KR101864146B1 - Constructing method of ascon using ascon mixture - Google Patents

Constructing method of ascon using ascon mixture Download PDF

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KR101864146B1
KR101864146B1 KR1020170102528A KR20170102528A KR101864146B1 KR 101864146 B1 KR101864146 B1 KR 101864146B1 KR 1020170102528 A KR1020170102528 A KR 1020170102528A KR 20170102528 A KR20170102528 A KR 20170102528A KR 101864146 B1 KR101864146 B1 KR 101864146B1
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weight
layer
asphalt
aggregate
parts
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KR1020170102528A
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Korean (ko)
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엄태성
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엄태성
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/26—Carbonates
    • C04B14/28—Carbonates of calcium
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/46—Rock wool ; Ceramic or silicate fibres
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2623—Polyvinylalcohols; Polyvinylacetates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/26—Bituminous materials, e.g. tar, pitch
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
    • E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/40—Surface-active agents, dispersants
    • C04B2103/408—Dispersants
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Structures (AREA)

Abstract

The present invention relates to an asphalt composition having improved low noise function and a method of applying the asphalt using the composition. In order to minimize the thickness of the aspheric layer and improve the low noise function, A lower stratum 10 composed of a composition of 15 to 21 wt% of an aggregate having a particle size of 10 to 15 mm, 2 to 5 wt% of a limestone powder, and 1 to 3 wt% of a mineral fiber filler; A slurry composition comprising 73 to 81% by weight of an aggregate having a particle diameter of 12 to 17 mm, 10 to 15% by weight of an aggregate having a particle diameter of 8 to 10 mm, 2 to 5% 0.5 to 1 wt% of an asphalt modifier, and 1 to 3 wt% of a moderate temperature additive; A second halftone layer 30 of a composition of 78 to 83 wt% of a high elastic resin, 11 to 15 wt% of a plastic copolymer, 2 to 5 wt% of a mineral fiber filler, 2 to 5 wt% of a peeling inhibitor and 1 to 3 wt% ); The aggregate of 3 to 6 mm in particle size, the aggregate of 1 to 1.5 mm in particle size, 7 to 14 weight% of asphalt, 1 to 3 weight% of asphalt modifier, 3 to 6 weight% of anti- (2), wherein the plastic layer is formed of a resin selected from the group consisting of polyethylene, polybutene, At least one selected from the group consisting of polyethyleneimine, polyphenylene sulfide and polybenzimidazole is copolymerized with at least one selected from the group consisting of the lower layer portion 10, the first intermediate layer portion 20, The layer 30 and the top layer 40 are laminated at a thickness ratio of 5: 1.5: 2: 1.5, and further include 1 to 3 parts by weight of rubber chips with respect to 100 parts by weight of the top layer 40, And further comprises 0.5 to 1.5% by weight of potassium silicate with respect to 100 parts by weight of the layer portion 10 .

Description

TECHNICAL FIELD [0001] The present invention relates to an ascoon composition having improved silent function and an ascon construction method using the composition.

More particularly, the present invention relates to an aspheric composition having improved low-noise function and a composition for minimizing the thickness of the aspheric layer, The present invention relates to a method of constructing an ascon.

With the continuous development of the domestic economy and the expansion of the infrastructure and highways, traffic noise has increased due to the increase in the number of vehicles and the increase in size and speed of the vehicles. As a result, the area affected by traffic noise is expanding due to the expansion of roads, and complaints about pleasant environment are increasing with the increase of national income.

There are road noise, noise of railway, noise of airplane, noise of construction, etc. Among the types of urban environmental noise, road traffic noise generated from road developed for convenience of movement and driving safety is related to traffic volume and traffic flow The type of vehicle and the method of driving the vehicle, and the noise caused by the vehicle engine noise, the intake / exhaust system, the noise generated by the flow of the vehicle surface and air, the noise caused by the friction between the tire and the road surface, Which is an obstacle to the comfort of the driver and the consumer.

In addition, it can be said that it is affected by the noise generation factors such as the straightness of the road, the condition of the road surface and the condition of the land topography, the reflection of the sound by the building or the shield and the shielding effect. In order to solve this problem, noise suppression methods such as securing a street distance or a soundproof wall are used. However, since not only an economic loss but also a problem of harming aesthetics of a city occurs and paper use is inefficient, A direct method of blocking the generation source and reducing the amount of noise generated can be said to be effective. As a direct noise reduction method used to enhance the direct noise reduction effect, selection of the road surface material and the packaging technique is an important item.

As shown in FIG. 1, the mechanism of the noise generated by the friction between the tire and the surface of the road during driving the road includes vibration, stick-slip, stick-snap, air Air-pumping, and aerodynamic flow. Among them, vibration noise is one of the biggest causes of noise between tire and road surface, which accounts for about 65% of total noise.

Vibration is caused by direct noise caused by a block having the same shape due to the lateral grooves of the tire when the tire rotates, indirect noise caused by vibrations of the tire body caused by the road surface and vibrations of the tire body And occurs at the front edge of the tire. The noise generated by the vibration occurs in the range of 550 ~ 1,100 Hz when driving at 80 Km / h, assuming that the length of the block is 0.02 ~ 0.04 m for general passenger car tires.

The stick slip is a noise generated due to the repeated change of the stick and slip between the tire and the road surface. When a driving force and a lateral force due to a turning motion are added to a tire when the vehicle is traveling, the tread block of the tire rubs against the road surface and slip occurs. The slip generated at this time depends on the magnitude of the lateral force. Generally, when complete braking is generated during driving, the tire slips on the road surface, thereby generating friction noise.

The stick slip phenomenon can be explained in three stages. The first stage is a stick section that occurs at the beginning of slip occurrence, in which the tread block is adhered to the road surface and moves together, and the restoring force due to the deformation of the tread block is the maximum static frictional force And so on. In the second step, the restoring force of the tread block becomes larger than the maximum traction frictional force and slip occurs. At this time, the frictional force which deforms the tread block until now is changed into the dynamic frictional force, The second equilibrium position. Step 3 is a step in which a stick phenomenon occurs again, and the deformation is deformed until the restoring force becomes equal to the maximum stopping frictional force. The stick slip noise is generated due to the repetitive phenomenon of the second and third steps.

The stick snap is a phenomenon that occurs when a tire tread rubber is adhered to a very slippery and clean road surface, and a little force is required when the rubber sticks off the ground. As a result of this force, the rubber is released and noise is generated.

Air pumping occurs when a coke bottle is blown or a balloon is blown, and sudden air is released or introduced to the outside. As the tire's tread repeatedly compresses and expands on the pavement surface, . Such noise causes the impact of hitting the road pavement at regular intervals with a rubber hammer, which causes a hitting noise. The noise generated at this time generates noise in various frequency bands depending on the traveling speed of the vehicle, the type of the tire, the shape of the road pavement surface, and the like.

Conventional low noise packing for reducing the noise between the tire and the road surface when driving on the road is an open grade asphalt which is formed by forming a certain gap in the package to drain water. Such a low noise package improves the permeability of air in a dry state, and plays a role of suppressing the sound of air pumping on the road and the noise of pattern groove resonance, thereby reducing the noise generated between the tire and the road surface. It has been confirmed that such conventional low noise packaging reduces the noise between the tire and the road surface by about 3 to 6 dB (A) as compared with general dense grade asbestos packaging.

However, such a conventional low-noise package has a structure having small pores in the surface layer, and the pores in the surface layer are clogged with time, and the arrangement of the pores is irregular, so that the noise reduction effect can not be maintained constantly . Therefore, in order to prevent the reduction of the noise reduction effect due to the pore clogging, it is possible to consider a method of cleaning the road surface by using a high-pressure sprinkler, but in this case, the fine particles penetrating into the fine pores are not easily removed, , The restoration of the noise reduction effect is hardly achieved.

Japanese Patent Registration No. 10-1191089 filed on Oct. 15, 2012 (hereinafter referred to as "Registered Patent Application No. 10-1191089") discloses a drainable or permeable low-noise package using a polymeric polymer. Instead of the asphalt or cement composition used in conventional drainage or permeable packaging, Permeable low-noise package which can minimize the increase in the strength of the package and the emission of environmental pollutants. However, it still has a structure with small pores in the surface layer, and as the time elapses after the pavement, the pores on the surface are clogged and the noise reduction power is gradually decreased.

Therefore, the conventional low-noise package is effective in reducing the noise generated by the air pumping among the noise generation mechanism between the tire and the road surface, and the noise reduction effect caused by the vibration, which is the main reason for the noise generated between the tire and the road surface, There is a problem that the effect of reducing the noise generated between the road surface and the road surface is insignificant and the noise reduction effect is drastically lowered due to the decrease of the pore on the surface of the asphalt as time elapses after the packaging of the asphalt concrete.

Patent No. 10-1191089

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in an effort to solve the above problems, and it is an object of the present invention to provide an aspheric composition with improved low noise function that minimizes the thickness of the aspheric layer, It was completed as an assignment.

In order to accomplish the above object, the present invention provides a method for producing a mineral fiber, comprising the steps of: 75 to 80% by weight of an aggregate having a particle diameter of 20 to 25 mm, 15 to 21% by weight of an aggregate having a particle diameter of 10 to 15 mm, A bottom layer 10 of 3% by weight composition; A slurry composition comprising 73 to 81% by weight of an aggregate having a particle diameter of 12 to 17 mm, 10 to 15% by weight of an aggregate having a particle diameter of 8 to 10 mm, 2 to 5% 0.5 to 1 wt% of an asphalt modifier, and 1 to 3 wt% of a moderate temperature additive; A second halftone layer 30 of a composition of 78 to 83 wt% of a high elastic resin, 11 to 15 wt% of a plastic copolymer, 2 to 5 wt% of a mineral fiber filler, 2 to 5 wt% of a peeling inhibitor and 1 to 3 wt% ); The aggregate of 3 to 6 mm in particle size, the aggregate of 1 to 1.5 mm in particle size, 7 to 14 weight% of asphalt, 1 to 3 weight% of asphalt modifier, 3 to 6 weight% of anti- (2), wherein the plastic layer is formed of a resin selected from the group consisting of polyethylene, polybutene, At least one selected from the group consisting of polyethyleneimine, polyphenylene sulfide and polybenzimidazole is copolymerized with at least one selected from the group consisting of the lower layer portion 10, the first intermediate layer portion 20, The layer 30 and the top layer 40 are laminated at a thickness ratio of 5: 1.5: 2: 1.5, and further include 1 to 3 parts by weight of rubber chips with respect to 100 parts by weight of the top layer 40, Characterized in that it further comprises 0.5 to 1.5% by weight of potassium silicate with respect to 100 parts by weight of the layer portion (10) Provided is an ascon composition to which a low noise function is added.

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The anti-peeling agent included in the second intermediate layer 30 may be selected from the group consisting of a thiazine series, a furan series, a polyphenyl quinoxaline (PPQ) series, a polybenzoxazole (PBO) series, a polybenzthiazole And phosphorous phosphoric acid.

The dispersant contained in the second interstice layer 30 may include 20 to 23 parts by weight of sorbitol, 8 to 10 parts by weight of isostearate and 1.5 to 3 parts by weight of polologlucinol in 100 parts by weight of hydrogenated oil By weight of the composition.

The lower layer layer 10 and the first intermediate layer 20 may further include 0.2 to 0.4 wt% of a hollow silicate powder.

The asphalt contained in the upper layer portion 40 is composed of a high-viscosity high viscosity modified asphalt. The high-rention high viscosity modified asphalt is prepared by mixing any one of styrene butadiene rubber, rubber powder or styrene butadiene styrene modifier with asphalt A viscosity at 80 ° C of 700,000 to 750,000 poise, a flexural strength at 520 to 570 MPa of the binder, and a softening point of 92 to 95 ° C.

The present invention also provides a composition comprising 75 to 80% by weight of an aggregate having a particle diameter of 20 to 25 mm, an aggregate of 15 to 21% by weight of a particle having a diameter of 10 to 15 mm, a limestone powder of 2 to 5% by weight, and a mineral fiber filler of 1 to 3% (S1) forming a lower layered layer (10); The upper layer of the lower stratum 10 has 73 to 81% by weight aggregate of 12 to 17 mm in particle diameter, 10 to 15% by weight of aggregate of 8 to 10 mm in diameter, 2 to 5% by weight of limestone powder, (S2) of a first intermediate layer (20) composed of a composition consisting of 1 to 3 wt%, 3 to 5 wt% of asphalt, 0.5 to 1 wt% of an asphalt modifier, and 1 to 3 wt% of a moderate temperature additive; The first interstice layer 20 has 78 to 83 wt% of a high elasticity resin, 11 to 15 wt% of a plastic copolymer, 2 to 5 wt% of a mineral fiber filler, 2 to 5 wt% of a peeling inhibitor, Forming a second stop layer 30 of a composition in weight percent (S3); The aggregate of 3 to 6 mm in particle size, the aggregate of 1 to 1.5 mm in particle size, 7 to 14 weight% of asphalt, 1 to 3 weight% of asphalt modifier, 3 to 6 weight% of anti- (S4) composed of a composition of 2 to 5% by weight of a resin and 1 to 3% by weight of a mid-temperature additive, wherein the anti-peeling agent Is formed by a combination of any one or more of the group consisting of a thiazine series, a furan series, a polyphenyl quinoxaline (PPQ) series, a polybenzoxazole (PBO) series, a polybenzthiazole series (PBT) series, In the second stop layer 30, the plastic copolymer is formed of a copolymer in which at least one selected from polyethylene and polybutene and at least one selected from polyethyleneimine, polyphenylene sulfide, and polybenzimidazole are copolymerized And the dispersant contained in the second stop layer 30 is hydrogen 20 to 23 parts by weight of isobutyl, 8 to 10 parts by weight of isostearate and 1.5 to 3 parts by weight of polologlucinol are contained in 100 parts by weight of petroleum jelly, and the lower layer portion 10, the first intermediate layer portion 20, The second intermediate layer 30 and the upper layer 40 are laminated at a thickness ratio of 5: 1.5: 2: 1.5, and 1 to 3 parts by weight of a rubber chip is added to 100 parts by weight of the top layer 40 And further comprising 0.5 to 1.5% by weight of potassium silicate based on 100 parts by weight of the lower stratum part (10).

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The lower layer layer 10 and the first intermediate layer 20 may further include 0.2 to 0.4 wt% of a hollow silicate powder.

The protrusions 12, 22 and 32 are formed in a predetermined pattern on the lower layer layer 10, the first intermediate layer 20 and the second intermediate layer 30, The second interrupted layer 30, and the upper layer 40, which are stacked corresponding to each of the first interrupted layer 20, the second interrupted layer 30, and the upper layer 40.

The protrusions 12, 22 and 32 are each provided with support bars 15, 25 and 35 made of a synthetic resin material or a urethane material having elasticity in order to maximize the mutual fixed binding force.

The upper end surfaces of the support bars 15, 25 and 35 are protruded from the upper end surfaces of the protrusions 12, 22 and 32.

The asphalt contained in the upper layer portion 40 is composed of a high-viscosity high viscosity modified asphalt. The high-rention high viscosity modified asphalt is prepared by mixing any one of styrene butadiene rubber, rubber powder or styrene butadiene styrene modifier with asphalt A viscosity at 80 ° C of 700,000 to 750,000 poise, a flexural strength at 520 to 570 MPa of the binder, and a softening point of 92 to 95 ° C.

According to the present invention, two kinds of aggregates having different particle diameters are mixed so that fine foreign substances such as dust are prevented from penetrating into the pores from the outside, the noise reduction performance can be stably maintained while minimizing the thickness, If the rubber layer is further included in the upper layer portion as the surface layer, the function of absorbing and buffering shocks when passing through the vehicle is achieved, thereby maximizing the noise reduction effect.

In addition, by containing a high-elasticity resin that has excellent load-dispersing ability to distribute the load continuously transmitted from the outside by filling the gap between the aggregate and the aggregate, it increases the lifetime of the ascon and increases the vibration noise So that the noise generation can be continuously reduced.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view of a construction layer of an ascoon composition with improved low-noise function according to the present invention and an as-
FIG. 2 is a diagram illustrating an example of a procedure of an ascon construction method using the composition of the present invention,
3 is an illustration of a protrusion formed on the upper part of the lower stratum part, the first stop layer part and the second stop layer part according to the present invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to an aspheric composition with improved low-noise function, which improves the low-noise function while minimizing the thickness of the aspheric layer, and a method of constructing the asphalt using the composition. As shown in FIGS. 1 and 3, A first stop layer 20, a second stop layer 30, and a top layer 40.

The lower stratum 10 for realizing the low noise function improved asphalt composition of the present invention comprises 75 to 80% by weight of an aggregate having a particle diameter of 20 to 25 mm, 15 to 21% by weight of an aggregate having a particle diameter of 10 to 15 mm, 5 wt%, and 1 to 3 wt% of a mineral fiber filler.

In the lower stratum 10, an aggregate having a relatively large grain size of 20 to 25 mm and an aggregate having a relatively small grain size of 10 to 15 mm are mixed with aggregates having a relatively small grain size, In order to maintain the strength while filling, a limestone powder and a mineral fiber filler are further included to maintain the micropores and strength between the aggregates.

The limestone powder is a type of aqueous rock containing calcium carbonate as a main component and is mainly used for various purposes such as a raw material for neutralizing agent, coal, cement, glass, carbide, iron making and chemical industry.

Also, the mineral fiber filler that is included with the limestone powder is a fiber produced from a glassy melt of melts containing rock, slag, glass and other minerals, and is composed of SiO 2 , Al 2 O 3 , CaO, MgO, FeO, K 2 O, Na 2 O, TiO 2 , and FeO 2 , and more specifically, it is preferably formed of a non-alkaline aluminoborosilicate, a soda silicate, Glass fiber or alumina fiber formed of a combination of at least one of soda borosilicate, lead silicate, cadmium borate and quarz may be used.

The first interstratum layer 20 formed on the upper surface of the lower stratum 10 includes 73 to 81% by weight of aggregates having a particle size of 12 to 17 mm, 10 to 15% by weight of aggregates having a particle size of 8 to 10 mm, 5 to 5 wt% mineral filler, 1 to 3 wt% mineral filler, 3 to 5 wt% asphalt, 0.5 to 1 wt% asphalt modifier, and 1 to 3 wt% moderate temperature additive.

Aggregates having relatively small particle diameters are filled in aggregate having relatively large particle diameters in the first interstice layer portion 20, and furthermore, limestone powder, mineral fiber filler, asphalt, asphalt modifier and moderate temperature additive are further included.

The limestone powder and the mineral fiber filler are the same as described above, but they are omitted. In particular, the mineral fiber filler is contained in an amount of 1 to 3% by weight. When the content is less than 1% by weight, the lifetime of the ascon can be shortened, When the content is more than 3% by weight, the viscosity becomes high and the dispersibility becomes poor, and the permeability to the aggregate becomes poor and the bearing capacity becomes low.

The mid-temperature additive is included to maintain the quality of the asphalt, and the amount of generated petroleum fuel and greenhouse gases is reduced by about 30% as compared with the heated asphalt method, thereby saving energy.

The upper surface of the first intermediate layer 20 is coated with 78 to 83 wt% of high elasticity resin, 11 to 15 wt% of a plastic copolymer, 2 to 5 wt% of a mineral fiber filler, 2 to 5 wt% of a peeling inhibitor, A second stop layer 30 of the composition in weight percent is formed.

The high-elasticity resin is excellent in the load-dispersing ability of distributing the load continuously transmitted from the outside by filling the gap between the aggregate and the aggregate when mixed with the ascon, thereby increasing the lifetime of the ascon and absorbing the vibration noise generated in the road, Can be continuously reduced.

In addition, because the high elasticity resin fills the gaps between the aggregates and reinforces the elastic force, the shrinkage occurs when the temperature of the ascon is lowered to increase the possibility of cracking, and the effect of preventing the fluid deformation .

In consideration of the function of such a high-elasticity resin, the second intermediate layer 30 contains 78 to 83% by weight of the high-elasticity resin, and the high-elasticity resin is a conventional one exhibiting a high elasticity function.

The plastic copolymer contained in the second intermediate layer 30 may be at least one selected from the group consisting of polyethylene and polybutene, and at least one copolymer selected from polyethyleneimine, polyphenylene sulfide, and polybenzimidazole As shown in Fig.

In this case, the plastic copolymer is contained in the second interstice layer 30 in an amount of 11 to 15% by weight. If the plastic copolymer is less than 11% by weight, the effect of improving the strength of the ascon may be insignificant and the durability may be deteriorated. If the load is constantly applied by the vehicle wheels due to the rigid hardening and the elasticity is lowered, cracks may be generated in the ascon, and the vacuum noise reduction effect of the tire may be deteriorated.

If the amount of the anti-peeling agent is less than 2% by weight, the mixing strength of the high-elasticity resin with the plastic copolymer may be deteriorated and peeling of the ascon may occur, There is a fear that the adhesive force is weakened and the durability is lowered. When the amount is more than 5% by weight, the fluidity is lowered due to an increase in viscosity, so that workability is lowered and cracking may occur due to lowering of physical properties of the ascon at low temperature.

The anti-peeling agent may be at least one selected from the group consisting of thiazine, furan, polyphenyl quinoxaline (PPQ), polybenzoxazole (PBO), polybenzothiazole (PBT) It is preferable that they are formed in combination.

The dispersant contained in the second interstice layer 30 may include 20 to 23 parts by weight of sorbitol, 8 to 10 parts by weight of isostearate and 1.5 to 3 parts by weight of polologlucinol in 100 parts by weight of hydrogenated oil Based on the total weight of the composition.

On the upper surface of the second interstice layer 30 having the above-described structure, 50 to 56% by weight of aggregates having a particle size of 3 to 6 mm, 7 to 14% by weight of aggregates having a particle size of 1 to 1.5 mm, An upper layer portion 40 made of a composition of 1 to 3 wt% of an asphalt modifier, 3 to 6 wt% of an anti-peeling agent, 2 to 5 wt% of a high-elasticity resin, and 1 to 3 wt% of a moderate temperature additive is formed.

In the present invention, the bottom layer 10, the first intermediate layer 20, the second intermediate layer 30, and the top layer 40 are laminated from the bottom side as described above. At this time, It is preferable to form a laminate at a thickness ratio of 5: 1.5: 2: 1.5 in order to minimize the thickness of the thickness layer and improve the low noise function.

In addition, to maintain the strength including the low noise function, the compartments were formed in four layers.

Here, the lower layer portion 10 and the second layer layer portion 30 are formed to have a thickness sufficient to alternately maintain the strength of the entire ascon, and the lower layer portion 10 and the second layer portion 30, The first interstice layer 20 and the uppermost layer 40 between the first layer and the second layer have a function of minimizing the thickness of the entire layer of the ascon composition and improving the low noise.

To 100 parts by weight of the upper layer portion 40, 1 to 3 parts by weight of the rubber chips may be further included. In addition, 100 parts by weight of the lower layer portion 10 may be mixed with 0.5 to 10 parts by weight of potassium silicate. 1.5% by weight, based on the total weight of the composition.

Since the rubber chip contains a butadiene component, it improves the elasticity and fluidity of an ascon composition prepared by mixing with asphalt, improves mechanical properties by containing carbon black, and contains an oxidation stabilizer component, Changes in color or aging can be suppressed when exposed for a long period of time.

The rubber chip is mainly used by pulverizing a waste tire, and it is preferable to use a rubber chip having a particle size of 0.05 to 0.1 mm. When the particle size is less than 0.05 mm, the mixture does not remain in the shape of a rubber chip when mixed with asphalt and melts in the ascon composition, so that the noise reduction effect can not be sufficiently absorbed between the tire and the road surface. And the miscibility is deteriorated due to the difference in solubility.

The potassium silicate is included for enhancing the adsorption force of the lower stratum 10, and it is possible to maintain a more stable ground state by improving the binding force between each composition of the lower stratum 10 not exposed to the outside.

The hollow silicate powder may be composed of a hollow silicate powder in which the hollow silicate powder is hollow. The hollow silicate powder may include a hollow silicate powder in an amount of 0.2 to 0.4 wt% Not only the thermal insulation of the lower layer 10 and the first layer 20 but also the noise reduction effect due to buffering.

Meanwhile, the asphalt contained in the upper layer portion 40 is composed of a high-viscosity high-viscosity modified asphalt, wherein the high-viscosity high viscosity modified asphalt is prepared by mixing any one of styrene butadiene rubber, rubber powder or styrene butadiene styrene modifier with asphalt , A viscosity at 80 ° C of 700,000 to 750,000 poise, a flexural strength at 520 to 570 MPa of binder, and a softening point of 92 to 95 ° C.

A description will now be given of the method of constructing the ascon in which the low noise function improved asphalt composition of the present invention as described above is used.

As shown in Fig. 2, the method of constructing the ascon is as follows: 75 to 80 wt% of aggregate having a particle diameter of 20 to 25 mm, 15 to 21 wt% of aggregate having a particle size of 10 to 15 mm, 2 to 5 wt% of limestone powder, (1) forming a lower stratum 10 composed of a mixture having a grain size of 12 to 17 mm and an aggregate having a grain size of 8 to 10 mm and an aggregate having a grain size of 8 to 10 mm on the upper surface of the lower stratum 10, By weight of a mixture of 10 to 15% by weight of limestone powder, 2 to 5% by weight of limestone powder, 1 to 3% by weight of mineral fiber filler, 3 to 5% by weight of asphalt, 0.5 to 1% by weight of asphalt modifier and 1 to 3% 1 to 5% by weight of a high-elasticity resin, 11 to 15% by weight of a plastic copolymer, 2 to 5% by weight of a mineral fiber filler, (S3) of a second intermediate layer 30 composed of a mixture of 2 to 5 wt.% Of an anti-peeling agent, 1 to 3 wt.% Of a dispersant, and 50 to 56 of a aggregate of 7 to 14% by weight of an aggregate having a particle size of 1 to 1.5 mm, 21 to 24% by weight of an asphalt, 1 to 3% by weight of an asphalt modifier, 3 to 6% by weight of a peeling inhibitor, 2 to 5% The first intermediate layer 20, the second intermediate layer 30, the second intermediate layer 30, and the third intermediate layer 30, and forming a top layer 40 of a mixture of 3 wt% The upper layer portion 40 is formed to be laminated at a thickness ratio of 5: 1.5: 2: 1.5, and further comprises 1 to 3 parts by weight of rubber chips with respect to 100 parts by weight of the upper layer portion 40, 10), 0.5 to 1.5% by weight of potassium silicate.

The anti-peeling agent included in the second intermediate layer 30 may be selected from the group consisting of a thiazine series, a furan series, a polyphenyl quinoxaline (PPQ) series, a polybenzoxazole (PBO) series, a polybenzthiazole And the plastic block copolymer is formed of at least one selected from the group consisting of polyethylene, polybutene, polyethyleneimine, polyphenylene sulfide, And 20 to 23 parts by weight of isobutyrate, 8 parts by weight of isostearate 8, 10 parts by weight of isostearate, To 10 parts by weight, and 1.5 to 3 parts by weight of polologlucinol.

3, in order to increase the fixed binding force between the lower layer portion 10, the first intermediate layer portion 20, the second intermediate layer portion 30, and the upper layer portion 40 stacked for the construction of the present invention, 22 and 32 are formed in a predetermined pattern on the lower layer section 10, the first intermediate layer section 20 and the second intermediate layer section 30 so that the protrusions 12, It is possible to increase the fixed bonding force of the first interrupted layer portion 20, the second interrupted layer portion 30, and the uppermost layered portion 40 laminated corresponding to each other.

At this time, the protrusions 12, 22, and 32 may be provided with support bars 15, 25, and 35, respectively, in order to maximize mutual fixing force. The support bars 15, 25 and 35 may be made of a metal material, but they are preferably made of a synthetic resin material or a urethane material having elasticity in order to maintain the elasticity of the ascon.

At this time, the upper end surfaces of the support bars 15, 25 and 35 are positioned so as to protrude from the upper end surfaces of the projections 12, 22 and 32 so that the fixed fastening forces of the support rods 15, .

The asphalt contained in the upper layer portion 40 is preferably composed of 0.2 to 0.4 wt% of a hollow silicate powder in the lower layer portion 10 and the first intermediate layer portion 20, Modified high asphalt is prepared by mixing any one of styrene butadiene rubber, rubber powder or styrene butadiene styrene modifier in the asphalt, and has a viscosity of 700,000 to 750,000 poise at 80 DEG C, Preferably from 520 to 570 MPa, and the softening point is from 92 to 95 캜.

According to the asbestos composition improved in noise suppression function according to the present invention and the method of constructing asbestos using the composition as described above, two kinds of aggregates having different particle diameters are mixed, so that foreign substances such as dust penetrate into pores The noise reduction performance can be stably maintained while minimizing the thickness, and furthermore, when the rubber chip is further included in the upper layer, which is the surface layer, the function of absorbing and buffering shocks when passing through the vehicle is achieved, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be clarified. Therefore, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

10: lower layer portion 20: first lower layer layer
30: second stop layer 40: upper layer

Claims (13)

A lower layer portion 10 made of a composition of 75 to 80% by weight of an aggregate of 20 to 25 mm in particle diameter, 15 to 21% by weight of an aggregate of 10 to 15 mm in diameter, 2 to 5% by weight of limestone powder and 1 to 3% );
A slurry composition comprising 73 to 81% by weight of an aggregate having a particle diameter of 12 to 17 mm, 10 to 15% by weight of an aggregate having a particle diameter of 8 to 10 mm, 2 to 5% 0.5 to 1 wt% of an asphalt modifier, and 1 to 3 wt% of a moderate temperature additive;
A second halftone layer 30 of a composition of 78 to 83 wt% of a high elastic resin, 11 to 15 wt% of a plastic copolymer, 2 to 5 wt% of a mineral fiber filler, 2 to 5 wt% of a peeling inhibitor and 1 to 3 wt% );
The aggregate of 3 to 6 mm in particle size, the aggregate of 1 to 1.5 mm in particle size, 7 to 14 weight% of asphalt, 1 to 3 weight% of asphalt modifier, 3 to 6 weight% of anti- A top layer 40 made of a composition comprising 2 to 5 wt% of a resin and 1 to 3 wt% of a moderate temperature additive,
In the second stop layer 30, the plastic copolymer is formed of a copolymer in which at least one selected from polyethylene and polybutene and at least one selected from polyethyleneimine, polyphenylene sulfide, and polybenzimidazole are copolymerized And,
The lower layer layer 10, the first interlayer layer 20, the second interlayer layer 30 and the upper layer layer 40 are laminated at a thickness ratio of 5: 1.5: 2: 1.5. The upper layer layer 40, 1 to 3 parts by weight of rubber chips per 100 parts by weight of the lower stratum 10 and 0.5 to 1.5% by weight of potassium silicate with respect to 100 parts by weight of the lower stratum part 10. [ Composition.
delete The method according to claim 1,
The anti-peeling agent contained in the second intermediate layer 30 may be selected from the group consisting of a thiazine series, a furan series, a polyphenyl quinoxaline (PPQ) series, a polybenzoxazole (PBO) series, a polybenzthiazole An acid group, and an acid group.
The method of claim 3,
The dispersant contained in the second interstice layer 30 may be a composition containing 20 to 23 parts by weight of sorbitol, 8 to 10 parts by weight of isostearate and 1.5 to 3 parts by weight of polologlucinol in 100 parts by weight of hydrogenated oil Wherein the low-noise function is added.
5. The method of claim 4,
Wherein the lower layer layer (10) and the first intermediate layer (20) are further comprised of 0.2 to 0.4 wt% of a hollow silicate powder.
6. The method of claim 5,
The asphalt contained in the upper layer portion 40 is composed of a high-viscosity high viscosity modified asphalt. The high-viscosity high viscosity modified asphalt is prepared by mixing any one of styrene butadiene rubber, rubber powder or styrene butadiene styrene modifier in the asphalt, Wherein the viscosity at 80 DEG C is 700,000 to 750,000 poise, the bending strength of the binder is 520 to 570 MPa, and the softening point is 92 to 95 DEG C.
A lower layer portion 10 made of a composition of 75 to 80% by weight of an aggregate of 20 to 25 mm in particle diameter, 15 to 21% by weight of an aggregate of 10 to 15 mm in diameter, 2 to 5% by weight of limestone powder and 1 to 3% (S1);
The upper layer of the lower stratum 10 has 73 to 81% by weight aggregate of 12 to 17 mm in particle diameter, 10 to 15% by weight of aggregate of 8 to 10 mm in diameter, 2 to 5% by weight of limestone powder, (S2) of a first intermediate layer (20) composed of a composition consisting of 1 to 3 wt%, 3 to 5 wt% of asphalt, 0.5 to 1 wt% of an asphalt modifier, and 1 to 3 wt% of a moderate temperature additive;
The first interstice layer 20 has 78 to 83 wt% of a high elasticity resin, 11 to 15 wt% of a plastic copolymer, 2 to 5 wt% of a mineral fiber filler, 2 to 5 wt% of a peeling inhibitor, Forming a second stop layer 30 of a composition in weight percent (S3);
The aggregate of 3 to 6 mm in particle size, the aggregate of 1 to 1.5 mm in particle size, 7 to 14 weight% of asphalt, 1 to 3 weight% of asphalt modifier, 3 to 6 weight% of anti- (S4) of a top layer (40) composed of 2 to 5% by weight of a resin and 1 to 3% by weight of a moderate temperature additive,
The anti-peeling agent contained in the second intermediate layer 30 may be selected from the group consisting of a thiazine series, a furan series, a polyphenyl quinoxaline (PPQ) series, a polybenzoxazole (PBO) series, a polybenzthiazole And the plastic block copolymer is formed of at least one selected from the group consisting of polyethylene and polybutene, and at least one selected from the group consisting of polyethyleneimine, polyphenylene sulfide, polybenzimidazole Is dispersed in 100 parts by weight of hydrogenated oil, 20 to 23 parts by weight of sorbitol, 8 to 10 parts by weight of isostearate, And 1.5 to 3 parts by weight of polologlucinol,
The lower layer layer 10, the first intermediate layer 20, the second intermediate layer 30 and the upper layer 40 are laminated at a thickness ratio of 5: 1.5: 2: 1.5, Further comprising 1 to 3 parts by weight of a rubber chip with respect to 100 parts by weight of the lower layer part (10), and further comprising 0.5 to 1.5% by weight of potassium silicate with respect to 100 parts by weight of the lower layer part (10) A method of constructing an ascon by using the added ascon composition.
delete 8. The method of claim 7,
Wherein the lower layer layer (10) and the first intermediate layer (20) further comprise 0.2 to 0.4 wt% of a hollow silicate powder.
10. The method of claim 9,
22 and 32 are formed in a predetermined pattern on the lower layer section 10, the first intermediate layer section 20 and the second intermediate layer section 30 so that the protrusions 12, Wherein the first interlayer layer portion (20), the second interlayer layer portion (30), and the upper layer portion (40) are stacked in such a manner that the fixed bonding force of the first interlayer layer portion Way.
11. The method of claim 10,
Characterized in that each of the projections (12, 22, 32) is provided with support bars (15, 25, 35) made of a synthetic resin material or urethane material having elasticity for maximizing mutual fixed binding force. The method comprising:
12. The method of claim 11,
Wherein the upper surfaces of the support bars (15, 25, 35) are positioned so as to protrude from the upper surfaces of the projections (12, 22, 32).
13. The method of claim 12,
The asphalt contained in the upper layer portion 40 is composed of a high-viscosity high viscosity modified asphalt. The high-viscosity high viscosity modified asphalt is prepared by mixing any one of styrene butadiene rubber, rubber powder or styrene butadiene styrene modifier in the asphalt, Wherein the viscosity at 80 DEG C is 700,000 to 750,000 poise, the deflection point of the binder is 520 to 570 MPa, and the softening point is 92 to 95 DEG C. The asco-
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KR20150112248A (en) * 2014-03-27 2015-10-07 주식회사 포이닉스 Low noise pavement method and ascon mixture and modifying agent
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100872896B1 (en) * 2008-09-23 2008-12-10 진산아스콘(주) Environment affinity & low noise drainage asphalt concrete
KR101191089B1 (en) 2010-04-19 2012-10-15 주식회사 에코디텍 Draining or Permeable Pavement of Low-Noise Using Polymer
KR101046746B1 (en) * 2010-06-11 2011-07-06 주식회사 포이닉스 Modified asphalt composition and low noise type paved lmc material composition
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