KR102105695B1 - Asphalt Concrete Compositions Comprising of Stylene Isoprene Stylene and Improved Aggregate-powder for Preventing Settlement of Pavement and Reserving Bearing Power and Stabilization Processing Methods of Basement Layer Using Mixing System Device and Thereof - Google Patents

Abstract

The present invention provides an asphalt concrete composition for preventing the settlement of pavement and reserving bearing power, comprising: 1 to 25 parts by weight of styrene-isoprene-styrene; 1 to 25 parts by weight of a petroleum resin; 500 to 2,000 parts by weight of aggregate; 30 to 150 parts by weight of fine aggregate powder; 0.1 to 2 parts by weight of cellulose fibers; and 0.1 to 2 parts by weight of wax based on 100 parts by weight of asphalt. The present invention also provides a stabilization processing method of an underlying layer using the composition and a mixing system input device. According to the present invention, the asphalt concrete composition, particularly an asphalt concrete composition comprising SIS and improved fine aggregate powder has effects of allowing a deposition process to be easily carried out at low costs, preventing the settlement of pavement, reserving bearing power, etc., while having good durability and not easily causing plastic deformation, aging and/or peeling.

Description

Asphalt Concrete Compositions Comprising of Stylene Isoprene Stylene and Improved Aggregate-powder for Preventing Settlement of Pavement and Reserving Bearing Power and Stabilization Processing Methods of Basement Layer Using Mixing System Device and Thereof}

The present invention relates to an asphalt concrete composition for preventing pavement settlement and securing support, and more specifically, an asphalt concrete composition for preventing pavement settlement and securing support including SIS and improved fine aggregates, and a composition and mixing system input equipment. It relates to a lower layer stable treatment construction method.

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

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

In addition, the asphalt is excellent in adhesion and has excellent adhesion to mineral materials, so it is used as a bonding material or adhesive material. It is also used as a waterproof material because it is insoluble in water and impermeable. It can change the viscosity according to the purpose of use. It has a wide range of applications and is used for various purposes such as road pavement, waterproofing, general industrial use, and agricultural use.

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

However, straight asphalt has a low softening point, high temperature sensitivity, weak weatherability, and weak cohesion, so it is used by supplementing it and adding various modifiers to suit the characteristics of the place used.

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

However, the asphalt modifiers developed so far have a problem with cracking and plastic deformation of pavement, which shows that asphalt has reduced resistance to low temperature cracking and fatigue cracking after a period of time due to the large temperature difference in all seasons. Problems such as asphalt oxidation caused by exposure to sunlight and aggregate desorption due to weakening of adhesion appear. In addition, on-site reforming materials (Plant-mix type) are not easy to secure uniform quality, and pre-mixing (Pre- mixtype) Modified asphalt is difficult to uniformly mix the constituents, and because each constituent, such as a modifier and asphalt, depends on physical bonding, it has difficulty in preservation due to poor storage.

In particular, since 2000, modified concretes have been developed that improve the performance of concrete with quick-setting cements and polymers, and are widely used as repair materials for concrete road structures due to short curing time, high water permeation resistance, and freeze-thaw resistance.

However, since the modified concrete contains a large amount of latex, the cost is high, and the heat reflectance is high, so the prevention effect for early freezing in winter is inferior to that of conventional asphalt concrete, and the heat absorption rate is low, thus changing the outside temperature as in Korea (one crossing, four seasons) ), There is a problem that cracks, surface peeling, dropping (porthole), etc. occur due to temperature stress.

Moreover, in some bridges or special areas, there are some places where heavy-duty traffic jams are heavy and heavy-vehicle ratios are difficult to withstand normal-modified asphalt (PMA) pavement.

Therefore, a very strong asphalt pavement should be thickly constructed, but in the case of general asphalt pavement, it must be strong in addition to its own thickness, as well as its elasticity, toughness, and tensile strength.

In general, a waterproofing process is carried out to prevent deterioration of a lower layer in a steel box girder bridge as well as a concrete bridge.

However, the waterproof layer (such as a coating or coating) has a problem in that it has a high cost without having structural performance.

Therefore, as mentioned above, if a mixture with excellent elasticity and a mixture with high toughness and high tensile strength and high adhesion function is applied, it can be an asphalt pavement that simultaneously exhibits structural performance and durability, and can withstand excessive traffic loads. As it has an excellent durability and asphalt pavement, it is easy to construct and enables fast traffic opening.

On the other hand, as a prior art related to the above-mentioned technology, Korean Patent Publication No. 10-2016-0106070 discloses a polymer modified asphalt concrete composition and a method for manufacturing a polymer modified asphalt concrete using the same.

The present invention has been created to overcome the above-mentioned problems, and provides an asphalt concrete composition having good durability, preventing plastic settlement, aging and / or peeling without easily preventing pavement settlement and securing support. .

The present invention

Based on 100 parts by weight of asphalt,

Styrene isoprene 1 to 25 parts by weight;

Petroleum resin 1 to 25 parts by weight;

Aggregate 500 to 2,000 parts by weight;

30 to 150 parts by weight of fine powder aggregate;

Cellulose fiber 0.1 to 2 parts by weight; And

It provides an asphalt concrete composition for preventing the settlement of pavement containing 0.1 to 2 parts by weight of wax and securing the support.

In addition, the present invention

A rearranging step of arranging the target surface to be constructed;

Based on 100 parts by weight of asphalt on the target surface after the rearranging step is completed, comprising 1 to 25 parts by weight of styrene isoprene, 1 to 25 parts by weight of petroleum resin, 0.1 to 2 parts by weight of cellulose fiber, and 0.1 to 2 parts by weight of wax Prime coating asphalt concrete pouring step of pouring the concrete composition for prime coating to a thickness of 1 to 20 mm using a mixing system input equipment;

Based on 100 parts by weight of asphalt on the target surface of the prime concrete asphalt pouring step, the styrene isoprene styrene 1 to 25 parts by weight, petroleum resin 1 to 25 parts by weight, aggregate 500 to 2,000 parts by weight, fine powder aggregate 30 to 150 Asphalt concrete composition pouring step of pouring 30 to 200 mm thick using the mixing system input equipment for the asphalt concrete composition for preventing pavement settlement and securing support, including parts by weight, 0.1 to 2 parts by weight of cellulose fiber, and 0.1 to 2 parts by weight of wax ;

Compaction step of compacting the cast-in-place asphalt concrete composition after the pouring step is completed; And

Provided is a method for constructing an asphalt concrete composition for preventing pavement settlement and securing support power, including a curing step for curing an asphalt concrete composition after the compaction step is completed.

The asphalt concrete composition according to the present invention, specifically, the asphalt concrete composition comprising SIS and improved fine aggregates, has good durability and facilitates the pouring process at low cost, without plastic deformation, aging and / or peeling easily occurring. In addition to being able to perform, it has the effect of preventing the settlement of the pavement and securing the supporting force.

Hereinafter, the present invention will be described in detail.

In one aspect, based on 100 parts by weight of asphalt, styrene isoprene styrene 1 to 25 parts by weight; Petroleum resin 1 to 25 parts by weight; Aggregate 500 to 2,000 parts by weight; 30 to 150 parts by weight of fine powder aggregate; Cellulose fiber 0.1 to 2 parts by weight; And 0.1 to 2 parts by weight of wax, to provide an asphalt concrete composition for preventing settling and securing support.

In another aspect, the present invention is a rearranging step of arranging a target surface to be constructed; Based on 100 parts by weight of asphalt on the target surface after the rearranging step is completed, comprising 1 to 25 parts by weight of styrene isoprene, 1 to 25 parts by weight of petroleum resin, 0.1 to 2 parts by weight of cellulose fiber, and 0.1 to 2 parts by weight of wax Prime coating asphalt concrete pouring step of pouring the concrete composition for prime coating to a thickness of 1 to 20 mm using a mixing system input equipment; Based on 100 parts by weight of asphalt on the target surface of the prime concrete asphalt pouring step, the styrene isoprene styrene 1 to 25 parts by weight, petroleum resin 1 to 25 parts by weight, aggregate 500 to 2,000 parts by weight, fine powder aggregate 30 to 150 Asphalt concrete composition pouring step of pouring 30 to 200 mm thick using the mixing system input equipment for the asphalt concrete composition for preventing pavement settlement and securing support, including parts by weight, 0.1 to 2 parts by weight of cellulose fiber, and 0.1 to 2 parts by weight of wax ; Compaction step of compacting the cast-in-place asphalt concrete composition after the pouring step is completed; And a curing step for curing the asphalt concrete composition after the compaction step is completed.

The asphalt according to the present invention is not particularly limited as long as it is commonly used in the art, but it is possible to use petroleum-based asphalt or an asphalt mixture.

Here, it is recommended to use a natural asphalt mixture for the asphalt mixture.

The asphalt mixture, in particular the natural asphalt mixture is not particularly limited as long as it is a natural asphalt mixture commonly used in the art, but is preferably straight asphalt, Trinidad lake asphalt, Trinidad epure ) It is preferred to use asphalt or a mixture of at least one selected from them, more preferably to use a straight asphalt with a penetration rate of 20 to 40 and natural asphalt, for example, Trinidad Lake asphalt and / or Trinidad ePure asphalt mixture. Good, more preferably, it is recommended to use a mixture of 70 to 80% by weight of straight asphalt with a penetration of 20 to 40% and 20 to 30% by weight of natural asphalt consisting of Trinidad Lake Asphalt or Trinidad Epure Asphalt. Humble.

Here, the straight asphalt (straight asphalt) is a conventional asphalt refined residues by distillation or distillation of raw materials with petroleum asphalt, particularly having an intrusion of 20 to 40 is more convenient because of the ease of construction on the road.

The straight asphalt is preferably included in the asphalt mixture at 70 to 80% by weight. If the content is less than 70% by weight, it may take a long time to harden after paving the asphalt, the softening point may be lowered, and when it exceeds 80% by weight, fluidity may be reduced.

In addition, the natural asphalt serves to prevent the settlement of pavement using the SIS of the present invention and to improve the fluidity of the asphalt concrete composition for securing support, and to increase deformation resistance, slip resistance, and friction resistance.

As the natural asphalt, trinidad lake asphalt and / or trinidad epure asphalt may be used.

The natural asphalt is preferably included in the asphalt mixture in an amount of 20 to 30% by weight, and when the content is less than 20% by weight, the effect of improving fluidity, deformation resistance, sliding resistance and friction resistance is negligible, and exceeds 30% by weight When doing so, the asphalt of the present invention may be softened and the softening point may be lowered.

The content of the remaining components other than asphalt constituting the asphalt concrete composition according to the present invention, specifically the asphalt concrete composition for preventing pavement settlement and securing support, comprising SIS and improved fine aggregate is based on 100 parts by weight of asphalt.

Styrene isoprene stylene (SIS) according to the present invention suppresses cracking, prevents potholes, and provides strength to the asphalt at the same time to improve strength.

The preferred styrene isoprene styrene is preferably used styrene isoprene styrene having an elongation of 320 to 1,400%, and its use is recommended to be 1 to 25 parts by weight based on 100 parts by weight of asphalt.

The petroleum resin according to the present invention is intended to provide high adhesion to an asphalt concrete composition, specifically an asphalt concrete composition for preventing pavement settlement and securing support, and for this purpose, a petroleum resin commonly used in the art, preferably Aromatic petroleum resin, aliphatic petroleum resin, or a mixture thereof may be used, and particularly preferably, the melting temperature is 100 ° C or higher, the penetration is 3dmm or less, and the viscosity (140 ° C viscosity) is 50 to 500 cps at 140 ° C Resin is suitable, but petroleum resin with a melting temperature of 110 ° C to 140 ° C, penetration of 0.5 to 2dmm, and 140 ° C with a viscosity of 50 to 300 cps is recommended, but more preferred is aliphatic C- with a viscosity of 100 to 150 cps. 5 It is better to use petroleum resin.

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 aggregate according to the present invention is a mineral material for construction that can be agglomerated by a binder such as asphalt, styrene isoprenestyrene, and / or petroleum resin to form a lump, and is chemically stable.

The aggregate refers to sand, gravel, basalt, filthy stone, basalt, and other similar materials.

Specifically, the aggregate may further include basic malignant having an absorption rate of about 0.7% and / or bauxite having an absorption rate of about 5.40%.

Here, the average particle size of the aggregate is preferably used to be 0.08 to 13mm, specifically, 0.08mm or more and less than 4.76mm is referred to as fine aggregate, and more than 4.76mm is referred to as coarse aggregate. The preferred amount of aggregate is preferably 500 to 2,000 parts by weight based on 100 parts by weight of asphalt, and the mixing amount of the fine aggregate and coarse aggregate contained in the aggregate is not particularly limited and can be appropriately adjusted as necessary.

The fine powder aggregate according to the present invention is to improve water resistance and the like by being filled in the gap between the aggregate, specifically, fine aggregate and coarse aggregate, and any fine powder aggregate commonly used in the art having this purpose is used. It is also okay.

The size of the fine powder aggregate is preferably at least 0.08 mm, more preferably, it is recommended to have an average particle size of 0.001 to 0.079 mm, and the amount is preferably 30 to 150 parts by weight based on 100 parts by weight of asphalt.

In addition, the fine powder aggregate refers to fine powder, limestone fine powder, sand fine powder, gravel fine powder, basalt fine powder, calcite fine powder, basalt fine powder, and other similar materials.

The cellulose fiber according to the present invention is intended to provide tensile force and / or light weight, etc. by stress applied in the longitudinal-transverse direction of a cast surface formed of an asphalt concrete composition, and any cellulose fiber having this purpose may be used. Although it may be used, it is preferable to use natural cellulose fibers, and the amount thereof is preferably 0.1 to 2 parts by weight based on 100 parts by weight of asphalt.

Wax according to the present invention, asphalt concrete composition, specifically, to prevent the settlement of pavement and to secure the bearing power, the temperature required for the production and / or construction of the asphalt concrete composition is lowered compared to the conventional method, preferably, to be lowered by about 20 to 40 ° C. Therefore, to minimize the emission of carbon dioxide and harmful substances, any conventional wax of the art used for this purpose may be used, but preferably, polyethylene wax is preferably used, and the amount used is 100 parts by weight of asphalt It is preferably 0.1 to 2 parts by weight based on.

As a specific aspect, the wax according to the present invention may also use a mixture mixed with a modified fatty acid. In this case, the wax, specifically, the polyethylene wax is preferably mixed with the modified fatty acid in a weight ratio of 1: 0.1 to 0.6. .

Here, it is preferable that the polyethylene wax has a melting point of 95 to 125 ° C, and a melt viscosity at about 140 ° C of 80 to 400 cPs.

At this time, when the melting point of the polyethylene wax is less than 95 ° C, the stiffness of the asphalt may be weakened when mixed with the asphalt, and when the melting point exceeds 125 ° C, it is not sufficiently dispersed in the asphalt concrete composition for preventing settling and securing support. There is a risk of deterioration in properties.

In addition, when the melt viscosity at 140 ° C of the polyethylene wax is less than 80 cPs, the high temperature properties are weakened, which makes it unsuitable for asphalt for road pavement. When pouring, there may be a problem that the process is not properly performed.

On the other hand, the modified fatty acid used in combination with the wax serves to improve the moisture sensitivity of the asphalt concrete composition while compensating for the neutralization function of the polyethylene wax.

Specifically, the modified fatty acid is obtained by melt-reacting a fatty acid having 12 to 24 carbon atoms with at least one selected from the group consisting of calcium hydroxide, magnesium hydroxide, zinc hydroxide and zinc oxide, in view of the effect of improving the moisture sensitivity of the asphalt concrete composition. desirable.

In addition, the modified fatty acid preferably has a melting point in the range of 110 to 140 ° C. When the melting point of the modified fatty acid is outside the above range and is higher than the manufacturing temperature of the asphalt concrete composition, the effect of supplementing the neutralization function and improving the moisture sensitivity cannot be obtained.

The asphalt concrete composition according to the present invention, specifically, the asphalt concrete composition for preventing the settlement of pavement using the SIS and the improved fine powder aggregate and securing the supporting force, may further include one or more types of additives that are carried out in the following specific embodiments. have.

As a specific aspect, the asphalt concrete composition according to the present invention, specifically, the asphalt concrete composition for preventing pavement settlement and securing support force, is based on 100 parts by weight of asphalt to improve impact strength, elongation, tensile strength, and / or elasticity. To 15 parts by weight of glycidyl methacrylate (GMA) -based resin may be further included.

Preferred glycidyl methacrylate resins are at least one selected from ethylene-glycidyl methacrylate copolymer (EGMA), ethylene-butylacrylate-glycidyl methacrylate copolymer (EBA-GMA). It is better to use a mixture.

As another specific aspect, the asphalt concrete composition according to the present invention further comprises an amino group-containing siloxane (Aminofunctional siloxan) to effectively cure at room temperature and provide improved properties such as heat resistance, low temperature performance, chemical resistance, solvent resistance and oil resistance. can do.

The amino group-containing siloxane is not particularly limited, and examples thereof include aminomethyl polydimethylsiloxane, and the amount of use is 3 to 10 parts by weight based on 100 parts by weight of asphalt.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of tetraethylenepentamine (TEPA) based on 100 parts by weight of asphalt for viscosity control and strength enhancement. If pentamine is less than 1 part by weight, the effect is negligible, and if it exceeds 10 parts by weight, the amount is excessive, which may adversely affect the properties of the mastic asphalt composition.

As another aspect, the asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of sodium fluoride based on 100 parts by weight of asphalt to improve the filling and durability of the composition, sodium fluoride is primarily As a filler, but also serves to improve the durability of the secondary, it is possible to obtain the effect in the above content range.

As another specific aspect, the asphalt concrete composition according to the present invention absorbs moisture and prevents foaming, and prevents salt and / or moisture flowing from outside from moving into the composition to suppress corrosion of the composition. Asphalt may further include 1 to 10 parts by weight of sepiolite based on 100 parts by weight of the asphalt, the sepiolite is a mineral belonging to a monoclinic system having a hardness of 2 to 2.5 and a specific gravity of 2, and when it is included in the concrete composition, it is as described above. Effect.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of zinc chromate (zinc chromate) based on 100 parts by weight of asphalt in order to improve the strength, corrosion resistance and durability of the composition, If the content exceeds 5 parts by weight based on 100 parts by weight of asphalt, strength, corrosion resistance and durability are improved, but workability is lowered, and if it is less than 1 part by weight, separation phenomenon of the material is not good.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of acrylonitrile based on 100 parts by weight of asphalt in order to improve the durability and alkali resistance of the composition, the amount of which is used 100 parts by weight of asphalt When the amount is less than 1 part by weight based on parts, the effect of improving durability and alkali resistance is negligible, and when it exceeds 10 parts by weight, viscosity may increase and workability may be deteriorated.

As another specific aspect, the asphalt concrete composition according to the present invention is 5 to 15 parts by weight of dimethyl ammonium based on 100 parts by weight of asphalt in order to prevent the harmful components present in the composition from being eluted to the outside to cause environmental pollution Chloride may be further included.

As another specific aspect, the asphalt concrete composition according to the present invention further comprises 1 to 5 parts by weight of tetramethylene diisocyanate based on 100 parts by weight of asphalt to improve the water resistance, chemical resistance and / or adhesion of the composition. You can.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of trimethylolpropane triacrylate based on 100 parts by weight of asphalt to improve the hardness of the composition and reduce surface contamination.

As another specific aspect, the asphalt concrete composition according to the present invention may further include a starch phosphate ester, which is a type of anionic modified starch, in order to improve the absorbency, permeability and moisture retention of the composition, the amount of which is used in 100 parts by weight of asphalt As a guide, 0.1 to 2 parts by weight is good.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of emery powder (emery powder) based on 100 parts by weight of asphalt to improve abrasion resistance and chemical resistance of the composition. If the content is less than 1 part by weight based on 100 parts by weight of asphalt, improvement effects such as abrasion resistance and chemical resistance are negligible. If it exceeds 5 parts by weight, it is not economical and not good.

As another specific aspect, the asphalt concrete composition according to the present invention further comprises 1 to 5 parts by weight of ammonium nonylphenol ether sulfate (ammonium nonylphenol ether sulfate) based on 100 parts by weight of asphalt to improve the filling and durability of the composition You can.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 3 parts by weight of zinc sulfate (zinc sulphate) based on 100 parts by weight of asphalt.

Here, the zinc sulphate is widely used as an alkali-imparting agent, and when the zinc sulfate is included in the asphalt concrete composition, it restores alkalinity of roads, etc., to which the composition is applied, and can prevent corrosion by generating an inert film on the surface.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 3 parts by weight of polyindolocarbazole based on 100 parts by weight of asphalt for gelling the composition.

As another specific aspect, the asphalt concrete composition according to the present invention is 3 to 15 parts by weight based on 100 parts by weight of asphalt to improve the acid resistance, alkali resistance, weather resistance, flame retardancy, antibacterial, sound insulation, abrasion resistance and impact resistance of the composition It may further include a microscopic hollow sphere (microscopic hollow sphere) powder.

Here, the micro-hollow powder is a powder having a micro-hollow size of 30 to 100 micrometers based on aluminum silicate.

As another specific aspect, the asphalt concrete composition according to the present invention is based on 100 parts by weight of polymethylyl sesquioxane (polymetylsilsesquioxane) in order to improve the adhesion of the composition and fill the voids of the pavement surface to which the binder composition is applied. It may further include to 5 parts by weight.

As another specific aspect, the asphalt concrete composition according to the present invention retards the initial reaction, not only increases workability and quality stability, but also increases the interfacial adhesion with the surface to be adhered based on sodium oleate based on 100 parts by weight of asphalt 1 It may further include to 5 parts by weight.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 5 to 20 parts by weight of sericite based on 100 parts by weight of asphalt to improve the abrasion resistance, water resistance, fire resistance, and deodorization of the composition. Sericite is a mineral belonging to a monoclinic system, and has excellent stability, lubricity, and moisturizing properties, and thus, when it is included in a concrete composition, it has the above-described effects.

As another specific aspect, the asphalt concrete composition according to the present invention is 2 to 6 based on 100 parts by weight of 2-hydroxyethyl acrylate to promote curing of the composition and prevent the occurrence of cracks. It may further include by weight.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight based on 100 parts by weight of sorbitan monooleic acid ester to improve the strength and waterproofness of the composition.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 3 parts by weight of Kesan soda based on 100 parts by weight of asphalt to improve water resistance by being applied to a bridge surface and / or a structure to which the composition is attached. have.

As another specific aspect, the asphalt concrete composition according to the present invention is a polyvinyl pyrrolidone (polyvinyl pyrrolidone) based on 100 parts by weight of asphalt in order to improve the stability of the composition by stably dispersing the composition and absorbing and swelling moisture. It may further include 20 to 20 parts by weight.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 4 parts by weight of dibutylhydroxytoluene, based on 100 parts by weight of asphalt, in order to prevent the occurrence of rancidity and aging and improve stability of the composition.

As another specific aspect, the asphalt concrete composition according to the present invention improves physical performance such as adhesion and crack resistance, and improves durability such as salt damage, freeze-thaw resistance, and abrasion resistance. It may further include parts by weight of modified sulfur.

Here, the reformed sulfur refers to sulfur having improved properties by adding various substances to sulfur to improve the disadvantages of sulfur and to use it in various industrial fields.

At this time, the sulfur is one of the non-metal elements and is a material that is frequently generated in the desulfurization process of crude oil or natural gas. However, sulfur is dissolved at a temperature of 119 ° C or higher and has a property of being solid at room temperature, has a flash point of 207 ° C, and has an ignition property of 245 ° C as an autoignition temperature, which is difficult to use in various industrial fields. . Reforming sulfur was developed to solve this disadvantage.

For example, the reformed sulfur is sulfur, such as dicyclo pentadiene (DCPD), vinyl toluene, dipentene, olefin oligomer, tetra hydraulic indene, etc. It can be prepared by adding a modifier.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 5 to 20 parts by weight of gamma-aminopropyltriethoxysilane based on 100 parts by weight of asphalt to improve deterioration, heat resistance, and curability. .

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of itaconic acid based on 100 parts by weight of asphalt in order to maintain the dispersibility and fluidity of the composition for a certain period of time.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of cobalt sulfate based on 100 parts by weight of asphalt to improve the solubility and dispersibility of the composition.

As another specific aspect, the asphalt concrete composition according to the present invention is 1 to 10 based on 100 parts by weight of sulfoxypolyethylene glycol allyl ether to facilitate mixing between components constituting the composition and to improve the stability of the composition. It may further include, if the content is less than 1 part by weight based on 100 parts by weight of asphalt, it is not easy to mix the composition, and when it exceeds 10 parts by weight, stability is deteriorated due to excessive stability.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of sodium hexametaphosphate based on 100 parts by weight of asphalt to prevent ionization of the crack composition.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight based on 100 parts by weight of the polysilicon sludge to improve the compressive strength.

Here, the polysilicon sludge has a light gray color, discharged at a high water content with a water content of 62%, has a low density and light weight, and has a fine powder form of 7,122 cm 3 / g. It is composed of SiO ₂ and CaO and contains trace amounts of alkali components K ₂ O and Na ₂ O.

In addition, after drying the polysilicon sludge at 60 ° C. for 24 hours or more, the obtained crystalline phase consists of CaCO ₃ and contains a small amount of NaCl, a compound of Na ₂ O and Cl.

As another specific aspect, the asphalt concrete composition according to the present invention may further include xylene in an amount of 0.5 to 2 parts by weight based on 100 parts by weight of asphalt to control the viscosity of the composition and improve workability during construction. If it is less than 0.5 part by weight based on 100 parts by weight of this asphalt, the effect of viscosity control is negligible, and when it exceeds 2 parts by weight, it is not good to be excessive.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 0.5 to 3 parts by weight based on 100 parts by weight of glutamic acid to improve viscosity control and waterproof properties of the composition.

As another aspect, the asphalt concrete composition according to the present invention may further include 5 to 15 parts by weight of water-soluble polysaccharide based on 100 parts by weight of asphalt to improve the fluidity of the composition.

As another aspect, the asphalt concrete composition according to the present invention may further include 2 to 10 parts by weight of acetylated ranollan based on 100 parts by weight of asphalt in order to improve water resistance, heat resistance, flame resistance, and adhesion.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of a polyacrylate salt crosslinked based on 100 parts by weight of asphalt to prevent moisture penetration and improve durability.

The crosslinked polyacrylate salt fills the voids in the asphalt concrete composition, thereby preventing the penetration of moisture, thereby enhancing the durability of the interior. Specifically, the crosslinked polyacrylate salt is acrylic Refers to a material in which a polymer of a acrylate salt is crosslinked, and is made of a copolymer of acrylic acid and sodium acrylate containing acrylic acid as a crosslinking agent, and is (C ₃ H ₄ O ₂ .C ₃ H ₃ O ₂ Na) x.

The cross-linked polyacrylate salt formed of the above structure expands upon penetration of moisture when a cross-linked polyacrylate salt is used according to the introduction of a hydrophilic group in a three-dimensional network structure or a single chain structure through cross-linking between polymer chains. By filling the internal voids to prevent the penetration of moisture, and to improve the durability.

As another specific aspect, the asphalt concrete composition in the present invention may further include 1 to 10 parts by weight of dibutyl phthalate based on 100 parts by weight of asphalt for uniform mixing.

As another specific aspect, the asphalt concrete composition according to the present invention further comprises 1 to 5 parts by weight of poly 2-ethyl-2-oxazoline based on 100 parts by weight of asphalt to improve adhesion, durability, and / or chemical resistance, etc. can do.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 5 parts by weight of spinel (MgAL ₂ O ₄ ) based on 100 parts by weight of asphalt to improve watertightness due to affinity with components. have.

As another specific aspect, the asphalt concrete composition according to the present invention may further include 1 to 10 parts by weight of hafnium based on 100 parts by weight of asphalt to improve fire resistance and / or heat resistance.

As another specific aspect, the asphalt concrete composition in the present invention may further include 1 to 10 parts by weight of sodium tetrapolyphosphate based on 100 parts by weight of asphalt to improve crack resistance.

As another specific aspect, the asphalt concrete composition in the present invention may further include 5 to 20 parts by weight of clinker based on 100 parts by weight of asphalt in order to improve the bonding strength of the components constituting the composition.

As another specific aspect, the asphalt concrete composition in the present invention may further include 1 to 15 parts by weight of allantoin (Allantoin) based on 100 parts by weight of asphalt to improve the strength of the components constituting the composition.

The construction method of the asphalt concrete composition according to the present invention having the above-described configuration, specifically, the prevention of the settlement of pavement and the support of the asphalt concrete composition is as follows.

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

Based on 100 parts by weight of asphalt on the target surface after the rearranging step is completed, comprising 1 to 25 parts by weight of styrene isoprene, 1 to 25 parts by weight of petroleum resin, 0.1 to 2 parts by weight of cellulose fiber, and 0.1 to 2 parts by weight of wax Prime coating asphalt concrete pouring step of pouring the concrete composition for prime coating to a thickness of 1 to 20 mm using a mixing system input equipment;

Based on 100 parts by weight of asphalt on the target surface where the prime step of pouring the concrete for asphalt coating is completed, 1 to 25 parts by weight of styrene isoprene, 1 to 25 parts by weight of petroleum resin, 500 to 2,000 parts by weight of aggregate, 30 to 150 of fine powder aggregate Asphalt concrete composition pouring step of pouring 30 to 200 mm thick using the mixing system input equipment for the asphalt concrete composition for preventing pavement settlement and securing support, including parts by weight, 0.1 to 2 parts by weight of cellulose fiber, and 0.1 to 2 parts by weight of wax ;

Compaction step of compacting the cast-in-place asphalt concrete composition after the pouring step is completed; And

After the compaction step is completed may include a curing step for curing the asphalt concrete composition.

Here, the target surface may be applied to anything that is conventionally paved and constructed such as roads, bridges, and steel surfaces, and the mixing system input equipment is a typical asphalt provided with an injection hopper, a mixer, a heating part, a discharge part, and the like. Any type of mixing system input equipment may be used, but preferably, it can be moved by a moving means such as a truck.

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

[Example 1]

100g of asphalt mixture consisting of a mixture of 75g of straight asphalt with a penetration degree of 30g and 25g of natural asphalt made of Trinidad Lake asphalt, 15g of styrene isoprenestyrene with an elongation of about 850%, 15g of aliphatic C-5 petroleum resin with a viscosity of 130cps at 130 ℃, average Gravel having a particle size of about 3 mm and gravel having an average particle size of about 5 mm are mixed at a weight ratio of 5: 5, 1,200 g aggregate, 80 g of fine powder aggregate composed of limestone having an average particle size of about 0.03 mm, 1 g of natural cellulose fiber, and polyethylene wax 1g was mixed to prepare an asphalt concrete composition, specifically an asphalt concrete composition for preventing pavement settlement and securing support.

[Example 2]

The same procedure as in Example 1 was carried out, but instead of 1 g of polyethylene wax, 1 g of a mixture of modified fatty acids obtained by melt-reacting polyethylene wax and fatty acids having 12 to 24 carbon atoms with calcium hydroxide at a weight ratio of 1: 0.5 was used.

[Example 3]

It was carried out in the same manner as in Example 1, it was carried out by adding 8 g of ethylene-glycidyl methacrylate copolymer.

[Example 4]

It was carried out in the same manner as in Example 1, but was performed by further adding 7 g of aminomethylpolydimethylsiloxane.

[Example 5]

It was carried out in the same manner as in Example 1, it was carried out by adding 5 g of tetraethylene pentamine.

[Example 6]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of sodium fluoride.

[Example 7]

It was carried out in the same manner as in Example 1, it was carried out by adding 8 g of sepiolite.

[Example 8]

It was carried out in the same manner as in Example 1, it was carried out by adding 2 g of zinc chromate.

[Example 9]

It was carried out in the same manner as in Example 1, 5 g of acrylonitrile was further added.

[Example 10]

It was carried out in the same manner as in Example 1, but was performed by further adding 9 g of dimethyl ammonium chloride.

[Example 11]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of tetramethylene diisocyanate.

[Example 12]

It was carried out in the same manner as in Example 1, 3 g of trimethylolpropane triacrylate was further added.

[Example 13]

It was carried out in the same manner as in Example 1, it was carried out by adding 1g of starch phosphate ester.

[Example 14]

It was carried out in the same manner as in Example 1, 3 g of emery powder was further added.

[Example 15]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of ammonium noniphenol ether sulfate.

[Example 16]

It was carried out in the same manner as in Example 1, but was performed by adding 2 g of zinc sulfate.

[Example 17]

It was carried out in the same manner as in Example 1, but was performed by further adding 2 g of polyindolocarbazole.

[Example 18]

It was carried out in the same manner as in Example 1, but was performed by adding 8 g of an aluminum silicate powder having a size of about 70 micrometers.

[Example 19]

It was carried out in the same manner as in Example 1, but was carried out by adding 3 g of polymethylsilsesquioxane.

[Example 20]

It was carried out in the same manner as in Example 1, it was carried out by adding 3 g of sodium oleate.

[Example 21]

It was carried out in the same manner as in Example 1, it was carried out by adding 6g sericite.

[Example 22]

It was carried out in the same manner as in Example 1, 3 g of 2-hydroxyethyl acrylate was further added.

[Example 23]

It was carried out in the same manner as in Example 1, it was carried out by adding 3 g of sorbitan monooleic acid ester.

[Example 24]

It was carried out in the same manner as in Example 1, it was carried out by adding 2 g of Kesan soda.

[Example 25]

It was carried out in the same manner as in Example 1, it was carried out by adding 12 g of polyvinylpyrrolidone.

[Example 26]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of dibutylhydroxytoluene.

[Example 27]

It was carried out in the same manner as in Example 1, but was carried out by adding 8 g of modified sulfur prepared by adding dicyclopentadiene to sulfur.

[Example 28]

It was carried out in the same manner as in Example 1, but was performed by further adding 12 g of gamma-aminopropyltriethoxysilane.

[Example 29]

It was carried out in the same manner as in Example 1, it was carried out by adding 5 g of itaconic acid.

[Example 30]

It was carried out in the same manner as in Example 1, but was performed by further adding 3 g of cobalt sulfate.

[Example 31]

It was carried out in the same manner as in Example 1, but was performed by adding 5 g of sulfoxypolyethylene glycol allyl ether.

[Example 32]

It was carried out in the same manner as in Example 1, it was carried out by adding 5g of sodium hexametaphosphate.

[Example 33]

It was carried out in the same manner as in Example 1, 3 g of polysilicon sludge was further added.

[Example 34]

It was carried out in the same manner as in Example 1, it was carried out by adding 1 g of xylene.

[Example 35]

It was carried out in the same manner as in Example 1, it was carried out by adding 2 g of glutamic acid.

[Example 36]

It was carried out in the same manner as in Example 1, it was carried out by adding 10g of polysaccharide.

[Example 37]

It was carried out in the same manner as in Example 1, but was performed by adding 6 g of acetylated ranollan.

[Example 38]

It was carried out in the same manner as in Example 1, it was carried out by adding a crosslinked polyacrylate salt 5g.

[Example 39]

It was carried out in the same manner as in Example 1, but was performed by adding 5 g of dibutyl phthalate.

[Example 40]

It was carried out in the same manner as in Example 1, 3 g of poly 2-ethyl-2-oxazoline was further added.

[Example 41]

It was carried out in the same manner as in Example 1, it was carried out by adding 3g spinel.

[Example 42]

It was carried out in the same manner as in Example 1, it was carried out by adding 5g of hafnium.

[Example 43]

It was carried out in the same manner as in Example 1, but was performed by adding 5 g of sodium tetrapolyphosphate.

[Example 44]

It was carried out in the same manner as in Example 1, it was carried out by adding a further clinker 10g.

[Example 45]

It was carried out in the same manner as in Example 1, but was performed by adding 10 g of allantoin.

[Example 46]

It was carried out in the same manner as in Example 1, but it was carried out by further adding all the additives added according to Examples 3 to 45.

[Experiment]

After preparing an asphalt layer having a thickness of about 60 mm using the composition prepared according to the examples, low temperature (at -10 ° C) curability, cracking, indirect tensile strength, strain strength, compressive strength, etc. were measured, and the thickness was about 50 mm. It was shown in Table 1 by measuring the dynamic stability by preparing an asphalt layer of.

Here, the dynamic stability was measured through the strain strength test and test by the Kim Test by evaluating the plastic strain resistance, and the indirect strength was conducted to evaluate the crack resistance, and the compressive strength was measured using an 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 67 none 1885 0.87 5.67 25.2 81 Example 2 66 none 1881 0.88 5.55 25.8 80 Example 3 67 none 1898 0.86 5.79 26.6 82 Example 4 66 none 1876 0.84 5.93 24.0 79 Example 5 68 none 1958 0.87 5.84 25.6 81 Example 6 67 none 1953 0.86 5.81 25.7 83 Example 7 67 none 1932 0.91 5.86 23.2 79 Example 8 65 none 1879 0.90 5.94 25.7 81 Example 9 64 none 1867 0.94 5.89 26.1 82 Example 10 67 none 1932 0.91 5.83 27.0 83 Example 11 67 none 1941 0.87 5.67 28.4 82 Example 12 68 none 1947 0.89 5.70 28.9 84 Example 13 67 none 1932 0.88 5.56 26.4 82 Example 14 66 none 1868 0.87 5.82 26.8 85 Example 15 67 none 1991 0.86 5.72 26.3 84 Example 16 65 none 1989 0.87 5.45 27.1 83 Example 17 67 none 1984 0.91 5.76 25.6 81 Example 18 67 none 1880 0.86 5.91 24.8 80 Example 19 67 none 1851 0.85 6.01 23.2 79 Example 20 67 none 1933 0.86 5.96 25.4 84 Example 21 65 none 1885 0.85 5.88 26.1 81 Example 22 66 none 1973 0.87 5.86 27.1 85 Example 23 67 none 1948 0.88 5.87 25.6 84 Example 24 67 none 1976 0.87 5.53 25.7 86 Example 25 68 none 1977 0.88 5.55 25.2 82 Example 26 67 none 1887 0.86 5.50 25.8 81 Example 27 68 none 1886 0.89 5.56 26.1 82 Example 28 69 none 1829 0.86 5.57 27.7 84 Example 29 67 none 1934 0.87 5.57 25.6 84 Example 30 67 none 1863 0.89 5.59 25.7 84 Example 31 68 none 1923 0.84 5.79 25.9 83 Example 32 66 none 1933 0.85 6.01 25.6 85 Example 33 67 none 1892 0.86 6.13 26.3 82 Example 34 65 none 1961 0.84 5.94 26.1 83 Example 35 65 none 1942 0.83 6.13 27.0 81 Example 36 67 none 1947 0.87 5.84 25.6 84 Example 37 67 none 1960 0.86 5.86 25.7 83 Example 38 67 none 1945 0.86 5.81 26.4 83 Example 39 68 none 1953 0.86 5.82 26.8 84 Example 40 66 none 1962 0.89 5.75 24.6 82 Example 41 67 none 1849 0.85 5.65 25.4 81 Example 42 65 none 1941 0.89 5.61 27.3 82 Example 43 68 none 1854 0.87 5.67 27.3 80 Example 44 66 none 1926 0.84 5.91 25.7 79 Example 45 66 none 1935 0.87 5.93 26.8 83 Example 46 67 none 1891 0.88 6.25 28.2 84

As shown in Table 1, low-temperature curing properties, cracking properties, dynamic stability, indirect tensile strength and strain strength of the examples using the asphalt concrete composition are good, and the compressive strength is 75 megapascals or more at the time when 28 days have elapsed. It was confirmed that all the modified asphalt concrete compositions of the Examples were high strength.

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 its technical spirit or essential features. Therefore, it should be understood that the above-described embodiments are all illustrative and not restrictive. The scope of the present invention should be construed to include all modified or modified forms derived from the equivalent concept and meaning and scope of the claims, which will be described later, rather than the detailed description.

Claims (5)

Based on 100 parts by weight of asphalt,
Styrene isoprene 1 to 25 parts by weight;
1 to 25 parts by weight of an aliphatic C-5 petroleum resin having a viscosity of 130 cps at 140 ° C;
Aggregate 500 to 2,000 parts by weight;
30 to 150 parts by weight of fine powder aggregate;
Cellulose fiber 0.1 to 2 parts by weight; And
In the asphalt concrete composition for preventing the settlement of pavement and securing the support, comprising 0.1 to 2 parts by weight of wax,
The amino group-containing siloxane further comprises 3 to 10 parts by weight based on 100 parts by weight of asphalt,
Sodium fluoride further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Sepiolite further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
Zinc chromate further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Tetramethylene diisocyanate further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Starch phosphate ester further comprises 0.1 to 2 parts by weight based on 100 parts by weight of asphalt,
Emery powder further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
The zinc sulfate further comprises 1 to 3 parts by weight based on 100 parts by weight of asphalt,
Sericite further comprises 5 to 20 parts by weight based on 100 parts by weight of asphalt,
2-hydroxyethyl acrylate further comprises 2 to 6 parts by weight based on 100 parts by weight of asphalt,
Polyvinylpyrrolidone further comprises 5 to 20 parts by weight based on 100 parts by weight of asphalt,
Dibutyl hydroxy toluene further comprises 1 to 4 parts by weight based on 100 parts by weight of asphalt,
The modified sulfur further contains 3 to 15 parts by weight based on 100 parts by weight of asphalt,
Gamma-aminopropyl triethoxysilane is further included in an amount of 5 to 20 parts by weight based on 100 parts by weight of asphalt,
Xylene further comprises 0.5 to 2 parts by weight based on 100 parts by weight of asphalt,
Glutamic acid further comprises 0.5 to 3 parts by weight based on 100 parts by weight of asphalt,
The acetylated ranollan further comprises 2 to 10 parts by weight based on 100 parts by weight of asphalt,
The crosslinked polyacrylate salt further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
Dibutyl phthalate further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
Spinel further comprises 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Hafnium further comprises 1 to 10 parts by weight based on 100 parts by weight of asphalt,
The clinker further comprises 5 to 20 parts by weight based on 100 parts by weight of asphalt,
Asphalt concrete composition for preventing pavement settlement and securing support, further comprising 1 to 15 parts by weight of allantoin based on 100 parts by weight of asphalt.
delete delete delete A rearranging step of arranging the target surface to be constructed;
Based on 100 parts by weight of asphalt on the target surface after the rearranging step is completed, comprising 1 to 25 parts by weight of styrene isoprene, 1 to 25 parts by weight of petroleum resin, 0.1 to 2 parts by weight of cellulose fiber, and 0.1 to 2 parts by weight of wax Prime coating asphalt concrete pouring step of pouring the concrete composition for prime coating to a thickness of 1 to 20 mm using a mixing system input equipment;
Based on 100 parts by weight of asphalt on the target surface of the primed asphalt concrete pouring step for the prime coating, 1 to 25 parts by weight of styrene isoprestyrene, 1 to 25 parts by weight of aliphatic C-5 petroleum resin having a viscosity of 130 cps at 130 ° C, aggregate 500 To 2,000 parts by weight, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of cellulose fiber, and 0.1 to 2 parts by weight of wax to asphalt concrete composition for preventing settling and securing support, 100 parts by weight of an amino group-containing siloxane in asphalt 3 to 10 parts by weight is further included, sodium fluoride is further included in 1 to 5 parts by weight based on 100 parts by weight of asphalt, sepiolite is further included in 1 to 10 parts by weight based on 100 parts by weight of asphalt, zinc Chromate is further contained in 1 to 5 parts by weight based on 100 parts by weight of asphalt, tetramethylene diisocyanate It further contains 1 to 5 parts by weight based on 100 parts by weight, further comprises 0.1 to 2 parts by weight based on 100 parts by weight of starch phosphate ester, and 1 to 5 parts by weight based on 100 parts by weight of asphalt. Containing, further comprising 1 to 3 parts by weight based on 100 parts by weight of asphalt, further comprising 5 to 20 parts by weight based on 100 parts by weight of asphalt, 100 parts by weight of 2-hydroxyethyl acrylate It further contains 2 to 6 parts by weight based on parts, and further comprises 5 to 20 parts by weight based on 100 parts by weight of polyvinylpyrrolidone, and 1 to 4 parts by weight based on 100 parts by weight of asphalt. It further includes, 3 to 15 parts by weight based on 100 parts by weight of the modified sulfur asphalt, gamma-aminopropyl triethoxysilane It further comprises 5 to 20 parts by weight based on 100 parts by weight of spalt, xylene further contains 0.5 to 2 parts by weight based on 100 parts by weight of asphalt, and glutamic acid further contains 0.5 to 3 parts by weight based on 100 parts by weight of asphalt, , Acetylated ranollan further comprises from 2 to 10 parts by weight based on 100 parts by weight of asphalt, and further comprises 1 to 10 parts by weight based on 100 parts by weight of crosslinked polyacrylate salt, dibutylphthalate as asphalt 100 It further contains 1 to 10 parts by weight based on parts by weight, and further includes 1 to 5 parts by weight based on 100 parts by weight of asphalt, and further contains 1 to 10 parts by weight based on 100 parts by weight of asphalt, and clinker Pavement further comprising 5 to 20 parts by weight based on 100 parts by weight of asphalt, and further containing 1 to 15 parts by weight based on 100 parts by weight of allantoin And a retention force to prevent securing asphalt concrete composition by using a mixing device 30 to the system input for asphalt compositions poured in 200mm thickness pouring step;
Compaction step of compacting the cast-in-place asphalt concrete composition after the pouring step is completed; And
After the compaction step is completed, a method for constructing an asphalt concrete composition for preventing settlement of pavement and securing a supporting force, comprising a curing step for curing an asphalt concrete composition.