JPH0138192Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention uses a specially structured base material, lath material,
and a mortar wall structure in which mortar wall materials are laminated in this order. Mortar walls are commonly used as exterior wall materials for buildings and structures. However, the thermal conductivity of the mortar wall is 0.47 Kcal/mh°C, which is considerably higher than that of glass wool and rock wool. Therefore, some kind of improvement has been required from the viewpoints of strengthening heat insulation, preventing surface and internal dew condensation, and suppressing cracks caused by changes in the structure. Therefore,
For example, a construction method has been adopted in which glass wool is used as a base material for mortar walls, but it lacks alkali resistance and is hygroscopic and water absorbent, so its performance as a heat insulating material deteriorates, and due to its hygroscopic nature, it cannot be used with wet rags. Then,
As a result, there was a drawback that voids were formed between the lath boards of the mortar wall. In order to eliminate these drawbacks, the present invention integrates a synthetic resin foam with closed cell structure, which is waterproof, hygroscopic, highly insulating, and non-hygroscopic, and a waterproof tarpaulin sheet and board. A base material having a bottle-shaped blind hole with an opening on the board surface is fixed to the framework of the mortar wall by contacting a waterproof sheet, and a lath material is fixed to the entire surface of the board of the base material, Applying mortar wall material on top of it prevents the mortar wall from peeling and cracking, and strengthens the insulation, waterproofing, and moisture-proofing properties of the mortar wall material, as well as the adhesion of the mortar wall material.
The present invention provides a mortar wall structure that reduces deformation of the building frame (transmission of vibrations caused by earthquakes, etc., to the mortar wall). An embodiment of the mortar wall structure according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view showing a mortar wall structure according to the present invention, and 1 is a frame consisting of main pillars or studs 2 and a rim 3. Reference numeral 4 denotes a base material, which is a board 5 and a synthetic resin foam 6 as shown in Figures 3 and 4.
and the waterproof sheet 7 are integrally formed, and the board 5
A through hole 8 is formed in the synthetic resin foam 6, and a large number of blind hole-shaped pilot holes 9 are coaxially formed in the synthetic resin foam 6, and the diameter D of the through hole 8 is smaller than the diameter d of the pilot hole 9. To explain further, the board 5 is made of one of the following: plywood, slate, a high-strength, water-resistant, noncombustible board made of gypsum and slag, a board made of a fiber-reinforced composite material with gypsum as a matrix, and a synthetic resin-impregnated gypsum board. A large number of through holes 8 are formed on the entire surface of the plate, for example, with the same diameter or different diameters, and not limited to circular shapes, but one or more shapes such as ellipsoids, rectangles, squares, rhombuses, and other shapes. It is. In addition, the diameter of the through hole 8 is about 2 to 30 mm,
The center distance between the through holes 8 is about 5 to 50 mm. Further, the synthetic resin foam 6 may be one or two of polyurethane foams, polyisocyanurate foams, epoxy foams, phenol foams, polystyrene foams, etc. formed from raw materials such as polyurethane resins, epoxy resins, phenolic resins, and polystyrene resins. The cell structure is a closed cell structure in terms of waterproofness, moisture resistance, and strength. Further, a blind hole-shaped prepared hole 9 having a diameter d larger than the diameter D of the through hole 8 is bored in the synthetic resin foam 6 at the same position as the hole bored in the board 5. The reason why the pilot hole 9 is formed to have a larger diameter than the through hole 8 is that when it is filled with mortar wall material, which will be described later, the space volume of the pilot hole 9 is expanded by filling with mortar wall material, and the bonding force is further increased. This is because it can be strengthened. In addition, the synthetic resin foam lining is lightweight, insulating,
It has excellent waterproof, moisture-proof, and cushioning properties, and the pilot hole 9 can be formed with a single drill, and the board 5
This is because a bottle-shaped blind hole with D<d can be formed by drilling once from the surface. In addition, depending on the manufacturing method of the foamed synthetic resin body, the raw material can also be used as an adhesive. The waterproof sheet 7 is laminated or vapor-deposited with one or more of waterproofed paper, asphalt felt, synthetic resin film, and metal foil (Pb, Al, Fe). Numeral 10 is a lath material made of wire lath, ribrass, etc., and numeral 11 is a mortar wall material. Next, an example will be explained. First, the board 5 is made of plywood with a thickness of 7 mm, the waterproof sheet 7 is made of a laminate of aluminum foil and kraft paper, and the synthetic resin foam 6 is made by discharging polyurethane foam raw material onto the board 5. A waterproof sheet 7 is laminated on top and the above raw materials are foamed to a thickness of 17 mm, and D
= 15 mm, d = 20 mm, depth h = 12 mm, and the pitch between the through holes 8 was 50 mm. Now, seven waterproof sheets of the base material 4 are laminated on the frame 1 and fixed with nails. Next, fix the lath material 10 on the board with staples,
A mortar wall material 11 is applied thereon to form a mortar wall with a thickness of 20 mm. The heat transmission coefficient of the mortar wall structure thus formed was 0.9 or less, and the sound absorption properties were considerably high due to the synergistic effect of the board 5 and the synthetic resin foam 6. Furthermore, since the core material of the base material 4 that comes into contact with the mortar wall material has a cushioning property, vibrations and displacement of the frame 1 are suppressed and transmitted to the mortar wall material 11, thereby significantly preventing cracks and peeling of the mortar wall material. We were able to reduce it. Moreover, as shown in FIG.
On the other hand, since the mortar wall material 11 was strongly adhered and integrated, it was possible to prevent the mortar wall material from peeling off. Of course, since the base plate 4 is a composite plate, especially a sandwich structure, there is no warpage or deformation, and the occurrence of peeling and cracking of the mortar wall material 11 is reduced. What has been described below is only one embodiment of the mortar wall structure according to the present invention , and two sides of the waterproof sheet 7 are projected from the base material 4 as shown by the two-dot chain line in FIG. It is also possible to further strengthen the waterproofness of the seams. Further, it is also possible to add powder of a hydraulic substance such as gypsum or slag, fiber, etc. into the synthetic resin foam 6 to further strengthen the bond with the mortar wall material 11. As described above, the mortar wall structure according to the present invention has excellent heat insulation properties, durability, water resistance, soundproofing properties, and workability, and is characterized by being able to significantly reduce peeling and cracking of mortar wall materials. Additionally, since everything from the mortar base to the insulation material and waterproof sheet are integrated, the construction period can be significantly shortened. Furthermore, mortar walls have excellent earthquake resistance because the base material has cushioning properties.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the mortar wall structure according to the present invention, Fig. 2 is an explanatory view showing a part of Fig. 1 in cross section, and Figs. It is an explanatory view showing the base material to be used. 1 ...Structure, 4 ...Front material, 8...Through hole, 1
0...Lass material, 11...Mortar wall material.

Claims (1)

[Scope of utility model registration request] A synthetic resin foam with a closed cell structure is integrally interposed between the board and the waterproof sheet on the frame, and a through hole is provided in the board and a pilot hole in the form of a blind hole is coaxially provided in the synthetic resin foam, and the blind hole is provided. The waterproof sheet surface of the base material, which has a diameter larger than that of the through hole, is fixed in contact with the surface of the base material, and the lath material is fixed on the entire surface of the board of the base material, and the mortar wall material is laminated on top of the lath material. A mortar wall structure characterized in that the holes and pilot holes are also filled with the mortar wall material.