JPS60920B2 - Manufacturing method of patterned terrazzo board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a patterned terrazzo board having an artificial pattern on its surface created by contrasting cement mortars mixed with different colorants, granules, etc. .

Conventional terrazzo boards are made by hardening cement mortar mixed with the required coloring material and granules into a plate shape, and polishing the surface. Depending on the selection, extremely beautiful surface patterns can be created.

However, the surface pattern of such a terrazzo board depends only on the shape, color, etc. of the granules themselves, and in a sense can be said to be extremely uniform and lacking in variation. Therefore, recently, patterned terrazzo slopes have been created that can create various artificial patterns on the surface by contrasting cement mortars mixed with different colorants and granules. Attempts are being made.

However, as a method for producing such a patterned terrazzo board, for example, a first method containing the required coloring material and granular material is used.
Harden the cement mortar into the desired shape in advance,
This first cement mortar mass may be embedded in the surface of a second cement mortar mixed with a different coloring material or granules, or the first cement mortar may be placed within a partition band partitioned in a pattern. A possible method is to fill a new partition with a second cement mortar after the first cement mortar has hardened. Alternatively, as a method for producing patterned tiles, the inside of the formwork is divided into multiple areas using bent partition bands, and cement mortar made of different colored pigments such as white cement is applied within each area. Along with filling with mud,
Each of these muddy substances is made into a semi-hardened body by vacuum dehydration treatment,
It is known that the partition band is removed from the formwork in this state, and then the semi-cured material in the formwork is pressed to remove the mold. It is also possible that it could be applied to the manufacture of boards. However, the former method can cause cracks when pressed to embed solid materials, or create gaps at the boundary with the second cement mortar. Because it becomes easier to
It has the disadvantage that it is difficult to manufacture continuously by pressing, and the latter method using partition bands requires waiting for the previous cement mortar to harden before adding the next cement mortar. However, there is a disadvantage that patterned terrazzo boards cannot be manufactured continuously and efficiently using consistent equipment.

Additionally, products that apply the manufacturing method of patterned tiles require a troublesome process called vacuum dehydration, which requires time and effort to install. Moreover, since this product is pressed after removing the partition band, there is an inconvenience that if the press pressure is increased to increase the strength, the boundaries of the pattern become unclear, and it is necessary to prevent this. However, there is a problem in that vacuum dehydration treatment must be carried out for a long time. The present invention was made with attention to this situation, and it is necessary to provide a desired area within a flat plate form with low moisture (meaning low moisture to the extent that it can be molded into a certain shape by press molding).

The same applies hereinafter) The first cement mortar is thickened by the first press molding, and the first
A second cement mortar is filled in other areas within the flat plate formwork surrounding the cement mortar, and then a second cement mortar is filled from above again into the entire cement mortar in the flat plate formwork.
The above-mentioned disadvantages can be solved by applying a second press to produce a semi-finished product, and after curing, polishing the surface of this semi-finished product to obtain a terrazzo board with a pattern on the surface. The present invention provides a method for manufacturing a patterned terrazzo board. An embodiment of the present invention will be described below with reference to the drawings.

For example, cylindrical auxiliary formworks 2 and 3 are installed in the bell-shaped flat plate formwork 1 to surround a desired area where a pattern is to be formed (the first
(see figure), the auxiliary formworks 2, 3 are filled with first cement mortar 4, 5 mixed with the required coloring material and granules (see figure).
See FIG. 2. The first cement mortars 4 and 5 are pressed from above and formed into a cylindrical shape (see FIG. 3), and then the first cement mortars 4 and 5 are left in the auxiliary formwork. Remove 2 and 3 (see Figure 4).

That is, the first cement mortar 4, 5 is placed in a desired area within the flat plate form i by the first press molding so as to have a thickness as shown in the drawing. Then, a second cement mortar 6 mixed with necessary coloring materials and granules is placed in another area of the flat plate formwork 1 where these first cement mortars 4 and 5 are loosened. 5 (see FIG. 5), and mortar 7 as a backing material is placed on top of these cement mortars 4, 5, and 6 (see FIG. 6). Thereafter, a second press is applied to the entire cement mortar 4, 5, 6, and 7 in the flat plate formwork 1 from above again to produce a semi-finished product 8 (see Fig. 7), and this semi-finished product 8 is removed from the flat plate formwork 1 (see FIG. 8). After this semi-finished product 8 has hardened, the surface 8a of the semi-finished product 8 is polished to obtain a finished product, a terrazzo board 9 with a rough pattern (see FIG. 9). With this manufacturing method,
As long as the coloring material, granular material, etc. mixed in the first cement mortar 4, 5 and the coloring material, granular material, etc. mixed in the second cement mortar 6 are made different in color, particle size, etc., The first cement mortar 4, 5 and the second cement mortar
According to the present invention, it is possible to obtain a patterned terrazzo board 9 having an artificial pattern on the surface in contrast with the first cement mortar 4, 5.
is placed into the flat plate form 1 by the first press forming, so there is no need to wait for the first cement mortar 4, 5 to harden or to perform vacuum dehydration treatment. It can be prepared.

Therefore, the patterned terrazzo board 9 can be manufactured continuously and efficiently. In addition, the first cement mortar 4, 5 is placed directly into the flat plate formwork 1 by press forming, and the second cement mortar 6 is also formed using the same flat plate form 1. , it is possible to manufacture a terrazzo board 9 of uniform quality without the inconvenience of misalignment of the pattern. Moreover, the first cement mortar 4
, 5 and the second cement mortar 6 into the flat plate form 1.
, 69 Since the second press is applied evenly from above to the entire surface of the cement mortar 4 and 5, the shape of the first cement mortar 4 and 5 that was previously press-formed is not destroyed.
It is possible to promote densification of the boundary between the first cement mortar 4, 5 and the second cement mortar 6. Therefore, a pattern with clear outline can be made to appear on the surface of the terrazzo board 9. In other words, in this type of product, the first cement mortar is piled up into a certain shape by the first press process, so even if the second press process is performed at a somewhat high pressure. , it is possible to obtain a strong terrazzo board with a clear pattern without disturbing the pattern boundaries. The patterned parts of the terrazzo boards made in this way are quite thick, so unlike the superficial patterns formed by painting methods, they have sufficient strength against wear. There is. Therefore, it is highly wear-resistant and has excellent durability, so that it does not cause any inconvenience even when used on outdoor pavements, stairs, etc., for example. Incidentally, it goes without saying that the shape, size, number, etc. of the first cement mortar are not limited to those of the above embodiments, and various modifications can be made without departing from the spirit of the present invention. .

As detailed above, the present invention has a unique structure in which pressing is performed in two stages, so it is possible to produce a terrazzo board that has a clear pattern and is strong enough to withstand harsh usage conditions. It is possible to provide an excellent method for manufacturing a patterned terrazzo board that can be manufactured continuously and efficiently.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIGS. 1 to 8 are side sectional views sequentially showing the manufacturing process, and FIG. 9 is a front view of a patterned terrazzo board. 1... Flat plate formwork, 4, 5... First cement mortar, 6... Second cement mortar, 8... Semi-finished product, 9.
...Patterned terrazzo board. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] 1. A first cement mortar with a low moisture content mixed with the required coloring material, granules, etc. is placed in a desired area within the flat plate form by the first press molding to give it a thickness, and this first A second cement mortar mixed with the required coloring material, granules, etc. is filled into another area within the flat plate form surrounding the cement mortar, and then the entire cement mortar within the flat plate form is filled with the upper part again. A semi-finished product is produced by performing a second press process, and after curing, the surface of this semi-finished product is polished to obtain a terrazzo board with a pattern on the surface. Method of manufacturing terrazzo board.