JP2005220531A - Side strip and formation method of side strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side strip capable of making a pedestrian pass without having a sense of incompatibility and ensuring the prevention of falling down and the safety of the pedestrian. <P>SOLUTION: A first resin layer is formed on the paving surface of a road, a molten resin layer is formed of a thermoplastic resin on the surface of the first resin layer, a ceramic having a grain size not larger than 2 mm and preferably 0.15 to 0.5 mm is sprinkled on the surface of the molten resin layer to mix the ceramic with the molten resin layer, the molten resin layer mixed with the ceramic is cooled/hardened to form a second resin layer, and unevenness is formed on the surface of the second resin layer by the ceramic. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a roadside belt and a method for forming a roadside belt that are excellent in passing pedestrians, preventing falls, and preventing injury during a fall.

  As roadside belts (sidewalks) provided on the paved surface of roads paved with asphalt or cement, which are distinguished from roadways by white lines etc., roadside belts laid by mixing aggregates with binders such as polymer resins is there. For example, after mixing large diameter aggregate (2.5-20mm) and small diameter aggregate (0.074-0.6mm) with polymer resin such as epoxy resin, laying on pavement surface and finishing with iron etc. The roadside belts (sidewalks) and roadways are said to be excellent in water permeability because a small diameter aggregate is bonded with an epoxy resin around a large diameter aggregate (Patent Document 1).

Also, after mixing aggregates made of colored glass and fluorescent colored glass with particle sizes of 2 to 10 mm with epoxy resin, roadside belts (sidewalks) and roadways laid on pavement surfaces and finished with trowels etc. It is said to be excellent in water permeability, corrosion resistance, decorativeness, and safety (safety by visually calling attention using light emission of ultraviolet light of the fluorescent colored glass) (Patent Document 2).
JP-A 63-268803 JP-A-7-90805

  However, these conventional techniques increase the frictional resistance of the road surface by preventing the vehicle from slipping, maintain the water permeability, and mix the aggregates having a relatively large particle size (2 to 20 mm). This technology is applied to both roadside belts and roadways for the purpose of making it easier for the driver to see the road conditions by reflected light and fluorescence from the light. For this reason, pedestrians who walk (walk, run, etc.) on roadside belts with large particle size aggregates exposed on their surfaces may feel uncomfortable, and the frictional resistance suitable for preventing vehicle slippage is slid by pedestrians. In other words, the roadside belt containing glass aggregate is not suitable for ensuring the safety of a fallen pedestrian.

  The present invention has been made to solve the above-described problems, and allows pedestrians to pass without a sense of incongruity, is excellent in preventing pedestrians from falling, and ensures pedestrian safety even when pedestrians fall. It is an object of the present invention to provide a roadside belt and a method for forming the same.

  In order to achieve the above object, in the present invention, a first resin layer formed on a paved surface of a road, and a second resin layer formed of a thermoplastic resin and ceramics on the surface of the first resin layer. The second resin layer is formed by applying the thermoplastic resin in a molten state on the surface of the first resin layer, and the molten resin layer. There is provided a roadside belt formed by adhering and curing the ceramic having a particle diameter of 2 mm or less dispersed on the surface of the resin layer and mixed in the molten resin layer.

  The roadside belt includes a first step of forming a first resin layer on a paved surface of a road, a second step of forming a molten resin layer on the surface of the first resin layer, and the molten resin. A third step of mixing the ceramic soot into the molten resin layer by spraying ceramics having a particle size of 2 mm or less on the surface of the layer, and a fourth step of cooling and hardening the molten resin layer mixed with the ceramic soot. (Step 4).

The roadside belt formed in this way has an uneven surface made of ceramics with a particle size of 2 mm or less on its surface and has a frictional resistance excellent in preventing a pedestrian from falling, and is mixed with an aggregate with a particle size of 2 to 20 mm Since the unevenness of the surface is smaller than the roadside belt formed in this way, even if the pedestrian passes, there is no sense of incongruity, and the safety of the pedestrian can be ensured even when the pedestrian falls.
Furthermore, by providing a plurality of grooves parallel to each other on the surface portion of the second resin layer, a pedestrian can be more effectively prevented from falling.

  The roadside belt having a plurality of parallel grooves (Claim 3) includes a first step of forming a first resin layer on a paved surface of a road, and a molten resin on the surface of the first resin layer. A second step of forming a layer, a third step of mixing the ceramic soot into the molten resin layer by spraying ceramics having a particle size of 2 mm or less on the surface of the molten resin layer, and the ceramic soot being mixed. A fourth step of forming a plurality of parallel grooves in the surface portion of the molten resin layer, and a fifth step of cooling and curing the molten resin layer in which the plurality of parallel grooves are formed. (Claim 5).

  By setting the particle size of the ceramics to 0.15 to 0.5 mm, the road side belt surface has a frictional resistance of 77 to 90 BPN, and further excellent for pedestrian traffic, fall prevention, and safety at the time of fall. It can be a side band (Claim 2). Such a roadside band is formed by setting the ceramic particle size mixed in the molten resin layer to 0.15 to 0.5 mm.

  As described above, according to the roadside band and the method for forming the roadside band according to the present invention, the surface of the roadside band is made of ceramics having a small particle size of 2 mm or less, preferably 0.15 to 0.5 m, not including glass. As the surface of the roadside belt is excellent in preventing the pedestrian from falling, the safety of the pedestrian is ensured even when the pedestrian falls. be able to.

Hereinafter, a roadside band and a method for forming a roadside band according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional configuration diagram showing a state of forming a road-side zone 01 which is an embodiment of the road-side zone according to the present invention, and FIG. 2 is a schematic cross-sectional configuration diagram of the road-side zone 01. Here, the roadside band 01 is formed as follows.
After removing mud, dust, etc. adhering to the surface of the road pavement layer 10 formed of asphalt or concrete (road pavement surface, hereinafter referred to simply as “paved surface”) 10a, An adhesive called a primer is applied to the surface of the dried pavement surface 10a to a thickness of, for example, 8 to 10 μm (micrometer) using a primer spreader or a roller. The primer thus applied is dried and cured to form the first resin layer 11 on the pavement surface 10a as shown in FIG. Here, the first resin layer 11 is interposed between the pavement layer 10 and a second resin layer 13 which will be described later, and prevents the second resin layer 13 from peeling from the pavement layer 10. It has an action of smoothly applying (described later) a thermoplastic resin melted on the surface 11a of one resin layer 11.

In addition, a primer mixes two liquids, and a 1 liquid thing which does not require mixing exists, and a construction process can be shortened by using a 1 liquid thing. Examples of such primers include trade names “No. 1 primer” and “No. 3 primer” manufactured by Atomics Co., Ltd. (both are one solution).
The second resin layer 13 is formed as follows. The thermoplastic resin forming the second resin layer 13 (for example, a trade name “Atom Line” manufactured by Atomix Co., Ltd.) is a melt material applicator (not shown) such as a trade name “Atom Center Liner manufactured by Atomix Co., Ltd.”. CL-15G series ") or the like is heated and melted at 160 to 180 degrees Celsius, and is sufficiently stirred, for example, on the surface 11a of the first resin layer 11, such as 1.7 to 2. It is applied with a thickness of 5 mm to form a molten resin layer 12 (see FIG. 1B).

  Next, when ceramics (silica sand) 14 having a particle diameter of 2 mm or less, preferably 0.15 to 0.5 mm is sprayed from above the molten resin layer 12 with an aggregate spraying machine or a scoop (not shown), the ceramics 14 Is settled from the surface 12a of the molten resin layer 12 to the inside due to the action of gravity and mixed into the upper portion of the molten resin layer 12, and a part of the ceramic 14 is exposed from the surface 12a of the molten resin layer 12. . Eventually, the molten resin layer 12 is naturally cooled and cured to form the second resin layer 13, but as shown in FIG. 2, the surface of the second resin layer 13 on which the ceramics 14 are exposed (hereinafter referred to as “the second resin layer 13”). , Labeled “roadside belt surface 13a”). FIG. 3 is an enlarged cross-sectional view of the second resin layer 13 in the vicinity of the roadside belt surface 13a. The particle size of the roadside belt surface 13a bonded with a thermoplastic resin (binder) is 2 mm or less, preferably 0.15. Concavities and convexities are formed by the ceramic 14 having a thickness of ˜0.5 mm.

When the ceramic 14 having a particle size of 0.15 to 0.5 mm is used, the roadside belt surface 13a formed as described above is in a dry state (for example, in a fine weather state) to a wet state (for example, in the case of rainy weather). It was confirmed by experiments that the frictional resistance is 77 to 90 BPN value suitable for pedestrian traffic.
That is, the roadside belt surface 13a has no irregularities due to the aggregate having a large particle diameter of 2 to 20 mm unlike the conventional roadside belt, so that the pedestrian can pass the roadside belt 01 without a sense of incongruity. Excellent for preventing pedestrians from falling. The roadside band 01 does not have glass as an aggregate, and the unevenness of the roadside band surface 13a made of ceramics having a particle size of 2 mm or less, preferably 0.15 to 0.5 mm is fine. Even if it falls, the aggregate exposed on the roadside belt surface 13a will not be scratched or cut. As described above, the roadside belt 01 is excellent for passage of pedestrians, prevention of falls, and ensuring the safety of fallen pedestrians.

Next, modified examples of the roadside belt according to the present invention will be described with reference to FIGS. In the description of this modification, components having the same functions as those of the roadside band 01 shown in FIGS.
FIG. 4 is a schematic configuration diagram of a cross-section of the roadside band 02 according to the modified example. The roadside band 02 is formed by forming grooves parallel to the surface portion of the second resin layer 13 in the roadside band 01, and is formed as follows.

  As described above, the grooving shown in FIG. 5 is applied to the surface 12a of the molten resin layer 12 which begins to harden after the ceramics 14 having a particle size of 2 mm or less, preferably 0.15 to 0.5 mm, is dispersed on the molten resin layer 12. A plurality of grooves parallel to each other in the surface portion of the molten resin layer 12 are formed by pressing the comb teeth portion 21 of the forming metal fitting (for example, a stainless steel plate having a thickness of 2.5 mm) 20 and moving the surface 12a of the molten resin layer 12 in parallel. Form. After the molten resin layer 12 is cooled and hardened, the grooves thus formed are formed with parallel grooves 15 in the surface portion of the second resin layer, as shown in FIGS. 4 and 6, to prevent the pedestrian from falling. Is more effective.

  As shown in FIG. 5, the comb tooth portion 21 of the grooving metal fitting 20 has, for example, a rectangular uneven comb tooth, and the width of the convex portion 21 a of the comb tooth is 4 to 8 mm. The width of the concave portion 21b is 4 mm, and the comb-shaped convex portion 21a and the comb-shaped concave portion 21b have a step D of 0.8 mm. Accordingly, the parallel grooves 15 formed on the surface portion of the molten resin layer 12 are formed according to the unevenness of the comb teeth portion (the width of the parallel grooves 15 is 4 to 8 mm, which is the width of the convex portion 21a of the comb teeth). The depth of the parallel groove 15 is formed corresponding to the step D (0.8 mm), and the width of the roadside belt surface 13a formed between the two parallel grooves 15 is the comb-shaped recess 21b. It is formed corresponding to the width of 4 mm). Here, although it is generally preferable to form the parallel grooves 15 in a direction parallel to the traveling direction of the pedestrian, the parallel grooves 15 are not limited to such a direction.

  In addition, if a chromatic color (for example, yellow, green, brown, blue, etc.) ceramics is used, a roadside zone rich in color can be realized. Further, the roadside belt according to the present invention is not limited to the above-described embodiment, and includes, for example, a roadside belt that is distinguished from the roadway and provided with a step, and is modified without departing from the spirit thereof. Can be implemented.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram of the cross section in one Example of the roadside belt | band | zone concerning this invention, (a) is a cross section of the 1st resin layer formed on the pavement surface of a road, (b) is a 1st resin layer. A cross section when a molten resin layer is further formed on the top is shown. It is a schematic structure figure of the section in one example of the roadside belt concerning the present invention. FIG. 3 is an enlarged cross-sectional view of the vicinity of the surface (second resin layer surface) of the roadside belt shown in FIG. 2. It is a schematic block diagram of the cross section in the modification of the roadside belt | band | zone concerning this invention. It is a figure which illustrates the external shape of the grooving formation metal fitting for forming the parallel groove | channel of the roadside belt | band | zone surface part shown in FIG. It is a perspective view of the roadside belt | band | zone shown in FIG.

Explanation of symbols

01,02 Roadside belt 10 Pavement layer 10a Pavement surface 11 First resin layer 11a Surface of first resin layer 12 Molten resin layer 12a Surface of molten resin layer 13 Second resin layer 13a Roadside belt surface 14 Ceramic 15 Parallel groove

Claims (6)

In a roadside belt having a first resin layer formed on a paved surface of a road and a second resin layer formed of a thermoplastic resin and ceramics on the surface of the first resin layer,
The second resin layer includes a molten resin layer formed by applying the thermoplastic resin in a molten state on the surface of the first resin layer, and the molten resin layer sprayed on the surface of the molten resin layer. A roadside band characterized by being bonded and cured with a ceramic having a particle diameter of 2 mm or less mixed in a resin layer.   2. The roadside belt according to claim 1, wherein the ceramic has a particle size of 0.15 to 0.5 mm, and the surface of the second resin layer has a frictional resistance of 77 to 90 BPN.   The roadside belt according to claim 1 or 2, wherein the second resin layer includes a plurality of grooves parallel to each other on a surface portion thereof. A first step of forming a first resin layer on a road pavement;
A second step of forming a molten resin layer on the surface of the first resin layer;
A third step of mixing the ceramic soot into the molten resin layer by dispersing ceramics having a particle size of 2 mm or less on the surface of the molten resin layer;
And a fourth step of cooling and curing the molten resin layer mixed with the ceramic soot. A first step of forming a first resin layer on the paved surface of the road;
A second step of forming a molten resin layer on the surface of the first resin layer;
A third step of mixing the ceramic soot into the molten resin layer by dispersing ceramics having a particle size of 2 mm or less on the surface of the molten resin layer;
A fourth step of forming a plurality of grooves parallel to each other in the surface portion of the molten resin layer mixed with the ceramic soot;
And a fifth step of cooling and curing the molten resin layer in which the plurality of grooves parallel to each other are formed.   The method for forming a roadside band according to claim 4 or 5, wherein the ceramic has a particle size of 0.15 to 0.5 mm.

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