JP2003090055A - Base material for facing surface of concrete - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the exposure of a dry surface of concrete by covering a surface of a concrete structure with natural stones, and reduce costs of storage and transportation by reducing volume in stacking. SOLUTION: Lava is sliced in a thickness of 20 mm or less, and stuck for fixation on a base plate 2 such as a hollow extruded panel with an adhesive. Moisture is supplied to the lava 3 on the surface through a hole 5 which is provided in the base plate 2; and the porous lava 3 is constantly kept in a wet state. A hollow part is filled with a material in which a high water- absorbent resin is bagged, so that the moisture can be constantly supplied to the lava 3. The base material 2 is mounted on the surface of the existing concrete structure by a proper means, so as to hide an inorganic state of the surface of the concrete in a covering manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface decorative base material for a concrete structure, in which the exteriors such as retaining walls, quays, revetments, and columns such as concrete U-shaped grooves can be dissolved in the natural environment. , A concrete surface decorative base material capable of converting concrete into one effective for ecosystem conservation.

[0002]

2. Description of the Related Art Conventionally, in concrete structures such as retaining walls, revetments, concrete blocks and U-shaped grooves, the surface of the concrete is exposed, which also causes damage to the landscape. In addition, concrete structures include plants, small animals,
It is barren as a place for insects to grow, and the construction of concrete structures has destroyed the ecosystem.

For this reason, various concrete products have been developed in order to bring the landscape of an artificial concrete structure closer to a natural state, and natural stone is pasted or buried on the surface of a concrete block. ing. The applicant has proposed a concrete block in which natural stones are embedded, and a panel in which natural stones are attached so that the surface of an existing concrete structure can be decorated and made closer to nature. Furthermore, in JP-A-11-170798, a decorative material in which a surface decorative material such as natural stone is attached to a flexible sheet by an elastic adhesive is proposed, and the surface of a concrete structure is easily covered with natural stone. I was able to.

[0004]

However, it is troublesome and costly to attach the natural stone to the sheet, and the surface of the sheet may be visible between the attached natural stones.
In some cases, it was not possible to achieve the purpose of making the appearance more natural. In addition, natural stones such as lava used on the surface of blocks and panels were buried as a lump as it was, or cut in half and flattened on one side and attached to the panel with an adhesive, so the exposed side is a natural stone Is in a raised state,
Stacking panels with natural stones for storage and transportation took up a large volume and was inefficient in space utilization.

Further, although natural lava was used as a decorative material in about half, there is also a problem of depletion of natural resources, and it is necessary to efficiently convert natural resource lava into a decorative material for concrete structures. is there. INDUSTRIAL APPLICABILITY The present invention makes it possible to coat a concrete surface with a natural stone as a surface decorative material, and to effectively use natural resources to coat a large number of concrete surfaces with a natural stone. It is to make storage and transportation more efficient than panels.

[0006]

[Means for Solving the Problems] A decorative base material in which lava sliced to a thickness of 20 mm or less is adhered to the surface of a base material, and natural stone having a particle size of 10 mm or less is adhered to the gap between the lava and the lava to be filled . Since both sides of the lava to be attached to the panel are sliced into a thin plate, the amount of protrusion from the surface of the attached panel is small, and small natural stones are fixed in the voids between the natural stones. The entire surface was covered with natural stone. Since the lava is sliced thinly, the amount of protrusion from the panel is small,
Panels can be stacked efficiently, and space can be saved for transportation and storage, so costs can be reduced.

[0007]

EXAMPLE As shown in FIGS. 1 and 2, a cosmetic substrate 1
Consists of a substrate 2, lava 3, sand and pebbles (lava sand) 4, and holes 5. Since lava is porous and absorbs water, it has moisturizing properties, and since it is easy to maintain a wet state, moss easily grows on the surface. In addition, since microorganisms adhere to the small holes of the lava and can purify water, when used for a concrete canal or a river bank, it is possible to purify a contaminated river. In addition to the above, a porous natural stone material such as pumice, a porous lightweight aggregate, an artificial lightweight aggregate, or a porous concrete natural stone-like material may be used for the surface. Lava produced in Miyakejima, Tokyo has an absolute dry specific gravity of 1.2 to 1.5, a water absorption rate of 12 to 100%, and a high water absorption rate is obtained, which is preferable.

The lava 3 is sliced to a thickness of 20 mm or less, as shown in FIG. In the process of slicing, one with natural lava on one side and one with both sides sliced occur. If one surface is in a natural state, it will be used as an adjusting material for adjusting the amount of protruding lava in the decorative material during construction. It is preferable that the slice thickness of the lava is 15 mm or less and the volume when stacked is further reduced.

As the substrate 2, porous concrete, fiber reinforced plastic, wood, glass fiber reinforced cement, cement extrusion panel, iron plate, metal plate such as aluminum plate, metal plate having honeycomb structure and the like can be used. The substrate 2 does not need to be so thick and may be thin, and an extruded panel, a concrete plate having a mesh as a reinforcing material, or the like is economical.

The sliced surface of the lava 3 is attached to the surface of the substrate 1 with an adhesive or the like. The adhesive is preferably an epoxy type, a modified silicone type elastic adhesive, or a urethane type adhesive,
Urethane-based adhesives are more preferable because they have sufficient adhesive strength and do not leach the adhesive to adversely affect the environment. As the cement adhesive, a mixture of Portland cement and silica sand, for example, CR powder (trade name) manufactured by Daicel Chemicals Co., Ltd. is preferable. Further, a mixture of carbon fibers is preferable because it has elasticity even after being cured.

A grain size of 1 is provided between the lava 3 and the lava 3 which are pasted together.
It is necessary to fill and adhere the small-sized lava 4 or lava sand 4 having a diameter of 0 mm or less, preferably 5 mm or less to cover the entire surface of the substrate 2. Moss and grass seeds can be sown on the lava 4, and after installation at the site, grass and moss can be grown to completely cover the tasteless dry board surface.

When the substrate 2 is an extrusion-molded hollow panel, the hollow portion is filled with a water-retaining material such as cloth, sponge, or super absorbent resin. These water retention materials are installed by filling them in a net or a water-permeable / moisture-permeable bag. It is preferable to use a net that is naturally degradable. For water and moisture permeable bags, use Japanese paper and non-woven fabric.

As the super absorbent polymer, for example, starch-
Acrylonitrile graft polymer hydrolyzate, cellulose-acrylonitrile graft polymer hydrolyzate, clay (including montmorillonite, allofein), vermiculite, pearlite perlite,
For example, calcined diatomaceous earth.

[0014] As shown in Fig. 4, the mounting of the decorative base material 1 of the present invention is fixed as it is by an appropriate method to mount the existing concrete structure on the ecosystem as shown in Fig. 4. It can be converted into a suitable one for raising. For fixing the base material for makeup to the surface of the existing structure,
Use an appropriate method such as an adhesive or anchor.

As shown in FIG. 5, since the lava affixed to the surface of the cosmetic base material 1 is as thin as 20 mm or less,
Even when stacked during transportation or storage, the volume is compact compared to conventional cosmetic base materials. The environment of the construction site,
Since it may be desired to make the amount of protrusion of the lava for makeup from the substrate 2 large due to a problem in appearance, at least one flat surface of the lava is prepared and transported to the site, and fixed to the substrate 2 if necessary. The prepared lava is pasted with cement based adhesive as shown in FIG. The lava is porous, and the adhesive enters the small holes to obtain a strong adhesive force.

In the case of a revetment, the makeup lava 3 as a base material for makeup to be attached to the upper portion is sliced and left as it is, and the one to be attached to the lower water is fixed with the prepared lava. To make the environment easier for plants and small animals to grow.

As shown in FIG. 7, when lava for adjusting the protrusion is laid on the sliced lava 3 adhered to the substrate 2 and attached, a space is formed at the bottom of the attached lava, and insects and small animals are formed. It becomes the habitat area of.

[0018]

Industrial Applicability According to the present invention, an existing concrete structure can be easily improved into a surface cosmetic product which is kind to the natural environment and is suitable for the growth of an ecosystem at low cost and with low labor. In addition, the bare dry concrete surface is not exposed, and furthermore, it is possible to easily perform construction on revetments and slopes.

In the case of a revetment, the amount of protrusion of sliced lava is small, so the river cross section does not become small, and the volume when stacked is about 50% smaller than the conventional one, and in a stable state. They can be stacked and the volume for storage and transportation is reduced, which can greatly contribute to cost reduction. Furthermore, the surface of the lava is always kept moist, and moss grows in a short period of time, and along with the growth of moss, microorganisms multiply, insects inhabit, and biotopes form.

[Brief description of drawings]

FIG. 1 is a perspective view of a cosmetic base material.

FIG. 2 is a cross-sectional view of a base material for cosmetics.

[Fig. 3] Example of sliced lava.

FIG. 4 is a cross-sectional view of a makeup base material application example.

FIG. 5 is a cross-sectional view of a state in which makeup base materials are stacked.

FIG. 6 is an explanatory diagram of a case where lava is attached to increase the protrusion amount.

FIG. 7 is an explanatory diagram of a case of sticking over a lava.

[Explanation of symbols]

1 Base material for makeup 2 substrates 3 lava 4 lava sand 5 holes

Claims (6)

[Claims] 1. A lava sliced to a thickness of 20 mm or less is fixed to the surface of a substrate, and a grain size of 10 mm is provided in the gap between the lava.
Concrete surface makeup base material with the following natural stones fixed and filled. 2. A concrete surface cosmetic base material in which lava sliced to a thickness of 15 mm or less is adhered to the surface of a substrate, and natural stone having a particle size of 5 mm or less is adhered to the gap between the lava and to be filled. 3. The base material for decorative concrete surface according to claim 1, wherein the substrate is provided with a hole penetrating the back surface thereof. 4. The concrete surface makeup base material according to claim 1, wherein the substrate is a hollow member. 5. Concrete in which the amount of protrusion of the decorative material is changed by sticking lava having at least one flat surface to the lava of the surface decorative base material in which lava sliced to a thickness of 20 mm or less is adhered to the surface of the substrate Base material for surface cosmetics. 6. The concrete surface decorative base material according to claim 5, wherein a plurality of lava sliced and pasted onto the substrate, and lava for changing the protrusion amount is pasted over existing lava. .