JPH08326006A - Rubber mat for melting snow and road-surface paving material for melting snow - Google Patents

Abstract

PURPOSE: To obtain a rubber mat for melting snow and a road-surface paving material easy to melt snow on a road surface by mixing granularly crushed charcoal into rubber chips acquired by working a vulcanized rubber and unifying the rubber chips and charcoal by a binder. CONSTITUTION: A rubber mat for melting snow is prepared in such a manner that granularly crushed charcoal is mixed into rubber chips obtained by working a vulcanized rubber in a granular shape or a short fiber shape and the rubber chips are crosslinked by a binder such as urethane and worked tabularly, and the rubber mat is fixed onto the surface of a road surface by using an adhesive or studs such as anchor bolts. Granular substances having a mean diameter of 0.5-30mm or short fibrous substances having the mean diameter of 0.1-5mm and length of 2-50mm are selected as the rubber chips. On the other hand, a road surface shape is partitioned in a fixed area, and an un-crosslinked material is flowed into the partitions, and crosslinked, and the upper section of the road surface is paved and worked with the material as a paving material. The rubber chips give elasticity and strength to the rubber mat, and charcoal takes charge of heat accumulation. Melted snow is flowed under the rubber mat or the paving material, thus preventing freezing due to a subsequent temperature drop.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow melting rubber mat and a snow melting pavement material for facilitating the melting of snow on a road surface.

[0002]

2. Description of the Related Art In the technology of melting snow accumulated on the road surface of a snow country, water or warm water is passed through a pipe buried along the road surface, and this is discharged through a hole formed in the pipe to melt the snow. Dust is being done. However, this is effective only on the road surface in which the pipe is buried, and this requires a very large amount of cost, and is not a technique capable of melting the snow easily regardless of the place.

On the other hand, there is a technique of laying a rubber mat for snow melting on a road surface. Well-known examples of this are:
It is a rubber mat with a heating element inside a rubber chip.
In some cases, a hot plate is included in the concrete. On the other hand, there is proposed a rubber mat for snow melting in which a heat storage material is mixed in a rubber chip and hardened.

[0004]

However, many heating elements are operated by passing electricity, and those having the heating element inside impose a large running cost burden on the electricity bill. Further, in order to install this on the road, the capital investment for electric wiring, power transmission line, etc. becomes large, and there are many failures such as disconnection, etc., and the cost for maintenance becomes large.

[0005]

The present invention relates to a new proposal of a snow melting technique in which a heat-storing material is mainly mixed in a rubber chip. The first of the invention is to make vulcanized rubber into a granular or short fiber shape. The present invention relates to a rubber mat for snow melting, characterized in that charcoal pulverized into granules is mixed into a processed rubber chip and integrated with a binder such as urethane.

A second aspect of the present invention is characterized in that a rubber chip obtained by processing a vulcanized rubber into a granular or short fiber shape is mixed with granular pulverized charcoal and integrated with a binder such as urethane. The present invention relates to a pavement material for snow melting which is laminated on a road surface.

According to these techniques, the rubber chips are granular materials having an average diameter of 0.5 to 30 mm or an average diameter of 0.1 to 5
mm, the length is 2 to 50 mm, and the average particle size of charcoal is 0.01 to 30 mm. The relationship is that charcoal mixed in is 10 to 100 parts by weight of rubber chips. 300 parts by weight is preferred.

[0008]

The present invention relates to a rubber mat for snow melting that facilitates melting of snow on a road surface, a pavement material for snow melting, and a rubber mat and pavement that facilitates removal of accumulated snow even if snow melting does not occur or snow does not easily freeze. This is related to the material, and because the heat storage material called charcoal is put in the rubber mat or the pavement material, the running cost is not incurred and the maintenance free is realized.

The rubber mat for snow melting is obtained by mixing rubber chips and charcoal and crosslinking them with a binder such as urethane to form a plate (thickness: 5 to 300 mm). An adhesive, an anchor bolt, etc. It will be fixed to the surface of the road surface using the stopper. On the other hand, as a paving material, the road surface is divided into a certain area, and the uncrosslinked material is poured into this division,
This will be bridged and paved on the road surface.

The rubber chip which is the base material of the present invention is usually a tire or an industrial rubber product which is processed into granules, which can be effectively used as a used tire. On the other hand, charcoal as a heat storage material is a material that is very environmentally friendly and inexpensive in cost because it is made by processing driftwood and thinned wood that gather in dams. Most of this charcoal itself is a car
It is made of bon (carbon) and is a material with excellent heat absorption, heat storage, and light absorption. Thus, it can be seen that the charcoal used as the heat storage material in the present invention is the best in terms of cost, performance and environment.

The rubber mat or pavement material in the present invention has appropriate voids in the substrate, and the voids ensure water permeability. Water permeability is an important factor required for today's pavement materials, and melted snow will flow under rubber mats or pavement materials and prevent freezing due to subsequent temperature reduction.

The charcoal to be mixed is preferably 10 to 300 parts by weight with respect to 100 parts by weight of the rubber chip which is the base material of the rubber mat or the pavement material, and the former amount is abrasion resistance,
It is determined in terms of durability, strength, etc. The latter amount is limited in terms of heat storage.

The average particle size of the rubber chips as the base material of the snow melting rubber mat and the snow melting road surface pavement material is preferably 0.
5 to 300 mm granular material or average diameter 0.1 to 5 mm,
It is a short fibrous material having a length of 2 to 50 mm, which imparts elasticity and strength to a rubber mat or the like, and is limited in terms of reducing vibration to a vehicle and further easily mixing with charcoal. The rubber chip actually used in the present invention is a chip made by scraping a waste rubber product. Therefore, although it has a granular material, it tends to be a fibrous material.

The average particle diameter of the charcoal embedded in the rubber chips of the snow melting rubber mat and the snow melting road surface pavement material is 0.01.
It is up to 30 mm, and there are many cases mainly obtained by hitting driftwood or thinned wood. Therefore, it includes powdery materials and fibrous materials. The binder is not particularly limited, and a resin-based binder is mainly used.

[0015]

The present invention will be described in more detail with reference to the following examples. (Examples 1 to 3) As Example 1, an average diameter of 1 to 2 mm,
50 parts by weight of rubber chips having a length of 5 to 10 mm were mixed with 50 parts by weight of charcoal having a particle size of 1 to 5 mm to prepare a rubber mat for snow melting having a thickness of 20 mm with 37.5 parts by weight of urethane binder. That is, the structure of the rubber mat for snow melting is
A rubber chip is used as a base material and granular charcoal is mixed therein, and this is hardened with a binder such as urethane. The rubber chips give elasticity and strength to the rubber mat, and the charcoal is responsible for heat storage. Then, these are integrated with a gap, and the gap ensures the water permeability. This water permeability is an important factor required for today's pavement materials, and the thawed snow that flows down prevents freezing due to the subsequent temperature drop.

Example 2 is a rubber mat for snow melting with 30 parts by weight of charcoal against 70 parts by weight of rubber chips.
Example 3 is a rubber mat containing 10 parts by weight of charcoal.
The mixing ratios of the base material and charcoal and the properties of the rubber mat in Examples 1 to 3 are as shown in Table 1.

(Comparative Example 1) The rubber mat of Comparative Example 1 contains no charcoal. The mixing ratios of the base material and charcoal and the properties of the rubber mat in Comparative Example 1 are also as shown in Table 1.

[0018]

[Table 1]

(Snow melting test) Next, in order to prove the snow melting effect, a snow melting execution test was conducted at the Togakushi substation of the Chubu Electric Power Company, Nagano Prefecture. -Test 1-The test date was February 21, 1995, the test conditions were fine weather, snowfall 0 cm, and snowfall 0 cm. The rubber mats of Examples 1 to 3 and Comparative Example 1 were laid on the concrete road surface. The temperatures of the rubber mat surface and the back surface in contact with the road surface were measured. The results are shown in Table 2.

[0020]

[Table 2]

-Test 2-The test date is February 22, 1995, and the test conditions are weather snow,
The snowfall was 31 cm, and the surface temperature and melting amount (cm) of the rubber mat were measured as in Test 1. The results are shown in Table 3.

[0022]

[Table 3]

[0023]

The following points have been clarified by the above test. A. Even if the outside air temperature is below zero, the rubber mat according to the present invention can only drop to zero. Further, even when the outside air temperature is extremely lowered (for example, -10 ° C), the temperature on the mat is only around 0 ° C. I. If the snow accumulates only a few centimeters, it will either melt immediately or the sun will come out and it will melt immediately. C. When a large amount of snow is suddenly piled up, the snow cannot be melted, but the temperature on the rubber mat is around 0 ° C., so it is very easy to shovel, and there is no residual snow or freezing of water after shoveling. D. Even in winter, if the sun comes out during the day, the temperature on the rubber mat will be 3
It becomes 0 degrees or more. E. In particular, if the weather was fine until the previous day, the temperature on the rubber mat will be kept above zero even if there is snow the next day, and the conditions for snow melting will be easily satisfied.

The snow-melting rubber mat or the snow-melting pavement material of the present invention is environmentally friendly, has a low cost (including running cost), and is expected to have a sufficient effect in terms of performance.

Continued Front Page (72) Inventor Junji Yoshimura 132-11 Denawa, Hiratsuka, Kanagawa

Claims (8)

[Claims] 1. A rubber mat for snow melting, characterized in that a rubber chip obtained by processing a vulcanized rubber into a granular shape or a short fiber shape is mixed with granularly pulverized charcoal and integrated with a binder such as urethane. 2. The rubber chip has an average diameter of 0.5 to 30 mm.
Granules or average diameter 0.1-5mm, length 2-50m
The rubber mat for snow melting according to claim 1, which is a short fibrous material of m. 3. The average particle size of charcoal is 0.01 to 30 mm.
The rubber mat for snow melting according to claim 1. 4. The rubber mat for snow melting according to claim 1, wherein 10 to 300 parts by weight of charcoal is mixed with 100 parts by weight of the rubber chip. 5. A snow melting to be laminated on a snow melting road surface, characterized in that a rubber chip obtained by processing a vulcanized rubber into a granular shape or a short fiber shape is mixed with granularly pulverized charcoal and integrated with a binder such as urethane. Paving material. 6. The rubber chip has an average diameter of 0.5 to 30 mm.
Granules or average diameter 0.1-5mm, length 2-50m
The rubber mat for snow melting according to claim 5, which is a short fibrous material of m. 7. The average particle size of charcoal is 0.01 to 30 mm.
The pavement material for snow melting according to claim 5. 8. The pavement material for snow melting according to claim 6, wherein 10 to 300 parts by weight of charcoal is mixed with 100 parts by weight of the rubber chips.