JP3010761U - Makeup concrete board - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a decorative concrete plate with a beautiful finished surface and high added value in terms of products. [Constitution] Cavity prestressed concrete panel 2
The surface of is formed by a concrete layer 5 in which various aggregates 4 are mixed in the mortar 3, and the concrete layer 5 is ground and finished by a diamond wheel or a grindstone wheel to expose the ground surface of the aggregate 4 to the finished surface. , This gives a beautiful pattern on the finished surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a decorative concrete board used as a wall material or floor material for various buildings.

[0002]

[Prior art]

 Cavity prestressed concrete panels are known as conventional concrete boards used as walls and floors in various buildings.

This concrete panel has a cross-sectional shape having a width of 1 m or more and a plurality of cavities penetrating in the longitudinal direction, and a length required to be formed into a continuous long state of 150 m to 170 m. The product is made by cutting into pieces.

Conventionally, a method of forming a pattern on the surface of a concrete plate as described above to make a decorative concrete plate is to wash out the surface after molding the concrete plate and remove the mortar on the surface to remove the aggregate from the surface. The method of exposing to was adopted.

[0005]

[Problems to be solved by the device]

 However, since the wash-out finish only exposes part of the surface of the aggregate to the surface of the concrete plate in a protruding manner, it is not possible to effectively utilize the material characteristics of the aggregate, resulting in a beautiful and varied finish. However, there is a problem that it is difficult to obtain the aspect, and the commercial value of the product cannot be sufficiently improved.

Further, since a part of the aggregate is projected on the surface of the concrete plate, there is a problem that the types of aggregate that can be used are extremely narrow.

[0007] Therefore, an object of the present invention is to make a decorative concrete plate which has a wide variety of beautiful makeup on the surface and can improve the commercial value, and which can use a wide range of materials as a makeup aggregate. To provide.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention forms the surface of a cavity prestressed concrete panel with a concrete layer mixed with various aggregates, and grinds and finishes the surface of the concrete layer to obtain the aggregate. It adopts a structure in which the ground surface of is exposed.

In this invention, the prestressed concrete panel of the cavity has a width of 1 m or more and an arbitrary length, and is formed by providing a plurality of cavities penetrating in the lengthwise direction, and the bone of the surface concrete layer is formed. Stone materials such as natural gravel and crushed stone can be used as the material, and industrial waste such as glass crushed sand and solidified sludge can be used as the aggregate of the surface concrete layer.

[0010]

[Action]

 Grinding the surface concrete layer of the prestressed concrete panel in the cavity, the mortar and aggregate are scraped off, the ground surface of the aggregate is exposed on the surface, and a beautiful and varied finished surface is obtained. It is possible to adjust the rough surface and the smooth surface depending on the grinding conditions and the grinding conditions.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 and FIG. 2, the decorative concrete board 1 has a surface of a prestressed concrete panel 2 formed by a concrete layer 5 in which mortar 3 and various aggregates 4 are mixed. The surface is ground and finished, and the ground surface of the aggregate 4 is exposed on the surface.

The prestressed concrete panel 2 has a cross-sectional shape with a width of 1 m or more and a cavity 2a penetrating along the length direction, and is integrally molded into a continuous long object of, for example, 150 m to 170 m. The product is obtained by cutting it to a required length, for example, 3 m to 13 m. The PC line for introducing the prestress is not shown.

The concrete layer 5 provided on the surface of the panel 2 is formed integrally with the surface of the panel 2 in a required thickness, for example, a thickness of 5 to 15 mm, during the continuous molding of the panel 2.

As the aggregate 4 used for the concrete layer 5, stone materials such as natural gravel or crushed stone having a size equal to or larger than sand, crushed sand of bottles and glass, industrial waste such as solidified sludge, and the like can be used. For example, when using a stone material, it is possible to select one having various particle sizes and color tones, such as granite, marble, and Naguroishi.

The mortar 3 of the concrete layer 5 may be either water-impermeable or water-permeable to some extent depending on the purpose of use of the decorative concrete board 1, and the color tone of the mortar 3 in combination with the aggregate 4 It may be selected according to the usage conditions.

FIGS. 3 and 4 show a grinder 11 for grinding the surface of the concrete layer 5 of the decorative concrete plate 1, which is placed on both sides of the placing bed 20 of the decorative concrete plate 1 sandwiching the concrete plate 1. A roller 12 for meandering prevention is provided, and grinding units 14, 15 and 16, 17 are provided at positions on both sides before and after the bogie 13 which is self-propelled in the length direction of the concrete plate 1. .

Each of the grinding units 14, 15 and 16, 17 is mounted so as to rotate a plurality of diamond wheels or grinding wheels 19 around the lower surface of the disk 18 which is rotated and moved up and down by a motor. Furthermore, the whole is designed to laterally move in the width direction of the decorative concrete plate 1, and if the wheel 19 that has been lowered is caused to rotate and revolve as the truck 13 travels, the surface of the concrete layer 5 will be continuous. Can be cut efficiently.

The decorative concrete board 1 of the present invention is configured as described above, and as shown in FIG. 3, after the decorative concrete board 1 is formed on the casting bed 20 and cured, the grinder 11 is made up. The aggregate 4 and the mortar 3 of the concrete layer 5 are ground and removed by running the concrete plate 1 in the longitudinal direction and grinding the concrete layer 5 by a required amount of wheel 19 that rotates and revolves. A finished surface is obtained in which the ground surface of is exposed on the surface.

The decorative concrete board 1 can express a colorful and random pattern by selecting the type and amount of the aggregate 4 used for the concrete layer 5, and can freely set the color tone and gloss.

Further, a rough surface or a smooth finished surface can be obtained by selecting the grinding conditions for the concrete layer 5 by the grinder 11.

The decorative concrete board 1 can be used not only as a wall material or floor material for various buildings, but also as a floor material that does not slip on the pool side, or can be used as a sidewalk floor board by imparting water permeability.

[0023]

[Effect of device]

 As described above, according to the present invention, the concrete layer mixed with aggregate is provided on the surface of the cavity prestressed concrete panel, and this concrete layer is ground and finished, so that the ground surface of the aggregate is exposed on the finished surface. By selecting the aggregate, it is possible to obtain a beautifully finished surface with a colorful and glossy effect, and it is possible to significantly improve the commercial value of the decorative concrete board.

In addition, a wide range of materials can be used as aggregates, from natural stone materials to industrial waste.

[Brief description of drawings]

FIG. 1 is a perspective view of a decorative concrete board according to the present invention.

FIG. 2 (A) is a vertical sectional front view of the same, and FIG. 2 (B) is an enlarged sectional view of a main part of the same.

[Fig. 3] Front view of the grinder

FIG. 4 is a plan view of the above.

[Explanation of symbols]

 1 Decorative concrete board 2 Prestressed concrete panel 3 Mortar 4 Aggregate 5 Concrete layer

Claims (3)

[Scope of utility model registration request] 1. A surface of a cavity prestressed concrete panel is formed by a concrete layer in which various aggregates are mixed, and the surface of this concrete layer is ground and finished.
A decorative concrete board with the ground surface of the aggregate exposed. 2. A prestressed concrete panel for a cavity has a width of 1 m or more and an arbitrary length, and is formed by providing a plurality of cavities penetrating in the lengthwise direction, and the aggregate is used as a natural material for the surface concrete layer. The decorative concrete board according to claim 1, wherein a stone material such as gravel or crushed stone is used. 3. The decorative concrete board according to claim 1, wherein industrial waste such as crushed glass sand and solidified sludge is used as an aggregate of the surface concrete layer.