KR100975361B1 - The composition of asphalt concrete using reclaimed asphalt concrete and rejuvenators - Google Patents
The composition of asphalt concrete using reclaimed asphalt concrete and rejuvenators Download PDFInfo
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- KR100975361B1 KR100975361B1 KR20100038262A KR20100038262A KR100975361B1 KR 100975361 B1 KR100975361 B1 KR 100975361B1 KR 20100038262 A KR20100038262 A KR 20100038262A KR 20100038262 A KR20100038262 A KR 20100038262A KR 100975361 B1 KR100975361 B1 KR 100975361B1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
- C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Combustion & Propulsion (AREA)
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Abstract
Description
본 발명은 폐아스팔트 콘크리트를 함유하는 도로포장용 아스팔트 콘크리트 조성물에 관한 것으로, 더 구체적으로는 폐아스팔트 콘크리트를 재생하여 순환골재로 이용함과 동시에 고유황 중유를 주요성분으로 하는 에멀젼계 재생첨가제를 배합하여 노화된 아스팔트의 성상(물성)을 복원하는 복합적 작용에 의해 순수의 아스팔트 콘크리트가 갖고 있는 강도, 경도, 점성도, 안정도, 유연성을 고루 갖춘 재생 아스팔트 콘크리트 조성물에 관한 것이다.The present invention relates to an asphalt concrete composition for road pavement containing waste asphalt concrete, and more specifically, to recycle waste asphalt concrete and use it as a circulating aggregate, and to formulate an emulsion-based regeneration additive having high sulfur heavy oil as a main component. The present invention relates to a reclaimed asphalt concrete composition having the strength, hardness, viscosity, stability, and flexibility of pure asphalt concrete by a complex action of restoring the properties (physical properties) of the asphalt.
도로포장용 아스팔트 콘크리트는 골재, 시멘트, 아스팔트 등이 혼합된 물질로서, 아스팔트가 노후되어 폐기되는 폐아스팔트 콘크리트(이하에서는 약칭하여 '폐아스콘'으로 기재합니다)는 건설 산업폐기물로 분류되며 매년 대량 발생하고 있다. 이처럼 대량의 폐기물을 처리하기 위해서는 방대한 매립공간이 필요하여 자연을 훼손하게 되며, 매립물로부터 빗물에 의해 씻겨 나온 아스팔트나 잔류시멘트 등이 지층으로 흘러들어갈 경우 지하수와 하천을 차례로 오염시키게 되어 환경오염의 주요 원인으로 작용하고 있다.Asphalt concrete for road pavement is a mixture of aggregate, cement, asphalt, etc.Waste asphalt concrete (hereinafter abbreviated as 'waste ascon'), which is discarded due to the aging of asphalt, is classified as construction industry waste and is generated in large quantities every year. have. In order to treat such a large amount of waste, a huge amount of landfill space is required to damage nature, and when asphalt or residual cement, which is washed out from landfills, flows into the strata, it contaminates groundwater and rivers in order. It is acting as a major cause.
최근, 폐아스콘을 재활용하여 순환골재로 활용하는 연구가 토목, 건축분야에서 활발하게 진행되고 있고, 이에 따라 본 발명자는 폐아스콘 분쇄물을 이용하여 콘크리트 조성물을 제조하는 방법인 국내 등록특허 10-632203호를 개발한바 있으며, 순환골재를 이용한 포장재에 관한 것으로 국내 등록특허 10-672751호를 개발한 바 있지만, 이러한 기술들은 대부분 폐아스콘을 첨가제와 함께 아스팔트에 단순히 배합하여 사용하거나 폐아스콘을 골재로 이용하는 기술들로서 폐아스콘의 재활용에 있어서 노화된 아스팔트의 성상(물성)의 복원에 중점을 두고 재활용하는 기술은 그렇게 많지가 않다.Recently, researches to recycle waste ascon recycled aggregates have been actively conducted in the field of civil engineering and construction. Accordingly, the present inventors have made a method of manufacturing concrete compositions using waste ascon crushed products. Although it has been developed in Korea, and relates to packaging materials using recycled aggregates, we have developed Korea Patent Registration No. 10-672751, but most of these technologies use waste ascon as an additive with additives or waste ascon as aggregate. As technologies, there are not many technologies that focus on the recovery of properties of aging asphalt in recycling asbestos.
또한, 토목, 건축분야에서는 폐아스콘을 재활용하고 유화아스팔트나 계면활성제와 같은 혼화제를 첨가하여 재생아스팔트 콘크리트를 개발하고 있으며, 포장용으로 사용하기 위해서는 필요한 강도, 경도, 점성, 안정도 등을 필수적으로 갖추어야 하는데, 강도와 점성을 높이기 위하여는 물유리와 폴리아크릴산 나트륨, 스틸렌 부타디엔 러버라텍스와 같은 수용성 유화 고분자 그리고 카르복시메틸셀룰로오즈, 폴리에틸렌옥사이드 등의 수용성 고분자를 첨가한다.Also, in the civil engineering and construction fields, recycled asphalt concrete is being developed by recycling waste asphalt and adding admixtures such as emulsified asphalt or surfactant.In order to use it for pavement, it is necessary to have necessary strength, hardness, viscosity and stability. To increase the strength and viscosity, water glass, water-soluble emulsion polymers such as sodium polyacrylate and styrene butadiene rubber latex, and water-soluble polymers such as carboxymethyl cellulose and polyethylene oxide are added.
특히 유동성 강화 및 강도 감수제 역할을 하는 리그닌계(Lignin), 폴리카르복시산계(Polycarboxylates), 나프탈렌계(Naphthalene)를 사용하여 재생 아스팔트 콘크리트의 품질을 개선하는데 주력해 왔으며, 노화된 아스팔트의 재생첨가제에 대한 개발도 선행기술이 다수 있다.In particular, lignin, polycarboxylates, and naphthalene have been used to improve the quality of reclaimed asphalt concrete. There are also a number of prior art.
재생첨가제에 대한 선행기술로서는 국내 등록특허 10-0212910호에서는 중질유 접촉 분해공정에서 부생되는 슬러리 오일을 폐아스콘의 재생첨가제로 사용하는 것을 개시하고 있고, 또 국내 등록특허 10-0898393호에서는 폐아스콘의 가열 직후 오일과 폐비닐수지의 열분해물로 이루어지는 수지기반 오일첨가제를 노화된 아스팔트의 재생첨가제로 사용하는 것을 개시하고 있다.As a prior art for regeneration additives, Korean Patent No. 10-0212910 discloses the use of slurry oil by-produced in the heavy oil catalytic cracking process as a regeneration additive for waste ascone, and in Korean Patent No. 10-0898393, Disclosed is the use of a resin-based oil additive consisting of a thermal decomposition product of oil and waste vinyl resin immediately after heating as a regeneration additive for aged asphalt.
그리고 외국문헌으로서는 미국특허 제3,793,189호에서는 노후된 아스팔트의 성상을 개선시키기 위해 초임계 유체 분리방법인 프로판을 용매로 한 탈력유(Deasphaltde Oil)와 중질경유(Heavy Distillate) 그리고 석유 잔사유(Residual Oil) 등을 혼합하여 사용하는 방법을 개시하고 있으며, 미국특허 제3,221,615호에서는 콜타르(Coal tar)유도체를 이용하여 노화 아스팔트의 성상을 회복시키는 방법을 개시하고 있으나, 이때 사용된 재생용 첨가제는 콜타르에서 추출한 것으로 방향족 벤젠 고리가 2 내지 4개이면서 페놀릭(Phenolic)과 히드록시(hydroxy) 유도체를 가지고 있는 알킬 화합물의 기능 그룹을 가지는 화합물로 한정하고 있다. 또한, 미국특허 제4,278,469호에서는 도로 보수 및 표면 처리용 재생첨가제로서 아스팔트에서 추출한 일부 유분과 특정 고분자 그리고 중질 방향족 용제를 혼합한 조성물이 개시되어 있다.As a foreign document, U.S. Patent No. 3,793,189 discloses deasphaltde oil, heavy distillate, and residual oil with propane as a supercritical fluid separation method to improve the properties of aged asphalt. A method of mixing and the like is disclosed, and US Patent No. 3,221,615 discloses a method of restoring the properties of aging asphalt by using a coal tar derivative, but the additive for regeneration used here is extracted from coal tar. It is defined as a compound having a functional group of an alkyl compound having 2 to 4 aromatic benzene rings and having phenolic and hydroxy derivatives. In addition, US Patent No. 4,278,469 discloses a composition in which a portion of oil extracted from asphalt, a specific polymer and a heavy aromatic solvent are mixed as a regeneration additive for road repair and surface treatment.
본 발명은 폐아스콘을 재생하여 순환골재로 사용함으로써 천연골재 자원의 보호와 환경 보호적 측면을 강화함과 동시에 고유황 중유를 주성분으로 하는 에멀젼계 재생첨가제를 배합하여 노화된 아스팔트 성상(물성)의 복원 및 가황작용으로 순수의 아스팔트 콘크리트가 갖고 있는 강도, 경도, 점성도, 안정도, 유연성을 고루 갖춘 재생 아스팔트 콘크리트 조성물을 제공하고자 하는 것이 본 발명의 목적이다.The present invention reconstructs the aged asphalt properties (physical properties) by regenerating waste ascon and using recycled aggregates to enhance the protection and environmental protection aspects of natural aggregate resources and at the same time by formulating emulsion-based regeneration additives based on high sulfur heavy oil. And it is an object of the present invention to provide a reclaimed asphalt concrete composition with uniform strength, hardness, viscosity, stability, flexibility of pure asphalt concrete by vulcanization.
본 발명이 목적하고 있는 과제를 해결하기 위하여 채용하는 수단으로서, 아스팔트 콘크리트 조성물은 중량을 기준으로 하여 폐아스콘 순환골재 25wt%~95wt% 및 신골재 5wt%~75wt%로 이루어진 골재배합물 100중량부에 대하여 음이온계 유화아스팔트 0.5~6중량부, 채움재 0~5중량부, 에멀젼계 재생첨가제 0.3~6중량부를 포함하는 것으로 이루어진다.As a means to be employed to solve the object of the present invention, the asphalt concrete composition is based on the weight of waste aggregate 100wt% aggregate aggregate composed of 25wt% ~ 95wt% and new aggregate 5wt% ~ 75wt% It consists of 0.5-6 weight part of anionic emulsion asphalt, 0-5 weight part of fillers, and 0.3-6 weight part of emulsion regeneration additives.
본 발명의 아스팔트 콘크리트 조성물에 배합되는 폐아스콘 순환골재 및 신골재로 이루어진 골재배합물은 국토해양부의 고시에 따라 체거름을 통하여 아스팔트 도로의 기층용 또는 표층용으로 적합한 입도 및 배합비로 배합한 것이다.Aggregate mixture consisting of waste ascon circulating aggregate and new aggregate, which is blended into the asphalt concrete composition of the present invention, is formulated at a suitable particle size and blending ratio for the base layer or surface layer of the asphalt road through the sieving according to the notification of the Ministry of Land, Transport and Maritime Affairs.
또한, 본 발명의 특징 중 하나로서, 음이온계 유화아스팔트를 채용하는 구성은 유화아스팔트 중에서 양이온계와 비이온계 유화아스팔트를 단독 사용하는 경우 시멘트와 반응하여 응고가 되는 문제점이 있으므로 음이온계 유화아스팔트만을 사용함으로써 시멘트 응고에 대한 문제점을 해결하였을 뿐 아니라 물의 사용이 매우 적어 시멘트의 소모량을 현저하게 줄일 수 있을 뿐 아니라 동시에 고가의 리그닌계(Lignin)와 나프탈렌계(Naphthalene)의 첨가제들을 전혀 사용하지 않는다.In addition, as one of the characteristics of the present invention, the configuration employing the anionic emulsified asphalt has a problem in that when the cationic and nonionic emulsified asphalt are used alone in the emulsified asphalt, they react with the cement to solidify. Not only does it solve the problem of cement coagulation, but it also uses very little water, which significantly reduces the consumption of cement. At the same time, it does not use expensive additives of lignin and naphthalene.
음이온계 유화아스팔트의 제조는 신재아스팔트(스트레이트 아스팔트) 57~60중량부, 물 35~40중량부, 유화제 0.3~1.0중량부, KOH 0.2~0.5중량부 및 염화칼슘 0.2~0.5중량부를 배합하여 제조하는 것으로, 탱크에 온수(50~60℃)를 충전하고 유화제를 교반하면서 소량씩 첨가한 다음, KOH를 소량 첨가하여 pH가 6.0~8.0이 되도록 한 유화수를 아스팔트와 함께 콜로이드밀에 통과시켜 제조하며, 이때 유화제로는 카르복실산염, 도데실벤젠설폰산염, 알킬아릴 설포네이트, 고급지방산알카리금속염, 알킬벤젠설폰산염, 알파-올레핀설폰산염, 알킬아릴설폰산나트륨류, 알킬 인산염, 1-노닐-페녹시-2-폴리옥시-에틸렌-3-암모늄-설페이트, 소듐디옥틸설포숙시네이트 등이 있으며 이들 유화제 중 어느 것이나 사용이 가능하다.Anionic emulsion asphalt is prepared by combining 57 to 60 parts by weight of new asphalt (straight asphalt), 35 to 40 parts by weight of water, 0.3 to 1.0 parts by weight of emulsifier, 0.2 to 0.5 parts by weight of KOH, and 0.2 to 0.5 parts by weight of calcium chloride. Fill the tank with warm water (50 ~ 60 ℃) and add small amount with stirring the emulsifier, and then add small amount of KOH to make the pH of 6.0 ~ 8.0, and pass the colloid mill together with asphalt through the emulsified water. In this case, as the emulsifier, carboxylate, dodecylbenzene sulfonate, alkylaryl sulfonate, higher fatty acid alkali metal salt, alkylbenzene sulfonate, alpha-olefin sulfonate, alkylaryl sulfonate, alkyl phosphate, 1-nonyl- Phenoxy-2-polyoxy-ethylene-3-ammonium sulfate, sodium dioctylsulfosuccinate, and the like, and any of these emulsifiers can be used.
또 채움재는 상기 골재배합물 및 유화아스팔트의 배합량에 따라 아스팔트의 물성보강을 위하여 필요에 따라 배합하며, 채움재의 종류로는 시멘트, 플라이애쉬, 석분 및 제강더스트 중에서 선택한 하나 이상의 성분을 배합한다.In addition, the filler is blended as necessary for the reinforcement of the physical properties of the asphalt according to the blending amount of the aggregate mixture and the emulsified asphalt, and the type of filler is blended with at least one component selected from cement, fly ash, stone powder and steelmaking dust.
그리고 본 발명의 또 다른 특징 중의 하나인 고유황 중유를 주요성분으로 하는 에멀젼계 재생첨가제는 고유황 중유(A성분)에, 파라핀유, 아로마틱유, 나프텐유 및 아크릴폴리머로부터 선택된 하나 이상의 성분(B성분)을 혼합하여 이루어지며, 고유황 중유 0.1~ 10중량부(A성분)에, 파라핀유 10~20중량부, 아로마틱유 10~20중량부 및 나프텐유 10~20중량부로부터 선택되는 하나 이상의 성분(B성분)을 혼합하는 것이 바람직하고, 채움재로 시멘트를 사용하는 경우에는 고유황 중유(A성분) 0.1~ 10중량부에 아크릴폴리머(B성분) 10~20중량부로 배합하여 사용하는 것이 바람직하다.In addition, one or more components (B) selected from paraffin oil, aromatic oil, naphthenic oil, and acrylic polymer in high-sulfur heavy oil (component A), which is an essential oil-based sulfur heavy oil, which is another feature of the present invention At least one selected from 0.1 to 10 parts by weight of high sulfur heavy oil (component A), 10 to 20 parts by weight of paraffin oil, 10 to 20 parts by weight of aromatic oil, and 10 to 20 parts by weight of naphthenic oil. It is preferable to mix component (component B), and when using cement as a filler, it is preferable to mix | blend 10-20 weight part of acrylic polymers (component B) with 0.1-10 weight part of high sulfur heavy oil (component A). Do.
상기한 본 발명에서 재생첨가제의 성분으로 배합하고 있는 고유황 중유는 원유를 증류할 때 경유 다음으로 얻어지는 유분으로 유황이 1~4wt% 정도 함유되어 있으며, 중유는 폐아스팔트에서 부족한 성분을 보충하여 아스팔트의 물성을 복원하는 작용을 할 뿐 아니라 중유에 함유된 유황성분의 가황작용에 의해 아스팔트의 물성을 더욱 개선시키는 작용을 하며, 파라핀유, 아로마틱유 및 나프텐유는 원유를 증류할 때 아스팔트가 추출되기 전 단계에서 얻어지는 여러 종류의 탄화수소화합물이 혼합된 혼합물 형태의 유분으로, 폐아스팔트에 작용하여 노화된 성분의 보충 및 아스팔트의 물성을 복원하는 작용을 하며, 현재 정유회사에서 기유로 사용하기 위하여 상업적으로 생산하고 있는 성분들이다. 또한, 아크릴폴리머 역시 폐아스팔트에서는 부족한 물성을 보충할 뿐 아니라 아스팔트 콘크리트의 배합시 작업성도 향상시키는 작용을 하는 성분으로 널리 알려진 공지의 고분자 화합물이다.The high-sulfur heavy oil blended as a component of the regeneration additive in the present invention is obtained by distilling crude oil, followed by light oil, containing about 1 to 4 wt% of sulfur, and the heavy oil supplemented with insufficient components in the waste asphalt. In addition to restoring the physical properties of the oil, as well as to improve the physical properties of the asphalt by the vulcanization action of the sulfur contained in heavy oil, paraffin oil, aromatic oil and naphthenic oil is extracted when distilling crude oil. It is a mixture of various hydrocarbon compounds obtained in the previous stage, and it acts on waste asphalt to replenish aging components and to restore the physical properties of asphalt. The ingredients they produce. In addition, the acrylic polymer is a well-known polymer compound that is widely known as a component that not only compensates for the lack of physical properties in waste asphalt, but also improves workability when mixing asphalt concrete.
본 발명의 고유황 중유를 주요성분으로 하는 에멀젼계 재생첨가제의 제조는 통상의 유화방법에 따라 유화시킨 에멀젼 상태이며, 음이온성 유화제를 사용하는 것이 특히 바람직하고, 본 발명의 고유황 중유를 주요성분으로 하는 에멀젼계 재생첨가제의 주요성상을 아래 [표 1]에 제시하였다.The preparation of an emulsion-based regeneration additive having the high sulfur heavy oil of the present invention as a main component is an emulsion state emulsified according to a conventional emulsification method, and it is particularly preferable to use an anionic emulsifier, and the high sulfur heavy oil of the present invention is a main component. The main characteristics of the emulsion-based regeneration additive is shown in Table 1 below.
본 발명은 폐아스콘을 순환골재로 재활용하는 장점과 고유황 중유를 주성분으로 하는 에멀젼계 재생첨가제를 배합하여 노화된 아스팔트 성상(물성)의 복원 및 가황작용으로 순수의 아스팔트 콘크리트가 갖고 있는 강도, 경도, 점성도, 안정도, 유연성을 고루 갖춘 재생 아스팔트 콘크리트 조성물의 제조가 가능할 뿐 아니라 도로포장 및 바닥포장 시에 작업성에 있어서도 순수 아스팔트 콘크리트와 대등한 효과를 나타낸다.The present invention has the strength and hardness of pure asphalt concrete by restoring and vulcanizing the aged asphalt properties (physical properties) by combining the recycling of waste ascon with recycled aggregates and an emulsion-based additive based on high sulfur heavy oil. It is not only possible to manufacture recycled asphalt concrete composition with high viscosity, stability, and flexibility, but also has the same effect as pure asphalt concrete in workability during road paving and floor paving.
본 발명에 따른 폐아스팔트 콘크리트 및 재생첨가제를 포함하는 아스팔트 콘크리트 조성물은 도로의 기층용 및 표층용에 공통적으로 적용할 수 있는 아스팔트 콘크리트 조성물로서 본 발명의 도로포장용 아스팔트 콘크리트 조성물의 제조에 사용하는 골재배합물은 국토해양부의 고시에 따라 도로포장용의 기층용 및 표층용 혼합물의 입도 및 표준배합비로 배합한 것이다.Asphalt concrete composition comprising waste asphalt concrete and regeneration additive according to the present invention is an asphalt concrete composition which can be commonly applied to base and surface layers of roads, and aggregates used in the manufacture of asphalt concrete compositions for road pavement of the present invention. According to the Ministry of Land, Transport and Maritime Affairs, the mixture is based on the particle size and the standard blending ratio of the ground and surface mixtures for road paving.
국토해양부의 고시에 따른 도로포장용의 기층용 및 표층용 골재혼합물의 입도 및 표준배합비는 아래 [표 2], [표 3]에 나타낸 바와 같다.The particle size and standard blending ratio of the base and surface aggregate aggregates for road pavement according to the Ministry of Land, Transport and Maritime Affairs are as shown in the following [Table 2] and [Table 3].
<원재료별 배합><Mixing by raw material>
본 발명의 도로포장용 아스팔트 콘크리트의 원재료의 구체적인 배합비율은 상기한 기층용 또는 표층용 표준배합비에 의해 폐아스콘 순환골재 850㎏ 및 신골재 80㎏을 배합한 골재배합물에, 시멘트 28㎏, 플라이애쉬 12㎏, 음이온계 유화아스팔트 20㎏ 및, 고유황 중유(A성분):아로마틱유 및 나프텐유(B성분)를 중량비로 1:100비율로 혼합한 에멀젼계 고유황 중질유 폐아스콘 재생첨가제 10㎏을 배합하여 균일하게 혼합하여 기층용과 표층용의 전체배합물 1000kg(1ton)을 각각 얻었다.Concrete mixing ratio of the raw materials of the asphalt concrete for road pavement of the present invention is the aggregate mixture of 850kg waste asphalt concrete aggregate 850kg and 80kg fresh aggregate by the above standard or base layer standard mixing ratio, cement 28kg, fly ash 12 10 kg of anionic emulsified asphalt and high oil sulfur heavy oil (component A): 10 kg of emulsion-based high sulfur heavy oil waste ascon regenerated additive mixed with aromatic oil and naphthenic oil (component B) in a weight ratio of 1: 100. The mixture was uniformly mixed to obtain 1000 kg (1 ton) of the total mixture for the base layer and the surface layer.
상기에서 기층용과 표층용 배합물은 폐아스콘 순환골재 및 신골재를 표준배합비에 따라 배합되는 차이만 있다.In the above formulation for base and surface layers, there is only a difference that the waste ascon recycled aggregates and new aggregates are formulated according to the standard blending ratio.
본 발명에 따라 제조한 폐아스콘 조성물에 대하여 품질시험과 검사성적을 한 결과 [표 4], [표 5]와 같은 우수한 성능의 결과를 도출하였다.As a result of the quality test and the test results for the waste ascon composition prepared according to the present invention, the excellent performance results were obtained as shown in [Table 4] and [Table 5].
Claims (8)
The asphalt concrete composition according to claim 1, wherein the filler is cement, and the emulsion-based regeneration additive is made by mixing 20 parts by weight of acrylic polymer (component B) with 0.1 parts by weight of high sulfur heavy oil (component A).
The method of claim 7, wherein the emulsion-based regeneration additive is at least one selected from 10 to 20 parts by weight of paraffin oil, 10 to 20 parts by weight of aromatic oil and 10 to 20 parts by weight of naphthenic oil in 0.1 to 10 parts by weight of high sulfur heavy oil (component A). Asphalt concrete composition, characterized by mixing the component (component B).
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