Additive for colored asphalt pavement

Abstract

The invention belongs to the technical field of road traffic engineering, and particularly relates to an additive for a colored asphalt pavement. The additive for the colored asphalt pavement is prepared from the following specific raw material components: 5 to 10 parts of pigment, 3 to 7 parts of polymer modifier, 0.1 to 0.5 part of stabilizer, 5 to 15 parts of filling material, 1 to 3 parts of plasticizer, 0.5 to 1.5 parts of anti-shedding agent, 0.2 to 0.3 part of rheology modifier, 0.1 to 0.2 part of wetting dispersant, 0.1 to 0.2 part of cross-linking agent, 0.3 to 0.4 part of anti-skid additive, 0.1 to 0.2 part of waterproof agent and 0.2 to 0.4 part of temperature regulator. The polymer modifier is added into the preparation raw materials, and the polymer modifier is selected from the styrene-butadiene-styrene block copolymer or the ethylene-vinyl acetate copolymer, so that the flexibility and durability of the asphalt can be improved, the asphalt can better resist cracks caused by temperature change, and the binding power and wear resistance of a mixture are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of road traffic engineering, and specifically relates to an additive for colored asphalt pavement. Background Technique

[0002] Colored asphalt, also known as colored binder, is a binder obtained by imitating the components of petroleum asphalt and blending and modifying chemical materials such as petroleum resin and SBS modifier. This asphalt itself is not colored or colorless, but dark brown, and has been collectively referred to as colored asphalt in recent years due to market habits.

[0003] The paving of colored asphalt is mainly applicable to various slow traffic systems and landscape road pavings such as greenways, bicycle lanes, pedestrian paths, and landscape garden roads. Laying the road surface with colored asphalt concrete in the road has the following advantages: firstly, it can beautify the city, improve the road environment, and display the urban style effect, and is specifically applied to urban streets, squares, scenic spots, parks, and tourist landscape roads, etc.; secondly, the colored asphalt pavement has the function of guiding the traffic flow and making traffic management intuitive, and is specifically applied to distinguish different functional sections and lanes to improve the driver's recognition effect, increase the traffic capacity and traffic safety of the road; thirdly, the new colored asphalt pavement has a higher friction coefficient than the ordinary asphalt pavement, so it also has an anti-slip effect. When the driver brakes in an emergency, the colored road surface can prevent the vehicle from skidding. Under the action of different temperatures and external environments, its high-temperature stability, water damage resistance, and durability are very good, and there are no phenomena such as deformation and asphalt film peeling, and it has good adhesion to the base layer.

[0004] Additives are important raw material components in the production and processing of colored asphalt, but the existing additives still have the following technical problems in use:

[0005] During the later use of the existing additives, their anti-temperature effect is poor. As the temperature rises and falls repeatedly, the asphalt pavement is prone to cracking, and its stability is poor. The asphalt pavement is prone to fading under the influence of high temperature during use.

[0006] Therefore, a colored asphalt pavement additive is proposed to solve the above-mentioned problems. Summary of the Invention

[0007] The purpose of the present invention is to provide an additive for colored asphalt pavement to solve the problems raised in the above background technique.

[0008] To achieve the above object, the present invention provides the following technical solutions: An additive for colored asphalt pavement, and the specific raw material components of the additive for colored asphalt pavement include: 5-10 parts of pigment, 3-7 parts of polymer modifier, 0.1-0.5 part of stabilizer, 5-15 parts of filling material, 1-3 parts of plasticizer, 0.5-1.5 parts of anti-sloughing agent, 0.2-0.3 part of rheology improver, 0.1-0.2 part of wetting and dispersing agent, 0.1-0.2 part of crosslinking agent, 0.3-0.4 part of anti-slip additive, 0.1-0.2 part of waterproofing agent, and 0.2-0.4 part of temperature regulator;

[0009] The specific preparation method of the additive for colored asphalt pavement is as follows:

[0010] Step 1: Pour water and emulsifier into a container, stir evenly, preheat the polymer modifier to 130-140 °C, and pour the preheated polymer modifier into it, mix for 3-5 minutes until completely uniform, and control the ratio of added water: emulsifier: polymer modifier to be 8:1:2;

[0011] Step 2: Pour the pigment and plasticizer into the container, mix and stir evenly to form a pigment paste, and pour the mixed pigment paste into the mixture in Step 1, stir and mix evenly to ensure uniform distribution of the pigment;

[0012] Step 3: Continuously add the filling material thereto and stir for 5-8 minutes until the whole system is uniform;

[0013] Step 4: Finally add the stabilizer, anti-sloughing agent, rheology improver, wetting and dispersing agent, crosslinking agent, anti-slip additive, waterproofing agent and temperature regulator thereto, and continue to stir and mix for 10-12 minutes to make these auxiliary materials evenly distributed in the mixture, obtaining the additive for colored asphalt pavement.

[0014] Preferably, the pigment is selected from inorganic pigments or organic pigments.

[0015] Preferably, the polymer modifier is styrene-butadiene-styrene block copolymer or ethylene-vinyl acetate copolymer.

[0016] Preferably, the stabilizer includes antioxidant and ultraviolet absorber.

[0017] Preferably, the filling material is selected from limestone powder or other mineral powders.

[0018] Preferably, the rheology improver is selected from rubber powder; the wetting and dispersing agent is selected from surfactant substances; the crosslinking agent is selected from peroxide crosslinking agents; the anti-slip additive is selected from ceramic particles; the waterproofing agent is selected from silane waterproofing agents; the temperature regulator is selected from heat conduction regulators.

[0019] Preferably, the specific raw material components of the additive for colored asphalt pavement include: 5 parts of pigment, 3 parts of polymer modifier, 0.1 part of stabilizer, 5 parts of filler, 1 part of plasticizer, 0.5 part of anti - shedding agent, 0.2 part of rheology improver, 0.1 part of wetting and dispersing agent, 0.1 part of cross - linker, 0.3 part of anti - skid additive, 0.1 part of waterproofing agent, and 0.2 part of temperature regulator.

[0020] Preferably, the specific raw material components of the additive for colored asphalt pavement include: 7.5 parts of pigment, 5 parts of polymer modifier, 0.3 part of stabilizer, 10 parts of filler, 2 parts of plasticizer, 1 part of anti - shedding agent, 0.25 part of rheology improver, 0.15 part of wetting and dispersing agent, 0.15 part of cross - linker, 0.35 part of anti - skid additive, 0.15 part of waterproofing agent, and 0.3 part of temperature regulator.

[0021] Preferably, the specific raw material components of the additive for colored asphalt pavement include: 10 parts of pigment, 7 parts of polymer modifier, 0.5 part of stabilizer, 15 parts of filler, 3 parts of plasticizer, 1.5 part of anti - shedding agent, 0.3 part of rheology improver, 0.2 part of wetting and dispersing agent, 0.2 part of cross - linker, 0.4 part of anti - skid additive, 0.2 part of waterproofing agent, and 0.4 part of temperature regulator.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] In this application, a polymer modifier is added to the preparation raw materials, and the polymer modifier is selected from styrene - butadiene - styrene block copolymer or ethylene - vinyl acetate copolymer, which can improve the flexibility and durability of asphalt, making it more resistant to cracks caused by temperature changes, increasing the bonding strength and wear resistance of the mixture; and a stabilizer is correspondingly added. The stabilizer includes an antioxidant and an ultraviolet absorber, which can effectively prevent asphalt from becoming brittle due to oxidation, extend the service life, protect the color from the influence of ultraviolet radiation, and reduce the fading phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a flow chart of the production steps of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0027] Please refer to Figure 1 , the present invention provides a technical solution:

[0028] An additive for colored asphalt pavement, and the specific raw material components of the additive for colored asphalt pavement include: 5 - 10 parts of pigment, 3 - 7 parts of polymer modifier, 0.1 - 0.5 parts of stabilizer, 5 - 15 parts of filler, 1 - 3 parts of plasticizer, 0.5 - 1.5 parts of anti - shedding agent, 0.2 - 0.3 parts of rheology improver, 0.1 - 0.2 parts of wetting and dispersing agent, 0.1 - 0.2 parts of cross - linker, 0.3 - 0.4 parts of anti - skid additive, 0.1 - 0.2 parts of waterproofing agent, and 0.2 - 0.4 parts of temperature regulator;

[0029] The specific preparation method of the additive for colored asphalt pavement is as follows:

[0030] Step 1: Pour water and emulsifier into a container, stir well. Preheat the polymer modifier to 130 - 140 °C, and pour the preheated polymer modifier into it. Mix for 3 - 5 minutes until completely uniform, and control the ratio of added water: emulsifier: polymer modifier to be 8:1:2;

[0031] Step 2: Pour the pigment and plasticizer into the inside of the container, mix and stir evenly to form a pigment slurry, and pour the mixed pigment slurry into the mixture of Step 1, stir and mix evenly to ensure that the pigment is evenly distributed;

[0032] Step 3: Continuously add the filler thereto, and stir for 5 - 8 minutes until the whole system is uniform;

[0033] Step 4: Finally add the stabilizer, anti - shedding agent, rheology improver, wetting and dispersing agent, cross - linker, anti - skid additive, waterproofing agent, and temperature regulator thereto, and continue to stir and mix for 10 - 12 minutes to make these auxiliary materials evenly distributed in the mixture, obtaining the additive for colored asphalt pavement.

[0034] The plasticizer is selected from styrene-butadiene copolymer (SBS) or polyacrylate (APP). By changing the physical and chemical structure of asphalt, the plasticizer can improve the flexibility and plasticity of asphalt, enabling it to exhibit better performance under various environments and conditions. By reducing the viscosity of asphalt, the plasticizer can enhance the shear strength and stability of the asphalt mixture, thereby extending its service life.

[0035] The anti-stripping agent is monolauryl phosphate, which tightly binds the aggregate and asphalt to improve adhesion.

[0036] The emulsifier is a surfactant, mainly used to disperse asphalt in water to form emulsified asphalt. The emulsifier reduces the surface tension of asphalt, enabling it to be stably dispersed in water to form an oil-in-water (O / W) emulsion.

[0037] The pigment is selected from inorganic pigments or organic pigments. Inorganic pigments such as iron oxide are used to provide colors such as red, yellow, and brown, and have good light resistance and weather resistance, making them suitable for long-term outdoor use. Although organic pigments are brightly colored, they have poor weather resistance and are generally not recommended for colored asphalt that is long-term exposed to outdoor environments.

[0038] The polymer modifier is styrene-butadiene-styrene block copolymer or ethylene-vinyl acetate copolymer; styrene-butadiene-styrene block copolymer can improve the flexibility and durability of asphalt, making it more resistant to cracks caused by temperature changes; ethylene-vinyl acetate copolymer can increase the cohesion and abrasion resistance of the mixture.

[0039] The stabilizer includes an antioxidant and an ultraviolet absorber; the antioxidant can prevent asphalt from becoming brittle due to oxidation and extend its service life; the ultraviolet absorber can protect the color from the influence of ultraviolet radiation and reduce fading.

[0040] The filler is selected from limestone powder or other mineral powders, which are used as fillers to improve the workability of the mixture and help evenly distribute the pigment.

[0041] The plasticizer can improve the adhesion between the aggregate and asphalt, preventing the stripping problem caused by water intrusion; the anti-stripping agent can improve the adhesion between the aggregate and asphalt, preventing the stripping problem caused by water intrusion.

[0042] The rheology improver is selected as rubber powder to improve the workability of the mixture and make it easier to lay and compact; the wetting dispersant is selected as a surfactant substance to help the pigments disperse better in the matrix and prevent the pigment particles from aggregating, thus ensuring color consistency and uniformity; the crosslinking agent is selected as a peroxide crosslinking agent to enhance the chemical bonding between the polymer modifier and the asphalt and improve the durability and strength of the final product; the anti-slip additive is selected as ceramic particles to increase the friction coefficient of the road surface and improve driving safety, especially important under wet conditions such as rain; the waterproofing agent is selected as a silane waterproofing agent to enhance the waterproof performance of the asphalt mixture and prevent water from penetrating into the structure and causing damage; the temperature regulator is selected as a heat conduction regulator to help control the temperature change during construction and avoid material decomposition caused by excessive temperature or affecting construction quality due to too low temperature.

[0043] The specific raw material components of the additive for colored asphalt pavement include: 5 parts of pigments, 3 parts of polymer modifier, 0.1 part of stabilizer, 5 parts of filler, 1 part of plasticizer, 0.5 part of anti-abrasion agent, 0.2 part of rheology improver, 0.1 part of wetting dispersant, 0.1 part of crosslinking agent, 0.3 part of anti-slip additive, 0.1 part of waterproofing agent, and 0.2 part of temperature regulator.

[0044] The specific raw material components of the additive for colored asphalt pavement include: 7.5 parts of pigments, 5 parts of polymer modifier, 0.3 part of stabilizer, 10 parts of filler, 2 parts of plasticizer, 1 part of anti-abrasion agent, 0.25 part of rheology improver, 0.15 part of wetting dispersant, 0.15 part of crosslinking agent, 0.35 part of anti-slip additive, 0.15 part of waterproofing agent, and 0.3 part of temperature regulator.

[0045] The specific raw material components of the additive for colored asphalt pavement include: 10 parts of pigments, 7 parts of polymer modifier, 0.5 part of stabilizer, 15 parts of filler, 3 parts of plasticizer, 1.5 part of anti-abrasion agent, 0.3 part of rheology improver, 0.2 part of wetting dispersant, 0.2 part of crosslinking agent, 0.4 part of anti-slip additive, 0.2 part of waterproofing agent, and 0.4 part of temperature regulator.

[0046] During the preparation of the additive for colored asphalt pavement, quality inspection is a key step to ensure the performance and service life of the final product. In addition to the basic physical and chemical properties (such as color depth, softening point, ductility, etc.), more indicators need to be detected to comprehensively evaluate the quality and applicability of the product:

[0047] Color stability: Evaluate the durability of pigments under environmental factors such as ultraviolet rays, high temperature, and humidity;

[0048] Test method: Use an artificial aging test chamber to simulate long-term lighting and climate conditions, measure the color change of the sample before and after aging, and judge whether the color has significantly faded.

[0049] Experimental Group 1 Experimental Group 2 Experimental Group 3 Ultraviolet <![CDATA[0.5W / m 2 > <![CDATA[0.8W / m 2 > <![CDATA[1.2W / m 2 > Temperature 60℃ 70℃ 85℃ Humidity 85％ 90％ 95％ Measurement Time 48 hours 48 hours 48 hours Colored Asphalt Condition No Fading No Fading No Fading

[0050] Anti-stripping performance: Evaluate the adhesion between asphalt and aggregates, especially the stripping tendency under wet or high-temperature conditions;

[0051] Test methods: Boiling water test: Put the mixture into boiling water for a certain period of time and observe whether there is stripping; Freeze-thaw cycle test: Simulate the environment of alternating low temperatures in winter and high temperatures in summer to test the durability of the mixture;

[0052] Experimental Group 1 Experimental Group 2 Experimental Group 3 Boiling Time in Boiling Water 2 hours 4 hours 6 hours Low Temperature Environment -5℃ -12℃ -15℃ High Temperature Environment 30℃ 40℃ 50℃ Peeling Condition No Peeling Phenomenon No Peeling Phenomenon No Peeling Phenomenon

[0053] Wear resistance: Evaluate the anti-wear ability of the colored asphalt surface under vehicle driving or pedestrian trampling;

[0054] Test method: Use an abrasion testing machine to conduct friction tests on samples and measure the mass loss or surface damage degree after abrasion.

[0055]

[0056]

[0057] Skid resistance performance: Evaluate the friction coefficient of the road surface to ensure the safety of vehicle driving and pedestrians;

[0058] Test method: Use a pendulum friction coefficient tester to measure the dynamic friction coefficient of the road surface and test the skid resistance performance under different humidity conditions.

[0059] Experimental Group 1 Experimental Group 2 Experimental Group 3 Friction Coefficient SFC 72 73 76

[0060] Weather resistance: Evaluate the performance of materials under extreme climate conditions, such as high temperature, low temperature, and ultraviolet radiation;

[0061] Test methods: High-temperature stability test: Place the sample in a high-temperature environment (such as 60°C - 70°C) and observe its deformation or flow; Low-temperature brittleness test: Place the sample in a low-temperature environment (such as -10°C to -20°C) and test its cracking tendency; Ultraviolet aging test: Simulate long-term sunlight exposure through UV lamp irradiation and observe the changes in color and mechanical properties;

[0062]

[0063] Example 1:

[0064] The specific preparation method of the additive for the colored asphalt pavement is as follows:

[0065] Step 1: Pour water and emulsifier into a container, stir well, preheat the polymer modifier to 130 °C, and pour the preheated polymer modifier into it. Mix for 3 minutes until completely uniform, and control the ratio of added water: emulsifier: polymer modifier to be 8:1:2;

[0066] Step 2: Pour the pigment and plasticizer into the interior of the container, mix and stir well to form a pigment paste, and pour the mixed pigment paste into the mixture of Step 1, stir and mix well to ensure uniform distribution of the pigment;

[0067] Step 3: Continuously add the filler to it and stir for 5 minutes until the whole system is uniform;

[0068] Step 4: Finally add the stabilizer, anti-shedding agent, rheology improver, wetting dispersant, crosslinking agent, anti-slip additive, waterproofing agent and temperature regulator to it, and continue to stir and mix for 10 minutes to make these auxiliary materials uniformly distributed in the mixture to obtain an additive for colored asphalt pavement;

[0069] Example 2:

[0070] The specific preparation method of this additive for colored asphalt pavement is as follows:

[0071] Step 1: Pour water and emulsifier into a container, stir well, preheat the polymer modifier to 135 °C, and pour the preheated polymer modifier into it. Mix for 4 minutes until completely uniform, and control the ratio of added water: emulsifier: polymer modifier to be 8:1:2;

[0072] Step 2: Pour the pigment and plasticizer into the interior of the container, mix and stir well to form a pigment paste, and pour the mixed pigment paste into the mixture of Step 1, stir and mix well to ensure uniform distribution of the pigment;

[0073] Step 3: Continuously add the filler to it and stir for 6.5 minutes until the whole system is uniform;

[0074] Step 4: Finally add the stabilizer, anti-shedding agent, rheology improver, wetting dispersant, crosslinking agent, anti-slip additive, waterproofing agent and temperature regulator to it, and continue to stir and mix for 11 minutes to make these auxiliary materials uniformly distributed in the mixture to obtain an additive for colored asphalt pavement;

[0075] Example 3:

[0076] The specific preparation method of this additive for colored asphalt pavement is as follows:

[0077] Step 1: Pour water and emulsifier into a container, stir well, preheat the polymer modifier to 140 °C, and pour the preheated polymer modifier into it. Mix for 5 minutes until completely uniform. Control the ratio of added water: emulsifier: polymer modifier to be 8:1:2;

[0078] Step 2: Pour the pigment and plasticizer into the interior of the container, mix and stir well to form a pigment paste, and pour the mixed pigment paste into the mixture of Step 1, stir and mix evenly to ensure uniform distribution of the pigment;

[0079] Step 3: Continuously add filler materials thereto and stir for 8 minutes until the whole system is uniform;

[0080] Step 4: Finally add stabilizer, anti-shedding agent, rheology improver, wetting dispersant, crosslinking agent, anti-slip additive, waterproofing agent and temperature regulator thereto, and continue to stir and mix for 12 minutes to make these auxiliary materials evenly distributed in the mixture, obtaining an additive for colored asphalt pavement.

[0081] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

[0082] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An additive for colored asphalt pavement, characterized in that: The specific raw material components of the additive for colored asphalt pavement include: 5-10 parts of pigment, 3-7 parts of polymer modifier, 0.1-0.5 parts of stabilizer, 5-15 parts of filler, 1-3 parts of plasticizer, 0.5-1.5 parts of anti-shedding agent, 0.2-0.3 parts of rheology modifier, 0.1-0.2 parts of wetting dispersant, 0.1-0.2 parts of cross-linking agent, 0.3-0.4 parts of anti-skid additive, 0.1-0.2 parts of waterproofing agent and 0.2-0.4 parts of temperature regulator; The specific preparation method of the colored asphalt pavement additive is as follows: Step 1: Pour water and emulsifier into a container, stir well, preheat the polymer modifier to 130-140 degrees Celsius, and pour the preheated polymer modifier into it, mix for 3-5 minutes until it is completely uniform, and control the ratio of added water: emulsifier: polymer modifier to be 8:1:2; Step 2: Pour the pigment and plasticizer into the container, mix and stir evenly to form a pigment slurry, and pour the mixed pigment slurry into the mixture of step 1, stir and mix evenly to ensure that the pigment is evenly distributed; Step 3: Continue to add filling materials and stir for 5-8 minutes until the whole system is uniform; Step 4: Finally add stabilizer, anti-shedding agent, rheology modifier, wetting dispersant, cross-linking agent, anti-skid additive, waterproofing agent and temperature regulator, and continue stirring and mixing for 10-12 minutes to evenly distribute these auxiliary materials in the mixture to obtain additives for colored asphalt pavement.

2. The additive for colored asphalt pavement according to claim 1, characterized in that: The pigment is selected from inorganic pigments or organic pigments.

3. The additive for colored asphalt pavement according to claim 1, characterized in that: The polymer modifier is a styrene-butadiene-styrene block copolymer or an ethylene-vinyl acetate copolymer.

4. The additive for colored asphalt pavement according to claim 1, characterized in that: The stabilizer includes an antioxidant and an ultraviolet absorber.

5. The additive for colored asphalt pavement according to claim 1, characterized in that: The filling material is limestone powder or other mineral powder.

6. The additive for colored asphalt pavement according to claim 1, characterized in that: The rheology modifier is rubber powder; the wetting dispersant is surfactant; the cross-linking agent is peroxide cross-linking agent; the anti-slip additive is ceramic particles; the waterproofing agent is silane waterproofing agent; and the temperature regulator is heat conduction regulator.

7. The additive for colored asphalt pavement according to claim 1, characterized in that: The specific raw material components of the additive for colored asphalt pavement include: 5 parts of pigment, 3 parts of polymer modifier, 0.1 parts of stabilizer, 5 parts of filling material, 1 part of plasticizer, 0.5 parts of anti-shedding agent, 0.2 parts of rheology modifier, 0.1 parts of wetting dispersant, 0.1 parts of cross-linking agent, 0.3 parts of anti-skid additive, 0.1 parts of waterproofing agent and 0.2 parts of temperature regulator.

8. The additive for colored asphalt pavement according to claim 1, characterized in that: The specific raw material components of the additive for colored asphalt pavement include: 7.5 parts of pigment, 5 parts of polymer modifier, 0.3 parts of stabilizer, 10 parts of filling material, 2 parts of plasticizer, 1 part of anti-shedding agent, 0.25 parts of rheology modifier, 0.15 parts of wetting dispersant, 0.15 parts of cross-linking agent, 0.35 parts of anti-skid additive, 0.15 parts of waterproofing agent and 0.3 parts of temperature regulator.

9. The additive for colored asphalt pavement according to claim 1, characterized in that: The specific raw material components of the additive for colored asphalt pavement include: 10 parts of pigment, 7 parts of polymer modifier, 0.5 parts of stabilizer, 15 parts of filling material, 3 parts of plasticizer, 1.5 parts of anti-shedding agent, 0.3 parts of rheology modifier, 0.2 parts of wetting dispersant, 0.2 parts of cross-linking agent, 0.4 parts of anti-skid additive, 0.2 parts of waterproofing agent and 0.4 parts of temperature regulator.

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