Directional self-luminous pavement and preparation method thereof

Abstract

The invention discloses a directional self-luminous pavement and a preparation method thereof, and relates to the technical field of road safety and guidance. The directional self-luminous pavement comprises the following components in parts by weight: 9-11 parts of epoxy resin modified asphalt, 5-7 parts of a transparent polymer binder, 3-5 parts of a fluorescent material, 1-2 parts of a cement-based binder, 1-2 parts of an unsaturated polyester resin adhesive, 80-90 parts of aggregate, 1-2 parts of ethanol and 1-2 parts of epichlorohydrin. The invention also provides a preparation method of the directional self-luminous pavement, the directional fluorescent pavement has excellent luminous capability and anti-skid performance, the durability of the pavement is improved, and the temperature of the pavement is reduced; the problem that the vehicle visual identification sensor is difficult to obtain accurate road surface information due to poor light conditions and low environment identification degree is effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of road safety and guidance technology, and in particular to a directional self-luminous road surface and a preparation method thereof. Background Art

[0002] By the end of 2023, the mileage of highways in Yunnan Province will reach 329,000 kilometers, of which the mileage of expressways will reach 10,466 kilometers and the mileage of ordinary roads will reach 318,000 kilometers, and the construction of transportation infrastructure will have made great strides. However, Yunnan's unique geographical location means that its transportation construction faces many severe challenges. Yunnan is located on a plateau with large terrain undulations. Under these geographical conditions, the road conditions in the province are complex and changeable, and a large number of roads meander through mountainous areas. Moreover, due to their relatively small traffic volume, most mountain roads have deficiencies in infrastructure configuration and are not equipped with streetlight facilities. This situation has led to a significant increase in the safety risks of driving on mountain roads at night or in low-visibility environments. Traffic accidents such as falling off cliffs due to poor visibility often occur. Therefore, the present invention shows its significant application value. The present invention is a directional self-luminous pavement that can efficiently absorb energy such as solar energy during the day and stably store the absorbed energy through a specific energy conversion and storage mechanism. At night, the product will automatically illuminate in the direction of the road. The light emitted can form a clear guidance sign, providing clear driving route guidance for passing vehicles, effectively reducing the risk of traffic accidents caused by unclear vision.

[0003] The development of intelligent transportation is currently being vigorously advocated and supported. Within this system, single-vehicle intelligence, a key development direction, primarily relies on the vehicle's visual recognition sensors to achieve autonomous driving. However, in mountainous areas without streetlights, poor lighting conditions and low environmental recognition make it difficult for the vehicle's visual recognition sensors to obtain accurate and clear road information, significantly hindering the implementation of autonomous driving. Summary of the Invention

[0004] In response to the above-mentioned deficiencies in the prior art, the present invention provides a directional self-luminous pavement. This directional fluorescent pavement has excellent luminous ability and anti-skid performance, improves the durability of the pavement, reduces the temperature of the pavement, and effectively solves the problem that vehicle visual recognition sensors have difficulty in obtaining accurate road surface information due to poor lighting conditions and low environmental recognition.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve its technical problem is: to provide a directional self-luminous pavement, comprising the following components by weight: 9-11 parts of epoxy resin modified asphalt, 5-7 parts of transparent polymer binder, 3-5 parts of fluorescent material, 1-2 parts of cement-based adhesive, 1-2 parts of unsaturated polyester resin adhesive, 80-90 parts of aggregate, 1-2 parts of ethanol and 1-2 parts of epichlorohydrin.

[0006] Furthermore, the above-mentioned directional self-luminous pavement includes the following components by weight: 10 parts of epoxy resin modified asphalt, 6 parts of transparent polymer binder, 4 parts of fluorescent material, 1 part of cement-based adhesive, 1 part of unsaturated polyester resin adhesive, 85 parts of aggregate, 1 part of ethanol and 1 part of epichlorohydrin.

[0007] Furthermore, the epoxy resin modified asphalt includes the following components in parts by weight: 14-16 parts of SBS modified asphalt, 6-8 parts of epoxy resin and 4-6 parts of ethylenediamine.

[0008] Furthermore, the epoxy resin modified asphalt includes the following components in parts by weight: 15 parts of SBS modified asphalt, 7 parts of epoxy resin and 5 parts of ethylenediamine.

[0009] Furthermore, the technical indicators of epoxy resin modified asphalt binder are shown in Table 1.

[0010] Table 1 Technical indicators of epoxy resin modified asphalt binder

[0011] Furthermore, the transparent polymer adhesive includes the following components in parts by weight: 51-49 parts of epoxy resin and 24-26 parts of polyetheramine.

[0012] Furthermore, the transparent polymer adhesive includes the following components in parts by weight: 50 parts of epoxy resin and 25 parts of polyetheramine.

[0013] Furthermore, the fluorescent material includes the following components in parts by weight: 44-46 parts of plant fiber, 21-23 parts of strontium carbonate, 9-11 parts of rare earth europium oxide, 9-11 parts of rare earth dysprosium oxide, 2-4 parts of starch, 1-2 parts of o-phenanthroline, 1-2 parts of polypropylene, 9-11 parts of bisphenol A epoxy resin and 7-9 parts of epichlorohydrin.

[0014] Furthermore, the fluorescent material includes the following components in parts by weight: 45 parts of plant fiber, 22 parts of strontium carbonate, 10 parts of rare earth europium oxide, 10 parts of rare earth dysprosium oxide, 3 parts of starch, 1 part of o-phenanthroline, 1 part of polypropylene, 10 parts of bisphenol A epoxy resin and 8 parts of epichlorohydrin.

[0015] The beneficial effect of adopting the above further solution is that the plant fibers can increase the durability and wear resistance of the fluorescent material.

[0016] Furthermore, the fluorescent material is prepared by the following method: The first step is to crush the plant fiber and treat it at 10,000-15,000 r / min for 5-10 minutes to obtain fiber particles of 100-200 mesh. The fiber particles are then immersed in a 5-10wt.% sodium hydroxide solution and stirred at 40-60°C for 1-2 hours. The fiber particles are filtered and rinsed until neutral. The fiber particles are then added to a transparent liquid that is easily coagulated at room temperature and stirred at 80-100°C to obtain a fiber solution with a mass fraction of 5-10wt.%. Epichlorohydrin and starch are added and the mixture is stirred at 60-80°C for 2-3 hours to obtain a fiber-containing sol. Step 2: Dissolve strontium carbonate, rare earth europium oxide, and rare earth dysprosium oxide in deionized water, add o-phenanthroline and polypropylene, and stir for 1-2 hours to obtain a solution containing the luminescent center; Step 3: Add the solution containing the luminescent center obtained in the second step dropwise to the fiber-containing sol obtained in the first step and stir evenly. Then, add ammonia water to adjust the pH value to 7-9 and continue the reaction for 10-15 minutes to obtain a fiber solution containing the luminescent center. Step 4: The fiber solution containing the luminescent center obtained in step 3 is extruded into a coagulation bath through a spinneret with an aperture of 0.1-0.3 mm, and after solidification and forming, the solution is crushed to obtain a fluorescent material.

[0017] Furthermore, the cement-based adhesive includes the following components in parts by weight: 39-41 parts of cement, 34-36 parts of fine aggregate, 0.4-0.6 parts of cellulose ether and 9-11 parts of dispersed latex.

[0018] Furthermore, the cement-based adhesive includes the following components in parts by weight: 40 parts of cement, 35 parts of fine aggregate, 0.5 parts of cellulose ether and 10 parts of dispersed latex.

[0019] Furthermore, the unsaturated polyester resin adhesive includes the following components in parts by weight: 39-41 parts of unsaturated polyester resin, 2-4 parts of methyl ethyl ketone peroxide, 1-2 parts of dimethylaniline and 59-61 parts of calcium carbonate.

[0020] Furthermore, the unsaturated polyester resin adhesive includes the following components in parts by weight: 40 parts of unsaturated polyester resin, 3 parts of methyl ethyl ketone peroxide, 1 part of dimethylaniline and 60 parts of calcium carbonate.

[0021] Furthermore, the aggregate includes the following components in parts by weight: 40-55 parts of 2-4 mm aggregate and 40-45 parts of 1-2 mm aggregate.

[0022] Furthermore, the aggregate is basalt aggregate.

[0023] The method for preparing the above-mentioned directional self-luminous pavement comprises the following steps: S1. Mix epoxy resin modified asphalt and cement-based adhesive and apply the mixture on a construction cloth. Then, place aggregate on the construction cloth, compact it, let it stand, and remove excess aggregate. S2. After mixing the transparent polymer binder and the fluorescent material, add unsaturated polyester resin adhesive, ethanol and epichlorohydrin, mix well and apply it on the upper layer of the aggregate, and leave a groove on the surface. After standing, a directional self-luminous pavement is obtained.

[0024] Furthermore, in step S1, the mixture is allowed to stand for 23-25 ​​hours.

[0025] Furthermore, in step S1, the mixture is allowed to stand for 24 hours.

[0026] Furthermore, in step S1, the specification of the construction cloth is 0.3-0.5m*0.3-0.5m.

[0027] Furthermore, in step S1, the specification of the construction cloth is 0.4m*0.4m.

[0028] Furthermore, in step S1, one side of the aggregate triangular pyramid is uniformly arranged to face the extending direction of the road, so that the fluorescent material in step S2 can be applied to the same side of the aggregate.

[0029] Furthermore, in step S2, a groove with a width and a depth of 0.9-1.1 cm is left at a distance of 0.9-1.1 m.

[0030] Furthermore, in step S2, a groove with a width and a depth of 1 cm is left at a distance of 1 m.

[0031] The beneficial effect of adopting the above further solution is: leaving a groove for drainage.

[0032] Further, in step S2, the mixture is allowed to stand for 23-25 ​​hours.

[0033] Further, in step S2, the mixture is allowed to stand for 24 hours.

[0034] The present invention has the following beneficial effects: 1. The directional self-luminous pavement produced by the present invention has excellent luminous ability. It can continue to glow for 6 hours in a dark environment after being irradiated with sunlight for 2 hours.

[0035] 2. The directional self-luminous pavement produced by the present invention has the advantage of directional luminescence. By adjusting the fluorescent layer coating and aggregate arrangement, the fluorescent material is only coated on one surface of the triangular pyramid, and the surface coated with the fluorescent material is uniformly arranged along the direction of the road. In this way, directional luminescence can be achieved, and the light is emitted along the direction of the road, avoiding light pollution, improving light energy efficiency, and reducing environmental interference.

[0036] 3. The directional self-luminous pavement produced by the present invention has excellent anti-skid performance. The friction coefficient of the pavement using fluorescent materials is relatively high, and the friction coefficient can reach above 75BPN, which is much higher than the friction coefficient of ordinary asphalt pavement under normal use conditions.

[0037] 4. The directional self-luminous pavement prepared by the present invention has excellent bonding ability and the shedding rate can reach 0.30%.

[0038] 5. This invention effectively improves the durability of the pavement. By using a transparent polymer binder to encapsulate the fluorescent material and securely adsorb it to the aggregate surface, the durability of the luminous pavement is significantly enhanced. The transparent polymer binder not only protects the fluorescent material from environmental erosion (such as rain) but also ensures its stability over long-term use.

[0039] 6. This invention effectively reduces road surface temperature. The black asphalt used on the road surface significantly absorbs heat, while the fluorescent pavement, a transparent polymer binder, effectively reduces the temperature rise of the road surface. At an ambient temperature of 10°C and sunlight, the average temperature of the fluorescent pavement is 22.1°C, lower than that of ordinary asphalt pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is the construction flow chart of fluorescent pavement; Figure 2 This is a schematic diagram of a directional luminous road surface; Figure 3 This is a real picture of the directional self-luminous road surface; Figure 4 This is a real picture of the directional self-luminous road surface; Figure 5 This is the luminous effect diagram of the directional self-luminous road surface. DETAILED DESCRIPTION

[0041] The principles and features of the present invention are described below. The examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. In the examples, where specific conditions are not specified, conventional conditions or manufacturer-recommended conditions were used. Reagents or instruments used where the manufacturer is not specified are conventional products that can be purchased commercially.

[0042] Example 1 A directional self-luminous pavement comprises the following components in parts by weight: 10 parts of epoxy resin modified asphalt, 6 parts of transparent polymer binder, 4 parts of fluorescent material, 1 part of cement-based adhesive, 1 part of unsaturated polyester resin adhesive, 85 parts of aggregate, 1 part of ethanol and 1 part of epichlorohydrin.

[0043] The epoxy resin modified asphalt comprises the following components in parts by weight: 15 parts of SBS modified asphalt, 7 parts of epoxy resin and 5 parts of ethylenediamine.

[0044] The transparent polymer adhesive comprises the following components in parts by weight: 50 parts of epoxy resin and 25 parts of polyetheramine. The transparent polymer adhesive is obtained by mixing the epoxy resin and the polyetheramine in a weight ratio of 2:1 and stirring them uniformly.

[0045] The fluorescent material comprises the following components in parts by weight: 45 parts of plant fiber, 22 parts of strontium carbonate, 10 parts of rare earth europium oxide, 10 parts of rare earth dysprosium oxide, 3 parts of starch, 1 part of o-phenanthroline, 1 part of polypropylene, 10 parts of bisphenol A epoxy resin and 8 parts of epichlorohydrin.

[0046] The cement-based adhesive comprises the following components in parts by weight: 40 parts of cement, 35 parts of fine aggregate, 0.5 parts of cellulose ether and 10 parts of dispersed latex.

[0047] The unsaturated polyester resin adhesive comprises the following components in parts by weight: 40 parts of unsaturated polyester resin, 3 parts of methyl ethyl ketone peroxide, 1 part of dimethylaniline and 60 parts of calcium carbonate.

[0048] The above-mentioned aggregate includes the following components in parts by weight: 48 parts of 2-4 mm aggregate and 42 parts of 1-2 mm aggregate.

[0049] The method for preparing the above-mentioned directional self-luminous pavement comprises the following steps: S1. SBS modified asphalt, epoxy resin and ethylenediamine are evenly mixed to obtain epoxy resin modified asphalt, cement, fine aggregate, cellulose ether and dispersed latex are evenly mixed to obtain cement-based adhesive, the epoxy resin modified asphalt and cement-based adhesive are mixed and then applied on a 0.4m*0.4m construction cloth to form an asphalt layer, 2-4mm basalt aggregate and 1-2mm basalt aggregate are mixed to obtain aggregate, and then one side of the aggregate is uniformly arranged on the construction cloth facing the extension direction of the road so that the fluorescent material in step S2 can be applied to the same side of the aggregate, and the excess aggregate is removed after compaction and standing for 24 hours; S2. The plant fiber was crushed and treated at 12000 r / min for 8 min to obtain fiber particles of 100-200 mesh, and then immersed in 8wt.% sodium hydroxide solution, stirred at 50°C for 1.5h, the fiber particles were filtered and rinsed to neutrality, and then added to a transparent liquid that is easy to coagulate at room temperature, stirred at 90°C to obtain a fiber solution with a mass fraction of 8wt.%, and epichlorohydrin and starch were added and stirred at 70°C for 2.5h to obtain a fiber-containing sol; strontium carbonate, rare earth europium oxide and rare earth dysprosium oxide were dissolved in deionized water, and o-phenanthroline and polypropylene were added and stirred for 1.5h to obtain a solution containing a luminescent center; the solution containing the luminescent center was added dropwise to the fiber-containing sol obtained in the first step and stirred evenly, and then ammonia water was added to adjust the pH value to 8, and the reaction was continued for 12 min to obtain a fiber solution containing a luminescent center; extrude the fiber solution containing a luminescent center into a coagulation bath through a spinneret with an aperture of 0.2 mm, crush it after solidification and forming, and obtain a fluorescent material; mix epoxy resin and polyetheramine to obtain a transparent polymer binder; mix unsaturated polyester resin, methyl ethyl ketone peroxide, dimethylaniline and calcium carbonate to obtain an unsaturated polyester resin adhesive; then mix the transparent polymer binder and the fluorescent material; add unsaturated polyester resin adhesive, ethanol and epichlorohydrin and mix evenly; apply it on the upper layer of the aggregate in the shape of an arrow to form a fluorescent layer; and then evenly coat the other areas with epoxy resin modified asphalt, and leave a groove with a depth and width of 1 cm at a distance of 1 m on the surface. After standing for 24 hours, a directional self-luminous pavement is obtained. The construction process is as follows Figure 1 The schematic diagram of directional luminous road surface is shown in Figure 2 The actual picture of the prepared part of the directional self-luminous road surface is shown in Figure 3 As shown, Figure 3 The left picture shows the luminous road surface under light, and the right picture shows the luminous road surface in a dark environment. Figure 4 shown.

[0050] Example 2 A directional self-luminous pavement comprises the following components in parts by weight: 9 parts of epoxy resin modified asphalt, 5 parts of transparent polymer binder, 3 parts of fluorescent material, 1 part of cement-based adhesive, 1 part of unsaturated polyester resin adhesive, 80 parts of aggregate, 1 part of ethanol and 1 part of epichlorohydrin.

[0051] The epoxy resin modified asphalt comprises the following components in parts by weight: 14 parts of SBS modified asphalt, 6 parts of epoxy resin and 4 parts of ethylenediamine.

[0052] The transparent polymer adhesive comprises the following components in parts by weight: 49 parts of epoxy resin and 24 parts of polyetheramine.

[0053] The fluorescent material includes the following components in parts by weight: 44 parts of plant fiber, 21 parts of strontium carbonate, 9 parts of rare earth europium oxide, 9 parts of rare earth dysprosium oxide, 2 parts of starch, 1 part of o-phenanthroline, 1 part of polypropylene, 9 parts of bisphenol A epoxy resin and 7 parts of epichlorohydrin.

[0054] The cement-based adhesive comprises the following components in parts by weight: 39 parts of cement, 34 parts of fine aggregate, 0.4 parts of cellulose ether and 9 parts of dispersed latex.

[0055] The unsaturated polyester resin adhesive comprises the following components in parts by weight: 39 parts of unsaturated polyester resin, 2 parts of methyl ethyl ketone peroxide, 1 part of dimethylaniline and 59 parts of calcium carbonate.

[0056] The above-mentioned aggregate includes the following components in parts by weight: 40 parts of 2-4 mm aggregate and 40 parts of 1-2 mm aggregate.

[0057] The method for preparing the above-mentioned directional self-luminous pavement comprises the following steps: S1. SBS modified asphalt, epoxy resin and ethylenediamine are mixed uniformly to obtain epoxy resin modified asphalt, cement, fine aggregate, cellulose ether and dispersed latex are mixed uniformly to obtain cement-based adhesive, the epoxy resin modified asphalt and cement-based adhesive are mixed and then applied to a 0.3m*0.3m construction cloth to form an asphalt layer, 2-4mm basalt aggregate and 1-2mm basalt aggregate are mixed to obtain aggregate, and then one side of the aggregate is uniformly arranged on the construction cloth facing the extension direction of the road so that the fluorescent material in step S2 can be applied to the same side of the aggregate, and the excess aggregate is removed after compaction and standing for 24 hours; S2. The plant fiber is crushed and treated at 10,000 r / min for 5 minutes to obtain fiber particles of 100-200 mesh, which are then immersed in a 5wt.% sodium hydroxide solution and stirred at 40°C for 1 hour. The fiber particles are filtered and rinsed until neutral, and then added to a transparent liquid that is easily coagulated at room temperature, stirred at 80°C to obtain a fiber solution with a mass fraction of 5wt.%, and epichlorohydrin and starch are added and stirred at 60°C for 2 hours to obtain a fiber-containing sol; strontium carbonate, rare earth europium oxide and rare earth dysprosium oxide are dissolved in deionized water, and o-phenanthroline and polypropylene are added and stirred for 1 hour to obtain a solution containing a luminescent center; the solution containing the luminescent center is added dropwise to the fiber-containing sol obtained in the first step and stirred evenly, and then ammonia water is added to adjust the pH value to 7, and the reaction is continued for 10 minutes. min to obtain a fiber solution containing a luminescent center; the fiber solution containing the luminescent center is extruded into a coagulation bath through a spinneret with an aperture of 0.1 mm, and crushed after solidification to obtain a fluorescent material, and the epoxy resin and polyetheramine are mixed to obtain a transparent polymer binder, and the unsaturated polyester resin, methyl ethyl ketone peroxide, dimethylaniline and calcium carbonate are mixed to obtain an unsaturated polyester resin adhesive, and then the transparent polymer binder and the fluorescent material are mixed, and then the unsaturated polyester resin adhesive, ethanol and epichlorohydrin are added and mixed evenly, and applied to the upper layer of the aggregate to form a fluorescent layer, and a groove with a depth and width of 0.9 cm is left on the surface at a distance of 0.9 m. After standing for 23 hours, a directional self-luminous pavement is obtained.

[0058] Example 3 A directional self-luminous pavement comprises the following components in parts by weight: 11 parts of epoxy resin modified asphalt, 7 parts of transparent polymer binder, 5 parts of fluorescent material, 2 parts of cement-based adhesive, 2 parts of unsaturated polyester resin adhesive, 90 parts of aggregate, 2 parts of ethanol and 2 parts of epichlorohydrin.

[0059] The epoxy resin modified asphalt comprises the following components in parts by weight: 16 parts of SBS modified asphalt, 8 parts of epoxy resin and 6 parts of ethylenediamine.

[0060] The transparent polymer adhesive comprises the following components in parts by weight: 51 parts of epoxy resin and 26 parts of polyetheramine.

[0061] The fluorescent material includes the following components in parts by weight: 46 parts of plant fiber, 23 parts of strontium carbonate, 11 parts of rare earth europium oxide, 11 parts of rare earth dysprosium oxide, 4 parts of starch, 2 parts of o-phenanthroline, 2 parts of polypropylene, 11 parts of bisphenol A epoxy resin and 9 parts of epichlorohydrin.

[0062] The cement-based adhesive comprises the following components in parts by weight: 41 parts of cement, 36 parts of fine aggregate, 0.6 parts of cellulose ether and 11 parts of dispersed latex.

[0063] The unsaturated polyester resin adhesive comprises the following components in parts by weight: 41 parts of unsaturated polyester resin, 4 parts of methyl ethyl ketone peroxide, 2 parts of dimethylaniline and 61 parts of calcium carbonate.

[0064] The above-mentioned aggregate includes the following components by weight: 55 parts of 2-4 mm aggregate and 45 parts of 1-2 mm aggregate.

[0065] The method for preparing the above-mentioned directional self-luminous pavement comprises the following steps: S1, SBS modified asphalt, epoxy resin and ethylenediamine are mixed uniformly to obtain epoxy resin modified asphalt, cement, fine aggregate, cellulose ether and dispersed latex are mixed uniformly to obtain cement-based adhesive, the epoxy resin modified asphalt and cement-based adhesive are mixed and applied on a 0.5m*0.5m construction cloth to form an asphalt layer, 2-4mm basalt aggregate and 1-2mm basalt aggregate are mixed to obtain aggregate, and then one side of the aggregate is uniformly arranged on the construction cloth facing the extension direction of the road so that the fluorescent material in step S2 can be applied to the same side of the aggregate, and the excess aggregate is removed after compaction and standing for 25 hours; S2. The plant fiber is crushed and treated at 15000 r / min for 10 min to obtain fiber particles of 100-200 mesh, which are then immersed in a 10wt.% sodium hydroxide solution and stirred at 60°C for 2h. The fiber particles are filtered and rinsed until neutral, and then added to a transparent liquid that is easily coagulated at room temperature and stirred at 100°C to obtain a fiber solution with a mass fraction of 10wt.%, and epichlorohydrin and starch are added and stirred at 80°C for 3h to obtain a fiber-containing sol; strontium carbonate, rare earth europium oxide and rare earth dysprosium oxide are dissolved in deionized water, and o-phenanthroline and polypropylene are added and stirred for 2h to obtain a solution containing a luminescent center; the solution containing the luminescent center is added dropwise to the fiber-containing sol obtained in the first step and stirred evenly, and then ammonia water is added to adjust the pH value to 9, and the reaction is continued for 15 min to obtain a fiber solution containing a luminescent center; the fiber solution containing the luminescent center is extruded into a coagulation bath through a spinneret with an aperture of 0.2 mm, and crushed after solidification to obtain a fluorescent material, and the epoxy resin and polyetheramine are mixed to obtain a transparent polymer binder, and the unsaturated polyester resin, methyl ethyl ketone peroxide, dimethylaniline and calcium carbonate are mixed to obtain an unsaturated polyester resin adhesive, and then the transparent polymer binder and the fluorescent material are mixed, and then the unsaturated polyester resin adhesive, ethanol and epichlorohydrin are added and mixed evenly, and applied to the upper layer of the aggregate in the shape of an arrow to form a fluorescent layer, and the other areas are evenly coated with epoxy resin modified asphalt, and a groove with a depth and width of 1.1 cm is left on the surface at a distance of 1.1 m. After standing for 25 hours, a directional self-luminous pavement is obtained.

[0066] Comparative Example 1 A luminous pavement, wherein the difference between comparative example 1 and embodiment 1 is that the aggregate of comparative example 1 is directly sprinkled on the construction cloth, and comparative example 1 only contains epoxy resin modified asphalt and fluorescent material.

[0067] Test Example 1 Take part of the directional self-luminous pavement prepared in Example 2 and irradiate it under sunlight for 2 hours to test its luminous effect. The results after 6 hours are as follows: Figure 5 As shown, Figure 5 In the middle, the left picture shows the directional self-luminous road surface emitting light in the positive direction, and the right picture shows the directional self-luminous road surface emitting light in the negative direction.

[0068] Depend on Figure 5 It can be seen that the method provided by the present invention can achieve directional luminescence.

[0069] Test Example 2 The luminous intensity of the directional self-luminous pavement prepared in Examples 1-2 and the luminous pavement prepared in Comparative Example 1 was tested, and the results are shown in Table 2.

[0070] Table 2 Changes in self-luminous intensity

[0071] As can be seen from Table 2, the method provided by the present invention can retain the fluorescent material on the road surface for a long time.

[0072] Test Example 3 The luminous distances of the directional self-luminous pavements prepared in Example 1 and Example 4 were tested, and the results are shown in Table 3.

[0073] Table 3 Comparison of luminous distance

[0074] As can be seen from Table 3, the present invention provides that setting the aggregate in a fixed manner on the road surface can increase the luminous distance of the road surface. When the angle between the luminous surface of the aggregate and the horizontal plane is 45°, the luminous visible distance is the largest, which is 200m.

[0075] Test Example 4 The friction coefficients of the directional self-luminous pavements prepared in Examples 1-3 were tested, with ordinary asphalt pavement used as a comparison. The results are shown in Table 4.

[0076] Table 4 Friction coefficient

[0077] Test Example 5 The bonding ability of the directional self-luminous pavement was tested. The directional self-luminous pavements prepared in Examples 1-3 were used as specimens 1-3, and the standard asphalt concrete specimen was used as a control. A 2480 kg car was used to repeatedly roll the pavement 100 times. The aggregate shedding amount and shedding rate are shown in Table 5.

[0078] Table 5 Aggregate shedding amount and shedding rate

[0079] As can be seen from Table 5, the shedding rates of the directional self-luminous pavement prepared by the present invention are 0.5%, 0.30% and 0.85% respectively, which are lower than the shedding rate of 1.3% of the standard asphalt concrete specimen, indicating that the shedding rate of the present invention is lower and the bonding ability is better.

[0080] Test Example 6 Under the condition of an ambient temperature of 10°C and after 2 hours of sunlight exposure, the average temperature values ​​of the directional self-luminous pavement provided by the present invention and the ordinary asphalt pavement were tested, and the results are shown in Table 6.

[0081] Table 6 Average road surface temperature

[0082] As shown in Table 6, the average temperature of the directional self-luminous pavement is 22.1°C, and the average temperature of the ordinary asphalt pavement is 23.5°C, which shows that the present invention can effectively reduce the pavement temperature.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A directional self-luminous pavement, characterized in that: The invention comprises the following components in parts by weight: 9-11 parts of epoxy resin modified asphalt, 5-7 parts of transparent polymer binder, 3-5 parts of fluorescent material, 1-2 parts of cement-based adhesive, 1-2 parts of unsaturated polyester resin adhesive, 80-90 parts of aggregate, 1-2 parts of ethanol and 1-2 parts of epichlorohydrin.

2. The directional self-luminous pavement according to claim 1, characterized in that: The invention comprises the following components in parts by weight: 10 parts of epoxy resin modified asphalt, 6 parts of transparent polymer binder, 4 parts of fluorescent material, 1 part of cement-based adhesive, 1 part of unsaturated polyester resin adhesive, 85 parts of aggregate, 1 part of ethanol and 1 part of epichlorohydrin.

3. The directional self-luminous pavement according to claim 1 or 2, characterized in that: The epoxy resin modified asphalt comprises the following components in parts by weight: 14-16 parts of SBS modified asphalt, 6-8 parts of epoxy resin and 4-6 parts of ethylenediamine.

4. The directional self-luminous pavement according to claim 1 or 2, characterized in that: The transparent polymer adhesive comprises the following components in parts by weight: 51-49 parts of epoxy resin and 24-26 parts of polyetheramine.

5. The directional self-luminous pavement according to claim 1 or 2, characterized in that: The fluorescent material comprises the following components in parts by weight: 44-46 parts of plant fiber, 21-23 parts of strontium carbonate, 9-11 parts of rare earth europium oxide, 9-11 parts of rare earth dysprosium oxide, 2-4 parts of starch, 1-2 parts of o-phenanthroline, 1 part of polypropylene, 9-11 parts of bisphenol A epoxy resin and 7-9 parts of epichlorohydrin.

6. The directional self-luminous pavement according to claim 5, characterized in that: The fluorescent material is prepared by the following method: The first step is to crush the plant fiber and treat it at 10,000-15,000 r / min for 5-10 minutes to obtain fiber particles of 100-200 mesh. The fiber particles are then immersed in a 5-10wt.% sodium hydroxide solution and stirred at 40-60°C for 1-2 hours. The fiber particles are filtered and rinsed until neutral. The fiber solution is then added to a bisphenol A epoxy resin and stirred at 80-100°C to obtain a fiber solution with a mass fraction of 5-10wt.%. Epichlorohydrin and starch are added and the mixture is stirred at 60-80°C for 2-3 hours to obtain a fiber-containing sol. Step 2: Dissolve strontium carbonate, rare earth europium oxide, and rare earth dysprosium oxide in deionized water, add o-phenanthroline and polypropylene, and stir for 1-2 hours to obtain a solution containing the luminescent center; Step 3: Add the solution containing the luminescent center obtained in the second step dropwise to the fiber-containing sol obtained in the first step and stir evenly. Then, add ammonia water to adjust the pH value to 7-9 and continue the reaction for 10-15 minutes to obtain a fiber solution containing the luminescent center. Step 4: The fiber solution containing the luminescent center obtained in the third step is extruded into a coagulation bath through a spinneret with an aperture of 0.1-0.3 mm, and crushed after solidification to obtain a fluorescent material.

7. The directional self-luminous pavement according to claim 1 or 2, characterized in that: The cement-based adhesive comprises the following components in parts by weight: 39-41 parts of cement, 34-36 parts of fine aggregate, 0.4-0.6 parts of cellulose ether and 9-11 parts of dispersed latex.

8. The directional self-luminous pavement according to claim 1 or 2, characterized in that: The unsaturated polyester resin adhesive comprises the following components in parts by weight: 39-41 parts of unsaturated polyester resin, 2-4 parts of methyl ethyl ketone peroxide, 1-2 parts of dimethylaniline and 59-61 parts of calcium carbonate.

9. The directional self-luminous pavement according to claim 1 or 2, characterized in that: The aggregate comprises the following components by weight: 40-55 parts of 2-4 mm aggregate and 40-45 parts of 1-2 mm aggregate, and the aggregate is basalt aggregate.

10. The method for preparing a directional self-luminous pavement according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Mix epoxy resin modified asphalt and cement-based adhesive and apply the mixture on a construction cloth. Then, place aggregate on the construction cloth, compact it, let it stand, and remove excess aggregate. S2. After mixing the transparent polymer binder and the fluorescent material, add unsaturated polyester resin adhesive, ethanol and epichlorohydrin, mix well and apply it on the upper layer of the aggregate, and leave a groove on the surface. After standing, a directional self-luminous pavement is obtained.

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