JPH06104964B2 - Light reflective non-slip pavement - Google Patents

Description

The present invention relates to a non-slip pavement having excellent light reflectivity.

More specifically, it relates to a pavement having a rough surface with a large number of silicon carbide particles and having excellent light-reflecting and non-slip properties.

Non-slip pavement is widely used in places where slip accidents are likely to occur in order to prevent traffic accidents. In addition, non-slip pavements are used everywhere to prevent slip accidents in the rain even on people's walkways. At the construction site, non-slip pavement is also applied on the steel sheet covering. Furthermore, it is also carried out on the premises for construction work, aisles such as workshops, floors, etc. Furthermore, on ships, non-slip pavement is used on decks and roads.

There are various types of these non-slip pavements,
For a relatively thin layer, use a reactive binder such as epoxy resin, polyurethane resin, bitumen-modified epoxy resin, bituminous-denatured polyurethane resin, polyester resin, or methacrylate resin, or a bitumen-based mixture material, A hard aggregate such as emery, ceramic grains, silica sand, crushed stone or the like or a coloring material of these is bonded to the base to roughen the surface. These non-slip pavements are
It has a non-slip function and a function that adds a color effect due to coloring, but does not have a light-reflecting function.
In addition, there are white and light-colored aggregates such as Shinopal (trade name, limestone artificial aggregate), and there are aggregates with better light reflection than crushed stone such as ordinary limestone, but when actually used In addition, it has the drawback that its light reflectivity is not sufficient and its abrasion resistance is not sufficient. As a material having light reflectivity, there is a glass peas mixed with traffic paint used for road marking, but it is unsuitable as a non-slip aggregate.

That is, the conventional non-slip pavement has not yet been developed with excellent light-reflecting properties and anti-slip properties.

The present invention provides a non-slip pavement excellent in light reflectivity and anti-slip property.

According to the present invention, a binder layer is provided on a substrate with a binder selected from a resin binder or a bituminous binder, and a large number of silicon carbide grains are partially contained in the binder layer with respect to the binder layer. The structure of a light-reflecting non-slip pavement characterized in that a rough surface is formed by a large number of silicon carbide grains by arranging so that the other portions are left embedded in the binder layer and embedded in the binder layer. Is the gist.

The light-reflecting non-slip pavement of the present invention will be described with reference to the illustrated embodiments.

1 and 2 are sectional views of a pavement structure showing one embodiment of the light-reflecting non-slip pavement of the present invention.

In the figure, (1) is a base, which is a base on which the non-slip pavement of the present invention is applied. For example, when a light-reflecting non-slip pavement is constructed on an existing bituminous pavement, concrete pavement, etc., the existing bituminous pavement, concrete pavement, etc. are the base. When constructing a light-reflecting non-slip pavement on a steel sheet, the steel sheet serves as a base. When constructing a light-reflecting non-slip pavement on the floor plate of a pedestrian bridge, the floor slab becomes the foundation. Also, when constructing a light-reflecting non-slip pavement on a passage or floor in a yard such as a factory, the passage, floor, etc. are the foundation. When constructing a light-reflecting non-slip pavement on the deck of a ship or the floor of a passage, the deck and the deck of the passage form the basis.

Reference numeral (2) is a bonding material layer, which is bonded directly onto the substrate (2) or through an appropriate adhesive layer (3) such as a prime coat or a tack coat.

As the binder forming the binder layer (2), there is a resin binder or a bituminous binder. A filler, a pigment, an aggregate or the like may be mixed with these binders and used.

As the resin-based binder, for example, a reactive binder such as an epoxy resin, a polyurethane resin, a bitumen-modified epoxy resin, a bitumen-modified polyurethane resin, a polyester resin, or a methacrylate resin can be used. In addition, polyurethane-modified acrylate resin, polyacrylate resin and the like can also be used. Also, paints composed of these resins, paints such as styrene / butadiene copolymer resins, alkyd resins (modified with melamine resin or phenol resin), and paints containing synthetic rubber and synthetic resin as main components. Etc. can also be used. In addition, a thermoplastic resin-based binder can also be used.

On the other hand, as the bituminous binder, a bituminous emulsion, a latex bituminous emulsion in which a rubber latex or a polymer latex is mixed, a bituminous emulsion modified with a rubber or a polymer,
A cutback type bituminous product, a cutback type bituminous product modified with rubber or a high molecular polymer, a bituminous product in which a rubber, a high molecular polymer or the like is mixed can be used.

These binders include those suitable for normal temperature construction, those suitable for heating construction, those suitable for normal temperature construction or heating construction, and the like.

(4) is silicon carbide particles, and after a large number of silicon carbide particles (4) (4) ... Are evenly dispersed on the upper surface of the binder layer (2), By rolling the silicon carbide particles (4) (4) ... on the surface of the binder layer (2).
・ A part of is exposed so as to expose the face, and the other part is embedded and bonded in the binder layer (2), and the surface of the binder layer (2) is covered with a large number of silicon carbide. Grain (4) (4)
······ It is roughened by. The silicon carbide grains (4) can be mixed even in the binder layer (2) as shown in FIG.

The silicon carbide particles (4) used in the present invention are black particles containing ceramic silicon carbide as a main component and are used as an abrasive, a raw material of a refractory or the like. Usually, from particles with a particle size of 3 to 1 mm to finer particles,
Several products are commercially available, distinguished by particle size. These silicon carbide particles (4) are excellent in strength, hardness, heat resistance, fire resistance, chemical stability, wear resistance and the like.
It has a Mohs hardness of about 9.5, which is much harder than emery and silica sand, and has excellent wear resistance.
Further, it has excellent light reflectivity, and has a property of reflecting when irradiated with light on the silicon carbide particles (4) and shining. In order to utilize this light reflectivity, it is preferable to use one having a relatively large particle size. Usually with a particle size of 0.2 mm or more, preferably 0.5 mm
Use the above.

The light-reflecting non-slip pavement of the present invention can be constructed by a conventionally known method.

For example, an adhesive layer (3) such as a prime coat or a tack coat may be applied directly or on the substrate (1) to improve the adhesiveness, and then the required amount of the binder may be evenly applied. The binder layer (2) is evenly laid by various methods to form the binder layer (2). In the meantime, the required amount of silicon carbide particles (4) is evenly distributed on the upper surface of the binder layer (2), and the silicon carbide particles (4) (4) ... ... is embedded in the binder layer (2). When the binder exerts a sufficient bonding force by reaction, cooling, volatilization, decomposition, etc. and hardens or solidifies, a large number of silicon carbide particles (4) (4)
A light-reflecting non-slip pavement having a rough surface is formed. Aggregates, pigments, fillers, and the like can be mixed in the above binder.

Further, silicon carbide particles (4), (4), ... Are added to the binder alone or in an appropriate combination with aggregates, pigments, fillers, etc. to prepare a binder mixture, and the binder mixture is prepared. The base material (1) or the base material (1) is coated with an adhesive layer (3) such as a prime coat or a tack coat, and then spread to a uniform thickness, which is then bonded (2). After spraying the silicon carbide particles (4) (4) ... on its surface, the silicon carbide particles (4) (4) ..
The base part of ... is embedded in the binder layer (2), and its surface is roughened by a large number of silicon carbide grains (4) (4). The binder can be hardened or solidified to form the light reflective non-slip pavement of the present invention. In the above, the binder may be a one-component type or a two-component type. Further, there are those which are constructed at room temperature and those which are constructed by heating. Also silicon carbide grains (4)
(4) ..., the spraying at room temperature, or the spraying after heating. The heat spraying can be applied as necessary because it can help the binder to harden and solidify to improve the adhesiveness when it is applied at a low temperature such as in winter.

As described above, the light-reflecting non-slip pavement of the present invention has a large number of silicon carbide grains (4) (4) ... on the base (1).
The binding material layer (2) having a roughened surface is joined and integrated by.

Therefore, when daylight sun rays hit the pavement surface, the light is reflected by the large number of silicon carbide particles (4) (4), etc., which are exposed on the surface, and the surface of the pavement shines. When the pavement of the present invention was constructed on a road and actually measured, it seemed as if glass fragments were apparently scattered at a point 40 to 50 m before. Also, at night, the headlights of the car had the same effect. Because of its good light-reflecting property, when this is installed on the road surface, the driver notices this existence long before the vehicle runs on the road surface and psychologically drives safely. In addition, the road surface becomes brighter, which facilitates driving. In addition, the road surface has excellent anti-slip properties, which makes driving safer and has a great effect of preventing traffic accidents. Furthermore, because the road surface is illuminated by street lights, sunlight, etc., the road surface becomes brighter and the lighting effect is improved.
It has real benefits.

Next, the present invention will be described with reference to examples.

Example 1 An existing asphalt pavement surface was uniformly sprayed with a room temperature curable two-component asphalt epoxy resin (Colcut R, Nisshin Chemical Industry Co., Ltd., trade name) at a rate of 150 kg per 100 m ² , and then on top of it. Disperse and evenly spread 700kg of densic silicon carbide particles (produced by Showa Denko, trade name) (particle size 3-1 mm).

Then, it was lightly compacted to cure the call cut R to form a light-reflecting non-slip pavement.

After the Colecut R was cured, it was opened for traffic, but it has excellent anti-slip properties, and in this pavement, the silicon carbide particles exposed on the surface of the pavement shine well due to irregular reflection by the sun's rays. At first glance, the glass pieces seemed to scatter, and even at night, the car headlights had the same effect.

Example 2 An existing asphalt pavement surface was uniformly spread with a binder mixture in which 20 parts by weight of a two-component epoxy resin colored with a valve pattern and 80 parts by weight of silicon carbide particles were evenly spread to a thickness of about 5 mm. Then, about 5 kg / m ² of silicon carbide particles were sprayed on this and lightly compacted, and the epoxy resin was cured to form the light-reflecting non-slip pavement of the present invention.

[Brief description of drawings]

1 and 2 are sectional views of the pavement structure showing an embodiment of the light-reflecting non-slip pavement of the present invention. In the figure, (1) is a substrate, (2) is a binder layer, and (3)
Is an adhesive layer, and (4) is a silicon carbide grain.

Claims (1)

[Claims] 1. A binder layer is provided on a substrate with a binder selected from a resin binder or a bituminous binder, and a large number of silicon carbide grains are partially bonded to the binder layer. A light-reflecting non-slip pavement, characterized in that a rough surface is formed by a large number of silicon carbide grains by arranging so that the remaining portion of the layer is embedded in the binder layer and the other portions are embedded.