resistant material layer 2.

In the plate-like laminate 1 shown in FIG. 3, for example, the organic fiber layer 6 having a knitted fabric structure has a warp pile fabric structure, and the warp and ground yarns of the warp pile fabric are made of polyester fiber yarns. The pile warp that constitutes a plain weave structure and forms a pile is composed of a conjugate fiber having a core / sheath structure in which polypropylene is a core material and polyethylene is a sheath material. For example, such a through pile fabric has a thickness of 3 to 6 mm, for example, a thickness of 5 mm, 150 and 400 / m ² of basis weight is preferably one having a basis weight of, for example 250 g / m ^2. When the organic fiber layer 6 is formed by the warp pile fabric as described above, the pile layer portion of the warp pile fabric is taken into the heat-resistant material layer 2 as one side portion 6a, and joined and integrated therewith. It is preferable. In this case, the heat-resistant material constituting the heat-resistant material layer is not particularly limited. For example, a thermosetting polyurethane resin formed into a plate shape by a sheet molding compound method can be used, and the thickness is 3 to 3. It is preferably 8 mm, more preferably 4 to 5 mm.

In the plate-like laminate 1 illustrated in FIG. 4, a sheet made of a thermoplastic resin on one side portion 3 b of the organic fiber layer 3 where synthetic fibers are fused to each other or formed into a film. Alternatively, the film 7 is formed or joined.
The thermoplastic resin sheet or film is not particularly limited in the type of resin as long as it can be melt-bonded to the mounting bracket and the structure surface by high-frequency induction heating, and the structure of the film or sheet There is no particular limitation on the structure, for example, a film or sheet of thermoplastic resin, and a knitted or non-woven fabric of fibers (including core-sheath type synthetic fibers) made of one or more thermoplastic polymers. Also good. For example, in FIG. 4, the organic fiber layer 3 is composed of a core-sheath conjugate fiber having polypropylene as a core material and polyethylene as a sheath material, and is formed of a felt-like sheet having a basis weight of 150 g / m ^2. Is composed of a sheet of low density polyethylene having a thickness of 0.5 mm. In this case, the heat-resistant material layer 2 includes 55% of the mass of the glass fiber woven fabric and the glass fiber nonwoven fabric as reinforcing materials, and as the matrix of the heat-resistant material layer 2, for example, phenol resin is used. In the formation of the plate-like laminate, the core-sheath conjugate fiber felt for the organic fiber layer 3 is overlaid on the glass fiber-reinforced phenol resin plate for the heat-resistant material layer 2, and a low-density polyethylene sheet is overlaid thereon. From the low density polyethylene sheet side, hot pressing is performed for 40 minutes at a temperature of 150 ° C. and a pressure of 2 MPa. Then, one side portion of the felt for the organic fiber layer facing the heat-resistant material layer is taken into the heat-resistant material layer, and the low-density polyethylene sheet and the sheath portion of the core-sheath conjugate fiber in the opposite one-side portion of the felt (Polyethylene) is melted to form a polyethylene film layer containing polypropylene core fibers, and a low-density polyethylene sheet layer is melted and integrated thereon. The thickness of the obtained plate-like laminate is preferably 2.5 to 4.0 mm, for example 3 mm.

In the plate-like laminate having the configuration shown in FIG. 1, for example, the organic fiber layer 3 is formed from a core-sheath conjugate fiber composed of polypropylene as a core material and polyethylene as a sheath material, and preferably has a basis weight: It is composed of felt having 80 to 350 g / m ² , for example, 150 g / m ² , and the heat-resistant material layer has a polyvinyl alcohol fiber (diameter: 20 to 200 μm, fiber length: 5 to 30 mm, for example, diameter: 40 μm). , Fiber length: 12 mm) as a reinforcing material, and as a matrix, a heat resistant cement material containing cement mortar may be used. In this case, the felt is layered on the reinforcing fiber-containing cement mortar layer, and the cement is cured by curing while pressing the felt. Such a plate-like laminate preferably has a thickness of 4 to 10 mm, for example, 5 mm.

The plate-like laminate of the present invention preferably has a flexural modulus of 1 to 10 ⁴ MPa, and a more preferred flexural modulus is 1 to 100 MPa. When the bending elastic modulus is in the range of 1 to 10 ⁴ MPa, the plate-like laminate can be deformed following the curved surface to be covered of the structure and can be fixed by covering. When the bending elastic modulus is less than 1 MPa, for example, when the plate-like laminate is attached to a ceiling that forms a concave curved surface of the structure, the plate-like laminate is subject to drooping deformation due to gravity applied thereto. There is. Further, when the flexural modulus is high exceeding 1 × 10 ⁴ MPa, it may be difficult to deform the plate-like laminate along the surface to be covered with the structure. In this case, it is necessary to make the thickness of the plate-like laminate extremely thin, or it is necessary to deform and fix it using a large number of mounting brackets, and the cost and labor required for covering attachment may be excessive.

  In the plate-shaped laminate of the present invention, the organic fiber layer is at least one selected from glass fibers, metal fibers (for example, stainless steel fibers), carbon fibers, and slag fibers in addition to meltable synthetic fibers. Inorganic fibers made of may be included. About content of the inorganic fiber in an organic fiber layer, it can set suitably as needed, but it exists in the range of 30-70 volume% with respect to the volume of an organic fiber layer. The inorganic fiber has high heat resistance or flame retardancy, whereby the heat resistance and flame retardancy of the organic fiber layer can be increased, but the content of the inorganic fiber in the organic fiber layer is 85% by mass. Above this, the content of the organic fiber in the organic fiber layer, particularly the synthetic fiber that can be melted, is relatively low, and the melt adhesiveness of the organic fiber layer by high frequency induction heating may be insufficient. Moreover, when the said content rate will be less than 20 mass%, the heat resistance improvement effect of the organic fiber layer by use of an inorganic fiber may become inadequate.

  In the plate-like laminate of the present invention, the organic fiber layer is laminated on at least a part of one surface of the heat-resistant material layer. That is, the organic fiber layer may be laminated on the entire surface of one surface of the heat-resistant material layer, or the organic fiber layer is laminated only on one or more region portions of the one surface of the heat-resistant material layer. It may be exposed without being covered with the organic fiber layer. Or the organic fiber layer is laminated | stacked only on one or more area | region parts of one surface of a heat-resistant material layer, and glass fiber, a metal fiber, a metal wire, slag fiber, and carbon fiber are laminated | stacked on the other area | region part. At least one selected inorganic fiber layer may be laminated. In this case, each of the organic and inorganic resin layers has one side portion facing the heat-resistant material layer taken into the heat-resistant material layer, and the heat-resistant material is inserted into the fiber gap between the organic and inorganic fiber layers. The matrix component in the layer is intruded and filled, whereby the organic and inorganic resin layers are integrally bonded to the heat resistant material layer.

  The inorganic fibers contained in the inorganic fiber layer are glass fiber, basalt fiber, metal fiber (for example, stainless steel fiber), metal wire (for example, stainless steel wire or hard steel having a thickness of 0.03 to 0.10 mm). Wire) etc., slag fiber, and at least one selected from carbon fiber. The inorganic fiber layer can be bonded and fixed to the surface of the structure with an inorganic concrete adhesive (such as Portland cement containing resin and gypsum bond), and exhibits high heat resistance and flame resistance against flames. be able to. For this reason, even when the melt adhesion via the attachment member between the structure surface and the organic fiber layer is lost due to a flame or the like, the adhesion via the concrete bond between the inorganic fiber layer and the structure surface is maintained. The fixation of the plate-like laminate on the surface of the structure can be stably maintained. That is, when the inorganic fiber layer and the structure are bonded with an inorganic concrete adhesive or the like, the adhesive enters and fills the fiber gaps of the inorganic fiber layer, and the inorganic fiber layer and the structure are bonded. It can be firmly joined.

  In the inorganic fiber layer, the inorganic fiber may be any of a knitted fabric, a nonwoven fabric (including a felt-like body), a net-like body, a bundle of wire rods, etc., but the inorganic fiber layer and the heat-resistant material layer Is integrated with the heat-resistant material layer, the one-side portion of the inorganic fiber layer facing the heat-resistant material layer is pushed into the heat-resistant material layer, and the heat-resistant material penetrates into and fills the gap between the inorganic fibers. It is necessary that the fiber layer and the heat-resistant material layer can be bonded together.

  FIG. 5 shows the organic resin layer of the plate-like laminate 1 when the plate-like laminate 1 of the present invention is melt-fixed to a porous structure 8 having a large number of pores 9 on the surface, like a concrete structure. 3 and the surface of the structure 8 are arranged with a mesh sheet 11 made of a metal capable of high-frequency induction heat generation. While pressing the plate-like laminate 1 against the structure surface, the metal mesh sheet 1 When high-frequency induction is generated in more than one part, the meltable polymer of synthetic fibers in the organic fiber layer melts, and the pores distributed on the surface of the structure pass through the openings of the mesh sheet. Intrusion thereby allows the plate-like laminate to be fixed to the structure surface at one or more portions thereof.

As shown in FIG. 6, a coating film 12 made of a thermoplastic resin paint made of a heat-meltable thermoplastic resin may be formed on the coating surface of the porous structure 8. In this manner, the metal mesh sheet 11 that generates high-frequency induction heat is disposed between the organic fiber layer 3 and the thermoplastic resin coating film 12, and the high-frequency induction is applied to a desired portion of the metal mesh sheet 11 while pressing these. By causing heat generation, the meltable polymer of the synthetic fiber in the organic fiber layer and the thermoplastic resin coating film are melted, and these are melt-bonded through the opening of the metal mesh sheet. The plate-like laminate can be fixed on the porous structure 8. The opening ratio of the mesh sheet is preferably 25 to 95%, more preferably 50 to 85% with respect to the total surface area of the mesh sheet.
The meltable polymer in the organic fiber layer and the polymer constituting the thermoplastic resin coating film may be the same or different from each other. It is preferable that it has affinity.
In the plate-like laminate of the present invention, when inorganic fibers that generate heat by high frequency induction are added to the organic fiber layer, the inorganic fibers are converted to high frequency induction heat even if the metal mesh sheet is not disposed. By doing so, it is possible to realize the same melting and fixing as when the metal mesh sheet is arranged.

In the adhesion between the plate-like laminate of the present invention shown in FIG. 7 and the structure 14, a mounting bracket 14 whose surface is coated with a thermoplastic resin and a mounting bracket fixing anchor 15 are used.
In FIG. 7, a mounting bracket 14 with an anchor 15 is driven into a predetermined position on the surface of the structure, and the plate-like laminate 1 of the present invention is disposed on the mounting bracket 14 via a metal mesh sheet 11 for high-frequency induction heat generation. . As shown in FIG. 8, high-frequency induction heat is generated in the mesh sheet 11 while pressing the plate-shaped laminated body 1 toward the mounting bracket 14. Then, the mesh sheet 11 rapidly generates heat, and melts the meltable polymer in the organic fiber layer 5 in contact with the mesh sheet 11 and the thermoplastic resin coating layer covering the mounting bracket 14. The molten resin and polymer are bonded and bonded to each other through the opening of the mesh sheet 11, and when the high frequency induction heat treatment is stopped, the mesh sheet 11 is rapidly cooled and the polymer / resin adhesive is also rapidly Cool to solidify. Then, the plate-shaped laminate 1 can be firmly fixed to the structure 13 via the mounting bracket 14 and the anchor 15. The mounting bracket 14 and the plate-like laminate 1 were melt-bonded to each other through the opening of the mesh sheet 11. The molten polymer of the organic fiber layer 3 and the coating resin of the mounting bracket 14 are stably bonded.
In FIG. 8, a filler or an adhesive 16 may be filled in the gap between the non-bonded portion of the organic fiber layer of the plate-like laminate and the non-bonded portion of the structure 13 as necessary. The filler or adhesive 16 can be appropriately selected from inorganic materials such as cement milk and mortar milk, or organic materials such as unsaturated polyester resins and epoxy resins.

  The shapes and dimensions of the mounting bracket 14 and the anchor 15 shown in FIGS. 7 and 8 are not particularly limited, and those appropriately selected according to the plate-like laminate and the structure may be used.

  When the structure is the earth structure 17 and the surface thereof has a slope, for example, as shown in FIG. 9, the earth structure 17 is almost perpendicular to the slope. A plurality of piles 18 are driven in, and the mounting bracket 14 whose surface is covered with a thermoplastic resin is fixed to the exposed surface of the pile 17 with anchor bolts 15. The plate-like laminate 1 of the present invention is pressed against the head of the mounting bracket 14 with the organic fiber layer (not shown) interposed therebetween via a metal mesh sheet (not shown) capable of high-frequency induction heat generation. The mesh sheet is heated by high frequency induction, and the organic fiber layer and the mounting bracket head are fixed by fusion bonding in the same manner as in FIG.

  In addition, as shown in FIG. 10, when the structure is the earth structure 17 and the surface has a slope, the slope stabilizing plate 19 is placed on the slope of the earth structure. This is fixed by the ground anchor 20. A mounting metal fitting 14 coated with a thermoplastic resin is fixed on the slope stabilizing plate 19 with anchor bolts (not shown), and a metal mesh sheet (not shown) that generates high-frequency induction heat thereon. The plate-like laminate 1 is placed so that its organic fiber layer (not shown) is in contact with the head of the mounting bracket 14, pressed, and the metal mesh sheet is heated by high-frequency induction, In the same manner as in the case of FIG. 8, the plate-like laminate is fixed on the slope stabilizing plate 19 via the mounting bracket 14.

  For the high-frequency induction heat generation, a commercially available device such as a product manufactured by SMART CORPORATION, trademark: EASY WELDER (frequency 20 kHz, output 500 W) can be used.

  11- (A) and (B), in the width direction on one or more region portions (one region portion in FIG. 11) of one surface of the heat-resistant material layer 2 of the plate-like laminate 1 of the present invention. One extending organic fiber layer 3 is formed. The heat-resistant material layer 2 is exposed in the region of the plate-like laminate that is not covered with the organic fiber layer. The plate-like laminate 1 is bonded and fixed to a structure (not shown) at one or more joints (not shown) in the organic fiber layer 3 formed in the region portion.

  In FIG. 12- (A) and (B), the organic fiber layer 3 is formed in the three striped part extended in parallel with the longitudinal direction of the heat-resistant material layer 2 of the plate-shaped laminated body 1 of this invention. Yes. FIGS. 12- (A) and (B) show an example in which three organic fiber layers 3 are formed on both side edges and the center of the heat-resistant material layer 2, but any region portion. One or more organic resin layers 3 may be formed, and a region of the heat-resistant material layer 2 that is not covered with the organic fiber layer 3 is exposed. The plate-like laminate 1 is fixed to the structure in the region where the organic fiber layer 3 is laminated.

In one example of the plate-like laminate 1 of the present invention shown in FIG. 13, the heat-resistant material layer 2 is divided into a plurality of region portions spaced apart from each other in the longitudinal direction and the width direction. The organic fiber layer 3 is laminated and fixed, and the heat-resistant material layer is exposed in a lattice shape between the organic fiber layers 3.
The plate-like laminate 1 shown in FIG. 13 is bonded and fixed to a structure in a region where the organic fiber layer 3 is formed.

  11-13, the organic fiber layer 3 is arrange | positioned in the area | region part spaced apart from others in the aspect of the plate-shaped laminated body of this invention shown by FIGS. When the plate-like laminate of the present invention is bonded and fixed to a structure, if the fixing part is heated, for example, by a fire, the meltable polymer of the fixing part melts. May peel from objects. In such a case, if the adhesive fixing part in the organic fiber layer is in a region part that is separated from each other, even if a part of the plate-like laminate is in contact with the flame, the plate-like lamination by spreading the organic fiber layer It is possible to prevent or delay the subsequent peeling of the body.

FIG. 14 shows an example in which a plate-like laminate having the organic fiber layer arrangement illustrated in FIGS. 11- (A) and (B) is covered and fixed on the concave curved surface of the structure. In FIG. 14, the tripolar plate-like laminate is bonded and fixed to the concave curved surface of the structure using the mounting bracket 14 and the anchor bolt 15 in the region where the organic fiber layer 3 is laminated. Yes. In this case, although not shown in FIG. 14, the meltable polymer of the synthetic fiber in the organic fiber layer 3 and the thermoplastic resin covering the mounting bracket 14 are a metal disposed in the middle thereof. The mesh sheets (not shown) are heated and melted by high-frequency induction heat generation, and are melt-bonded to each other through the openings of the mesh sheets. In FIG. 14, the three plate-like laminates are arranged along the concave curved surface of the structure, and the edge portions facing each other are separated from each other, and the edge portions are made of an inorganic adhesive. 21 (for example, resin-containing mortar) is adhered to the concave curved surface of the structure. The space | interval of the edge part which mutually separates the plate-shaped laminated body 1 may be filled with the inorganic filler or the inorganic adhesive agent.
Further, the gap between the exposed surface of the heat-resistant material layer of the plate-like laminate and the surface of the structure is not filled with an inorganic filler or an inorganic adhesive (not shown) as necessary.

  15- (A) and (B), the organic fiber layer 3 is formed in the area | region part which makes stripe shape in the width direction which makes a right angle to the longitudinal direction of the heat-resistant material layer 2 in the plate-shaped laminated body 1a. In addition, the inorganic fiber layer 22 is formed in other striped region portions.

  16- (A) and (B), the organic fiber layer 3 is formed in three strips spaced apart from each other along the longitudinal direction of the heat-resistant material layer 2. The inorganic fiber layer 22 is formed in two stripes between them.

  In the plate-like laminate 1a shown in FIG. 17, the organic fiber layer 3 is formed in a plurality of regions separated from each other on one surface of the heat-resistant material layer, and the inorganic fiber layer 22 is formed in other regions. ing. 4 and 5, the inorganic fiber layer 22 is formed in a continuous lattice shape between the plurality of organic fiber layers 3 that are separated from each other. The organic fiber layer 3 is formed in a region necessary for firmly fixing the plate-like laminate to the desired surface of the structure. The inorganic fiber layer may be formed on the entire surface of the region where the organic fiber layer is not formed, or may be formed only on a part thereof.

In FIG. 18, an example of covering and fixing three plate-like laminates 1a in which organic and inorganic fiber layers are arranged as shown in FIGS. 15- (A) and (B) on a concave curved surface of a structure. It is shown. The organic fiber layer 3 is formed in the center part of the plate-shaped laminated body 1a, and the inorganic fiber layer 22 is formed in the other part. In the region of the organic fiber layer 3, the plate-like laminate 1 a is fixed to the concave curved surface of the structure 13 via a mounting bracket 14, an anchor bolt 15 and a metal mesh sheet (not shown). The joining and fixing are performed in the same manner as in the case of the organic fiber layer 3 of the plate-like laminate shown in FIG. The edge portions of adjacent plate-like laminates 1a are bonded by the inorganic adhesive 21 and bonded to the curved surface of the structure. A gap between adjacent edge portions of the plate-like laminate 1a may be filled with an inorganic filler or an inorganic adhesive.
Moreover, the inorganic fiber layer and the curved surface of the structure may be bonded to the entire surface or a part thereof with an inorganic adhesive as necessary.

The plate-like laminate for covering a structure of the present invention and the mounting method thereof use an organic fiber layer containing a synthetic fiber containing a polymer that is firmly bonded and integrated with a heat-resistant material layer and can be melted. By the induction heating method, the structure can be easily covered and fixed firmly in a short time.
Therefore, the structure-coated plate-like laminate of the present invention and its mounting method are practically useful for heat resistance, waterproofing, water shielding, corrosion prevention, and smoothing work on the surface of the structure.

Cross-sectional explanatory drawing of an example of the plate-shaped laminated body for structure covering of this invention. Cross-sectional explanatory drawing of the other example of the plate-shaped laminated body for structure covering of this invention. Cross-sectional explanatory drawing of the other example of the plate-shaped laminated body for structure covering of this invention. Cross-sectional explanatory drawing of the other example of the plate-shaped laminated body for structure covering of this invention. Sectional explanatory drawing which shows an example of the mounting | wearing method of this invention which mounts the plate-shaped laminated body for structure coating | cover of this invention to a structure. Cross-sectional explanatory drawing which shows the other example of the mounting | wearing method of this invention which mounts the plate-shaped laminated body for structure covering of this invention to a structure. Cross-sectional explanatory drawing which shows the material arrangement | positioning of the other example of the mounting | wearing method of this invention which mounts | wears a structure with the plate-shaped laminated body for structure covering of this invention. Cross-sectional explanatory drawing which shows the mounting state by the other example of the mounting | wearing method of this invention which mounts the plate-shaped laminated body for structure covering of this invention to a structure. Cross-sectional explanatory drawing which shows an example of the mounting | wearing method of this invention which mounts the laminated body for structure coating of this invention to a earth structure. Cross-sectional explanatory drawing which shows the other example of the mounting method of this invention which mounts the laminated body for structure coating of this invention to a soil structure. FIG. 11-A is a cross-sectional explanatory view showing an example of another embodiment of the structure-coated plate-like laminate of the present invention, and FIG. 11-B is a backside explanatory view of the plate-like laminate of FIG. FIG. 12-A is a cross-sectional explanatory view showing another example of another embodiment of the plate-like laminate for covering a structure of the present invention, and FIG. 12-B is the back side of the plate-like laminate of FIG. Illustration. The back surface explanatory drawing of the other example of the other embodiment of the plate-shaped laminated body for structure covering of this invention. Cross-sectional explanatory drawing which shows the mounting | wearing method of this invention using an example of the other embodiment of the plate-shaped laminated body for structure covering of this invention. FIG. 15-A is a cross-sectional explanatory view showing an example of another embodiment of the structure-coated plate-like laminate of the present invention, and FIG. 15-B is a backside explanatory view of the plate-like laminate of FIG. . FIG. 16-A is a cross-sectional explanatory view of another example of another embodiment of the structure-coated plate-like laminate of the present invention, and FIG. 16-B is a back side explanation of the plate-like laminate of FIG. 16-A. Figure. FIG. 17-A is a backside explanatory view of another example of another embodiment of the structure-coated plate-like laminate of the present invention. Cross-sectional explanatory drawing which shows an example of the method of mounting | wearing the plate-shaped laminated body for structure covering of this invention on the concave curved surface of a structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1a Plate-shaped laminated body for structure coating | cover 2 Heat resistant material layer 3 Organic fiber layer 3a The part of the organic fiber layer taken in and integrated in the heat resistant material layer 3b It is outside the heat resistant material layer of the organic fiber layer Portion 4 between the portion 4 of the heat-resistant material layer and the portion of the organic fiber layer outside the heat-resistant material layer 5 Outside the heat-resistant material layer of the organic fiber layer in which the synthetic fibers are fused or filmed Part 6 Organic material layer having a three-dimensional knitted fabric structure 7 Thermoplastic resin sheet layer 8 Porous structure 9 Pore 11 Metal mesh that generates high-frequency induction heat 12 Thermoplastic resin coating 13 Structure 14 Installation covered with thermoplastic resin Metal fitting 15 Anchor for fixing metal fitting 16 Filler 17 Earth structure 18 Pile 19 Slope stabilization plate 20 Ground anchor 21 Inorganic adhesive 22 Inorganic fiber layer

Claims (11)

Heat-resistant thermoplastic resin, thermosetting resin, heat-resistant thermoplastic resin containing reinforcing fiber, thermosetting resin containing reinforcing fiber, heat-resistant rubber, heat-resistant rubber containing reinforcing fiber, concrete containing reinforcing fiber, polymer concrete containing reinforcing fiber, and inorganic oxidation A heat-resistant material layer containing at least one selected from materials,
An organic fiber layer that is laminated on at least a part of one surface of the heat-resistant material layer and includes a synthetic fiber including a heat-meltable polymer;
One side portion of the organic fiber layer facing the heat-resistant material layer is taken into the heat-resistant material layer, and the organic fiber layer and the heat-resistant material layer are integrated in a plate shape. A plate-like laminate for covering a structure.   The plate-like laminate for covering a structure according to claim 1, wherein the surface of the heat-resistant material layer is formed of the inorganic oxide, and the initial luminous reflectance of the surface is 65% or more.   In the organic fiber layer, at least a part of the synthetic fiber in the opposite one side portion not taken into the heat-resistant material layer is melted, so that the synthetic fibers are fused to each other or are film-like. The plate-like laminated body for covering a structure according to claim 1, which is formed.   At least a part of the synthetic fibers contained in the organic fiber layer is a conjugate fiber having a core-sheath structure, and the polymer constituting the sheath part has a lower melting temperature than the polymer constituting the core part. The plate-like laminate for covering a structure according to any one of claims 1 to 3.   The plate-like laminate for covering a structure according to any one of claims 1 to 3, wherein the organic fiber layer contains two or more kinds of synthetic fibers having different melting temperatures.   The plate-like laminate for covering a structure according to any one of claims 1 to 3, wherein the synthetic fiber is contained in a three-dimensional knitted fabric in at least a part of the organic fiber layer. The plate-like laminate for covering a structure according to any one of claims 1 to 3, wherein the plate-like laminate has a flexural modulus in the range of 1 to 10 ⁴ MPa.   The organic fiber layer includes at least one kind of inorganic fiber selected from glass fiber, metal fiber, carbon fiber, and slag fiber in addition to the meltable synthetic fiber. 2. A plate-like laminate for covering a structure according to 1.   The organic fiber layer is laminated on a part of one surface of the heat-resistant material layer, and at least one selected from glass fiber, metal fiber, metal wire, slag fiber, and carbon fiber on the other surface of the heat-resistant material layer. An inorganic fiber layer made of various kinds of inorganic fibers is laminated, and one side portion of the organic and inorganic fiber layers facing the heat-resistant material layer is taken into the heat-resistant material layer, and the organic and inorganic fiber layers The plate laminate for covering a structure according to any one of claims 1 to 3 and 8, wherein the heat-resistant material layer is integrated into a plate shape.   On the surface of the structure, the plate laminate for covering a structure according to any one of claims 1 to 8 is placed so that the organic fiber layer side faces the surface of the structure, At this time, between the organic fiber layer and the surface of the structure, a mesh made of a metal having high frequency induction heat generation is interposed, the metal mesh is heated by high frequency induction, and the organic fiber layer is melted. A mounting method for a plate laminate for covering a structure, wherein the organic fiber layer is melt-bonded onto the surface of the structure.   The plate laminate for covering a structure according to claim 9 is placed on the surface of the structure so that the organic fiber layer and the inorganic fiber layer face the surface of the structure, and the inorganic fiber The layer and the surface of the structure facing the layer are bonded with an inorganic adhesive, and the synthetic fiber-containing fiber layer and the structure surface facing the layer have high-frequency induction heat generation properties. A structure-covering plate in which a metal mesh is interposed, the metal mesh is heated by high-frequency induction, the synthetic fiber in the organic fiber layer is melted, and the organic fiber layer is melt-bonded onto the structure surface. Mounting method of the laminated laminate.

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