JP2013227745A - Mortar board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mortar board having not only fireproof performance but also excellent workability.SOLUTION: A mortar board includes a lath net 10 made of wire having an outer region 11 in a frame shape and an inner region 12 surrounded by the outer region 11, a fireproof net 20 made of fireproof fiber having an outer region 21 in a frame shape and an inner region 22 surrounded by the outer region 21, and a mortar base material 30 in a board shape having a front face 31, a rear face 32, and an outer peripheral surface 33. The inner region 12 of the lath net 10 and the inner region 22 of the fireproof net 20 are opposed to each other and embedded in the mortar base material 30. The inner region 12 of the lath net 10 is opposed to the front face 31 or the rear face 32 of the mortar base material, while the inner region 22 of the fireproof net 20 is opposed to the rear face 32 or the front face 31 of the mortar base material 30. The outer region 11 of the lath net 10 and the outer region 21 of the fireproof net 20 project from the outer peripheral surface 33 of the mortar base material 30.

Description

  The present invention relates to a mortar board for constructing a fire wall for a building, for example.

  The walls of buildings such as houses are constructed with mortar. For example, Patent Document 1 describes a mortar wall substrate 110 as shown in FIG. The mortar wall substrate 110 has a structure in which an organic material net 112 and a metal material net 113 are sequentially laminated and fixed on a water-impermeable sheet 111.

  Such a mortar wall substrate 110 is cut into a predetermined size and attached to the structural member 100 of the building using staples. And the mortar 120 is applied so that the organic material net | network 112 and the metal material net | network 113 are embed | buried (undercoating process). After the mortar 120 is sufficiently dried, a new mortar is applied (intermediate coating process). Then, the new mortar is semi-dried and further new mortar is applied (overcoating process). In this way, a wall having a predetermined thickness is constructed.

JP 2010-163793 A

  In order to construct a wall using the mortar wall substrate 110 described in Patent Document 1, the mortar wall substrate 110 is attached to the structural component 100 and then the mortar is subjected to an undercoating process and an intermediate coating process. , Must be overcoated. Therefore, in order to construct a wall by the method described in Patent Document 1, not only the work period is spent by the process of applying the mortar 120, but also the finish of the wall may be uneven due to the plastering skill of applying the mortar 120. .

  Then, this invention makes it a subject to provide the mortar board excellent not only in providing fire resistance but also in workability.

  The mortar board according to the present invention includes a wire lath net provided with a frame-shaped outer region and an inner region surrounded by the outer region, and a frame-shaped outer region and an inner region surrounded by the outer region. A fireproof net made of refractory fiber and a mortar base material formed into a board shape and provided with a front surface, a back surface and an outer peripheral surface, the inner region of the lath net and the inner region of the fire net facing each other Embedded in a mortar substrate, the inner region of the lath net is opposed to the front or back surface of the mortar substrate, the inner region of the refractory net is opposed to the back or front surface of the mortar substrate, The outer region and the outer region of the refractory net protrude from the outer peripheral surface of the mortar base material.

  A large number of mortar boards can be stored in a warehouse, transported from the warehouse to a temporary storage site at a construction site, and fixed to a plurality of pillars under construction, for example, one by one. Walls can be easily constructed. The mortar board is fixed by the outer region of the lath net and the outer region of the refractory net being directed to, for example, a pair of upright columns, and the staples being struck onto the column so as to straddle the outer region of the lath net. The lath net prevents the mortar from peeling off, and the fireproof net prevents the mortar base material from cracking when a fire occurs.

  Here, as one aspect of the mortar board according to the present invention, the inner region of the lath net is completely embedded in the mortar base material, and the inner region of the refractory net is embedded along the surface of the mortar base material. The outer region of the lath net and the outer region of the refractory net may be superposed.

  According to this mortar board, the inner area of the lath net is completely embedded in the mortar base, that is, the inner area of the lath net is arranged in the middle of the thickness direction of the mortar base, and the inner area of the refractory net is the mortar base. By embedding along the surface of the substrate, the inner region of the lath net and the inner region of the refractory net are separated by a certain distance, so the lath net and the refractory net sandwich the mortar substrate in half thickness. Thus, it is possible to prevent the mortar base material from being bent when a fire occurs. The outer region of the lath net and the outer region of the refractory net are overlapped with each other, so that the outer region can be easily directed to the pillar and fixed.

  Moreover, the said aspect of the mortar board which concerns on this invention WHEREIN: The structure by which the boundary part of the outer peripheral surface of the said mortar base material and the surface is made into the slope can be employ | adopted.

  According to this mortar board, the boundary portion between the inner region and the outer region of the refractory net is along the slope of the mortar base material, so that it does not bend at a right angle and can be made difficult to break at this boundary portion.

  Moreover, as another aspect of the mortar board according to the present invention, the mortar base material may employ a configuration formed by bubble mortar.

  According to this mortar board, since the mortar board is formed of the bubble mortar, it is possible to reduce the weight of the mortar board and improve the heat insulating performance.

  ADVANTAGE OF THE INVENTION According to this invention, a refractory wall etc. can be efficiently constructed by providing the mortar board which embedded the lath net | network and the fireproof net in the board-shaped mortar base material.

An embodiment of the mortar board concerning the present invention is shown, (a) is a front view from the back side which fractured partially, and (b) is an important section expanded sectional view of A section of (a). (A) (b) (c) (d) is sectional drawing which shows the manufacturing process of the mortar board which concerns on one Embodiment of this invention. It is a partial cross section schematic perspective view which shows the fire wall using the mortar board which concerns on one Embodiment of this invention. It is a schematic perspective view which shows the mortar wall structure using the conventional base material for mortar walls.

  An embodiment of a mortar board according to the present invention will be described with reference to FIGS. As shown in FIG. 1, this mortar board has a lath net 10 in which wires 1 such as steel are assembled in a mesh, a fire resistant net 20 in which fire resistant fibers 2 such as alkali-resistant glass fibers are assembled in a mesh, and a thickness. And a mortar base material 30 in which a mortar 3 is formed into a solid board shape.

  The mesh of the lath mesh 10 and the mesh of the refractory net 20 are not limited to forms such as a lattice shape, a turtle shell shape, and a rhombus shape, and the knitting methods such as a plain weave mesh, a twill weave mesh, and a plain weave mesh are not limited. In any case, the outline of the lath net 10 and the refractory net 20 is a quadrangular shape (rectangular as an example in the drawing), and the frame-shaped outer regions 11 and 21 and the inner regions 12 and 21 surrounded by the outer regions 11 and 21, 22. However, since the refractory net 20 is formed of the refractory fiber 2 such as alkali-resistant glass fiber and has high flexibility, the mesh of the refractory net 20 is smaller than the mesh of the lath net 10.

  The mortar base material 30 is provided with a large number of bubbles (not shown) by the bubble mortar 3, and is a quadrangle (rectangular as an example in the drawing) having a front surface 31, a back surface 32, and an outer peripheral surface 33. It is plate-shaped. The rectangular mortar substrate 30 has four outer peripheral surfaces 33. For example, small holes 34 and 34 are formed at two central line-like locations of the mortar base 30.

  The lath net 10 and the refractory net 20 are preferably embedded in the mortar base 30 in parallel so that the inner area 12 of the lath net 10 and the inner area 22 of the refractory net 20 face the front and back surfaces 31 and 32 of the mortar base 30. Ten outer regions 11 and outer regions 21 of the refractory net 20 protrude from the four outer peripheral surfaces 33 of the mortar base 30.

  However, the inner region 12 of the lath net 10 is embedded in the center of the mortar base 30 in the thickness direction. That is, the mortar 3 is laminated on both surfaces of the inner region 12 of the lath net 10, and one surface faces the front surface 31 or the back surface 32 of the mortar base 30. In this embodiment, one surface of the inner region of the lath net 10 faces the back surface 32 of the mortar base material 30.

  Further, the inner region 22 of the refractory net 20 is embedded along the surface 31 of the mortar base 30. That is, the mortar 3 is filled in the mesh without being laminated on the front side of the refractory net 20, and the mortar 3 is laminated only on the back side of the refractory net 20. Therefore, the inner region 12 of the lath net 10 and the inner region 22 of the refractory net 20 are arranged in parallel at a predetermined interval.

  However, the outer region 11 of the lath net 10 and the outer region 21 of the refractory net 20 are overlapped. Therefore, the outer region 11 of the lath net 10 and the outer region 21 of the refractory net 20 protrude from the center line of the outer peripheral surface 33 of the mortar base 30. Therefore, the boundary portion 35 between the outer peripheral surface 33 and the surface 31 of the mortar base material 30 is chamfered to be a slope. And the fireproof net 20 is also inclined along the boundary part 35 made into this slope. The refractory net 20 is not bent at a right angle at the boundary portion 35 but is inclined so as not to be broken.

  Here, the manufacturing method of such a mortar board is demonstrated, referring FIG. First, as shown in FIG. 2A, a frame-shaped stop plate 52 is fixed on a plywood plate 51 in a horizontal position called a call plate. The inner periphery of the stop plate 52 is the same size as the outer periphery of the mortar base material 30, and an inclined surface 52a is formed.

  2B, the inner region 22 of the refractory net 20 is placed on the plywood plate 51, and the outer region 21 of the refractory net 20 and the outer region 11 of the lath net 10 are placed on the stop plate 52. The inner region 12 of the lath net 10 is in a state of floating from the plywood plate 51. Then, the iron frame 53 is fixed on the stop plate 52. The inner peripheral surface of the iron frame 53 is formed so as to be continuous with the inclined surface 52 a of the stop plate 52.

  Then, as shown in FIG. 2 (c), the viscous mortar 3 a is filled into a space 54 surrounded by the veneer plate 51, the stop plate 52, and the iron frame 53. The viscous mortar 3a is filled in the space 54 until the upper surface of the viscous mortar 3a coincides with or slightly lowers the upper surface of the iron frame 53. In this way, the viscous mortar 3a is filled in the mesh of the refractory net 20, and the lath net 10 is completely embedded.

  Since it takes more than one day for the viscous mortar 3a to harden, in order to manufacture a large number of mortar boards at once, the viscous mortar 3a is filled in the space 54 as shown in FIG. The laminated body 50 of the laminated veneer plate 51, the stop plate 52, and the iron frame 53 is stacked via the spacer 55. In addition, although the laminated body 50 laminated | stacked on four layers is illustrated in FIG.2 (d), it cannot be overemphasized that the laminated body 50 may be laminated | stacked on ten or more layers.

  In this way, when the viscous mortar 3a filled in the space 54 of the laminate 50 is solidified, a large number of mortar boards as shown in FIG. In this mortar board, the surface in contact with the plywood plate 51 is a smooth surface 31, and the surface exposed on the iron frame 53 side is a rough back surface 32.

  The large number of mortar boards are stored in a warehouse, and a necessary number of mortar boards are transported to the construction site. Since the mortar board is arranged in a predetermined size, it can be efficiently stored and transported. In addition, since the mortar board manufactured with the bubble mortar is reduced in weight, the burden of conveyance is reduced.

  Then, at the construction site, a plurality of pillars P are erected, and at the stage where the intermediary pillar Q is erected between the pillars P and P, as shown in FIG. By fixing, the fire wall is constructed. That is, the longitudinal outer region 11 of the lath net 10 of the mortar board and the longitudinal outer region 21 of the refractory net 20 are directed to the pillar P, and the U-shaped staple is struck onto the pillar P so as to straddle the lath net 10. . Further, the small holes 34, 34 of the mortar base material 30 overlap the inter-column Q, and the reinforcing screw 4 is fastened to the inter-column Q from the small holes 34, 34.

  In this way, the refractory wall is constructed by fixing the mortar board to the pillars P and the pillars Q one after another. The outer region 11 of the lath net 10 and the outer region 21 of the refractory net 20 exposed between adjacent mortar base materials 30 are filled with joint material (not shown). Is covered.

  Then, the outer wall is finished by applying plaster (not shown) to the outer surface of the fireproof wall. When bubble mortar is used as the mortar 3, the plaster bites into the bubbles formed on the surface 31 of the mortar base material 30, and the plaster becomes difficult to peel from the mortar board.

  Even if a fire breaks out in the house next to the house constructed in this way, the house with this fireproof wall does not spread. That is, the mortar base material 30 manufactured by the bubble mortar has an improved air insulating property because an air pocket is formed inside. In addition, the mortar base 30 of the mortar board not only has fire resistance but also the lath net 10 reinforces the mortar base 30 even if the mortar base 30 is easily deformed by increasing the temperature, and the refractory net 20 allows the mortar base 30 to be deformed. The material 30 is made not to break.

  Furthermore, since the lath net 10 and the refractory net 20 are arranged apart from each other, the mortar base 30 is hardly bent because the lath net 10 and the refractory net 20 sandwich the mortar 3. Therefore, since this mortar board does not peel off at the time of a fire, it can stop a fire spread.

  Note that the present invention can be variously modified without being limited to the above embodiment. For example, the mortar board can be used not only as a wall but also as a floor or a ceiling. In addition, the mortar board may be formed in a hexagonal shape, a triangular shape, or the like in addition to a square shape.

  Further, the inner region 22 of the refractory net 20 may overlap the inner region 12 of the lath net 10 and be completely embedded in the mortar base 30. Moreover, you may use the general mortar which added the admixture and water, such as a suitable quantity of sand and slaked lime, to cement instead of a bubble mortar.

DESCRIPTION OF SYMBOLS 1 ......... Wire 2 ......... Fireproof fiber 3 ......... Mortar 10 ... Lass net 11 ... Outside area | region 12 ... Inside area | region 20 ... Fireproof net 21 ... Outside area | region 21 ... Outside area | region 22 ... Inside Region 30... Mortar base material 31... Front surface 32 .. Back surface 33.

Claims (4)

A wire lath net provided with a frame-shaped outer region and an inner region surrounded by the outer region, and a fire-resistant fiber-made fire net provided with a frame-shaped outer region and an inner region surrounded by the outer region; The mortar is formed into a board shape and includes a mortar base material provided with a front surface, a back surface and an outer peripheral surface,
The inner region of the lath net and the inner region of the refractory net are embedded in the mortar base so that the inner region of the lath net faces the front or back surface of the mortar base, and the inner region of the refractory net The mortar board is characterized in that is opposed to the back surface or the front surface of the mortar substrate, and the outer region of the lath net and the outer region of the refractory net protrude from the outer peripheral surface of the mortar substrate.   The inner area of the lath net is completely embedded in the mortar base, and the inner area of the refractory net is embedded along the surface of the mortar base, the outer area of the lath net and the outer area of the refractory net The mortar board according to claim 1, wherein the mortar boards are superposed.   The mortar board according to claim 2, wherein a boundary portion between the outer peripheral surface and the surface of the mortar base material is an inclined surface.   The mortar board according to any one of claims 1 to 3, wherein the mortar base material is formed of bubble mortar.

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