KR101627553B1 - Reflection crack resistant, low noise, highly durable asphalt mixture and its thin layer surfacing pavement method - Google Patents

Abstract

Provided are: an economic and eco-friendly asphalt additive for inhibiting reflection crack and enhancing the durability of a road; an asphalt mixture comprising the same; and a method for paving a thin layer using the same. The inventors invents: a plant-type asphalt additive in which plant oil, naphthene-based oil, a mineral fiber, and an organic vulcanization accelerator are mixed; a low-noise asphalt mixture comprising the additive; and a method for paving a reflection crack-resistant, low-noise, and highly durable thin layer using the asphalt mixture.

Description

TECHNICAL FIELD [0001] The present invention relates to a low-noise, high-durability asphalt mixture,

The present invention relates to a low-noise, high-durability asphalt mixture and a thin layer packaging method using the same.

The design training of domestic asbestos packaging includes maintenance once in 20 years, but actually it is paid every 2-3 years. Road life is decreasing due to the increase of traffic volume and heavy vehicles, and the user is expecting a high level of road, and the frequent repacking causes a great economic burden.

Road pavement maintenance method can be divided into cutting overlay and non - cutting overlaying method, and non - cutting overlaying method is divided into general overlay and thin layer overlay.

The asphalt overlay maintenance method has a problem that the flatness is lowered due to the deformation of the existing road surface, and reflection cracks are generated in the overlay layer where the cracks are present in the lower layer.

The simplest method of reflection crack suppression is to increase the asphalt overlay thickness on the concrete pavement to increase the thickness of the crack to penetrate. This method has the advantage of reducing the deformation of the joint due to the traffic load due to the increase of the strength of the package because it can delay the time taken for the fracture due to the reflection crack. However, there is a disadvantage that the construction cost increases as the package becomes thicker (Asphalt Pavement Research Association, 1999).

The application of geosynthetic fiber has been used for asphalt pavement pavement since the late 1960s in order to extend the life of the pavement due to the order effect and reflection crack suppression effect. Since 1975, several US states have conducted studies on the construction and commonality of geosynthetically reinforced asphalt overlay pavements under different climatic conditions with the Federal Road Administration (FHWA). Most of the studies have shown that the geotextile reinforcement (2002b) that the thickness of the asphalt overlay layer can be reduced by significantly reducing the reflection cracking of the asphalt pavement layer.

Generally, the smaller the aggregate maximum number is, the greater the noise reduction effect is in a mixture of drainage or SMA (Stone Mastic Asphalt). Particularly, SMA is a mixture of gaps having a high ratio of coarse aggregate and filled with asphalt mortar in a gap formed by meshing of coarse aggregate. Since the pavement surface has pores, the functions such as drainage and noise reduction are somewhat deteriorated, but the durability is high.

The cutting overlay method can damage the road surface due to the existing road surface crushing and cutting, which may cause the durability of the road surface to be degraded after overlaying. In addition, there is a problem that environmental problems and processing costs are increased due to the generation and processing of waste that has been crushed and cut.

The general non-cutting overlay method has problems such as inconvenience of driving the vehicle due to the elevation of the road surface and difficulty in the treatment of the road, so that the area where overlaying is possible is limited.

In order to overcome the problems of the cutting overlay and the general overlay overlay, the present inventors have studied a method of overlaying a non-cut overlay layer.

Conventionally, a slurry chamber using a resin-based slurry chamber or an emulsified asphalt was used for the thin-layer pavement method.

The resin-based slurry chamber is a resin-based thin-layered package using epoxy, polyester resin, acrylic monomer, polyurethane, and polyurea resin, and has poor durability due to difference in hardening development depending on the application temperature and mechanical difference between resin and asphalt pavement. And it is difficult to be generalized because it is economical as an expensive material. In addition, since it is necessary to use a solvent, it is not environmentally friendly, and a slippery road of the resin layer is formed due to the loss of the slip-resistant aggregate as the common softening water passes. In addition, the resin-based slurry chamber is difficult to re-work, and there is a problem of waste recycling after the end of the common life.

There is a problem that the slurry room using emulsified asphalt has to control the traffic by increasing the curing time at room temperature and low temperature. In addition, there is a disadvantage that durability is insufficient due to physical properties of emulsified asphalt itself.

Disclosure of Invention Technical Problem [10] Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art and to provide an economical and environmentally friendly asphalt additive, an asphalt mixture containing the same, and a thin layer packaging method using the same, which suppresses reflection cracking, reduces noise, improves road durability The goal is to do.

In order to solve the above problems, the inventors of the present invention have conducted continuous research to provide a plant-type asphalt additive in which vegetable oil, naphthene oil, mineral fiber, synthetic rubber and organic vulcanization accelerator are mixed, a low-noise asphalt mixture containing the additive, We invented a thin layer pavement method.

In the present invention, the configuration of the prior art is solved.

First, the problem of reflection cracking in the overlay repair method is solved through gap size and fiber reinforcement, and crack resistance is improved by using a binder improved in adhesiveness and elongation.

Also, the problem of the repair method of cutting overlay is solved by adopting non - cutting overlay, and the problem of general non - cutting overlaying method is solved by using thin layer pavement method.

In addition, the problems caused by the mechanical differences between the existing packaging materials and the maintenance materials were overcome by using the asphalt-based materials.

The problem of lowering the sliding resistance of the resin-based slurry chamber was solved by increasing the surface void due to the gap size.

In addition, the problem of waste disposal occurring when applying the resin-based slurry chamber is solved by making the additive material into an asphalt-based resin so as to be usable as a regenerated asphalt.

In addition, in the present invention, the asphalt mixture containing the additive functions as a mesophase asphalt function, thereby enabling early opening of the traffic. By maintaining the modified asphalt function, the durability of the package is enhanced and the low noise function is exhibited, Respectively.

The asphalt binder of the present invention is required to have elongation, elasticity and tackiness and workability for thin layer packaging. 0.1 to 100 parts by weight of a tackifier resin is added to 100 parts by weight of an asphalt modifier mainly composed of a thermoplastic elastomer and more specifically a vinyl aromatic hydrocarbon-conjugated diene block copolymer having a melt flow rate of less than 15 g / And 20 to 60% by weight, and 5 to 100 parts by weight of a process oil having a kinematic viscosity at 40 DEG C of 70 to 900 mm2 / s, and 0.1 to 40 parts by weight of rubber per 100 parts by weight of the total amount of the components The modifier (hereinafter abbreviated as "RMC" in the present invention) is a synthetic rubber-based additive and is a highly elastic material. However, since the viscosity of the thin layer is high, the workability is deteriorated. In particular, RMC requires a compaction temperature of 160 ° C or more, and it is difficult to maintain the compaction temperature due to the characteristics of the thin layer. The process oil was examined to improve the workability. Naphthenic oil in process oil is excellent in compatibility with RMC and asphalt, and it is possible to maximize workability even in a small amount. In addition, the vegetable oil has excellent compatibility with the naphthenic oil, and it is confirmed that it is possible to remarkably improve the workability by increasing the flowability, reduce the amount of air pollutants generated, and is suitable for the mixture of the present invention.

The combination of RMC and process oil maximized the workability of the thin layer packaging and maximized the crack resistance by increasing the elongation. However, since the aggregate film thickness is decreased due to the decrease of the viscosity of the binder, The present inventors have studied reinforcing fibers. Although the diameter and length of the fibers are not particularly limited, it is preferable to use fibers having a diameter of 1 to 10 microns and a fiber length of about 200 to 1000 microns, more preferably a diameter of 4 to 6 microns and a length of about 500 microns, And the addition amount was determined in order to ensure an appropriate binder viscosity of the mixture of the present invention. In addition, the fibers are cationic sizing, which increases the dispersibility by increasing the surfactant chemically inside the asphalt, physically increasing the tensile strength of the asphalt by fiber dispersion and network formation. Inside the mixture, a network is formed to disperse the compressive stress from the top to reduce the plastic deformation, and to disperse tensile stress from the bottom to maximize the reflection crack resistance.

In this combination, we have developed a binder that has elasticity and resilience by RMC, workability by oil, workability and low-temperature elasticity reinforcement, network structure by fiber, and resistance to reflection cracks. However, since the binder is softened with such a combination, improvement in strength is required. The present inventors have confirmed that the use of an organic vulcanization accelerator as the strength improver in the above combination is effective. Sulfur is added to the double bonds contained in oil, asphalt and synthetic rubber so that the raw materials can constitute a chemical network. Such network formation can dramatically improve the mechanical properties of the asphalt binder.

In addition, the asphalt mixture containing the asphalt additive of the present invention can be installed and compacted at 15 to 25 mm by using an aggregate of 5 mm or less in order to lay down and compaction with a thin thickness. The aggregate has physical properties as an aggregate for an asphalt mixture, and in particular, it has a shape of a round aggregate, that is, a round aggregate. The asphalt mixture of the present invention maximizes the plastic deformation resistance by the aggregate bonding effect, the adhesive property of the binder, and the elastic function (Table 6). In addition, since the mixture temperature rapidly rises in the field by thin layer construction, the low temperature compaction performance is maximized (Table 7). In addition, the adhesive function of the binder maximizes the resistance to aggregate desorption (Table 8). The mixture was excellent in crack resistance due to the elongation, elasticity and elastic recovery function of the binder and maximized the reflection crack resistance (Table 9). The mixture of the present invention also maximized the reflection crack resistance (Table 10). In addition, securing the surface gap of the gap size maximized the slip resistance and the noise reduction (Table 11).

Table 1 below shows the composition and composition ratio of the asphalt additive of the present invention.

ingredient Composition ratio (% by weight) Asphalt modifier RMC 5 to 15 Naphthenic oil 50 to 80 vegetable oil 5-20 Mineral fiber 5-20 Organic vulcanization accelerator 0.1 to 0.5

Each component constituting the asphalt additive of the present invention will be described below.

asphalt Modifier RMC

0.1 to 100 parts by weight of a tackifying resin, 20 to 60% by weight of an aromatic component, and a kinematic viscosity at 40 占 폚 of 70 to 70 parts by weight based on 100 parts by weight of a vinyl aromatic hydrocarbon-conjugated diene block copolymer having a melt flow rate of less than 15 g / Wherein the asphalt modifier "RMC" comprising 5 to 100 parts by weight of process oil characterized in that the process oil is characterized by the fact that the asphalt modifier "RMC" contains 0.1 to 40 parts by weight of rubber per 100 parts by weight of the total amount of the components, And the tensile stress and the recovery force of the binder are imparted to increase the crack resistance. When the asphalt modifier "RMC" is less than 5% by weight, the elasticity is insufficient and durability, tensile stress and recovery force of the binder are imparted to increase the crack resistance, and when it exceeds 15% by weight, viscosity increases and workability drops sharply .

Naphthenic system  oil

The naphthenic oil used in the present invention contains 40 to 50% (w / w) naphthene rings and is composed of a high molecular weight, thereby increasing the mixing and dispersibility with RMC. This oil has a polar compound within 6%, has a lower viscosity index than paraffin oil, and has higher solubility, thereby increasing the emulsifying power of RMC and maximizing the dispersibility of the additive in the asphalt mixture. When it is less than 50% by weight, it is difficult to increase the mixing property and dispersibility with RMC, and when it exceeds 80% by weight, it is difficult to maintain physical strength due to excessive viscosity drop.

vegetable oil

In the present invention, at least one of various vegetable oils such as oleic acid, linoleic acid, linosinic acid, soybean oil, waste cooking oil, rapeseed oil, sunflower oil, palm oil, corn oil and the like can be selected and used. The amount of air pollutants (volatile organic compounds, VOCs) in the air can be significantly reduced. A vegetable oil having a kinematic viscosity of less than 300 DEG C at 40 DEG C improves the workability by increasing the fluidity of the mixture and minimizes the workability fluctuation due to the temperature drop due to the thin layer packaging. In other words, the vegetable oil causes the asphalt mixture to exhibit a mesophilic effect. The vegetable oil used in the present invention contains 6-10% of linolenic acid, and the fluidity is increased by the methyl ester in linolenic acid. The oil enhances the elongation of the binder to increase the crack resistance in the asphalt mixture and prevents its self-cracking and reflective cracking. When the content of the additive is less than 5% by weight, the effect of increasing the fluidity of the mixture is insufficient. When the content of the additive exceeds 20% by weight, it is difficult to maintain the physical strength due to excessive viscosity drop.

Mineral fiber

The mineral fibers used in the present invention are reinforced fibers made from basalt, diorite, or slag. The thin and uniform fibers form continuous microvoids to function as a soundproofing and absorb the vegetable oil and the naphthenic oil used in the additive of the present invention to increase the dispersibility in the production of the asphalt mixture. The fibers are present in the mixture between aggregates that are dispersed to a length of about 500 microns. The fibers present in the aggregate are cationic sizing, which improves the adhesion to asphalt and mixes with the binder to form a coating on the aggregate, thereby increasing peel and crack resistance. Mineral fibers have the effect of absorbing sound by changing the sound pressure energy into friction energy when the noise passes through the fiber by forming fine micro pores with thin and uniform fibers. There is no particular limitation on the diameter and the length of the mineral fiber, but inorganic fibers having a diameter of about 4 to 6 microns and a length of about 500 microns are preferably used to minimize the viscosity increase of the asphalt and exhibit optimum mixing and dispersibility. Since basalt reserves are sufficient in domestic steel mills, it is preferable to use basalt fibers. When it is less than 5% by weight, it is dispersed in the mixture to form a network, which makes it difficult to increase the peeling and cracking resistance, and when it exceeds 20% by weight, the viscosity increases and the workability drops sharply.

abandonment Vulcanization accelerator

All of the polymers exhibiting rubber-like elasticity are weak in intermolecular interactions, so that crosslinking is formed with a vulcanizing agent in order to prevent slippage between molecules and to improve physical properties in the production of rubber products. The organic vulcanization accelerator is a chemical agent which accelerates the vulcanizing power of the vulcanizing agent to shorten the vulcanization time, and improves the physical properties of the rubber by vulcanization. Organic vulcanization accelerators increase elasticity and resilience by adding 2 ~ 3% (w / w) of rubber raw materials. The higher the amount of vulcanization, the higher the strength and the more likely it is to break. In the present invention, the addition of sulfur to the double bonds of organic molecular chains such as asphalt, oil, SBS, etc. is promoted to bond single molecules or to connect the respective raw materials to improve physical properties such as elasticity and resilience. When the amount is less than 0.1% by weight, crosslinking (crosslinking) formation is insufficient and physical properties are difficult to improve. When the amount is more than 0.5% by weight, crosslinking (crosslinking) is excessively hardened and elasticity becomes insufficient.

The present invention

An asphalt modifier mainly comprising a thermoplastic elastomer;

Naphthenic process oil;

vegetable oil;

Mineral fibers; And

And an organic vulcanization accelerator. The present invention relates to a low-noise, high-durability asphalt additive.

In addition,

5 to 15% by weight of an asphalt modifier mainly comprising a thermoplastic elastomer;

50 to 80% by weight of naphthenic process oil;

5 to 20% by weight vegetable oil;

5 to 20% by weight of mineral fibers; And

And 0.1 to 0.5% by weight of an organic vulcanization accelerator. The present invention relates to a low-noise, high-durability asphalt additive.

Further, the present invention is characterized in that the asphalt modifying material comprising the above thermoplastic elastomer as a main component has a viscosity of 0.1 to 100 parts by weight, a content of aromatic components of 10 to 100 parts by weight per 100 parts by weight of a vinyl aromatic hydrocarbon-conjugated diene block copolymer having a melt flow rate of less than 15 g / Is 20 to 60% by weight and has a kinematic viscosity at 40 DEG C of 70 to 900 mm < 2 > / s, and further comprises 0.1 to 40 parts by weight of rubber per 100 parts by weight of the total amount of the components Asphalt modifier, and a low-noise, high-durability asphalt additive.

Further, the present invention relates to a reflection-crack-suppressing low noise, high-durability asphalt additive characterized in that the naphthenic oil contains 40 to 50 wt% naphthene rings.

Further, the present invention relates to a low-noise, high-durability asphalt additive for reflection crack prevention which is characterized in that the vegetable oil contains linoleic acid in an amount of 6 to 10%.

Further, the present invention relates to a low-noise, high-durability asphalt additive for reflection crack suppression which is characterized in that the mineral fiber is subjected to cation treatment.

The present invention also relates to a process for producing the organic vulcanization accelerator, wherein the organic vulcanization accelerator is at least one selected from aldehyde ammonia type, aldehyde amine type, guanidine type, thiourea type, thiazole type, thiuram type, dithiocarbomate type, xanthate type, And a low-noise, high-durability asphalt additive.

Also, the present invention relates to an asphalt admixture comprising 2 to 6% by weight of the asphalt admixture; And 94 to 98 wt% of asphalt; and a low-noise, high-durability asphalt binder.

Also, the present invention is characterized in that 0.1 to 100 parts by weight of a tackifying resin is added to 100 parts by weight of a vinyl aromatic hydrocarbon-conjugated diene block copolymer having a melt flow rate of less than 15 g / 10 min on a straight asphalt and straight asphalt, 20 to 60% by weight, and 5 to 100 parts by weight of a process oil having a kinematic viscosity at 40 占 폚 of 70 to 900 mm2 / s, and 0.1 to 40 parts by weight of rubber per 100 parts by weight of the total amount of the components Modified asphalt, and modified SBS modified asphalt to which a modifier is added. The present invention relates to a low-noise, high-durability asphalt binder for reflection crack suppression.

The present invention also relates to an asphalt binder comprising 5 to 8% by weight of the asphalt binder; 77 to 92% by weight of aggregate; And 3 to 15% by weight of a filler. The present invention relates to a low-noise, high-durability asphalt mixture.

In the present invention, the aggregate passes 100% of a 13 mm sieve, passes 90 to 100% of a 5 mm sieve, passes 35 to 50% of a 2.5 mm sieve, passes 15 to 25% of a 0.3 mm sieve, 0.0 > 8% < / RTI > sieve of 0.08 mm sieve. The present invention relates to a low-noise, high-durability asphalt mixture.

Further, the present invention relates to a low-noise and high-durability asphalt mixture for suppressing reflection cracks, characterized in that the aggregate is a porous aggregate having a rounded shape.

Further, the present invention relates to a reflection-crack-suppressing low-noise, high-durability colored asphalt mixture, wherein 1 to 10 parts by weight of an inorganic pigment is added to 100 parts by weight of the asphalt mixture.

Also, the present invention relates to a low-noise, high-durability asphalt mixture for suppressing reflection cracks, wherein 10 to 100% by weight of the aggregate is recycled aggregate.

Further, the present invention relates to a low-noise, high-durability asphalt mixture for suppressing reflection cracks, characterized in that the maximum value of the aggregate is 5 mm.

Further, the present invention relates to a low-noise and high-durability asphalt mixture for suppressing reflection cracks, characterized in that a coarse aggregate is added to the aggregate and the maximum aggregate count is 13 to 8 mm.

In addition, the present invention relates to a method of repairing and repairing a low-noise, high-durability anti-reflection cracking type asphalt mixture packed in a thin layer of 15 to 25 mm.

As a result of testing the physical properties of the asphalt mixture containing the additive according to the present invention, it was found that the fluidity, the crack resistance, the low temperature compaction performance, the slip resistance and the abrasion resistance were all superior to the comparative example, appear.

Therefore, the asphalt mixture containing the additive of the present invention is considered to be useful for thin layer packaging which suppresses reflection cracking and reduces noise.

Hereinafter, the configuration of the present invention will be described in more detail with reference to specific embodiments. However, it should be apparent to those skilled in the art that the scope of the present invention is not limited to the description of the embodiments.

Table 2 below shows composition ratios of the asphalt binder using the asphalt additive of the present invention. Those without the addition of the present invention were used as comparative examples.

Composition ratio (% by weight) Example 1 Comparative Example 1 The additive 2 to 6 3.5 - Modified asphalt 94 ~ 98 96.5 100

In the asphalt binder of the present invention, when the additive is less than 2% by weight, the function of the additive is not sufficiently exhibited. When the additive exceeds 6% by weight, the physical properties of the binder are deteriorated due to excessive flowability.

Table 3 below shows the penetration, elongation, softening point and low temperature bending energy test results for Example 1 and Comparative Example 1 in Table 2 above.

Binder test - Example 1 Modified asphalt
(Comparative Example 1) - Test Items unit Test result Test result Test Methods Intrusion 1 / 10mm 58 40 KS M 2252 15 ° C elongation cm 100 or more 68 KS M 2254 Softening point ℃ 62 55 KS M 2250 Bending energy (-10 ℃) kPa 1700 1400 KS M 2491 Bending energy (-20 ℃) kPa 800 480 KS M 2491

From the results of the softening point test shown in Table 3, it can be seen that the asphalt binder of the present invention has excellent high-temperature characteristics, i.e., fluidity resistance. In addition, from the results of the elongation and low-temperature bending energy test, it can be seen that the asphalt binder of the present invention has excellent low-temperature characteristics, that is, crack resistance.

Table 4 below shows the composition ratio of the asphalt mixture ("Ro-Facing") containing the asphalt additive of the present invention.

Composition ratio (% by weight) Example 2 Comparative Example 2 Asphalt binder 5.0 to 8.0 5.9 (Example 1) 5.4 (Comparative Example 1) aggregate 80 ~ 92 88.1 90.6 Filler 3 to 15 6.0 4.0

If the amount of the asphalt binder is less than 5 wt%, the durability of the asphalt binder may be insufficient due to the lack of the binder coat or the coating. If the amount of the binder is more than 8 wt%, the excessive binder may cause blistering on the surface, have.

The composite particle size of the asphalt mixture of Example 2 and Comparative Example 2 shown in Table 5 was applied to WC-2 of 2011.11 integrated guide of Ministry of Land, Transport and Maritime Affairs.

Standard (mm) 13.0 5.0 2.5 0.3 0.08 Particle size range (%) 100 90-100 35 to 50 15-25 8-13 Central granularity (%) 100.0 95.0 42.5 20.0 10.5

Table 6 below shows the results of testing the physical properties of the asphalt mixture of Example 2 and Comparative Example 2.

Asphalt mixture test - Example 2 Comparative Example 2 - Test Items unit Test result Test result Test Methods Marshall stability N 14,800 10,200 KS F 2337 Indirect tensile strength MPa 1.22 1.03 KS F 2382 Dynamic stability Times / mm 5,140 3,530 KS F 2374 Bending strength (25 ℃) MPa 3.45 2.88 KS F 2395 Bending strength (-10 ℃) MPa 11.3 7.22 KS F 2395

As a result of the Marshall stability, the indirect tensile strength and the dynamic stability test, the modified asphalt performance of the asphalt mixture of the present invention, that is, the fluidity resistance is excellent. Also, as a result of the test of the room temperature and low temperature bending strength, the crack resistance of the asphalt mixture of the present invention is excellent.

Table 7 below shows the compaction ratio of the asphalt mixture according to Example 2 according to the temperature.

Asphalt mixture test - Example 2 - Test Items unit Test result Test Methods Compaction rate at 160 ℃ % 100 KS F 2337 130 ° C compaction rate % 99.7 KS F 2353 Compaction rate at 100 ℃ % 98.1 KS F 2364

Table 8 below shows the cantablo loss ratio according to the temperature of the asphalt mixture of Example 2 of the present invention.

Mixture test - Example 2 - Test Items unit Test result Test Methods Cantabro loss rate (20 캜) % 0.9 KS F 2492 Cantabro loss rate (-20 캜) % 8.7 KS F 2492

Table 9 below shows the fatigue test results for the asphalt mixture of Example 2 of the present invention.

Asphalt mixture test - Example 2 Comparative Example 2 - Test Items unit Test result Test result Test Methods Fatigue test (0 캜, 500 탆) time 20,000 15,000 KS F 2378 Fatigue test (10 캜, 500 탆) time 45,000 30,000 KS F 2378 Fatigue test (20 캜, 500 탆) time 90,000 65,000 KS F 2378

As a result of the fatigue test, it can be seen that the asphalt mixture of the present invention is superior to the comparative example in various temperature ranges.

Asphalt mixture test - Example 2 Comparative Example 2 - Test Items unit Test result Test result Test Methods Crack 5mm Number of times to progress time 3,024 2,016 KS F 2374

As a result of measuring the number of reciprocations of the load wheel when the crack progressed to 5 mm, it can be seen that the embodiment of the present invention is about 1.5 times better than that of the comparative example as shown in Table 10.

Packing road test - Example 2 Comparative Example 2 - Test Items unit Test result Test result Test Methods Slip resistance (BPN) - 62 53 KS F 2375 Noise measurement dB 89.7 96.8 Measured noise meter

As a result of the slip resistance test as shown in Table 11, it can be seen that Example 2 of the present invention is superior in slip resistance to a reference value of 40 BPN, mild 45 BPN, and steep slope of 50 BPN or more. As a result of the noise measurement test, the test result of the second embodiment of the present invention is reduced by 7.1 dB compared to the noise measurement value of 96.8 dB of the general road, indicating that the noise reduction function is excellent.

Claims (17)

0.1 to 100 parts by weight of a tackiness-imparting resin, 20 to 60% by weight of an aromatic component, and a kinematic viscosity at 40 DEG C of 70 to 70 parts by weight based on 100 parts by weight of a vinyl aromatic hydrocarbon-conjugated diene block copolymer having a melt flow rate of less than 15 g / 5 to 15 parts by weight of an asphalt modifier further containing 0.1 to 40 parts by weight of rubber per 100 parts by weight of the total amount of the components;
50 to 80% by weight of naphthenic process oil;
5 to 20% by weight vegetable oil;
5 to 20% by weight of mineral fibers; And
0.1 to 0.5% by weight of an organic vulcanization accelerator; and a low-noise, high-durability asphalt additive.
The method according to claim 1,
Wherein the naphthenic process oil contains 40 to 50% by weight of a naphthene ring.
The method according to claim 1,
Wherein the vegetable oil contains 6-10% of linolenic acid.
The method according to claim 1,
Wherein the mineral fiber is subjected to cationic treatment, wherein the mineral fiber is cationically treated.
The method according to claim 1,
Wherein the organic vulcanization accelerator is at least one selected from the group consisting of aldehyde ammonia, aldehyde amine, guanidine, thiourea, thiazole, thiuram, dithiocarbomate, xanthate and sulfenamines. Crack suppression type Low noise and durable asphalt additive.
2 to 6% by weight of the asphalt admixture of any one of claims 1 to 5; And
0.1 to 100 parts by weight of a tackifier resin, 20 to 60 parts by weight of an aromatic component and 20 to 60% by weight of a tackifier resin, based on 100 parts by weight of a vinyl aromatic hydrocarbon-conjugated diene block copolymer having a melt flow rate of less than 15 g / To 5 parts by weight of a process oil having a kinematic viscosity at 70 to 900 mm < 2 > / s and 0.1 to 40 parts by weight of rubber per 100 parts by weight of the total amount of the components, 94 to 98 wt.% Of one selected from among SBS modified asphalt; and a reflective anti-cracking type low noise and durable asphalt binder.
5 to 8 wt% asphalt binder;
77 to 92% by weight of aggregate; And
And 3 to 15% by weight of a filler;
The asphalt binder
0.1 to 100 parts by weight of a tackiness-imparting resin, 20 to 60% by weight of an aromatic component, and a kinematic viscosity at 40 DEG C of 70 to 70 parts by weight based on 100 parts by weight of a vinyl aromatic hydrocarbon-conjugated diene block copolymer having a melt flow rate of less than 15 g / 5 to 15 parts by weight of an asphalt modifier further containing 0.1 to 40 parts by weight of rubber per 100 parts by weight of the total amount of the components;
50 to 80% by weight of naphthenic process oil;
5 to 20% by weight vegetable oil;
5 to 20% by weight of mineral fibers; And
2 to 6% by weight of a low-noise, high-durability asphalt admixture with a reflection-cracking-inhibiting type consisting of 0.1 to 0.5% by weight of an organic vulcanization accelerator; And
0.1 to 100 parts by weight of a tackifier resin, 20 to 60 parts by weight of an aromatic component and 20 to 60% by weight of a tackifier resin, based on 100 parts by weight of a vinyl aromatic hydrocarbon-conjugated diene block copolymer having a melt flow rate of less than 15 g / To 5 parts by weight of a process oil having a kinematic viscosity at 70 to 900 mm < 2 > / s and 0.1 to 40 parts by weight of rubber per 100 parts by weight of the total amount of the components, And a refractory crack-inhibiting low-noise and high-durability asphalt binder containing 94 to 98 wt% of one kind of asphalt selected from SBS-modified asphalt.
The method of claim 7,
The aggregate passed 100% of a 13 mm sieve, passed 90 to 100% of a 5 mm sieve, passed 35 to 50% of a 2.5 mm sieve, passed 15 to 25% of a 0.3 mm sieve, To 13% of the asphalt mixture.
The method of claim 7,
Wherein the aggregate is a porous aggregate having a rounded shape, and the aggregate is a round aggregate.
The method of claim 7,
Characterized in that 1 to 10 parts by weight of an inorganic pigment is added to 100 parts by weight of the asphalt mixture, and a colorless reflection crack prevention type low noise and durable asphalt mixture.
The method of claim 7,
Wherein 10 to 100% by weight of the aggregate is recycled aggregate, and a low-noise, high-durability asphalt mixture.
The method of claim 7,
Wherein the aggregate has a maximum aggregate count of 5 mm.
The method of claim 12,
Wherein the aggregate has a maximum aggregate count of 13 to 8 mm by adding coarse aggregate, and the low-noise and high-durability asphalt mixture of the reflection crack suppression type.
Claims [1] A method of repairing and repairing a low-noise, high-durability anti-reflective cracking type asphalt mixture of any one of claims 7 to 13 packed in a thin layer of 15 to 25 mm. delete delete delete