KR100351261B1 - Modified asphalt composition - Google Patents
Modified asphalt composition Download PDFInfo
- Publication number
- KR100351261B1 KR100351261B1 KR1019990035508A KR19990035508A KR100351261B1 KR 100351261 B1 KR100351261 B1 KR 100351261B1 KR 1019990035508 A KR1019990035508 A KR 1019990035508A KR 19990035508 A KR19990035508 A KR 19990035508A KR 100351261 B1 KR100351261 B1 KR 100351261B1
- Authority
- KR
- South Korea
- Prior art keywords
- asphalt
- weight
- hydrocarbon resin
- natural hydrocarbon
- modified asphalt
- Prior art date
Links
Classifications
-
- 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
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- 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
- C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
Abstract
본 발명은 개질아스팔트 조성물에 관한 것으로, 더욱 상세하게는 아스팔트의 성분에 천연탄화수소수지(Natural Hydrocarbon Resin)와 분말고무개질재(Crumb Rubber Modifier)를 혼합시켜 도로포장에 사용되는 아스팔트혼합물의 성능을 향상시킨 개질아스팔트 조성물을 제공함에 그 목적이 있다.The present invention relates to a modified asphalt composition, and more particularly, to improve the performance of asphalt mixtures used for road paving by mixing natural hydrocarbon resin and powder rubber modifier with asphalt components. The purpose is to provide a modified asphalt composition.
그리고, 상기한 목적을 달성하기 위하여 본 발명은 도로포장용 아스팔트혼합물에 사용되는 개질아스팔트 조성물에 있어서, 아스팔트 88~94중량%에 천연탄화수소수지 2~4중량%와 분말고무개질재 4~8중량%를 혼합하여 조성되는 것을 특징으로 하는 개질아스팔트 조성물을 제공하게 된다.In order to achieve the above object, the present invention is a modified asphalt composition used in the asphalt mixture for road paving, 88 to 94% by weight of natural hydrocarbon resin 2 to 4% by weight and 4 to 8% by weight of the powdered rubber modifier To provide a modified asphalt composition characterized in that the composition is mixed.
Description
본 발명은 개질아스팔트 조성물에 관한 것으로, 더욱 상세하게는 아스팔트에 천연탄화수소수지(Natural Hydrocarbon Resin)와 분말고무개질재(Crumb Rubber Modifier)를 혼합하여 도로포장에 사용되는 아스팔트혼합물의 성능을 향상시키는 개질아스팔트 조성물에 관한 것이다.The present invention relates to a modified asphalt composition, and more particularly, to modify a natural hydrocarbon resin and a rubber rubber modifier to improve the performance of asphalt mixtures used for road paving. It relates to an asphalt composition.
일반적으로, 도로포장 등에 사용되는 아스팔트혼합물에 골재와 함께 혼합되는 아스팔트는 천연아스팔트와 석유아스팔트로 분류할 수 있으나 극히 제한적으로 사용되는 천연아스팔트보다 널리 사용되는 석유아스팔트를 말하며, 원유를 증류할 때 얻어지는 잔유분을 비롯하여 이와 유사한 성분으로 구성된 물질을 총칭한 것으로, 전체중량의 약 90~95%가 탄화수소로 구성되어 있으며, 그 외 헤테로원자와 금속성 이온으로 구성되어 있다.In general, asphalt mixed with aggregate in asphalt mixtures used for road pavement can be classified into natural asphalt and petroleum asphalt, but refers to petroleum asphalt which is more widely used than natural asphalt, which is extremely limited, and is obtained when distilling crude oil. Generic substances consisting of residues and similar components are collectively composed of about 90-95% of the total weight of hydrocarbons and of heteroatoms and metallic ions.
이때, 아스팔트는 질소, 산소, 황과 같은 헤테로원자가 그 분자구조에서 종종 탄소로 치환되기도 하는데, 이와 같이 분자사이에서 발생되는 활발한 화학작용이 그 독특한 화학적, 물리적 특성의 원인이 된다.At this time, as for asphalt, heteroatoms such as nitrogen, oxygen, and sulfur are often substituted with carbon in its molecular structure, and thus, active chemical reactions generated between molecules cause unique chemical and physical properties.
한편, 도로포장은 골재와 함께 아스팔트나 콘크리트를 혼합하여 포장하게 되는데, 아스팔트포장이 콘크리트포장에 비해 차량의 주행성능이 우수하고 신설포장이나 보수포장이 편리한 반면에, 여름철의 이상고온과 과다한 교통하중과 교통량에 의해 소성변형을 일으킬 수 있는 단점을 갖고 있다.On the other hand, road pavement is mixed with asphalt and concrete together with pavement. As for asphalt pavement, the vehicle's running performance is better than new concrete pavement and new pavement or repair pavement is convenient, It has the disadvantage that plastic deformation can be caused by excessive traffic volume.
통상적으로 가장 널리 사용되는 AP-3아스팔트(침입도 85-100)와 AP-5아스팔트(침입도 60-70)의 경우, 아스팔트의 성분 자체만으로는 골재 등을 포함한 아스팔트혼합물의 내유동성을 줄이기 어렵다.In general, the most widely used AP-3 asphalt (penetration degree 85-100) and AP-5 asphalt (penetration degree 60-70), it is difficult to reduce the flow resistance of the asphalt mixture, including aggregates alone by the asphalt component itself.
이러한 아스팔트포장의 문제점을 개선하기 위하여 아스팔트의 성분에 개질재인 천연탄화수소수지(Natural Hydrocarbon Resin)를 첨가하여 아스팔트포장의 물성중 강성(Stiffness)을 증가시켰다.In order to improve the problems of the asphalt pavement, the natural hydrocarbon resin (Natural Hydrocarbon Resin) is added to the asphalt component to increase the stiffness of the asphalt pavement.
여기서, 천연탄화수소수지(Natural Hydrocarbon Resin)는 길소나이트(Gilsonite HMA)라고도 하는데, 아스팔트 및 아스팔트콘크리트혼합물의 내구성, 내유동성 및 내마모성 증진을 위한 도로포장용 아스팔트 개질재 및 아스팔트콘크리트혼합물의 첨가재(보강재)로 오일이나 수지 등 아스팔트의 고유성분을 화학적으로 변화시키지 않고 아스팔텐(Asphaltene)의 함량을 증가시킴으로써 아스팔트시멘트의 재료특성을 개선시키며, 이러한 원리에 의해 아스팔트 혼합물의 안정성을 증대시키며, 질소의 고농축으로 골재와 아스팔트 사이에 강한 부착력을 부여하면서 물에 강한 저항성을 갖게 한다.Here, the natural hydrocarbon resin (Natural Hydrocarbon Resin) is also known as Gilsonite (Gilsonite HMA), and as an additive (reinforcement) for asphalt pavement and asphalt concrete mixture for improving the durability, flow resistance and wear resistance of asphalt and asphalt concrete mixture. It improves the material properties of asphalt cement by increasing the content of asphaltenes without chemically changing the intrinsic constituents of asphalt such as oils and resins, and improves the stability of asphalt mixtures by this principle, and aggregates with high concentration of nitrogen It has strong resistance to water while giving strong adhesion between and asphalt.
그리고, 천연탄화수소수지(Natural Hydrocarbon Resin)는 분자량이 큰 아스팔텐이 대략 70중량%정도 포함되어 있으며, 나머지는 주로 말텐(Maltene)으로, 기름과 수지성분이고, 3중량%의 질소와 20중량%이상의 이온화된 질소기가 함유되어 있다.In addition, natural hydrocarbon resin (Natural Hydrocarbon Resin) contains about 70% by weight of asphaltenes having a large molecular weight, the remainder is mainly Malten, oil and resin components, 3% by weight of nitrogen and 20% by weight The ionized nitrogen group mentioned above is contained.
또한, 천연탄화수소수지(Natural Hydrocarbon Resin)를 포함한 아스팔트는 박막가열 이전의 침입도가 전체적으로 26~43 사이의 분포를 보여 아스팔트중 가장 단단한 아스팔트의 침입도 45~50등급보다 더 강화된 아스팔트의 거동을 갖는다.그러나, 개질재인 천연탄화수소수지(Natural Hydrocarbon Resin)를 포함한 아스팔트는 강성물성이 증가하여 고온영역에서 아스팔트포장의 소성변형에 효과적으로 대처할 수 있으나, 저온영역에서 강성물성이 더욱 증대되어 균열을 유발시키는 문제도 안고 있다.In addition, asphalt containing natural hydrocarbon resins showed a distribution of 26 ~ 43 in overall penetration before thin film heating, which prevented the behavior of asphalt reinforced with the hardest asphalt penetration of 45 ~ 50 grade. However, asphalt containing a modifier of natural hydrocarbon resin (Natural Hydrocarbon Resin) can increase the stiffness properties to effectively cope with plastic deformation of the asphalt pavement in the high temperature region, but the rigid properties in the low temperature region is further increased to cause cracking There is a problem.
본 발명은 이러한 종래 아스팔트의 단점을 개선시키기 위하여 안출된 것으로, 아스팔트의 성분에 천연탄화수소수지(Natural Hydrocarbon Resin)와 분말고무개질재(Crumb Rubber Modifier)를 혼합시켜 도로포장에 사용되는 아스팔트혼합물의 성능을 향상시킨 개질아스팔트 조성물을 제공함에 그 목적이 있다.The present invention has been devised to improve the disadvantages of the conventional asphalt, the performance of the asphalt mixture used for road paving by mixing natural hydrocarbon resin (Curb) and powder rubber modifier (Crumb Rubber Modifier) to the components of the asphalt The purpose is to provide a modified asphalt composition having improved.
상기한 목적을 달성하기 위하여 본 발명은 도로포장용 아스팔트혼합물에 사용되는 개질아스팔트 조성물에 있어서, 아스팔트 88~94중량%에 천연탄화수소수지 2~4중량%와 분말고무개질재 4~8중량%를 혼합하여 조성되는 것을 특징으로 하는 개질아스팔트 조성물을 제공하게 된다.In order to achieve the above object, the present invention, in the modified asphalt composition used in the asphalt mixture for road pavement, mixing 88 to 94% by weight of 2 to 4% by weight of natural hydrocarbon resin and 4 to 8% by weight of powdered rubber modifier It is to provide a modified asphalt composition characterized in that the composition.
이하, 본 발명을 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail.
본 발명에서는 아스팔트의 개질재로서 아스팔트의 성분에 천연탄화수소수지(Natural Hydrocarbon Resin)와 분말고무개질재(Crumb Rubber Modifier)를 첨가하여 아스팔트포장의 소성변형 및 피로균열, 저온균열, 탈리현상 등의 문제점을 개선하였다.In the present invention, by adding natural hydrocarbon resin and powder rubber modifier to asphalt components as asphalt modifiers, problems such as plastic deformation, fatigue cracking, low temperature cracking and desorption of asphalt pavement Improved.
이때, 천연탄화수소수지(Natural Hydrocarbon Resin)는 아스팔트의 물성중 고온에서의 강성(Stiffness)을 증대시켜 여름철의 고온영역에서 아스팔트포장의 소성변형을 방지하게 된다.At this time, the natural hydrocarbon resin (Natural Hydrocarbon Resin) to increase the stiffness (stiffness) at high temperatures in the physical properties of the asphalt to prevent plastic deformation of the asphalt pavement in the high temperature region of the summer.
그리고, 분말고무개질재(Crumb Rubber Modifier)는 부드럽고 탄성적인 성질을 갖고 있어 겨울철과 같은 저온영역에서 아스팔트포장의 저온균열 및 피로균열을 방지하게 된다.And, the rubber rubber modifier (Crumb Rubber Modifier) has a soft and elastic properties to prevent low temperature cracking and fatigue cracking of asphalt pavement in the low temperature region, such as winter.
이러한 재료적 특성을 갖는 천연탄화수소수지(Natural Hydrocarbon Resin)와 분말고무개질재(Crumb Rubber Modifier)를 적당한 혼합비로 아스팔트의 성분과 혼합하게 된다.다시 말하면, 본 발명에 따른 개질아스팔트의 조성물은 실험결과에 따르면, 전체중량의 20%내에서 천연탄화수소수지와 분말고무개질재를 혼합하는 것이 가장 바람직하다.Natural hydrocarbon resin and powder rubber modifier having such material properties are mixed with the components of asphalt in an appropriate mixing ratio. In other words, the modified asphalt composition according to the present invention is tested. According to the present invention, it is most preferable to mix the natural hydrocarbon resin and the powdered rubber modifier within 20% of the total weight.
따라서, 이러한 결과를 비추어 볼 때, 아스팔트 88~94중량%에 천연탄화수소수지(Natural Hydrocarbon Resin) 2~4중량%와 분말고무개질재(Crumb Rubber Modifier) 4~8중량%로 혼합하여 개질아스팔트의 조성물을 만들게 된다.Therefore, in view of these results, the asphalt mixture of 88 ~ 94% by weight of natural hydrocarbon resin (Natural Hydrocarbon Resin) 2 ~ 4% by weight of rubber rubber modifier (Crumb Rubber Modifier) by mixing of 8% by weight of You will make a composition.
이때, 천연탄화수소수지(Natural Hydrocarbon Resin)는 흑갈색의 고체 성상의 천연개질재로서, 아스팔트내의 아스팔텐함량을 증가시켜 아스팔트혼합물의 강성을 개선시킬 목적으로 사용되며, 이러한 원리에 의해 아스팔트포장의 소성변형에 대한 저항을 증대시키는 동시에 골재와 아스팔트 사이의 강한 부착력을 얻는데 효과가 있다.At this time, natural hydrocarbon resin (Natural Hydrocarbon Resin) is a natural modifier of black brown solid properties, is used to increase the asphaltene content in the asphalt to improve the rigidity of the asphalt mixture, plastic deformation of the asphalt pavement by this principle It is effective in increasing resistance to aggregates and at the same time obtaining strong adhesion between aggregate and asphalt.
그러나, 천연탄화수소수지(Natural Hydrocarbon Resin)는 2중량%미만으로 혼합할 경우 소성변형에 대한 저항성이 떨어지게 되고, 4중량%를 초과하면 소성변형에 대한 저항성이 너무 커서 오히려 저온균열의 원인이 된다.However, the natural hydrocarbon resin (Natural Hydrocarbon Resin) is less than 2% by weight, the resistance to plastic deformation is lowered, if exceeding 4% by weight is too large resistance to plastic deformation is causing the cold cracking.
그리고, 분말고무개질재(Crumb Rubber Modifier)는 천연고무, 합성고무, 카본블랙과 다른 첨가물의 다양한 결합으로 이루어진 합성체로서, 천연고무는 합성체의 탄력성을 제공하게 되고, 합성고무는 합성체의 열안전성을 향상시키게 된다.In addition, the powder rubber modifier (Crumb Rubber Modifier) is a composite composed of various combinations of natural rubber, synthetic rubber, carbon black and other additives, natural rubber provides the elasticity of the composite, synthetic rubber Improved thermal safety
특히, 분말고무개질재(Crumb Rubber Modifier)는 아스팔트에 혼합될 경우 고무의 부드러운 성질을 갖게 하여 겨울철 저온에서도 유연성을 유지시키는 동시에 피로균열을 예방하게 된다.In particular, the rubber rubber modifier (Crumb Rubber Modifier) has the soft properties of the rubber when mixed with asphalt to maintain flexibility even at low temperatures in winter, while preventing fatigue cracking.
그러나, 분말고무개질재(Crumb Rubber Modifier)는 4중량%미만으로 혼합할 경우 저온 또는 피로균열에 대한 저항성이 떨어지게 되고, 8중량%를 초과하면 오히려 아스팔트포장의 강성을 떨어뜨려 소성변형의 원인이 된다.However, when the rubber rubber modifier is mixed at less than 4% by weight, the resistance to low temperature or fatigue cracking is lowered. When it exceeds 8% by weight, the rubber rubber modifier is less likely to cause plastic deformation by reducing the rigidity of the asphalt pavement. do.
결국, 천연탄화수소수지(Natural Hydrocarbon Resin)와 분말고무개질재(Crumb Rubber Modifier)는 서로 보완작용을 하게 되어 너무 과소하거나 과대할 경우 오히려 아스팔트혼합물의 저항성이 떨어뜨리기 때문에 혼합비율을 정확히 준수하여야 한다.As a result, the natural hydrocarbon resin and the rubber rubber modifier complement each other, so if the amount is too small or excessive, the resistance of the asphalt mixture is lowered.
본 발명은 아스팔트와 골재의 접착력을 강화시켜 고온에서 강성이 강해지고, 저온에서 균열을 견딜 수 있으며, 도로포장에 사용되는 아스팔트혼합물에 적용될 경우 내구성능이 향상되면서 하중에 대한 대응력이 증대되어 도로수명을 연장시키고, 도로유지비용을 현저히 낮출 수 있는 효과를 제공하게 된다.The present invention is to strengthen the adhesive strength of asphalt and aggregates, the stiffness at high temperature, can withstand cracks at low temperatures, when applied to asphalt mixtures used for road paving, the durability is improved, the ability to respond to the load increases road life It can provide an effect that can extend and significantly lower the cost of road maintenance.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990035508A KR100351261B1 (en) | 1999-08-25 | 1999-08-25 | Modified asphalt composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990035508A KR100351261B1 (en) | 1999-08-25 | 1999-08-25 | Modified asphalt composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010019214A KR20010019214A (en) | 2001-03-15 |
| KR100351261B1 true KR100351261B1 (en) | 2002-09-10 |
Family
ID=19608690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990035508A KR100351261B1 (en) | 1999-08-25 | 1999-08-25 | Modified asphalt composition |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100351261B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100669079B1 (en) | 2005-12-28 | 2007-01-16 | 한국건설기술연구원 | Powder type asphalt modifier and asphalt concrete using asphalt pavement and porous pavement |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100462405B1 (en) * | 2001-07-05 | 2004-12-17 | 한국건설기술연구원 | Modified asphalt mixed with crumb rubber and gilsonite resin, methot for fabricating the same and method for fabricating asphalt concrete using the same |
| KR20030004579A (en) * | 2001-07-05 | 2003-01-15 | 한국건설기술연구원 | Powder-type asphalt modifier mixed with crumb rubber and gilsonite resin, method for fabricating the same and method for fabricating asphalt concrete using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5936015A (en) * | 1998-10-16 | 1999-08-10 | Creanova Inc. | Rubber-modified asphalt paving binder |
-
1999
- 1999-08-25 KR KR1019990035508A patent/KR100351261B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5936015A (en) * | 1998-10-16 | 1999-08-10 | Creanova Inc. | Rubber-modified asphalt paving binder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100669079B1 (en) | 2005-12-28 | 2007-01-16 | 한국건설기술연구원 | Powder type asphalt modifier and asphalt concrete using asphalt pavement and porous pavement |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010019214A (en) | 2001-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mashaan et al. | Performance evaluation of crumb rubber modified stone mastic asphalt pavement in Malaysia | |
| Gawande et al. | An overview on waste plastic utilization in asphalting of roads | |
| Mashaan et al. | An overview of crumb rubber modified asphalt | |
| US4068023A (en) | Rubberized asphalt paving composition and use thereof | |
| AU2006242143B2 (en) | Modified asphalt binder material using crosslinked crumb rubber and methods of manufacturing a modified asphalt binder | |
| CN101775223B (en) | Additive for drainage asphalt mixture of high temperature heavy load road and preparation method thereof | |
| CN108298871B (en) | Asphalt mixture and preparation method thereof | |
| KR101844769B1 (en) | High Adhesion Asphalt Binder Compositions Using Stylene Isoprene Stylene and Constructing Methods Using Thereof | |
| CN108165031A (en) | A kind of production technology of rubber powder modified asphalt | |
| Singhal et al. | Use of modified bitumen in highway construction | |
| CN108410185A (en) | A kind of high-viscosity asphalt and preparation method thereof | |
| Vichitcholchai et al. | Modification of asphalt cement by natural rubber for pavement construction | |
| CN106751356B (en) | Reflection cracking-inhibiting type low-noise high-durability asphalt mixture and thin layer paving method using same | |
| CN113698138B (en) | high-RAP-content regeneration mixture and preparation method and application thereof | |
| CN110527310A (en) | A kind of waterproof antiskid asphalt pavement conserving material | |
| KR100351261B1 (en) | Modified asphalt composition | |
| WO2011057085A2 (en) | Asphalt additive with improved performance | |
| US5578118A (en) | Natural polyphenolic-containing vegetable extract modified bitumen and anti-stripper compositions, method of manufacture and use | |
| Gawel | Sulphur-modified asphalts | |
| KR20000061151A (en) | Natural hydrocarbon resin-styrene-butadiene-styrene asphalt | |
| JPH10168323A (en) | Modified asphalt and its production | |
| CN106634823A (en) | Road sealant | |
| CN105802258A (en) | Pitch modified by high-viscosity and high-elasticity body and preparation method of pitch | |
| US5578663A (en) | Pavement rejuvenator and dressing conditioner with elastomer | |
| WO2010068143A1 (en) | Cold asphalt concrete mixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| AMND | Amendment | ||
| E801 | Decision on dismissal of amendment | ||
| E601 | Decision to refuse application | ||
| J201 | Request for trial against refusal decision | ||
| AMND | Amendment | ||
| B701 | Decision to grant | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20120821 Year of fee payment: 11 |
|
| FPAY | Annual fee payment |
Payment date: 20130807 Year of fee payment: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20140819 Year of fee payment: 13 |
|
| FPAY | Annual fee payment |
Payment date: 20150821 Year of fee payment: 14 |
|
| FPAY | Annual fee payment |
Payment date: 20161024 Year of fee payment: 15 |
|
| FPAY | Annual fee payment |
Payment date: 20170822 Year of fee payment: 16 |