KR101543627B1 - Water-permeable asphalt composition comprising asphalt concrete waste - Google Patents

Abstract

The present invention relates to a methyl methacrylate resin mixture and a water-permeable asphalt composition containing asphalt concrete waste, which has much improved mechanical/chemical durability or the like; has excellent permeability and rut resistance; and can be produced, constructed, and maintained at room temperature, thereby being environmental-friendly to minimize the generation of odor, carbon dioxide and the like, when being constructed or packed.

Description

Water-permeable asphalt composition containing asphalt concrete waste containing waste asbestos [

The present invention relates to a water permeable asphalt composition comprising waste asbestos.

In recent years, problems such as accidents and time delays due to a sudden increase in traffic volume are increasing. Therefore, not only the repair work is increasing due to the increase of the portholes of the asphalt concrete pavement of various roads including automobile exclusive roads, pedestrian exclusive roads and bicycle exclusive roads of cities, provinces and municipalities, cracks and plastic deformation, Gas, waterworks, and wastewater pipelines, the amount of waste asbestos in the construction industry byproducts accounts for a considerable portion of the waste and is on an increasing trend. Unlike waste concrete, which is one of the most generated by-products of construction industry, such waste asbestos can not be used for concrete, backing materials for construction and auxiliary layer because it has asphalt emulsion on aggregate surface.

Therefore, in order to utilize such waste asbestos, it is partially used as heating or room temperature regenerated asphalt. However, application of high value added such as environmentally friendly water-repellent asphalt pavement which recycled waste asbestos is not enough.

In addition, the permeable concrete mainly used for bicycle roads and sidewalks of existing rivers is a rigid material using cement as a binder. It causes not only cracks due to deformation and sagging of the pavement, but also peeling or peeling of aggregate, There is a problem that frequent occurrence occurs.

As a result, not only the cracks are relatively small but also the permeable asphalt pavement which is easy to repair and reinforce is increasing. In addition, when the pavement is packed with such a water-permeable asphalt, it is possible to minimize adverse effects due to the oil component flowing into the river due to the excellent weatherability during construction.

Therefore, there is a need to develop an environmentally-friendly, water-repellent asphalt composition for recycling 100% of waste asbestos and constructing an environmentally friendly recycling pavement that is not harmful to the environment such as rivers and urban environments.

In addition, in order to solve the problem caused by accidents caused by water splashing due to rain or by side effects such as flood, general Korean asphalt currently being applied is disclosed in Korean Patent Publication No. 10-2004-0055956, for example, However, since the durability is poor as well as mechanical properties such as marshall and dynamic stability, modified modified asphalt mixed with epoxy is mainly used.

However, since the epoxy-permeable asphalt composition is heated and produced at a high temperature of 180 ° C during pyrolysis to generate a large amount of carbon dioxide, methyl methacrylate (methacrylate) as a regenerable water- MMA) monomers in water-soluble asphalt.

However, modified modified water permeable asphalt mixed with methyl methacrylate monomer has difficulty in handling, transportation and installation due to fast curability, which is a characteristic of methyl methacrylate monomer, and compared with modified modified water permeable asphalt mixed with epoxy There is still a problem of poor mechanical properties.

Accordingly, it is possible to provide a method for producing a thermoplastic elastomer composition containing waste asbestos which can minimize occurrence of difficulties such as handling, transportation and installation due to quick curability of a methyl methacrylate monomer without deteriorating the improved mechanical properties such as Marshall and dynamic stability and side effects It is necessary to study the permeable room temperature regenerated asphalt composition.

Korean Patent Publication No. 10-2004-0055956

The object of the present invention is to solve the problems such as deterioration of mechanical properties such as marshall and dynamic stability by environmental variables at the time of construction, and it is an object of the present invention to maintain the improved characteristics such as heat resistance, oil resistance, stability and mechanical / chemical durability And a water-permeable asphalt composition containing waste asbestos excellent in water permeability.

Another object of the present invention is to provide an asphalt composition having improved characteristics such as mechanical / chemical durability and excellent reproducibility with improved water permeability.

Another object of the present invention is to provide an environmentally friendly asphalt composition which is easy to produce, construct and repair at room temperature.

The present invention relates to a water permeable asphalt composition comprising a methyl methacrylate resin mixture having a viscosity of 18 to 340 cps comprising an acrylic monomer, a curing agent and a waste asphalt.

In one embodiment of the present invention, the acrylic monomer is not limited to a specific extent to achieve the object of the present invention, but may include, for example, methyl methacrylate monomer, butyl acrylate monomer and 2-ethylhexyl acrylate monomer.

In one embodiment of the present invention, the composition may further include one or more selected from epoxy resin, latex polymer, emulsifier, filler, and reinforcing agent.

In one embodiment of the present invention, the latex polymer is not limited to attain the object of the present invention, and examples of the latex polymer include styrene butadiene rubber, acrylobutadiene rubber, polychloroprene rubber, butyl rubber, natural rubber, nitrile butadiene rubber, Rubber, isoprene rubber, ethylene propylene diene monomer rubber, and the like.

In one embodiment of the present invention, the emulsifier is not limited as far as the object of the present invention is achieved. For example, the emulsifier may include any one or more selected from cationic emulsified asphalt, anionic emulsified asphalt, nonionic emulsified asphalt and modified emulsified asphalt can do.

In the example of the present invention, the filler is not limited to attaining the object of the present invention, and it is possible to use a filler such as cement, bittern, limestone, lime, gypsum, stone, toner, silica, bentonite, zeolite, clay, Steel making slag, blast furnace slag, ash, and the like.

In one example of the present invention, the reinforcing agent is not limited to achieve the object of the present invention, but may include any one or two or more selected from polyvinyl alcohol fiber, polypropylene fiber, cellulose fiber and carbon fiber.

In one embodiment of the present invention, the composition is not limited to achieve the object of the present invention. For example, 0.01 to 20 parts by weight of a latex polymer, 0.01 to 20 parts by weight of an emulsifier, 0.01 to 20 parts by weight of a filler, And 0.001 to 1 part by weight of the reinforcing agent, and the like.

In one example of the present invention, the composition is not limited to achieve the object of the present invention, but any one or more selected from styrene butadiene rubber, cement, polyvinyl alcohol fiber, polypropylene fiber, cellulose fiber, . ≪ / RTI >

In one embodiment of the present invention, the composition may further comprise a polystyrene-block-poly (4-vinylpyridine) copolymer.

In one example of the present invention, the waste asbestos is not limited to achieve the object of the present invention, but may be, for example, waste asbestos particles having an average particle size of 1 to 50 mm.

In one example of the present invention, the waste asbestos particles are not limited to achieve the object of the present invention, but may be, for example, those having a layer of the curing agent on the surface of the particles.

By directly applying the methyl methacrylate resin, the water-permeable asphalt composition containing the waste asbestos of the present invention is improved in mechanical / chemical durability and the like, and is excellent in cracking, plastic deformation, jamming, Or deformation can be minimized.

Further, the water-permeable asphalt composition containing the waste asbestos of the present invention is advantageous in that it can maintain the above characteristics and has excellent water permeability.

Further, the water-permeable asphalt composition containing the waste asbestos of the present invention is characterized by excellent reproducibility without deteriorating the above characteristics and permeability.

Further, the water-permeable asphalt composition containing waste asbestos of the present invention can be applied directly to the methyl methacrylate resin, thereby providing excellent flow resistance and easy production, construction and repair at room temperature, minimizing odor generation and carbon dioxide generation There is a feature that can be.

Hereinafter, the water-permeable asphalt composition containing waste asbestos of the present invention will be described in detail.

Here, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. In the following description, the gist of the present invention is unnecessarily blurred And a description of the known function and configuration will be omitted.

Also, units of% used herein without specific reference to weight means weight.

The present invention relates to a water permeable asphalt composition comprising a methyl methacrylate resin mixture having a viscosity of 18 to 340 cps comprising an acrylic monomer, a curing agent and a waste asphalt.

In one example of the present invention, the viscosity of the methyl methacrylate resin mixture is not particularly limited so long as the object of the present invention is achieved, but may be, for example, 18 to 340 cps. When the viscosity range is satisfied, stability is improved and the composition can be maintained without chemical deformation for a longer period of time. In addition, when the composition contains a methyl methacrylate resin mixture satisfying the viscosity range and a waste asbestos particle having a curing agent layer formed on the surface thereof, the crosslinked asbestos particles formed with the curing agent layer and the methyl methacrylate resin mixture The stability can be improved.

In one example of the present invention, the methyl methacrylate resin mixture not only imparts excellent overall characteristics including permeability, Marshall stability and dynamic stability to the composition, but also has excellent chemical resistance and can be sprayed with calcium chloride for winter slip prevention The chemical modification according to the present invention can be minimized. In addition, excellent reproducibility characteristics capable of maintaining such improved characteristics can be given. In addition, it is possible to minimize problems such as deformation of physical properties due to drying, difficult handling due to rapid curing speed, and temperature control, and thus the stability of the composition can be further improved.

In one embodiment of the present invention, the content ratio of the methyl methacrylate resin mixture is not limited to attain the object of the present invention, but may be 0.05 to 20 parts by weight, preferably 0.1 to 20 parts by weight, 15 parts by weight, and more preferably 0.5 to 10 parts by weight. When the above range is satisfied, problems such as durability and stability deteriorate due to the presence of a trace amount of methyl methacrylate resin, problems in that the improvement of the properties due to the presence of a large amount of methyl methacrylate resin is insignificant, It is possible to minimize construction problems due to rapid drying characteristics of the acrylate resin.

In one embodiment of the present invention, the methyl methacrylate resin mixture includes poly (methyl methacrylate) (PMMA). The above mixture containing polymethylmethacrylate can further reduce the preparation time and the construction time of the composition and can minimize the modification of mechanical properties such as Marshall stability, dynamic stability and permeability due to environmental variables, And can have stability and stability.

In one embodiment of the present invention, the polymethylmethacrylate is not limited so long as the object of the present invention is achieved. However, the polymethylmethacrylate may be present in the mixture in various forms such as a pellet, a dispersed phase, an emulsion or a mixed solution. The weight-average molecular weight of the polymethylmethacrylate is not limited as long as the object of the present invention is achieved. For example, it may be 80,000 to 800.

In one example of the present invention, the methylmethacrylate resin mixture is not limited to attain the object of the present invention. For example, the methylmethacrylate resin mixture may contain 10 to 50% by weight of polymethylmethacrylate, May contain 50 to 90% by weight of the monomer, preferably 20 to 40% by weight of polymethylmethacrylate and 60 to 80% by weight of the acrylic monomer, more preferably 25 to 30% by weight of polymethylmethacrylate, 35% by weight of acrylic monomer and 65 to 75% by weight of acrylic monomer.

In one embodiment of the present invention, the acrylic monomer is not limited to achieve the object of the present invention, and examples thereof include methyl methacrylate monomer, butyl acrylate monomer, 2-ethylhexyl acrylate monomer, butyl methacrylate monomer, 2 -Hydroxyethyl methacrylate monomer, ethyl acrylate, isopropyl acrylate, methyl acrylate, ethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, n-hexyl methacrylate, lauryl methacrylate Acrylonitrile, vinyl acetate, vinyl toluene, glycidyl methacrylate, methacrylic acid, maleic acid, and the like may be contained in the resin composition of the present invention.

In an example of the present invention, when an acrylic monomer including both a methyl methacrylate monomer, a butyl acrylate monomer and a 2-ethylhexyl acrylate monomer is used, stability during handling, transportation, or construction as well as post- Can be improved. It is possible to minimize the problem that physical properties such as water permeability and stability after construction or packaging are changed or deteriorated due to, for example, minute changes in physical properties due to drying due to time delay before actual construction or packaging. Particularly, although the stability is improved, the decrease of the permeability is not caused, and even when the components for improving the stability are further mixed, the decrease of the permeability is less effective. Even when components such as an epoxy resin, a latex polymer, a curing agent, an emulsifier, a filler and a reinforcing agent are further mixed, there is no deterioration in mechanical properties such as water permeability and stability, or side effects, and a stable phase can be maintained. Further, it is possible to lower the temperature at the time of production or construction, and it is possible to control the temperature by mixing with waste asbestos to lower the mixing temperature at the time of production, and it is possible to minimize fuel consumption and generation of carbon dioxide.

In one embodiment of the present invention, the amount ratio of each of the acrylic monomers is not limited as far as the object of the present invention is achieved. For example, the acrylic monomer may contain 60 to 70% by weight of methyl methacrylate monomer, 15 to 25% by weight, and 5 to 15% by weight of 2-ethylhexyl acrylate monomer. When the above-mentioned range is satisfied, the above effect can be maximized, but this is a preferred example, but the present invention is not limited thereto.

In one embodiment of the present invention, the curing agent may impart improved stability to the composition. Specifically, the curing agent is not limited as long as the object of the present invention is achieved. The curing agent may be, for example, an aromatic curing agent, an amine curing agent, an acid anhydride curing agent, an imidazole curing agent, a carboxylic acid curing agent, an organic acid hydrazide curing agent, , A polyol-based curing agent, an oxazoline-based curing agent, and a melamine-based curing agent. The curing agent may be a monomer, a low polymer, a polymer (polymer), or a mixture thereof, and is widely known throughout the various fields, so that it can be used without limitation.

In one embodiment of the present invention, the content of the curing agent is not limited to attain the object of the present invention, but may be 0.1 to 20 parts by weight of the curing agent, for example, 100 parts by weight of waste asbestos.

In one embodiment of the present invention, the composition may further include one or more selected from the group consisting of an epoxy resin, a latex polymer, an emulsifier, a filler, and a reinforcing agent.

In one embodiment of the present invention, the epoxy resin may impart more improved stability characteristics to the composition. Specifically, the content ratio of the epoxy resin is not limited as long as the object of the present invention is achieved. For example, 0.05 to 20 parts by weight of an epoxy resin may be contained relative to 100 parts by weight of waste asbestos. When the content ratio is satisfied, problems such as handling, transportation, or difficulty in maintaining the composition prior to installation can be minimized, and the stability can be further improved.

In one embodiment of the present invention, the latex polymer is not limited to attain the object of the present invention, and examples of the latex polymer include styrene butadiene rubber, acrylobutadiene rubber, polychloroprene rubber, butyl rubber, natural rubber, nitrile butadiene rubber, Rubber, isoprene rubber, ethylene propylene diene monomer rubber, and the like. When the listed latex polymers are used, the elastic modulus can be increased to improve the stability such as Marshall stability and dynamic stability. Therefore, it is possible to minimize side effects such as various cracks and deformation such as low-temperature crack, fatigue crack, and impact crack. Other well-known latex polymers can be used, so the present invention is not limited thereto.

In one embodiment of the present invention, the emulsifier is not limited to attain the object of the present invention. For example, any one or two or more selected from the group consisting of emulsified asphalt, anionic emulsified asphalt, nonionic emulsified asphalt and modified emulsified asphalt . Further, other well-known emulsifiers can be used, so the present invention is not limited thereto.

In the example of the present invention, the filler is not limited to attaining the object of the present invention, and it is possible to use a filler such as cement, bittern, limestone, lime, gypsum, stone, toner, silica, bentonite, zeolite, clay, Steel making slag, blast furnace slag, ash, and the like. When the fillers listed above are used, the flexibility of the mixture can be improved to improve stability such as Marshall stability and dynamic stability, as well as to facilitate handling and transportation. In addition, since it can serve as a binder for a filler or a waste ascon, the composition can be manufactured and installed at a lower temperature. Further, other well-known fillers can be used, so that the present invention is not limited thereto.

In one embodiment of the present invention, the reinforcing agent is not limited to attain the object of the present invention, but includes any one or more selected from among polyvinyl alcohol fiber, polypropylene fiber, cellulose fiber and carbon fiber . When the reinforcing agents listed above are used, durability and supporting force can be increased, and stability such as Marshall stability and dynamic stability can be improved. Further, other well-known reinforcing agents can be used, so that the present invention is not limited thereto.

In one embodiment of the present invention, the composition is not limited to achieve the object of the present invention. For example, 0.01 to 20 parts by weight of a latex polymer, 0.01 to 20 parts by weight of an emulsifier, 0.01 to 20 parts by weight of a filler, 20 to 30 parts by weight of a reinforcing agent, and 0.001 to 1 part by weight of a reinforcing agent. When the above range is satisfied, the water permeability and stability can be further improved, but this is a preferred example, but the present invention is not limited thereto.

In one example of the present invention, the composition is not limited to attain the object of the present invention, and any one selected from the group consisting of styrene butadiene rubber, cement, polyvinyl alcohol fiber, polypropylene fiber, cellulose fiber and carbon fiber Or two or more. When the above listed components are further included, the Marshall stability and the dynamic stability can be further improved while maintaining the water permeability above the required minimum value surprisingly.

In one embodiment of the present invention, the composition may further comprise a polystyrene-block-poly (4-vinylpyridine) copolymer. When the copolymer is further included, the stability can be further improved without affecting other elements or physical properties as well as maintaining the permeability above the required minimum value. In particular, better stability can be maintained even in a broader temperature range including room temperature, and can be maintained for a long period without chemical modification of the composition. On the other hand, when the composition is installed and asphalt is applied, quick drying or hardening can be induced and the construction can be completed in a shorter time.

For example, the polystyrene-block-poly (4-vinylpyridine) copolymer may be dissolved in various organic solvents, and the weight ratio thereof when mixed with the mixture is not limited to achieve the object of the present invention, And 0.1 to 10 parts by weight of the styrene-butadiene block copolymer relative to 100 parts by weight of the ascon.

As a specific example, the polystyrene-block-poly (4-vinylpyridine) copolymer is not particularly limited so long as it achieves the object of the present invention. For example, polystyrene number average molecular weight is 10 to 100 kg / mol, ) May have a number average molecular weight of 3 to 50 kg / mol and a weight average molecular weight / number average molecular weight of 0.9 to 1.1. When the above-mentioned range is satisfied, e) the above-mentioned problems occurring in the curing step can be further minimized, so that the stability can be further improved without being influenced by other factors or properties, have. However, this is a preferable example, but the present invention is not limited thereto.

Generally, the permeability tends to increase as the particle size of waste asbestos increases, but the mechanical stability such as stability tends to be rather reduced. However, the water permeable normal temperature asphalt composition of the present invention can maintain the permeability to a maximum and at the same time minimize the deterioration of the mechanical stability.

In one example of the present invention, the waste asbestos is not limited to achieve the object of the present invention, but may be, for example, 1 to 50 mm, preferably 3 to 25 mm, more preferably 5 to 13 mm, May be pulverized asbestos particles having an average particle size of 5 to 10 mm. It is theoretically preferable to use a single particle size distribution of the waste asbestos having a particle size within the above range. However, the use of a single particle size is not preferable because the use of waste asbestos having an average particle size in the above- desirable. When the particle diameter is within the above-mentioned range, the water permeable property can be kept to the maximum while being mixed and bonded with the methyl methacrylate resin, and thus can have improved Marshall stability and dynamic stability. However, this is a preferred example and the present invention is not limited thereto.

In one example of the present invention, the waste asbestos particles are not limited to achieve the object of the present invention, but may be, for example, those having a layer of the curing agent on the surface of the particles. This is for further improving the stability of the composition, and it can improve the bonding strength between the monomer such as methyl methacrylate and the waste asbestos particles contained in the methyl methacrylate resin mixture, and thus can have more improved stability. Specifically, in the drying or curing process, a layer of the curing agent formed on the surface of the pulverized asbestos particles (e.g., applied and formed) is crosslinked with the methyl methacrylate monomer to form a mixture of the pulverized asbestos particles and the methyl methacrylate resin (or methyl methacrylate monomer ) Can be improved, so that a more stable state can be maintained chemically or physically, and overall stability can be improved. In addition, although the overall stability is improved, side effects such as decreased permeability do not occur.

In one embodiment of the present invention, the method of forming the curing agent layer on the waste asbestos particles may be classified according to whether the curing agent is liquid or solid. In the case of a liquid, for example, And in the case of a solid phase, for example, a method of immersing and drying waste asbestos in a solution in which a curing agent is dispersed or dissolved in an organic solvent, and the like can be exemplified. There is no limitation as long as it is a method capable of forming a curing agent layer on the surface of the waste asbestos.

In the example of the present invention, the kind of the curing agent for forming the curing agent layer in the waste asbestos particles is not limited to attain the object of the present invention, but it is preferable to use an aromatic curing agent including dibenzoyl peroxide and phthalate It is preferable that a curing agent layer is formed on the surface of the waste asbestos particles so that ultimate stability can be obtained. Specifically, for example, trade name Perkadox CH-50L and the like can be mentioned.

In the example of the present invention, the physical properties of the waste asbestos are not limited as far as the object of the present invention is achieved. For example, the density may be 2.50 to 2.80 g / cm ³ or the absorption rate may be 3.0 to 4.5% However, the present invention is not limited thereto.

In one example of the present invention, the water-permeable asphalt composition of the present invention is not limited to the upper limit value due to any one of the above-described constitutions, but may have a Marshall stability of 5,000 to 50,000 N, a viscosity of 4,000 to 20,000 times / Dynamic stability or a permeability coefficient of 0.01 to 0.05 cm / sec.

In one example of the present invention, the water permeable asphalt composition of the present invention can be applied to automobile roads, pedestrian-only roads, bicycle-dedicated roads, India, stadium floors and the like. However, not only the construction method of the present invention can be used in places other than the above but also various finishing materials other than the floor. Further, any place that can be used in accordance with the idea of the present invention can be used regardless of the field.

EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples. However, the present invention is described in more detail with reference to the following Examples. However, the scope of the present invention is not limited by the following Examples.

[Example 1]

30% by weight of polymethylmethacrylate, 45% by weight of methylmethacrylate monomer, 15% by weight of butyl acrylate monomer, 15% by weight of butyl acrylate monomer, , 4 parts by weight of a methyl methacrylate resin mixture (CM300, LGMMA) containing 8% by weight of 2-ethylhexyl acrylate monomer and the balance and 0.12 parts by weight of a curing agent (PERKADOX CH-50L, Akzo Nobel) And the mixture was homogeneously mixed for 3 minutes to prepare a water permeable room temperature regenerated asphalt composition.

(KS F 2337), flow rate (KS F 2337), permeability coefficient (KS F 2594), porosity (KS F 2364) and dynamic stability (KS F 2374) of the composition were measured. Specifically, the composition was tested for stability and flow according to KS F 2337 " Marshall Stability and Flow Test Method of Asphalt Mixture Using Marshall Tester ", and the porosity was measured according to KS F 2364 Was measured according to KS F 2385 "Permeability Asphalt Mixture" Annex A (Regulation) "Permeability Test Method for Permeable Asphalt Mixture", and according to KS F 2374 "Wheel Tracking Test Method for Asphalt Mixture" Was measured.

[Example 2]

Example 1 was carried out in the same manner as in Example 1 except that the particles were crushed to have a particle distribution of 5 to 5 to 13 mm instead of crushed to have a particle distribution of 5 to 10 mm.

[Example 3]

Except that 2 parts by weight of styrene butadiene rubber (SBR 1500S, KKPC) was further mixed in an omni mixer.

[Example 4]

Except that 4 parts by weight of cement (one kind of ordinary Portland cement, Ssangyong Cement) was further mixed in an omni mixer.

[Example 5]

Except that 0.0081 parts by weight of polyvinyl alcohol fiber (Supercon-FRC, ASE Industry) was further mixed into an omni mixer.

[Example 6]

Except that 0.0081 parts by weight of cellulose fibers (Ascon-cell, ASE Industry) was further mixed into an omni mixer.

[Example 7]

4 parts by weight of cement (one kind of ordinary Portland cement, Ssangyong Cement), 0.0081 parts by weight of polyvinyl alcohol fiber (Supercon-FRC, ASE Industry) and 0.0081 parts by weight of cellulose fiber (Ascon-cell, ASE Industry) were further mixed in an omni mixer , The same procedure as in Example 3 was carried out.

[Example 8]

Polystyrene block poly (4-vinylpyridine) (PS-b-P4VP, Mn polystyrene = 39.2 kg / mol, Mn poly (4-vinylpyridine) = 15.3 kg / mol, Mw / Mn = 1.06) Except that 3 parts by weight of a solution obtained by dissolving the compound in an amount of 10% by weight was further mixed in an omni mixer.

[Example 9]

, 2.5 parts by weight of methyl methacrylate resin (HP202, LGMMA) and 1.5 parts by weight of methyl methacrylate monomer were used in place of 4 parts by weight of the methyl methacrylate resin mixture (CM300, LGMMA) , The same procedure as in Example 1 was carried out.

[Comparative Example 1]

Except that 4 parts by weight of an emulsified asphalt (MSC-2, KKK) was used instead of 4 parts by weight of a methyl methacrylate resin mixture (CM300, LGMMA) of Example 1 .

[Comparative Example 2]

The procedure of Example 1 was repeated, except that 4 parts by weight of methyl methacrylate monomer was used instead of 4 parts by weight of methyl methacrylate resin mixture (CM300, LGMMA) of Example 1.

[Comparative Example 3]

Except that 4 parts by weight of methyl methacrylate resin (HP202, LGMMA) was used instead of 4 parts by weight of the methyl methacrylate resin mixture (CM300, LGMMA) of Example 1, Respectively.

Table 1 below shows the results of measurement of stability, flow value, porosity, permeability coefficient and dynamic stability according to Examples 1 to 9 and Comparative Examples 1 to 3.

[Table 1]

It was confirmed that in Examples 1 to 9 using methyl methacrylate resin, stability and dynamic stability were relatively improved as compared with Comparative Examples 1 and 2 in which no methyl methacrylate resin was used there was.

In the case of Example 1 using the butyl acrylate monomer and the 2-ethylhexyl acrylate monomer, the relative stability and the dynamic stability were higher than those of the Example 9 in which the butyl acrylate monomer and the 2-ethylhexyl acrylate monomer were not used Was improved.

In addition, the porosity and permeability coefficient tended to decrease slightly as the components were added, but the flow value, stability and dynamic stability were significantly increased.

In addition, in Example 8 using a polystyrene-block-poly (4-vinylpyridine) solution, it was confirmed that stability and dynamic stability were improved without decreasing porosity and permeability coefficient.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.

Claims (8)

A water permeable asphalt composition comprising a methyl methacrylate resin mixture having a viscosity of 18 to 340 cps comprising an acrylic monomer, a curing agent, a waste ascon and a polystyrene-block-poly (4-vinylpyridine) copolymer. The method according to claim 1,
Wherein the acrylic monomer comprises a methyl methacrylate monomer, a butyl acrylate monomer, and a 2-ethylhexyl acrylate monomer. The method according to claim 1,
Wherein the composition further comprises one or more selected from an epoxy resin, a latex polymer, an emulsifier, a filler and a reinforcing agent,
The latex polymer includes any one or more selected from styrene butadiene rubber, acrylobutadiene rubber, polychloroprene rubber, butyl rubber, natural rubber, nitrile butadiene rubber, butadiene rubber, isoprene rubber and ethylene propylene diene monomer rubber ,
Wherein the emulsifier comprises one or more selected from among cationic emulsified asphalt, anionic emulsified asphalt, nonionic emulsified asphalt and modified emulsified asphalt,
Wherein the filler comprises one or more selected from among cement, bittern, limestone, slaked lime, gypsum, limestone, toner, silica, bentonite, zeolite, clay, mica, carbon black, steelmaking slag, blast furnace slag,
Wherein the reinforcing agent comprises at least one selected from polyvinyl alcohol fiber, polypropylene fiber, cellulose fiber and carbon fiber. The method of claim 3,
Wherein the composition comprises one or more selected from 0.01 to 20 parts by weight of a latex polymer, 0.01 to 20 parts by weight of an emulsifier, 0.01 to 20 parts by weight of a filler and 0.001 to 1 part by weight of a reinforcing agent, based on 100 parts by weight of waste asbestos Lt; / RTI > asphalt composition. The method of claim 3,
Wherein the composition comprises one or more selected from styrene butadiene rubber, cement, polyvinyl alcohol fiber, polypropylene fiber, cellulose fiber and carbon fiber. delete The method according to claim 1,
Wherein the waste asbestos is a waste asphalt particle having an average particle size of 1 to 50 mm. 8. The method of claim 7,
Wherein the waste asbestos grains have a curing agent layer formed on the surface of the particles.