JPH04288203A - Concrete product with optical fiber and manufacture thereof - Google Patents

Abstract

PURPOSE:To provide a concrete product and the method of manufacturing said concrete product having not only sufficient strength as a concrete product but also an excellently fine appearance that is entirely different from decoration on conventional concrete products. CONSTITUTION:Disclosed is a concrete product having a concrete part 3 mainly composed of cement, super-lightweight coarse aggregates and super-lightweight fine aggregates. A plurality of optical fibers 4 are embedded in the concrete part 3, and the outgoing beam side ends 5 of these optical fibers 4 are arranged in the form of, for example, letters or patterns on the outside surface of the concrete part 3.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a concrete product suitable for use in various interior materials and materials, and a method for manufacturing the same. Concerning concrete products and their manufacturing methods.

0002

BACKGROUND OF THE INVENTION Conventionally, various concrete products have been provided including building materials, civil engineering materials, and the like. In these concrete products, various cements are used, such as Portland cement and alumina cement, and various additives such as water reducers, activators, thickeners, aggregates, and reinforcing materials are mixed into these cements. has been done. In addition, as aggregates mixed in such concrete products, gravel (river gravel, quarried gravel), sand (mountain sand, river sand), natural lightweight aggregate, artificial lightweight aggregate, etc. are used. By appropriately blending such aggregates and the various additives mentioned above to form a concrete composition, concrete products having various properties depending on the purpose can be obtained.

0003

[Problems to be Solved by the Invention] In recent years, interiors have become more diverse and exterior materials and interior materials have become more decorative, and concrete buildings and various wall surfaces are no longer decorated simply by coloring. In addition to mosaic pattern decoration using tiles, a more innovative method of decoration is desired. This invention was made in view of the above circumstances,
It is completely different from the decoration of conventional concrete products.
The purpose of the present invention is to provide a concrete product with excellent aesthetic appearance and a method for manufacturing the same.

0004

[Means for solving the problem] Claim 1 of the present invention
The described concrete product with optical fibers includes a concrete part mainly made of cement, ultra-light coarse aggregate, and ultra-light fine aggregate, and a plurality of optical fibers are buried in the concrete part, and the optical fibers are embedded in the concrete part. The solution to the above problem is that the output end of the concrete part is disposed on the outer surface of the concrete part. Further, in the method for manufacturing a concrete product with optical fibers according to claim 2, a plurality of optical fibers are connected to a formwork in which a plurality of holes are arranged in a character shape or a pattern on a wall of the formwork. Prepare the optical fiber, insert the optical fiber into the hole with the output end facing outside the mold,
Then, the mixture obtained by kneading cement, ultra-light coarse aggregate, ultra-light fine aggregate, and water is put into the above-mentioned formwork, and after curing it, the formwork is The solution to the above problem was to remove the optical fibers and obtain concrete in which the optical fibers were buried.

[0005]

[Function] According to the optical fiber-equipped concrete product according to claim 1 of the present invention, the concrete part has sufficient strength because the main materials are cement, ultra-light coarse aggregate, and ultra-light fine aggregate. Since the output end of the optical fiber is placed on the outer surface of the concrete part, various light patterns can be created on the outer surface of the concrete part by placing a light source on the input end side of the optical fiber. Further, according to the method for manufacturing a concrete product with optical fibers according to claim 2, a plurality of optical fibers are formed in a formwork in which a plurality of holes are arranged in a character shape or a pattern on a wall of the formwork. is inserted into the hole with its exit end facing outside the formwork, and the mixture obtained by kneading cement, ultra-light coarse aggregate, ultra-light fine aggregate, and water is placed in the formwork. Since the concrete product is cured, by removing the formwork, a concrete product having the output end of the optical fiber disposed on the outer surface can be obtained.

[0006]

EXAMPLES The present invention will be explained in detail below. FIG. 1 is a diagram showing an example of the case where the optical fiber-equipped concrete product according to claim 1 of the present invention is applied to an exterior wall material, and in this diagram, reference numeral 1 indicates the exterior wall material. This exterior wall material 1 is attached to the outside of a wall 2 of a building, and has a large number of optical fibers 4 embedded in a concrete part 3 formed into a rectangular plate shape. Optical fiber 4... is
The output ends 5 are disposed on one outer surface of the concrete part 3, and the input ends are bundled together and drawn out to the other outer surface of the concrete part 3. Here, the output ends 5 of the optical fibers 4 have a single picture pattern as shown in FIG. 1, and thereby the exterior wall material 1 has excellent decorative properties.

The input ends of the optical fibers 4 . A light source 6 for illumination is connected. Here, the light source 6 is composed of various light emitting diodes, etc., so as to input several kinds of colors such as red and blue into the optical fiber 4. It is something that can be changed. Further, the concrete portion 3 is formed mainly of cement, ultra-light coarse aggregate, and ultra-light fine aggregate, and is colored blue or the like instead of the usual grayish-white color. As the cement, various known cements such as Portland cement, white cement, alumina cement, and blast furnace cement are used depending on the properties required for the concrete product.

[0008] Furthermore, as ultra-lightweight coarse aggregate, specific gravity is 0.
9 or less, and as mentioned above, it is preferable to use colored coarse aggregate in order to color the exterior material 1 in a desired color to enhance its aesthetic appearance. As such colored coarse aggregate, for example, (trade name [Neolite]; manufactured by Niijima Bussan Co., Ltd.) is suitable. Note that it is preferable that the ultra-light coarse aggregate has a particle size of about 15 mm or less in order to ensure sufficient strength of the resulting concrete product. In addition, as ultra-light fine aggregate, similar to the ultra-light coarse aggregate mentioned above, the specific gravity is 0.
．． Ultra-lightweight fine aggregate with a weight of 9 or less, for example (trade name [Neolite]; manufactured by Niijima Bussan Co., Ltd.), and white fine aggregate made of quartz are preferably used. Here, this lightweight fine aggregate is not particularly limited, but from the viewpoint of the strength and specific gravity of the concrete product obtained, the particle size is 5 to 0.3.
It is preferable to use a material of about mm. In addition, in order to color the concrete part 3, it is of course possible to simply add a pigment to the concrete composition without using the colored coarse aggregate as described above.

[0009] In such an exterior material 1, the concrete part 3 has sufficient strength by using cement, ultra-light coarse aggregate, and ultra-light fine aggregate as main materials, and also has sufficient strength against light. The output ends 5 of the fibers 4 have a single picture pattern as a whole, and light of several colors is emitted from these output ends 5, making the picture pattern stand out. It has a beautiful appearance against the background of the color of part 3 and has excellent decorative properties.

Next, a method for manufacturing such an exterior material 1 will be explained based on the manufacturing method according to claim 2 of the present invention. First, a mold 7 for forming a rectangular plate-like body as shown in FIG. 2 is prepared. Here, in this formwork 7, a large number of holes 9 are previously bored in one of the formwork wall surfaces 8, and the large number of holes 9 are all arranged in a desired pattern. In addition, an extraction hole 10 for the optical fiber input end side is bored in the wall surface on the side opposite to the formwork wall surface 8. Next, Figure 3
As shown in the figure, the output end 5 of the optical fiber 4...
They are each inserted into one of the holes 9 so as to face the outside of the formwork 7 from the inside, and their incident ends are bundled together, passed through the draw-out hole 10, and pulled out from the inside of the formwork 7.

[0011] Next, a cement mixture for forming the above-mentioned concrete part 3 is prepared, put into the above-mentioned formwork 7, and after curing it, the formwork is removed and the above-mentioned exterior material 1 is placed. obtain. Here, as the cement-based kneaded material, for example, white cement (trade name [White Ordinary Portland Cement]; manufactured by Dainippon Cement Co., Ltd.) is used as the cement, and colored ultra-light coarse bone is added to 100 parts by weight of this white cement. 71 parts by weight of wood (trade name [Neolite G1, G2]; manufactured by Niijima Bussan Co., Ltd.) and white ultra-light fine aggregate (trade name [Neolite S1, S2]; manufactured by Niijima Bussan Co., Ltd.)
and 103 parts by weight of natural sand (trade name [Kawasand (Kashima)]; manufactured by Takeishi Sangyo Co., Ltd.), and further added water such that the water-cement ratio was 45 to obtain a water mixture. Add 4 pieces of high-performance water-reducing material (trade name [Sikament FF]; manufactured by Nippon Seeker Co., Ltd.) per 1 m3 of this water mixture.
6.9g, foaming agent (trade name [Seeker AER]; manufactured by Nippon Seeker Co., Ltd.) (10% aqueous solution) 11c
c. A mixture with 0.17 to 11.9 liters of face volume and further mixed with air of about 60% by volume is preferably used.

With such a manufacturing method, the exterior material 1 shown in FIG. 1 can be easily manufactured, and the output ends 5 of the optical fibers 4 can be arranged in a desired pattern or character shape. By doing so, the exterior material 1 having a beautiful appearance can be obtained. Note that the cement product and the method for manufacturing the same according to the present invention are not limited to the above-mentioned embodiments; for example, the incident end may be buried in concrete together with the light source, and the light source may be electrically controlled from the outside. Also,
In the above embodiments, the concrete product of the present invention was applied to exterior materials, but it goes without saying that it may also be applied to other interior fittings, interior materials, etc.

[0013]

Effects of the Invention As explained above, the composition for concrete with optical fiber according to claim 1 of the present invention is as follows:
Since the concrete part has sufficient strength and the output end of the optical fiber is arranged on the outer surface of the concrete part in the shape of a desired letter or pattern, the input end side of the optical fiber is By arranging the light source, light is emitted from the output ends of these optical fibers, and the characters or patterns stand out, creating a beautiful appearance and excellent decorativeness.

[0014] Furthermore, in the method for manufacturing a concrete product with optical fibers according to claim 2, a plurality of optical fibers are inserted into the holes of the formwork with their output ends facing outside the formwork, and the concrete mixture is inserted into the formwork. Since the concrete product is placed inside and cured, by removing the formwork it is possible to obtain a concrete product with a beautiful appearance and with the output end of the optical fiber disposed on the outer surface.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of applying the optical fiber-equipped concrete of the present invention to an exterior material, and is a schematic configuration diagram of the exterior material.

FIG. 2 is a diagram for explaining an example of the method for manufacturing concrete with optical fibers of the present invention, and is a perspective view of a formwork used.

FIG. 3 is a perspective view for explaining an example of the method for manufacturing concrete with optical fibers of the present invention.

[Explanation of symbols]

1 Exterior material 3 Concrete part 4 Optical fiber 5 Output end 7 Formwork 9 holes

Claims (2)

[Claims] Claim 1: A concrete product comprising a concrete part mainly made of cement, ultra-light coarse aggregate, and ultra-light fine aggregate, wherein a plurality of optical fibers are embedded in the concrete part, and the A concrete product with an optical fiber, characterized in that the output end of the fiber is arranged on the outer surface of a concrete part. 2. Prepare a mold in which a plurality of holes are arranged in a character shape or a pattern on the wall of the mold, and a plurality of optical fibers, and connect the optical fibers with their output ends. It is inserted into the above-mentioned hole so as to face the outside of the formwork, and the entrance side is bundled, and then the mixture obtained by kneading cement, ultra-light coarse aggregate, ultra-light fine aggregate, and water is inserted into the above-mentioned formwork. put in,
A method for manufacturing a concrete product with optical fibers, which comprises curing the product and then removing the formwork to obtain concrete in which optical fibers are embedded.