JPS6348709B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a decorative concrete block in which a hollow concrete block or a solid concrete block is connected and fixed to a decorative block formed of colored concrete, which is extremely easy to manufacture. This is the method.

Instead of the conventional simple concrete block, attempts have been made to embed tiles on the surface of a concrete plate to achieve a beautiful surface finish (see Utility Model Publication No. 50-5903), but it is possible to embed tiles in one piece without any disturbance during concrete molding. In addition to the fact that it is very time-consuming to lay each tile in the formwork individually, the manufactured concrete plate with tiles may come apart if the concrete plate and each tile are not connected reliably. Furthermore, when used for exterior purposes, the tiles are likely to chip or crack, and in terms of cost, when concrete plates with tiles are used, they are expensive.

Therefore, the inventor developed a unique decorative concrete block that is much cheaper, easier to manufacture, and has superior strength than the concrete plate with tiles, but this decorative concrete block is made of glass. A hollow concrete block or solid concrete block is connected and fixed to a plate-shaped decorative block made of colored concrete reinforced with fibers, so a formwork suitable for its manufacture is required. This invention allows the above-mentioned formwork to be easily provided.

That is, according to the method of the present invention, the mold surface side has an uneven portion forming the masonry pattern of the decorative block, and a protrusion is formed at least at one of the upper and lower masonry ends of the decorative block. In a plate-shaped formwork made of synthetic resin foam, the frame has a recessed part and a drop part in which the outer periphery of the frame is lowered lower than other parts at the end on the side where the recessed part is formed. Pour colored concrete,
When the colored concrete has not yet solidified, a hollow concrete block or a solid concrete block is placed on top of the colored concrete, and after the colored concrete has solidified, the two are connected and fixed, and then decorative concrete with a masonry pattern is prepared from the formwork. It is characterized by taking out blocks.

Next, embodiments of the present invention will be illustrated below with reference to the drawings together with the molds used.

Reference numeral 50 denotes a frame used in the present invention, which is formed into a plate-shaped frame made of synthetic resin foam such as polystyrene foam. Then, on the mold surface side of the formwork 50, a concavo-convex shaped portion 5 for forming concavo-convex portions 61, 62 of a masonry pattern of a decorative block 60 to be manufactured.
2, 51, and because colored concrete is poured into the formwork 50 and a hollow concrete block or the like is placed on top of it, a convex portion 51 on the mold surface is used.
is formed lower than the frame outer periphery. Reference numeral 53 denotes a small recess for forming the protrusion 63, and is formed in a portion of the mold surface that is at least one of the upper and lower stacked ends of the decorative block 60.

Further, reference numeral 54 denotes a drop portion, in which the outer periphery of the frame is lowered lower than other portions at the end on the side where the recessed portion 53 is formed. Reference numerals 55 and 55' denote uneven parts for fitting the formworks 50 and 50 together, which prevent horizontal displacement when stacked and transported, and are low bulky so that a large number of them can be stacked (Fig. 5). reference).

The formwork 50 may be formed of a foam formed by heating and foaming expandable thermoplastic resin particles (beads) and thermally fusing them together, or may be formed of an extruded foamed sheet. It is also possible to use a mold 50 formed from a foamed body by means such as press molding.

When manufacturing a decorative concrete block using the formwork 50 as described above, first, plain colored concrete or colored concrete reinforced with glass fibers is poured into the formwork 50. As the reinforced colored concrete, for example, sand 2. On the other hand, a mixture of 1 part white cement and glass fibers of about 15 mm in length and some pigment is used. When this colored concrete has not yet solidified, a solid concrete block (not shown) is placed on the colored concrete in the hollow concrete block 70 area, and after the colored concrete has solidified, they are connected and fixed together, and then both are placed in a formwork. Just remove it from 50,
A decorative block 60 is made of colored concrete with uneven parts 61 and 62 in a masonry pattern formed on the surface and protrusions 63 at the ends, and a hollow concrete block 7 is formed on the back side of this decorative block 60.
It is possible to provide a decorative concrete block in which 0 etc. are connected and fixed and integrated. The decorative block 60 made of colored concrete is formed to be longer at the upper and lower ends than the concrete block 70 in consideration of the connection between the hollow concrete blocks 70, 70 by mortar or the like.

In addition, instead of the above-mentioned glass fibers, other fibers (for example, nylon fibers) may be mixed into the colored concrete. Furthermore, in addition to the above-mentioned fibers that serve as reinforcing materials, colored concrete in which pigments for coloring are mixed can be used in the form of mortar made of sand and white cement as described above, or in the form of mortar mixed with pebbles. It may be carried out in the form of concrete, and the colored concrete according to the present invention includes both embodiments. Further, for the decorative block made of colored concrete, the concrete block to be connected and fixed to the back side may be of the hollow shape shown above, or may be of a solid shape.

Note that the decorative block 60 can be constructed in various patterns by the uneven portions 52 and 51 of the formwork 50 (see FIGS. 6 to 8 and 9 to 11).

According to the method of this invention, as described above, the formwork 50
By using this method, a decorative concrete block in which a hollow concrete block 70, etc. is connected to the back side of a decorative block 60 made of colored concrete can be easily manufactured, and it is also easy to form uneven parts that form a masonry pattern on the surface. . It also becomes possible to manufacture the product at the construction site.

During the above manufacturing process, the synthetic resin foam that becomes the formwork 10 is used with clear granules on the side of the mold,
By forming irregularities that form a pattern separately from the masonry pattern, it is possible to obtain a wide variety of manufactured decorative blocks 60 having a granular pattern or an uneven pattern formed by foamed particles on the surface. .

Furthermore, the decorative concrete blocks manufactured by the method of the present invention only need to be stacked sequentially vertically and horizontally according to the intended shape according to the masonry pattern, and are connected and fixed to the back side of the decorative block 60 during the masonry work. The masonry connections can be made sequentially using mortar M at the hollow concrete block 70 or the solid concrete block (see FIGS. 4, 13 and 15). In particular, since the protrusion 63 is formed at the end of the masonry, the masonry dimensions can be easily finely adjusted by cutting off the required amount, and masonry can be done in a beautiful pattern. After construction, the shape of the hollow concrete block 70 and the above-mentioned dimension adjustment protrusions 63 are invisible or difficult to see from the surface, and only the brick-like pattern is clearly visible with the unevenness, resulting in a beautiful finish. be able to. Furthermore, at the corner part during construction, decorative blocks 60 and the same material are used as shown in Figs. 12 to 15.
Corner decorative blocks 30, 30' as shown in the diagram
is used. Of these corner decorative blocks 30, 30', 31 and 32 are uneven parts, 33 is a back space that is convenient for thinning and reinforcing, and 34 is a protrusion for size adjustment.

When the formwork 50 is used as in the method of this invention,
It is easy to form a masonry pattern on the surface, it is easy to manufacture decorative concrete blocks, and it is convenient because it can easily be provided with protrusions that allow for easy dimensional fine adjustment during masonry construction. be. In addition, since the formwork 50 is made of synthetic resin foam, it is lightweight and easy to handle, and can also be used as a packaging material for transportation without removing the decorative concrete blocks. It has a great protective effect on the makeup block area.

Furthermore, at least one of the upper and lower masonry ends of the decorative block is formed with a drop part in which the outer periphery of the frame is lowered lower than other parts at the end on the side where the concave part for forming the protrusion is formed. Because I am doing
When a hollow concrete block, etc. is placed after pouring colored concrete, the excess colored concrete tends to escape into this drop on one side of the formwork, and the excess is easily guided to an inconspicuous area after masonry construction. Become something.

Regarding the decorative concrete block manufactured by the method of this invention, a decorative block 60 having a brick-like masonry pattern on the surface is formed of colored concrete, and a hollow concrete block 70 or a solid block is formed on the back surface of the decorative block 60. Since the concrete blocks are connected and fixed, especially if the colored concrete is reinforced with fiber mixture,
Compared to conventional blocks, it is much stronger, has less occurrence of chips and cracks on the decorative block 60 on the front side, has a large surface protection effect, has high earthquake resistance, and has excellent weather resistance. .
In addition, the overall non-combustibility is improved, the appearance is beautiful, and the joints are created just by assembling, making construction easy and resulting in significant savings in construction costs.

Therefore, the decorative concrete block manufactured above can be used for the interior and exterior of general houses, block houses, buildings, hotels, inns, supermarkets, gas stations, golf course clubhouses, tea rooms, coffee shops, etc., and various external fences. Widely available.

[Brief explanation of drawings]

Figure 1 is a perspective view of the formwork used in the method of this invention, Figure 2 is a partially cutaway perspective view during manufacturing, and Figure 3 is a perspective view of the manufactured decorative concrete block.
Figure 4 is a cross-sectional view of decorative concrete blocks during masonry construction, Figure 5 is a front view of a state in which multiple manufacturing forms are stacked, and Figures 6 to 8 are of the formwork showing examples of pattern changes. The plan view, Figures 9 to 11 are front views of decorative concrete blocks with changed patterns, Figure 12 is a perspective view of corner decorative blocks used in construction together with the decorative concrete blocks in Figure 3, and Figure 13 is a front view of the decorative concrete blocks with changed patterns. FIG. 14 is a perspective view of another corner decorative block, and FIG. 15 is a perspective view showing the blocks after being assembled. 50... Formwork, 52, 51... Concave and convex shaped portion forming a masonry pattern, 53... Recessed portion for forming a protrusion for dimension adjustment, 54... Drop portion, 5
5, 55'... uneven portion for fitting, 60... decorative block, 70... hollow concrete block.

Claims (1)

[Scope of Claims] 1. It has a concavo-convex portion on the mold surface side for forming a masonry pattern of decorative blocks, and a protrusion is formed at least at one of the upper and lower masonry ends of the decorative block. Inside a plate-shaped formwork made of synthetic resin foam, it has a recessed part for the purpose of cleaning, and a drop part at the end of the side where the recessed part is formed, in which the outer periphery of the frame is lowered lower than the other parts. To,
Pour colored concrete, place a hollow concrete block or solid concrete block on top of the colored concrete while the colored concrete has not yet solidified, connect and fix the two as the colored concrete hardens, and then assemble from the formwork. A method for producing a decorative concrete block, which comprises taking out a patterned decorative concrete block. 2. A method for manufacturing a decorative concrete block according to claim 1, which uses a formwork made of polystyrene foam. 3. A method for producing decorative concrete blocks using fiber-reinforced colored concrete.