JPH0724810A - Coloration of cementitious curing material and form plate used therein - Google Patents

Abstract

PURPOSE:To uniformly color a surface without moving a coloring material along with a cementitious curing material. CONSTITUTION:A water permeable material 4 containing a coloring material is placed on or bonded to the contact surface with a cementitious curing material 5 of a form plate 2. As the coloring material, pigment, a dye or a dispersion of pigment and a dye is used. As the water permeable material 4, various materials such as a nonwoven fabric, a glass fiber or a synthetic resin fiber can be used other than a fabric. The cementitious curing material 5 such as concrete is cast so as to come into contact with the form plate 2. By this constitution, even when vibration is applied by a vibrator or the curing material flows out by slump, the coloring material does not flow out. The coloring material is mixed with the particles in the curing material when the particles pass through the water permeable material and a colored layer free from color irregularity is formed between the form plate and the water permeable material 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cement-based hardening material permeation coloring method for coloring a cement-based hardening material such as concrete or mortar by infiltrating or mixing it with a coloring material, and a form board used for the method.

[0002]

2. Description of the Related Art It has been adopted to color cement-based hardening materials such as concrete and mortar so that the surface of the hardening materials resembles natural objects such as rocks. For example, at the factory, coloring materials such as pigments and dyes are applied to the surface of the formwork where the hardening material is placed, and concrete or mortar is placed on this formwork to form a plate on which a simulated rock is formed. , This may be transported to the site and piled up, and concrete may be placed on the back side of this board to build a retaining wall. A plate mixed with a coloring material appears on the surface of the retaining wall, giving a texture similar to natural stone.

In the case of construction on site, form plates made of a foamed synthetic resin material coated with a coloring material are piled up side by side, and concrete or the like is placed in contact with the form plates so that the surface is It is used to build fences that are colored and have a natural texture.

[0004]

Problems to be solved when coloring the cement-based hardening material in the above-mentioned factories, etc. are that the vibration is applied by the vibrator after the hardening material is poured into the form, so that the surface of the form plate is That is, the applied coloring material flows out. As shown in FIG. 5, unevenness b is formed on the surface of the formwork plate a in order to imitate natural stone, and the coloring material c is applied to the entire surface. However, when the mold is vibrated, the coloring material c that has been applied melts into the poured hardening material, moves with the concrete, and is biased near the four circumferences of the mold. As a result, a plate with only the surface near the four edges colored is formed,
It was a product with uneven color. In particular, when a mold release agent such as oil is applied on the surface of the form plate a and the coloring material c is applied thereon, it is difficult to dry and the coloring material c is more likely to move due to vibration. In addition, if the coloring material is completely dried to make it difficult for the coloring material to move, the production interval becomes too open, resulting in a significant decrease in production efficiency. If the demolding agent is water-based, it may be difficult to demold it when completely dried, and the mold or the product may be broken.

When pouring concrete or the like using a formwork plate coated with a coloring material on site, the coloring material flows out while the concrete is being poured into the formwork, and when the concrete flows down, There is a problem that the coloring material moves. That is, as shown in FIG. 7, even if the coloring material c is applied to the surface of the form plate d, the placed concrete e moves,
The coloring material c flowing from the form plate d into the concrete e also moves together. Particularly in the case of concrete e where a high slump flows easily, the coloring material c also moved greatly, and the coloring material c moved to the left and right of the mountain of concrete e in FIG. In order to prevent this as much as possible, in order to reduce the flow of concrete e, concrete e is placed right next to the concrete e that has been struck once to prevent slump, but the task of placing it is extremely troublesome. Had.

The present invention has been made in order to solve the above problems, and it is a cement which does not move a coloring material, does not cause color unevenness in a product or a structure, and can remarkably enhance the production efficiency. An object of the present invention is to provide a method for coloring a hardened material and a form plate used for the method.

[0007]

A method for coloring a cement-based hardening material according to the present invention and a formwork plate used for the method are used when a cement-based hardening material is used to form a board made of the hardening material in factory production. Alternatively, it can be carried out either when the cement-based hardening material is cast on the formwork on site to construct a structure or the like. In the present invention, the mold plate is a plate that forms a mold into which a cement-based hardening material is poured in a factory or the like, and refers to a plate that forms a mold to be installed on the side where surface coloring is to be performed on site. is there. Usual materials can be used for the form plate, and various materials such as steel plate, plywood, and rubber can be used. In addition, the discarding form material using the foamed synthetic resin material is also included in the form plate.

A water-permeable material is placed or attached to the contact surface of this form plate with the cement-based hardening material. Cement-based hardener refers to concrete, mortar, cement milk, etc. The coloring material is a pigment or a dye, or a mixed material of a pigment and a dye dispersed in a liquid such as water. Conventional inorganic or organic pigments or dyes can be used. To disperse is to disperse particles in a dispersion liquid such as water or a solvent, and a pigment that is an insoluble fine powder, or a dye that is a powder particle smaller than the pigment is distributed in the dispersion liquid, It is a state where the liquid is colored in the color of the pigment or dye. A water-permeable material is a material that has fine meshes and allows water and cement particles to pass through, and various cloth-like fibers such as normal cotton and non-woven fabric, paper, glass fiber, asbestos, synthetic resin fiber, etc. Various materials can be used. In order to ensure water permeability, it is possible to adopt a device such as making many small holes in these things.

The coloring material described above is included in this water-permeable material. The term “to include” may be applied to a water-permeable material or may be dipped and impregnated. This water-permeable material is placed on the form frame plate or bonded by an adhesive. As the form plate, a conventional one such as one made of rubber, plywood, or steel can be used. Further, a mold frame plate molded of a disposable foam synthetic resin material can also be adopted. A cement-based hardening material is cast so as to be in contact with the water-permeable material of this form plate, and the coloring material contained in the water-permeable material is permeated or mixed into the cement-based hardening material to be colored. In addition, in order to include it, it is also possible to first attach the water-permeable material to the form plate and then apply the coloring material so as to include it.

The coloring material may be neutral or acidic, but it may be alkaline. Cement-based hardening material is usually PH1
The coloring material is alkaline in the range of 2 to 13, and if the coloring material is also made alkaline so as to be compatible with it, the penetration of the coloring material into the hardened material becomes good. A pH of about 8 to 13 is suitable for the coloring material. Various materials can be adopted as the material for making the alkalinity, and basic materials such as sodium hydroxide, potassium and slaked lime can also be adopted. If this material is directly mixed with the coloring material and stirred, the coloring material becomes alkaline.

[0011]

[Function] A water-permeable material containing a coloring material is placed on one surface of a form plate or is adhered to it, and the hardening material is moved in the form frame by vibrating at the factory to be contained in the water-permeable material. A part of the colored material that has migrated moves together with the curing material. However, most of the coloring material remains in the water permeable material,
It mixes with particles of the hardener that pass through this water-permeable material. The particles escape between the water permeable material and the surface of the form plate, forming a layer of colored hardener. When the coloring material is alkaline, the compatibility with the cement-based hardening material is further improved. In the case of on-site construction, even if the curing material slumps and flows, the coloring material does not flow out, and it mixes with the particles of the curing material, so that the surface can be uniformly colored. The water-permeable material is left in the hardened hardened material. The water permeable material reinforces the surface of the hardened material, and particularly when the water permeable material is glass fiber or the like, the degree of reinforcement is higher.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. In FIG. 1, 1 is a formwork, which is used when a concrete board is produced in a factory. The formwork 1 has a rubber box shape, and a bottom face side is a formwork plate 2. The formwork plate 2 has irregularities formed on its surface for forming a simulated stone material. The water-permeable material 4 cut as required is placed in the concave portions 3 of the unevenness. Nonwoven fabric is used as the water permeable material 4, and the water permeable material 4 is impregnated with a coloring material in which a pigment is dispersed. Concrete 5 which is a cement-based hardening material is placed on this. When the table 5 of the vibrator is vibrated to give vibration to the concrete 5, the concrete 5 moves so as to convection in the mold 1, but the coloring material does not move so much. Instead, the coloring material is mixed with the particles in the concrete 5 passing through the water-permeable material 4, and a colored layer is formed between the water-permeable material 4 and the surface of the mold plate 2.

In FIG. 2, reference numeral 4 denotes a single water-permeable material, which is placed so as to cover the mold 1. Even in such a case, the work procedure such as pouring of concrete 5 and vibration is the same, and the particles of the hardening material also pass through the water-permeable material 4 to form a colored layer on the surface. Even when the mold plate 2 of the mold 1 has not only a flat surface but also irregularities as shown in FIG. 1, a single water-permeable material 4 can be used in this way.

FIG. 3 shows an in-situ construction, in which a plurality of mold plates 2 made of foamed synthetic resin material are stood upright and stacked, and supported by a plywood plate 6. Formwork plate 2
A water-permeable material 4 impregnated with a coloring material is adhered to each of the concave portions 3 by an adhesive. This form board 2
Concrete 5 is poured between the formwork plate 2 and the dam plate 7 facing each other. Even if the concrete 5 slumps and flows, since the coloring material is impregnated in the water-permeable material 4, it does not easily flow out. As shown in FIG. 4, the particles in the concrete 5 pass through the water permeable material 4 to form a colored layer 8 between the particles and the surface of the formwork plate 2. Such in-situ casting is similar to the work of forming an L-shaped retaining wall having an L-shaped cross section in a factory, and can be applied when the form plate 2 is erected and punched like an L-shaped retaining wall.

In the above embodiments, the surface hardening agent is not mixed with the coloring material, but in the case where the cement hardening material is placed in a state where the coloring material is not completely dried, the acrylic resin is added to the coloring material. You may mix surface hardening agents, such as. Even if there are pigments and dyes that are not completely mixed in the cement-based hardening material, the surface hardening agent hardens them and the pigments and the like do not drop even if they are touched by hand.

[0016]

The present invention has the above-mentioned structure and can obtain the following effects. Since the coloring material is included in the water-permeable material, even if the cement-based hardening material moves due to vibration of the vibrator or slump, the coloring material does not move much. The coloring material adheres to or mixes with the particles in the curing material that has passed through the water-permeable material, and a colored layer is reliably formed on the surface, so that coloring can be performed without uneven color. By making the coloring material alkaline, the penetration of the coloring material into the hardening material is improved, and the coloring layer becomes thick enough that the skin of the hardening material is not exposed even if it is chipped to some extent. Since the water-permeable material is left in the hardened material, the water-permeable material reinforces the hardened material and the surface becomes stronger.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a water-permeable material is placed in a mold.

FIG. 2 is a perspective view showing a state in which a mold is covered with a water-permeable material.

FIG. 3 is a perspective view of a construction state on site.

FIG. 4 is a cross-sectional view of an on-site construction state.

FIG. 5 is a plan view of a manufacturing state using a conventional mold.

FIG. 6 is a cross-sectional view of a manufacturing state using a conventional mold.

FIG. 7 is an explanatory diagram of a conventional construction state at the site.

[Explanation of symbols]

 1 Formwork 2 Formwork plate 3 Recessed part 4 Water-permeable material 5 Concrete 6 Plate 7 Weir plate 8 layers

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[Procedure amendment]

[Submission date] January 19, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 5]

[Figure 6]

[Figure 7]

[Figure 3]

[Figure 4]

Claims (7)

[Claims] 1. A cement-based hardening material is obtained by placing or adhering a water-permeable material containing a coloring material in which a pigment or dye or a mixed material of both is dispersed on the contact surface of the form board with the cement-based hardening material. A method for coloring a cement-based hardening material, in which a coloring material that has been cast into a water-permeable material is permeated or mixed into the cement-based hardening material for coloring. 2. The method for coloring a cement-based hardening material according to claim 1, wherein the coloring material is alkaline. 3. The method for coloring a cement-based hardening material according to claim 1, wherein cloth-like fibers are used as the water-permeable material. 4. A cement-based hardening material-colored form plate comprising a water-permeable material containing a coloring material in which a pigment or a dye or a mixed material of both are dispersed and which is attached to a contact surface with a cement-based hardening material. 5. The cement-based hardening material colored form plate according to claim 4, wherein the coloring material is alkaline. 6. The cement-based hardening material colored mold plate according to claim 4, wherein cloth-like fibers are used as the water-permeable material. 7. The cement-based hardening material-colored mold plate according to claim 4, wherein the mold plate is made of a foamed synthetic resin material.