KR101281822B1 - Modified asphalt composition and a method for preparing same - Google Patents

Modified asphalt composition and a method for preparing same Download PDF

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KR101281822B1
KR101281822B1 KR1020100034413A KR20100034413A KR101281822B1 KR 101281822 B1 KR101281822 B1 KR 101281822B1 KR 1020100034413 A KR1020100034413 A KR 1020100034413A KR 20100034413 A KR20100034413 A KR 20100034413A KR 101281822 B1 KR101281822 B1 KR 101281822B1
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weight
parts
modified asphalt
asphalt composition
sbs
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KR20110114989A (en
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이학성
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울산대학교 산학협력단
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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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—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 aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C08L25/10—Copolymers of styrene with conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/04—Alginic acid; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • 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
    • C08L2207/24—Recycled plastic recycling of old tyres and caoutchouc and addition of caoutchouc particles
    • 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
    • C08L2555/20—Mixtures of bitumen and aggregate defined by their production temperatures, e.g. production of asphalt for road or pavement applications

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  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Structures (AREA)

Abstract

본 발명은 개질 아스팔트 조성물 및 그 제조방법에 관한 것으로, 스트레이트 아스팔트, 폐타이어 분말, SBS, 메셀로스 및 알긴산나트륨을 포함하여 이루어지며, 아스팔트가열단계, 폐타이어혼합단계, 첨가제혼합단계, SBS혼합단계 및 숙성단계를 거쳐 제조된다.
전술한 개질 아스팔트 조성물 및 제조방법은 탄성, 내구성, 내후성, 내열성 및 내한성이 우수한 아스팔트 조성물을 제공하며, 도로에 적용할 경우 겨울철에 제설을 위해 뿌려지는 염화칼슘과 개질 아스팔트 조성물에 함유된 알긴산나트륨이 반응하여 개질 아스팔트 조성물의 기계적 물성을 향상시키는 알긴산칼슘이 생성되는 효과를 나타낸다.The present invention relates to a modified asphalt composition and a method for producing the same, comprising straight asphalt, waste tire powder, SBS, mecellose and sodium alginate, asphalt heating step, waste tire mixing step, additive mixing step, SBS mixing step And it is prepared through a aging step.
The above-described modified asphalt composition and production method provides an asphalt composition having excellent elasticity, durability, weather resistance, heat resistance and cold resistance, and when applied to roads, calcium chloride sprayed for snow removal in winter and sodium alginate contained in the modified asphalt composition react. This results in the effect of producing calcium alginate to improve the mechanical properties of the modified asphalt composition.

Description

개질 아스팔트 조성물 및 그 제조방법 {MODIFIED ASPHALT COMPOSITION AND A METHOD FOR PREPARING SAME}Modified asphalt composition and its manufacturing method {MODIFIED ASPHALT COMPOSITION AND A METHOD FOR PREPARING SAME}

본 발명은 개질 아스팔트 조성물 및 그 제조방법에 관한 것으로, 더욱 상세하게는, 스트레이트 아스팔트, 폐타이어 분말, SBS(Styrene Butadiene Styrene copolymer), 메셀로스 및 알긴산나트륨을 포함하여 이루어지며, 아스팔트가열단계, 폐타이어혼합단계, 첨가제혼합단계, SBS혼합단계 및 숙성단계를 거쳐 제조된다.
The present invention relates to a modified asphalt composition and a method for manufacturing the same, more specifically, straight asphalt, waste tire powder, SBS (Styrene Butadiene Styrene copolymer), including mecellose and sodium alginate, asphalt heating step, waste It is manufactured through a tire mixing step, an additive mixing step, an SBS mixing step and a aging step.

본 발명은 개질 아스팔트 조성물 및 그 제조방법에 관한 것으로, 더욱 상세하게는, 스트레이트 아스팔트, 폐타이어 분말, SBS, 메셀로스 및 알긴산나트륨을 포함하여 이루어지며, 아스팔트가열단계, 폐타이어혼합단계, 첨가제혼합단계, SBS혼합단계 및 숙성단계를 거쳐 제조된다.The present invention relates to a modified asphalt composition and a method for producing the same, and more particularly, comprising straight asphalt, waste tire powder, SBS, mecellose and sodium alginate, asphalt heating step, waste tire mixing step, additive mixing It is prepared through the step, SBS mixing step and aging step.

국내의 도로는 83% 정도가 아스팔트로 포장되며, 나머지는 콘크리트 등으로 포장되는데, 고속도로와 일반국도로 구분했을 경우, 고속도로는 40%, 일반국도는 97% 정도가 아스팔트로 포장된다.About 83% of domestic roads are paved with asphalt, and the rest are paved with concrete, etc. When divided into highways and general roads, 40% of highways and 97% of general roads are paved with asphalt.

종래에 아스팔트 포장 도로는 90년대 이후 폭발적으로 증가된 차량통행량으로 인한 피로도를 견디지 못해 균열 등이 발생하는 문제점이 있었다.Conventionally, the asphalt pavement has a problem in that cracks do not occur due to the fatigue caused by the explosive increase in vehicle traffic since the 90s.

전술한 것처럼 아스팔트 도로의 균열 등을 보수하는데 해마다 약 3000억 원의 보수비용이 소모되고 있는데, 이러한 문제점을 해결하기 위해 아스팔트의 물성을 개선한 개질 아스팔트가 사용되고 있다.As described above, repair costs of about 300 billion won are consumed each year to repair cracks in asphalt roads, and to solve these problems, modified asphalt having improved properties of asphalt is used.

개질 아스팔트의 사용량은 2010년 현재 전체 아스팔트 중 10% 정도 수준에 머물러 있지만, 2015년에는 15% 정도로 사용비율이 향상될 것으로 예측되고 있으며, 사용비율은 계속 늘어날 전망이다.As of 2010, the use of modified asphalt remains at about 10% of the total asphalt, but the use rate is expected to increase by 15% in 2015, and the usage rate is expected to increase.

그러나, 종래에 사용되고 있는 개질 아스팔트는 탄성, 내구성, 내후성, 내열성 및 내한성 등의 물성이 차량통행량의 증가로 인해 발생하는 피로도의 증가를 극복할 만한 수준에 이르지 못하는 문제점이 있었다.
However, the modified asphalt used in the related art has a problem in that physical properties such as elasticity, durability, weather resistance, heat resistance, and cold resistance do not reach a level that can overcome the increase in fatigue caused by an increase in vehicle traffic volume.

본 발명의 목적은 탄성, 내구성, 내후성, 내열성 및 내한성 등의 물성이 향상되어 차량통행량의 증가로 인해 발생하는 피로도를 극복할 수 있고, 도로의 수명을 연장시킬 수 있는 개질 아스팔트 조성물 및 그 제조방법을 제공하는 것이다.
An object of the present invention is to improve the physical properties such as elasticity, durability, weather resistance, heat resistance and cold resistance to overcome the fatigue caused by the increase in traffic volume, and to improve the life of the road modified asphalt composition and its manufacturing method To provide.

본 발명의 목적은, 스트레이트 아스팔트, 폐타이어 분말, SBS, 메셀로스 및 알긴산나트륨을 포함하여 이루어지는 것을 특징으로 하는 개질 아스팔트 조성물을 제공함에 의해 달성된다.The object of the present invention is achieved by providing a modified asphalt composition comprising straight asphalt, waste tire powder, SBS, mecellose and sodium alginate.

본 발명의 바람직한 특징에 따르면, 상기 개질 아스팔트 조성물은 스트레이트 아스팔트 80 내지 90 중량부, 폐타이어 분말 2 내지 20 중량부, SBS 1 내지 10 중량부, 메셀로스 0.1 내지 5 중량부 및 알긴산나트륨 0.1 내지 5 중량부를 포함하여 이루어지는 것으로 한다.According to a preferred feature of the invention, the modified asphalt composition is 80 to 90 parts by weight of straight asphalt, 2 to 20 parts by weight of waste tire powder, 1 to 10 parts by weight of SBS, 0.1 to 5 parts by weight of mecellose and 0.1 to 5 sodium alginate It shall comprise a weight part.

본 발명의 더 바람직한 특징에 따르면, 상기 폐타이어 분말은 입자크기가 80 내지 200 메시인 것으로 한다.
According to a more preferred feature of the invention, the waste tire powder is to have a particle size of 80 to 200 mesh.

또한, 본 발명의 목적은 스트레이트 아스팔트를 가열하는 아스팔트가열단계, 상기 아스팔트가열단계를 거친 스트레이트 아스팔트에 폐타이어 분말을 첨가하는 폐타이어혼합단계, 상기 폐타이어혼합단계를 거친 혼합물에 메셀로스 및 알긴산을 첨가하는 첨가제혼합단계, 상기 첨가제혼합단계를 거친 혼합물에 SBS를 혼합하는 SBS혼합단계 및 상기 SBS혼합단계를 거친 혼합물을 숙성시키는 숙성단계를 포함하여 이루어지는 것을 특징으로 하는 개질 아스팔트 조성물의 제조방법을 제공함에 의해서도 달성될 수 있다.In addition, an object of the present invention is an asphalt heating step of heating the straight asphalt, waste tire mixing step of adding waste tire powder to the straight asphalt through the asphalt heating step, the mecellose and alginic acid in the mixture through the waste tire mixing step It provides a method for producing a modified asphalt composition comprising the step of adding an additive mixing step, the SBS mixing step of mixing the SBS to the mixture passed through the additive mixing step and the aging step of maturing the mixture passed through the SBS mixing step. It can also be achieved by

본 발명의 바람직한 특징에 따르면, 상기 아스팔트가열단계는 스트레이트 아스팔트 80 내지 90 중량부를 170 내지 190℃의 온도로 가열하여 이루어지는 것으로 한다.According to a preferred feature of the invention, the asphalt heating step is to be made by heating 80 to 90 parts by weight of the straight asphalt to a temperature of 170 to 190 ℃.

본 발명의 더 바람직한 특징에 따르면, 상기 폐타이어 혼합단계는 입자크기가 80 내지 200 메시인 폐타이어분말 2 내지 20 중량부가 첨가되는 것으로 한다.According to a more preferred feature of the invention, the waste tire mixing step is to add 2 to 20 parts by weight of the waste tire powder having a particle size of 80 to 200 mesh.

본 발명의 더욱 바람직한 특징에 따르면, 상기 첨가제혼합단계는 상기 혼합물에 메셀로스 0.1 내지 5 중량부 및 알긴산 0.1 내지 5 중량부가 첨가되는 것으로 한다.According to a more preferred feature of the present invention, the additive mixing step is that 0.1 to 5 parts by weight of mecellose and 0.1 to 5 parts by weight of alginic acid are added to the mixture.

본 발명의 더욱 더 바람직한 특징에 따르면, 상기 SBS혼합단계는 SBS 1 내지 10 중량부가 투입되는 것으로 한다.
According to a further preferred feature of the invention, the SBS mixing step is to be added 1 to 10 parts by weight of SBS.

본 발명에 따른 개질 아스팔트 조성물 및 그 제조방법은 탄성, 내구성, 내후성, 내열성 및 내한성 등의 물성이 향상되어 차량통행량의 증가로 인해 발생하는 피로도를 극복할 수 있고, 도로의 수명을 연장하는 탁월한 효과를 나타낸다.Modified asphalt composition according to the present invention and the manufacturing method thereof can improve the physical properties such as elasticity, durability, weather resistance, heat resistance and cold resistance to overcome the fatigue caused by the increase in the traffic volume, the excellent effect of extending the life of the road Indicates.

또한, 개질 아스팔트 조성물에 함유된 알긴산나트륨이 겨울철에 제설을 위해 뿌려지는 염화칼슘과 반응하여 알긴산칼슘을 생성하면, 개질 아스팔트 조성물의 기계적 물성이 향상되는 탁월한 효과를 나타낸다.In addition, when sodium alginate contained in the modified asphalt composition reacts with calcium chloride to be sprayed for snow removal in winter, calcium alginate exhibits an excellent effect of improving the mechanical properties of the modified asphalt composition.

또한, 폐타이어를 물리적으로 재활용하여 폐기물 처리비용을 절감하는 탁월한 효과를 나타낸다.
In addition, by physically recycling the waste tires have an excellent effect of reducing the waste disposal cost.

도 1은 본 발명에 따른 개질 아스팔트 조성물의 제조방법을 나타낸 순서도이다.1 is a flow chart showing a method for producing a modified asphalt composition according to the present invention.

이하에는, 본 발명의 바람직한 실시 예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.
Hereinafter, preferred embodiments of the present invention and physical properties of the respective components will be described in detail with reference to the accompanying drawings. However, the present invention is not limited thereto, And this does not mean that the technical idea and scope of the present invention are limited.

본 발명에 따른 개질 아스팔트 조성물은 스트레이트 아스팔트, 폐타이어 분말, SBS, 메셀로스 및 알긴산나트륨을 포함하여 이루어지며, 스트레이트 아스팔트 80 내지 90 중량부, 폐타이어 분말 2 내지 20 중량부, SBS 1 내지 10 중량부, 메셀로스 0.1 내지 5 중량부 및 알긴산 나트륨 0.1 내지 5 중량부를 포함하여 이루어지는 것이 더욱 바람직하다.
The modified asphalt composition according to the present invention comprises straight asphalt, waste tire powder, SBS, mecellose and sodium alginate, straight asphalt 80 to 90 parts by weight, waste tire powder 2 to 20 parts by weight, SBS 1 to 10 weight More preferably, it comprises 0.1 to 5 parts by weight of mecellose and 0.1 to 5 parts by weight of sodium alginate.

전술한 스트레이트 아스팔트는 80 내지 90 중량부가 첨가되며, 전술한 폐타이어 분말과 혼합되어 개질 아스팔트 조성물의 소성변형이나 균열을 개선하는 역할을 하는데, 이러한 스트레이트 아스팔트는 고온에서 점도가 낮은 특성으로 인해 혼합과정이나 도포과정에서 편의성을 제공한다.
The above-mentioned straight asphalt is added to 80 to 90 parts by weight, and mixed with the above-mentioned waste tire powder serves to improve the plastic deformation or cracking of the modified asphalt composition, the straight asphalt is a mixing process due to the low viscosity properties at high temperatures However, it provides convenience in the application process.

전술한 폐타이어 분말은 2 내지 20 중량부가 함유되며, 스트레이트 아스팔트와 혼합되는 과정에서 분리나 침전현상이 발생하지 않도록 80 내지 200 메시(Mesh)의 입자크기를 갖는다.The waste tire powder described above contains 2 to 20 parts by weight, and has a particle size of 80 to 200 mesh to prevent separation or sedimentation during mixing with straight asphalt.

전술한 입자크기를 갖는 폐타이어 분말은 건식법으로 혼합할 필요없이, 용융된 스트레이트 아스팔트에 직접 첨가하는 습식법의 적용을 가능하게 하여, 개질 아스팔트 조성물의 제조시간을 단축시키는 역할을 한다.The waste tire powder having the above-described particle size enables the application of the wet method added directly to the molten straight asphalt, without the need for mixing by dry method, and serves to shorten the production time of the modified asphalt composition.

또한, 전술한 폐타이어 분말은 부타디엔 성분이 함유되어 개질 아스팔트 조성물의 탄성 및 내 유동성을 향상시키고, 카본블랙이 함유되어 개질 아스팔트 조성물의 기계적 물성을 향상시키며, 산화안정제 성분이 함유되어 개질 아스팔트가 고온에서 장시간 노출됐을 때, 색상의 변화나 노화를 억제하는 역할을 한다.
In addition, the above-mentioned waste tire powder contains butadiene component to improve the elasticity and flow resistance of the modified asphalt composition, carbon black is contained to improve the mechanical properties of the modified asphalt composition, and the oxidizing stabilizer component is contained so that the modified asphalt is hot Prolonged exposure to the body can help prevent color changes and aging.

전술한 SBS는 1 내지 10 중량부가 함유되며, SBS에 포함되어 있는 부타디엔 성분으로 인해 아스팔트 조성물의 점탄성, 유연성 및 탄성회복성 등을 향상시키는 역할을 한다.
The SBS described above contains 1 to 10 parts by weight, and serves to improve the viscoelasticity, flexibility, elastic recovery, and the like of the asphalt composition due to the butadiene component included in the SBS.

전술한 메셀로스는 0.1 내지 5 중량부가 첨가되며, 전술한 스트레이트 아스팔트와 전술한 폐타이어 분말의 접착력을 높이는 역할을 하는데, 이외에도 함수성이 우수하여, 건기에 개질 아스팔트 조성물이 낮은 함수율로 인해 물성이 저하되는 것을 차단하는 역할을 한다.
The above-mentioned mecellose is added in an amount of 0.1 to 5 parts by weight, and serves to increase the adhesion between the above-described straight asphalt and the above-mentioned waste tire powder, and in addition to excellent water functionality, the modified asphalt composition in the dry season has low physical properties It serves to prevent degradation.

전술한 알긴산나트륨은 0.1 내지 5 중량부가 첨가되며, 전술한 스트레이트 아스팔트와 전술한 폐타이어 분말의 접착력을 높이는 역할을 하는데. 이외에도 함수성이 우수하여, 건기에 개질 아스팔트 조성물이 낮은 함수율로 인해 물성이 저하되는 것을 차단하는 역할을 한다.The above-mentioned sodium alginate is added 0.1 to 5 parts by weight, and serves to increase the adhesion between the aforementioned straight asphalt and the waste tire powder. In addition to the excellent moisture, the modified asphalt composition in the dry season serves to block the degradation of the physical properties due to low water content.

또한, 전술한 알긴산나트륨은 겨울철에 제설을 위해 살포되는 염화칼슘과 반응하면 알긴산칼슘을 생성하게 되는데, 알긴산칼슘은 경화성이 우수하여, 개질 아스팔트 조성물의 기계적 물성을 더욱 향상시키게 된다.
In addition, the above-mentioned sodium alginate reacts with calcium chloride sprayed for snow removal in winter to produce calcium alginate. The calcium alginate has excellent curability, further improving the mechanical properties of the modified asphalt composition.

또한, 본 발명에 따른 개질 아스팔트 조성물의 제조방법은 스트레이트 아스팔트를 가열하는 아스팔트가열단계(S101), 전술한 아스팔트가열단계(S101)를 거친 스트레이트 아스팔트에 폐타이어 분말을 첨가하는 폐타이어혼합단계(S103), 전술한 폐타이어혼합단계(S103)를 거친 혼합물에 메셀로스 및 알긴산을 첨가하는 첨가제혼합단계(S105), 전술한 첨가제혼합단계(S105)를 거친 혼합물에 SBS를 혼합하는 SBS혼합단계(S107) 및 전술한 SBS혼합단계(S107)를 거친 혼합물을 숙성시키는 숙성단계(S109)를 포함하여 이루어진다.
In addition, the method for producing a modified asphalt composition according to the present invention is an asphalt heating step (S101) for heating straight asphalt, waste tire mixing step (S103) for adding waste tire powder to the straight asphalt through the above-described asphalt heating step (S101). ), An additive mixing step (S105) of adding mecellose and alginic acid to the mixture through the above-mentioned waste tire mixing step (S103), and an SBS mixing step (S107) of mixing the SBS with the mixture through the above-described additive mixing step (S105). ) And a aging step (S109) for aging the mixture passed through the above-described SBS mixing step (S107).

전술한 아스팔트가열단계(S101)는 스트레이트 아스팔트를 가열하는 단계로, 80 내지 90 중량부의 스트레이트 아스팔트를 170 내지 190℃의 온도로 가열하는데, 이러한 온도로 가열된 스트레이트 아스팔트는 전술한 폐타이어 분말과 용이하게 혼합될 정도의 낮은 점도를 갖게 된다.
The above-described asphalt heating step (S101) is a step of heating the straight asphalt, and heats 80 to 90 parts by weight of the straight asphalt to a temperature of 170 to 190 ℃, the straight asphalt heated to this temperature is easy to use the above-mentioned waste tire powder It has a low viscosity enough to be mixed.

전술한 폐타이어혼합단계(S103)는 전술한 아스팔트가열단계(S101)를 거친 스트레이트 아스팔트에 폐타이어 분말을 첨가하는 단계로, 입자크기가 80 내지 200 메시인 폐타이어 분말 2 내지 20 중량부가 첨가하여 15 내지 25분 동안 교반하는 단계다.The above-mentioned waste tire mixing step (S103) is a step of adding the waste tire powder to the straight asphalt which has passed the above-described asphalt heating step (S101), by adding 2 to 20 parts by weight of the waste tire powder having a particle size of 80 to 200 mesh. Stirring for 15 to 25 minutes.

전술한 첨가제혼합단계(S105)는 전술한 폐타이어혼합단계(S103)를 거친 혼합물에 메셀로스 및 알긴산을 첨가하는 단계로, 메셀로스 0.1 내지 5 중량부 및 알긴산 0.1 내지 5 중량부가 첨가되는데, 메셀로스 및 알긴산을 첨가하고, 15 내지 25분 동안 교반하는 단계다.
The above-described additive mixing step (S105) is a step of adding mecellose and alginic acid to the mixture passed through the above-described waste tire mixing step (S103), and 0.1 to 5 parts by weight of mecellose and 0.1 to 5 parts by weight of alginic acid are added. Ross and alginic acid are added and stirred for 15-25 minutes.

전술한 SBS혼합단계(S107)는 전술한 첨가제혼합단계(S105)를 거친 혼합물에 SBS를 혼합하는 단계로, SBS 1 내지 10 중량부를 혼합하고, 15 내지 25분 동안 교반하는 단계다.
The above-described SBS mixing step (S107) is a step of mixing the SBS to the mixture passed through the above-described additive mixing step (S105), mixing 1 to 10 parts by weight of SBS, and stirring for 15 to 25 minutes.

전술한 숙성단계(S109)는 전술한 SBS혼합단계(S107)를 거친 혼합물을 숙성시키는 단계로, SBS가 혼합된 혼합물을 상온에서 2 내지 3시간 동안 노출하여 숙성시키는 단계다.
The above-described aging step (S109) is a step of aging the mixture passed through the above-described SBS mixing step (S107), is a step of aging by exposing the mixture mixed SBS for 2 to 3 hours at room temperature.

이하에는, 본 발명에 따른 개질 아스팔트 조성물의 제조방법으로 제조된 개질 아스팔트 조성물의 물성을 실시예를 들어 설명한다.
Hereinafter, the physical properties of the modified asphalt composition prepared by the method for producing the modified asphalt composition according to the present invention will be described with reference to Examples.

<실시예 1>&Lt; Example 1 >

스트레이트 아스팔트 80 중량부를 175℃로 가열하고, 입자크기가 150 메시인 폐타이어 분말 10 중량부를 투입하여 20분 동안 교반하고, 메셀로스 1 중량부 및 알긴산나트륨 2 중량부를 투입하여 20분 동안 교반하고, SBS 4 중량부를 투입하여 20분 동안 교반한 후에 상온에서 2시간 동안 숙성시켜 개질 아스팔트 조성물을 제조하였다.
80 parts by weight of straight asphalt was heated to 175 ° C, 10 parts by weight of waste tire powder having a particle size of 150 mesh was added and stirred for 20 minutes, 1 part by weight of mecellose and 2 parts by weight of sodium alginate were added, and stirred for 20 minutes, 4 parts by weight of SBS was added thereto, stirred for 20 minutes, and aged at room temperature for 2 hours to prepare a modified asphalt composition.

<실시예 2><Example 2>

스트레이트 아스팔트 84 중량부를 175℃로 가열하고, 입자크기가 150 메시인 폐타이어 분말 10 중량부를 투입하여 20분 동안 교반하고, 메셀로스 1 중량부 및 알긴산나트륨 2 중량부를 투입하여 20분 동안 교반하고, SBS 3 중량부를 투입하여 20분 동안 교반한 후에 상온에서 2시간 동안 숙성시켜 개질 아스팔트 조성물을 제조하였다.
84 parts by weight of straight asphalt was heated to 175 ° C, 10 parts by weight of waste tire powder having a particle size of 150 mesh was added and stirred for 20 minutes, 1 part by weight of mecellose and 2 parts by weight of sodium alginate were added and stirred for 20 minutes, 3 parts by weight of SBS was added thereto, stirred for 20 minutes, and aged at room temperature for 2 hours to prepare a modified asphalt composition.

<실시예 3><Example 3>

스트레이트 아스팔트 88 중량부를 175℃로 가열하고, 입자크기가 150 메시인 폐타이어 분말 8 중량부를 투입하여 20분 동안 교반하고, 메셀로스 1 중량부 및 알긴산나트륨 1 중량부를 투입하여 20분 동안 교반하고, SBS 2 중량부를 투입하여 20분 동안 교반한 후에 상온에서 2시간 동안 숙성시켜 개질 아스팔트 조성물을 제조하였다.
88 parts by weight of straight asphalt was heated to 175 ° C, 8 parts by weight of waste tire powder having a particle size of 150 mesh was added and stirred for 20 minutes, 1 part by weight of mecellose and 1 part by weight of sodium alginate were added, and stirred for 20 minutes, 2 parts by weight of SBS was added thereto, stirred for 20 minutes, and aged at room temperature for 2 hours to prepare a modified asphalt composition.

<실시예 4><Example 4>

스트레이트 아스팔트 88 중량부를 175℃로 가열하고, 입자크기가 150 메시인 폐타이어 분말 6 중량부를 투입하여 20분 동안 교반하고, 메셀로스 2 중량부 및 알긴산나트륨 1 중량부를 투입하여 20분 동안 교반하고, SBS 3 중량부를 투입하여 20분 동안 교반한 후에 상온에서 2시간 동안 숙성시켜 개질 아스팔트 조성물을 제조하였다.
88 parts by weight of straight asphalt was heated to 175 ° C, 6 parts by weight of waste tire powder having a particle size of 150 mesh was added and stirred for 20 minutes, 2 parts by weight of mecellose and 1 part by weight of sodium alginate were added and stirred for 20 minutes, 3 parts by weight of SBS was added thereto, stirred for 20 minutes, and aged at room temperature for 2 hours to prepare a modified asphalt composition.

<실시예 5><Example 5>

스트레이트 아스팔트 90 중량부를 175℃로 가열하고, 입자크기가 150 메시인 폐타이어 분말 7 중량부를 투입하여 20분 동안 교반하고, 메셀로스 0.5 중량부 및 알긴산나트륨 0.5 중량부를 투입하여 20분 동안 교반하고, SBS 2 중량부를 투입하여 20분 동안 교반한 후에 상온에서 2시간 동안 숙성시켜 개질 아스팔트 조성물을 제조하였다.
90 parts by weight of straight asphalt was heated to 175 ° C, 7 parts by weight of waste tire powder having a particle size of 150 mesh was added and stirred for 20 minutes, 0.5 parts by weight of mecellose and 0.5 parts by weight of sodium alginate were added, and stirred for 20 minutes, 2 parts by weight of SBS was added thereto, stirred for 20 minutes, and aged at room temperature for 2 hours to prepare a modified asphalt composition.

실시예 1 내지 5를 통해 제조된 개질 아스팔트 조성물의 물성을 측정하여 아래 표 1 및 표 2에 나타내었다.
The physical properties of the modified asphalt compositions prepared through Examples 1 to 5 were measured and shown in Tables 1 and 2 below.

<표 1>TABLE 1

Figure 112010023820213-pat00001

Figure 112010023820213-pat00001

<표 2><Table 2>

Figure 112010023820213-pat00002
Figure 112010023820213-pat00002

위에 표 1 및 표 2에 나타낸 것처럼 본 발명에 따른 개질 아스팔트 조성물의 제조방법으로 제조된 개질 아스팔트 조성물은 탄성, 내구성, 내후성, 내열성 및 내한성이 우수한 것을 알 수 있다.
As shown in Table 1 and Table 2 above, it can be seen that the modified asphalt composition prepared by the method of preparing the modified asphalt composition according to the present invention has excellent elasticity, durability, weather resistance, heat resistance, and cold resistance.

S101 ; 아스팔트가열단계
S103 ; 폐타이어혼합단계
S105 ; 첨가제혼합단계
S107 ; SBS혼합단계
S109 ; 숙성단계S101; Asphalt heating stage
S103; Waste tire mixing stage
S105; Additive Mixing Step
S107; SBS mixing stage
S109; Ripening step

Claims (8)

스트레이트 아스팔트, 폐타이어 분말, SBS, 메셀로스 및 알긴산나트륨을 포함하여 이루어지는 것을 특징으로 하는 개질 아스팔트 조성물.
A modified asphalt composition comprising straight asphalt, waste tire powder, SBS, mecellose and sodium alginate.
청구항 1에 있어서,
상기 개질 아스팔트 조성물은 스트레이트 아스팔트 80 내지 90 중량부, 폐타이어 분말 2 내지 20 중량부, SBS 1 내지 10 중량부, 메셀로스 0.1 내지 5 중량부 및 알긴산 나트륨 0.1 내지 5 중량부를 포함하여 이루어지는 것을 특징으로 하는 개질 아스팔트 조성물.
The method according to claim 1,
The modified asphalt composition is characterized by comprising 80 to 90 parts by weight of straight asphalt, 2 to 20 parts by weight of waste tire powder, 1 to 10 parts by weight of SBS, 0.1 to 5 parts by weight of mecellose and 0.1 to 5 parts by weight of sodium alginate. Modified asphalt composition.
청구항 2에 있어서,
상기 폐타이어 분말은 입자크기가 80 내지 200 메시인 것을 특징으로 하는 개질 아스팔트 조성물.
The method according to claim 2,
The waste tire powder is modified asphalt composition, characterized in that the particle size of 80 to 200 mesh.
스트레이트 아스팔트를 가열하는 아스팔트가열단계;
상기 아스팔트가열단계를 거친 스트레이트 아스팔트에 폐타이어 분말을 첨가하는 폐타이어혼합단계;
상기 폐타이어혼합단계를 거친 혼합물에 메셀로스 및 알긴산을 첨가하는 첨가제혼합단계;
상기 첨가제혼합단계를 거친 혼합물에 SBS를 혼합하는 SBS혼합단계; 및
상기 SBS혼합단계를 거친 혼합물을 숙성시키는 숙성단계;를 포함하여 이루어지는 것을 특징으로 하는 개질 아스팔트 조성물의 제조방법.
An asphalt heating step of heating straight asphalt;
A waste tire mixing step of adding waste tire powder to the straight asphalt that has undergone the asphalt heating step;
An additive mixing step of adding mecellose and alginic acid to the mixture which has been subjected to the waste tire mixing step;
SBS mixing step of mixing the SBS to the mixture through the additive mixing step; And
Method for producing a modified asphalt composition comprising a; aging step of aging the mixture passed through the SBS mixing step.
청구항 4에 있어서,
상기 아스팔트가열단계는 스트레이트 아스팔트 80 내지 90 중량부를 170 내지 190℃의 온도로 가열하여 이루어지는 것을 특징으로 하는 개질 아스팔트 조성물의 제조방법.
The method of claim 4,
The asphalt heating step is a method for producing a modified asphalt composition, characterized in that the 80 to 90 parts by weight of the straight asphalt made by heating to a temperature of 170 to 190 ℃.
청구항 4에 있어서,
상기 폐타이어혼합단계는 입자크기가 80 내지 200 메시인 폐타이어분말 2 내지 20 중량부가 첨가되는 것을 특징으로 하는 개질 아스팔트 조성물의 제조방법.
The method of claim 4,
The waste tire mixing step is a method for producing a modified asphalt composition, characterized in that 2 to 20 parts by weight of waste tire powder having a particle size of 80 to 200 mesh is added.
청구항 4에 있어서,
상기 첨가제혼합단계는 상기 혼합물에 메셀로스 0.1 내지 5 중량부 및 알긴산 0.1 내지 5 중량부가 첨가되는 것을 특징으로 하는 개질 아스팔트 조성물의 제조방법.
The method of claim 4,
The additive mixing step is a method for producing a modified asphalt composition, characterized in that 0.1 to 5 parts by weight of mecelose and 0.1 to 5 parts by weight of alginic acid are added to the mixture.
청구항 4에 있어서,
상기 SBS혼합단계는 SBS 1 내지 10 중량부가 투입되는 것을 특징으로 하는 개질 아스팔트 조성물의 제조방법.The method of claim 4,
The SBS mixing step is a method for producing a modified asphalt composition, characterized in that 1 to 10 parts by weight of SBS is added.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102659645B1 (en) 2023-09-11 2024-04-23 (주)윤성산업개발 Carbon reduced low temperature asphalt additives composition and asphalt mixture using low temperature asphalt additives

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769288A (en) * 1987-04-15 1988-09-06 The Texas A & M University System Sulfur-coated asphalt pellets
KR100880917B1 (en) 2006-12-28 2009-02-04 울산대학교 산학협력단 Preparation method of activated carbon and activated carbon obtained thereby
KR100903652B1 (en) 2007-10-18 2009-06-18 김종문 Modified asphalt composition used in treated fine waste tire powder with the propylene wax
KR100948884B1 (en) 2009-11-12 2010-03-24 김중석 Recycling asphalt concrete for subbase layer of way using waste asphalt concrete and cinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769288A (en) * 1987-04-15 1988-09-06 The Texas A & M University System Sulfur-coated asphalt pellets
KR100880917B1 (en) 2006-12-28 2009-02-04 울산대학교 산학협력단 Preparation method of activated carbon and activated carbon obtained thereby
KR100903652B1 (en) 2007-10-18 2009-06-18 김종문 Modified asphalt composition used in treated fine waste tire powder with the propylene wax
KR100948884B1 (en) 2009-11-12 2010-03-24 김중석 Recycling asphalt concrete for subbase layer of way using waste asphalt concrete and cinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102659645B1 (en) 2023-09-11 2024-04-23 (주)윤성산업개발 Carbon reduced low temperature asphalt additives composition and asphalt mixture using low temperature asphalt additives

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