JP4033078B2 - PC curtain wall - Google Patents

Description

The present invention is related to P C curtain walls Ru with the outer wall of the building.

  As a method of attaching an outer wall decorative material such as tiles to the outer wall of a building and generally making an outer wall, a plywood or a calc board is used as a base, and a net is attached to the base as a reinforcing material. The base mortar was applied and cured, and then the adhesive mortar was applied thereon to adhere the outer wall decorative material. In addition, there is also known a method of performing an outer heat insulating work simultaneously with an outer wall decorative work by using a heat insulating material as a base material. For example, in Japanese Patent Application Laid-Open No. 2002-220886, a heat insulating material is pasted on the outer surface of a housing that forms the outer wall of a building, and then a mortar containing short fibers is applied to the surface of the heat insulating material with a trowel. Next, apply the mortar of the second layer with a trowel and brush it, and after the mortar has hardened, fix the net to the housing with anchor bolts, apply the base mortar on the mortar of the second layer, and cure After that, a tiled outer insulation method in which a mortar is applied and a tile is attached has been proposed.

  However, these conventional methods require many operations such as attaching a net on site, applying and curing a base mortar, and further applying an adhesive mortar thereon when attaching an outer wall decorative material such as a tile. There is a problem that a great deal of labor is required and the construction period is long.

  Japanese Patent Application Laid-Open No. 11-62168 has a structure in which a napped fabric is attached to the outer side which is the surface to which a finishing material of a base molding plate such as a calcium plate is attached as a base material to which a finishing material such as a tile is bonded. Proposed. In this base material, by applying mortar on the napped fabric and attaching a finishing material such as a tile, the napped yarn part of the napped fabric is applied in the mortar to serve as an anchor, and the bonding of the finished material It has the advantage that the strength can be increased and therefore the work of pasting the finish can be simplified. However, with this base material, when the mortar is applied on the napped fabric, the napped yarn portion may be crushed, and the anchor effect may not be sufficiently exhibited.

Even in the construction method using a PC curtain wall, it is required to easily perform exterior wall decoration and insulation, and a PC curtain wall having an exterior wall decorative surface and an exterior insulation structure is proposed in Japanese Patent Laid-Open No. 2002-339469. Has been. The PC curtain wall proposed in this publication has a structure in which an exterior material is attached to the outer wall surface of the panel structure, and the exterior material adhered to the back surface of the exterior material between the exterior material and the panel structure. A scattering prevention net and a heat insulating plate are arranged, and the exterior material is held on the panel structure by a locking tool. However, this PC curtain wall is limited to a plate material that is considerably wide and thick (for example, a natural stone plate or an artificial stone plate having a plate thickness of 15 to 30 mm) because the exterior material is fixed to the panel structure by a locking tool. Therefore, there is a problem that it cannot be applied when a large number of tiles are pasted.
JP 2002-220886 A JP-A-11-62168 JP 2002-339469 A

The present invention is a simple process, so that can form an outer wall of the outer heat insulating structure subjected to external wall makeup, and aims to provide a thermal insulation PC curtain wall with an outer wall decorative material and the heat insulating material layer in advance tiles etc. To do.

In order to solve the above-described problems, a heat-insulating PC curtain wall of the present invention comprises an outer wall decorative material, an adhesive mortar, a nonwoven fabric sheet impregnated with a polymer cement on the surface in contact with the adhesive mortar, and a ceramic board layer. A foam heat insulating material layer and a driving mortar layer are laminated and integrated, and a fastener bolt penetrates from the nonwoven fabric sheet to the driving mortar layer, and the end of the fastener bolt is a plastic in the driving mortar layer. The structure is connected to an anchor .

The polymer cement impregnated in the nonwoven fabric sheet is provided so as to exhibit good adhesion to concrete, cement, mortar, etc., and the polymer used for the polymer cement has good compatibility with the cement. Those having alkali resistance are used. Specifically, examples of the polymer include a polyacrylic acid ester copolymer, an ethylene vinyl acetate copolymer, and SBR. The mixing ratio of polymer to cement is preferably 20 to 60 parts by weight of polymer with respect to 100 parts by weight of cement. If the ratio of the polymer is reduced, the fluidity when impregnating the polymer cement liquid into the nonwoven fabric sheet becomes insufficient and impregnation becomes difficult, and the nonwoven fabric sheet after impregnating the polymer cement becomes too hard and winding is difficult. It becomes. On the other hand, the higher the polymer ratio, the higher the cost. For this reason, it is preferable to determine as described above. The amount of impregnation per unit area of the polymer cement on the nonwoven fabric sheet surface is preferably 500 to 1200 g / m ² . When the amount of impregnation decreases, the effect of impregnating the polymer cement decreases, while when the amount increases, the cost increases and the sheet after impregnating the polymer cement becomes too hard and winding becomes difficult. For this reason, it is preferable to determine as described above.

The non-woven fabric sheet can be impregnated with polymer cement on one side and can be joined so as to be integrated with the ceramic board layer on the opposite side and is provided with alkali resistance, In particular, a material having a large number of voids on both surfaces or a large number of three-dimensionally arranged fibers on both surfaces (a large number of voids between fibers are present so that a good anchoring effect can be exerted on the material bonded to both surfaces. Those having a fiber) arranged in a form to be formed are preferred. As a suitable example of a nonwoven fabric sheet, it is made by needling an alkali resistant fiber (which may be either a short fiber or a long fiber) to a base material sheet made of an alkali resistant material, and per area thereof. Of 80 to 200 g / m ² can be mentioned. The base sheet used here is arbitrary as long as it has a strength capable of supporting the fibers to be needled, and a nonwoven fabric, a spunbond, a woven fabric, paper, a sheet, a film, and the like can be used. Examples of materials such as nonwoven fabric, spunbond, and woven fabric used as the base sheet include alkali-resistant fibers such as polyester, nylon, vinylon, acrylic, and polypropylene. In addition, materials such as sheet and film also include polyester and nylon. Examples thereof include alkali-resistant resins such as vinylon, acrylic and polypropylene. Examples of the fibers that are attached to the base sheet by needling include alkali-resistant fibers such as polyester, nylon, vinylon, acrylic, and polypropylene. The length and thickness of the fiber may be determined such that the fiber is held on the base sheet by needling and can be present in a three-dimensional form with appropriate rigidity on both sides. If the length is about 20 mm or more, either a long fiber or a short fiber may be used, and the thickness is preferably about 10 to 300 denier.

The foam heat insulating material layer used for the heat insulating PC curtain wall of the present invention preferably has heat insulating properties and appropriate strength and rigidity. For this reason, any one of phenol foam, styrene foam and urethane foam is used. It is preferable to comprise. The foam insulation layer may be formed by integrally bonded to the kiln industry system board layer using an adhesive obtained by forming in advance a plate shape, for foam insulation produced on the kiln industry based board layer You may form by pouring a raw material liquid and performing direct foam molding. The thickness of the foam heat insulating material layer may be appropriately determined according to the required heat insulating properties, and is usually selected to be about 15 to 60 mm.

The ceramic board layer used in the heat-insulating PC curtain wall of the present invention has rigidity, strength, flatness, etc. suitable for holding an outer wall decorative material such as a tile. As a suitable example, a fiber cement board , Cement calcium silicate board, calcium silicate board, slag gypsum board, magnesium carbonate board, magnesium cement board, and the like. The thing of the structure where the glass fiber net was embed | buried can be mentioned. This structure has the advantages of high strength and rigidity, and excellent dimensional stability and heat resistance. The ceramic board layer may be formed by pre-molding it into a non-woven sheet using an adhesive, or by pouring the raw material for manufacturing ceramic board on the non-woven sheet. May be formed. The thickness of the ceramic board layer may be appropriately determined according to required strength, rigidity, etc., and is usually selected to be about 3 to 20 mm.

Since the heat insulating PC curtain wall of the present invention includes the outer wall decorative material and the foam heat insulating material layer, the outer wall can be formed by using the outer wall decorative material and the foam heat insulating material layer, thereby forming the wall of the outer heat insulating structure in which the outer wall decorative material is arranged on the outer surface. , it is possible to process steps, and construction time. Moreover, in the formed outer wall, the surface from which the nonwoven fabric sheet to the driving mortar layer is fixed with fastener bolts, and the surface on which the adhesive mortar of the nonwoven fabric sheet is applied is a structure in which the nonwoven fabric surface layer is impregnated with polymer cement. It is excellent in adhesion to the adhesive mortar. For this reason, the outer wall decorative material on the surface is in a state of being firmly fixed to the driving mortar layer, and the adhesion stability of the decorative surface is large.

FIG. 1 shows a base panel 10 used for manufacturing a heat-insulated PC curtain wall according to a preferred embodiment of the present invention and a manufacturing procedure thereof. A base panel 10 having a cross section shown in FIG. 1 ( d ) has a nonwoven fabric sheet 3 impregnated with one side of the polymer cement 2 and a surface of the nonwoven fabric sheet 3 opposite to the side impregnated with the polymer cement 2. It has a structure including a bonded ceramic board layer 4 and a foam heat insulating material layer 11 bonded to the surface of the ceramic board layer 4 opposite to the nonwoven fabric sheet 3 side. As shown in FIG. 1 (a), the sheet 3 is formed such that fibers 3b such as vinylon are needling on a base sheet 3a such as spunbond so that the fibers 3b exist in a three-dimensional form on both sides. Is used. In order to manufacture the base panel 10 , first, the nonwoven fabric sheet 3 shown in FIG. 1 (a) is prepared, and then liquid polymer cement is applied to one side of the nonwoven fabric sheet 3 and cured to obtain FIG. 1 (b). As shown in FIG. 3, the nonwoven fabric sheet 3 is impregnated with the polymer cement 2 on one side, and then the nonwoven fabric sheet 3 is placed in a mold (not shown) with the side opposite to the polymer cement impregnation side facing upward. Set, and then hydrate and cure the raw material for manufacturing ceramic board. Thereby, as shown in FIG.1 (c), the laminated body 1A of the structure which integrally laminated the nonwoven fabric sheet 3 and the ceramics system board layer 4 is manufactured . In the obtained laminated body 1A , the fibers 3b of the nonwoven fabric sheet 3 are embedded in the ceramic board layer 4, and the anchoring effect of the nonwoven fabric sheet 3 and the ceramic board layer 4 is extremely high. It is getting bigger. The ceramic board layer 4 may be formed by attaching a preformed ceramic board to the nonwoven fabric sheet 3 with an adhesive.

Later, the laminated body 1A, was set in a mold in the upward ceramic based board layer 4 side, the foamed cured by pouring foam insulation raw material for producing on, molded into a desired shape. Thus, it can be produced a base panel 10 shown in FIG. 1 (d).

Figure 2 is a schematic cross-sectional view of a heat insulating PC curtains The Wall 2 0 according to a preferred embodiment of the present invention. The heat-insulating PC curtain wall 20 includes, from one surface, an outer wall decorative material 8 such as a tile, an adhesive mortar 7, a non-woven sheet 3 impregnated with polymer cement on the surface in contact with the adhesive mortar, a ceramic board layer 4, The foamed heat insulating material layer 11 and the driving mortar layer 22 with the PC bar arrangement 21 are laminated and integrated, and the fastener bolt 6b penetrates from the nonwoven fabric sheet 3 to the driving mortar layer 22, and ends of the fastener bolt 6b. The portion is configured to be connected to an anchor 6 a such as a plastic anchor in the driving mortar layer 22. Here, 10 A of laminated bodies which consist of the nonwoven fabric sheet 3, the ceramics system board layer 4, and the foam heat insulating material layer 11 are the same as the base panel 10 shown in FIG.

Next, the manufacturing method of this heat insulation PC curtain wall 20 is demonstrated. First, as shown in FIG. 3 (a), a laminate 10A (substantially the same as the base panel 10 shown in FIG. 1 ) comprising a nonwoven fabric sheet 3, a ceramic board layer 4 and a foam heat insulating material layer 11 is prepared. And the fastener bolt 6b is penetrated and attached to the laminated body 10A, and the anchor 6a is connected with the edge part by the side of the foam heat insulating material layer 11. FIG. Next, as shown in FIG. 3 (b), an adhesive mortar 7 to the polymer cement impregnated nonwoven sheet 3 side of the surface of the laminate 10A and coating, paste exterior wall decorative material 8, such as tiles thereon. Thereafter, as shown in FIG. 3 (c), the laminate 10A was set in the mold 25 with the foam heat insulating material layer 11 side up, and the PC bar arrangement 21 was placed thereon, The mortar is driven and the driving mortar layer 22 is laminated and integrated. Thus, the heat insulating PC curtain wall 20 having the cross-sectional configuration shown in FIG. 2 is formed.

The obtained heat insulating PC curtain wall 20 has a configuration in which the outer wall decorative material 8 is firmly fixed to the polymer cement impregnated surface of the nonwoven fabric sheet 3 via the adhesive mortar 7, and the outer wall decorative material 8 is provided. The foamed heat insulating material layer 11 is provided between the outer surface and the driven mortar layer 22. Therefore, the adiabatic PC curtain wall by forming an outer wall of a building using, can form a wall of the outer heat insulating structure attached firmly to the outer wall decorative material on the outer surface, it is possible to achieve process steps, and construction time .

P C curtain wall Ru engaged to the present invention, like the conventional PC curtain wall, it can be used in PC curtain wall construction method, which makes it possible to construction time.

(A) is a schematic sectional view of a nonwoven fabric sheet, (b) is a schematic sectional view of a nonwoven fabric sheet impregnated with polymer cement, (c) is a schematic sectional view of a laminate in which a ceramic board layer is laminated on a nonwoven fabric sheet, d) is a schematic cross-sectional view of a base panel used for manufacturing a heat-insulated PC curtain wall according to an embodiment of the present invention Schematic sectional view of a heat insulating PC curtain wall according to an embodiment of the present invention (A ) is schematic sectional drawing which shows the laminated body used for manufacture of the heat insulation PC curtain wall shown in FIG. 2, (b) is schematic sectional drawing which shows the state which gave the outer wall makeup | decoration on the surface of the laminated body, (c) is Schematic cross-sectional view showing a state in which mortar is driven onto the laminate

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A Laminated body 2 Polymer cement 3 Nonwoven fabric sheet 3a Base material sheet 3b Fiber 4 Ceramics board layer 6a Anchor 6b Fastener bolt 7 Adhesive mortar 8 Exterior wall decorative material 10 Base panel 10A Laminated body 20 Thermal insulation PC curtain wall 21 PC reinforcement 22 Strike Mortar layer 25 formwork

Claims (3)

From one surface, the outer wall decorative material, adhesive mortar, the non-woven sheet impregnated with polymer cement on the surface in contact with the adhesive mortar, the ceramic board layer, the foam insulation layer, and the driving mortar layer are laminated and integrated. A heat-insulating PC curtain wall in which fastener bolts penetrate from the nonwoven fabric sheet to the driving mortar layer, and an end portion of the fastener bolt is connected to a plastic anchor in the driving mortar layer . The polymer of the polymer cement has good compatibility with the cement, and the mixing ratio with respect to the cement is 20 to 60 parts by weight with respect to 100 parts by weight of the cement. The heat insulation PC curtain wall of Claim 1 whose impregnation amount is 500-1200 g / m < ² > . The nonwoven fabric sheet, which has been made by needling the alkali resistance of the fibers configured substrate sheet alkali resistant material, weight per area thereof is at 80 to 200 g / m ^2, claim The heat-insulating PC curtain wall according to 1 or 2 .

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