KR102207017B1 - Waterproof Asphalt Concrete Compositions Having Urethane Resin, Stylene Isoprene Stylene and Aggregate of Improved Particle-Size Distribution and Constructing Methods Using Thereof - Google Patents

Abstract

The present invention provides a waterproof asphalt concrete composition which comprises, based on 100 parts by weight of asphalt: 1 to 15 parts by weight of a urethane resin; 1 to 25 parts by weight of styrene isoprene styrene (SIS); 1 to 25 parts by weight of a styrene ethylene butylene styrene copolymer; 1 to 25 parts by weight of a petroleum resin; 500 to 2,000 parts by weight of aggregates; 30 to 150 parts by weight of fine powder aggregates; 0.1 to 2 parts by weight of sodium benzoate; 0.1 to 2 parts by weight of cellulose fiber; 0.1 to 2 parts by weight of wax; and 0.1 to 2 parts by weight of an antioxidant. The waterproof asphalt concrete composition according to the present invention, specifically, the waterproof asphalt concrete composition comprising a urethane resin, SIS, and fine powder aggregate having an improved aggregate particle size has high cohesion and high bonding force and thus has excellent waterproof performance, has good viscoelasticity and durability, can prevent plastic deformation, aging, and/or peeling from occurring easily, can prevent infiltrating water and portholes, and can enable a placing process to be easily carried out at low costs.

Description

Waterproof Asphalt Concrete Compositions Having Urethane Resin, Stylene Isoprene Stylene and Aggregate of Improved Particle-Size Distribution and Constructing Methods Using Thereof}, including urethane resin, SIS, and fine powder aggregate of improved aggregate particle size.

The present invention relates to a waterproof asphalt concrete composition comprising a urethane resin, SIS, and fine powder aggregate of an improved aggregate particle size, and a construction method thereof, and more particularly, to a urethane that improves asphalt concrete properties such as waterproofness, adhesion, and crack reduction. It relates to a waterproof asphalt concrete composition comprising resin, SIS and fine powder aggregate of improved aggregate particle size, and a construction method thereof.

In general, as the industrial society develops, the use rate of vehicles increases, and accordingly, safety facilities for the construction of many roads and accident prevention are installed for smooth traffic and safety.

In particular, as a road paving method used in the construction of such a road, an asphalt pavement having a base roadbed and a surface layer having a thickness of 2 to 10cm or cement-concrete pavement consisting of a roadbed and a concrete plate thereon is mainly made.

Meanwhile, in general roads, information is displayed by coating the road surface with a resin composition, specifically paint, to provide information to vehicles or pedestrians.

In addition, speed bumps are installed in the form of protruding from the road surface in front of general crosswalks, school zones, or alleys where there is a concern about safety accidents due to speeding. It is installed to protrude to a certain height, and a coating film is formed of urethane or epoxy so that yellow and white bands are repeated on the surface of the speed bump so that the vehicle being driven can be identified from a long distance.

On the other hand, in general, a bridge is a generic term for an elevated structure constructed to pass the upper part of rivers, coasts, and roads, and the surface of such a bridge is paved so that vehicles can pass smoothly. Form a pavement layer.

The bridge pavement as described above is a part that directly transmits a traffic load and is required not only to have suitable strength and crack resistance, but also to have waterproof performance because it is exposed to moisture such as rainwater. It is required to have low chlorine ion permeability in order to prevent corrosion of the reinforcing bar.

Korean Patent No. 0641021 discloses a waterproof asphalt, characterized by including an emulsified asphalt and tourmaline.

On the other hand, as the bridge paving method, conventional concrete paving methods or asphalt concrete paving methods have been known and widely used.

Here, ascon used in the asphalt concrete pavement is a name short for asphalt concrete, and is also referred to as a heated asphalt mixture for pavement (KS F 2349 standard), hot mix asphalt (HMA), and the like.

General ascon is manufactured by mixing an asphalt binder, coarse aggregate, sand and/or filler at high temperature, and is widely used as a material for road pavement.

In particular, ascon road pavement construction method using asphalt concrete has been mainly implemented as a general road paving method.

These asphalt concrete pavements occasionally undergo plastic deformation along the running track 5 years after construction, causing serious driving problems, or even if there is no plastic deformation problem, the pavement material gradually ages with the passage of time, eventually causing severe cracks. There is a problem that must be periodically maintained and maintained.

Accordingly, in order to minimize the cost of maintenance, it is required to develop an ascon composition that minimizes plastic deformation of a paved road using ascon, and does not age for a long time and does not easily peel off.

In particular, since 2000, modified concrete, which has improved the performance of concrete with fast-setting 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 water permeability and freezing and thawing 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 of early freezing in winter is inferior to that of conventional asphalt concrete, and the heat absorption rate is low, as in Korea, as in Korea In an environment where) is severe, there is a problem that cracks, surface peeling, and falling out (portholes) occur due to temperature stress.

The present invention has been created to overcome the above-described problems, and provides a waterproof asphalt concrete composition that has good waterproofness and durability, and that plastic deformation, aging, and/or peeling do not easily occur, and that can prevent water permeation and portholes. I want to.

The present invention

Based on 100 parts by weight of asphalt,

1 to 15 parts by weight of urethane resin;

1 to 25 parts by weight of styrene isoprene styrene;

1 to 25 parts by weight of a styrene ethylene butylene styrene copolymer;

1 to 25 parts by weight of petroleum resin;

500 to 2,000 parts by weight of aggregate;

30 to 150 parts by weight of fine powder aggregate;

0.1 to 2 parts by weight of sodium benzoate;

0.1 to 2 parts by weight of cellulose fibers;

0.1 to 2 parts by weight of wax; And

It provides a waterproof asphalt concrete composition comprising 0.1 to 2 parts by weight of an antioxidant.

In addition, the present invention

A base layer manufacturing step of manufacturing a base layer by paving the asphalt concrete composition to a thickness of 5 to 12 cm on the target surface to be constructed; And

Based on 100 parts by weight of asphalt on top of the base layer, 1 to 15 parts by weight of urethane resin, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of styrene ethylene butylene styrene copolymer, 1 to 25 parts by weight of petroleum resin, Waterproof including 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of sodium benzoate, 0.1 to 2 parts by weight of cellulose fiber, 0.1 to 2 parts by weight of wax, and 0.1 to 2 parts by weight of antioxidant It provides a waterproof asphalt concrete composition construction method comprising the step of forming a waterproof layer of paving the asphalt concrete composition to a thickness of 1 to 3cm to form a waterproof layer.

In addition, the present invention

A chipping step of removing deterioration (corrosion) on the surface of the concrete structure;

A high pressure washing step for removing foreign substances or debris from the surface of the concrete structure;

A rust removal step of removing rust of the exposed reinforcing bars from the concrete structure;

Based on 100 parts by weight of asphalt on the chipped portion, 1 to 15 parts by weight of urethane resin, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of styrene ethylene butylene styrene copolymer, 1 to 25 parts by weight of petroleum resin, Waterproof including 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of sodium benzoate, 0.1 to 2 parts by weight of cellulose fiber, 0.1 to 2 parts by weight of wax, and 0.1 to 2 parts by weight of antioxidant Section repair step of restoring the section by pouring the asphalt concrete composition;

A compaction step of compacting after the end of the section repair step is completed; And

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

The waterproof asphalt concrete composition according to the present invention, specifically comprising a urethane resin, SIS, and fine powder aggregate of an improved aggregate particle size, has high cohesion and high bonding power, so it has excellent waterproofness, good viscoelasticity and durability. , Plastic deformation, aging, and/or peeling does not easily occur, and there is an effect such as preventing permeation water and portholes, and enabling the pouring process to be easily performed at low cost.

Hereinafter, the present invention will be described in detail.

In one aspect, the present invention based on 100 parts by weight of asphalt, 1 to 15 parts by weight of a urethane resin; 1 to 25 parts by weight of styrene isoprene styrene; 1 to 25 parts by weight of a styrene ethylene butylene styrene copolymer; 1 to 25 parts by weight of petroleum resin; 500 to 2,000 parts by weight of aggregate; 30 to 150 parts by weight of fine powder aggregate; 0.1 to 2 parts by weight of sodium benzoate; 0.1 to 2 parts by weight of cellulose fibers; 0.1 to 2 parts by weight of wax; And it provides a waterproof asphalt concrete composition comprising 0.1 to 2 parts by weight of an antioxidant.

In another aspect, the present invention is a base layer manufacturing step of manufacturing a base layer by paving the asphalt concrete composition to a thickness of 5 to 12cm on the target surface to be constructed; And

Based on 100 parts by weight of asphalt on top of the base layer, 1 to 15 parts by weight of urethane resin, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of styrene ethylene butylene styrene copolymer, 1 to 25 parts by weight of petroleum resin, Waterproof including 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of sodium benzoate, 0.1 to 2 parts by weight of cellulose fiber, 0.1 to 2 parts by weight of wax, and 0.1 to 2 parts by weight of antioxidant It provides a waterproof asphalt concrete composition construction method comprising the step of forming a waterproof layer of paving the asphalt concrete composition to a thickness of 1 to 3cm to form a waterproof layer.

In another aspect, the present invention is a chipping step of removing the deteriorated portion (corrosion portion) of the concrete structure surface; A high pressure washing step for removing foreign substances or debris from the surface of the concrete structure; A rust removal step of removing rust of the exposed reinforcing bars from the concrete structure; Based on 100 parts by weight of asphalt on the chipped portion, 1 to 15 parts by weight of urethane resin, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of styrene ethylene butylene styrene copolymer, 1 to 25 parts by weight of petroleum resin, Waterproof including 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of sodium benzoate, 0.1 to 2 parts by weight of cellulose fiber, 0.1 to 2 parts by weight of wax, and 0.1 to 2 parts by weight of antioxidant Section repair step of restoring the section by pouring the asphalt concrete composition; A compaction step of compacting after the end of the section repair step is completed; And it provides a waterproof asphalt concrete composition construction method comprising a curing step of curing after the compaction step is finished.

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

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

The asphalt mixture, specifically natural asphalt mixture, is not particularly limited as long as it is a natural asphalt mixture commonly used in the art, but preferably straight asphalt, Trinidad lake asphalt, Trinidad epure asphalt or It is preferable to use a mixture of at least one or more selected from these, more preferably a mixture of straight asphalt and natural asphalt having a penetration degree of 20 to 40, such as Trinidadrake asphalt and/or Trinidad ePure asphalt, more preferably Preferably, it is recommended to use a mixture of 70 to 80% by weight of straight asphalt having a penetration degree of 20 to 40 and 20 to 30% by weight of natural asphalt consisting of Trinidad Drake asphalt or Trinidad Epure asphalt.

Here, the straight asphalt is a conventional asphalt obtained by distilling or distilling raw materials with petroleum asphalt, and having a degree of penetration of 20 to 40 is better because it is easier to construct on a road. It is better to mix it with the asphalt mixture.

The straight asphalt is preferably contained in the asphalt mixture in an amount of 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 if it exceeds 80% by weight, the fluidity may be lowered.

In addition, the natural asphalt serves to improve the fluidity of the asphalt concrete composition of the present invention and to increase deformation resistance, sliding 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 insignificant, and exceeds 30% by weight. In this case, the asphalt for bridge surface pavement 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 waterproof asphalt concrete composition comprising the waterproof asphalt concrete composition according to the present invention, specifically a urethane resin, SIS, and fine powder aggregate of improved aggregate particle size is based on 100 parts by weight of asphalt.

The urethane resin according to the present invention is included in a waterproof asphalt concrete composition including a waterproof asphalt concrete composition, specifically a urethane resin, SIS, and a fine powder aggregate of an improved aggregate particle size, to provide adhesion, chemical resistance, waterproofness, etc. , If it is a urethane resin commonly used in the art for this purpose is not particularly limited.

The amount of the urethane resin to be used is not particularly limited, but is preferably 1 to 15 parts by weight based on 100 parts by weight of asphalt.

Styrene isoprene stylene (SIS) according to the present invention suppresses the occurrence of cracks in the waterproof asphalt concrete composition including a waterproof asphalt concrete composition, specifically a urethane resin, SIS, and fine powder aggregate of an improved aggregate particle size, and construction It not only prevents falling off from the surface, but also provides caking power and improves strength.

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

Styrene Ethylene Butylene Styrene (SEBS) copolymer according to the present invention is a polymer having excellent stability in which all double bonds in butadiene of a styrene butadiene styrene block copolymer (SBS) resin are saturated with hydrogenation It can add elasticity to waterproof asphalt concrete composition.

In addition, the styrene ethylene-butylene styrene is a block copolymer based on styrene and butadiene and has rubber-like elasticity, and while most rubbers are not easily molded due to crosslinking, they can be reshaped into thermoplastic rubber. Therefore, when heated above the Tg temperature of polystyrene, the domains soften and flow with shearing force, and when cooled, the domains can be reproduced again, so it can be easily molded using a thermoplastic molding method.

On the other hand, since the styrene ethylene butylene styrene copolymer is not thermally decomposed, there is no fear of harmful odors to the human body, elastic resilience and permanent deformation resistance are improved, and durability, cold resistance, abrasion resistance, and resilience are excellent.

A preferred amount of the styrene ethylene butylene styrene copolymer is not particularly limited, but 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 waterproof asphalt concrete composition, and for this purpose, a petroleum resin commonly used in the art, preferably an aromatic petroleum resin, an aliphatic petroleum resin, or a mixture thereof Petroleum resins with a melting temperature of 100° C. or higher and a penetration degree of 3 dmm or less, and a viscosity of 50 to 500 cps at 140° C. (hereinafter, 140° C. viscosity) are suitable, but recommended, a melting temperature of 110° C. A petroleum resin having a viscosity of from 50 to 300 cps and a penetration degree of from 0.5 to 2 dmm and a viscosity of from 140 to 140°C is good, but more recommended is to use an aliphatic C-5 petroleum resin having a viscosity of from 100 to 150 cps.

A preferred amount of petroleum resin used is not particularly limited, but it is recommended that it is 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 form a lump by being aggregated by a binder such as asphalt, urethane resin, styrene isoprene styrene and/or styrene ethylene butylene styrene copolymer, and is chemically stable.

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

Specifically, it may further include a basic malt having an absorption rate of about 0.7% as the aggregate.

Here, it is preferable to use the aggregate having an average particle size of 0.08 to 13 mm, specifically, those having an average particle size of 0.08 mm or more and less than 4.76 mm are referred to as fine aggregates, and those of 4.76 mm or more are referred to as coarse aggregates.

The preferred amount of aggregate is preferably 500 to 2,000 parts by weight based on 100 parts by weight of asphalt, and the amount of fine aggregate and coarse aggregate contained in the aggregate is not particularly limited, and thus can be appropriately adjusted as needed.

The fine powder aggregate according to the present invention is to be filled in the pores between the aggregate, specifically fine aggregate and coarse aggregate, to improve waterproofness, etc., and any fine powder aggregate commonly used in the art for this purpose is used. It is also okay.

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

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

Sodium benzoate according to the present invention provides the viscoelasticity and/or elasticity of a waterproof asphalt concrete composition comprising a urethane resin, SIS, and fine powder aggregate of improved aggregate particle size.

The preferred amount of sodium benzoate can be changed according to the user's choice, but it is recommended that it is 0.1 to 2 parts by weight based on 100 parts by weight of asphalt, and the effect is less than 0.1 parts by weight based on 100 parts by weight of asphalt. It is insignificant, and if it exceeds 2 parts by weight, it becomes excessive and may reduce physical properties, which is not good.

The cellulose fiber according to the present invention is to provide tensile strength and/or light weight due to stress applied in the longitudinal-transverse direction of the poured surface formed of the waterproof asphalt concrete composition, and any cellulose fiber having this purpose is used. It is also okay, but 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 is a waterproof asphalt concrete composition, specifically urethane resin, SIS, and lowering the temperature required for the production and / or construction of a waterproof asphalt concrete composition comprising fine powder aggregate of improved aggregate particle size compared to the conventional method, preferably It is intended to minimize the emission of carbon dioxide and harmful substances by allowing it to be lowered by about 20 to 40°C, and any conventional wax used for this purpose may be used, but preferably polyethylene wax is used. It is good, and the amount is preferably 0.1 to 2 parts by weight based on 100 parts by weight of asphalt.

As a specific embodiment, the wax according to the present invention may be a mixture mixed with a modified fatty acid. In this case, the wax, specifically polyethylene wax, is preferably mixed with a 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 of 80 to 400 cPs at about 140°C.

At this time, if 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 if the melting point exceeds 125°C, it is not sufficiently dispersed in the waterproof asphalt concrete composition, so there is a concern of physical property degradation. have.

In addition, when the melt viscosity of polyethylene wax at 140°C is less than 80 cPs, the high-temperature properties are weakened, making it unsuitable as asphalt for road pavement.When the melt viscosity at 140°C exceeds 400 cPs, the viscosity of the asphalt becomes too high to produce asphalt concrete composition and There may be a problem that the process is not performed properly during pouring.

On the other hand, the modified fatty acid used by mixing with the wax serves to improve the moisture sensitivity of the asphalt concrete composition while supplementing the neutralization function of the polyethylene wax.

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

Preferred antioxidants may be amine-based, bisphenol-based, monophenol-based and sulfur-based antioxidants, and the amount thereof is preferably 0.1 to 2 parts by weight based on 100 parts by weight of asphalt.

Specifically, the antioxidant according to the present invention is a low-molecular/high-molecular phenolic antioxidant, for example 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 waterproof asphalt concrete composition according to the present invention, specifically a urethane resin, SIS, and a waterproof asphalt concrete composition comprising fine powder aggregate of improved aggregate particle size further includes one or more additives implemented in the following specific embodiments can do.

As a specific embodiment, the waterproof asphalt concrete composition according to the present invention, specifically a urethane resin, SIS, and a waterproof asphalt concrete composition comprising a fine powder aggregate of an improved aggregate particle size, cracks and falls out even after rapid curing after the composition is placed. In order to improve and provide processability, adhesion and stability of the composition, the polyvinylidene fluoride resin may be further included in an amount of 0.1 to 4 parts by weight based on 100 parts by weight of asphalt.

In another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is used to improve the adsorption and adhesion of the composition, and to improve the reaction rate when the composition is mixed. It may further include 0.1 to 3 parts by weight of 2-bromopyridine (2-Bromopyridine) based on 100 parts by weight.

In another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of improved aggregate particle size according to the present invention is 100 weight of asphalt to prevent separation of the material due to the specific gravity difference between the components of the composition. It may further include 0.1 to 3 parts by weight of welan gum.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to 4 parts by weight based on 100 parts by weight of asphalt to prevent shrinkage during curing of the composition. Neopentyl glycol (Neopentylglycol, NPG) may be further included.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of improved aggregate particle size according to the present invention is 0.1 to 100 parts by weight of asphalt so that the components contained in the composition are easily mixed with water. It may further include 5 parts by weight of plaster (plaster).

Here, when the amount of the plaster used is less than 0.5 parts by weight based on 100 parts by weight of asphalt, it is difficult for various components included in the composition to be easily mixed with water, and when it exceeds 5 parts by weight, strength and chemical resistance are deteriorated. There is.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of the improved aggregate particle size according to the present invention improves plasticity and water retention of the composition, and 100 parts by weight of asphalt to prevent cracking and increase strength It may further contain 0.1 to 5 parts by weight of cocobetaine.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to 5 parts by weight based on 100 parts by weight of asphalt in order to improve strength, abrasion resistance and fire resistance. It may further include a gibbsite.

Here, when the amount of gibsite is less than 0.1 parts by weight, the performance improvement effect may be weak, and when the amount of gibsite is more than 5 parts by weight, workability decreases and manufacturing cost increases, which is not economical.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is 0.1 to 5 parts by weight based on 100 parts by weight of asphalt in order to improve strength, fire resistance and corrosion resistance. It may further contain cerium.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is ferrite (ferrite) by 100 weight of asphalt to improve the long-term strength, corrosion resistance and fire resistance of the composition. It may further contain 1 to 3 parts by weight based on parts, and if the content exceeds 3 parts by weight based on 100 parts by weight of asphalt, it exhibits fast curing characteristics, but the economical efficiency is deteriorated. If it is less than 1 part by weight, the above improvement effect is It is insignificant and not good.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is 100 parts by weight of asphalt to improve the strength, fire resistance, abrasion resistance, and corrosion resistance of the composition. It may further include 0.1 to 4 parts by weight of halloysite, as a clay mineral in which aluminum and silicon are contained in a ratio of about 1:1. Manifestation.

In another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is 0.1 to 4 parts by weight based on 100 parts by weight of asphalt in order to enhance wet strength and abrasion resistance. It may further include zinc ammonium chloride.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to 100 parts by weight of asphalt based on the phylum powder in order to improve the breathability and oil absorption of the composition. It may further contain 5 parts by weight, and the phyllite is a type of metamorphic rock produced through processes such as hydrolysis and metamorphism and weathering corrosion in the clay sediment layer, and its main components include silica, alumina, and metal oxides. It is a waterproof asphalt containing urethane resin, SIS, and fine powder aggregate of improved aggregate particle size, as it contains pores of various sizes inside and has a porosity almost similar to that of zeolite, but has a large fraction of foam. When included in the concrete composition, it will have the same effect as described above, and the average particle size of the preferred phyllite powder is 3 to 30㎛.

In another specific aspect, the waterproof asphalt concrete composition comprising a urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is a waterproof asphalt concrete composition comprising a urethane resin, SIS and fine powder aggregate of improved aggregate particle size. Bauxite powder is used to prevent lift and improve durability and adhesion strength of the waterproof asphalt concrete composition containing urethane resin, SIS and fine powder aggregate of improved aggregate particle size by penetrating into the voids of the construction surface to be constructed and maintaining the structure densely. It may further include 0.1 to 5 parts by weight based on 100 parts by weight of asphalt, and the average particle size of the preferred bauxite powder is 1 to 10 μm.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 dibutylphthalate based on 100 parts by weight of asphalt in order to prevent cracking and peeling of the composition. It may further contain 3 parts by weight.

As another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is 3-mercaptopropyltrime in order to improve the strength, penetration, and water repellency of the composition. It may further contain 1 to 3 parts by weight of oxysilane based on 100 parts by weight of asphalt.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is based on 100 parts by weight of asphalt in order to develop long-term strength and improve durability of the composition. It may further contain 1 to 3 parts by weight, and the gelite is a mineral material having an effect of 187 times or more of the loess, and has a high quality far-infrared emission effect in addition to the above effect, and a preferred average particle size is 1 to 5 μm.

As another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention prevents condensation of the material constituting the composition and uses citric acid to secure a certain working time. It may further include 1 to 5 parts by weight based on 100 parts by weight of asphalt.

As another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is based on 100 parts by weight of asphalt in order to secure breathability while preventing moisture penetration on the surface of the composition. It may further contain 1 to 5 parts by weight of sodium stearate, and if the content is less than 1 part by weight based on 100 parts by weight of asphalt, the intended moisture penetration prevention function cannot be obtained, and if it exceeds 5 parts by weight, the strength of the composition decreases. Symptoms appear and are not good.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to 5 parts by weight of asphalt in order to improve the water resistance and scratch resistance of the composition. It may further include a boric acid compound in parts by weight, and examples of the boric acid compound include orthoboric acid, metaboric acid, tetraboric acid, methyl borate, ethyl borate, and the like, preferably orthoboric acid.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to 5 parts by weight based on 100 parts by weight of asphalt in order to prevent drying shrinkage of the composition. It may further contain calcium mate, and when calcium aluminate is included in the waterproof asphalt concrete composition including urethane resin, SIS, and fine powder aggregate of improved aggregate particle size, it becomes expandable and prevents drying shrinkage of the composition. If the amount used is less than 0.1 parts by weight based on 100 parts by weight of asphalt, the effect is insignificant, and if it exceeds 5 parts by weight, it is excessive and can reduce workability, which is not good.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 1 to 5 parts by weight based on 100 parts by weight of asphalt in order to improve the compressive strength and flexural strength of the composition. Part of sodium metasilicate may be further included. If the content is less than 1 part by weight, fluidity is lowered and irregular bubbles are formed, and if it exceeds 5 parts by weight, it is difficult to secure a curing time.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is based on magnesium nitride based on 100 parts by weight of asphalt in order to improve the strength, abrasion resistance, and durability of the composition. It may further include 0.1 to 3 parts by weight.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention improves the reactivity of the composition to express strength, and improves fouling resistance and material separation resistance. For this purpose, sodium metaphosphate may be further included in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of asphalt.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention blocks the settling delay phenomenon in winter, improves strength and increases viscosity to improve the flowability of asphalt. In order to improve, it may further include 1 to 5 parts by weight of aluminum sulfate based on 100 parts by weight of asphalt.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is prepared by using strontium aluminate as asphalt 100 in order to increase the composition reactivity and express early strength. It may further include 0.1 to 3 parts by weight based on parts by weight.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS, and fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to illite based on 100 parts by weight of asphalt in order to improve the antibacterial and antifouling properties of the composition. It may further contain 1 part by weight

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is a waterproof asphalt concrete composition comprising a urethane resin, SIS and fine powder aggregate of improved aggregate particle size. In order to improve the water repellency, 0.1 to 5 parts by weight of potassium methylsiliconate may be further included based on 100 parts by weight of asphalt, and if the amount of the potassium methyl siliconate is less than 0.1 parts by weight, the water repellency effect is insignificant, and 5 parts by weight If it exceeds, compatibility will fall.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is corroded and coated off due to deterioration factors such as salt damage or neutralization of the object to which the composition is applied. In order to prevent the occurrence of the like, methyltrimethoxysilane (MTMS) may be further included, and the amount thereof is preferably 1 to 5 parts by weight based on 100 parts by weight of asphalt.

In another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is imidazoline in order to improve the material separation resistance, workability and freeze-thaw durability of the composition. Betaine may be further included in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of asphalt.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is a waterproof asphalt concrete composition comprising a urethane resin, SIS and fine powder aggregate of improved aggregate particle size. In order to improve adhesion performance, n-butyl acrylate may be further included in an amount of 0.1 to 4 parts by weight based on 100 parts by weight of asphalt.If it is less than 1 part by weight based on 100 parts by weight of asphalt, the adhesion is lowered, Exceeding 4 parts by weight is not good because it is not economical.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is a waterproof asphalt concrete composition comprising a urethane resin, SIS and fine powder aggregate of improved aggregate particle size. In order to improve strength, creep resistance, abrasion resistance, fire resistance, etc., mullite may be further included in an amount of 1 to 5 parts by weight based on 100 parts by weight of asphalt, and the mullite is a mineral belonging to the orthorhombic system, which is colorless or pink. It contains a lot of aluminum oxide and silicon dioxide, but if it is less than 1 part by weight based on 100 parts by weight of asphalt, the improvement effect in strength, abrasion resistance and fire resistance, etc. is insignificant, and if it exceeds 5 parts by weight, the workability is deteriorated and it is not good. .

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is a waterproof asphalt concrete composition comprising a urethane resin, SIS and fine powder aggregate of improved aggregate particle size. Magnesium silicide may be further included in an amount of 0.5 to 3 parts by weight based on 100 parts by weight of asphalt in order to control the curing rate and improve waterproof and corrosion resistance.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is a waterproof asphalt concrete composition comprising a urethane resin, SIS and fine powder aggregate of improved aggregate particle size. In order to improve durability, abrasion resistance, and dispersibility, calcium stearate may be further included in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of asphalt.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of improved aggregate particle size according to the present invention is tetramethylene dichloride in order to improve water resistance, chemical resistance and/or internal adhesion of the composition. The isocyanate may be further included in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of asphalt.

In another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to 3 parts by weight based on 100 parts by weight of asphalt in order to improve the waterproofness and chemical resistance of the composition. It may be further included as a weight part of ulsonite (Ursolite).

Here, the ulsonite is a powder having excellent acicular absorption, replacing the organic thickener and adsorbing particles, for example, resin, etc. on the surface of the powder particles, so that the slump of asphalt is high or the particles are caused by a vibration source intersecting during construction. It is added to suppress migration to the surface layer of the asphalt coating layer. To obtain maximum effect, hardness of 4.5 to 5.0, specific gravity of about 2.9, particle size of 30㎛±5, aspect ratio of 15:1 It is preferable to use those that satisfy the conditions.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is prepared by using dibutylhydroxytoluene as asphalt 100 to prevent rancidity and aging and improve stability of the composition. It may further include 1 to 4 parts by weight based on parts by weight.

As another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is used to facilitate mixing between components constituting the composition and to improve the stability of the composition. Foxy polyethylene glycol allyl ether may be further included in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of asphalt, and if the content is less than 0.1 parts by weight based on 100 parts by weight of asphalt, it is not easy to mix the composition, and if it exceeds 5 parts by weight It is not good because the stability is lowered due to excessive amounts.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to 4 parts by weight based on 100 parts by weight of asphalt in order to improve the waterproofness and chemical resistance of the composition. It may further include butyl-2-propenoate in parts by weight.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of the improved aggregate particle size according to the present invention is 0.01 to 100 parts by weight of asphalt in order to improve the bonding strength between the components constituting the composition. 1 part by weight of mono-tert-butyl-hydroquinone may be further included.

As another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and fine powder aggregate of improved aggregate particle size according to the present invention is 1 to 5 parts by weight based on 100 parts by weight of asphalt in order to improve the adhesion during construction using the composition. It may further include a negative rosin ester.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 0.01 based on 100 parts by weight of asphalt in order to prevent photooxidation due to light during construction using the composition. To 1 part by weight of phenyl salchirate may be further included.

In another specific embodiment, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 0.1 to 100 parts by weight of asphalt in order to prevent ionization of the composition and improve storage stability. 3 parts by weight of sodium trifolate may be further included.

As another specific aspect, the waterproof asphalt concrete composition comprising the urethane resin, SIS and the fine powder aggregate of the improved aggregate particle size according to the present invention is 1 to 100 parts by weight of asphalt in order to improve the adhesive strength with the construction surface during construction. It may further comprise 3 parts by weight of trichloroacetic acid.

A method of manufacturing a waterproof asphalt concrete composition comprising a waterproof asphalt concrete composition according to the present invention having such a configuration, specifically a urethane resin, SIS, and fine powder aggregate of an improved aggregate particle size will be described as follows.

The waterproof asphalt concrete composition construction method according to the present invention may be used as long as it is a conventional construction method in the art, but as an aspect, the asphalt concrete composition is paved with a thickness of 5 to 12 cm on the target surface to be constructed. A base layer manufacturing step of preparing a base layer; And

Based on 100 parts by weight of asphalt on top of the base layer, 1 to 15 parts by weight of urethane resin, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of styrene ethylene butylene styrene copolymer, 1 to 25 parts by weight of petroleum resin, Waterproof including 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of sodium benzoate, 0.1 to 2 parts by weight of cellulose fiber, 0.1 to 2 parts by weight of wax, and 0.1 to 2 parts by weight of antioxidant It includes a waterproof layer forming step of forming a waterproof layer by paving the asphalt concrete composition to a thickness of 1 to 3cm.

Here, the asphalt concrete composition of the base layer manufacturing step may be any conventional asphalt used in road pavement in the art.

In another aspect, a method of constructing a waterproof asphalt concrete composition according to the present invention includes a chipping step of removing deteriorated portions (corrosion portions) from the surface of the concrete structure;

A high pressure washing step for removing foreign substances or debris from the surface of the concrete structure;

A rust removal step of removing rust of the exposed reinforcing bars from the concrete structure;

Based on 100 parts by weight of asphalt on the chipped portion, 1 to 15 parts by weight of urethane resin, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of styrene ethylene butylene styrene copolymer, 1 to 25 parts by weight of petroleum resin, Waterproof including 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of sodium benzoate, 0.1 to 2 parts by weight of cellulose fiber, 0.1 to 2 parts by weight of wax, and 0.1 to 2 parts by weight of antioxidant Section repair step of restoring the section by pouring the asphalt concrete composition;

A compaction step of compacting after the end of the section repair step is completed; And

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

As a specific aspect, the construction method using the waterproof asphalt concrete composition according to the present invention may further include applying an eco-friendly surface protection agent after the curing step of curing the waterproof asphalt concrete composition is completed.

Here, the eco-friendly surface protection agent is an epoxy resin component containing an epoxy resin, a reactive diluent, a coagulant, an emulsifier and water; And polyoxypropylenediamine, toluene, titanium oxide, karamite, a pigment, and a curing component including water.

If necessary, the eco-friendly surface protectant according to the present invention is composed of 69 to 81% by weight of an epoxy base resin component and 19 to 31% by weight of a curing component, but the epoxy base resin component is 54 to 82% by weight of an epoxy resin, a reactive diluent. Consisting of 5 to 11% by weight, 2 to 8% by weight of coagulant, 3 to 9% by weight of emulsifier, 8 to 18% by weight of water, the curing component is 24 to 35% by weight of polyoxypropylenediamine, 12 to 21% by weight of toluene %, titanium oxide 8 to 15% by weight, GARAMITE 11 to 21% by weight, pigment 2 to 8% by weight, water may be composed of 11 to 19% by weight.

Here, the karamite may be organically modified with magnesium, aluminum, and silicate.

Hereinafter, the present invention will be described in detail through examples. However, the following examples are for illustrative purposes only 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, 3 g of urethane resin, 12 g of styrene isoprene styrene with an elongation of about 850%, 12 g of styrene ethylene butylene styrene copolymer, 15 g of aliphatic C-5 petroleum resin with a viscosity of 130 cps at 140°C, and average particle size is about 1,200g aggregate of 3mm gravel and gravel with an average particle size of about 5mm in a weight ratio of 5:5, 80g of fine powder aggregate made of limestone with an average particle size of about 0.03mm, sodium benzoate 1g, natural cellulose fiber 1g, polyethylene A waterproof asphalt concrete composition was prepared by mixing 1 g of wax and 1 g of 2.2-methylenebis(4-methyl-6-t-butylphenol).

[Example 2]

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

[Example 3]

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

[Example 4]

It was carried out in the same manner as in Example 1, but was carried out by adding 1 g of 2-bromopyridine.

[Example 5]

It was carried out in the same manner as in Example 1, but was carried out by adding 2 g of Wellan gum.

[Example 6]

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

[Example 7]

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

[Example 8]

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

[Example 9]

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

[Example 10]

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

[Example 11]

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

[Example 12]

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

[Example 13]

It was carried out in the same manner as in Example 1, but further added 2 g of zinc ammonium chloride.

[Example 14]

It was carried out in the same manner as in Example 1, but with an average particle size of 5 μm, 3 g of cheonmaeam powder was further added.

[Example 15]

It was carried out in the same manner as in Example 1, but further added 3 g of bauxite powder having an average particle size of 3 μm.

[Example 16]

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

[Example 17]

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

[Example 18]

It was carried out in the same manner as in Example 1, but further added 2 g of a fine gelite powder having an average particle size of 3 μm.

[Example 19]

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

[Example 20]

It was carried out in the same manner as in Example 1, but was carried out by adding 2 g of sodium stearate.

[Example 21]

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

[Example 22]

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

[Example 23]

It was carried out in the same manner as in Example 1, but was carried out by adding 4 g of sodium metasilicate.

[Example 24]

It was carried out in the same manner as in Example 1, but was carried out by adding 2 g of magnesium nitride.

[Example 25]

It was carried out in the same manner as in Example 1, but was carried out by adding 2 g of sodium metaphosphate.

[Example 26]

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

[Example 27]

It was carried out in the same manner as in Example 1, except that 2 g of strontium aluminate was further added.

[Example 28]

It was carried out in the same manner as in Example 1, but was carried out by adding 0.5 g of illite.

[Example 29]

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

[Example 30]

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

[Example 31]

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

[Example 32]

It was carried out in the same manner as in Example 1, but was carried out by adding 2 g of normal butyl acrylate.

[Example 33]

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

[Example 34]

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

[Example 35]

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

[Example 36]

It was carried out in the same manner as in Example 1, but further added 3 g of tetramethylene diisocyanate.

[Example 37]

It was carried out in the same manner as in Example 1, but was carried out by adding 0.5 g of ulsonite.

[Example 38]

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

[Example 39]

It was carried out in the same manner as in Example 1, but was carried out by adding 3 g of sulfoxy polyethylene glycol allyl ether.

[Example 40]

It was carried out in the same manner as in Example 1, but was carried out by adding 2 g of butyl-2-propenoate.

[Example 41]

It was carried out in the same manner as in Example 1, but 0.5 g of mono-tert-butyl-hydroquinone was further added.

[Example 42]

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

[Example 43]

It was carried out in the same manner as in Example 1, but was carried out by adding 0.5 g of phenyl salcirate.

[Example 44]

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

[Example 45]

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

[Example 46]

It was carried out in the same manner as in Example 1, but all of the additives added according to Examples 3 to 45 were added.

[Experiment]

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

Here, the dynamic stability was measured through the deformation strength test and test by the Kim Test as plastic deformation resistance evaluation, the indirect tensile strength was conducted to evaluate the crack resistance, and the compressive strength was measured using an asphalt compressive strength tester.

Waterproof Gelation/1hr
(at -10℃) Degree of cracking Dynamic stability
(pass/mm) Indirect tensile strength
(ITS) Deformation strength
(Mpa) Compressive strength (MPa) 7 days 28 days Example 1 99% 66 none 1868 0.87 5.57 28.4 79 Example 2 99% 66 none 1867 0.86 5.55 27.7 78 Example 3 99% 67 none 1854 0.88 5.87 29.2 79 Example 4 99% 68 none 1878 0.86 5.84 33.7 84 Example 5 99% 68 none 1923 0.85 5.88 26.2 77 Example 6 99% 68 none 1923 0.88 5.82 23.5 76 Example 7 98% 67 none 1953 0.86 5.85 28.3 79 Example 8 99% 66 none 1894 0.91 5.93 31.5 82 Example 9 99% 65 none 1845 0.89 5.76 29.6 80 Example 10 99% 67 none 1912 0.91 5.81 30.4 81 Example 11 99% 65 none 1943 0.86 5.67 31.7 82 Example 12 99% 68 none 1944 0.92 5.73 32.5 84 Example 13 99% 67 none 1943 0.86 5.67 31.2 82 Example 14 99% 66 none 1862 0.85 5.75 30.8 80 Example 15 99% 66 none 1965 0.83 5.72 26.4 79 Example 16 99% 65 none 1975 0.81 5.54 26.7 78 Example 17 99% 67 none 1943 0.87 5.66 31.6 81 Example 18 99% 65 none 1895 0.89 5.74 29.3 79 Example 19 98% 67 none 1854 0.86 5.85 33.6 84 Example 20 99% 67 none 1965 0.84 5.98 31.8 84 Example 21 99% 66 none 1865 0.83 6.03 32.4 82 Example 22 98% 65 none 1975 0.86 5.79 31.3 80 Example 23 99% 65 none 1949 0.87 5.94 28.2 78 Example 24 99% 67 none 1967 0.91 5.60 29.1 82 Example 25 99% 64 none 1945 0.90 5.75 28.5 78 Example 26 99% 66 none 1889 0.93 5.45 31.7 80 Example 27 98% 65 none 1867 0.88 5.74 33.5 87 Example 28 99% 67 none 1868 0.85 5.67 28.4 79 Example 29 98% 67 none 1877 0.88 5.54 34.8 87 Example 30 98% 67 none 1845 0.91 5.63 31.5 82 Example 31 99% 65 none 1921 0.88 5.71 31.0 82 Example 32 99% 66 none 1945 0.85 6.12 31.2 80 Example 33 99% 65 none 1898 0.84 6.17 32.4 84 Example 34 99% 66 none 1975 0.88 5.87 33.8 87 Example 35 98% 66 none 1957 0.85 6.01 31.5 84 Example 36 98% 65 none 1844 0.86 6.12 32.3 85 Example 37 99% 66 none 1953 0.87 5.94 27.6 79 Example 38 99% 66 none 1934 0.84 5.75 31.5 81 Example 39 99% 67 none 1928 0.92 5.78 29.3 84 Example 40 99% 68 none 1967 0.91 5.67 32.3 87 Example 41 98% 67 none 1885 0.94 5.61 31.8 82 Example 42 99% 68 none 1945 0.85 5.83 32.9 85 Example 43 98% 68 none 1921 0.88 5.55 32.5 86 Example 44 99% 68 none 1898 0.85 5.77 28.3 79 Example 45 99% 68 none 1925 0.89 5.94 32.2 85 Example 46 99% 68 none 1928 0.91 5.89 28.4 79

As shown in Table 1, the waterproofness, dynamic stability, indirect tensile strength, and deformation strength of the examples using the waterproof asphalt composition are good, gelation proceeds at low temperatures, so that not only curing is rapidly performed, there is no crack, and the compressive strength is 28 It was confirmed that all the asphalt compositions of Examples always had high strength as 75 megapascals or more at the time point elapsed.

As described above, those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, all the embodiments described above are illustrative and should be understood as non-limiting. The scope of the present invention should be construed as including all altered or modified forms derived from the meaning and scope of the claims to be described later rather than the above detailed description, and equivalent concepts thereof.

Claims (5)

Based on 100 parts by weight of asphalt,
1 to 15 parts by weight of urethane resin;
1 to 25 parts by weight of styrene isoprene styrene;
1 to 25 parts by weight of a styrene ethylene butylene styrene copolymer;
140° C. 1 to 25 parts by weight of an aliphatic C-5 petroleum resin having a viscosity of 130 cps;
500 to 2,000 parts by weight of aggregate;
30 to 150 parts by weight of fine powder aggregate;
0.1 to 2 parts by weight of sodium benzoate;
0.1 to 2 parts by weight of cellulose fibers;
0.1 to 2 parts by weight of wax; And
In a waterproof asphalt concrete composition containing 0.1 to 2 parts by weight of an antioxidant,
Further comprising 0.1 to 4 parts by weight of polyvinylidene fluoride resin 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,
Neopentyl glycol is further included in an amount of 0.1 to 4 parts by weight based on 100 parts by weight of asphalt,
Gibbsite further comprises 0.1 to 5 parts by weight based on 100 parts by weight of asphalt,
Further comprising 0.1 to 4 parts by weight of zinc ammonium chloride based on 100 parts by weight of asphalt,
3-mercaptopropyltrimethoxysilane further comprises 1 to 3 parts by weight based on 100 parts by weight of asphalt,
Citric acid is further included in 1 to 5 parts by weight based on 100 parts by weight of asphalt,
Magnesium nitride further comprises 0.1 to 3 parts by weight based on 100 parts by weight of asphalt,
Sodium metaphosphate is further included in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of asphalt,
Further comprising 0.1 to 1 parts by weight of illite based on 100 parts by weight of asphalt,
Further comprising 1 to 5 parts by weight of methyltrimethoxysilane based on 100 parts by weight of asphalt,
Magnesium silicate further comprises 0.5 to 3 parts by weight based on 100 parts by weight of asphalt,
Mono-tert-butyl-hydroquinone further comprises 0.01 to 1 part by weight based on 100 parts by weight of asphalt,
Further containing 0.1 to 3 parts by weight of sodium trifolate based on 100 parts by weight of asphalt,
Waterproof asphalt concrete composition further comprising 1 to 3 parts by weight of trichloroacetic acid based on 100 parts by weight of asphalt.
delete delete A base layer manufacturing step of manufacturing a base layer by paving the asphalt concrete composition to a thickness of 5 to 12 cm on the target surface to be constructed; And
Based on 100 parts by weight of asphalt on top of the base layer, 1 to 15 parts by weight of urethane resin, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of styrene ethylene butylene styrene copolymer, aliphatic C having a viscosity of 130 cps at 140° C. -5 1 to 25 parts by weight of petroleum resin, 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of sodium benzoate, 0.1 to 2 parts by weight of cellulose fiber, 0.1 to 2 parts by weight of wax, and In the waterproof asphalt concrete composition containing 0.1 to 2 parts by weight of an antioxidant, a polyvinylidene fluoride resin is further included in an amount of 0.1 to 4 parts by weight based on 100 parts by weight of asphalt, and the Welan gum is 0.1 to 3 parts by weight based on 100 parts by weight of asphalt. It further includes, neopentyl glycol is further included in an amount of 0.1 to 4 parts by weight based on 100 parts by weight of asphalt, and a gibsite is further included in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of asphalt, and the zinc ammonium chloride is based on 100 parts by weight of asphalt. In addition to 0.1 to 4 parts by weight, 3-mercaptopropyltrimethoxysilane is further included in 1 to 3 parts by weight based on 100 parts by weight of asphalt, and citric acid is further included in 1 to 5 parts by weight based on 100 parts by weight of asphalt And, magnesium nitride is further included in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of asphalt, sodium metaphosphate is further included in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of asphalt, and illite is 0.1 to 3 parts by weight based on 100 parts by weight of asphalt. It further comprises 1 part by weight, further comprising 1 to 5 parts by weight of methyltrimethoxysilane based on 100 parts by weight of asphalt, and further comprising 0.5 to 3 parts by weight of magnesium silicate based on 100 parts by weight of asphalt, mono-tert -Butyl-hydroquinone is further included in 0.01 to 1 parts by weight based on 100 parts by weight of asphalt, and sodium trifolate is further included in 0.1 to 3 parts by weight based on 100 parts by weight of asphalt, and trichloroacetic acid is based on 100 parts by weight of asphalt. 1 to 3 parts by weight more po A waterproof asphalt concrete composition construction method comprising the step of forming a waterproof layer by packing the waterproof asphalt concrete composition to a thickness of 1 to 3cm. A chipping step of removing deterioration (corrosion) on the surface of the concrete structure;
A high pressure washing step for removing foreign substances or debris from the surface of the concrete structure;
A rust removal step of removing rust of the exposed reinforcing bars from the concrete structure;
Based on 100 parts by weight of asphalt in the chipped area, 1 to 15 parts by weight of urethane resin, 1 to 25 parts by weight of styrene isoprene styrene, 1 to 25 parts by weight of styrene ethylene butylene styrene copolymer, aliphatic C having a viscosity of 130 cps at 140° C. -5 1 to 25 parts by weight of petroleum resin, 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, 0.1 to 2 parts by weight of sodium benzoate, 0.1 to 2 parts by weight of cellulose fiber, 0.1 to 2 parts by weight of wax, and In the waterproof asphalt concrete composition containing 0.1 to 2 parts by weight of an antioxidant, a polyvinylidene fluoride resin is further included in an amount of 0.1 to 4 parts by weight based on 100 parts by weight of asphalt, and the Welan gum is 0.1 to 3 parts by weight based on 100 parts by weight of asphalt. It further includes, neopentyl glycol is further included in an amount of 0.1 to 4 parts by weight based on 100 parts by weight of asphalt, and a gibsite is further included in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of asphalt, and the zinc ammonium chloride is based on 100 parts by weight of asphalt. In addition to 0.1 to 4 parts by weight, 3-mercaptopropyltrimethoxysilane is further included in 1 to 3 parts by weight based on 100 parts by weight of asphalt, and citric acid is further included in 1 to 5 parts by weight based on 100 parts by weight of asphalt And, magnesium nitride is further included in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of asphalt, sodium metaphosphate is further included in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of asphalt, and illite is 0.1 to 3 parts by weight based on 100 parts by weight of asphalt. It further comprises 1 part by weight, further comprising 1 to 5 parts by weight of methyltrimethoxysilane based on 100 parts by weight of asphalt, and further comprising 0.5 to 3 parts by weight of magnesium silicate based on 100 parts by weight of asphalt, mono-tert -Butyl-hydroquinone is further included in 0.01 to 1 parts by weight based on 100 parts by weight of asphalt, and sodium trifolate is further included in 0.1 to 3 parts by weight based on 100 parts by weight of asphalt, and trichloroacetic acid is based on 100 parts by weight of asphalt. 1 to 3 parts by weight more po A section repair step of restoring the section by pouring the containing waterproof asphalt concrete composition;
A compaction step of compacting after the end of the section repair step is completed; And
A waterproof asphalt concrete composition construction method comprising a curing step of curing after the compaction step is completed.