JPS63247455A - Reinforced backing ultra-thin stone plate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to building exterior materials, interior finishing materials, display materials, ceiling materials, flooring materials, room interiors, attached furniture,
This invention relates to ultra-thin stone plates used as sanitary products and kitchen utensils.

[Prior art and problems to be solved by the invention] Conventional reinforcing materials for stone materials include those using wire rods as connectors. This involves drilling a hole to the required depth in the stone, inserting and fixing both ends of a wire rod into the hole, and pouring concrete over the hole, but bending the wire rod is inefficient. In addition, the thickness of the stone must exceed a certain level due to the processing of the stone, making it unsuitable for ultra-thin stones.Additionally, the stone must be sealed separately to prevent "stains" caused by the alkali of cement. In addition, because the surface area of the wire rod is small, the contact area between the wire rod and the stone is small. The drawback was that the adhesive strength was weak. This tendency becomes even more of a serious problem especially when the thickness becomes less than 3mm thick.

It is an object of the present invention to compensate for the conventional problem of ultra-thin stones, increase the contact area of the connector with stone or concrete, and expand the range of application of ultra-thin stones.

[Means for solving problems]

For this purpose, the ultra-thin stone material according to the present invention achieves the above object by reinforcing the ultra-thin stone material by using a thin metal plate partially having protruding engagement pieces as a backing of the ultra-thin stone material.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

The example shown in FIG. 1 is a case where the simplest protrusion is formed. On the back side of the ultra-thin stone material 1, a backing material 3 is pasted, which is a metal plate with protrusions 2 extruded at arbitrary intervals. When extruding the protrusions 2, the directions of the protrusions 2 are reversed in a staggered manner as shown in the figure, and the tips 4 are further inclined and bent in order to strengthen the engagement force.

The metal plate of the backing material 3 may be an iron plate, a galvanized steel plate, a tin plated steel plate, a stainless steel plate, an aluminum plate, etc., and may be selected within the range of 0.2 to 211 depending on the required strength.

Although there are no particular restrictions on the type and thickness of the stones used here, the present invention is most effective when applied to natural stones preferably having a size of 5 or less. Examples of natural stone include granite, marble, and onyx. Furthermore, if necessary, the same effect can be obtained by slicing and using artificial stones made by solidifying sand or stones with cement.

The backing material 3 and the ultra-thin stone material 1 are attached using an adhesive that does not penetrate into the stone material. Thermosetting resins and rubber adhesives may be used, but in consideration of heat resistance, weather resistance, water resistance, resistance to cold and heat cycles, etc., adhesives made of thermosetting resins are preferred.For example, epoxy resins, epoxy resins, etc. Examples include, but are not limited to, dispersed chlorinated polyethylene, epoxy acrylate resin, unsaturated polyester resin, and the like.

The ultra-thin stone material 5 that has been reinforced with backing as described above is directly embedded in the underlying concrete, and the strength of the ultra-thin stone material is maintained by the iron plates and protrusions, while the overall strength with the concrete is strengthened. Can correspond to

In addition, as shown in Figure 2, if concrete 6 of the same thickness as 10 dragon is poured uniformly on the back side of ultra-thin stone 5, it can be used as a building material similar to 17-hand stone, which has sufficient strength with the same effect as above. can do.

The example shown in FIG. 3 is similar to the example shown in FIG. 1, but the protrusions 7 are extruded in the form of eyelets and are made like "sea anemones chaff" that are easy to engage with concrete.

Due to this shape, the hole of the protrusion 7 is also filled with concrete, and the bend 8 formed in a circumferential shape at the tip tightly engages with the concrete, so that the adhesion strength is as shown in the example in Figure 1. becomes more solid.

In the example shown in FIG. 4, several rows of protrusions 9 are formed on the iron plate 10, unlike the other examples. A window 12 is opened on the side ll of the rectangular ridge, which allows the ridge 9 to be sufficiently embedded in the concrete and maintains its bonding force stronger than in other examples.

Next, test results using the example shown in FIG. 4 as a sample material will be specifically shown.

[Sample material 1] On one side of a piece of black granite cut into a square with sides of 100 cm and a thickness of 5 mm, solvent-free epoxy resin-modified chlorinated polyethylene (Emullux NS- manufactured by Osaka Soda Co., Ltd.) was used as an adhesive. AD) 2g was applied uniformly. Immediately, a plate 3 having a protrusion-engaging piece with a thickness of 0.5 mm was crimped as a backing material, and silica sand No. 3 14 was sprinkled through the window 12 on the exposed part of the adhesive 13, and left at room temperature. Concrete was uniformly cast to a thickness of 40 m from the bonded surface of the granite 1 after being allowed to stand overnight, and after curing for 4 weeks, a plane tensile test was conducted using the specimen as a test piece. The concrete used here was water: 180, cement: 300, fine aggregate, desalinated sand,
Coarse aggregate: Maximum size 20 stone, admixture: AE water reducer, all units are kf/rrr.

[Comparative Agent 1] A test specimen was prepared in the same manner as above using a 5US304 wire rod with a diameter of 1.5H as a connector as shown in FIG. That is, two grooves 15 with a width of 3 mm and a depth of 3 mm were cut in a black granite l of the same size as used in Example 1, and 5 g of the adhesive 13 was applied so as to fit into the two grooves. After the wire rods 16 were fitted one by one into the center of the lead wire, silica sand No. 3 14 was sufficiently sprinkled on the wire rods and left overnight at room temperature. Next, concrete was poured in the same manner as in Example 1 and cured for 4 weeks.

As shown in FIG.
9 with epoxy resin 20 and measured using a Kenken type tensile tester. The measurement results are shown in Table 1.

Table 1 Next, the test specimens prepared in Example 1 and Comparative Example 1 were
Table 2 shows the results of a 1O cycle of cold and hot cyclic testing, in which one cycle was treatment at .degree. C. for 2 hours and then at +50.degree. C. for 1 hour, followed by a plane tensile test in the same manner as above.

According to Table 2, the material according to the present invention exhibits a difference in tensile strength of 7 to 13 kg/d both under normal conditions and after repeated cold and heat tests, and the fracture position is different from that of comparative material 1. This occurs only in the concrete layer, which is not directly related to adhesive strength.

Therefore, the hammer-reinforced ultra-thin stone slab according to the present invention can be used as an extremely effective stone slab.

〔Effect of the invention〕

By configuring as described above, the ultra-thin stone material according to the present invention has the following effects in terms of backing material production, stone processing, construction, and stone strength. (1) Backing material production ■ Shape can be designed freely.

■Efficiency is high because a large number of protrusion engaging piece bodies can be formed on a continuous metal plate at once. Great productivity.

(2) Processing of stone There is no need to process the pond, just apply an adhesive that also serves as solar. Therefore, thin stones that are difficult to drill or groove can also be used.

(3) Attaching protrusion engagement pieces to construction 0 stones is the same as when using separate protrusion engagement pieces, and plate-shaped pieces with the required number already formed in the required arrangement are attached. Productivity is high because all you have to do is do it.

■If you make a panel by gluing metal plates together, you can manufacture it as a panel by pouring mortar or concrete in a factory, or you can also construct it on-site. At that time, if there is a reinforcing bar or other core on the base side, the protrusion engaging piece can be hooked and temporarily fastened, and it can also be applied to walls and ceilings.

(4) Bow Φ Degree■ The flat part of the metal plate can be used as the adhesive surface, and since the protrusion engaging pieces are connected by the metal plate, the adhesive area can be large, and the whole is integrated. Adhesive strength increases due to the reinforcing effect caused by the presence of water.

■Since the back side of the stone is covered with a plate-like material, the effect of reinforcing the stone itself becomes greater.

■If the hook-shaped part at the tip of the protrusion formed on the metal plate is embedded in mortar or concrete, it will create a large resistance to peeling files and increase the adhesive strength. A similar effect can also be obtained by pouring mortar inside the raised object.

[Brief explanation of drawings]

The drawings are for explaining the ultra-thin stone material of the present invention; Fig. 1 shows a perspective view of an example of the backing material pasted on the ultra-thin stone material, and Fig. 2 shows the ultra-thin stone material of the present invention. 1. A cross-sectional view showing the engaged state of concrete being poured uniformly on the back surface of a stone, and FIGS. 3 and 4 are perspective views of examples showing other backing materials. Moreover, FIG. 5 is a perspective view of a ratio-axis material manufactured for a comparison test with that of the example, and FIG. 6 is a sectional view showing the test state. l...Ultra-thin stone, 2...Protrusions, 3...Backing material,
5... Ultra-thin stone plate, 6... Concrete, 7... Projection, 8... Bent piece, 9... Protrusion, 12... Window, 13... Adhesive, 14 ... Silica sand, 15 ... Groove, 16 ... Wire rod, 18 ... Akuchmen (..., 19
...Flat block, 2o...Epoxy resin. Applicant Maxton Co., Ltd. (2 others) Agent
Patent Attorney Ryukichi Abe (2 others) Figure 1 Figure 2 Figure 3

Claims (2)

[Claims] (1) Ultra-thin stone plate backed and reinforced with a thin metal plate that partially has protruding engagement pieces. (2) An ultra-thin stone plate with a uniform protective layer over the entire back surface of an ultra-thin stone material backed and reinforced with a thin metal that partially has protruding engagement pieces.