KR100982686B1 - Drainage color asphalt composite and method for paving road using the composite - Google Patents

Abstract

PURPOSE: A permeable colored asphalt composition is provided to alleviate a hydroplaning phenomenon by improving a drainage function and coloring permeable asphalt, to reduce traffic accidents by improving the visibility of a road, and to prevent the separation of aggregates. CONSTITUTION: A permeable colored asphalt composition comprises: an aggregate mixture including 60-95 parts by weight of thick aggregates, 3-25 parts by weight of fine aggregates, and 2-15 parts by weight of filler; 1-10 parts by weight of an asphalt binder; and 0.5-10 parts by weight of a colored pigment based on 100.0 parts by weight of the aggregated mixture. The asphalt binder includes 60-95 weight% of asphalt emulsion and 5-40 weight% of a plastic modifier based on 100 weight% of the asphalt binder.

Description

Drainage color asphalt composite and method for paving road using the composite}

The present invention relates to an asphalt composition and a coating method using the same. More particularly, the present invention relates to a drainable color asphalt composition and a road pavement method using the same to improve visibility and improve drainage.

Frequent road traffic or old asphalt pavement causes severe wheel marks due to the flow of asphalt and significant surface damage such as cracks, which adversely affects the safety and comfort of the vehicle. In addition, when cracks occur on the pavement, rainwater or the like invades therein, and the invasive rainwater has a problem of promoting cracking of the roadbed.

Road pavement with severe surface damage should be renovated to secure traffic safety. Such road refurbishment is prohibited for traffic for a long time. It was a huge loss economically, and there was also the problem of treating asphalt that was cut and discarded for road repair work. Therefore, the need for a thin layer pavement method to form a thin layer on the surface of the asphalt is excellent in durability, excellent adhesion with the existing asphalt pavement, beautiful surface and satisfactory economic efficiency.

In the early stages of the introduction of color ascon, asphalt, which is a binder of general asphalt, was used as a binder for color ascon, but due to the dark color of asphalt close to black, color ascon of very dark color was produced. By doing so, they reached the limit of expressing the color of the color ascon.

Therefore, many studies have been conducted to solve this problem. However, the problem of color expression was overcome by using transparent or translucent asphalt or a transparent binder as a binder for color ascone, but due to the high cost of transparent or translucent asphalt or a transparent binder, manufacturing cost of color ascone and construction cost of color asphalt Has risen sharply, which is another realistic problem that adds to the consumer's burden. In addition, in order to manufacture colored asphalt, it must be colored by applying coloring pigment to transparent or translucent asphalt or transparent binder, so it cannot be manufactured by using existing equipment in ascon manufacturing apparatus using ordinary colored asphalt such as black, and Since the pigment should be added to the asphalt or binder by using the device to be colored, the manufacturing process is complicated, and there is a problem that a separate manufacturing device must be provided.

The present invention has been made to solve the above problems, the object of the present invention is to color the drainage asphalt and improve the drainage function in the rain to alleviate the water film phenomenon when driving the vehicle to increase the sliding resistance and reduce noise By improving the aesthetics of the road by the color of the asphalt pavement and improving the visibility of the road at night and in the rain, it is possible to reduce the occurrence of traffic accidents and to increase the adhesion between aggregates by using plastic modifiers. The present invention provides a drainage color asphalt composition and a road pavement method using the same, which prevent aggregate peeling and prevent port holes or cracks due to freeze-thawing and salting during driving or during winter.

The present invention is an aggregate mixture comprising 60 to 95 parts by weight of coarse aggregate, 3 to 25 parts by weight of fine aggregate, and 2 to 15 parts by weight of filler, and 1 to 10 parts by weight of asphalt binder and 0.5 colored pigment to 100 parts by weight of the aggregate mixture. To 10 parts by weight, the asphalt binder comprises 60 to 95% by weight of the asphalt emulsion and 5 to 40% by weight of the plastic modifier with respect to 100% by weight of the asphalt binder, and the plastic modifier is polyethylene 20 based on 100% by weight of the plastic modifier. A drainable color asphalt composition is provided comprising -50 wt%, 10-40 wt% polyol resin and 10-40 wt% plasticizer.

The colored pigment may be composed of one or more inorganic pigments selected from titanium oxide, red iron oxide, yellow iron oxide, chromium oxide (Cr ₂ O ₃ ), purple iron oxide, and black iron oxide.

The polyol resin is sorbitol, glycerol, polyethylene glycol, polypropylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, hexylene glycol, 1,4-butanediol and 1,2,6-hexatriol It may be made of one or more materials selected from.

The plasticizers are phthalic acid esters, trimellitic acid esters, phosphate esters, polyesters, fatty acid esters, chlorinated paraffins, triallyl isocyanurates and 4,4 '-(1,3-phenylene diisopropylidene) bisaniline It may be made of one or more materials selected from.

The plastic modifier may further include a reaction initiator for initiating the reaction of the polyethylene and the polyol resin, wherein the reaction initiator is preferably contained in an amount of 1 to 20% by weight based on 100% by weight of the plastic modifier.

The reaction initiator may be composed of at least one peroxide selected from benzoyl peroxide, acetyl peroxide, dilauryl peroxide, di-tert-butyl peroxide, cumyl hydroperoxide, hydrogen peroxide and potassium persulfate.

Preferably, the coarse aggregate includes 25 to 40 parts by weight of the first coarse aggregate passing through the 10 mm sieve and 35 to 50 parts by weight of the second coarse aggregate passing through the 19 mm sieve with respect to 100 parts by weight of the aggregate mixture.

In addition, the present invention, the step of chipping the surface layer of the asphalt surface layer using a road cutter, the step of compacting after laying the drainable color asphalt composition of claim 1 on top of the chipped asphalt surface layer and the drainage color asphalt It provides a road paving method using the drainage color asphalt composition according to claim 1, comprising curing the composition and drying the composition.

According to the present invention, by colorizing the drainage asphalt, the drainage function in the rain can be improved to alleviate the water film phenomenon when driving the vehicle to increase the sliding resistance, reduce the noise, and also the aesthetics of the road by the color of the asphalt pavement It is an advantage to reduce the occurrence of traffic accidents by improving the visibility of roads and improving visibility of nighttime and rainy weather.

In addition, by using a plastic modifier, it is possible to prevent the peeling of aggregates by increasing the adhesion between aggregates, and at the same time to prevent potholes or cracks due to freeze-thawing or salting during driving or winter.

Hereinafter, preferred embodiments of the present invention will be described in detail. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention will be described in the following embodiments. It is not limited.

The drainable color asphalt composition of the present invention comprises an aggregate mixture, an asphalt binder and a colored pigment, the aggregate mixture comprising coarse aggregate, fine aggregate and filler, and the asphalt binder comprising an asphalt emulsion and a plastic modifier. The coarse aggregate is preferably contained 60 to 95 parts by weight based on 100 parts by weight of the aggregate mixture, the fine aggregate is preferably contained 3 to 25 parts by weight based on 100 parts by weight of the aggregate mixture, 100 parts by weight of the filler aggregate mixture It is preferable to contain 2-15 weight part with respect to. The drainable color asphalt composition of the present invention contains 1 to 10 parts by weight of the asphalt binder with respect to 100 parts by weight of the aggregate mixture, and 0.5 to 10 parts by weight of the colored pigment with respect to 100 parts by weight of the aggregate mixture.

The asphalt binder may be prepared by adding 60 to 95% by weight of the asphalt emulsion and 5 to 40% by weight of the plastic modifier with respect to 100% by weight of the asphalt binder.

The drainage color asphalt, in which the drainage color asphalt composition of the present invention is applied to pavement, improves drainage in rainy weather, improves recognition of road marking lines by the color of the asphalt pavement, secures safety, reduces noise, Visibility can be improved and environmentally friendly.

The aggregate mixture includes 60 to 95 parts by weight of coarse aggregate, 3 to 25 parts by weight of fine aggregate and 2 to 15 parts by weight of filler.

In the present invention, the particles having a particle diameter of 5 mm or less are called fine aggregates, and those having a particle size larger than 5 mm are divided into coarse aggregates. The coarse aggregate is preferably contained 60 to 95 parts by weight based on the aggregate mixture, the fine aggregate is preferably contained 3 to 25 parts by weight based on the aggregate mixture.

The coarse aggregate used in the present invention is clean, hard and durable, and does not contain clay or organic substances, and it is preferable to use a suitable one for KS F 2357. The coarse aggregate is preferably contained 60 to 95 parts by weight based on 100 parts by weight of the aggregate mixture, the coarse aggregate 25 to 40 weight of the first coarse aggregate passing through a 10 mm sieve (100 parts by weight of the aggregate mixture) It is preferred to include 35 to 50 parts by weight of the second coarse aggregate passing through the portion and the 19 mm sieve. Hereinafter, unless specifically limited to the first coarse aggregate or the second coarse aggregate, the coarse aggregate is used to mean both the first coarse aggregate and the second coarse aggregate. 10 mm sieve means a sieve having holes of 10 mm size, and 19 mm sieve means a sieve having holes of 19 mm size. The coarse aggregate is preferably contained 60 to 95 parts by weight with respect to the aggregate mixture, when the content of the coarse aggregate is less than 60 parts by weight, the porosity of the pavement may decrease or there may be a deviation in the porosity, coarse aggregate When the content of more than 95 parts by weight may improve the porosity of the pavement, there is a fear that the durability is lowered.

As the aggregate aggregate used in the present invention, aggregates having a diameter of about 1 to 5 mm may be used, such as sand or finely crushed minerals or rocks, and serve to improve durability of pavement. The fine aggregate is preferably contained 3 to 25 parts by weight based on 100 parts by weight of the aggregate mixture. When the content of the fine aggregate is less than 3 parts by weight, there is a possibility that the bond strength with the coarse aggregate decreases due to a decrease in the mixing amount of the fine aggregate, thereby deteriorating the durability of the road surface layer, and when the content of the fine aggregate exceeds 25 parts by weight, Although the durability is excellent by improving the strength, there is a fear that the porosity is lowered and the drainage function in the rain is poor.

The filler is to improve the adhesion of the coarse aggregate and to reduce the content of the plastic modifier, it is preferable to use limestone powder or calcium carbonate that is suitable for KS F 3501 and contains 1% by weight or less of water. In addition, the filler is not necessarily limited to limestone powder or calcium carbonate, and various kinds of fillers may be used when maintaining the physical properties equivalent to or higher than those of the limestone powder or calcium carbonate according to the user's request or the manufacturer's needs. The filler is preferably contained 2 to 15 parts by weight based on 100 parts by weight of the aggregate mixture. When the content of the filler is less than 2 parts by weight, there is a concern that the strength of the pavement may be difficult due to the lack of adhesion between the coarse aggregates, and when the content of the filler exceeds 15 parts by weight, the surface porosity of the pavement may decrease. .

The drainable color asphalt composition includes a colored pigment, and the colored pigment is preferably contained 0.5 to 10 parts by weight based on 100 parts by weight of the aggregate mixture. The colored pigment is for imparting visibility and is preferably made of inorganic pigments such as titanium oxide (white), red iron oxide, yellow iron oxide, chromium oxide (Cr ₂ O ₃ ), purple iron oxide, and black iron oxide (carbon black). .

Asphalt binder used in the present invention is combined with the aggregate mixture to improve the porosity of the pavement surface layer, and serves to maintain durability by improving mechanical properties such as weather resistance. The asphalt binder is preferably contained 1 to 10 parts by weight with respect to 100 parts by weight of the aggregate mixture, when the content of the asphalt binder is less than 1 part by weight, there is a fear that the aggregate is dropped due to the reduction of the binding force and the aggregate mixture, When the content of the asphalt binder exceeds 10 parts by weight, the strength may be improved by the strong bonding force with the aggregate mixture, but there is a fear that the porosity of the surface layer of the pavement is lowered.

The asphalt binder is preferably prepared by adding 60 to 95% by weight of the asphalt emulsion and 5 to 40% by weight of the plastic modifier to 100% by weight of the asphalt binder. The asphalt binder can produce a variety of colors desired when mixed with the colored pigment.

When the content of the asphalt emulsion is less than 60% by weight, there is a concern that it is difficult to impart adhesion to the aggregate mixture, and when the content of the asphalt emulsion exceeds 95% by weight, the pavement may be due to the lack of the content of the plastic modifier. Asphalt may flow down.

The plastic modifier serves to improve the porosity and durability of the pavement by improving the flow resistance of the asphalt. When the content of the plastic modifier is less than 5% by weight, the workability decreases when the asphalt is poured due to the decrease in the fluid resistance of the asphalt, and when the content of the plastic modifier exceeds 40% by weight, the flow resistance of the asphalt is improved, but the porosity is improved. There is a risk of deterioration and poor durability.

The plastic modifier is preferably prepared by mixing 20 to 50 wt% polyethylene, 10 to 40 wt% polyol resin and 10 to 40 wt% plasticizer with respect to 100 wt% of the plastic modifier. The plastic modifier may further include 1 to 20% by weight of a reaction initiator that serves to initiate a reaction between the polyethylene and the polyol resin.

The polyethylene is milky white, preferably 20 to 50% by weight relative to the plastic modifier. When the content of polyethylene exceeds 50% by weight, the fluidity is improved to improve workability, but the manufacturing cost is high, and the polyethylene content is 20% by weight. If it is less than%, the fluidity is lowered, the moldability is lowered, and the mechanical properties are lowered.

The polyol resin serves to form a polymer having a ductility, and is a raw material capable of making a polymer compound having a urethane bond (-OCONH-) in the molecule, the polyol resin is sorbitol, glycerol, polyethylene glycol, polypropylene glycol, Propylene glycol, dipropylene glycol, 1,3-butylene glycol, hexylene glycol, 1,4-butanediol, 1,2,6-hexatriol and the like. The polyol resin is a resin that is widely used when making urethane rubber, synthetic fibers, adhesives, paints, urethane foam, or automobile bumpers as rubber-like elastomers. As the rubber use, an aliphatic polyester of polyetherdiol such as polyethylene glycol and polypropylene glycol or terminal diol is used as the diol. As a use of a urethane foam, it adds triisocyanate and makes it thermosetting in many cases. Recently, a high-speed, energy-saving molding method called RIM (Reaction Injection Molding) has been developed, and its use is expanding. The polyol resin is preferably contained 10 to 40% by weight with respect to the plastic modifier, when the content of the polyol resin exceeds 40% by weight, the ductility and elasticity is improved, but the material separation phenomenon is likely to occur, the content of the polyol resin If it is less than 10 weight%, ductility and elasticity will fall.

The plasticizer is a substance added to lower the melt viscosity of polyethylene to facilitate processing. The plasticizers are phthalic acid esters, trimellitic acid esters, phosphate esters, polyesters, aliphatic acid esters, chlorinated paraffins, triallyl isocyanurate (TAIC), 4,4 '-(1,3- Phenylene diisopropylidene) bisaniline and the like, but is not limited thereto. The plasticizer is preferably contained 10 to 40% by weight relative to the plastic modifier, when the content of the plasticizer exceeds 40% by weight, it is flexible and cold-resistant and workability is good, but the material separation phenomenon is easy to occur, the content of the plasticizer If it is less than 10% by weight, the material separation phenomenon is less, but the mechanical strength is lowered.

The reaction initiator serves to initiate a reaction between the polyethylene and the polyol resin, and it is preferable to use a peroxide that generates a radical by breaking a single bond easily by pyrolysis as the reaction initiator. The peroxide may include benzoyl peroxide, acetyl peroxide, dilauryl peroxide, di-tert-butyl peroxide, cumyl hydroperoxide, hydrogen peroxide, potassium persulfate, and the like. The reaction initiator is preferably contained 1 to 20% by weight relative to the plastic modifier, when the content of the reaction initiator exceeds 20% by weight, the reactivity is increased to increase the viscosity of the drainage color asphalt composition to decrease the workability, If the content of the reaction initiator is less than 1% by weight, the reactivity of the drainable color asphalt composition is lowered, resulting in material separation, and at the same time, the strength is also lowered.

Hereinafter, a road pavement method using the drainage color asphalt composition of the present invention will be described.

First, the existing asphalt surface is chipped by using a road cutter. Subsequently, the drainage collar asphalt composition is laid on top of the chipped asphalt surface layer and then compacted. Next, the drainage color asphalt composition is cured and then dried. Depending on the site conditions it may further comprise the step of curing after coating the surface finish or asphalt oil paint for asphalt.

Hereinafter, embodiments of the drainage color asphalt composition having excellent strength and durability according to the present invention will be described in more detail, and the present invention is not limited to the following examples.

≪ Example 1 >

An aggregate mixture including 80 parts by weight of coarse aggregate, 13 parts by weight of fine aggregate, and 7 parts by weight of filler was prepared based on 100 parts by weight of the aggregate mixture. The coarse aggregate was made of 35 parts by weight of the first coarse aggregate 10 mm sieve, and 45 parts by weight of the second coarse aggregate 19 mm sieve with respect to 100 parts by weight of the aggregate mixture. Calcium carbonate was used as the filler.

5 parts by weight of the asphalt binder and 2 parts by weight of red iron oxide, which is a colored pigment, were mixed with the aggregate mixture based on 100 parts by weight of the aggregate mixture to prepare a drainable color asphalt composition.

The asphalt binder is prepared by mixing 10% by weight of the plastic modifier with 90% by weight of the asphalt emulsion, and the plastic modifier is 35% by weight of polyethylene, 25% by weight of polyol resin, 25% by weight of plasticizer and the reaction with respect to 100% by weight of the plastic modifier. 15 weight percent of the initiator. The polyol resin used polypropylene glycol, the plasticizer used triallyl isocyanurate (TAIC), the reaction initiator used benzoyl peroxide.

Basic properties and permeability test were carried out using the specimen of drainage color asphalt prepared by pouring after pouring the drainage color asphalt composition while maintaining the temperature of 160 ± 5 ° C., and the results are shown in Table 1 and Table 2.

<Example 2>

An aggregate mixture including 80 parts by weight of coarse aggregate, 13 parts by weight of fine aggregate, and 7 parts by weight of filler was prepared based on 100 parts by weight of the aggregate mixture. The coarse aggregate was made of 35 parts by weight of the first coarse aggregate 10 mm sieve, and 45 parts by weight of the second coarse aggregate 19 mm sieve with respect to 100 parts by weight of the aggregate mixture. Calcium carbonate was used as the filler.

5 parts by weight of the asphalt binder and 2 parts by weight of red iron oxide, which is a colored pigment, were mixed with the aggregate mixture based on 100 parts by weight of the aggregate mixture to prepare a drainable color asphalt composition.

The asphalt binder is prepared by mixing 85% by weight of the asphalt emulsion and 15% by weight of the plastic modifier, wherein the plastic modifier is 40% by weight of polyethylene, 30% by weight of polyol resin, 20% by weight of plasticizer and the reaction with respect to 100% by weight of the plastic modifier. 10 weight percent of the initiator. The polyol resin used polypropylene glycol, the plasticizer used triallyl isocyanurate (TAIC), the reaction initiator used benzoyl peroxide.

Basic properties and permeability test were carried out using the specimen of drainage color asphalt prepared by pouring after pouring the drainage color asphalt composition while maintaining the temperature of 160 ± 5 ° C., and the results are shown in Table 1 and Table 2.

<Example 3>

An aggregate mixture including 80 parts by weight of coarse aggregate, 13 parts by weight of fine aggregate, and 7 parts by weight of filler was prepared based on 100 parts by weight of the aggregate mixture. The coarse aggregate was made of 35 parts by weight of the first coarse aggregate 10 mm sieve, and 45 parts by weight of the second coarse aggregate 19 mm sieve with respect to 100 parts by weight of the aggregate mixture. Calcium carbonate was used as the filler.

5 parts by weight of the asphalt binder and 2 parts by weight of red iron oxide, which is a colored pigment, were mixed with the aggregate mixture to 100 parts by weight of the aggregate mixture to prepare a drainable color asphalt composition.

The asphalt binder is prepared by mixing 85% by weight of the asphalt emulsion and 15% by weight of the plastic modifier, and the plastic modifier is 30% by weight of polyethylene, 30% by weight of polyol resin, 30% by weight of plasticizer and the reaction with respect to 100% by weight of the plastic modifier. 10 weight percent of the initiator. The polyol resin used polypropylene glycol, the plasticizer used triallyl isocyanurate (TAIC), the reaction initiator used benzoyl peroxide.

Basic properties and permeability test were carried out using the specimen of drainage color asphalt prepared by pouring after pouring the drainage color asphalt composition while maintaining the temperature of 160 ± 5 ° C., and the results are shown in Table 1 and Table 2.

Comparative Example

An aggregate mixture including 80 parts by weight of coarse aggregate, 13 parts by weight of fine aggregate, and 7 parts by weight of filler was prepared based on 100 parts by weight of the aggregate mixture. The coarse aggregate was made of 35 parts by weight of the first coarse aggregate 10 mm sieve, and 45 parts by weight of the second coarse aggregate 19 mm sieve with respect to 100 parts by weight of the aggregate mixture. Calcium carbonate was used as the filler.

5 parts by weight of the asphalt emulsion based on 100 parts by weight of the aggregate mixture was mixed with the aggregate mixture to prepare a drainable asphalt composition.

After pouring the drainable asphalt composition while maintaining the temperature of 160 ± 5 ℃ using a specimen of drainage asphalt prepared by compacting the basic physical properties and permeability test, the results are shown in Table 1 and Table 2.

<Test method>

In the basic property measurement, the Marshall test measures the density and porosity according to the permeable asphalt mixture of KS F 2385, and the flow value according to the resistivity test method for the plastic flow of the asphalt mixture using the Marshall tester of KS F 2337. Stability was measured by the apparent specific gravity and density measurement method of the compacted bitumen mixture using the surface dry saturation specimen of KS F 2446, and the cantabro loss rate was measured according to the Cantabros test method of Korea Institute of Construction Technology.

In the basic physical property measurement, the wheat tracking test measured the density, consolidation strain, final strain, and dynamic stability by the wheel tracking test method of bitumen pavement mixture of KS F 2374.

In addition, permeability test was tested according to the permeability test method of permeable asphalt mixture of KS F 2385.

The measurement results of the property test and permeability test of drainage asphalt are as shown in Table 1 below, and the measurement results of the permeation test are shown in Table 2 below.

Test Items Example 1 Example 2 Example 3 Comparative example Density (g / cm ² ) 2.48 2.49 2.48 2.50

Marshall test

Density (g / ㎠) 1.93 1.95 1.96 2.01 Porosity (%) 26.0 25.9 25.9 21.8 Stability (kgf) 595 592 589 539 Flow value (1/100 cm) 31 31 30 34 Cantabro Loss Rate (%) 10.1 10.4 10.9 15.2

Wheel tracking test

Specimen Density (g / ㎠) 1.99 2.02 2.00 2.25 Pure high density (%) 100.3 100.4 100.4 100.2 Consolidation strain (mm) 0.43 0.45 0.46 0.45 Final deformation (mm) 0.92 0.95 0.94 1.00 Dynamic Stability (times / mm) 4800 4800 4800 4500

As shown in Table 1 above, in the case of Examples 1 to 3 according to the present invention by adding an asphalt binder and a colored pigment to the aggregate mixture in which coarse aggregate, fine aggregate and filler are properly mixed, to prepare a drainable color asphalt composition In the case of Examples 1 to 3, not only the appearance of vivid red color was excellent, but also the excellent water permeability compared to the comparative example, as shown in the Marshall test results, it can be seen that the excellent water permeability. In addition, as shown in the wheel tracking test results, mechanical properties such as stability were found to be excellent.

Test Items Example 1 Example 2 Example 3 Comparative example K15 average (cm / sec) 0.512 0.509 0.502 0.495 Specimen total porosity (%) 22.5 22.7 23.0 21.1 Specimen continuous porosity (%) 16.5 16.8 17.0 14.2

As shown in Table 2 above, in the case of Examples 1 to 3 by adding an asphalt binder to the aggregate mixture in which the mixing amount according to the diameter of the coarse aggregate is properly adjusted to prepare drainage color asphalt, the pores formed larger than the comparative example It was confirmed that the permeability coefficient performance is excellent.

As described above, the drainable color asphalt according to the preferred embodiment of the present invention can be confirmed that the color of the specimen is not only excellent in aesthetics as well as its physical properties through the above embodiment.

As mentioned above, although preferred embodiment of this invention was described in detail, this invention is not limited to the said embodiment, A various deformation | transformation by a person of ordinary skill in the art within the scope of the technical idea of this invention is carried out. This is possible.

Claims (8)

An aggregate mixture comprising 60 to 95 parts by weight of coarse aggregate, 3 to 25 parts by weight of fine aggregate, and 2 to 15 parts by weight of filler, and 1 to 10 parts by weight of asphalt binder and 0.5 to 10 parts by weight of colored pigment, based on 100 parts by weight of the aggregate mixture. Wherein the asphalt binder comprises 60 to 95 wt% asphalt emulsion and 5 to 40 wt% plastic modifier based on 100 wt% asphalt binder, and the plastic modifier is 20 to 50 wt% polyethylene based on 100 wt% plastic modifier. , 10 to 40% by weight of polyol resin and 10 to 40% by weight of plasticizer. The method of claim 1, wherein the colored pigment, A drainable color asphalt composition comprising at least one inorganic pigment selected from titanium oxide, red iron oxide, yellow iron oxide, chromium oxide (Cr ₂ O ₃ ), purple iron oxide and black iron oxide. The method of claim 1, wherein the polyol resin, One selected from sorbitol, glycerol, polyethylene glycol, polypropylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, hexylene glycol, 1,4-butanediol and 1,2,6-hexatriol Drainage color asphalt composition, characterized in that consisting of the above materials. The method according to claim 1, wherein the plasticizer, 1 type selected from phthalic acid ester, trimellitic acid ester, phosphate ester, polyester, fatty acid ester, chlorinated paraffin, triallyl isocyanurate and 4,4 '-(1,3-phenylene diisopropylidene) bisaniline Drainage color asphalt composition, characterized in that consisting of the above materials. The method of claim 1, wherein the plastic modifier further comprises a reaction initiator to initiate the reaction of the polyethylene and the polyol resin, the reaction initiator is characterized in that 1 to 20% by weight relative to 100% by weight of the plastic modifier. Drainage colored asphalt composition. The method of claim 5, wherein the reaction initiator, A drainable color asphalt composition comprising at least one peroxide selected from benzoyl peroxide, acetyl peroxide, dilauryl peroxide, di-tert-butyl peroxide, cumyl hydroperoxide, hydrogen peroxide and potassium persulfate. delete Chipping the surface layer using a road cutter on the asphalt surface layer; Placing and then compacting the drainage collar asphalt composition of claim 1 on top of the chipped asphalt surface layer; And A road pavement method using the drainage color asphalt composition according to claim 1, comprising the step of curing the drainage color asphalt composition after curing.