Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
  • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
  • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
  • E01F9/506—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
  • E01F9/518—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces formed in situ, e.g. by painting, by casting into the road surface or by deforming the road surface
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C17/00—Pavement lights, i.e. translucent constructions forming part of the surface

Definitions

• the technical solution concerns a method for applying photoluminescent markings on traffic routes in order to ensure safe driving on the lanes.
• a solution according to the PL 402969 known, a method for applying a photoluminescent coating and one formed in this way photoluminescent material.
• the process essentially consists of applying a resin layer to a base plate, onto which a powder is applied and applied to the base layer under a pressure of 3 to 8 bar.
• the above-described process of applying the resin base layer together with applying the powder under pressure is repeated.
• the layers thus formed are applied repeatedly and the photoluminescent powder is injected into the base layer using pressure.
• a thin layer of binder adhesive is applied to the final layer of photoluminescent powder before the top protective layer is applied.
• the disadvantage of the above solution is that it requires the application of pressure.
• the plate formed in this way like the plates formed by the above methods, must be cut or otherwise mechanically processed to obtain the final shape of the final product.
• the crystals are then damaged at the cut edge, but also eroded over time and eroded by moisture. This significantly reduces the luminosity of the crystals. This reduces the brightness of the product at the edges, and over time the edges of the product stop glowing altogether.
• a solution according to the PL41737 known, a method for producing photoluminescent plates for cutting consist of pouring a layer of low viscosity transparent resins covered with a layer of synthetic release waxes onto a flat plate. Then, using a stencil with a surface area smaller than the finished product, a layer of concentrated photoluminescent powders is formed. A glass mat is applied to the layer thus formed, which penetrates the entire surface of the plate with a transparent resin of low viscosity. The product thus obtained is further deaerated and covered with a final layer of white resin.
• the aforementioned disadvantages are eliminated by a method according to the invention for applying photoluminescent markings.
• the process essentially consists of making a hole in the surface of the traffic route at an ambient temperature of 1 - 80° C. Its floor is coated with white paint. This white layer of paint is sprinkled with a photoluminescent powder that adheres to it due to the stickiness of the white paint. The layers must dry together for at least 2 minutes. After drying, the hole is filled with the transparent layer, and the transparent layer is left to cure for 10 - 150 minutes.
• the floor is free of dust and/or moisture before applying the white coating. Furthermore, it is advisable that the depth of the hole is 1 to 100 mm.
• the transparent layer is treated as fast-curing.
• a method for applying a photoluminescent marking to a roadway according to the present invention includes forming a hole in the surface of the roadway at an ambient temperature of 1 - 80 ° C, preferably at an ambient temperature of 15 - 25 ° C.
• the temperature is Road surface up to 80° C depending on its heat absorption capacity.
• the hole is preferably drilled or milled into the conveyor path. This hole preferably has a diameter of 100 - 150 mm, but its dimensions are not limited.
• the shape of the hole is preferably circular, square or rectangular. But it is also possible to create a hole with any shape, for example a line shape.
• the resulting hole is free of dust or other residue after the destructive process. If cooling is used in the hole forming technology, it is necessary to dry the hole, in the example burners are used.
• the hole prepared in this way is painted white, preferably with white road marking paint, which dries quickly and is light-reflecting.
• the white paint is immediately covered with photoluminescent powder that appears like a light.
• the transparent layer is preferably a binder resin or a mixture thereof or a polyurethane mixture that is transparent and UV-stable.
• the photoluminescent powder consists of a metal oxide, in a preferred embodiment of Al 2 O 3 (corundum) oxide + strontium + europium + dysprosium + cobalt.
• the individual elements are sintered together at temperatures of over 1000°C.
• the resulting block is then crushed and ground into a powder with different grain sizes in order to obtain the maximum luminosity of the photoluminescent powder.
• the photoluminescent powder with the largest possible grain size is used because the degree of luminosity is directly proportional to the grain crystal size.
• the grain crystal size is between 50 ⁇ m and 650 ⁇ m. When using blue-luminous crystals, the grain size is preferably 50 ⁇ m. For yellow-green crystals, the grain size is preferably between 150 - 200 ⁇ m.
• the depth of the hole is preferably 1 to 100 mm, preferably 5 mm. This ensures maximum luminosity of the photoluminescent powder from the hole.
• the procedure for applying photoluminescent markings to the road is carried out by a worker. He mills e.g. B. makes a hole with a milling machine, then vacuums or blows away the dust. He paints the bottom of the hole with white paint, which is then sprinkled with photoluminescent powder. Then he pours a transparent layer over the holes, followed by the necessary curing of the transparent layer. He uses this process 10 - 1000 times in a row, depending on his needs, to produce a series of the desired road markings.
• Another way to apply photoluminescent markings to a roadway is for a worker to make a series of multiple holes, such as: B. 100 holes, prepared. Then he coats the floor one after the other with white paint, which is sprinkled with photoluminescent powder. At the end they will Holes coated with a transparent layer, followed by the necessary curing of the transparent layer.
• Another possible method for applying photoluminescent markings on a road is for several workers to first drill several holes in an appropriate time sequence, for example 100 holes in a row. The next worker in line vacuums the series of holes. Then the next worker in line coats the bottom of the hole with white paint, which he then sprinkles with photoluminescent powder. The next worker in turn then coats the hole with a transparent layer, followed by the necessary curing of the transparent layer.
• Automation consists in the fact that a special vehicle, e.g. B. a normal delivery van with a modified floor is used. Automation consists of the use of a special vehicle, e.g. B. a standard delivery truck with a modified floor that drives along the marked traffic route and automatically measures the required locations for applying the markings.
• a special vehicle e.g. B. a normal delivery van with a modified floor
• Automation consists of the use of a special vehicle, e.g. B. a standard delivery truck with a modified floor that drives along the marked traffic route and automatically measures the required locations for applying the markings.
• the advantage of using a van is the ability to perform the method in almost any weather.
• a method for applying photoluminescent markings according to the present invention enables efficient and economical implementation of markings on traffic routes in order to ensure safe driving on the lanes and at the same time to ensure long-lasting luminosity and thus safe traffic flow on the roads.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Road Signs Or Road Markings (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

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Citations (8)

Family Cites Families (4)

• 2022
  • 2022-05-10 CZ CZ2023-7A patent/CZ309598B6/cs unknown
• 2023
  • 2023-05-08 EP EP23171978.2A patent/EP4276245A1/fr active Pending

Patent Citations (8)

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