KR100416301B1 - Rejuvenator asphalt concrete containing the rejuvenator for recycling of aged asphalt concrete - Google Patents
Rejuvenator asphalt concrete containing the rejuvenator for recycling of aged asphalt concrete Download PDFInfo
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- KR100416301B1 KR100416301B1 KR10-2001-0012943A KR20010012943A KR100416301B1 KR 100416301 B1 KR100416301 B1 KR 100416301B1 KR 20010012943 A KR20010012943 A KR 20010012943A KR 100416301 B1 KR100416301 B1 KR 100416301B1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/20—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with hydrocarbons or halogenated hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/22—Recycled asphalt
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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
- 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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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
본 발명은 폐아스팔트콘크리트의 재활용을 위한 재생 첨가제를 함유하는 재생아스팔트콘크리트에 관한 것으로, 본 발명에 따른 재생 첨가제는 파라핀기유 5 내지 30중량% , 아로마틱기유 40 내지 60중량% 및 나프텐기유 20 내지 45중량%를 포함하는 것을 특징으로 하고 본 발명에 따른 재생아스팔트콘크리트는 폐아스팔트콘크리트 에 상기 재생 첨가제 5 내지 20중량%를 포함하는 것을 특징으로 하여 폐아스팔트콘크리트 중의 폐아스팔트의 성상을 신제아스팔트와 같은 정도로 회복시킴으로써 폐아스팔트콘크리트를 재활용할 수 있게 하기에 자원 재활용에 효과적일 뿐만 아니라 폐아스팔트콘크리트로 인한 공해문제를 방지할 수 있다.The present invention relates to a recycled asphalt concrete containing a recycled additive for recycling waste asphalt concrete, the recycled additive according to the present invention is 5 to 30% by weight of paraffin base oil, 40 to 60% by weight aromatic base oil and 20 to naphthenic base oil. It is characterized in that it comprises 45% by weight and the recycled asphalt concrete according to the present invention comprises 5 to 20% by weight of the recycled additive in the waste asphalt concrete, the properties of the waste asphalt in the waste asphalt concrete, such as Shinje asphalt By recovering to the extent that waste asphalt concrete can be recycled, it is not only effective for resource recycling but also prevents pollution problems caused by waste asphalt concrete.
Description
본 발명은 폐아스팔트콘크리트의 재활용을 위한 재생 첨가제를 함유하는 재생아스팔트콘크리트에 관한 것으로, 더욱 구체적으로는 도로 교체 등으로 발생하는 폐아스팔트콘크리트를 재활용하기 위해 폐아스팔트콘크리트의 폐아스팔트의 성상을 신제아스팔트와 같은 정도로 회복시키는 폐아스팔트콘크리트 재생 첨가제와 이를 함유하는 재생아스팔트콘크리트에 관한 것이다.The present invention relates to a recycled asphalt concrete containing a recycled additive for recycling waste asphalt concrete, and more specifically to the waste asphalt of waste asphalt concrete to recycle waste asphalt concrete generated by road replacement, etc. The present invention relates to waste asphalt concrete regeneration additives to recover to the same extent as and to recycled asphalt concrete containing the same.
아스팔트콘크리트는 아스팔트와 시멘트가 결합된 것으로서 도로 등의 건설에 선호되고 있는 재료이다. 그러나 이러한 아스팔트콘크리트는 영구적으로 사용할 수 없기에 일정기간이 지나면 교체를 해야하고 또한 지하 매설물 공사 등으로 인해 도로 포장을 걷어내야 하기에 그로 인해 다량 배출되는 폐아스팔트콘크리트의 처리는 사회적으로 큰 문제이다. 따라서 이러한 폐아스팔트콘크리트의 재활용에 관심이 증가하고 있다. 특히 아스팔트콘크리트에서 사용되는 아스팔트는 크게 아스팔텐, 포화탄화수소유분, 나프텐아로마틱유분 및 극성아로마틱유분으로 이루어진 것으로서 원유를 분류할 때 최종적으로 남는 찌꺼기이기에 일종의 공해물질이다. 그러므로 폐아스팔트콘크리트를 지상 또는 지중에 폐기하면 이에 포함된 아스팔트에 의해 지하수 및 하천, 강등을 오염시켜 심각한 공해문제를 야기하게 된다. 이러한 이유로 폐아스팔트콘크리트는 공해를 일으키는 산업폐기물로서 분류되고 있다. 따라서 폐아스팔트콘크리트으로 인한 공해 발생을 방지하거나 최소화하기 위해 이를 재활용하는 연구가 진행되고 있다.Asphalt concrete is a combination of asphalt and cement, and is the preferred material for road construction. However, such asphalt concrete cannot be permanently used, and after a certain period of time, the asphalt concrete must be replaced and the road pavement is removed due to underground buried construction. Therefore, the disposal of waste asphalt concrete that is discharged in large quantities is a social problem. Therefore, there is a growing interest in recycling such waste asphalt concrete. In particular, asphalt used in asphalt concrete is mainly composed of asphaltenes, saturated hydrocarbon oils, naphthenic aromatic oils and polar aromatic oils, which is a kind of pollutant because it is the last residue left when classifying crude oil. Therefore, when the waste asphalt concrete is disposed on the ground or ground, the asphalt contained therein contaminates groundwater, rivers, and rivers, causing serious pollution problems. For this reason, waste asphalt concrete is classified as industrial waste causing pollution. Therefore, research is being conducted to recycle them in order to prevent or minimize pollution caused by waste asphalt concrete.
현재 폐아스팔트콘크리트 재활용 기술로서 현장에서 적용되고 있는 대부분의 기술은 고온 혼합(Hot Mix) 방식이며, 대표적인 방법으로는 재포장 현장에서 직접 가열하여 폐아스팔트콘크리트를 회수한 후에 폐아스팔트콘크리트와 신제아스팔트콘크리트, 그리고 재생첨가제(rejuvenator)를 적정 배합하여 현장에서 바로 재포장하는 가열현장재활용(Hot-In-Place Recycling) 공법과 폐아스팔트콘크리트를 아스팔트콘크리트 플랜트로 회수하여 재분쇄 및 분리과정을 거친 후에 신제아스팔트콘크리트와 재생 첨가제와 함께 플랜트 믹서내에서 적정 혼합하여 재포장용 아스팔트콘크리트를 생산하는 가열플랜트재활용(Hot-In-Plant Recyclimg) 공법이 있다.Most of the technologies currently applied in the field as waste asphalt concrete recycling technology are hot mix method, and the typical method is the waste asphalt concrete and Shinze asphalt concrete after recovering the waste asphalt concrete by heating directly at the repackaging site. Hot-In-Place Recycling, which re-packages on the spot with the proper combination of rejuvenator and waste asphalt concrete to be recovered to asphalt concrete plant, and then regrind and separated. Hot-In-Plant Recyclimg is a method of producing asphalt concrete for resurfacing by properly mixing in a plant mixer with concrete and regeneration additives.
또한 이러한 공법에 사용되는 재생 첨가제에 대한 연구 역시 활발하게 진행되어 오고 있으며, 예를 들면 다음과 같다. 미국특허 제4,373,961호에서는 특수한 유화아스팔트를 사용하여 노후한 폐아스팔트콘크리트를 잘게 부수어서 상온에서 배합하여 재사용하는 방법을 제시하면서 재생용 첨가제로서 물과 유화제를 사용한 유화아스팔트를 사용하고 재포장 방법 또한 상온 포장을 원칙으로 하고 있다. 특히 상온 포장을 위해서는 폐아스팔트콘크리트를 플랜트로 수거해서 크러셔(Crusher)로 잘게 부순 상태에서 특별히 제조된 유화아스팔트를 상온에서 배합하는 방법을 이용하고 있다. 또한 미국특허 제 3,793,189호에서는 노후된 아스팔트의 성상을 개선시키기 위해 초임계 유체 분리방법인 프로판을 용매로 한 탈력유(Deasphaltde Oil)와 중질경유(Heabyt Distillate) 그리고 석유 잔사유(Residual Oil)등을 혼합하여 사용하는 방법을 개시하고 있다. 또한, 미국특허 제 3,221,615호에서는 콜타르(Coaltar)유도체를 이용하여 노화 아스팔트의 성상을 회복시키는 방법을 개시하고 있으나 이 때 사용된 재생용 첨가제는 콜타르에서 추출한 것으로 방향족 벤젠 고리가 2∼4개이면서 페놀릭(Phenolic)과 히드록시(hydroxy) 유도체를 가지고 있는 알킬 화합물의 기능 그룹을 가지는 화합물로 한정하고 있다. 또한, 미국특허제4,278,469호에서는 도로 보수 및 표면 처리용 재생 첨가제로서 아스팔트에서 추출한 일부 유분과 특정 고분자 그리고 중질 방향족 용제를 혼합한 조성물이 제시되어 있다. 또한, 미국특허 제4,325,738호에서는 쉘오일(shale oil)에서 추출한 피리딘(pyridine) 계열의 혼합물에 산염(Acid salts)을 첨가하여 아스팔트의 노화를 개선하는 첨가제를 개시하고 있다. 또한, 미국특허 제4,549,834호에서는 아스팔틱유(Asphaltic oil)와 레진(resin), 그리고 피치(pitch)로 구성된 폐아스팔트콘크리트 재생용 첨가제를 개시하고 있다. 또한, 캐나다특허 제2,304,260호에서는 하수 오물 내에 슬러지(Sludge)에서 추출한 오일을 활용한 재생용 첨가제를 개시하고 있다.In addition, research on the regeneration additives used in such a process has also been actively conducted, for example: U.S. Patent No. 4,373,961 proposes a method of crushing old waste asphalt concrete using a special emulsified asphalt finely and mixing and reusing it at room temperature. In principle, packaging. In particular, for room temperature packaging, waste asphalt concrete is collected in a plant, and a method of blending emulsified asphalt specially prepared in a state in which it is finely crushed with a crusher is used at room temperature. In addition, U.S. Patent No. 3,793,189 describes a mixture of deasphaltde oil, heavy distillate, and residual oil with propane as a supercritical fluid separation method to improve the properties of aged asphalt. Discloses a method of use. In addition, U.S. Patent No. 3,221,615 discloses a method of restoring the properties of aging asphalt by using a coal tar derivative, but the regeneration additive used here is extracted from coal tar and has 2 to 4 aromatic benzene rings and phenol. It is limited to compounds having functional groups of alkyl compounds having phenolic and hydroxy derivatives. In addition, U.S. Patent No. 4,278,469 discloses a composition in which some oil extracted from asphalt, a specific polymer, and a heavy aromatic solvent are mixed as a regeneration additive for road repair and surface treatment. In addition, US Patent No. 4,325,738 discloses additives for improving the aging of asphalt by adding acid salts to a pyridine-based mixture extracted from shell oil. In addition, U. S. Patent No. 4,549, 834 discloses additives for recycling waste asphalt concrete composed of asphalt oil, resin, and pitch. In addition, Canadian Patent No. 2,304,260 discloses a regeneration additive utilizing oil extracted from sludge in sewage.
그러나 이와 같은 종래의 폐아스팔트콘크리트 재생 첨가제는 콜타르 유도체나 중질유 접촉분해공정 등에서 부수적으로 생성되는 슬러지 오일 등을 사용하기에 성분 함량과 성능이 항상 동일한 제품을 생산하기 어려울 뿐만 아니라 환경에도 좋지 못한 영향을 끼쳤다.However, such conventional waste asphalt concrete regeneration additives are difficult to produce products having the same content and performance as well as environmentally adverse effects due to the use of coal tar derivatives or sludge oils which are incidentally generated in heavy oil catalytic cracking processes. It hurt.
이에 본 발명자들은 시판되고 있는 고급 기유을 사용하여 폐아스팔트콘크리트의 재활용을 위한 재생 첨가제를 개발하였으며 이러한 재생 첨가제가 폐아스팔트의 성상 복원 능력이 클 뿐만 아니라 현장에서 직접 폐아스팔트콘크리트와 배합하여 사용할 수 있고 또한 오염도가 낮아 환경에도 안정함을 발견하여 본 발명을 완성하였다.Therefore, the present inventors have developed a regeneration additive for recycling waste asphalt concrete using commercially available high-quality base oils, and the regeneration additive can be used in combination with waste asphalt concrete directly in the field, as well as the ability to restore the properties of the waste asphalt. The pollution degree is low and found to be stable to the environment to complete the present invention.
본 발명은 폐아스팔트콘크리트의 재활용을 통해 폐기물 처리 비용과 골재 및 아스팔트 자원을 절약하는 것과 동시에 환경오염을 방지하기 위한 폐아스팔트콘크리트 재생 첨가제를 제공하는 것을 목적으로 한다.It is an object of the present invention to provide waste asphalt concrete regeneration additives to prevent waste due to the reduction of waste disposal costs and aggregate and asphalt resources through recycling of waste asphalt concrete.
또한 본 발명은 폐아스팔트콘크리트의 재활용을 통해 폐기물 처리 비용과 골재 및 아스팔트 자원을 절약하는 것과 동시에 환경오염을 방지하기 위한 재생아스팔트콘크리트를 제공하는 것을 또 다른 목적으로 한다.In another aspect, the present invention is to provide a recycled asphalt concrete to prevent environmental pollution while at the same time saving waste disposal costs and aggregate and asphalt resources through the recycling of waste asphalt concrete.
상기 목적을 달성하기 위하여 본 발명에 따른 폐아스팔트콘크리트 재활용을 위한 재생 첨가제는 파라핀기유 5 내지 30중량% , 아로마틱기유 40 내지 60중량% 및 나프텐기유 20 내지 45중량%를 포함하는 것을 특징으로 한다. 또한 본 발명에 따른 재생아스팔트콘크리트는 폐아스팔트콘크리트에 상기 재생 첨가제 5 내지 20중량%를 포함하는 것을 특징으로 한다.Recycling additive for waste asphalt concrete recycling according to the present invention in order to achieve the above object is characterized in that it comprises 5 to 30% by weight paraffin base oil, 40 to 60% by weight aromatic base oil and 20 to 45% by weight naphthenic base oil. . In addition, the recycled asphalt concrete according to the present invention is characterized in that it comprises 5 to 20% by weight of the recycled additive in the waste asphalt concrete.
도 1은 폐아스팔트, 본 발명에 따른 재생 첨가제를 첨가한 폐아스팔트 및 신제아스팔트의 침입도를 비교하여 나타내는 그래프이고,1 is a graph showing the penetration of waste asphalt, waste asphalt to which the regeneration additive according to the present invention is added, and new asphalt;
도 2는 폐아스팔트, 본 발명에 따른 재생 첨가제를 첨가한 폐아스팔트 및 신제아스팔트의 신도를 비교한 그래프이며,2 is a graph comparing the elongation of waste asphalt, waste asphalt to which the recycle additive according to the present invention is added, and new zeolite;
도 3은 폐아스팔트, 본 발명에 따른 재생 첨가제를 첨가한 폐아스팔트 및 신제아스팔트의 연화점을 비교하여 나타내는 그래프이고,3 is a graph showing the comparison of the softening point of waste asphalt, waste asphalt to which the recycle additive according to the present invention is added, and new asphalt;
도 4는 폐아스팔트, 본 발명에 따른 재생 첨가제를 첨가한 폐아스팔트 및 신제아스팔트의 절대점도를 비교하여 나타내는 그래프이다.Figure 4 is a graph showing the comparison of the absolute viscosity of the waste asphalt, the waste asphalt to which the regeneration additive according to the invention and the new agent asphalt.
본 발명은 폐아스팔트콘크리트를 콘크리트 도로 포장 등의 기본 골재로서 재활용하기 위해 파라핀기유 5 내지 30중량%, 아로마틱기유 40 내지 60중량% 및 나프텐기유 20 내지 45중량%를 포함하는 재생 첨가제를 폐아스팔트콘크리트에 폐아스팔트 총량에 대해 5 내지 20중량% 혼합하여 사용하는 것이다.The present invention is to recycle waste additives containing 5-30% by weight of paraffin base oil, 40-60% by weight of aromatic base oil and 20-45% by weight of naphthenic base oil in order to recycle waste asphalt concrete as basic aggregate such as concrete road pavement. It is to use 5 to 20% by weight based on the total amount of asphalt asphalt in the concrete.
본 발명에서 사용하는 파라핀기유, 아로마틱기유 및 나프텐기유는 특별한 제한없이 국내에서 시판되고 있는 표 1과 같은 물성의 것을 사용한다.Paraffin base oil, aromatic base oil and naphthenic base oil used in the present invention uses those properties shown in Table 1 that are commercially available in Korea without particular limitation.
본 발명에 따른 재생 첨가제는 상기 물성의 파라핀기유를 5 내지 30중량% 포함한다. 바람직하게는 12중량%를 포함한다.The regeneration additive according to the present invention comprises 5 to 30% by weight of the above paraffin base oil. Preferably 12% by weight.
또한 본 발명의 재생 첨가제는 상기 물성의 아로마틱기유를 40 내지 60중량% 포함한다. 바람직하게는 50중량%를 포함한다. 아로마틱기유(aromatic oil)는 벤젠핵과 같은 aromatic ring carbon을 가지는 기유(base oil)로, 상용성(compatibility)과 가공성이 우수하지만 저온특성, 내온특성, 내오염성, 발열성 등이 낮다. 대부분의 고무와 상용성이 양호해 다량으로 배합가능하므로 프로세스유(process oil)과 신전유(extender oil)로 널리 사용된다.In addition, the regeneration additive of the present invention contains 40 to 60% by weight of the aromatic base oil of the above properties. Preferably 50% by weight. Aromatic base oil is a base oil having an aromatic ring carbon such as benzene nucleus, and has excellent compatibility and processability, but low temperature property, temperature resistance, pollution resistance, and exothermicity. Since it is compatible with most rubbers and can be blended in large quantities, it is widely used as a process oil and an extender oil.
본 발명의 재생 첨가제는 상기 물성의 나프텐기유 20 내지 45중량%를 포함한다. 바람직하게는 38중량%를 포함한다.The regeneration additive of the present invention comprises 20 to 45% by weight of the above naphthenic base oil. Preferably 38% by weight.
본 발명에 따른 재생 첨가제에서 각 성분의 함량을 파라핀기유의 경우 5중량%, 아로마틱기유의 경우 40중량%, 나프텐기유의 경우 20중량% 미만으로 하거나, 또한 각 성분의 함량을 파라핀기유의 경우 30중량%, 아로마틱기유의 경우 60중량%, 나프텐기유의 경우 45중량%를 초과하게 하면 폐아스팔트를 재생하기 위해 필요한 성분의 보충이 제대로 이루어지지 않는다.In the regenerated additive according to the present invention, the content of each component is 5 wt% for paraffin base oil, 40 wt% for aromatic base oil, and less than 20 wt% for naphthenic base oil, or the content of each component for paraffin base oil. If it exceeds 30% by weight, 60% by weight for aromatic base oil, 45% by weight for naphthenic base oil is not properly supplemented with ingredients necessary to regenerate waste asphalt.
이러한 비율로 혼합된 재생첨가제를 폐아스팔트콘크리트에 혼합하여 사용할 수 있으며, 이때 혼합 비율은 폐아스팔트 총량을 기준으로 하여 5 내지 20중량% 첨가하여 사용한다. 즉, 본 발명에 따른 재생 첨가제는 가열현장재활용공법에서는 폐아스팔트콘크리트를 회수한 후에 폐아스팔트콘크리트와 함께 폐아스팔트의 총량을 기준으로 5 내지 20중량%의 양으로 배합되어 현장에서 바로 재포장하는데에 사용될 수 있으며, 또한 가열플랜트재활용공법에서는 폐아스팔트콘크리트를 아스콘 플랜트로 회수하여 재분쇄 및 분리 과정을 거친 후에 플랜트 믹서내에서 폐아스팔트의 총량을 기준으로 5 내지 20중량%의 양으로 혼합되어 사용될 수 있다. 이때 종래의 방법에서처럼 신제아스팔트를 혼합하여 사용할 수도 있다.Regeneration additives mixed in such a ratio can be used by mixing with waste asphalt concrete, wherein the mixing ratio is used by adding 5 to 20% by weight based on the total amount of asphalt waste. That is, the recycled additive according to the present invention is recycled in the field by being mixed in an amount of 5 to 20% by weight based on the total amount of waste asphalt with waste asphalt concrete after the waste asphalt concrete is recovered. In the heating plant recycling method, the waste asphalt concrete is recovered to the asphalt concrete plant, regrind and separated, and then mixed in an amount of 5 to 20% by weight based on the total amount of waste asphalt in the plant mixer. have. At this time, it is also possible to use a new agent asphalt mixture as in the conventional method.
또한 폐아스팔트콘크리트에 본 발명에 따른 재생 첨가제를 폐아스팔트의 총량을 기준으로 하여 5 내지 20중량%, 바람직하게는 20중량%를 첨가하여 재생아스팔트콘크리트를 제조할 수 있다.In addition, recycled asphalt concrete may be prepared by adding 5 to 20% by weight, preferably 20% by weight, of the recycled additive according to the present invention to waste asphalt concrete based on the total amount of waste asphalt.
이하, 본 발명을 실시예에 의해 더욱 구체적으로 설명한다. 단, 이러한 실시예는 본 발명을 예시하기 위한 것으로 본 발명의 범위가 이로써 제한되는 것은 아니다. 특별한 언급이 없는 한 단위는 중량%이다.Hereinafter, the present invention will be described in more detail with reference to Examples. However, these examples are intended to illustrate the present invention and the scope of the present invention is not limited thereto. Unless otherwise specified, units are in weight percent.
실시예 1Example 1
아스팔트의 노화에 따른 성분 변화를 알아보기 위해 신제아스팔트(AP-3)와폐아스팔트를 ASTM D 4124에 따라 아스팔텐, 포화탄화수소유분, 나프텐아로마틱유분, 극성아로마틱유분의 네가지 성분으로 분리하였다. 그 결과는 표 2와 같다.In order to examine the changes in the components of asphalt, aging asphalt (AP-3) and waste asphalt were separated into four components: asphaltene, saturated hydrocarbon oil, naphthenic aromatic oil and polar aromatic oil according to ASTM D 4124. The results are shown in Table 2.
위 표 2에서 알 수 있듯이, 신제아스팔트와 폐아스팔트 간에는 아스팔텐의 함량에 커다란 차이가 있다. 이는 아스팔트가 노화가 진행됨에 따라 아스팔텐의 함량이 크게 증가함을 나타내고, 또한 이러한 아스팔텐 함량의 증가는 나프텐아로마틱유분과 극성아로마틱유분이 아스팔텐으로 변한 결과로 추측된다.As can be seen in Table 2, there is a large difference in the content of asphaltene between the new asphalt and the spent asphalt. This indicates that the asphaltene content greatly increases as the asphalt ages, and the increase in the asphaltene content is presumed to be the result of the change of naphthenic aromatic oil and polar aromatic oil to asphaltenes.
따라서 본 발명에서 사용하는 나프텐기유 및 아로마틱기유의 구성 원소와 신제아스팔트의 나프텐아로마틱유분 및 극성아로마틱유분의 구성원소를 분석하였다. 그 결과는 표 3에 나타내었다.Therefore, the constituent elements of the naphthenic oil and the aromatic base oil used in the present invention and the components of the naphthenic aromatic oil and the polar aromatic oil of Shinze asphalt were analyzed. The results are shown in Table 3.
위의 표 3에서 확인할 수 있는 바와 같이, 본 발명에서 사용되는 나프텐기유와 아로마틱기유는 아스팔트의 노화에 따라 감소된 성분인 나프텐아로마틱유분과 극성아로마틱유분의 구성원소와 유사한 화학적 조성을 나타낸다.As can be seen in Table 3 above, the naphthenic oil and the aromatic base oil used in the present invention have a chemical composition similar to that of the components of the naphthenic aromatic oil and the polar aromatic oil which are components reduced with the aging of asphalt.
이로써 본 발명에 따른 재생 첨가제가 노화된 아스팔트의 구성 성분을 신제아스팔트와 유사하게 조절할 수 있음을 알 수 있다.As a result, it can be seen that the regeneration additive according to the present invention can control the components of the aged asphalt similarly to the new zeal asphalt.
실시예 2 및 3Examples 2 and 3
파라핀기유 12중량%, 아로마틱기유 50중량% 및 나프텐기유 38중량%를 혼합하여 폐아스팔트콘크리트 재생 첨가제를 제조하였다.12 wt% paraffin base oil, 50 wt% aromatic base oil and 38 wt% naphthenic base oil were mixed to prepare waste asphalt concrete regeneration additive.
그런 다음 위에서 얻은 재생 첨가제를 폐아스팔트에 10중량%(실시예 2) 및 20중량%(실시예 3)의 양으로 첨가하고 이를 충분히 혼합한 다음 재생 첨가제의 폐아스팔트에 대한 성상 복원에 대한 시험을 수행하였다. 이러한 재생시험은 한국석유품질검사소에 의뢰하여 수행하였다.Then, the regenerated additive obtained above was added to the waste asphalt in an amount of 10% by weight (Example 2) and 20% by weight (Example 3), and the mixture was sufficiently mixed, and then a test for restoring the properties of the waste asphalt of the recycled additive was carried out. Was performed. This regeneration test was performed by the Korea Petroleum Quality Inspection Institute.
침입도 시험은 KS M 2252법을 이용하여 폐아스팔트의 침입도와 재생첨가제를 폐아스팔트에 10중량%, 20중량% 첨가했을 때의 침입도의 변화를 관찰하였다. 신도 시험은 KS M 2254법을 이용하여 폐아스팔트의 신도와 재생첨가제를 폐아스팔트에 첨가했을 때의 신도의 변화를 관찰하였다. 연화점 시험은 KS M 2250법을 이용하여 폐아스팔트의 연화점과 재생첨가제를 폐아스팔트에 첨가했을 때의 연화점의 변화를 관찰하였다. 절대점도는 KS M 2247법을 이용하여 폐아스팔트의 절대점도와 재생첨가제를 폐아스팔트에 첨가했을 때의 절대점도의 변화를 관찰하였다.Invasiveness test was conducted using KS M 2252 method to observe the change in the invasiveness of the waste asphalt when the 10% by weight, 20% by weight of the regeneration additive was added to the waste asphalt. In the elongation test, the change of elongation of waste asphalt and the addition of regeneration additive to waste asphalt were observed using KS M 2254 method. In the softening point test, the softening point of waste asphalt and the regeneration additive were added to the waste asphalt using KS M 2250 method. Absolute viscosity was measured by using KS M 2247 method and the change of absolute viscosity of waste asphalt and the addition of regeneration additive to waste asphalt.
또한 신제아스팔트 AP-3에 대한 침입도, 신도 연화점, 절대점도도 함께 측정하여 폐아스팔트에 본 발명에 따른 재생첨가제를 첨가했을 때 나타나는 효과를 직접 비교하였다. 이러한 시험에 대한 결과는 표 4와 같다. 또한 그 결과를 도 1 내지 도 4로 나타내었다.In addition, invasion, new softening point, and absolute viscosity of Shinze asphalt AP-3 were also measured to directly compare the effect of adding the regeneration additive according to the present invention to the waste asphalt. The results for these tests are shown in Table 4. In addition, the results are shown in Figures 1 to 4.
표 4 및 도 1에서 알 수 있듯이, 침입도가 17인 폐아스팔트에 본 발명에 따른 재생 첨가제 10중량%와 20중량%를 첨가하였을 때 침입도는 각각 43과 80으로 증가하였다. 이 값은 신제아스팔트의 침입도에 근접한 것으로 본 발명에 따른 재생 첨가제를 첨가함으로써 침입도가 신제아스팔트와 같은 정도로 회복되었음을 확인할 수 있다.As can be seen from Table 4 and FIG. 1, when 10 wt% and 20 wt% of the regeneration additive according to the present invention was added to the waste asphalt having an infiltration degree of 17, the penetration increased to 43 and 80, respectively. This value is close to the penetration of the new zeolite, and it can be confirmed that the penetration is restored to the same degree as the new zeolite by adding the regeneration additive according to the present invention.
또한 표 4 및 도 2에서 알 수 있듯이, 골재와의 부착성 회복정도에 대한 시험인 신도 역시 폐아스팔트는 43㎝임에 반해 본 발명에 따른 재생첨가제 10중량%와 20중량%를 첨가하였을 때는 각각 98㎝와 150㎝로서 신제아스팔트의 150㎝와 비교하였을 때 별 차이가 없었다. 이로써 본 발명에 따른 재생 첨가제를 사용함으로써 폐아스팔트의 성상이 완전히 회복된 것임을 확인할 수 있다.In addition, as can be seen in Table 4 and Figure 2, the elongation test for the degree of adhesion recovery with aggregate is also 43cm waste asphalt, whereas when added 10% by weight and 20% by weight of the regeneration additive according to the present invention, respectively 98 cm and 150 cm, there was no difference when compared with 150 cm of new asphalt. As a result, it can be confirmed that the properties of the waste asphalt are completely recovered by using the regeneration additive according to the present invention.
또한, 표 4 및 도 3에서 알 수 있듯이, 연화점이 59℃인 폐아스팔트에 본 발명에 따른 첨가제를 각각 10중량%, 20중량% 첨가하면 연화점이 각각 52℃와 44℃로서 신제아스팔트의 42℃에 근접함을 알 수 있었다.In addition, as can be seen in Table 4 and Figure 3, when the additive according to the present invention to the waste asphalt having a softening point of 59 ° C 10% by weight, 20% by weight, respectively, the softening point is 52 ℃ and 44 ℃ respectively 42 ℃ of Shinje asphalt Close to.
또한 표 4 및 도 4에서 알 수 있듯이, 본 발명에 따른 재생 첨가제를 절대점도 34,99 cSt인 페아스팔트에 10중량% 및 20중량% 첨가하였을 때 절대점도는 각각3,008 cSt와 1,251cSt였다. 또한 신제아스팔트의 점도는 1,200cSt였다. 이로써 본 발명에 따른 재생 첨가제를 폐아스팔트에 20중량% 첨가하면 신제아스팔트 정도로 절대점도가 회복됨을 알 수 있다.In addition, as can be seen in Table 4 and Figure 4, the absolute viscosity was 3,008 cSt and 1,251 cSt when 10 wt% and 20 wt% of the recycle additive according to the present invention was added to the asphalt asphalt having an absolute viscosity of 34,99 cSt. In addition, the viscosity of the newly produced asphalt was 1,200 cSt. Thus, it can be seen that when the regeneration additive according to the present invention is added to the waste asphalt by 20% by weight, the absolute viscosity is restored as much as the new asphalt.
이와 같이 본 발명에 따른 재생 첨가제는 이를 폐아스팔트에 첨가하면 폐아스팔트의 성상을 신제아스팔트에 근접하게 회복시킴으로써 폐아스팔트 및 폐아스팔트콘크리트를 재활용하는데 효과적이다.As described above, the regeneration additive according to the present invention is effective in recycling the waste asphalt and waste asphalt concrete by recovering the properties of the waste asphalt close to the new asphalt when it is added to the waste asphalt.
상술한 바와 같이 파라핀기유, 나프텐기유 및 아로마틱기유를 포함하는 본 발명에 따른 폐아스팔트콘크리트의 재활용을 위한 재생 첨가제는 폐아스팔트콘크리트 중의 폐아스팔트의 성상을 신제아스팔트와 같은 정도로 회복시킴으로써 폐아스팔트콘크리트를 재활용할 수 있게 하기에 자원 재활용에 효과적일 뿐만 아니라 폐아스팔트콘크리트으로 인한 공해문제를 방지할 수 있다. 또한 본 발명에 따른 폐아스팔트콘크리트 재생 첨가제를 폐아스팔트콘크리트에 첨가하여 재생아스팔트콘크리트를 생산함으로써 현장에서 직접 편리하게 사용할 수 있다.The regeneration additive for recycling waste asphalt concrete according to the present invention comprising paraffin base oil, naphthenic base oil and aromatic base oil as described above recovers waste asphalt concrete in the waste asphalt concrete by recovering the properties of waste asphalt to the same level as new zeolite. It is not only effective in recycling resources, but also prevents pollution problems caused by waste asphalt concrete. In addition, the waste asphalt concrete recycling additive according to the present invention is added to the waste asphalt concrete to produce recycled asphalt concrete, which can be conveniently used directly in the field.
Claims (4)
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2001-0012943A KR100416301B1 (en) | 2001-03-13 | 2001-03-13 | Rejuvenator asphalt concrete containing the rejuvenator for recycling of aged asphalt concrete |
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| KR10-2001-0012943A KR100416301B1 (en) | 2001-03-13 | 2001-03-13 | Rejuvenator asphalt concrete containing the rejuvenator for recycling of aged asphalt concrete |
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| KR100416301B1 true KR100416301B1 (en) | 2004-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100982350B1 (en) | 2010-05-12 | 2010-09-15 | 한국석유공업 주식회사 | Emulsion additive for regenerated ascon and producing method for the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100898393B1 (en) * | 2009-02-09 | 2009-05-18 | (주)현대아스콘 | Regeneration ascon and manufacturing method thereof |
| CN114149224B (en) * | 2021-11-25 | 2023-04-25 | 乌鲁木齐汇聚路面工程有限公司 | Waste asphalt concrete-based thermal regeneration asphalt concrete, preparation and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4000000A (en) * | 1972-09-05 | 1976-12-28 | Mendenhall Robert Lamar | Process for recycling asphalt-aggregate compositions |
| US4256506A (en) * | 1974-07-15 | 1981-03-17 | Mendenhall Robert Lamar | Asphalt composition for asphalt recycle |
| JPS61243860A (en) * | 1985-04-19 | 1986-10-30 | Nippon Oil Co Ltd | Additive for asphalt recycle |
| JPH0291303A (en) * | 1988-09-28 | 1990-03-30 | Idemitsu Kosan Co Ltd | Additive for recycling scrapped asphalt pavement |
| KR100212910B1 (en) * | 1997-03-10 | 1999-08-02 | 남창우 | Recycling agents for asphalt wastes and method for repaving the asphalt wastes |
-
2001
- 2001-03-13 KR KR10-2001-0012943A patent/KR100416301B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4000000A (en) * | 1972-09-05 | 1976-12-28 | Mendenhall Robert Lamar | Process for recycling asphalt-aggregate compositions |
| US4256506A (en) * | 1974-07-15 | 1981-03-17 | Mendenhall Robert Lamar | Asphalt composition for asphalt recycle |
| JPS61243860A (en) * | 1985-04-19 | 1986-10-30 | Nippon Oil Co Ltd | Additive for asphalt recycle |
| JPH0291303A (en) * | 1988-09-28 | 1990-03-30 | Idemitsu Kosan Co Ltd | Additive for recycling scrapped asphalt pavement |
| KR100212910B1 (en) * | 1997-03-10 | 1999-08-02 | 남창우 | Recycling agents for asphalt wastes and method for repaving the asphalt wastes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100982350B1 (en) | 2010-05-12 | 2010-09-15 | 한국석유공업 주식회사 | Emulsion additive for regenerated ascon and producing method for the same |
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