KR101776234B1 - Asphalt sealant using waste part of vehicle - Google Patents

Asphalt sealant using waste part of vehicle Download PDF

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Publication number
KR101776234B1
KR101776234B1 KR1020150173788A KR20150173788A KR101776234B1 KR 101776234 B1 KR101776234 B1 KR 101776234B1 KR 1020150173788 A KR1020150173788 A KR 1020150173788A KR 20150173788 A KR20150173788 A KR 20150173788A KR 101776234 B1 KR101776234 B1 KR 101776234B1
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South Korea
Prior art keywords
waste
asphalt
pvb film
vehicle
synthetic rubber
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KR1020150173788A
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Korean (ko)
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KR20170067293A (en
Inventor
김완상
김준형
류득현
이범우
Original Assignee
현대건설 주식회사
유진기업 주식회사
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Priority to KR1020150173788A priority Critical patent/KR101776234B1/en
Publication of KR20170067293A publication Critical patent/KR20170067293A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
    • 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
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/20—Recycled plastic
    • C08L2207/22—Recycled asphalt
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/30—Environmental or health characteristics, e.g. energy consumption, recycling or safety issues
    • C08L2555/34—Recycled or waste materials, e.g. reclaimed bitumen, asphalt, roads or pathways, recycled roof coverings or shingles, recycled aggregate, recycled tires, crumb rubber, glass or cullet, fly or fuel ash, or slag

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processing Of Solid Wastes (AREA)
  • Sealing Material Composition (AREA)

Abstract

The asphalt sealant according to the present invention is characterized in that the talc crushed talc or the waste glass powder of the vehicle is used as a filler fine powder and the asphalt binder is provided with a waste PVB film separated from the waste windshield of the vehicle, By mixing the synthetic rubber, it is possible to inject more smoothly through cracks in cracks during asphalt road repair and to recycle waste, which can improve the recycling rate of scrap cars and reduce the waste disposal cost.

Figure R1020150173788

Description

Technical Field [0001] The present invention relates to an asphalt sealant using waste parts of a vehicle,

More particularly, the present invention relates to an asphalt sealant for repairing cracks in an asphalt road by using a waste PVB film, a waste synthetic rubber and a filler fine powder, And more particularly, to an asphalt sealant using waste parts of a vehicle that can enhance the utilization of waste resources and a method of manufacturing the same.

Generally, the windshield of a vehicle consists of glass and PVB film. Waste glass that is discarded due to vehicle's scrapping or repair is separated into waste glass and waste PVB film, and waste glass is sold as recycled glass.

However, the waste PVB film separated from the waste windshield has a problem of waste of resources and environmental pollution due to limited commercialization of recycling technology or application field.

In addition, there is a problem of waste of resources and environmental pollution because synthetic rubber used for buffering and waterproofing of vehicle molding, car door, trunk and the like has few recycling techniques and applications.

Korean Patent Publication No. 1998-0043508

It is an object of the present invention to provide an asphalt sealant using a waste PVB film separated from a windshield of a vehicle, a molding of a vehicle, and a waste part of a vehicle capable of recycling waste synthetic rubber separated from a buffering member and a method of manufacturing the same. have.

The asphalt sealant according to the present invention comprises a filler fine powder and an asphalt binder, wherein the filler fine powder is a talc obtained by crushing talc or waste glass powder of a vehicle, and the asphalt binder is used in an asphalt- Separated and pretreated waste PVB film is mixed with pretreated waste synthetic rubber separated from vehicle interior.

The asphalt sealant according to another aspect of the present invention comprises 5 to 10 wt% of a filler fine powder and 90 to 95 wt% of an asphalt binder, and the filler fine powder is used in an amount of 5 to 10 wt% The asphalt binder is used in an amount of 65 to 80 wt% asphalt, 1 to 5 wt% of pretreated waste PVB film separated from the waste windshield of the vehicle, 5 to 20 wt% of waste synthetic rubber pretreated by separation from the interior material of the vehicle, 0.1 to 2 wt%, a dispersant of 0.1 to 3 wt%, an elastic additive of 3 to 5 wt%, and a process oil of 1 to 5 wt%.

A method for manufacturing an asphalt sealant according to the present invention comprises the steps of separating a waste PVB film from a waste windshield of a vehicle and separating waste synthetic rubber from the interior of the vehicle; Pretreating the separated waste PVB film and the waste synthetic rubber, respectively; 1 to 5 wt% of asphalt, 1 to 5 wt% of the waste PVB film, 5 to 20 wt% of the waste synthetic rubber, 0.1 to 2 wt% of a plasticizer, 0.1 to 3 wt% of a dispersant, 3 to 5 wt% Stirring the mixture to prepare an asphalt binder; Mixing 90 wt% to 95 wt% of the asphalt binder, talc pulverized talc or waste glass powder of the vehicle to 5 wt% to 10 wt% to prepare an asphalt sealant.

The asphalt sealant according to the present invention is characterized in that the talc crushed talc or the waste glass powder of the vehicle is used as a filler fine powder and the asphalt binder is provided with a waste PVB film separated from the waste windshield of the vehicle, By mixing the synthetic rubber, it is possible to inject more smoothly through cracks in cracks during asphalt road repair and to recycle waste, which can improve the recycling rate of scrap cars and reduce the waste disposal cost.

In addition, asphalt binders mixed with waste PVB films can reduce cold brittle fracture during the winter season.

Further, by mixing the waste synthetic rubber with the asphalt binder at 5 to 20 wt%, it is possible to improve the stability and elasticity at high temperature, thereby securing the high temperature during the summer and the deformation resistance of the sealant material by the heavy vehicle during the production of the asphalt sealant.

1 is a view showing the construction of an asphalt sealant according to an embodiment of the present invention.
FIG. 2 is a view showing a method of manufacturing the asphalt sealant shown in FIG. 1. FIG.

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

1 is a view showing the construction of an asphalt sealant according to an embodiment of the present invention.

The asphalt sealant 1 according to the embodiment of the present invention is used for repairing an asphalt road which fills the cracks when cracks occur on the asphalt road to fill the cracks. Since the asphalt sealant 1 must be injected into a narrow gap of the crack, it is important to adjust the elasticity and the viscosity to an appropriate level so as to mitigate smooth injection and frictional brittle fracture.

The asphalt sealant (1) comprises a filler fine powder (10) and an asphalt binder (20). The asphalt sealant 1 is mixed with 5 to 10 wt% of the filler fine powder 10 and 90 to 95 wt% of the asphalt binder 20.

The filled fine powder (10) uses talc obtained by pulverizing talc. The filled fine powder 10 has a density similar to that of the asphalt binder 20 for uniform dispersion when mixed with the asphalt binder 20. The filled fine powder 10 may be powdered waste glass of a vehicle or powder of another material having properties similar to those of the talc. When mixed with asphalt, there is no excessive sedimentation or volume expansion due to heating. The filler fine powder 10 has an effect of improving the rigidity, which prevents excessive flow of the asphalt binder 20 at a high temperature and suppresses deformation against an external force load. In addition, the specific gravity of the asphalt binder 20 can be lowered by mixing the filled fine powder 10 with the asphalt sealant 1, thereby improving the economical efficiency. In addition, since the filled fine powder 10 is a fine powder having a much finer particle size than general aggregate, the asphalt sealant 1 can be easily injected even if the gap of cracks in the asphalt road is very narrow.

The asphalt binder 20 includes the asphalt 21, the waste PVB film 22, the waste synthetic rubber 23, the plasticizer 24, the dispersant 25, the elastic additive 26 and the process oil 27 do.

The asphalt binder 20 comprises 65 to 80 wt% of the asphalt 21, 1 to 5 wt% of the waste PVB film 22, 5 to 20 wt% of the waste synthetic rubber 23, 0.1 to 2 wt% of the plasticizer 24 , 0.1 to 3 wt% of the dispersant (25), 3 to 5 wt% of the elastic additive (26), and 1 to 5 wt% of the process oil (27).

About 65 to 80 wt% of the asphalt 21 is mixed. As the asphalt 21, asphalt used for general road pavement may be used. The asphalt 21 is exemplified by using AP-5, but it is not limited thereto and it is of course possible to use another one. The quality of the asphalt 21 conforms to the KS M 2201 straight asphalt standard. The content of the waste PVB film 22 and the waste synthetic rubber 23 can be adjusted according to the penetration and softening point of the asphalt 21.

The waste PVB film 22 is mixed with about 1 to 5 wt%. The waste PVB film 22 is separated from the waste windshield of the vehicle, and then pretreated. However, the present invention is not limited to this, and the waste PVB film 22 can be recycled from any glass containing PVB film in addition to the waste windshield of the vehicle. The waste PVB film 22 may be separated using conventional commercial equipment to screen glass and film. The waste PVB film 22 increases the low-temperature brittle fracture resistance of the asphalt binder 20 and performs a mid-temperature action. Further, the waste PVB film 22 functions to lower the melting temperature of the waste synthetic rubber 23 and the elastic additive 26.

The waste PVB film 22 is pretreated to a length of about 10 mm or less. When the length of the waste PVB film 22 is about 10 mm or more, the dispersibility of the waste PVB film 22 drops sharply, which makes it difficult to produce the asphalt binder 20. The length of the waste PVB film 22 may be a knife-type pulverizer or the like, and the length can be verified by using general-purpose equipment such as a mesh.

The residual glass in the waste PVB film 22 is pretreated to be about 0.3 wt% or less. If the residual glass in the waste PVB film 22 exceeds about 0.3 wt%, the storage stability due to the residual glass is impaired. When the asphalt binder 20 is injected through the nozzle, the remaining glass in the waste PVB film 22 blocks the nozzle, thereby deteriorating the productivity. The waste PVB film 22 is washed using a cleaning device such as a friction rotary device to adjust the residual glass in the waste PVB film 22 to 0.3 wt% or less. In this embodiment, the residual glass in the waste PVB film 22 is pretreated to be about 0.18 wt% or less.

Further, in the present embodiment, the residual amount of acetate in the waste PVB film 22 is limited to about 17 wt% or less. The PVB film is a material synthesized through the acetalization of PVA. In the PVB film, remaining PVA and acetate remain in addition to PVB. In the case of the waste PVB film 22, the amount of acetate remaining in the PVB is greatly reduced due to aging due to exposure to light for a long time when used in a vehicle. When the residual amount of acetate is high, the performance of the asphalt binder 20 is deteriorated.

The waste synthetic rubber 23 is mixed at about 5 to 20 wt%. The waste synthetic rubber 23 is an ethylene propylene diene monomer (EPDM) separated from an interior material of a vehicle. The interior material includes a molding used for noise prevention, waterproofing, shock prevention, and the like in a car door or a trunk. However, the present invention is not limited to this, and the waste synthetic rubber 23 may be any synthetic rubber used in a vehicle. The waste synthetic rubber 23 is used by being pretreated in powder form. The waste synthetic rubber 23 is pretreated in powder form having a particle size of 1 mm or less. The waste synthetic rubber 23 is melted in a binder heated to a high temperature to increase the resistance at high temperatures and increase the elastic restoring force.

The waste synthetic rubber 23 is mixed with about 5 to 20 wt% in the asphalt binder 20. The waste synthetic rubber 23 functions to impart elasticity so that the asphalt sealant 1 can be smoothly injected into a narrow crack of the asphalt road.

The plasticizer (24) is mixed with about 0.1 to 2 wt%. The plasticizer (24) is a plant extracting and retaining series, which imparts plasticity to the material to improve melting and dispersion, and enables the asphalt binder (20)

About 0.1 to 3 wt% of the dispersant (25) is mixed. The dispersant 25 disperses the waste PVB film 21 and the waste synthetic rubber 22 that are melted in the asphalt binder 20 as a metal salt fatty acid series to homogenize the quality and improve the storage stability . In addition, it plays a role of improving the storage stability and serves to homogenize the quality of the material during storage.

About 3 to 5 wt% of the elastic additive 26 is mixed. The elastic additive 26 is a copolymer of styrene and butadiene as a block copolymer. As a thermoplastic material, it serves to enhance the elasticity and stretchability of the asphalt binder 20.

The elastic additive (26) is mixed in the asphalt binder (20) at about 3 to 5 wt%. When the amount is less than 3 wt%, the low-temperature embrittlement is strong, which is less than necessary properties in winter, and when it exceeds 5 wt%, the viscosity is high and processing and construction are difficult. The use amount of the elastic additive 26 is higher than that of the conventional asphalt composition when used in the asphalt sealant 1.

The process oil 27 softens the viscosity of the asphalt sealant 1 which is increased due to the elastic additive 26 and the filler fine powder 10 as refined petroleum oil so as to smoothly inject cracks during construction, It acts to relieve destruction.

Since the asphalt sealant 1 constructed as described above is injected into the cracks of the asphalt road, it is possible to minimize the injection of talc and the brittle fracture of the winter season by using the filled fine powder 10 instead of the aggregate, And the specific gravity of the waste synthetic rubber 23 is relatively high.

A method for manufacturing the asphalt sealant 1 having the above-described structure will now be described.

FIG. 2 is a view showing a method of manufacturing the asphalt sealant shown in FIG. 1. FIG.

Referring to FIG. 2, the waste windshield of the vehicle is recovered at a workshop, a junkyard or the like, and the waste PVB film 22 and the waste glass are separated from the waste windshield. Further, the waste synthetic rubber 23 is separated from the interior material of the vehicle. The method of separating the waste PVB film (22) and the waste glass from the waste windshield glass can use an already-commercialized equipment or technique. (S1)

After the waste PVB film 22 and the waste synthetic rubber are separated from each other, they are pre-treated (S2)

Once separated into the waste PVB film 22 and the waste glass, the waste PVB film 22 contains about 2 to 4 wt% of residual glass. Therefore, the PVB film 22 is further pretreated by performing an additional washing process or the like so that the residual glass in the PVB film 22 is about 0.3 wt% or less. If the amount of the residual glass in the waste PVB film 22 exceeds about 0.3 wt%, the storage stability due to the residual glass is impaired, and the remaining glass blocks the nozzles, thereby deteriorating the productivity. In this embodiment, the remaining glass in the waste PVB film 22 is pretreated to about 0.18 wt% or less by way of example.

Also, the length of the waste PVB film 22 is pretreated to be about 10 mm or less. When the length of the waste PVB film 22 is about 10 mm or more, the dispersibility of the waste PVB film 22 drops sharply and it is difficult to produce the asphalt binder.

Also, the residual amount of acetate in the waste PVB film 22 is limited to about 17 wt% or less. If the residual amount of acetate is high, the performance of the asphalt binder 20 is lowered. Therefore, the weight ratio of the waste PVB film 22 is adjusted or a separate additive is required.

The waste synthetic rubber 23 is ground to a particle size of 1 mm or less and is pretreated in powder form.

On the other hand, the asphalt 21 is firstly heated at about 80 to 140 ° C to remove moisture, and then is heated at about 120 to 150 ° C for melting to melt.

The pretreated waste PVB film 22, the waste synthetic rubber 23, the plasticizer 24, the dispersant 25, the elastic additive 26, and the process oil 27 (27) are added to the molten asphalt 21. ) Are mixed with stirring to prepare the asphalt binder (20). At this time, it is preferable that 65 to 80 wt% of the asphalt 21, 1 to 5 wt% of the waste PVB film 22, 5 to 20 wt% of the waste synthetic rubber 23, 0.1 to 2 wt% of the plasticizer 24, 3 to 5 wt% of the elastic additive 26 and 1 to 5 wt% of the process oil 27 are stirred and mixed.

The asphalt binder (20) thus prepared is mixed with the filler fine powder (10) to prepare the asphalt sealant (1). 5 to 10 wt% of the filler fine powder 10 and 90 to 95 wt% of the asphalt binder 20 are mixed. By using the talc obtained by crushing the talc with the filler fine powder 10, the talc particles are very small, so that the filler can be easily injected into the cracks of the asphalt road and the filling can be smoothly performed.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Asphalt sealant 10: Filler fine powder
20: Asphalt binder 21: Asphalt
22: waste PVB film 23: waste synthetic rubber
24: Plasticizer 25: Dispersant
26: Elastic additive 27: Process oil

Claims (13)

Asphalt cement repair Asphalt cement repair cracks in cracks during maintenance,
Filler fine powder and asphalt binder,
The filled fine powder is a talc obtained by pulverizing talc,
Wherein the asphalt binder comprises at least one selected from the group consisting of 65 to 80 wt% asphalt, 1 to 5 wt% waste PVB film, 5 to 20 wt% waste synthetic rubber, 0.1 to 2 wt% plasticizer, 0.1 to 3 wt% dispersant, 3 to 5 wt% 5% by weight,
The waste PVB film is prepared by acetalization of PVA by separating asphalt from the waste windshield of the vehicle, and the remaining amount of acetate in the waste PVB film is 17 wt% or less,
The waste synthetic rubber is an ethylene propylene diene monomer (EPDM) pretreated in powder form having a particle size of 1 mm or less, and is pretreated by separating from the interior material of a vehicle. The method according to claim 1,
Wherein the filler fine powder is mixed with 5 to 10 wt% and the asphalt binder is mixed with 90 to 95 wt%. delete delete The method according to claim 1,
The waste PVB film is pretreated to a length of less than 10 mm, and the waste part of the vehicle is used as an asphalt sealant. The method according to claim 1,
The asphalt sealant according to claim 1, wherein the waste PVB film is pretreated so that the residual glass is 0.3 wt% or less. delete delete delete delete delete delete delete
KR1020150173788A 2015-12-08 2015-12-08 Asphalt sealant using waste part of vehicle KR101776234B1 (en)

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KR101776234B1 true KR101776234B1 (en) 2017-09-07

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360848A (en) 1992-08-06 1994-11-01 Hoechst Aktiengesellschaft Ag Modified bitumens, processes for their preparation, their use and solubilizing agents for plasticized polyvinyl butyral in bitumen
JP2006214221A (en) 2005-02-07 2006-08-17 Yamaguchi Univ Road pavement material having water-retentivity

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360848A (en) 1992-08-06 1994-11-01 Hoechst Aktiengesellschaft Ag Modified bitumens, processes for their preparation, their use and solubilizing agents for plasticized polyvinyl butyral in bitumen
JP2006214221A (en) 2005-02-07 2006-08-17 Yamaguchi Univ Road pavement material having water-retentivity

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