High-toughness hot-repairable plant-mixed cold-recycled drainage pavement material and application thereof

Abstract

The application discloses a high-toughness plant-mixed cold-recycled drainage pavement material capable of being hot repaired and application thereof, and relates to the technical field of highway engineering. The pavement material comprises, in terms of mass fraction, 100 parts of recycled asphalt pavement material, 2.4-4.8 parts of a water-based epoxy regenerant, and 0.8-2.4 parts of high-viscosity emulsified asphalt. The water-based epoxy regenerant is prepared by uniformly stirring modified water-based epoxy resin and a water-based toughening compatible curing agent. The modified water-based epoxy resin is prepared by heating and stirring modified epoxy monomers, then adding modified epoxy monomer emulsifier drop by drop, uniformly stirring and cooling. The water-based toughening compatible curing agent is prepared by emulsifying a toughening compatible curing agent and an emulsifier soap solution by using a colloid mill. The pavement material obtained by the method has excellent hot repairability, high-temperature anti-rutting performance, low-temperature anti-cracking performance and water-resistance and damage-resistance.

Description

Technical Field

[0001] This invention relates to the field of highway engineering technology, and in particular to a heat-repairable, high-toughness plant-mixed cold-recycled drainage pavement material and its application. Background Technology

[0002] Every year, road maintenance generates a large amount of recycled asphalt pavement (RAP). Plant-mix cold recycling is one way to recycle this resource. When plant-mix cold recycling uses only emulsified asphalt or foamed asphalt without additives like cement, the pavement material's high-temperature rutting resistance is poor. Using cement or ordinary water-based epoxy resin as curing materials results in poor low-temperature bending performance. Typically, after using epoxy resin and cement as curing materials to reinforce emulsified asphalt cold recycled pavement, the recycled material cannot be softened by heat. Therefore, once cracks appear, they can only be repaired by methods like crack sealing and milling and repaving, unlike hot-mix asphalt mixtures which soften upon heating and can be thermally repaired. Furthermore, milling waste cannot be reused through hot recycling. Emulsified asphalt, as a recycled binder, has weak bonding properties, resulting in cold recycled materials often having a dense structure. Additionally, the insufficient water stability of the recycled mixture makes it impossible to prepare porous, permeable recycled pavement materials. Moreover, in-situ cold recycling usually has a long curing period, especially when using cement as a curing agent, typically requiring more than 7 days before traffic can resume.

[0003] Therefore, it is of great significance to develop a plant-mixed cold recycled drainage pavement material that can be thermally repaired, has high toughness, and can be quickly opened to traffic. Summary of the Invention

[0004] To address the shortcomings of the existing technologies, this invention provides a heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material and its application. By adding a water-based epoxy recycling agent to modify the asphalt material, a permeable, cold-recycled asphalt mixture with excellent heat-repairable properties, high-temperature rutting resistance, low-temperature crack resistance, and water damage resistance is prepared. This is achieved through the following scheme:

[0005] In a first aspect, the present invention provides a heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material, characterized in that it comprises, by mass fraction: 100 parts recycled asphalt pavement material, 2.4 to 4.8 parts water-based epoxy regenerator, and 0.8 to 2.4 parts high-viscosity emulsified asphalt.

[0006] The preparation method of the waterborne epoxy regenerator includes: according to the mass parts, 9-11 parts of modified waterborne epoxy resin and 29-31 parts of waterborne toughening compatibility curing agent are stirred evenly to obtain the waterborne epoxy regenerator.

[0007] The modified waterborne epoxy resin is prepared by heating and stirring 55-65 parts of modified epoxy monomer while heating, and then adding 100 parts of modified epoxy monomer emulsifier at 70°C dropwise, stirring evenly and cooling. The waterborne toughening compatibility curing agent is prepared by heating 49-51 parts of toughening compatibility curing agent to 140°C and emulsifying it with 49-51 parts of 70°C emulsifier soap solution using a colloid mill for 5 minutes.

[0008] The toughening and compatibility curing agent is obtained by heating and mixing an accelerator, a toughening curing agent, a plasticizer, a toughening agent, and an asphalt recycling agent. Specifically, by mass fraction, the accelerator is prepared by mixing 4-6 parts of polyetheramine with an average molecular weight of 220-230 and 8-9 parts of modified epoxy resin, and then reacting at 70°C for 2 hours. The toughening curing agent is prepared by mixing 10-11 parts of polyetheramine with an average molecular weight of 390-410 and 10-11 parts of modified epoxy monomer, and then reacting at 70°C for 4 hours. The plasticizer is prepared by mixing 19-21 parts of polyetheramine with an average molecular weight of 1900-2100 and 3-5 parts of modified epoxy resin, and then reacting at 70°C for 10 hours.

[0009] The preparation method of the aforementioned heat-repairable, high-toughness plant-mixed cold-recycled drainage pavement material is as follows: 100 parts by weight of recycled asphalt pavement material (RAP) of different gradations are mixed evenly; then 2.4–4.8 parts by weight of water-based epoxy recycling agent are added to the mixture and mixed evenly; finally, 0.8–2.4 parts by weight of high-viscosity emulsified asphalt are added to the mixture and mixed evenly. Specifically, the recycled asphalt pavement material with a thickness <4.75mm accounts for 10%–20% by weight, and the recycled asphalt pavement material with a thickness ≥4.75mm accounts for 80%–90% by weight.

[0010] Furthermore, when the above-mentioned recycled asphalt pavement material with a particle size of ≥4.75mm is used in the surface layer of asphalt pavement, the maximum particle size range is 16mm; when the recycled asphalt pavement material with a particle size of ≥4.75mm is used in the intermediate layer of asphalt pavement, the maximum particle size range is 25mm.

[0011] Furthermore, the aforementioned water-based epoxy regenerator needs to be added to recycled asphalt pavement materials of different gradations within 10 minutes for use.

[0012] Furthermore, the modified epoxy monomer mentioned above is prepared by mixing 85-95 parts of bisphenol A type E51 epoxy resin and 9-11 parts of butyl glycidyl ether diluent.

[0013] Further, the preparation method of the above-mentioned modified epoxy monomer emulsifier is as follows: 85-95 parts of modified epoxy monomer, 130-140 parts of PEG600 with a hydroxyl value of 185-195, and 2.9-3.1 parts of potassium persulfate solution with a mass concentration of 30% are mixed and reacted at 170°C for 5 hours. After cooling, the mixture is dissolved in 800 parts of distilled water at 70°C to obtain the modified epoxy monomer emulsifier.

[0014] Furthermore, the above-mentioned emulsifier soap solution is prepared by dissolving 1 part of polyamine amide emulsifier and 1 part of imidazoline in 100 parts of water at 70°C.

[0015] Furthermore, the toughening agent mentioned above is polysulfide rubber with an average molecular weight of 1000.

[0016] Furthermore, the aforementioned asphalt recycling agent is prepared by heating 95 parts of compatibilizer to 140°C, and then mixing it with 1 part of resin and 4 parts of petroleum-based aromatic rubber oil. The compatibilizer is No. 70 petroleum asphalt; the resin is at least one of terpene resin and C9 resin.

[0017] Furthermore, the above-mentioned high-viscosity emulsified asphalt has an asphalt solids content of 50-55% and an evaporation residue dynamic viscosity ≥20000 Pa·s.

[0018] Secondly, the present invention also provides a method for applying the above-mentioned heat-repairable high-toughness plant-mixed cold recycled drainage pavement material, specifically including: transporting the heat-repairable high-toughness plant-mixed cold recycled drainage pavement material to the construction pavement within 2 hours, forming a drainage-type cold recycled asphalt pavement through paving and compaction, and curing for 46-48 hours.

[0019] When heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material is applied to asphalt pavements, cracks that appear can be repaired using a heat-repair method. The specific method is as follows:

[0020] (1) When the width of the road surface crack is ≤1.5mm, the road surface can be heated by the on-site hot recycling heating equipment. When the temperature of the road surface material is heated to 110~130℃, it can be rolled by a double steel wheel roller to eliminate the road surface crack. The road can be opened to traffic after cooling to 50℃.

[0021] (2) When the width of the road surface crack is 1.5 to 5 mm, the road surface can be heated to 110 to 130°C by using on-site hot recycling heating equipment, and then the road surface can be loosened by using on-site hot recycling shaping equipment and compacted by using a double steel wheel roller to eliminate the road surface crack. The road surface can be opened to traffic after cooling to 50°C.

[0022] (3) When the width of the road surface crack is greater than 5mm, the cracks in the underlying layer of the road surface should be repaired and then the plant-mixed hot recycling method should be adopted. The high-toughness plant-mixed cold recycled drainage pavement material that can be repaired by heat should be milled and transported to the asphalt mixing plant. It should be remixed at 110-130℃ and then paved and rolled to form a drainage cold recycled asphalt pavement. It can be opened to traffic when cooled to 50℃.

[0023] The functions of each component in this invention are as follows: The water-based epoxy recycling agent specified in this invention has recycling capabilities, is compatible with emulsified asphalt, and enhances the high and low temperature performance and water damage resistance of emulsified asphalt. During mixing, it can epoxy modify the emulsified asphalt and has strong adhesion to the binder after modification. By reducing the amount of fine RAP with a particle size <4.5mm, a permeable cold recycled asphalt mixture with excellent high-temperature rutting resistance, low-temperature crack resistance, and water damage resistance can be prepared. Meanwhile, the high-viscosity emulsified asphalt modified with the water-based epoxy recycling agent remains a hot-melt material, which can soften and melt when heated above 110℃. For minor cracks, the pavement can be heated for hot repair; for moderate cracks, in-situ hot recycling can be performed; for severe cracks, the heat-repairable, high-toughness, fast-opening, plant-mixed cold recycled drainage pavement material can be milled and then used for plant-mixed hot recycling.

[0024] This invention also defines a method for preparing a water-based toughening compatibility curing agent. Through the compounding design of the curing agent, the curing time of the water-based epoxy regenerator can be adjusted, the storage stability of the water-based epoxy resin can be enhanced, and the demulsification speed of cationic emulsified asphalt can be adjusted. This allows cold recycled pavement to form strength and be opened to traffic within 46 to 48 hours.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] 1. The water-based epoxy regenerator used in this invention has regeneration capabilities, is compatible with emulsified asphalt, and enhances the high and low temperature performance and water damage resistance of emulsified asphalt. It can perform epoxy modification on emulsified asphalt, and the modified binder has strong adhesion and is still a hot-melt material. It can prepare a permeable cold recycled asphalt mixture that is heat-repairable, has excellent high-temperature rutting resistance, low-temperature crack resistance, and water damage resistance.

[0027] 2. At the same time, the use of water-based toughening compatibility curing agent can not only adjust the curing time of water-based epoxy regenerator, but also enhance the storage stability of water-based epoxy resin. It also has the function of adjusting the demulsification rate of cationic emulsified asphalt, which can allow cold recycled pavement to form strength and be opened to traffic within 48 hours. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The specific models and / or sources of the raw materials used in the following embodiments and comparative examples are shown in Table 1 below:

[0030] Table 1. Types and / or Sources of Raw Materials

[0031]

[0032]

[0033] Unless otherwise specified, the preparation method of the high-toughness plant-mixed cold recycled drainage pavement material in the following embodiments and comparative examples is as follows: 100 parts by weight of recycled asphalt pavement material (RAP) of different gradations are mixed evenly; then 2.4 to 4.8 parts by weight of water-based epoxy recycling agent are added to the mixture and mixed evenly; finally, 0.8 to 2.4 parts by weight of high-viscosity emulsified asphalt are added to the mixture and mixed evenly. The recycled asphalt pavement material of different gradations has a weight percentage of <4.75mm (10% to 20%) and a weight percentage of ≥4.75mm (80% to 90%). Pavement materials prepared within the range of raw material proportions disclosed in this section achieve relatively good results. To simplify the steps, the embodiments and comparative examples use the following raw material proportions and preparation steps.

[0034] Example 1

[0035] 1. Preparation of modified epoxy monomer and modified epoxy monomer emulsifier: 90 parts of bisphenol A type E51 epoxy resin and 10 parts of butyl glycidyl ether diluent were mixed evenly at 30℃ to obtain the modified epoxy monomer. 90 parts of the modified epoxy monomer, 135 parts of PEG600 with a hydroxyl value of 185-195, and 3 parts of a 30% potassium persulfate solution were mixed evenly and reacted at 170℃ for 5 hours. After cooling to 70℃, the mixture was dissolved in 800 parts of 70℃ distilled water to obtain the modified epoxy monomer emulsifier.

[0036] 2. Preparation of modified waterborne epoxy resin

[0037] 60 parts of modified epoxy monomer were heated to 70°C and stirred at 1200 r / min. 100 parts of modified epoxy monomer emulsifier at 70°C were added dropwise and stirred until homogeneous. The mixture was then cooled to room temperature to obtain the modified waterborne epoxy resin.

[0038] 3. Preparation of water-based toughening and compatibility curing agent

[0039] Five parts of polyetheramine with an average molecular weight of 230 and 8.6 parts of modified epoxy resin were mixed evenly and reacted at 70°C for 2 hours to obtain an accelerated curing agent. Ten parts of polyetheramine with an average molecular weight of 400 and 10 parts of modified epoxy monomer were mixed evenly and reacted at 70°C for 4 hours to obtain a toughening curing agent. Twenty parts of polyetheramine with an average molecular weight of 2000 and 4 parts of modified epoxy resin were mixed evenly and reacted at 70°C for 10 hours to obtain a plasticizing curing agent. 95 parts of No. 70 petroleum asphalt were heated to 140°C, and one part of terpene resin and four parts of petroleum-based aromatic rubber oil were added and stirred evenly to obtain an asphalt recycling agent.

[0040] Five parts of accelerator curing agent, 16 parts of plasticizer curing agent, 24 parts of plasticizer curing agent, 1 part of polysulfide rubber with an average molecular weight of 1000, and 14 parts of asphalt recycling agent were heated to 140°C and mixed evenly to obtain a toughening compatibility curing agent. One part of polyamine amide emulsifier and one part of imidazoline were dissolved in 100 parts of distilled water at 70°C to obtain an emulsifier soap solution. Fifty parts of the toughening compatibility curing agent were heated to 140°C and emulsified with 50 parts of the 70°C emulsifier soap solution using a colloid mill for 5 minutes to obtain a water-based toughening compatibility curing agent.

[0041] 4. Preparation of water-based epoxy regenerator

[0042] Mix 10 parts of modified waterborne epoxy resin and 30 parts of waterborne toughening and compatibility curing agent according to the specified mass ratio to obtain waterborne epoxy regenerator.

[0043] 5. Preparation of high-toughness plant-mixed cold recycled drainage pavement materials that can be heat-repaired

[0044] Twelve parts of RAP with a particle size of 4.75–16 mm and 82 parts of RAP with a particle size <4.75 mm were mixed for 90 seconds. Then, 2.8 parts by weight of water-based epoxy recycling agent were added and mixed for 90 seconds (within 3 minutes of the preparation of the water-based epoxy recycling agent). Finally, 1.2 parts by weight of high-viscosity emulsified asphalt were added and mixed for 90 seconds to prepare a hot-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material. Marshall blocks, rut blocks, and small beam blocks were formed and cured at 25℃ for 28 days for performance testing. The test results are shown in Table 2.

[0045] Example 2

[0046] 1. Preparation of modified epoxy monomers and modified epoxy monomer emulsifiers

[0047] 90 parts of bisphenol A type E51 epoxy resin and 10 parts of butyl glycidyl ether diluent were mixed evenly at 30°C to obtain the modified epoxy monomer. 90 parts of the modified epoxy monomer, 135 parts of PEG600 with a hydroxyl value of 185-195, and 3 parts of a 30% potassium persulfate solution were mixed evenly and reacted at 170°C for 5 hours. After cooling to 70°C, the mixture was dissolved in 800 parts of 70°C distilled water to obtain the modified epoxy monomer emulsifier.

[0048] 2. Preparation of modified waterborne epoxy resin

[0049] 60 parts of modified epoxy monomer were heated to 70°C and stirred at 1200 r / min. 100 parts of modified epoxy monomer emulsifier at 70°C were added dropwise and stirred until homogeneous. The mixture was then cooled to room temperature to obtain the modified waterborne epoxy resin.

[0050] 3. Preparation of water-based toughening and compatibility curing agent

[0051] Five parts of polyetheramine with an average molecular weight of 230 and 8.6 parts of modified epoxy resin were mixed evenly and reacted at 70°C for 2 hours to obtain an accelerated curing agent. Ten parts of polyetheramine with an average molecular weight of 400 and 10 parts of modified epoxy monomer were mixed evenly and reacted at 70°C for 4 hours to obtain a toughening curing agent. Twenty parts of polyetheramine with an average molecular weight of 2000 and 4 parts of modified epoxy resin were mixed evenly and reacted at 70°C for 10 hours to obtain a toughening curing agent. 95 parts of No. 70 petroleum asphalt were heated to 140°C, and one part of C9 resin and four parts of petroleum-based aromatic rubber oil were added and stirred evenly to obtain an asphalt recycling agent.

[0052] Five parts of accelerator curing agent, 16 parts of plasticizer curing agent, 24 parts of plasticizer curing agent, 1 part of polysulfide rubber with an average molecular weight of 1000, and 14 parts of asphalt recycling agent were heated to 140°C and mixed evenly to obtain a toughening compatibility curing agent. One part of polyamine amide emulsifier and one part of imidazoline were dissolved in 100 parts of distilled water at 70°C to obtain an emulsifier soap solution. Fifty parts of the toughening compatibility curing agent were heated to 140°C and emulsified with 50 parts of the 70°C emulsifier soap solution using a colloid mill for 5 minutes to obtain a water-based toughening compatibility curing agent.

[0053] 4. Preparation of water-based epoxy regenerator

[0054] Mix 10 parts of modified waterborne epoxy resin and 30 parts of waterborne toughening and compatibility curing agent according to the specified mass ratio to obtain waterborne epoxy regenerator.

[0055] 5. Preparation of high-toughness plant-mixed cold recycled drainage pavement materials that can be heat-repaired

[0056] 15 parts of RAP with a particle size of 4.75–26 mm and 79 parts of RAP with a particle size <4.75 mm were mixed for 90 seconds. Then, 2.8 parts by weight of water-based epoxy recycling agent were added and mixed for 90 seconds (within 3 minutes of the preparation of the water-based epoxy recycling agent). Finally, 1.2 parts by weight of high-viscosity emulsified asphalt were added and mixed for 90 seconds to obtain a heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material. Marshall blocks, rut blocks, and small beam blocks were formed and cured at 25℃ for 28 days for performance testing. The test results are shown in Table 2.

[0057] Example 3

[0058] In this example, the preparation methods for the modified epoxy monomer and modified epoxy monomer emulsifier, the modified waterborne epoxy resin, the waterborne toughening and compatible curing agent, and the waterborne epoxy regenerator are all the same as in Example 1. The only difference lies in the following preparation method for the heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material, specifically:

[0059] Eighteen parts of RAP with a particle size of 4.75–31.5 mm and 76 parts of RAP with a particle size <4.75 mm were mixed for 90 seconds. Then, 2.8 parts by weight of water-based epoxy recycling agent were added to the mixture and mixed for 90 seconds (within 3 minutes of the preparation of the water-based epoxy recycling agent). Finally, 1.2 parts by weight of high-viscosity emulsified asphalt were added and mixed for 90 seconds to obtain a heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material. Marshall blocks, rut blocks, and small beam blocks were formed and cured at 25℃ for 28 days for performance testing. The test results are shown in Table 2.

[0060] Example 4

[0061] The primary resin regenerated top layer mixture prepared in Example 1 was not compacted and cured for 28 days. It was then crushed by a hammer crusher to produce RAP, heated to 130°C and stirred for 180 seconds, and then formed into Marshall specimens, rut specimens, and small beam specimens. After curing at 25°C for 7 days, performance tests were conducted. The test results are shown in Table 2.

[0062] Example 5

[0063] The primary resin regenerated top layer mixture prepared in Example 2 was not compacted and cured for 28 days. It was then crushed by a hammer crusher to produce RAP, heated to 130°C and stirred for 180 seconds, and then formed into Marshall specimens, rut specimens, and small beam specimens. After curing at 25°C for 7 days, performance tests were conducted. The test results are shown in Table 2.

[0064] Example 6

[0065] The primary resin regenerated top layer mixture prepared in Example 3 was not compacted and cured for 28 days. It was then crushed by a hammer crusher to produce RAP, heated to 130°C and stirred for 180 seconds, and then formed into Marshall specimens, rut specimens, and small beam specimens. After curing at 25°C for 28 days, performance tests were conducted. The test results are shown in Table 2.

[0066] Comparative Example 1

[0067] Marshall specimens, rut specimens, and beam specimens of AC-13 plant-mixed cold recycled cement-emulsified asphalt with 8.5% emulsified asphalt, 2% cement, and 1.5% external water were tested for performance. The test results are shown in Table 1.

[0068] According to the "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTGE20-2011), Marshall specimens, rut slab specimens, and beam specimens of the mixtures from Examples 1 to 6 and Comparative Example 1 were molded. The specimens were then subjected to high-temperature stability, low-temperature performance, and water stability tests. The test results are shown in Table 2 below.

[0069] Table 2 Results of Mixture Performance Tests

[0070]

[0071] Compared to Comparative Example 1, the low-temperature performance and high / low temperature water stability of the heat-repairable high-toughness plant-mixed cold recycled drainage pavement materials prepared in Examples 1-3 are significantly higher than those of cement-emulsified asphalt plant-mixed cold recycled materials. While their high-temperature rutting resistance is slightly lower than that of cement-emulsified asphalt plant-mixed cold recycled materials, it far exceeds the requirements for road use and can be well applied to road surfaces. The heat-repairable high-toughness plant-mixed cold recycled drainage pavement materials have good permeability, which can effectively reduce road surface water accumulation. As can be seen from Examples 4-6, after heat repair, the heat-repairable high-toughness rapid-opening plant-mixed cold recycled drainage pavement materials still exhibit good high-temperature rutting resistance, low-temperature bending deformation capacity, and water damage resistance.

[0072] The above detailed embodiments describe the implementation of the present invention; however, the present invention is not limited to the specific details described in the above embodiments. Within the scope of the claims and technical concept of the present invention, various simple modifications and changes can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

Claims

1. A heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material, characterized in that, The composition by weight is as follows: 100 parts recycled asphalt pavement material, 2.4 to 4.8 parts water-based epoxy recycling agent, and 0.8 to 2.4 parts high-viscosity emulsified asphalt. In the recycled asphalt pavement material, the proportion of particles with a diameter <4.75mm is 10%~20%, and the proportion of particles with a diameter ≥4.75mm is 80%~90%. The waterborne epoxy regenerator is prepared by uniformly mixing 9-11 parts of modified waterborne epoxy resin and 29-31 parts of waterborne toughening and compatibility curing agent. The modified waterborne epoxy resin is prepared by mixing 55-65 parts of modified epoxy monomer and 100 parts of modified epoxy monomer emulsifier. The waterborne toughening and compatibility curing agent is prepared by mixing 49-51 parts of toughening and compatibility curing agent and 49-51 parts of emulsifier soap solution. The toughening and compatible curing agent is obtained by heating and mixing an accelerator, a toughening curing agent, a plasticizer, a toughening agent, and an asphalt recycling agent. Specifically, by weight, the accelerator is prepared from 4-6 parts of polyetheramine with an average molecular weight of 220-230 and 8-9 parts of modified epoxy resin; the toughening curing agent is prepared from 10-11 parts of polyetheramine with an average molecular weight of 390-410 and 10-11 parts of modified epoxy monomer; and the plasticizer is prepared from 19-21 parts of polyetheramine with an average molecular weight of 1900-2100 and 3-5 parts of modified epoxy resin. The modified epoxy monomer is prepared by mixing 85-95 parts of bisphenol A type E51 epoxy resin and 9-11 parts of butyl glycidyl ether diluent.

2. The heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material according to claim 1, characterized in that, The modified epoxy monomer emulsifier, by weight, is prepared from 85-95 parts of modified epoxy monomer, 130-140 parts of polyethylene glycol 600 with a hydroxyl value of 185-195, and 0.87-0.93 parts of potassium persulfate.

3. The heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material according to claim 1, characterized in that, The emulsifier soap solution is prepared by dissolving 1 part polyamine amide emulsifier and 1 part imidazoline in 100 parts water at 70°C.

4. The heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material according to claim 1, characterized in that, The toughening agent is polysulfide rubber with an average molecular weight of 1000.

5. The heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material according to claim 1, characterized in that, The asphalt rejuvenator is prepared by heating 95 parts of compatibilizer to 140°C and then mixing it with 1 part of resin and 4 parts of petroleum-based aromatic rubber oil.

6. The heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material according to claim 5, characterized in that, The compatibilizer is No. 70 petroleum asphalt.

7. The heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material according to claim 5, characterized in that, The resin is at least one of terpene resin and C9 resin.

8. The heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material according to claim 1, characterized in that, The high-viscosity emulsified asphalt has an asphalt solids content of 50-55% and an evaporation residue dynamic viscosity ≥20000 Pa·s.

9. The application method of the heat-repairable, high-toughness, plant-mixed, cold-recycled drainage pavement material according to any one of claims 1 to 8, characterized in that, Specifically, it includes: The heat-repairable, high-toughness plant-mixed cold recycled drainage pavement material is paved and compacted to form a drainage-type cold recycled asphalt pavement, which is then cured for 46-48 hours.

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