JPH03115601A - Asphalt paving plate and its manufacture and construction method - Google Patents

Abstract

PURPOSE:To improve appearance by scattering grains for decoration on the surface of asphalt plied timer which is made by adding more than the predetermined percentage of aggregate and filler to decolored asphalt in such a way that they are imbedded, mounting them on a foundation, and grinding the surface. CONSTITUTION:More than 95% of crushed stone 1 as aggregate, lime stone powder as filler, and red oxide as colorant are blended and added to decolored straight asphalt 9 to form asphalt paving plate A of adequate size. Beads 17 as grains for decoration are scattered on the surface of the plate A in such a way that they are imbedded. Next, water permeating asphalt concrete 21 is spread evenly on a road bed 20 made of tightened and fixed crushed stones to form a basic layer 22. The plate A is mounted on the basic layer 22 and water permeating asphalt 24 serving as filler is buried in the joint and 23. The surface layer is ground by wire brush to perform finish. Thus, it is possible to improve appearance of the paving plate.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to an asphalt paving board for paving general sidewalks, promenades in parks, porches, terraces, etc., beautifully and with good water permeability, and a method for manufacturing the same and a method for constructing the same. It is something.

Mouth Conventional technology.

In recent years, with the development of petroleum refining and petrochemical industries, asphalt has been produced in large quantities and at low cost. Various aggregates and fillers are kneaded into it, and in order to improve their recessive properties, asphalt is mixed with natural rubber, synthetic rubber, or heat-cured rubber. Adding a synthetic resin, etc.
Although it was widely used as an asphalt mixture for road paving, only black asphalt mixture was used for paving general sidewalks, promenades in parks, porches, terraces, etc.

C. Problems to be Solved by the Invention As explained above, conventional pavement asphalt has undergone various improvements to improve its quality, but pavements constructed with asphalt mixture have extremely poor water permeability and It lacked beauty. And, like ceramic paving boards, there were no paving boards that were beautifully colored or colorfully patterned and interlocked to pave. Therefore, paving asphalt has not been used in places where aesthetic harmony with the surrounding landscape and buildings is required.

2. Means to solve the problem.

In view of the above-mentioned problems with conventional paving asphalt, the present invention provides a paving board that has beautiful gloss and color, has good water permeability, and is inexpensive, as well as a method for manufacturing and a method for constructing the same. A step of coloring an asphalt mixture made by blending 95% or more of appropriate additives such as aggregates and fillers with bleached asphalt, a step of molding the colored asphalt mixture into a plate shape of an appropriate size, and This is a method for manufacturing asphalt pavement boards, which comprises the steps of scattering decorative granules on the surface of a formed asphalt mixture and rolling it, and cutting the rolled asphalt mixture into an appropriate shape. The asphalt pavement board obtained by this method is a mixture of bleached asphalt with appropriate additives such as aggregates and fillers in an amount of 95% or more, and decorative granules are embedded in the surface layer of the colored asphalt mixture. It's about what happens. Then, the asphalt paving board,
They are placed at appropriate intervals on a foundation made by layering a base layer made of a water-permeable asphalt mixture on a roadbed made of crushed stone, their joints are filled with a joint filler, and the surface layer is polished. It is in.

In addition, in the above-mentioned method for manufacturing an asphalt pavement board, there is a method for manufacturing an asphalt pavement board that adds a step of polishing the surface layer of the compacted asphalt mixture between the step of rolling and the step of cutting. The asphalt pavement board obtained by the manufacturing method is a mixture of bleached asphalt with appropriate additives such as aggregates and fillers in an amount of 95% or more, and polished decorative granules on the polished surface of the colored asphalt mixture surface layer. The reason lies in the fact that the bodies are scattered in an embedded manner.

Then, the asphalt pavement plates are placed at appropriate intervals on a foundation made of a base layer made of a water-permeable asphalt mixture over a roadbed made of crushed stone, and their joints are filled with a joint filler. It is in.

(e) Color the asphalt mixture by adding 95% or more of aggregate and filler to bleached asphalt, mold the colored asphalt mixture into a plate of an appropriate size, and apply decorative granules to the surface layer of the asphalt mixture. When the asphalt mixture is spread and compacted, and the compacted asphalt mixture is cut into an appropriate shape, decorative granules are formed on the surface layer of the colored asphalt mixture to which 95% or more of aggregates, fillers, etc. have been added. Asphalt pavement slabs scattered in an embedded manner are obtained.

Then, the asphalt pavement plates are placed at appropriate intervals on a foundation made of a base layer made of a water-permeable asphalt mixture over a roadbed made of crushed stone, and their joints are filled with a joint filler, The surface layer is polished and paved.

In addition, in the method for manufacturing asphalt pavement boards, an asphalt pavement board may be manufactured by adding a step of polishing the surface layer of the rolled asphalt mixture between the rolling process and the cutting process. . The asphalt pavement board obtained by this manufacturing method is made by mixing appropriate additives such as aggregate and filler with 95% or more of decolorized asphalt, and has a polished surface of the colored asphalt mixture surface layer for decorative purposes. The granules are scattered in an embedded manner.

Then, the asphalt pavement plates are placed at appropriate intervals on a foundation made of a base layer made of a water-permeable asphalt mixture over a roadbed made of crushed stone, and their joints are filled with a joint filler. Pave.

EXAMPLE An example of an asphalt pavement board, a method for manufacturing the same, and a method for constructing the same according to the present invention will be described based on the drawings.

Fig. 1 is a block diagram showing an outline of the manufacturing process of asphalt pavement boards, in which crushed stone 1 and fine sand 2 as aggregates are
It is pulled out from each silo and sent to a belt feeder in a dryer by a belt conveyor, where the drying process 3 is performed.

The composite particle size of the aggregate at this time is as follows.

Full line (mm)・20. 13.0. 5.
0. 2゜5゜grain size (%)・100. 9
5.9. 32.6. 17.9゜ full lay eye (m
m)・0.3. 0.074 grain size (%)・
8.0. 4. ．． 2 Crushed stone 1 and fine sand 2 are mixed and heated for about 5 seconds by hot air sent from a blower 4 and a combustion burner, and their temperature is 160°C to 160°C.
When the temperature reaches 70°C, it is sent to a vibrating screen by a hot elevator, and the process of sieving 5 is performed by the vibrating screen.

The crushed stone 1 and fine sand 2 that have been filtered are weighed 6 using a measuring device, and the required amount is sent to a mixer.

Meanwhile, limestone powder as filler 8 and 155℃~160℃
The decolorized straight asphalt 9 heated to 0.degree. C. is also measured 6 using a measuring device, and the required amount is sent to the mixer. The above-mentioned raw materials sent to the mixer are then subjected to the kneading and coloring step 7 by the mixer. That is, those raw materials are mixed for about 35 seconds, during which time Bengara l○ is added as a pigment and colored, and the temperature of the mixture is 155.
When the temperature reaches 160°C to 160°C, wet mixing by the mixer is completed and a colored asphalt mixture 11 is obtained.

The composition of this asphalt mixture 11 is as follows.

Crushed stone -67.1% (sieve mesh 13-5mm)
〃 ・ ・ 12.0% (sieve 5-2.
5mm) Fine sand... 12.0% Stone powder... 4.8% Asphalt... 4.1% Total... 100.0% Next, this asphalt mixture 11 was added to a horizontal and internal width of about 1500m.
A step 12 is performed in which the material is packed into a mold having a vertical inner width of about 900 mm and a depth of about 32 mm, and molded into a plate shape.

After the molding, a process of bead scattering 13 is performed, and beads with diameters of 2 mm, 3 mm, and 4 mm are applied to the surface layer of the asphalt mixture 11.
1.2 to 1.5 beads as decorative granules are scattered per square centimeter. Next, a finishing rolling process 14 is performed using rolling rollers, and the negative part of each bead is buried in the asphalt mixture 11, and the whole is finished. Then, the surface layer of the asphalt mixture 11 is subjected to a polishing step 15 using a wire brush, so that the beads are polished and have a beautiful luster. As a final step, for the asphalt mixture 11 containing beads,
A cutting step 16 is performed using a cutting machine, and the asphalt pavement board A is completed by cutting into a weldable square board shape having a width of about 300 mm, a length of 150 mm, and a thickness of about 30 mm.

As a separate method for producing asphalt paving plates according to the present invention,
There is also a method of manufacturing an asphalt pavement board A' which is polished at the time of construction by omitting the step 15 in the process of the above embodiment.

In this example, pigment powder may be added as an aggregate, or titanium oxide, chromium oxide, cobalt blue, or the like may be used as a coloring agent.

In addition, the synthetic particle size of the aggregate, the composition of the asphalt mixture, the size and distribution density of beads, the dimensions and shapes of molds and paving plates, and other processing conditions are not limited to the above examples. It may be changed as appropriate depending on the place of use and purpose of use.

Furthermore, the decorative granules may be made of materials other than beads that have appropriate hardness and can be polished, such as hard synthetic resin.

Next, an asphalt pavement board manufactured by the manufacturing method as described above will be explained.

In Fig. 2, A is an asphalt paving board, consisting of decolorized straight asphalt 9, crushed stone 1 as aggregate, and fine sand (
(not shown), limestone powder as filler (not shown)
and Bengara as a coloring agent were added, and they were kneaded and colored brown, and the width was about 300 mm and the height was about 150 mm.
It is molded into a rectangular plate shape that can be joined and has a thickness of approximately 30 mm. Then, on the surface layer of the asphalt pavement board A, beads 17 as polished decorative particles with diameters of 2 mm, 3 mm, and 4 mm are placed at 1.0 mm per square centimeter.
2 to 1.5 pieces are scattered in an embedded pattern.

As this asphalt pavement board A contains approximately 95.9% of additives such as aggregate and filler in its composition, it is extremely porous and highly permeable, and is an aesthetically colored asphalt pavement board. The material 11 and the shine of the polished beads 17 scattered on its surface give it a beautiful appearance.

In addition, in the manufacturing process, asphalt pavement plate A' in which the polishing step 15 of the beads 17 is omitted, the beads 1 on the surface of the asphalt pavement plate A' are
The quality is exactly the same as that of the asphalt pavement board A above, except that No. 7 has less shine.

The construction method for paving sidewalks etc. using the asphalt paving board A described above is as shown in the third diagram, on a roadbed 20 which has been compacted with crushed stone 1 etc. with a road roller until it exceeds the specified level.
Water-permeable asphalt concrete 21 is spread with an asphalt finisher to form a base layer 22, and the base layer 2
It is preferable to arrange asphalt paving plates A on 2 at intervals of 5 to 7 mm, and fill the joints 23 with water-permeable asphalt 24 as a joint filler.Also, in the manufacturing process, the step 15 of polishing the beads 17 is omitted. The construction method for paving sidewalks, etc. using the asphalt paving board A' is that after filling the joints 23 in the construction method of the asphalt paving board A, the surface layer of the asphalt paving board A' is cleaned with a wire brush. The construction method is exactly the same as the asphalt pavement board A described above, except for the polishing and finishing work.

G. Effects of the Invention The asphalt pavement board and its manufacturing method and construction method according to the present invention are characterized in that appropriate additives such as aggregates and fillers are blended in an amount of 95% or more, and the colored asphalt mixture is coated on the surface layer for decoration. Since the method involves scattering granules and polishing the surface, asphalt paving boards manufactured by this method, as well as sidewalks and porches paved with the asphalt paving boards, are extremely porous and highly permeable. In addition, the beautiful appearance of the colored asphalt mixture and the shine of the decorative granules sprinkled on the surface and polished give it a beautiful appearance that blends well with the surrounding landscape and buildings. Its practical value is great.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an outline of the manufacturing process of an asphalt paving board according to the present invention, Fig. 2 is a perspective view of an asphalt paving board manufactured by the manufacturing method, and Fig. 3 is a construction of the asphalt paving board. 1. Crushed stone, 2. Fine sand, 3. Drying, 4.
Blower, 5. Sieve, 6. Measuring, 7. Kneading/coloring,
8. Limestone powder, 9. Decolorized straight asphalt,
10... Valve handle, 1 door asphalt composite material, 12... Molding,
13... Beads scattering, 14... Finish rolling, 15... Polishing 16... Cutting, 17... Beads, 20... Roadbed, 21
・・Permeable asphalt concrete 22・・Base layer, 2
3. Joint area, 24. Permeable asphalt, asphalt paving board

Claims (1)

[Scope of Claims] 1. A step of coloring an asphalt mixture made by blending 95% or more of appropriate additives such as aggregate and filler with bleached asphalt, and forming the colored asphalt mixture into a plate shape of an appropriate size. Asphalt pavement board is made of asphalt pavement, which consists of a step of forming the asphalt mixture into a shape, a step of scattering decorative granules on the surface of the formed asphalt mixture and rolling it, and a step of cutting the rolled asphalt mixture into an appropriate shape. Production method. 2. Asphalt pavement board 3, consisting of bleached asphalt mixed with 95% or more of appropriate additives such as aggregates and fillers, and decorative granules embedded in the surface layer of a colored asphalt mixture 3. Decolored asphalt The asphalt pavement board is made of crushed stone and is made of crushed stone, with decorative granules embedded in the surface layer of colored asphalt mixture and containing 95% or more of appropriate additives such as aggregate and filler. The method is characterized in that the joints are placed at appropriate intervals on a base layer made of a water-permeable asphalt mixture layered on a roadbed, the joints are filled with a joint filler, and the surface layer surface is polished. Construction method of asphalt paving board. 4. A step of coloring an asphalt mixture made by blending 95% or more of appropriate additives such as aggregates and fillers with bleached asphalt, and a step of molding the colored asphalt mixture into a plate shape of an appropriate size; A process of scattering decorative granules onto the surface of the formed asphalt mixture and rolling it, a process of polishing the surface of the rolled asphalt mixture, and cutting the polished asphalt mixture into an appropriate shape. A method for manufacturing an asphalt paving board, which comprises the steps of: 5. Asphalt made of bleached asphalt mixed with 95% or more of appropriate additives such as aggregates and fillers, and in which polished decorative granules are embedded and scattered on the polished surface of the colored asphalt mixture surface layer. Paving board. 6. Asphalt made of bleached asphalt mixed with 95% or more of appropriate additives such as aggregates and fillers, and in which polished decorative granules are embedded and scattered on the polished surface of the colored asphalt mixture surface layer. Paving plates are arranged at appropriate intervals on a foundation made of a base layer made of a water-permeable asphalt mixture over a roadbed made of crushed stone, and the joints are filled with a joint filler. Construction method of asphalt paving board.