KR101999964B1 - Modified-Asphalt Concrete Composition Using Stylene Isoprene Stylene and Recycle Rubber Powder and Constructing Methods Using Thereof - Google Patents

Abstract

Provided by the present invention are: a modified asphalt concrete composition which includes 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of petroleum resin, 3 to 15 parts by weight of recycled rubber powder, 5 to 30 parts by weight of a modifier, 1 to 20 parts by weight of a performance improving agent, 1 to 10 parts by weight of a rubber anti-aging agent, 2 to 15 parts by weight of a compatibilizer, 3 to 20 parts by weight of nanoceramic particles, 1 to 10 parts by weight of a flow inhibitor, 0.1 to 5 parts by weight of antioxidant, 3 to 20 parts by weight of an adhesion promoter and 1 to 10 parts by weight of stabilizer based on 100 parts by weight of asphalt; and a construction method using the same. According to the present invention, the modified asphalt concrete composition, specifically, the modified asphalt concrete composition using SIS and recycled rubber powder has effects of providing high cohesion and high bonding force and thus, providing excellent durability, preventing plastic deformation, aging and/or peeling from occurring easily, preventing infiltration water and portholes, and facilitating a placing process at a low cost.

Description

Modified-Asphalt Concrete Composition Using Stylene Isoprene Stylene and Recycle Rubber Powder and Constructing Methods Using Thereof}

The present invention relates to a modified asphalt concrete composition, and more particularly, to a modified asphalt concrete composition using SIS and recycled rubber powder to improve the physical properties of asphalt concrete, and a construction method using the same.

In general, asphalt is a black or dark brown solid or semi-solid thermoplastic material composed of thousands of high molecular hydrocarbons (C-H) containing organic compounds and trace inorganic compounds, and has a characteristic of gradually changing to a liquid phase when heated.

The asphalt is divided into such types as natural asphalt, petroleum-based asphalt and paving tar, and straight asphalt and emulsified asphalt are widely known.

In addition, the asphalt is used as a bonding material or an adhesive material because it is excellent in adhesion and adhesion to the mineral material, and is also used as a waterproofing material because it is not dissolved in water and is impermeable to water, and the viscosity can be changed according to the purpose of use. The scope of application is diverse and it is used for various purposes such as road pavement, waterproofing, general industry, agriculture.

Asphalt used for road pavement is petroleum-based asphalt, and straight asphalt having excellent adhesiveness, extensibility, and water absorption is generally used.

However, straight asphalt has a low softening point, high temperature sensitivity, poor weather resistance, and weak cohesion, and thus has been used by adding various modifiers to suit the characteristics of the place where it is used.

In general, asphalt modifiers include rubber, thermoplastic, thermosetting, hydrocarbon, filler, fiber, antioxidant, reducing agent, and the like, natural rubber, styrene butadiene rubber (SBR), and waste tires. (Crumb Rubber) is used.Styrene Butadiene Styrene (SBS), Ethylenevinylacetate (EVA), Polyethylene (PE), Polypropylene (PP), Polyvinyl Chloride (PVC), Polyethylene Terephthalate (PET) are used for thermoplastic resin series. In the thermosetting resin series, epoxy resins, urethane resins, acrylic resins, phenol resins, and petroleum resins are used. In the hydrocarbon series, natural asphalt and gilsonite are used.

However, the asphalt modifiers developed so far have problems with pavement cracking and plastic deformation, which appear to decrease the resistance to low temperature cracking and fatigue cracking after time due to large temperature differences in four seasons. Problems such as asphalt oxidation caused by exposure to sunlight, aggregate desorption due to weakening of adhesive strength, etc., and in addition, the field-type modifier (Plant-mix type) is not easy to secure uniform quality, and is pre-mixed. mixtype) Modified asphalt has difficulty in preservation because it is not easy to uniformly mix the components and each component such as the modified material and the asphalt depends on the physical bonding and has poor storage properties.

In particular, since 2000, modified concrete that has improved the performance of concrete with fast-hardening cement and polymer has been developed, and has been widely used as a repair material for concrete road structures due to its short curing time, high permeability and freeze-thawing resistance.

However, since the modified concrete contains a large amount of latex, the cost is high, and the heat reflection rate is high, thus preventing the early winter freezing effect compared to conventional asphalt concrete, and the heat absorption rate is low, so the outside air temperature change (daily crossing, four seasons) ), There is a problem that cracks, surface peeling, dropouts (potholes), etc. occur due to temperature stress.

In addition, some of the bridges and special zones are severely congested and traffic conditions with high rates of heavy vehicles are difficult to withstand the general modified asphalt (PMA) pavement.

Therefore, very strong asphalt pavement should be constructed thickly, but general asphalt pavement should not only be thick but also have strong elasticity, toughness, and tensile strength.

In general, a steel box girder bridge as well as a concrete bridge is accompanied by a waterproofing process to prevent deterioration of the lower layer.

However, there is a problem that the waterproof layer (such as coating or coating) is expensive without structural performance.

Therefore, as mentioned above, if the mixture with excellent elasticity and the mixture with toughness, tensile strength and high adhesion are applied, it can be an asphalt pavement that exhibits both structural performance and durability, and thus can withstand excessive traffic loads. As well as the asphalt pavement with excellent durability features, as well as easy construction, it is possible to open the traffic quickly.

On the other hand, as a conventional technology related to the above-described technology disclosed in the Republic of Korea Patent Publication No. 10-2016-0106070 polymer modified asphalt concrete composition and a method for producing a polymer modified asphalt concrete using the same.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned problems, and is intended to provide a modified asphalt concrete composition that is durable and can prevent infiltration water and potholes without easily causing plastic deformation, aging and / or peeling. .

The present invention

Based on 100 parts by weight of asphalt,

1 to 25 parts by weight of styrene isoprene styrene;

1 to 25 parts by weight of petroleum resin;

3 to 15 parts by weight of recycled rubber powder;

5 to 30 parts by weight of a modifier;

1 to 20 parts by weight of performance improving agent;

1 to 10 parts by weight of the rubber anti-aging agent;

2 to 15 parts by weight of a compatibilizer;

3 to 20 parts by weight of nanoceramic particles;

1 to 10 parts by weight of a flow inhibitor;

0.1 to 5 parts by weight of antioxidant;

3 to 20 parts by weight of adhesion promoter; And

It provides a modified asphalt concrete composition comprising 1 to 10 parts by weight of a stabilizer.

In addition, the present invention

Arranging the object surface to be constructed;

Based on 100 parts by weight of asphalt, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of petroleum resin, 3 to 15 parts by weight of reclaimed rubber powder, 5 to 30 parts by weight of modifier, 1 to 20 parts by weight of performance improving agent, rubber aging 1 to 10 parts by weight of inhibitor, 2 to 15 parts by weight of compatibilizer, 3 to 20 parts by weight of nanoceramic particles, 1 to 10 parts by weight of flow inhibitor, 0.1 to 5 parts by weight of antioxidant, 3 to 20 parts by weight of adhesion promoter, and stabilizer 1 A mixing step of mixing the modified asphalt concrete composition including 10 parts by weight;

A casting step of transferring the mixed modified asphalt concrete composition to a moving unit to pour the mixed modified asphalt concrete composition on the target surface;

A compacting step after the pouring step is finished; And

It provides a method of construction of a modified asphalt concrete composition comprising a curing step of curing after the compaction step is completed.

Modified asphalt concrete composition according to the present invention, specifically modified SIS and asphalt concrete composition using recycled rubber powder has a high cohesive force and a high binding force, and have good durability, plastic deformation, aging and / or peeling does not easily occur It is effective in preventing infiltration water and port holes and easily performing the pouring process at low cost.

Hereinafter, the present invention will be described in detail.

In one aspect, the present invention is based on 100 parts by weight of asphalt, styrene isoprene styrene 1 to 25 parts by weight; 1 to 25 parts by weight of petroleum resin; 3 to 15 parts by weight of recycled rubber powder; 5 to 30 parts by weight of a modifier; 1 to 20 parts by weight of performance improving agent; 1 to 10 parts by weight of the rubber anti-aging agent; 2 to 15 parts by weight of a compatibilizer; 3 to 20 parts by weight of nanoceramic particles; 1 to 10 parts by weight of a flow inhibitor; 0.1 to 5 parts by weight of antioxidant; 3 to 20 parts by weight of adhesion promoter; And it provides a modified asphalt concrete composition comprising 1 to 10 parts by weight of a stabilizer.

In another aspect, the present invention comprises the step of arranging the target surface to be constructed; Based on 100 parts by weight of asphalt, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of petroleum resin, 3 to 15 parts by weight of reclaimed rubber powder, 5 to 30 parts by weight of modifier, 1 to 20 parts by weight of performance improving agent, rubber aging 1 to 10 parts by weight of inhibitor, 2 to 15 parts by weight of compatibilizer, 3 to 20 parts by weight of nanoceramic particles, 1 to 10 parts by weight of flow inhibitor, 0.1 to 5 parts by weight of antioxidant, 3 to 20 parts by weight of adhesion promoter, and stabilizer 1 A mixing step of mixing the modified asphalt concrete composition including 10 parts by weight; A casting step of transferring the mixed modified asphalt concrete composition to a moving unit to pour the mixed modified asphalt concrete composition on the target surface; A compacting step after the pouring step is finished; And it provides a construction method of the modified asphalt concrete composition comprising a curing step of curing after the compaction step is finished.

Asphalt according to the present invention is not particularly limited as long as it is conventionally used in the art, but it is recommended to use straight asphalt.

 The straight asphalt is a conventional asphalt obtained by refining the residue obtained by distilling or distilling raw materials from petroleum asphalt, and particularly, having an infiltration degree of 20 to 40 is more preferable because of its ease of construction on the road.

The content of the remaining components other than asphalt constituting the modified asphalt concrete composition according to the present invention, specifically, modified asphalt concrete composition using SIS and recycled rubber powder, is based on 100 parts by weight of asphalt.

Styrene isoprene styrene (SIS) according to the present invention suppresses the occurrence of cracks, prevents potholes, and improves strength while providing point coking force to asphalt.

Preferably, styrene isoprene styrene is preferably styrene isoprene styrene having an elongation of 320 to 1,400%, and the amount of the styrene isoprene styrene is preferably 1 to 25 parts by weight based on 100 parts by weight of asphalt.

The petroleum resin according to the present invention is to provide high adhesion to the modified asphalt concrete composition, specifically modified asphalt concrete composition using SIS and recycled rubber powder, and is an oil produced as a by-product of petroleum refining process or petrochemical industry. Any resin may be used as long as the resin containing olefin or diolefin is polymerized by various methods. Preferably, aromatic petroleum resins, aliphatic petroleum resins or mixtures thereof may be used, and particularly preferably. Is suitable for petroleum resins with a melting temperature of 100 ° C or more and a penetration of 3dmm or less and a viscosity (140 ° C or less) of 50 to 500 cps, but a melting temperature of 110 ° C to 140 ° C and a penetration of A petroleum resin having a viscosity of 0.5 to 2 dmm and a temperature of 140 ° C. of 50 to 300 cps is preferable, but a viscosity of 100 to 15 is more preferable. It is recommended to use aliphatic C-5 petroleum resin which is 0cps.

In one embodiment, the petroleum resin may be used in combination with each other, in order to exhibit a strong adhesive performance irrespective of temperature changes, low or high softening point.

At this time, as a preferable petroleum resin compounding, the softening point is as small as 95 to 100 ° C and the softening point is as large as 105 to 125 ° C in a weight ratio of 1: 9 to 9: 1, preferably 6.5: 3.5, Can be obtained by adjusting the physical properties.

In addition, the petroleum resin having a low softening point improves the adhesive strength by improving the initial adhesive force, and the petroleum resin having a high softening point may increase heat resistance to prevent flowing down, increase weather resistance as well as improve adhesive strength.

In another aspect, the petroleum resin according to the present invention may be added to the rosin to supplement the adhesive function, so that the increasing properties of the rosin can provide a more stable adhesive performance.

At this time, the mixing ratio of the petroleum resin and rosin is not particularly limited, but may be mixed in a weight ratio of 1: 9 to 9: 1.

Here, if the melting temperature of the petroleum resin is less than 100 ℃ can not be a bad product by sticking together or forming a lump when the temperature is high, if the penetration is less than 0.5dmm too high to improve the high-temperature properties of asphalt It is a problem.

In addition, if the 140 ℃ viscosity of the petroleum resin is 500cps or more, the viscosity is higher than asphalt, the production time is too long.

The amount of the preferred petroleum resin is not particularly limited, but is preferably 1 to 25 parts by weight based on 100 parts by weight of asphalt.

The recycled rubber powder according to the present invention is for improving the binding strength and durability of the modified asphalt concrete composition, and may be any conventional recycled rubber powder in the art for this purpose, but preferably EDPM rubber, waste It includes powdered rubber from tire rubber, waste rubber or mixtures thereof.

Here, the waste rubber is preferably used to crush the size of 0.01 to 4mm.

The amount of the preferred recycled rubber powder is not particularly limited, but is preferably 3 to 15 parts by weight based on 100 parts by weight of asphalt.

The modifying agent according to the present invention is to improve the durability and flowability of the modified asphalt concrete composition, specifically modified asphalt concrete composition using SIS and recycled rubber powder, to increase the fluidity at high temperature and to suppress the occurrence of cracking at low temperature. Any modifier may be used as long as it has a purpose, but rubber, plastic or a mixture thereof may be preferably used.

As the preferred rubber, it is recommended to use natural rubber, styrene-butadiene (SB), polypropene latex, ground rubber or at least one mixture selected from them.

As the preferred plastic, it is recommended to use polyethylene (PE), polypropylene (PP), ethylene acrylic copolymer, polyvinyl chloride, ethylene propylene, polyolefin or at least one mixture selected from them.

The amount of the modifier according to the present invention can be changed according to the user's choice, but it is preferably 5 to 30 parts by weight based on 100 parts by weight of asphalt.

The performance improving agent according to the present invention may be any performance improving agent commonly used in the art, in particular, any asphalt performance improving agent, and the amount thereof is preferably 100 parts by weight to 1 to 20 parts by weight of asphalt.

Preferred performance improvers include 90% to 99.5% by weight of vinyl acetate monomer-paraffin oil and 0.5 to 10% by weight of benzoyl peroxide based on the total weight of the performance improver.

Here, the vinyl acetate monomer-paraffin oil is preferably used is a mixture of 5 to 25% by weight of vinyl acetate monomer and 75 to 95% by weight of paraffin oil.

Rubber anti-aging agent according to the present invention shows the effect of preventing the aging of the rubber, asphalt, polymer, etc. contained in the modified asphalt concrete composition, which mainly has a function of absorbing ultraviolet light causing photooxidation, specifically It is decomposed to form a stabilizing material on the vertical, or to react with a peroxide radical to change to an inert material, or to react with a material produced by a radical quenching reaction, to a substance which acts as an original anti-aging agent or other anti-aging agent.

It is preferable to use 2-mercapto benzoimidazole as the preferred rubber anti-aging agent, and the amount thereof is not particularly limited, but it is preferably 1 to 10 parts by weight based on 100 parts by weight of asphalt.

The compatibilizer according to the present invention is to increase the compatibility between the modified asphalt concrete composition, specifically, the recycled asphalt and the performance improver and the like contained in the modified asphalt concrete composition using SIS and recycled rubber powder.

As the preferred compatibilizer, polyphosphoric acid, metal salt inorganic acids, or mixtures thereof may be used, and the amount of the compound is preferably used in an amount of 2 to 15 parts by weight based on 100 parts by weight of asphalt.

Since the nanoceramic particles according to the present invention float to the surface during curing of the modified asphalt concrete composition to form a dense and high surface, moisture resistance, durability, weather resistance, impact resistance, and chemical resistance are improved.

The amount of the nanoceramic particles used may be 3 to 20 parts by weight based on 100 parts by weight of asphalt.

Preferred nanoceramic particles include silicon carbide, alumina, silica, zirconia-silica, ZnO, TiO ₂ and / or CaCO ₃ .

It is preferable that these ceramic particles have an average particle diameter in the nano range, specifically, the average particle diameter of the silicon carbide is 300 to 500 nm, the average particle diameter of the alumina is 500 to 1000 nm, the average particle diameter of the silica is 700 to 1500 nm, and the zirconia- that the average particle size of silica is from 500 to 1000nm, the average particle size of the ZnO is from 500 to 1000nm, the average particle diameter of the average particle size of the TiO2 is from 100 to 300nm, and CaCO ₃ is 500 to 1000nm is preferable.

Among them, silicon carbide is artificially present because it does not exist as a natural mineral, and has excellent chemical stability and corrosion resistance at high temperature and high hardness.

Flow preventing agent according to the present invention is intended to have a fluidity more than necessary when the construction using the modified asphalt concrete composition, any of the flow inhibitors commonly used in the art for this purpose may be used, but it is recommended to recommend It is preferable to use polyethylene (PE) wax, polypropylene (PP) wax, amide wax, zinc stearate, calcium stearate, stearic acid, micro wax or a mixture of at least one selected from them. It is recommended that it is from 10 parts by weight.

The antioxidant according to the present invention is for preventing oxidation of the modified asphalt concrete composition.

Preferred antioxidants may be used amine-based, bisphenol-based, monophenol-based and sulfur-based antioxidants, the amount is preferably 0.1 to 5 parts by weight based on 100 parts by weight of asphalt.

Specifically, the antioxidant according to the present invention is a low molecular type polymeric phenolic antioxidant such as 2.2-methylenebis (4-methyl-6-t-butylphenol) [2. 2-M ethylenebis (4-methyl-6-t-butylphenol)], 2.6-di-t-butyl-4-methylphenol (2.6-di-t-Butyl-4-methylphenol) or mixtures thereof I recommend you.

The adhesion promoter according to the present invention is to make the modified asphalt concrete composition more easily adhered to the contact surface to be constructed, and the amount of use thereof is preferably 3 to 20 parts by weight based on 100 parts by weight of asphalt.

Preferred adhesion promoters may use hydroxy ethyl acryloyl phosphate, hydroxy ethyl methacrylate phosphate or mixtures thereof.

The stabilizer according to the present invention is to stably store each component of the modified asphalt concrete composition for a longer time, and any stabilizer having this purpose may be used, but preferably, pectin, gum arabic, and karaya gum , Tragacan gum, locust bean gum, guar gum, tamarind gum, tara gum, damma gum, agar, carrageenan, alginic acid, xanthan, dextran, glucan, gelatin, casein, cellulose derivatives or mixtures thereof It is recommended to use, and the amount of use is recommended to be 1 to 10 parts by weight based on 100 parts by weight of asphalt.

The modified asphalt concrete composition according to the present invention, specifically the modified asphalt concrete composition using SIS and recycled rubber powder may further include one or more kinds of adducts carried out in the following specific embodiments.

In a particular embodiment, the modified asphalt concrete composition according to the present invention, in particular modified asphalt concrete composition using SIS and recycled rubber powder is 3 to 15 parts by weight perfluorine based on 100 parts by weight of asphalt in order to improve the bonding and durability, etc. It may further comprise a methoxysilane.

In another specific aspect, the modified asphalt concrete composition according to the present invention is 2 to 15 parts by weight of glycidyl methacrylate (GMA) based on 100 parts by weight of asphalt to improve impact strength, elongation, tensile strength and / or elasticity. ) May further include a resin.

Preferred glycidyl methacrylate-based resins are ethylene-glycidyl methacrylate copolymers (EGMA), ethylene-butylacrylate-glycidyl methacrylate copolymers (EBA-GMA) or at least one selected from them. It is better to use mixtures.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 5 to 10 parts by weight of sodium alginate based on 100 parts by weight of asphalt to increase viscosity and enhance adhesion, and if the content is less than 5 parts by weight If the hydrophobicity is lowered and the content exceeds 10 parts by weight, the viscosity is excessively increased, which is not good.

The sodium alginate is one of the polysaccharides represented by (C ₆ H ₈ O ₆ ) n and has a carboxyl group, and can be made by treating soda ash with kelp. Sodium alginate has a viscosity in the sodium alginate itself. Incorporation into the product will enhance viscosity and adhesion.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 3 parts by weight based on 100 parts by weight of asphalt in order to ensure breathability of the composition, based on 100 parts by weight of modified asphalt If it is less than 1 part by weight, the desired function cannot be obtained. If it is more than 3 parts by weight, the strength of the composition may be deteriorated.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 1 to 4 parts by weight of diatomaceous earth having a low density and a large surface area based on 100 parts by weight of asphalt to promote drying of the composition.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 1 to 5 parts by weight of polyvinylidene fluoride resin based on 100 parts by weight of asphalt in order to prevent cohesion of the composition and separation of materials.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 1 to 3 parts by weight of polyindolocarbazole based on 100 parts by weight of asphalt for gelling of the composition.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 5 to 20 parts by weight of acrylic polymer resin based on 100 parts by weight of asphalt to improve chemical resistance.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 5 to 15 parts by weight of diethyl acetate-maleic acid diethyl acetate based on 100 parts by weight of asphalt to improve the adhesion and durability of the composition.

In another specific embodiment, the modified asphalt concrete composition according to the present invention is based on 100 parts by weight of polymetylsilsesquioxane in order to improve the adhesion of the composition and to fill voids in the pavement surface to which the binder composition is applied. It may further comprise 1 to 5 parts by weight.

In another specific aspect, the modified asphalt concrete composition according to the present invention is 0.1 to 3 parts by weight of welan gum (based on 100 parts by weight of welan gum) in order to prevent separation of materials due to the specific gravity difference between the components of the composition. It may further include.

In another specific embodiment, the modified asphalt concrete composition according to the present invention is added 1 to 5 parts by weight of sodium oleate based on 100 parts by weight of asphalt in order not only to improve workability and quality stability, but also to increase interfacial adhesion with the surface to be bonded. It may include.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of cocobetaine based on 100 parts by weight of asphalt for improving plasticity and water retention of the composition and preventing cracking and increasing strength.

In another specific embodiment, the modified asphalt concrete composition according to the present invention contains sodium rosinate in an amount of 1 to 3 parts by weight based on 100 parts by weight of asphalt in order to improve the dispersibility of the composition and to avoid entanglement even after mixing of the composition. It may include.

In another specific embodiment, the modified asphalt concrete composition according to the present invention is a nickel chromium powder mixed with nickel powder and chromium powder in a weight ratio of 1: 1 in order to give antibacterial and anti-rust effect based on 100 parts by weight of asphalt 3 It may be further included in 10 parts by weight, nickel powder and chromium powder are all less than 200 mesh to use the powder, nickel powder and chromium powder is used in a weight ratio of 1: 1 to prevent homogeneity deterioration during the slurry state of the composition In order to prevent the deterioration in the slurry state at the same time to impart antimicrobial and anti-corrosive action by mixing 1: 1 low-specific chromium powder with high specific gravity nickel powder, and also mixed weight of nickel chromium powder If the ratio is less than 3 parts by weight based on 100 parts by weight of asphalt, the above-mentioned functional imparting effect is weak, and when the amount exceeds 10 parts by weight It becomes a uniform dispersion of the ingredients in the mixture of reduced gallery state is not good.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of sorbitan monooleic acid ester based on 100 parts by weight of asphalt in order to improve the strength of the composition and improve water resistance.

In still another aspect, the modified asphalt concrete composition according to the present invention comprises 1 to 5 weight percent of a toluene-ginazine mixture of toluene and gumrogen mixed in a weight ratio of 1: 1 in order to maintain initial adhesion of the composition. It may include more wealth.

In another specific aspect, the modified asphalt concrete composition according to the present invention may be applied to the cross-section and / or the structure to which the composition is attached to include 1 to 3 parts by weight of the caustic soda based on 100 parts by weight of asphalt to improve the water resistance. Can be.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of a temperature adjusting additive, which prevents the viscosity from increasing according to temperature, based on 100 parts by weight of asphalt.

Preferred temperature control additives include micro crystalline wax, hydroxy stearic acid, 1,2-hydroxy stearic acid, lauric acid amide, bisamide wax (ethylene bis steramid; Ethylene-Bis-Stearamide), Stearic acid amide, oleic acid amide, ercaic acid amide, N-oleyl stearic acid amide, N-stearyl stearic acid amide, N-stearyl ercarboxylic acid amide or a mixture of at least one or more thereof.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of boric acid compound based on 100 parts by weight of asphalt in order to improve the water resistance and scratch resistance of the composition. Orthoboric acid, metaboric acid, tetraboric acid, methyl borate, ethyl borate, etc. are mentioned, It is preferable to use orthoboric acid.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 1 to 5 parts by weight of zinc oxide based on 100 parts by weight of asphalt for promoting hardening of the composition and preventing corrosion, the amount of which is 1 part by weight. When less than 5, the corrosion resistance is inferior, and when it is more than 5 parts by weight, adhesion is poor due to the rapid reaction of the composition, and cracks are not good.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of hydrazine phenyl triazine based on 100 parts by weight of asphalt to absorb ultraviolet rays and prevent the occurrence of cracks.

In another specific aspect, the modified asphalt concrete composition according to the present invention increases the initial tacky property to improve the initial adhesive force to reduce the failure rate of lifting, warping, etc., and to provide light weight and rigidity On the basis of 100 parts by weight may further comprise 1 to 10 parts by weight of polyvinyl alcohol powder.

Herein, the polyvinyl alcohol powder is not particularly limited as long as it is a conventional polyvinyl alcohol powder in the art, but preferably, polyvinyl alcohol powder including pores having 0.1 to 10 μm in the range of 0.05 to 0.4 cc / g is used. Good to do.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 1 to 10 parts by weight of magnesium oxide based on 100 parts by weight of asphalt to prevent the composition from shrinking.

Here, the magnesium oxide may provide an effect of hardly improving the ground when water is introduced into the ground due to the ground or road work with high water content during road construction.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 15 parts by weight of the absorbent polymer based on 100 parts by weight of asphalt.

Here, the absorbent polymer absorbs water and expands the absorbent polymer to perform a role as a ball bearing, thereby improving the workability of the modified asphalt concrete composition, and thereby increasing the strength by reducing the number of units.

Preferred absorbent polymers are at least one mixture selected from polyacrylates and derivatives thereof, polyethylene oxide derivatives and absorbent polyurethanes.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of sodium metasilicate (Na ₂ SiO ₃ ) based on 100 parts by weight of asphalt to improve the compressive strength and flexural strength of the composition. , 100 parts by weight of asphalt content is less than 1 part by weight fluidity is low and irregular bubbles are formed, when the content is more than 5 parts by weight fluidity is sharply lowered difficult to secure curing time is not good.

The sodium metacuate may be a hydrate, but anhydrides formed by solidifying a melt of quartz and sodium carbonate by heating at 1,000 ° C. may also be used.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include sodium bentonite in an amount of 1 to 3 parts by weight based on 100 parts by weight of asphalt to densify pores, prevent leakage, and improve strength.

The sodium bentonite absorbs a large amount of water and expands to several times its original volume and becomes a gel-like state to densely fill the pores of the composition, thereby preventing leakage and improving strength, thereby contributing to crack prevention.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 0.1 to 3 parts by weight of hypochlorite based on 100 parts by weight of asphalt in order to fill the pores of the composition to prevent the pores from being issued during construction. .

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of guar gum based on 100 parts by weight of asphalt.

Here, the guar gum is a natural resin that is a water-soluble polymer, and the pores are generated by the interaction between the expansion and dehydration by the hydration reaction and the expansion action during the solidification by the hydration reaction of the composition. The shock absorption effect can be exhibited by the elasticity inherent in guar gum which is resin.

In another specific embodiment, the modified asphalt concrete composition according to the present invention is based on 100 parts by weight of asphalt to prevent harmful components present on the construction surface of the composition from being eluted to the outside to cause environmental pollution. It may further comprise from 15 parts by weight of dimethyl ammonium chloride.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 0.1 to 5 parts by weight of montmorillonite based on 100 parts by weight of asphalt to increase the adhesion of the composition.

Here, the montmorillonite is a monoclinic mineral, which is a kind of clay mineral, has a hardness of 1 to 1.5, specific gravity of 2 to 1.5, and absorbs moisture to increase the volume 7 to 10 times, as well as ion exchangeability. This is high, the adhesion occurs during the reaction with moisture stabilizes the strength of the construction surface.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 7 parts by weight of kaolinite based on 100 parts by weight of asphalt to increase the bonding strength of the composition.

Here, the kaolinite is mainly used as a material of porcelain due to its excellent absorption and viscosity as the main component of kaolin.

In addition, the kaolinite is relatively fine, the hardness is 2 to 2.5 so that when the composition is applied to the construction surface penetrates between the components of the composition to further strengthen the strength of the construction surface.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of calcium nitrite based on 100 parts by weight of modified asphalt to suppress corrosion and improve dispersibility of the composition.

In another specific embodiment, the modified asphalt concrete composition according to the present invention is based on 100 parts by weight of sulfoxypolyethylene glycol allyl ether based on 100 parts by weight of asphalt in order to facilitate the mixing of the components constituting the modified asphalt concrete composition and to improve the stability of the composition. It may be further included as 1 to 10, if the content is less than 1 part by weight based on 100 parts by weight of asphalt is not easy to mix the composition, if it exceeds 10 parts by weight is not good because the stability is excessively reduced.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 0.1 to 5 parts by weight of nanoclay based on 100 parts by weight of asphalt for dimensional stability of the composition.

Here, the nanoclay refers to clay particles having a size in nanometers.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of lithium hydroxide based on 100 parts by weight of asphalt to improve curing reactivity by preventing curing of the modified asphalt concrete composition and organic matter. Can be.

In another specific embodiment, the modified asphalt concrete composition according to the present invention is 0.1 to 2 based on 100 parts by weight of titanium oxide to improve the anti-fouling properties and the temperature rise of the surface to be constructed, such as road surface on which the modified asphalt concrete composition is constructed. It may be further included in parts by weight, since the titanium oxide has strong acid resistance, alkali resistance, and hiding power, and excellent light reflectivity in the infrared region, when the titanium oxide is included in the modified asphalt concrete composition, the above effects can be obtained.

In another specific embodiment, the modified asphalt concrete composition according to the present invention further comprises 1 to 10 parts by weight of a polypropylene compound grafted maleic anhydride based on 100 parts by weight of asphalt so that the composition can be easily dispersed and tightly bonded to each other. can do.

The polypropylene compound may be homo polypropylene, random polypropylene, or a mixture thereof, but it is preferable to have a mixture of 50 to 90% by weight of homo polypropylene and 10 to 50% by weight of random polypropylene. .

Here, the random polypropylene is not particularly limited, but for example, propylene and a comonomer selected from the group consisting of ethylene, butylene, and octene may be polymerized, and preferably, may be an ethylene-propylene random copolymer. . In this case, the comonomer may be polymerized 1 to 10 parts by weight, preferably 3 to 8 parts by weight based on 100 parts by weight of random polypropylene, and the graft ratio is satisfactory compared to the amount of maleic anhydride added when the comonomer content is less than 1 part by weight. It may not be unfavorable, and if it exceeds 10 parts by weight, mechanical properties and heat resistance may be lowered.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise 1 to 10 parts by weight of sodium hexametaphosphate based on 100 parts by weight of asphalt to prevent ionization of the composition.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further comprise tetrafluoro ethylene in an amount of 1 to 10 parts by weight based on 100 parts by weight of asphalt in order to improve the elongation and strength of the composition, the content of which is asphalt If it is less than 1 part by weight based on 100 parts by weight, the effect of improving elongation and strength is insignificant, and if it exceeds 10 parts by weight, it is not economical.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of allite (Alite, C3S) based on 100 parts by weight of asphalt to increase the initial strength of the modified asphalt concrete composition. .

Here, the allite means a mixture such as 3CaOSiO ₂ , which promotes a hydration reaction to reach the highest degree of supersaturation of calcium hydroxide (Ca (OH) ₂ ) in the solution, and the precipitation of the hydration product becomes very active. The strength is increased.

In another specific embodiment, the modified asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of cellulose acetate butyrate based on 100 parts by weight of in situ recycled asphalt to improve the viscosity and water retention of the composition.

Referring to the modified asphalt concrete composition construction method according to the present invention having such a configuration, specifically the modified asphalt concrete composition construction method using SIS and recycled rubber powder as follows.

Here, the method of constructing the modified asphalt concrete composition is not particularly limited, but preferably, a cleanup step of arranging the target surface to be constructed;

Based on 100 parts by weight of asphalt, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of petroleum resin, 3 to 15 parts by weight of reclaimed rubber powder, 5 to 30 parts by weight of modifier, 1 to 20 parts by weight of performance improving agent, rubber aging 1 to 10 parts by weight of inhibitor, 2 to 15 parts by weight of compatibilizer, 3 to 20 parts by weight of nanoceramic particles, 1 to 10 parts by weight of flow inhibitor, 0.1 to 5 parts by weight of antioxidant, 3 to 20 parts by weight of adhesion promoter, and stabilizer 1 A mixing step of mixing the modified asphalt concrete composition including 10 parts by weight;

A casting step of transferring the mixed modified asphalt concrete composition to a moving unit to pour the mixed modified asphalt concrete composition on the target surface;

A compacting step after the pouring step is finished; And

It includes a curing step of curing after the compaction step is finished.

Here, it is preferable to use a dump truck as the moving means of the pouring step.

Hereinafter, the present invention will be described in detail through examples. However, the following examples are only for illustrating the present invention in detail and are not intended to limit the scope of the present invention by these examples.

Example 1

100 g of straight asphalt with a penetration of 30, 13 g of styrene isoprene styrene having an elongation of about 850%, 13 g of an aliphatic C-5 petroleum resin having a viscosity of 130 cps at 140 ° C, 10 g of recycled rubber powder from waste tire rubber, 10 g of natural rubber, and 10 g of polyethylene 20 g of modifier, 10 g of vinyl acetate monomer-paraffin oil, and a mixture of 0.25 g of benzoyl peroxide, 10 g of performance modifier, 5 g of 2-mercapto benzoimidazole, 8 g of polyphosphate, 15 g of silicon carbide having an average particle diameter of about 450 nm, polyethylene 5 g of wax, 3 g of 2.2-methylenebis (4-methyl-6-t-butylphenol), 10 g of hydroxy ethyl acryloyl phosphate, and 5 g of pectin were mixed to prepare a modified asphalt concrete composition.

Example 2

The same procedure as in Example 1 was carried out except that 10 g of perfluoromethoxysilane was further added.

Example 3

The same procedure as in Example 1 was conducted except that 10 g of ethylene-glycidyl methacrylate copolymer was further added.

Example 4

The same procedure as in Example 1 was conducted except that 8 g of sodium alginate was further added.

Example 5

The same procedure as in Example 1 was carried out except that 2 g of sodium distearate was added.

Example 6

It carried out in the same manner as in Example 1, with the addition of more diatomaceous earth 3g.

Example 7

The same procedure as in Example 1 was conducted except that 3 g of polyvinylidene fluoride resin was further added.

Example 8

The same procedure as in Example 1 was conducted except that 2 g of polyindolocarbazole was further added.

Example 9

The same procedure as in Example 1 was carried out, with the addition of 12 g of acrylic polymer resin.

Example 10

The same procedure as in Example 1 was conducted except that 10 g of vinyl acetate-diethyl maleate was further added.

Example 11

The same procedure as in Example 1 was conducted except that 3 g of polymethylsilsesuccioxane was further added.

Example 12

The same procedure as in Example 1 was conducted except that 1 g of wellan gum was added.

Example 13

The same procedure as in Example 1 was carried out except that 3 g of sodium oleate was further added.

Example 14

The same procedure as in Example 1 was carried out except that 3 g of cocobetaine was further added.

Example 15

The same procedure as in Example 1 was conducted except that 2 g of sodium rosinate was further added.

Example 16

The same procedure as in Example 1 was carried out, but was performed by further adding 7 g of nickel chromium powder in which the nickel powder and the chromium powder were mixed in a weight ratio of 1: 1.

Example 17

The same procedure as in Example 1 was carried out except that 3 g of sorbitan monooleic acid ester was further added.

Example 18

The same procedure as in Example 1 was performed except that 3 g of the toluene-grosene mixture in which toluene and gumrogin were mixed in a weight ratio of 1: 1 was added.

Example 19

It carried out in the same manner as in Example 1, but was further added 2g of Caic acid soda.

Example 20

The same procedure as in Example 1 was conducted except that 5 g of microcrystalline wax was added.

Example 21

The same procedure as in Example 1 was carried out except that 3 g of orthoboric acid was added.

Example 22

The same procedure as in Example 1 was conducted except that 3 g of zinc oxide was further added.

Example 23

The same procedure as in Example 1 was conducted except that 3 g of hydrazine phenyl triazine was further added.

Example 24

The same procedure as in Example 1 was carried out, except that 5 g of polyvinyl alcohol powder containing about 5 μm of pores and about 0.1 cc / g of pores was added thereto.

Example 25

The same procedure as in Example 1 was conducted except that 2 g of magnesium oxide was further added.

Example 26

The same procedure as in Example 1 was carried out except that 10 g of polyethylene oxide derivative was further added.

Example 27

The same procedure as in Example 1 was carried out except that 3 g of sodium metasilicate was added.

Example 28

The same procedure as in Example 1 was conducted except that 2 g of sodium bentonite was further added.

Example 29

The same procedure as in Example 1 was carried out except that 2 g of hypochlorite was further added.

Example 30

The same procedure as in Example 1 was carried out, but with 5 g of guar gum added.

Example 31

The same procedure as in Example 1 was conducted except that 10 g of dimethyl ammonium chloride was further added.

Example 32

The same procedure as in Example 1 was carried out except that 3 g of montmorillonite was added.

Example 33

The same procedure as in Example 1 was carried out except that 4 g of kaolinite was added.

Example 34

The same procedure as in Example 1 was conducted except that 5 g of calcium nitrite was further added.

Example 35

The same procedure as in Example 1 was conducted except that 5 g of sulfoxypolyethylene glycol allyl ether was further added.

Example 36

The same procedure as in Example 1 was carried out, with the addition of 3 g of nanoclay having an average particle diameter of about 10 nm.

Example 37

The same procedure as in Example 1 was conducted except that 2 g of lithium hydroxide was further added.

Example 38

The same procedure as in Example 1 was conducted except that 1 g of titanium oxide was further added.

Example 39

It was carried out in the same manner as in Example 1, but was prepared by adding 1.3% by weight of maleic anhydride to the total polymer compound weight in a mixture of 90% by weight homopolypropylene and 10% by weight random polypropylene (ethylene content 5% by weight) 5 g of polypropylene compound grafted with maleic anhydride was added.

Example 40

The same procedure as in Example 1 was conducted except that 5 g of sodium hexametaphosphate was further included.

Example 41

It carried out in the same manner as in Example 1, but was further included 5g tetra fluoro ethylene.

Example 42

It carried out in the same manner as in Example 1, but was further carried out to further include 5g of allite.

Example 43

It carried out in the same manner as in Example 1, but was further carried out with 5g of cellulose acetate butyrate.

Example 44

The same procedure as in Example 1 was carried out except that all the additives added according to Examples 2 to 43 were added.

[Experiment]

After preparing an asphalt concrete layer having a thickness of about 60 mm using the composition prepared according to the embodiments, the water resistance, low temperature (at -10 ° C) hardenability, cracking property, indirect tensile strength, deformation strength, compressive strength, and the like were measured. An asphalt layer having a thickness of about 50 mm was prepared and shown in Table 1 by measuring dynamic stability.

Here, the dynamic stability was measured by the deformation test and the test by Kim Test to evaluate the plastic deformation resistance, the indirect tensile strength was carried out to evaluate the crack resistance, and the compressive strength was measured by the asphalt compressive strength tester.

Gelation / 1hr
(at -10 ℃) Cracking degree Dynamic stability
(pass / mm) Indirect tensile strength
(ITS) Deformation strength
(Mpa) Compressive strength (MPa) 7 days 28 days Example 1 64 none 2594 0.86 5.92 27.8 82 Example 2 66 none 2615 0.85 5.94 25.1 84 Example 3 64 none 2631 0.84 5.84 31.6 85 Example 4 64 none 2586 0.86 5.89 32.2 86 Example 5 65 none 2730 0.84 5.83 28.9 85 Example 6 67 none 2764 0.87 5.91 26.1 81 Example 7 67 none 2759 0.86 5.82 30.4 85 Example 8 65 none 2711 0.86 5.81 35.2 86 Example 9 67 none 2639 0.86 5.68 32.5 84 Example 10 67 none 2754 0.85 5.65 35.2 83 Example 11 66 none 2640 0.88 5.61 33.1 82 Example 12 67 none 2594 0.87 5.79 32.2 82 Example 13 65 none 2586 0.86 5.81 32.4 85 Example 14 65 none 2755 0.84 5.84 31.7 83 Example 15 67 none 2654 0.86 5.80 31.2 81 Example 16 67 none 2598 0.85 5.76 28.8 84 Example 17 68 none 2682 0.87 5.71 31.8 82 Example 18 68 none 2655 0.88 5.72 31.2 83 Example 19 68 none 2590 0.85 5.88 33.6 82 Example 20 65 none 2658 0.84 5.63 32.1 83 Example 21 65 none 2650 0.85 5.81 32.5 83 Example 22 67 none 2599 0.88 5.82 31.4 84 Example 23 66 none 2687 0.86 5.69 29.2 83 Example 24 68 none 2537 0.85 5.75 31.1 81 Example 25 67 none 2690 0.86 5.79 31.2 86 Example 26 66 none 2531 0.87 5.73 33.1 81 Example 27 67 none 2691 0.85 5.75 32.5 87 Example 28 68 none 2553 0.87 5.70 31.6 84 Example 29 67 none 2652 0.86 5.71 31.3 85 Example 30 68 none 2684 0.89 5.81 33.4 83 Example 31 67 none 2736 0.88 5.82 31.4 81 Example 32 68 none 2724 0.87 5.70 29.2 83 Example 33 68 none 2711 0.85 5.77 32.1 82 Example 34 68 none 2695 0.86 5.70 32.5 86 Example 35 66 none 2645 0.85 5.79 27.8 83 Example 36 67 none 2577 0.87 5.73 31.7 83 Example 37 68 none 2584 0.86 5.72 30.1 84 Example 38 67 none 2621 0.85 5.78 32.5 82 Example 39 65 none 2633 0.85 5.63 32.1 83 Example 40 66 none 2761 0.85 5.81 32.5 83 Example 41 67 none 2754 0.88 5.81 31.4 85 Example 42 66 none 2550 0.86 5.65 32.9 89 Example 43 67 none 2658 0.85 5.75 30.2 81 Example 44 67 none 2654 0.87 5.75 31.2 86

As shown in Table 1, the dynamic stability, the indirect tensile strength and the deformation strength of the embodiments using the modified asphalt concrete composition are good, the gelation proceeds at low temperature, the curing is not only rapid, there is no cracking, and the compressive strength is 28 days. At this point in time, it was confirmed that all of the modified asphalt concrete compositions in the examples were always at high strength as 75 megapascals or more.

As described above, those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features. Therefore, it should be understood that the embodiments described above are all illustrative and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention all changes or modifications derived from the meaning and scope of the claims to be described later rather than the detailed description and equivalent concepts thereof.

Claims (5)

Based on 100 parts by weight of asphalt,
1 to 25 parts by weight of styrene isoprene styrene;
1 to 25 parts by weight of an aliphatic C-5 petroleum resin having a viscosity of 130 cps at 140 ° C;
3 to 15 parts by weight of recycled rubber powder;
5 to 30 parts by weight of a modifier;
1 to 20 parts by weight of performance improving agent;
1 to 10 parts by weight of the rubber anti-aging agent;
2 to 15 parts by weight of a compatibilizer;
3 to 20 parts by weight of nanoceramic particles;
1 to 10 parts by weight of a flow inhibitor;
0.1 to 5 parts by weight of antioxidant;
3 to 20 parts by weight of adhesion promoter; And
In the modified asphalt concrete composition comprising 1 to 10 parts by weight of a stabilizer,
Further comprising 1 to 3 parts by weight of polyindolocarbazole based on 100 parts by weight of asphalt,
It further comprises 5 to 15 parts by weight of vinyl acetate-diethyl acetate based on 100 parts by weight of asphalt,
Welan gum further comprises 0.1 to 3 parts by weight based on 100 parts by weight of asphalt,
Sodium oleate further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Cocobetaine further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Sorbitan monooleic acid ester further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Toluene and gum rosin further comprises 1 to 5 parts by weight based on 100 parts by weight of the toluene-grosene mixture mixed in a weight ratio of 1: 1,
Casein soda further comprises 1 to 3 parts by weight based on 100 parts by weight of asphalt,
The temperature adjusting additive further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
Magnesium oxide further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
Hypochlorite further comprises 0.1 to 3 parts by weight based on 100 parts by weight of asphalt,
Kaolinite further comprises 1 to 7 parts by weight based on 100 parts by weight of asphalt,
Calcium nitrite further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
Sulfoxy polyethylene glycol allyl ether further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
Lithium hydroxide further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Titanium oxide further comprises 0.1 to 2 parts by weight based on 100 parts by weight of asphalt,
Tetrafluoroethylene further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
It further comprises 1 to 10 parts by weight of allite based on 100 parts by weight of asphalt,
Modified asphalt concrete composition further comprises 1 to 10 parts by weight of cellulose acetate butyrate based on 100 parts by weight of asphalt.
delete delete delete Arranging the object surface to be constructed;
1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of aliphatic C-5 petroleum resin having a viscosity of 130 cps based on 100 parts by weight of asphalt, 3 to 15 parts by weight of reclaimed rubber powder, 5 to 30 parts by weight of modifier, 1 to 20 parts by weight of performance improving agent, 1 to 10 parts by weight of rubber aging inhibitor, 2 to 15 parts by weight of compatibilizer, 3 to 20 parts by weight of nanoceramic particles, 1 to 10 parts by weight of flow inhibitor, 0.1 to 5 parts of antioxidant, adhesion In the modified asphalt concrete composition comprising 3 to 20 parts by weight of the enhancer, and 1 to 10 parts by weight of the stabilizer, polyindolocarbazole is further included in an amount of 1 to 3 parts by weight based on 100 parts by weight of asphalt, and vinyl acetate-diethyl acetate 5 to 15 parts by weight, based on 100 parts by weight of asphalt, further comprises 0.1 to 3 parts by weight of welan gum based on 100 parts by weight of asphalt, and sodium oleate based on 100 parts by weight of asphalt. 1 to 5 parts by weight, further comprising 1 to 5 parts by weight of cocobetaine on the basis of 100 parts by weight of asphalt, further comprises 1 to 5 parts by weight of sorbitan monooleic acid based on 100 parts by weight of asphalt, toluene and It further comprises 1 to 5 parts by weight based on 100 parts by weight of toluene-Glozin mixture, the gum rosin is mixed in a weight ratio of 1: 1, 1 to 3 parts by weight based on 100 parts by weight of asphalt, The temperature adjusting additive further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt, further comprises 1 to 10 parts by weight of magnesium oxide based on 100 parts by weight of asphalt, 0.1 to 3 parts by weight of hypochlorite based on 100 parts by weight of asphalt It further comprises a part, kaolinite further comprises 1 to 7 parts by weight based on 100 parts by weight of asphalt, calcium nitrite 100 parts by weight of asphalt Further comprising 1 to 10 parts by weight, further comprising 1 to 10 parts by weight of sulfoxypolyethylene glycol allyl ether based on 100 parts by weight of asphalt, further comprises 1 to 5 parts by weight of lithium hydroxide based on 100 parts by weight of asphalt, 0.1 to 2 parts by weight of titanium oxide based on 100 parts by weight of asphalt, further comprises tetrafluoro ethylene as 1 to 10 parts by weight based on 100 parts by weight of asphalt, and 1 to 10 based on 100 parts by weight of asphalt. Further comprising by weight, Mixing step of mixing the modified asphalt concrete composition further comprises 1 to 10 parts by weight based on 100 parts by weight of cellulose acetate butyrate;
A casting step of transferring the mixed modified asphalt concrete composition to a moving unit to pour the mixed modified asphalt concrete composition on the target surface;
A compacting step after the pouring step is finished; And
Construction method of modified asphalt concrete composition comprising a curing step of curing after the compaction step is finished.