JPH03110203A - Paving material for road - Google Patents

Abstract

PURPOSE:To prevent a pedestrian from injuries and to prevent pedestrian sounds by providing projecting pieces of the same material as that of a tile to the entire surface of a concrete block side of the tile having rubber-like elasticity, and binding the tile to the block with intermediate binding elements. CONSTITUTION:Projecting pieces 7 with undercuts having triangular sections of the same material as that of a tile are provided to the entire surface of a concrete block 4 of the tile 1 having rubber-like elasticity. The tile 1 is bound to the concrete block 4 through cement mortar 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a road surface paving material having a two-layer structure of rubber-like elastic tiles and concrete blocks.

The road surface covering material of the present invention can be used for paving the roads of general sidewalks, community roads, shopping malls, amusement parks, parks, schools, nursery schools, kindergartens, etc.

[Conventional technology]

Conventionally, concrete, asphalt, tight stone materials,
There is a two-layer road paving material made of bricks or concrete blocks with ceramic material bonded to them. These paving materials are widely used due to their various advantages such as high strength, good durability, low cost, and good workability.

However, these conventional paving materials are used for specific purposes, e.g.
(a) Preventing or reducing injuries to pedestrians when they fall, (b) Improving the feeling of walking, (c) Reducing the amount of walking, (d) Paving with free shapes or color designs. (e) Improving elasticity and shock absorption properties cannot be fully satisfied.

[Problem to be solved by the invention]

An object of the present invention is to solve the above-mentioned problems that conventional types of road paving materials do not have with a two-layered road paving material in which ceramic tiles are bonded to concrete blocks.

[Means to solve the problem]

Conventional two-layer road paving materials consisting of ceramic tiles and concrete blocks can be easily manufactured by interposing mortar between the two, and the road surface can be formed by simply placing them in sequence on the roadbed. It is widely used because it allows easy formation of intended patterns on the road surface.

However, as mentioned above, conventional two-layer road paving materials have problems such as injury when falling, poor walking feel, and poor walking sound.
In order to solve this problem, attempts have been made to use tiles with rubber-like elasticity as the surface layer material instead of ceramic tiles, and to bond the two together via epoxy resin or resin mortar, but Equipon resin or resin mortar does not work. It is very expensive, and is undesirable for products that are produced in large quantities, such as road paving materials, as it causes an increase in cost.Furthermore, it is not satisfactory in terms of adhesive strength between the rubber-like intelligent body and the base concrete block. Ta.

As a result of intensive research to solve the above-mentioned problems, the present inventors have invented a method of firmly laminating tiles having rubber-like elasticity on the surface of a concrete block as a base.

In the present invention, when joining a rubber-like elastic tile and a concrete block as a base, the rubber-like elastic tile is integrally provided on the surface of the concrete block side with the same material as the rubber-like elastic tile. Through the interposition of protruding pieces or intermediate joining elements placed on the side of the elastomeric tile on the one hand and on the side of the concrete block on the other hand,
The objective is to firmly bond tiles with rubber-like elasticity to concrete blocks by adhering them with cement mortar or the like.

The term "intermediate joining element" as used in the present invention is not an academic term nor a term used in the industry, but is intended to be used to partially rest, e.g. Adhesives that bond tiles and concrete blocks that have rubber-like elasticity, such as cement mortar, enhance the anchoring effect, thereby firmly bonding the tiles that have rubber-like elasticity, cement mortar, and concrete blocks. Defined as a member that is integrated.

Examples of intermediate joining elements used in the present invention include aggregates, thin plates, etc. that have good adhesion to metal materials, cement mortar, concrete, etc.

Examples of metal materials used as intermediate joining elements include continuous metal pieces, such as wire coils, punched metal, rods, nails, and rivets; however, considering the anchoring effect on cement mortar, coils, punched metal, etc. with a surface area of Large metal materials are preferred.

In the present invention, the intermediate joining element made of metal material is placed in a press mold in advance up to about half of its height, and then molded into a tile having rubber-like elasticity by a predetermined method. A part of the metal material is embedded and fixed within the tile having rubber-like elasticity.

Aggregate with good adhesion to cement mortar, concrete, etc. as an intermediate joining element is, for example, a particle size of 3 to 7 m/m.
Coarse-grained sand is preferred. According to the invention, the aggregate as an intermediate bonding element is obtained by gluing a mixture of epoxy resin and aggregate to one side of a tile with elastomeric properties molded by a predetermined method, and placing some of the aggregate particles in an adhesive layer. By protruding from the surface of the cement mortar layer, an anchoring effect can be exerted on the cement mortar layer.

For example, slate is preferable as a thin plate having good adhesion to cement mortar, concrete, etc. for the intermediate joining element. According to the present invention, a thin plate, e.g. slate, as an intermediate joining element is cut into a desired shape and size and integrated so that a part of the slate is exposed on one side of the elastomeric tile which is molded by a predetermined method. By forming it, it is possible to exert an anchoring effect on the cement mortar layer.

In the present invention, the protruding piece that is integrally provided on the concrete block side surface of the tile that has rubber-like elasticity and is made of the same material as the tile that has rubber-like elasticity may have various shapes and sizes, but an undercut portion may be provided. This enhances the anchoring and adhesion effects to the adhesive layer such as cement mortar interposed between the tiles having rubber-like elasticity and the concrete block.

The present invention will be specifically explained below with reference to Examples.

[Example 1] The length, width and thickness are 200 m/m and 150 m/m, respectively.
A press mold for forming tiles with comb-like elasticity of 10 m/m and 10 m/m was prepared, and the press was pressed so that only 5 m/m of the iron coil with a height of 10 m/m was embedded in the tile with comb-like elasticity. They were placed along each side of the mold.

Next, the mold was filled with a mixture of separately prepared colored rubber chips and urethane resin, and after the mold was clamped, pressure was applied and heated for a certain period of time to produce a tile with comb-like elasticity with iron coils protruding from the bottom. .

Next, the length, width and thickness are each 200 m/m, 150
m/m and 60 m/m concrete blocks and the tiles having rubber-like elasticity were pressed together using cement mortar. When the manufactured laminate of tiles and concrete blocks with rubber-like elasticity was cut in the vertical and horizontal directions and the joint condition was checked, it was found that the cement mortar 3 was an intermediate joint element, ie, an iron coil, as shown in Figure 1. 2, the filling had an anchoring effect, and the four elements, tile 1 having rubber-like elasticity, iron coil 2, cement mortar 3, and concrete block 4, were firmly integrated. Incidentally, when the adhesive strength of tiles with rubber-like elasticity was measured using a Kenken type attachment tester, 12. OK gf/cm”.

[Example 2] The length, width and thickness are 200 m/m and 150 m/m, respectively.
After filling a mixture of separately prepared colored rubber chips and urethane resin into a press mold for forming tiles with rubber-like elasticity of 10 m/m and 10 m/m, the mixture is pressurized and heated for a certain period of time to achieve a predetermined rubber-like elasticity. A tile was manufactured with Next, coarse sand with a diameter of 3 to 7 m/m was adhered to one surface of this comb-like elastic tile using epoxy resin. Next, the length, width and thickness are each 200m/m, 15
The concrete blocks of 0 m/m and 50 m/m and the tiles having rubber-like elasticity were pressed together using cement mortar. When the manufactured laminate was cut in the longitudinal direction to check the bonding state, as shown in FIG. 2, the coarse grained sand 5 of the intermediate bonding element was anchored to the cement mortar 3, and the tile 1 had rubber-like elasticity. Coarse sand 5 and cement mortar 3 firmly integrated the concrete block 4. Adhesive strength was measured in the same manner as Example 1 and found to be 8.1k.
gf/Cm'.

[Example 3] The length, width and thickness are 200 m/m and 150 m/m, respectively.
m and 10 m/m tile forming mold, at the bottom of the mold,
The length, width and depth are 180m/m and 130m/m respectively.
A press mold provided with concave portions of 4 m/m and 4 m/m was prepared, and a slate plate separately formed to the same dimensions as the concave portion was fitted into the concave portion. Next, the press mold is filled with a mixture of separately prepared colored rubber chips and urethane resin, and after the mold is clamped, pressure is applied and heated for a certain period of time to produce a tile with rubber-like elasticity with a slate plate protruding from the bottom. did.

The slate plate used in this example had its surface treated with a brimer in advance to improve the adhesion between the rubber chips and the urethane resin mixture. Next, the length, width and thickness are 200m/m, 150m/+nR and 60m respectively.
m/m concrete block and the above tile having comb-like elasticity were pressed together through cement mortar. When the manufactured laminate was cut in the longitudinal direction and the bonding condition was checked, as shown in FIG. 3, the slate plate 6 of the intermediate bonding element was firmly adhered to the cement mortar 3, and the tile had rubber-like elasticity. 1. The slate board 6, cement mortar 3, and concrete block 4 were completely integrated.
Adhesive strength was measured in the same manner as in Example 1 and found to be 8.1k.
[Example 4] As shown in Fig. 4, a vertical tile with two undercuts with a triangular cross section was provided on the concrete block side surface of a tile with rubber-like elasticity. , width and thickness are each 200
Tiles with comb-like elasticity of m/m, 150 m/m and 10 m/m were produced.

Next, the length, width, and thickness of this rubber-like elastic tile were 200 m/m, 150 m/m, and 60 m, respectively.
/m concrete blocks were pressed together using cement mortar. When the manufactured laminate was cut in the longitudinal direction and the bonding state was checked, as shown in Fig. 4, the cement mortar 3 was filled up to the undercut part of the two protruding pieces 7, and the cement mortar 3 had a rubber-like elasticity. The tiles 1, cement mortar 3, and concrete block 4 were completely integrated.

Adhesion strength was measured in the same manner as in Example 1 and found to be 8°2k.
gf/Cm” ◇ [Effects of the invention] 1. Although it has high strength, it is inferior in elasticity and shock absorption.

In addition, the problems of conventional road surface paving materials, such as high walking noise, are solved all at once.

2. By interposing the intermediate joining element, strong adhesion can be achieved using inexpensive and easily available cement mortar instead of conventional expensive adhesives, resulting in a significant cost reduction.

3. Easy and strong adhesion is possible, allowing for mass production.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 4 are cross-sectional views of road pavement materials manufactured in Examples 1 to 4 of the present invention, respectively. 1... Tile with rubber-like elasticity 2... Iron coil 3... Cement mortar 4... Concrete block 5... Coarse sand 6... Slate board

Claims (1)

[Claims] A road surface paving material consisting of a two-layer structure of tiles with rubber-like elasticity and concrete blocks, in which the concrete block side of the tiles with rubber-like elasticity is integrally provided with the same material as the tiles with rubber-like elasticity. 1. A road surface paving material, characterized in that it is connected to one another by protruding pieces or by intermediate joining elements placed one on the side of the tiles with rubber-like elasticity and on the other hand on the side of the concrete blocks.