JP2010064373A - Manufacturing method of heat insulating precast concrete panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method facilitating the manufacturing of a heat insulating precast concrete panel on which hard cladding such as a stone, a tile and a metal panel are applied. <P>SOLUTION: The production process comprises an operation to stack a heat insulating member 4 in a state that a shear connector 6 protrudes from a perforation and an air stratum 2 is formed of a step 8 between the back face of a hard cladding 5 and the heat insulating member 4 and an operation to unify the hard cladding 5, the heat insulating member 4 and a precast concrete panel A by applying a bar arrangement 9 and concrete on the heat insulating member: provided that in the heat insulating member 4, a plurality of sheets of hard claddings 5 are paved on a mold platen B in a state that the shear connector 6 is protruded from backside of them, perforations 7 are formed for respective positions on the hard claddings 5 corresponding to the shear connector 6 and the step 8 enclosing the circumference of the perforation is formed wherein the shear connector connects the hard claddings 5 and a precast concrete panel 1 as an anchor member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a method for manufacturing a heat insulating precast concrete panel used as an outer wall of an outer heat insulating structure, and in particular, a heat insulating material for forming a heat insulating layer having an air layer on the surface of the precast concrete panel, stone, tile, metal The present invention relates to a method for manufacturing a heat insulating precast concrete panel in which a hard exterior finishing material such as a panel is laminated in this order.

  A heat insulating precast concrete panel in which two precast concrete plates are connected in a state where a gap portion is formed by a solid truss bar and a heat insulating material and an air layer forming material are provided in the gap portion is known from Patent Document 1. . Patent Document 1 describes that one of the precast concrete plates includes an exterior concrete plate.

  Further, Patent Document 2 is connected to a state in which a gap portion is formed by a hollow square member in which two precast concrete plates inside and outside are fixed to wall bars embedded therein, and a heat insulating material is provided on one side of the gap portion. Spacer bolts that are provided across the perforated plate with a stool attached to the perforated plate and a stool (special shaped bracket) embedded in the outer precast concrete plate, through which the air layer protrudes. A heat-insulated precast concrete panel provided with a hard exterior finish such as a tile on the outer surface of an outer precast concrete plate is disclosed.

  Since the above heat-insulated precast concrete panel is provided with an air layer and a heat insulating material between two precast concrete plates, the heat insulating effect is high, and it is effective in reducing the heat load caused by solar heat load and night radiation. However, in each of these conventional examples, after the first precast concrete plate is formed, a heat insulating material and an air layer forming material are arranged on one side, and then the second precast concrete plate is formed. A manufacturing process is required. For this reason, there are problems that the number of manufacturing processes is large, the production amount in the factory is greatly affected, and the initial cost is high.

  Patent Document 3 has already proposed a method for producing a heat-insulated precast concrete panel that solves such a large number of production steps and problems caused by the production steps. That is, in Patent Document 3, a foamed plastic board and a cement-based board are laminated in this order on the surface of a precast concrete panel, and a plurality of ridges are provided on the surface of the foamed plastic board on the cement-based board side. In addition, an insulating precast concrete panel having an outer heat insulating structure in which a hollow portion communicating with outside air is formed between a foamed plastic board and a cement-based board is described. As the cement board, wood wool cement board, lightweight concrete board is used, and it has three heat insulation layers consisting of a heat insulation layer by the cement board, a heat insulation layer by the cavity, and a heat insulation layer by the foamed plastic board. It is described that an outer heat insulating structure is formed.

A plurality of anchor members penetrating the cement board (screws are used as the anchor members and the cement board and the foam plastic board are temporarily fixed) are attached to the cement board. Attached so as to protrude more than the thickness of the board, and after temporarily fixing the foamed plastic board by laminating the cemented board, the temporarily fixed cemented board and the foamed plastic board were assembled on the surface plate. After placing the cement-based board in the mold, and then placing the reinforcement on the foamed plastic board, the concrete is cast and cured in the mold to form the precast concrete panel. To embed the anchor member in this precast concrete panel Ri, wherein the precast concrete panel connects the cementitious board, the manufacturing method of the heat insulating precast concrete panels to be integrated with the cementitious board foamed plastic board and precast concrete panels is described in Patent Document 3.

  According to this method for manufacturing a heat insulating precast concrete panel, a cement-based board and a precast concrete panel are integrated into a state in which a hollow portion and a heat insulating material are sandwiched by a single concrete placement. The number of steps can be reduced, and the above-mentioned problems can be solved.

  However, this manufacturing method has the following problems. First, in the above manufacturing method, the cement board and the foamed plastic board are temporarily fixed with screws screwed from the surface side of the cement board, and the tip side of the screws is required for fixing from the foam plastic board. Since it is made to protrude as an anchor member for the precast concrete panel, it is difficult to manufacture a heat insulating precast concrete panel to which a hard exterior finishing material such as a stone or a tile that cannot be screwed is attached.

  Incidentally, in Patent Document 3, this heat-insulated precast concrete panel is built with a cement-based board on the outside, but since its material is cement-based, it has good adhesion to mortar and cement. Therefore, it is described that various exterior operations such as mortar finishing and tile finishing can be easily performed. However, since screws cannot be screwed in after the tile is attached to the surface of the cement-based board, it is possible to either tile the surface of the cement-based board after manufacture of the heat-insulated precast concrete panel or after installation on the frame, or to install the cement-based board. And after temporarily fixing the foam plastic board, it will have to be tiled.

  Second, the work of temporarily fixing the cement board and the foamed plastic board with screws screwed in from the surface side of the cement board must be performed before placing on the surface plate. The work procedure of placing the foamed plastic board on it and temporarily fixing it with screws cannot be adopted. Moreover, screw screwing work is usually downward, so a cement board is placed on the foam plastic board, and the screw is screwed onto the cement board to temporarily fix the cement board and the foam plastic board. In addition, it is necessary to invert them upside down and place them on a surface plate.

Japanese Patent No. 3696126 JP 2002-294896 A JP 2006-315318 A

  The present invention has been made in view of the above problems, and the object of the present invention is to easily provide a heat-insulated precast concrete panel to which a hard exterior finishing material such as a stone, a tile, or a metal panel is attached. It is to provide a manufacturing method that can be manufactured.

The technical means taken by the present invention in order to achieve the above object are as follows. That is, the invention according to claim 1 is a method for manufacturing a heat-insulated precast concrete panel in which a heat insulating material for forming a heat insulating layer having an air layer and a hard exterior finish material are laminated in this order on the surface of the precast concrete panel. A method of arranging a plurality of hard exterior finish materials on a surface plate in a state in which an anchor member for connecting the hard exterior finish material and the precast concrete panel protrudes from the back side of the hard exterior finish materials. On the material, a heat insulating material in which a through hole is formed at each position corresponding to the anchor member and a step portion surrounding the periphery of the through hole is formed. Layering in a state where an air layer is formed between the back surface of the heat insulating material and the heat insulating material, placing reinforcement and concrete on the heat insulating material, It is characterized by a step of integrating the lower material and insulation and precast concrete panels.

  Invention of Claim 2 is a manufacturing method of the heat insulation precast concrete panel of Claim 1, Comprising: Both ends are inserted and hooked into a pair of hole formed in the back surface of hard exterior finishing material as an anchor member It is characterized by using a steel wire shear connector.

  Invention of Claim 3 is a manufacturing method of the heat insulation precast concrete panel of Claim 1, Comprising: A hard exterior finishing material is used for the side surface of the flat plate part inserted in the joint of a hard exterior finishing material as an anchor member. A dowel pin to be inserted into the side hole formed on the side of the plate is provided, and the first flange part for flowing the load applied to the shear connector to the surface plate via the heat insulating material and the precast concrete panel attached to the concrete above the flat plate part It is characterized by using a shear connector provided with a second flange portion for securing the attachment force.

  Invention of Claim 4 is the manufacturing method of the heat insulation precast concrete panel in any one of Claims 1-3, Comprising: By laying out in a state where a plurality of hard exterior finishing materials are mutually gap, It is characterized in that the air layer of the heat insulating layer is communicated with the outside air through a gap between the hard exterior finish materials.

  According to invention of Claim 1, the heat insulating precast concrete panel by which the heat insulating material which forms the heat insulation layer provided with the air layer on the surface of the precast concrete panel, and the hard exterior finishing material was laminated | stacked in this order easily Can be manufactured. That is, since the invention according to claim 1 has the above configuration, the anchor member inserted into the through hole of the heat insulating material is embedded in the precast concrete panel so that the hard exterior finish material, the heat insulating material, and the precast concrete panel are embedded. Are integrated, and the air layer between the hard exterior finishing material and the heat insulating material is formed by the step portion of the heat insulating material surrounding the through hole. Therefore, by placing a plurality of hard exterior finish materials on a surface plate, placing a heat insulating material thereon, placing reinforcement and placing concrete on the heat insulating material, stones, tiles, Insulating precast concrete panels to which hard exterior finishing materials such as metal panels are attached can be easily manufactured.

  However, if necessary, place a plurality of hard exterior finish materials in a place other than the surface plate in advance, place a heat insulating material on them, temporarily fix it with an adhesive, and place this on the surface plate. It is also possible to adopt a work procedure such as mounting. Also in this case, since it is not necessary to invert the hard exterior finish material and the heat insulating material up and down, it is easy to manufacture the heat insulating precast concrete panel.

  According to the second aspect of the present invention, since the anchor member is a steel wire shear connector that is hooked by inserting both ends into a pair of holes formed on the back surface of the hard exterior finish material, the hard exterior finish material is made of stone. Is preferable.

According to invention of Claim 3, the dowel pin inserted in the side hole formed in the side surface of the hard exterior finish material is provided in the side surface of the flat plate part in which an anchor member is inserted in the joint of a hard exterior finish material, and a flat plate part Above is a shear connector provided with a first flange portion for flowing a load applied to the shear connector to the surface plate via a heat insulating material and a second flange portion for ensuring the adhesion of the precast concrete panel to the concrete. From the first flange, the weight when the worker puts on the shear connector at the time of bar arrangement and the weight of the concrete on the shear connector are passed from the first flange to the surface plate through the heat insulating material. It is possible to prevent the hard exterior finish material from being damaged at the side holes. In addition, by setting the thickness of the flat part inserted into the joint of the hard exterior finish material appropriately, the joint width of the hard exterior finish material (the gap between the hard exterior finish materials) can be specified, and the hard exterior finish If a cut corresponding to the plate thickness of the flat plate portion is formed on the side surface of the finishing material, the hard exterior finishing material can be laid without any gaps.

  According to the invention described in claim 4, the air layer of the heat insulating layer is communicated with the outside air through the gap between the hard exterior finish materials by arranging a plurality of hard exterior finish materials in a state where there is a gap therebetween. As a result, the joint of the hard exterior finish material becomes a vent, and the ventilation layer and the air layer of the heat insulation layer improve the air permeability of the heat insulation layer, reducing the solar heat load and the night radiant heat load. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show an insulating precast concrete panel A produced by the method of the present invention. In this heat insulating precast concrete panel A, a heat insulating material 4 for forming a heat insulating layer 3 provided with an air layer 2 on the surface of the precast concrete panel 1 and a hard exterior finishing material (in the example shown, stone is used. ) 5 are stacked in this order, and an outer heat insulating structure is realized.

  6 is a shear connector as an anchor member for connecting the hard exterior finishing material 5 to the precast concrete panel 1. In the example, 4 pieces are attached. This shear connector 6 is made of a stainless steel wire, and the center portion is wound twice (or may be wound once) to form a helical spring, and a pair of holes formed on the back surface of the hard exterior finish material 5 at both ends. It is configured to be inserted into and hooked on.

  7 is a through hole formed in the heat insulating material 4 for each position of the anchor member (shear connector 6), and the anchor member (shear connector 6) is projected from the through hole 7. A circular step 8 surrounding the through hole 7 is formed around the through hole 7, and the height of the step 8 is the thickness of the air layer 2. In other words, the ring-shaped heat insulating material portion 4 a surrounded by the step portion 8 serves as a spacer that forms the air layer 2 between the heat insulating material 4 and the hard exterior finishing material 5. 9 is a wall reinforcement and 10 is concrete.

  The through hole 7 may be circular as shown in FIG. 3, or may be a long hole along the longitudinal direction of the anchor member (shear connector 6) as shown in FIG.

  The manufacturing method of said heat insulation precast concrete panel A is as follows. First, as shown in FIG. 5, the required number of hard exterior finishing materials 5 having a square shape are laid on the surface plate B in a state where the anchor member (shear connector 6) protrudes from the back surface thereof. The hard exterior finishing material 5 may be laid out in a state where the side surfaces are in close contact with each other, but is preferably laid out with a slight gap. This is because the joint of the hard exterior finishing material 5 becomes a vent for communicating the air layer 2 with the outside air.

  Thereafter, as shown in FIGS. 5 and 6, the heat insulating material 4 is placed on the hard exterior finishing material 5, the anchor member (shear connector 6) protrudes from the through hole 7, and the hard exterior finishing material is formed by the step portion 8. 5 is laminated in a state where an air layer 2 is formed between the back surface of 5 and the heat insulating material 4. The heat insulating material 4 may be placed only on the hard exterior finishing material 5 or may be temporarily fixed with an adhesive.

Then, as shown in FIG. 6, the four-sided side formwork C is assembled on the surface plate B, and the wall bars 9 are arranged on the heat insulating material 4 as shown in FIG. As shown in FIG. 8, concrete 10 is placed in a mold formed by the surface plate B and the four-sided side mold C, and the anchor member (shear connector 6) is fixed to the concrete 10 in the through hole 7. Thus, the hard exterior finishing material 5, the heat insulating material 4, and the precast concrete panel are integrated to obtain the above heat insulating precast concrete panel.

  According to said method, the heat insulation precast concrete panel A in which the heat insulating material 4 which forms the heat insulation layer 3 provided with the air layer 2 on the surface of the precast concrete panel 1, and the hard exterior finishing material 5 were laminated | stacked in this order. Can be easily manufactured. That is, according to the above method, the anchor member (shear connector 6) inserted into the through-hole 7 of the heat insulating material 4 is embedded in the precast concrete panel 1, so that the hard exterior finishing material 5, the heat insulating material 4, and the precast concrete are embedded. The panel 1 is integrated, and the air layer 2 between the hard exterior finishing material 5 and the heat insulating material 4 is formed by the step portion 8 of the heat insulating material 4 surrounding the periphery of the through hole 7.

  Therefore, by placing a plurality of hard exterior finish materials 5 on the surface plate B, placing the heat insulating material 4 thereon, placing the reinforcement and placing concrete on the heat insulating material 4, The heat insulating precast concrete panel A to which the hard exterior finishing material 5 is stuck can be easily manufactured.

  9 to 12 show other embodiments of the present invention and are characterized by the following points. That is, after the step shown in FIG. 6, that is, on the hard exterior finish material 5 laid on the surface plate B, the heat insulating material 4 is protruded from the through-hole 7 with the anchor member (shear connector 6) and a step. After the layer 8 is laminated in a state where the air layer 2 is formed between the back surface of the hard exterior finishing material 5 and the heat insulating material 4, an elastic sealing material 11 is attached to the bottom of the through-hole 7 as shown in FIG. 9. Filling and closing the bottom of the through hole 7.

  In this state, as shown in FIG. 10 and FIG. 11, wall reinforcement 9 and concrete 10 are placed above the heat insulating material 4, and the bottom of the through hole 7 is elastic as shown in FIG. 12. The heat insulating precast concrete panel A closed with the system sealant 11 is manufactured.

According to this method, since the bottom of the through hole 7 is closed with the elastic sealing material 11, the position of the through hole 7 does not become a weak point of the heat insulating performance, and a higher step heat effect is exhibited. In order to reduce the filling amount of the elastic sealant 11, it is desirable that the shape of the through hole 7 is a long hole as shown in FIG. Other configurations and operations are the same as those of the previous embodiment, and thus description thereof is omitted.

  In each of the above-described embodiments, a ring-shaped heat insulating material portion (a portion that functions as a spacer surrounded by the stepped portion 8) 4a around the through hole 7 is laminated on the hard exterior finish material 5. Although formed integrally with the heat insulating material 4, as shown in FIG. 13, a ring-shaped heat insulating material portion (a portion surrounded by the stepped portion 8 and functioning as a spacer) 4 a around the through hole 7 and the through hole 7. The plate-shaped heat insulating material portion 4b with the ring is separated, and the ring-shaped heat insulating material portion 4a is placed on the hard exterior finishing material 5 arranged and fixed with an adhesive. You may employ | adopt the operation | work procedure which mounts the flat heat insulating material part 4b on the heat insulating material part 4a, and fixes it with an adhesive agent.

14 to 17 show another embodiment of the present invention. In this embodiment, as an anchor member for connecting the hard exterior finishing material 5 to the precast concrete panel 1, side surfaces of the hard exterior finishing material 5 are provided on both side surfaces of the flat plate portion 12 inserted into the joint of the hard exterior finishing material 5. A dowel pin 14 is provided for insertion into a lateral hole 13 formed on the first plate portion 15. A first flange portion 15 for flowing a load applied to the shear connector to the surface plate via the heat insulating material 4 and precast concrete above the flat plate portion 12. It is characterized in that a shear connector 60 provided with a second flange portion 16 that secures adhesion of the panel 1 to the concrete 10 is used. 60a is a shear connector provided with a dowel pin 14a for insertion into the horizontal hole 13 of the hard exterior finishing material 5 located at the panel end, and has a bent shape so that the upper end is located inside the panel end. At the upper end, a flange portion 16a for securing the adhesion of the concrete panel 1 to the concrete 10 is provided.

  In this embodiment, the heat insulating precast concrete panel A will be manufactured by the following procedure. That is, as shown in FIGS. 14 and 15, as the heat insulating material 4, a flat hole and a through hole 7 for inserting the first flange portion 15 and the second flange portion 16 of the shear connector 60 are formed at predetermined positions. Use the same thing. 14 and 15, the hard exterior finishing material 5 is laid on a surface plate (not shown), and the dowel pins 14 of the shear connector 60 are formed in advance on the side surface of the hard exterior finishing material 5. The dowel pin 14a of the shear connector 60a is inserted into the lateral hole 13 of the hard exterior finish material 5 that is inserted into the lateral hole 13 and located at the end of the panel.

  Thereafter, as shown in FIG. 14 to FIG. 16, the split connector 17 made of a heat insulating material is disposed on both sides of the flat portion 12 sandwiched between the joints of the hard exterior finish material 5 of the shear connector 60. The spacer 17a made of a heat insulating material is also applied to the side surface of the shear connector 60a, a flat heat insulating material 4 is laminated on the spacers 17 and 17a, and the heat insulating material 4 and the hard exterior finishing material 5 are laminated. The thickness of the air layer 2 formed between the two is ensured. Further, a surplus portion of the through-hole 7 (for insertion of the first flange portion 15 and the second flange portion 16) by a split-structure spacer 17 applied to the side surface of the flat plate portion 12 below the first flange portion 15 from both sides. Necessary opening) is closed.

  Next, the dimension adjusting spacer 17b is sandwiched between the first flange portion 15 of the shear connector 60 and the heat insulating material 4, and between the bent portion of the shear connector 60a and the heat insulating material 4, respectively. The dimension adjusting spacer 17b is configured to have at least the same rigidity as the spacers 17 and 17a in order to transmit the load to the shear connectors 60 and 60a to the surface plate via the heat insulating material 4, the spacers 17 and 17a, and the like. For example, it is made of the same heat insulating material as the spacers 17 and 17a.

  In this state, as shown in FIG. 17, the wall reinforcement 9 is placed above the heat insulating material 4 and the concrete 10 is placed to manufacture the heat insulating precast concrete panel A.

  According to this method, the dowel pins 14 to be inserted into the lateral holes 13 on the side surface of the hard exterior finish material 5 are provided on both side surfaces of the flat plate portion 12 into which the anchor member is inserted into the joint of the hard exterior finish material 5. A first flange portion 15 for flowing a load applied to the shear connector to the surface plate via a heat insulating material and a second flange portion 16 for ensuring adhesion of the precast concrete panel 1 to the concrete 10 are provided above the plate. Since the shear connector 60 is used, the weight when the worker is placed on the shear connector 60 and the concrete weight applied to the shear connector 60 at the time of the bar arrangement flow from the first flange portion 15 to the surface plate through the heat insulating material 4. It is possible to prevent the dowel pin 14 from being damaged or deformed by the load and damage to the hard exterior finishing material 5 at the side hole 13.

  Further, since the joint width of the hard exterior finish material 5 (the gap between the hard exterior finish materials 5) can be defined by the thickness of the flat plate portion 12 inserted into the joint of the hard exterior finish material 5, the hard exterior finish material The size of the vent formed by the joint 5 (the vent that allows the air layer 2 to communicate with the outside air) can be accurately set. Other configurations and operations are the same as those of the previous embodiment, and thus description thereof is omitted.

18 and 19 show another embodiment of the present invention. In this embodiment, a first member 60A in which a screw shaft 18 is connected to the upper end of a flat plate portion 12 with dowel pins 14 projecting on both side surfaces, and a screw cylinder 19 that is detachably screwed onto the upper portion of the screw shaft 18 are provided. A first flange portion 15 is provided at the lower end to allow a load applied to the shear connector to flow to the surface plate via the heat insulating material 4, and a second flange is provided at the upper end of the screw cylinder 19 to ensure adhesion of the precast concrete panel 1 to the concrete 10. The second connector 60B provided with the portion 16 is characterized in that the shear connector 60 is configured.

  According to this configuration, as shown in FIGS. 18A and 18B, the first member 60 </ b> A is placed on the joint of the hard exterior finish material 5, and the heat insulating material 4 is placed on the hard exterior finish material 5. 18C, as shown in FIG. 18C, the second member 60B is screwed into the screw shaft 18 of the first member 60A and the first flange portion 15 is pressed against the upper surface of the heat insulating material 4, and in this state As shown in FIGS. 19A and 19B, it is possible to manufacture the heat-insulated precast concrete panel A by arranging the wall bars 9 and placing the concrete 10.

  Therefore, the dowel pin 14 due to these loads is caused by flowing the weight when the worker is placed on the shear connector 60 at the time of bar arrangement or the concrete weight applied to the shear connector 60 from the first flange portion 15 through the heat insulating material 4 to the surface plate. Breakage, deformation, and breakage of the hard exterior finish 5 at the side hole 13 can be prevented. In addition, since the through hole 7 formed in the heat insulating material 4 may have an inner diameter of a minimum necessary size into which the screw shaft 18 can be inserted, a spacer for closing an excess portion of the through hole 7 and the first flange portion 15 The dimension adjusting spacer sandwiched between the heat insulating materials 4 can be omitted. Other configurations and operations are the same as those of the embodiment of FIGS.

  As mentioned above, although embodiment of this invention was described, this invention should not be limited only to embodiment mentioned above. For example, in any of the above-described embodiments, the hard exterior finish material 5 is stone, but can be implemented by replacing with a tile or a metal panel. Further, the joints of the hard exterior finish material 5 are set to an appropriate width, for example, about 6 to 8 mm, and a sealant is applied to these joints, and the air layer 2 is released to the outside air through the small edge of the heat-insulated precast concrete panel A. In addition, air may be circulated from the small opening of the heat insulating precast concrete panel A.

It is a partially cutaway perspective view of an insulation precast concrete panel. It is sectional drawing of the principal part of a heat insulation precast concrete panel. It is a principal part perspective view which shows an example of the relationship between the through-hole of a heat insulating material, and a shear connector. It is a principal part perspective view which shows the other example of the relationship between the through-hole of a heat insulating material, and a shear connector. It is a vertical side view of the principal part explaining an example of the manufacturing method which concerns on this invention. It is a vertical side view of the principal part following the process of FIG. It is a vertical side view of the principal part following the process of FIG. It is a vertical side view of the principal part following the process of FIG. It is a vertical side view of the principal part which shows other embodiment of this invention. It is a vertical side view of the principal part following the process of FIG. It is a vertical side view of the principal part following the process of FIG. It is sectional drawing of the principal part of a heat insulation precast concrete panel. It is a vertical side view of the principal part which shows other embodiment of this invention. It is a perspective view of the principal part which shows other embodiment of this invention. It is a vertical side view of the principal part explaining a manufacturing method. It is a vertical side view of the principal part following the process of FIG. It is a vertical side view of the principal part following the process of FIG. It is a vertical side view of the principal part which shows other embodiment of this invention. It is a vertical side view of the principal part following the process of FIG.

Explanation of symbols

A heat insulation precast concrete panel B surface plate C side formwork 1 precast concrete panel 2 air layer 3 heat insulation layer 4 heat insulation material 4a, 4b heat insulation material part 5 hard exterior finishing material 6 shear connector 7 through hole 8 step part 9 wall reinforcement 10 concrete DESCRIPTION OF SYMBOLS 11 Elastic sealing material 12 Flat plate part 13 Side hole 14 Dowel pin 14a Dowel pin 15 1st flange part 16 2nd flange part 17, 17a Spacer 17b Dimension adjustment spacer 18 Screw shaft 19 Screw cylinder 60, 60a Shear connector

Claims (4)

  On the surface of the precast concrete panel, a heat insulating material that forms a heat insulating layer with an air layer, and a hard exterior finish material are laminated in this order. Lay multiple hard exterior finish materials in a state where the anchor members for connecting the hard exterior finish materials and the precast concrete panels protrude from the back side of the hard exterior finish materials, and positions corresponding to the anchor members on the hard exterior finish materials A heat insulating material in which a through hole is formed every time and a stepped portion surrounding the periphery of the through hole is formed, an anchor member projects from the through hole, and an air layer is formed between the back surface of the hard exterior finishing material and the heat insulating material by the stepped portion. Laminating in a state where the material is formed, placing reinforcement and concrete on the heat insulating material, hard exterior finishing material, heat insulating material and precast core Method for producing a heat insulating precast concrete panels, characterized by a step of integrating the cleat panel.   The method for producing a heat-insulated precast concrete panel according to claim 1, wherein the anchor member is a steel wire shear connector that is inserted and hooked into a pair of holes formed on the back surface of the hard exterior finish material. .   As the anchor member, dowel pins to be inserted into the side holes formed in the side surface of the hard exterior finish material are provided on the side surface of the flat plate portion to be inserted into the joint of the hard exterior finish material, and the load applied to the shear connector above the flat plate portion 2. A shear connector provided with a first flange portion for allowing the precast concrete panel to adhere to the concrete and a first flange portion for allowing the precast concrete panel to flow to the surface plate through the heat insulating material is used. The manufacturing method of the heat insulation precast concrete panel of description.   2. The air layer of the heat insulating layer is communicated with the outside air through a gap between the hard exterior finish materials by arranging a plurality of hard exterior finish materials in a state having a gap therebetween. The manufacturing method of the heat insulation precast concrete panel in any one of -3.

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