Highly viscous anti-skid thin layer maintenance material and water-based organic silicon epoxy resin modified emulsified asphalt

Abstract

The application provides a high-viscosity anti-sliding thin-layer maintenance material and water-based organic silicon epoxy resin modified emulsified asphalt, which is composed of the following components in parts by weight: 100 parts of 70# cationic emulsified asphalt with a solid content of 60-65%, 2.5-15 parts of water-based organic silicon epoxy resin with a solid content of 55-65%, and 1.2-10 parts of water-soluble modified amine curing agent; the water-based organic silicon epoxy resin is prepared by the following steps: 1) condensation of bisphenol A epoxy resin and alkoxy or hydroxy siloxane to obtain organic silicon modified epoxy resin connected by SiOC bonds; and 2) reaction of the organic silicon modified epoxy resin with carboxylated dextran to obtain. The adhesion performance, toughness and weather resistance of the cementing material are improved.

Description

Technical Field

[0001] This invention belongs to the field of rapid preventive maintenance technology for asphalt pavements, specifically relating to a high-viscosity anti-skid thin-layer maintenance material and water-based organosilicon epoxy resin modified emulsified asphalt. Background Technology

[0002] Waterborne epoxy-modified emulsified asphalt micro-surfacing is a novel preventative maintenance technology that uses waterborne epoxy-modified emulsified asphalt as a binder. It combines the high adhesion of epoxy resin with the ease of application of emulsified asphalt, enabling rapid repair of early-stage asphalt pavement defects, improving pavement performance, enhancing appearance, and raising service quality. However, the epoxy resin commonly used in waterborne epoxy-modified emulsified asphalt is typically bisphenol A type epoxy resin, which is brittle and has poor weather resistance. This results in insufficient low-temperature flexibility and aging resistance, affecting the low-temperature crack resistance and durability of asphalt pavements. Furthermore, due to binder aging, the asphalt film is prone to peeling and surface abrasion after repeated vehicle loads during service, leading to severe degradation of skid resistance and increasing the risk of traffic accidents. This significantly limits its widespread application in preventative maintenance of asphalt pavements.

[0003] Existing technologies typically employ the addition of SBR latex and waterborne epoxy resin to modify emulsified asphalt in order to improve its low-temperature flexibility. However, the composition involves multiple components such as waterborne epoxy resin, SBR latex, and emulsified asphalt, resulting in complex compatibility and matching issues. Performance is affected by many factors, making the technology less targeted. Furthermore, aging resistance issues still objectively exist, impacting the anti-skid performance and durability of the pavement. Summary of the Invention

[0004] To address the problems of the prior art, the first objective of this invention is to provide a water-based organosilicon epoxy resin modified emulsified asphalt to improve the bonding performance, toughness, and weather resistance of the binder. The second objective is to provide a high-viscosity, anti-skid thin-layer maintenance material to improve the performance of the road surface and effectively extend its service life.

[0005] The present invention achieves its first objective through the following technical solution: a water-based organosilicon epoxy resin modified emulsified asphalt, characterized in that it is composed of the following components in parts by weight: 100 parts of 70# cationic emulsified asphalt with a solid content of 60%~65%, 2.5~15 parts of water-based organosilicon epoxy resin with a solid content of 55%~65%, and 1.2~10 parts of water-soluble modified amine curing agent.

[0006] Waterborne organosilicon epoxy resin is prepared according to the following steps:

[0007] 1) Bisphenol A epoxy resin is condensed with siloxanes containing alkoxy or hydroxyl groups to obtain SiOC bonded organosilicon modified epoxy resin.

[0008] 2) The organosilicon-modified epoxy resin was reacted with carboxylated dextran to obtain the desired product.

[0009] In the above scheme: the structural formula of the siloxane containing alkoxy or hydroxyl groups is: Where Y is RO or OH. Specifically, it is one of trimethylmethoxysilane, trimethylsilanol, triethylsilanol, dimethyldimethoxysilane, dimethyldiethoxysilane, or tert-butyldimethylsilanol.

[0010] The structural formula of carboxylated dextran is:

[0011]

[0012] In the above scheme, the specific operation of step 1) in the preparation of waterborne organosilicon epoxy resin is as follows: siloxane and bisphenol A epoxy resin are added to toluene in a molar ratio of 1:1~3, stirred at 40~60℃ until the mixture is completely transparent, then the catalyst tetrabutyl titanate is slowly added dropwise, and the reaction is carried out at 65~90℃ for 4~6 hours. The solvent is then recovered to obtain organosilicon modified epoxy resin.

[0013] In the above scheme, the amount of tetrabutyl titanate added is 0.25%-1% of the mass of bisphenol A epoxy resin.

[0014] In the above scheme, the specific operation of step 2) is as follows: add organosilicon modified epoxy resin to carboxylated dextran solution, stir and mix evenly, then add boron trifluoride diethyl ether as catalyst, react at 50-60℃ for 2-6 hours, add water after the reaction is completed, and continue stirring to obtain waterborne organosilicon epoxy resin.

[0015] In the above scheme, the mass ratio of the carboxylated dextran to the organosilicon-modified epoxy resin is 1:3.8-4.

[0016] In the above scheme, the amount of boron trifluoride diethyl ether added is 0.5%-2% of the mass of carboxylated dextran.

[0017] In the above scheme: the average molecular weight of the carboxylated dextran is 4000-9000 Da, the bisphenol A epoxy resin is at least one of epoxy E44 and epoxy E51, and the water-soluble modified amine curing agent has a solid content of 50.0% and an active hydrogen equivalent of 200-250 (solids).

[0018] The second objective of this invention is achieved as follows: a high-viscosity, anti-slip thin-layer curing material, characterized in that it is composed of the following raw materials in parts by weight: 100 parts of mineral aggregate, 9-13 parts of water-based organosilicon epoxy resin modified emulsified asphalt, 4-8 parts of water, and 0.5-2.5 parts of cement.

[0019] In the above scheme: the mineral material consists of three grades of mineral material: 0.075mm~2.36mm, 2.36mm~4.75mm, and 4.75mm~9.5mm, and mineral powder <0.075mm. The 0.075mm~2.36mm grade is limestone; the 2.36mm~4.75mm grade is at least one of limestone, basalt, and diabase; the 9.5mm~4.75mm grade is at least one of basalt and diabase; and the <0.075mm mineral powder is dry, loose, and non-agglomerated limestone mineral powder. The gradation range of the mineral material is shown in the table below.

[0020]

[0021] Note: Mineral powder is included in the aggregate gradation.

[0022] To ensure sufficient surface texture depth and improve skid resistance after preventative maintenance, the aggregate gradation design draws on the Bailey method. Based on a multi-stage interlocking dense gradation, the 2.36mm, 4.75mm, and 0.075mm sieve openings are adjusted to make the overall gradation coarser. The adjusted aggregate gradation range is shown in the table above. While the coarser aggregate results in better skid resistance, the larger voids in the aggregate skeleton necessitate higher viscosity and stronger bond strength in the cementitious material. Therefore, this invention, a water-based organosilicon epoxy resin modified emulsified asphalt, was designed.

[0023] In the above scheme: the cement is ordinary Portland cement P.O42.5.

[0024] This invention uses a waterborne organic epoxy resin, obtained through the synergistic modification of organosiloxane and carboxylated dextran, as a modifier for emulsified asphalt. By simultaneously introducing epoxy resin, organosilicon, and dextran functional components, it significantly improves the adhesion, low-temperature flexibility, wear resistance, and aging resistance of the emulsified asphalt. This, in turn, improves the road performance of the waterborne organic epoxy resin-modified emulsified asphalt high-viscosity anti-skid thin-layer maintenance material, specifically improving cohesion, high and low temperature performance, wear resistance, and durability. Applying this waterborne organic epoxy resin-modified emulsified asphalt high-viscosity anti-skid thin-layer maintenance material to preventive maintenance of asphalt pavements can significantly improve pavement performance and enhance road service quality. Simultaneously, it enables rapid construction at room temperature, reducing resource and energy consumption. This is a novel "green and low-carbon maintenance technology" with broad application prospects in highway maintenance engineering. Detailed Implementation

[0025] The present invention will be further described below with reference to embodiments.

[0026] Example 1

[0027] TLM1, a high-viscosity, anti-slip thin-layer maintenance material, includes the following steps:

[0028] 1) Add 20.0g of trimethylmethoxysilane ((CH3)3SiOCH3) and 80.0g of bisphenol A epoxy resin E51 sequentially to 100ml of toluene, stir at 45℃ until the mixture is completely transparent, then slowly add 0.4g of tetrabutyl titanate, react at 90℃ for 4h, recover the solvent, and the silicone-modified epoxy resin SE1 is obtained after the reaction is completed; Mix 20.0g of carboxylated dextran with an average molecular weight of 4000Da and 40.0g of water, stir to dissolve at room temperature, then add 80.0g of silicone-modified epoxy resin SE1, stir to mix evenly, add 0.2g of boron trifluoride ether, react at 50℃ for 6h, then add 25.0g of water, continue stirring for 0.5h, and the waterborne silicone epoxy resin WSE1 with a solid content of 60.6% is obtained.

[0029] 2) Mix 100 parts of cationic emulsified asphalt, 4.5 parts of waterborne silicone epoxy resin WSE1, and 3 parts of water-soluble modified amine curing agent in a certain proportion to obtain waterborne silicone epoxy resin modified emulsified asphalt WSEA1; wherein the cationic emulsified asphalt has an evaporation residue content of 61.0%, the base asphalt is CNOOC 70# asphalt, the emulsifier is a slow-cracking cationic emulsifier produced by Medveswick Company, model INDULIN MQ3; the water-soluble modified amine curing agent has a solid content of 50.0%, a pH of 9-10, a rotational viscosity of 630 mPa·s at 25℃, and an active hydrogen equivalent of 220 (solids).

[0030] 3) Weigh the following raw materials by mass: 100 parts mineral aggregate, consisting of 25 parts basalt of 4.75mm~9.5mm, 18 parts limestone of 2.36mm~4.75mm, 51 parts limestone of 0.075mm~2.36mm, and 6 parts limestone mineral powder of <0.075mm; 11 parts water-based organosilicon epoxy resin modified emulsified asphalt, 5 parts water, and 1 part P·O42.5 cement; mix high-viscosity anti-skid thin-layer mixture TLM1 according to the "Technical Guidelines for Micro-surfacing and Slurry Seal", "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011) and "Field Test Procedures for Highway Subgrade and Pavement" (JTG 3450-2019), and complete the mix design of high-viscosity anti-skid thin-layer mixture, test its road performance, and the results are shown in Table 1.

[0031] Following the steps above, the waterborne silicone epoxy resin WSE1 was replaced with a nonionic waterborne epoxy emulsion with a solid content of 60.6% and an epoxy value of 0.24; other raw materials and proportions were the same as in Example 1, forming Comparative Group 1.

[0032] Table 1. Road performance of high-viscosity, anti-skid thin-layer mixture TLM1

[0033]

[0034] Example 2:

[0035] TLM2, a high-viscosity, anti-slip thin-layer maintenance material, includes the following steps:

[0036] 1) Add 20.0g of trimethylmethoxysilane ((CH3)3SiOCH3) and 200g of bisphenol A epoxy resin E51 sequentially to 100ml of toluene, stir at 40℃ until the mixture is completely transparent, then slowly add 0.2g of tetrabutyl titanate, react at 65℃ for 6h, recover the solvent, and obtain organosilicon modified epoxy resin SE1 after the reaction is complete; mix 26.0g of carboxylated dextran with an average molecular weight of 5000Da and 40.0g of water, stir to dissolve at room temperature, then add 100g of organosilicon modified epoxy resin SE2, stir to mix evenly, add 0.13g of boron trifluoride ether, react at 55℃ for 3h, then add 34.0g of water, continue stirring for 0.5h, and obtain waterborne organosilicon epoxy resin WSE2 with a solid content of 63.0%.

[0037] 2) Mix 100 parts of cationic emulsified asphalt, 5.8 parts of waterborne silicone epoxy resin WSE2, and 2.7 parts of water-soluble modified amine curing agent in a uniform ratio to prepare waterborne silicone epoxy resin modified emulsified asphalt WSEA2; wherein the cationic emulsified asphalt has an evaporation residue content of 60.0%, the base asphalt is CNOOC 70# asphalt, the emulsifier is a slow-cracking cationic emulsifier produced by Medveswick Company, model INDULIN MQ3; the water-soluble modified amine curing agent has a solid content of 50%, a pH of 9-10, a rotational viscosity of 630 mPa·s at 25℃, and an active hydrogen equivalent of 220 (solids).

[0038] 3) Weigh the following raw materials by mass: 100 parts mineral aggregate, consisting of 27 parts diabase (4.75mm~9.5mm), 15 parts diabase (2.36mm~4.75mm), 52 parts limestone (0.075mm~2.36mm), and 6 parts limestone powder (<0.075mm); 11.5 parts water-based silicone epoxy resin modified emulsified asphalt, 5.5 parts water, and 1 part P·O42.5 cement; mix high-viscosity anti-skid thin-layer mixture TLM2 according to the "Technical Guidelines for Micro-surfacing and Slurry Seal", "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011), and "Field Test Procedures for Highway Subgrade and Pavement" (JTG 3450-2019), and complete the mix design of the high-viscosity anti-skid thin-layer mixture and test its road performance.

[0039] Following the steps above, the waterborne silicone epoxy resin WSE2 was replaced with a nonionic waterborne epoxy emulsion with a solid content of 63.0% and an epoxy value of 0.23. Other raw materials and proportions were the same as in Example 2, forming Comparative Group 2.

[0040] Table 2 Road performance of high-viscosity, anti-skid thin-layer mixture TLM2

[0041]

[0042] Example 3:

[0043] The high-viscosity, anti-slip thin-layer maintenance material TLM3 includes the following steps:

[0044] 1) 24.0g of dimethyldimethoxysilane ((CH3)2Si(OCH3)2) and 160.0g of bisphenol A epoxy resin E51 were added sequentially to 100ml of toluene and stirred at 60℃ until the mixture was completely transparent. Then, 2.4g of tetrabutyl titanate was slowly added dropwise and the mixture was reacted at 65℃ for 4.5h. The solvent was recovered, and the silicone-modified epoxy resin SE3 was obtained after the reaction was completed. 26.0g of carboxylated dextran with an average molecular weight of 6000Da and 40.0g of water were mixed and stirred at room temperature to dissolve. Then, 100g of silicone-modified epoxy resin SE3 was added and stirred until uniform. 0.26g of boron trifluoride ether was added and the mixture was reacted at 55℃ for 3h. Then, 28.0g of water was added and the mixture was stirred for another 0.5h to obtain waterborne silicone epoxy resin WSE3 with a solid content of 64.9%.

[0045] 2) Mix 100 parts of cationic emulsified asphalt, 6.2 parts of waterborne silicone epoxy resin WSE3, and 4.4 parts of water-soluble modified amine curing agent in a uniform ratio to prepare waterborne silicone epoxy resin modified emulsified asphalt WSEA3; wherein the cationic emulsified asphalt has an evaporation residue content of 62.0%, the base asphalt is CNOOC 70# asphalt, the emulsifier is a slow-cracking cationic emulsifier produced by Medveswick Company, model INDULIN MQ3; the water-soluble modified amine curing agent has a solid content of 50%, a pH of 9-10, a rotational viscosity of 630 mPa·s at 25℃, and an active hydrogen equivalent of 220 (solids).

[0046] 3) Weigh the following raw materials by mass: 100 parts mineral aggregate, consisting of 28 parts basalt of 4.75mm~9.5mm, 16 parts basalt of 2.36mm~4.75mm, 51 parts limestone of 0.075mm~2.36mm, and 5 parts limestone mineral powder of <0.075mm; 13 parts water-based organosilicon epoxy resin modified emulsified asphalt, 4.5 parts water, and 1.5 parts P·O42.5 cement; mix high-viscosity anti-skid thin-layer mixture TLM3 according to the "Technical Guidelines for Micro-surfacing and Slurry Seal", "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011) and "Field Test Procedures for Highway Subgrade and Pavement" (JTG 3450-2019), and complete the mix design of high-viscosity anti-skid thin-layer mixture and test its road performance.

[0047] Following the steps above, the waterborne silicone epoxy resin WSE3 was replaced with a nonionic waterborne epoxy emulsion with a solid content of 64.9% and an epoxy value of 0.22. Other raw materials and proportions were the same as in Example 3, forming Comparative Group 3.

[0048] Table 3 Road performance of high-viscosity, anti-skid thin-layer mixture TLM3

[0049]

[0050] Comparing the performance of high-viscosity anti-slip thin-layer mixtures TLM1~TLM3 with those of control groups 1~3, it can be seen that the introduction of organosilicon components in TLM1~TLM3 exhibits hydrophobic properties, can form bonding strength more quickly, has higher cohesion than the corresponding control groups, and has good water resistance. At the same time, it also improves wear resistance and aging resistance. The introduction of dextran synergistically strengthens the organosilicon and improves the low-temperature crack resistance.

[0051] Example 4:

[0052] TLM4, a high-viscosity, anti-slip thin-layer maintenance material, includes the following steps:

[0053] 100 parts of cationic emulsified asphalt, 15 parts of waterborne silicone epoxy resin WSE3, and 10 parts of water-soluble modified amine curing agent were mixed evenly in a certain proportion to prepare waterborne silicone epoxy resin modified emulsified asphalt WSEA4. The cationic emulsified asphalt had an evaporation residue content of 64.0%, the base asphalt was CNOOC 70# asphalt, and the emulsifier was a slow-cracking cationic emulsifier produced by Medveswick Company, model INDULIN MQ3. The water-soluble modified amine curing agent had a solid content of 50%, a pH of 9-10, a rotational viscosity of 630 mPa·s at 25℃, and an active hydrogen equivalent of 220 (solids).

[0054] Weigh the following raw materials by mass: 100 parts mineral aggregate, consisting of 28 parts diabase (4.75mm~9.5mm), 15 parts basalt (2.36mm~4.75mm), 52 parts limestone (0.075mm~2.36mm), and 5 parts limestone powder (<0.075mm); 9.5 parts water-based silicone epoxy resin modified emulsified asphalt, 6 parts water, and 0.5 parts P·O42.5 cement; mix high-viscosity anti-skid thin-layer mixture TLM4 according to the "Technical Guidelines for Micro-surfacing and Slurry Seal", "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011), and "Field Test Procedures for Highway Subgrade and Pavement" (JTG 3450-2019), and complete the mix design of the high-viscosity anti-skid thin-layer mixture and test its road performance.

[0055] Table 4 Road performance of high-viscosity, anti-skid thin-layer mixture TLM4

[0056]

[0057] Example 5:

[0058] TLM5, a high-viscosity, anti-slip thin-layer maintenance material, includes the following steps:

[0059] 100 parts of cationic emulsified asphalt, 2.5 parts of waterborne silicone epoxy resin WSE3, and 1.2 parts of water-soluble modified amine curing agent were mixed evenly in a certain proportion to prepare waterborne silicone epoxy resin modified emulsified asphalt WSEA5. The cationic emulsified asphalt had an evaporation residue content of 65.0%, the base asphalt was CNOOC 70# asphalt, and the emulsifier was a slow-cracking cationic emulsifier produced by Medveswick Company, model INDULIN MQ3. The water-soluble modified amine curing agent had a solid content of 50%, a pH of 9-10, a rotational viscosity of 630 mPa·s at 25℃, and an active hydrogen equivalent of 220 (solids).

[0060] Weigh the following raw materials by mass: 100 parts mineral aggregate, consisting of 28 parts diabase (4.75mm~9.5mm), 15 parts basalt (2.36mm~4.75mm), 51 parts limestone (0.075mm~2.36mm), and 6 parts limestone powder (<0.075mm); 10 parts water-based silicone epoxy resin modified emulsified asphalt, 8 parts water, and 2.5 parts P·O42.5 cement; mix high-viscosity anti-skid thin-layer mixture TLM5 according to the "Technical Guidelines for Micro-surfacing and Slurry Seal", "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011), and "Field Test Procedures for Highway Subgrade and Pavement" (JTG 3450-2019), and complete the mix design of the high-viscosity anti-skid thin-layer mixture and test its road performance.

[0061] Table 5 Road performance of high-viscosity, anti-skid thin-layer mixture TLM5

[0062]

[0063] Example 6:

[0064] TLM6, a high-viscosity, anti-slip thin-layer maintenance material, includes the following steps:

[0065] 1) Add 30.0g of triethylsilanol ((C2H5)3SiOH), 40.0g of bisphenol A epoxy resin E51, and 50g of bisphenol A epoxy resin E44 sequentially to 150ml of toluene. Stir at 50℃ until the mixture is completely transparent, then slowly add 1.0g of tetrabutyl titanate. React at 85-90℃ for 5h, recover the solvent, and obtain organosilicon modified epoxy resin SE4 after the reaction is complete. Mix 30.0g of carboxylated dextran with an average molecular weight of 7000Da and 60.0g of water, stir to dissolve at room temperature, then add 100g of organosilicon modified epoxy resin SE4, stir to mix evenly, add 0.25g of boron trifluoride ether, react at 50℃ for 6h, then add 45.0g of water, and continue stirring for 0.5h to obtain waterborne organosilicon epoxy resin WSE6 with a solid content of 55.3%.

[0066] 2) Mix 100 parts of cationic emulsified asphalt, 3.5 parts of waterborne silicone epoxy resin WSE4, and 1.5 parts of water-soluble modified amine curing agent in a uniform ratio to prepare waterborne silicone epoxy resin modified emulsified asphalt WSEA6; wherein the cationic emulsified asphalt has an evaporation residue content of 60.0%, the base asphalt is CNOOC 70# asphalt, the emulsifier is a slow-cracking cationic emulsifier produced by Medveswick Company, model INDULIN MQ3; the water-soluble modified amine curing agent has a solid content of 50.0%, a pH of 9-10, a rotational viscosity of 630 mPa·s at 25℃, and an active hydrogen equivalent of 220 (solids).

[0067] 3) Weigh the following raw materials by mass: 100 parts mineral aggregate, consisting of 25 parts basalt (4.75mm~9.5mm), 18 parts diabase (2.36mm~4.75mm), 51 parts limestone (0.075mm~2.36mm), and 6 parts limestone powder (less than 0.075mm); 11 parts water-based silicone epoxy resin modified emulsified asphalt, 5 parts water, and 1 part P·O42.5 cement; mix high-viscosity anti-skid thin-layer mixture TLM6 according to the "Technical Guidelines for Micro-surfacing and Slurry Seal", "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011), and "Field Test Procedures for Highway Subgrade and Pavement" (JTG 3450-2019), and complete the mix design of the high-viscosity anti-skid thin-layer mixture and test its road performance.

[0068] Table 6 Road performance of high-viscosity, anti-skid thin-layer mixture TLM6

[0069]

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-based organosilicon epoxy resin modified emulsified asphalt, characterized in that: It is composed of the following components in parts by weight: 100 parts of 70# cationic emulsified asphalt with a solid content of 60%~65%, 2.5~15 parts of water-based organosilicon epoxy resin with a solid content of 55%~65%, and 1.2~10 parts of water-soluble modified amine curing agent; Waterborne organosilicon epoxy resin is prepared according to the following steps: 1) Bisphenol A epoxy resin is condensed with siloxanes containing alkoxy or hydroxyl groups to obtain SiOC bonded organosilicon modified epoxy resin. 2) The organosilicon-modified epoxy resin is reacted with carboxylated dextran to obtain the following specific operation: the organosilicon-modified epoxy resin is added to the carboxylated dextran solution, stirred and mixed evenly, and then boron trifluoride diethyl ether catalyst is added. The reaction is carried out at 50-60℃ for 2-6 hours. After the reaction is completed, water is added and stirring is continued to obtain waterborne organosilicon epoxy resin.

2. The waterborne organosilicon epoxy resin modified emulsified asphalt according to claim 1, characterized in that, The specific operation of step 1) in the preparation of waterborne organosilicon epoxy resin is as follows: siloxane and bisphenol A epoxy resin are added to toluene in a molar ratio of 1:1~3, stirred at 40~60℃ until the mixture is completely transparent, then the catalyst tetrabutyl titanate is slowly added dropwise, and the reaction is carried out at 65~90℃ for 4~6 hours. The solvent is then recovered to obtain organosilicon modified epoxy resin.

3. The waterborne organosilicon epoxy resin modified emulsified asphalt according to claim 2, characterized in that: The amount of tetrabutyl titanate added is 0.25%-1% of the mass of bisphenol A epoxy resin.

4. The waterborne organosilicon epoxy resin modified emulsified asphalt according to claim 3, characterized in that: The mass ratio of the carboxylated dextran to the organosilicon-modified epoxy resin is 1:3.8-4.

5. The waterborne organosilicon epoxy resin modified emulsified asphalt according to claim 4, characterized in that: The amount of boron trifluoride diethyl ether added is 0.5%-2% of the mass of the carboxylated dextran.

6. The waterborne organosilicon epoxy resin modified emulsified asphalt according to claim 1, characterized in that: The carboxylated dextran has an average molecular weight of 4000-9000 Da, the bisphenol A epoxy resin is at least one of epoxy E44 and epoxy E51, and the water-soluble modified amine curing agent has an active hydrogen equivalent of 200-250.

7. A high-viscosity, anti-slip thin-layer maintenance material, characterized in that, It is composed of the following raw materials in parts by weight: 100 parts of mineral aggregate, 9-13 parts of water-based organosilicon epoxy resin modified emulsified asphalt as described in any one of claims 1-6, 4-8 parts of water, and 0.5-2.5 parts of cement.

8. The high-viscosity, anti-slip thin-layer curing material according to claim 7, characterized in that: The ore aggregate consists of three grades: 0.075mm~2.36mm, 2.36mm~4.75mm, and 4.75mm~9.5mm, and <0.075mm mineral powder. The 0.075mm~2.36mm aggregate is limestone; the 2.36mm~4.75mm aggregate is at least one of limestone, basalt, and diabase; the 9.5mm~4.75mm aggregate is at least one of basalt and diabase; and the <0.075mm mineral powder is dry, loose, and non-agglomerated limestone mineral powder. The ore aggregate gradation range is shown in the table below.

9. The high-viscosity, anti-slip thin-layer curing material according to claim 8, characterized in that: The cement is ordinary Portland cement P.O42.5.

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