KR101141259B1 - A environmentally-friendly cold recyclable aspalt concrete recycled by waste-aspalt concrete, waste-concrete - Google Patents
A environmentally-friendly cold recyclable aspalt concrete recycled by waste-aspalt concrete, waste-concrete Download PDFInfo
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- KR101141259B1 KR101141259B1 KR20110116457A KR20110116457A KR101141259B1 KR 101141259 B1 KR101141259 B1 KR 101141259B1 KR 20110116457 A KR20110116457 A KR 20110116457A KR 20110116457 A KR20110116457 A KR 20110116457A KR 101141259 B1 KR101141259 B1 KR 101141259B1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
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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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
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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
Abstract
Description
본 발명은 폐아스콘 및 폐콘크리트를 함유하는 도로포장용 친환경성 상온 재생포장재 조성물에 관한 것으로 보다 구체적으로는 순환골재로 폐아스콘과 폐콘크리트를, 경화제로 포트랜트 시멘트, 고로슬래그 및 생석회를, 채움재로 폐콘크리트 석분, 고로 플라이애쉬를, 유화제로 계면활성제와 고분자 개질제를, 그리고 재생첨가제로 유화아스팔트와 결합제인 EVA(Ethlyene Vinyl Acetate) 및 EMMA(Ethyl Methyl Metacylate)가 포함된 폐아스콘 및 폐콘크리트를 재활용한 친환경성 상온 재생포장재 조성물에 관한 것으로 상기의 상온 재생포장재 조성물은 상온에서도 포장이 가능하며, 또한, 노화된 아스팔트의 물성을 복원하는 각 조성 성분들의 복합적 작용에 의해 강도나 경도, 안정도 및 유연성 등이 신규 아스팔트 콘크리트 조성물과 동등한 수준을 갖는 도로포장용 친환경성 상온재생 포장재 조성물에 관한 것이다.The present invention relates to an environment-friendly room temperature regenerated packaging composition for road pavement containing waste ascon and waste concrete. More specifically, waste ascon and waste concrete as recycled aggregate, port cement, blast furnace slag and quicklime as a hardener, Recycled waste asphalt and waste concrete containing waste concrete powder, blast furnace fly ash, emulsifiers, surfactants and polymer modifiers, and recycled additives containing emulsified asphalt and binders (Ethlyene Vinyl Acetate) and EMMA (Ethyl Methyl Metacylate) The environmentally friendly room temperature regenerated packaging material composition described above can be packaged at room temperature, and the composition of strength, hardness, stability and flexibility by the combined action of each component that restores the properties of aged asphalt. For road pavement with the same level as this new asphalt concrete composition It relates to an environment-friendly room temperature regeneration packaging material composition.
도시 발전과 산업화에 따라 발생되는 건설폐기물은 다양한 종류가 있으며, 그 중 시멘트 콘크리트나 아스팔트 콘크리트가 가장 큰 비중을 차지하고 있다. 이와 같은 폐아스콘이나 폐콘크리트가 다량 발생하는 이유는 교통량의 증가에 따라 아스팔트 포장의 경우 소성 변형이 일어나 차량 주행 등에 심각한 문제점이 노출되어 이를 제거하는 경우와 시간의 경과에 따라 포장 재료가 점차 노화되어 균열이 발생되는 경우 등으로 이때 도로의 하부구조를 보호하기 위하여 표층을 절삭하거나 도로포장을 해체함에 따라 다량의 폐아스콘이 발생하고 있다.There are various kinds of construction wastes generated by urban development and industrialization, and cement concrete and asphalt concrete take the largest portion. The reason for such large amount of waste ascon or waste concrete is that plastic pavement occurs in the asphalt pavement due to the increase of traffic, which causes serious problems such as vehicle driving. In this case, a large amount of waste ascon is generated by cutting the surface layer or dismantling the pavement in order to protect the substructure of the road.
폐아스콘이나 폐콘크리트의 용도별 재활용을 보면 95.2% 정도가 성토용 또는 복토용 및 뒤채움용으로 재활용되었으며, 4.8%가 도로보조기층용, 노상용, 노체용 등으로 재활용되고 있는 실정으로 성토나 복토로 사용된 이들 폐아스콘이 매립지로부터 빗물 등에 의해 씻겨 나온 아스팔트나 잔류시멘트가 지층으로 흘러들어가 지하수와 하천을 오염시키는 등 환경오염의 주요 원인으로 작용하고 있어 재활용이 가능한 폐아스콘 등의 폐자재는 매립을 줄여야 한다는 사회적 요구가 제기되고 있다.
According to the recycling of waste ascon or waste concrete, 95.2% is recycled for fill, cover, and backfill, and 4.8% is recycled for road auxiliary layer, roadbed, and roadbed. As these waste ascons are used as main causes of environmental pollution, such as asphalt or residual cement washed out from landfills by rainwater, and contaminate groundwater and rivers, waste materials such as recycled waste ascons should be reduced. There is a social demand.
따라서 선진국에서는 다량으로 발생되는 폐아스콘을 재활용함으로써 자원의 재활용은 물론 환경오염을 줄이면서 한편으로는 폭발적으로 늘어나는 아스팔트의 수요량을 대체할 수 있는 대안으로 주목받으면서 재생 아스콘에 대한 연구가 활발히 진행되어 실용화에 접어들었으며, 우리나라에서도 토목, 건축분야를 중심으로 폐아스콘의 재활용에 관한 연구가 활발하게 진행되고 있고, 국가적 차원에서도 폐기되는 폐아스콘의 재활용을 위하여 폐아스콘을 지정부산물로 선정하고, “건설폐기물의 재활용촉진에 관한 법률” 및 “순환골재 품질기준”을 두어 고품질을 유지하면서 재활용률을 높이기 위한 노력을 경주하고 있다. 그러나 폐아스콘의 경우 복원력의 저하나 노화 현상이 신규 아스콘에 비하여 빨라, 업계에서는 부정적인 시각이 여전하여 그 이용률은 선진국에 비하여 미미한 실정이다.
Therefore, advanced economies are actively researching recycled ascons as they are attracting attention as an alternative to replace the explosive demand of asphalt by reducing recycled resources and environmental pollution by recycling waste ascons generated in large quantities. In Korea, research on the recycling of waste ascons has been actively conducted in the civil and construction sectors in Korea, and waste ascons are designated as designated by-products for the recycling of waste ascons that are discarded at the national level. The Act on the Promotion of Waste Recycling ”and the“ Circulation Aggregate Quality Standard ”are in place to improve the recycling rate while maintaining high quality. However, in the case of waste ascon, the deterioration of resilience or aging is faster than that of new ascon, and there is still a negative view in the industry, and its utilization rate is insignificant compared to that of developed countries.
한편, 최근에는 생산공정이나 시공 중에 naphtha나 kerosene을 사용하는 컷백 아스팔트와 같이 골재와 아스팔트 바인더를 가열하지 않음으로써 시공이 빠르고, 환경오염물질을 생성하지 않는 환경친화적인 상온 재생아스콘의 개발이 활발하게 연구되고 있으나, 일반적으로 상온 재생아스팔트 혼합물은 가열 재생아스팔트 혼합물에 비해 내구성이나 수분민감성에서 미흡한 단점이 있다.
On the other hand, in recent years, the construction process is fast by not heating aggregates and asphalt binders such as cutback asphalt using naphtha or kerosene during the production process or construction, and the development of environmentally friendly room temperature recycled ascon which does not generate environmental pollutants is actively developed. Although being studied, in general, room temperature recycled asphalt mixtures have a disadvantage in durability and water sensitivity compared to heated recycled asphalt mixtures.
이에 따라 대한민국 특허등록 제10-0599492호에서는 유화아스팔트를 사용하지 않고, 부피팽창제, 지수제, 경화촉진제 및 유동성 혼화제를 함유하는 페아스콘을 활용한 반강성 포장용 조성물이 개시되어 있으나, 상기의 발명은 지수제 등의 사용에 따라 충분한 경화가 일어나지 않아 아스팔트의 내구성이나 탄성이 저하되는 문제점이 발생할 우려가 있다. Accordingly, Korean Patent Registration No. 10-0599492 discloses a semi-rigid packaging composition using a peascon which does not use an emulsified asphalt and contains a volume expanding agent, an indexing agent, a curing accelerator, and a fluid admixture. There is a possibility that a problem that the durability and elasticity of the asphalt is deteriorated due to insufficient curing does not occur according to the use of the index agent.
또한, 대한민국 공개특허공보 제10-2011-26038호에서는 재생개질제로 유연제, 탄성체, 점증제, 박리방지제, 무기분말 및 단섬유 중에서 하나 이상과 중온 첨가제로 수화제, 왁스 및 발포제 중 하나 이상을 함유하는 온도조정 개질 재생아스콘의 조성물이 개시되어 있으나, 제조공정이 복잡하며, 내구성이나 수분 민감성에 대한 문제점을 고려하고 있지 못하였다.In addition, Korean Patent Publication No. 10-2011-26038 discloses one or more of a softener, an elastomer, a thickener, an anti-peeling agent, an inorganic powder, and short fibers as a regeneration modifier, and one or more of a hydrating agent, a wax, and a foaming agent as a medium temperature additive. Although the composition of the temperature-controlled modified recycled ascone has been disclosed, the manufacturing process is complicated, and problems with durability or moisture sensitivity have not been considered.
대한민국 특허등록 제10-0867097호에서는 음이온계 유화아스팔트와 골재와 골재 사이에서 망상구조를 형성하여 공극을 채우고 접착력과 인장강도를 증가시키기 위하여 아크릴폴리머를 함유하는 포장용 아스팔트 콘크리트가 개시되고, 대한민국 특허등록 제10-0946588호에서 폐아스콘, 신골재, 채움재, 유화아스팔트 및 재생첨가재를 포함하는 재생아스팔트 콘크리트 혼합물이 개시되어 있으나, 상기의 재생첨가제는 중 파라핀 증류액, 비투멘(Bitumen) 및 미네랄 피치(Mineral Pitch) 등을 사용하고 있어 비가열에 따른 순환골재와 시멘트의 결합력이 저하될 우려가 있다.
Korean Patent Registration No. 10-0867097 discloses pavement asphalt concrete containing acrylic polymer to fill an air gap and increase adhesion and tensile strength by forming a network structure between anionic emulsified asphalt and aggregate and aggregate. No. 10-0946588 discloses recycled asphalt concrete mixtures comprising waste ascone, new aggregates, fillers, emulsified asphalt and recycled additives, although the recycled additives are heavy paraffinic distillate, bitumen and mineral pitch ( Mineral Pitch) is used to reduce the binding strength of the recycled aggregate and cement due to unheating.
본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위하여 재생포장재 조성물에 생석회를 사용함으로써 생석회가 물과 반응시 발생하는 반응열에 의해 직접적으로 열을 가하지 않아도 가열아스팔트와 동등한 물성을 유지할 수 있으며, 또한, 채움재로 폐아스콘 및 폐콘크리트 석분과 고로 플라이애쉬를 사용함으로써 이들 채움재 중 폐아스콘 및 폐콘크리트 석분은 본 발명의 순환골재와 서로 친화적이며, 또한, 고로 플라이애쉬는 고로 슬래그와 서로 친화적이어서 순환골재와 채움재 간의 공극률을 낮추고, 밀도를 높이며, EVA 및 EMMA가 1 : 1의 비율로 혼합된 결합제를 사용함으로써, 노화된 아스팔트의 물성을 복원하여 강도나 경도, 점성도, 안정도 및 유연성 등이 뛰어난 상온 재생포장재 조성물을 제공하는 데 있다.The present invention by using the quicklime in the recycled packaging composition to solve the problems of the prior art as described above, it is possible to maintain the physical properties equivalent to the heating asphalt, even if the quicklime is not directly heated by the reaction heat generated when reacting with water, By using waste ascon and waste concrete powder and blast furnace fly ash as a filling material, the waste ascon and waste concrete powder among these filling materials are mutually friendly with the circulating aggregate of the present invention, and the blast furnace fly ash is mutually friendly with the blast furnace slag, so it is recycled aggregate. By reducing the porosity between the filler and filler, increasing the density, and using a binder mixed with EVA and EMMA in a ratio of 1: 1, it restores the physical properties of the aged asphalt, thereby regenerating at room temperature with excellent strength, hardness, viscosity, stability, and flexibility. It is to provide a packaging composition.
본 발명은 상기와 같은 목적을 달성하기 위하여 폐아스콘 및 폐콘크리트 100중량부에 대하여 포틀랜트 시멘트와 고로슬래그 및 생석회가 1 : 1 : 1의 비율로 혼합된 경화제 5 내지 20중량부와 폐콘크리트 석분 및 고로 플라이애쉬가 1 : 1의 비율로 혼합된 채움재 10 내지 15중량부, 유화제 2 ~ 4중량부, 재생첨가제인 유화아스팔트 5중량부, EVA(Ethlyene Vinyl Acetate) 와 EMMA(Ethyl Methyl Metacylate)를 1 : 1의 비율로 혼합한 결합제 5중량부 및 사용수 20 내지 40중량부로 이루어진 상온 재생포장재 조성물로, 상기의 생석회는 석회석을 고온에서 소성하여 분쇄한 것으로 생석회가 물과 혼합시 열을 발생하므로 가열이 필요 없어 상온재생 아스팔트의 제조에 적합하며, 또한, 생석회가 폐아스콘의 팽창이나 수축을 방지할 수 있고, 결합제인 EVA(Ethlyene Vinyl Acetate) 및 EMMA(Ethyl Methyl Metacylate)를 사용함으로써, 이들 결합제는 폐아스콘과 작용하여 아스팔트의 물성을 복원할 뿐 아니라, 폐아스콘의 노화된 성분의 물성을 회복시키고 배합시 순환골재의 공극률을 줄이는 역할을 하고 있다.In order to achieve the above object, 5 to 20 parts by weight of a curing agent mixed with portland cement, blast furnace slag and quicklime in a ratio of 1: 1: 1 with respect to 100 parts by weight of waste ascon and waste concrete and waste concrete lime powder 10 to 15 parts by weight of the filling material mixed with blast furnace fly ash in a ratio of 1: 1, 2 to 4 parts by weight of emulsifier, 5 parts by weight of emulsified asphalt, which is a regeneration additive, EVA (Ethlyene Vinyl Acetate) and EMMA (Ethyl Methyl Metacylate) It is a room temperature recycled packaging composition consisting of 5 parts by weight of the binder mixed in a ratio of 1: 1 and 20 to 40 parts by weight of water used, wherein the quicklime is pulverized by calcining limestone at a high temperature, so the quicklime generates heat when mixed with water. It is suitable for the production of room temperature reclaimed asphalt because it does not require heating, and quicklime can prevent the expansion or contraction of waste ascone, and it is EVA (Ethlyene Vinyl Acetate) and EMMA (Ethyl Methy) binders. By using Metacylate, these binders work with waste ascon to restore the physical properties of asphalt, as well as to restore the physical properties of the aged components of waste ascon and to reduce the porosity of recycled aggregates during blending.
본 발명의 친환경성 상온 재생포장재 조성물은 가열하지 않고 포장시공이 가능하여 포장공사 후 신속한 교통개방이 가능할 뿐만 아니라, 노화된 성분의 물성을 복원하며, 순환골재의 공극률을 줄여 고밀도를 유지하므로 폐아스콘의 팽창이나 수축을 방지할 수 있어 도로포장의 심각한 문제점인 소성변형 및 피로균열을 방지하는데 효과가 있다.
Environmentally friendly room temperature regenerated packaging composition of the present invention can be paved without heating to enable rapid traffic opening after packaging work, restore the physical properties of the aging components, and maintain high density by reducing the void ratio of the recycled aggregate waste asphalt It can prevent the expansion and contraction of the pavement is effective in preventing plastic deformation and fatigue cracking which is a serious problem of pavement.
본 발명에 따른 폐아스콘 및 폐콘크리트를 재활용한 상온 재생포장재 조성물의 조성비 및 조성성분들을 구체적으로 설명한다.The composition ratio and composition components of the recycled packaging material composition at room temperature recycled waste ascon and waste concrete according to the present invention will be described in detail.
본 발명의 순환골재는 폐아스콘 및 폐콘트리트를 조크러셔로 1차 파쇄한 후 다시 임팩트크러셔로 2차 파쇄하여 분쇄물에 혼합되어 있는 토사나 철근 나무, 유리 등을 분리 제거하여 체거름의 분급공정을 거쳐 국토해양부의 건설폐자재 재활용 지침에서 규정하고 있는 [표 1]에 적합하도록 분쇄한다.
The circulating aggregate of the present invention is the primary crushing waste ascon and waste concrete with a jaw crusher and then second crushed again with an impact crusher to separate and remove the sediment, reinforcement wood, glass, etc. mixed in the pulverized sieve sifting process The waste is crushed to comply with [Table 1] prescribed by the Ministry of Land, Transport and Maritime Affairs.
치수
입도종류Sieve designation
size
Granularity
통 과 중 량 백 분 율 (%)
Passage weight percentage (%)
* RSB: 보조기층용 순환골재
* RSB: recycled aggregate for subbase
본 발명의 순환골재의 품질 및 합성비율은 상기의 건설폐자재 재활용 지침에서 규정하고 있는 [표 2]에 만족하였다.
The quality and composition ratio of the recycled aggregate of the present invention was satisfied with [Table 2] prescribed in the construction waste recycling guide.
본 발명에서는 포틀랜트 시멘트와 고로슬래그 및 생석회가 1 : 1 : 1의 비율로 혼합한 경화제를 사용한다. 고로슬래그의 사용량이 많으면 다짐밀도 및 압축강도는 증가하나 동절기에 결빙현상이 나타날 우려가 있어 혼합비율은 포틀랜트 시멘트 및 생석회와 동일한 비율로 배합하는 것이 바람직하다. 생석회는 석회석을 1,100 ~ 1,300℃에서 소성한 것으로 이를 화학 반응식으로 나타내면 아래와 같다.In the present invention, a curing agent in which portland cement, blast furnace slag and quicklime are mixed in a ratio of 1: 1: 1 is used. The use of blast furnace slag increases the compaction density and compressive strength, but there is a risk of freezing during the winter. Therefore, the mixing ratio is preferably the same as that of portland cement and quicklime. Quicklime is calcined limestone at 1,100 ~ 1,300 ℃, which is represented by the chemical reaction equation as follows.
CaCO3 → CaO + CO2 CaCO 3 → CaO + CO 2
본 발명에서는 상기와 같이 생석회를 첨가함으로써, 폐아스콘의 팽창이나 수축을 방지하며, 물과 혼합 시 발생한 열에 의해 가열 재생아스팔트와 동일한 효과를 얻을 수 있어 종래의 상온재생 아스팔트 혼합물이 가열재생 아스팔트 혼합물에 비해 내구성이나 수분민감성에서 미흡한 점을 개선하였다. In the present invention, by adding quicklime as described above, the expansion and contraction of the waste ascon is prevented, and the same effect as the heated regenerated asphalt is obtained by the heat generated when mixing with water, so that the conventional room temperature regenerated asphalt mixture is applied to the hot regenerated asphalt mixture. Compared with the improvement in durability and water sensitivity.
본 발명에서는 600㎛(NO.30)체 100% 통과 및 75㎛(NO.200)체 70% 이상 통과한 입도를 갖는 폐아스콘(및 폐콘크리트)석분과 고로 플라이애쉬가 1 ~ 3 : 0.5 ~ 2의 비율로 혼합된 채움재가 사용된다. 채움재는 골재 간극(間隙)을 채워 안정도(Stability)를 높이고, 아스팔트와 혼합된 아스팔트 페이스트(Asphalt paste 또는 filler bitumen)상태로 골재를 피복하여 감온성을 적게 하며, 아스팔트의 점성을 개선하는 등 아스팔트의 물성보강을 위하여 필요한 것으로 본 발명에서는 폐아스콘 및 폐콘크리트 석분과 고로 플라이애쉬를 사용함으로써 이들 채움재 중 폐아스콘 및 폐콘크리트 석분은 본 발명의 순환골재와 서로 친화적이며, 또한, 고로 플라이애쉬는 고로 슬래그와 서로 친화적이어서 순환골재와 채움재 간의 공극률이 타 채움재에 비하여 현저히 감소하는 효과를 얻을 수 있다.
In the present invention, waste ascone (and waste concrete) stone powder and blast furnace fly ash having a particle size of 100% passing through 600 μm (NO.30) and 70% or more passing through 75 μm (NO.200) are 1-3. Fillers mixed in the ratio of 2 are used. Filler fills the gap between aggregates to improve stability, and to cover aggregates in asphalt paste (asphalt paste or filler bitumen) mixed with asphalt to reduce the temperature sensitivity and improve the viscosity of asphalt. In the present invention, waste ascon and waste concrete powder and blast furnace fly ash are used for reinforcement, and the waste ascon and waste concrete powder among these filling materials are mutually friendly with the circulating aggregate of the present invention, and the blast furnace fly ash is blast furnace slag and Since they are friendly to each other, the porosity between the circulating aggregate and the filler can be significantly reduced compared to other fillers.
본 발명에서는 유화제로 양이온 계면활성제, 음이온 계면활성제, 비이온 계면활성제, 양쪽성 계면활성제 중 1종 또는 2종 이상을, 그리고 고분자 개질제로 SBS(Styrene Butadiene Styrene) 또는 SBR(Styrene butadiene rubber)을 포함하고 있다.In the present invention, one or two or more of cationic surfactants, anionic surfactants, nonionic surfactants and amphoteric surfactants are used as emulsifiers, and SBS (Styrene Butadiene Styrene) or SBR (Styrene butadiene rubber) as a polymer modifier. Doing.
또한, 본 발명은 재생 첨가제인 유화 아스팔트와 결합제인 EVA 및 EMMA를 1 : 1의 비율로 혼합함을 특징으로 한다.In addition, the present invention is characterized by mixing the emulsified asphalt of the recycle additive and EVA and EMMA of the binder in a ratio of 1: 1.
유화아스팔트란 상온에서 고체 또는 반고체 상태의 직류아스팔트를 가열하지 않고 상온에서 사용할 수 있도록 아스팔트를 미립으로 제조하여 물과 아스팔트가 분리되지 않도록 유화제를 가해 고속으로 혼련시켜 물속에서 분산시킨 것으로 본 발명의 유화아스팔트는 음이온계 계면활성제인 황산에스테르염으로 유화시킨 유화아스팔트이다. Emulsified asphalt is emulsified according to the present invention by kneading at high speed by adding an emulsifier so as not to separate water and asphalt so that asphalt can be granulated so that it can be used at room temperature without heating solid or semi-solid DC asphalt at room temperature. Asphalt is an emulsified asphalt which is emulsified with sulfate ester salt which is an anionic surfactant.
결합제로는 EVA 및 EMMA를 1 : 1의 비율로 조성된 혼합을 사용한다.As the binder, a mixture of EVA and EMMA in a ratio of 1: 1 is used.
상기의 결합제 중 EVA는 Ethylene과 Vinyl Acetate의 공중합체이고, EMMA는 Ethyl과 Methyl의 Metacylate 공중합체로 이들 공중합체를 1 : 1의 비율로 혼합한 결합제는 폐아스콘의 노화된 성분의 물성을 복원하고 배합시 순환골재의 공극률을 줄이는 역할을 한다.Among the above binders, EVA is a copolymer of Ethylene and Vinyl Acetate, EMMA is a Metacylate copolymer of Ethyl and Methyl, and the binder mixed with these copolymers in a ratio of 1: 1 restores the properties of the aged components of the waste ascone. When blending, it serves to reduce the porosity of recycled aggregate.
이하는 본 발명의 구체적인 실시예를 들어 설명하지만, 본 발명은 하기 실시예에 한정되는 것은 아니다.
Hereinafter, although the specific Example of this invention is described and described, this invention is not limited to the following Example.
실시예 1Example 1
폐아스팔트 콘크리트를 분쇄하여 80mm, 40mm, 20mm, 5mm, 2.5mm, 0.4mm, 0.08mm 체에 순차적으로 통과시켜 입도별로 분류한 순환골재 100중량부와 포틀랜트 시멘트와 고로슬래그 및 생석회가 1 : 1 : 1의 비율로 혼합된 경화제 10중량부, 600㎛(NO.30)체 100% 통과 및 75㎛(NO.200)체 70% 이상 통과한 입도를 갖는 폐아스콘(및 폐콘크리트)석분과 고로 플라이애쉬가 1 : 1의 비율로 혼합된 채움재 10중량부, 음이온 계면활성제와 SBS가 1 : 1로 혼합된 유화제 3중량부, 재생첨가제인 유화아스팔트 5중량부와 EVA와 EMMA가 1 : 1의 비율로 혼합한 결합제 5중량부 및 사용수 20중량부를 혼합하여 폐아스콘 조성물을 제조한 후 균일한 입도분포와 농도를 위하여 잘 혼련 배합한다.
100 parts by weight of circulating aggregate, portland cement, blast furnace slag and quicklime are pulverized asphalt concrete, and then passed through 80mm, 40mm, 20mm, 5mm, 2.5mm, 0.4mm, 0.08mm sieve in order. : Waste ascone (and waste concrete) stone powder and blast furnace having 10 parts by weight of a curing agent mixed at a ratio of 1, 100% of 600 µm (NO.30) sieve, and 70% of 75 µm (NO.200) sieve 10 parts by weight of the filling material mixed with fly ash in a ratio of 1: 1, 3 parts by weight of an emulsifier mixed with anionic surfactant and SBS 1: 1, 5 parts by weight of emulsified asphalt, which is a regeneration additive, and EVA and EMMA of 1: 1 After mixing 5 parts by weight of the binder and 20 parts by weight of water used to prepare the waste ascon composition, the mixture is mixed well for uniform particle size distribution and concentration.
실시예 2Example 2
포틀랜트 시멘트와 고로슬래그 및 생석회가 1 : 1 : 1의 비율로 혼합된 경화제 15중량부, 음이온 계면활성제와 SBR이 1 : 1로 혼합된 유화제 3중량부를 사용한 것을 제외하고는 실시예 1과 동일하게 제조하였다.
Same as Example 1, except that 15 parts by weight of a curing agent mixed with portland cement, blast furnace slag and quicklime in a ratio of 1: 1, and 3 parts by weight of an emulsifier mixed with anionic surfactant and SBR 1: 1. To make.
실시예 3Example 3
폐아스팔트 콘크리트를 분쇄하여 40mm, 20mm, 5mm, 2.5mm, 0.4mm, 0.08mm 체에 순차적으로 통과시켜 입도별로 분류한 순환골재와 유화제로 양이온계 계면활성제와 SBS가 1 : 1로 혼합된 유화제 3중량부를 사용한 것을 제외하고는 실시예 1과 동일하게 제조하였다.
Emulsifier mixed with cationic surfactant and SBS 1: 1 by circulating aggregate and emulsifier, which is pulverized waste asphalt concrete and passed through 40mm, 20mm, 5mm, 2.5mm, 0.4mm, 0.08mm sieve sequentially. It was prepared in the same manner as in Example 1 except that parts by weight were used.
비교예 1 Comparative Example 1
경화제로 포틀랜트 시멘트와 고로슬래그를 사용하였고, 결합제로 MMA(Methylmethacrylate)를 사용한 것을 제외하고는 실시예 1과 동일하게 제조하였다.
Portland cement and blast furnace slag were used as a curing agent, and the same preparation as in Example 1 was performed except that MMA (Methylmethacrylate) was used as the binder.
비교예 2Comparative Example 2
결합제로 BAM(Buthylacrylate monomer)를 사용한 것을 제외하고는 비교예1 과 동일하게 제조하였다.
Except that BAM (Buthylacrylate monomer) was used as a binder was prepared in the same manner as in Comparative Example 1.
실시예와 비교예에 따른 각각의 상온 재생 아스콘의 마샬 안정도, 공극률, 밀도에 대한 시험결과는 [표 3]과 같다.
Test results for Marshall stability, porosity, and density of each room temperature regenerated asphalt concrete according to the Examples and Comparative Examples are shown in Table 3.
상기 [표 3]에서 알 수 있는 바와 같이, 본 발명의 실시예와 같이 제조한 상온 재생포장재 조성물의 경우 비교예에 비하여 마샬 안정도나 공극률 및 밀도 등이 기준값에 비하여 매우 우수한 것으로 확인되었다.
As can be seen in Table 3, it was confirmed that Marshall stability, porosity, density, and the like of the room temperature regenerated packaging material composition prepared in the Examples of the present invention were very superior to the reference value compared to the comparative example.
Claims (8)
Cement and blast furnace slag and quicklime are mixed in a ratio of 1: 1 to 1: 5 parts by weight of hardener, waste concrete, lime powder and blast furnace fly ash, in a ratio of 1: 1, based on 100 parts by weight of waste ascone purified aggregate. 10-15 parts by weight of the filler material, 2-4 parts by weight of an emulsifier mixed with anionic surfactant and SBS 1: 1, and a regeneration additive so that the asphalt can be used at room temperature without heating solid or semisolid DC asphalt at room temperature. 5 parts by weight of emulsified asphalt and EVA (Ethlyene Vinyl Acetate) and EMMA (Ethyl Methyl Metacylate) are mixed in a ratio of 1: Eco-friendly recycled packaging composition consisting of 5 to 10 parts by weight of binder and 20 to 40 parts by weight of water used.
폐아스콘 순환골재는 폐아스팔트 콘크리트를 분쇄하여 80mm, 40mm, 20mm, 5mm, 2.5mm, 0.4mm, 0.08mm 체에 순차적으로 통과시켜 입도별로 분류한 것을 특징으로 하는 친환경성 상온 재생포장재 조성물.The method according to claim 1,
Waste asphalt recycled aggregate eco-friendly recycled packaging material composition characterized in that the waste asphalt concrete is pulverized and passed sequentially through 80mm, 40mm, 20mm, 5mm, 2.5mm, 0.4mm, 0.08mm sieve and classified by particle size.
유화제는 양이온 계면활성제, 음이온 계면활성제, 비이온 계면활성제, 양쪽성 계면활성제 중 1종 또는 2종 이상과 고분자 개질제인 SBS(Styrene Butadiene Styrene) 또는 SBR(Styrene butadiene rubber) 중 어느 하나를 포함하는 것을 특징으로 하는 친환경성 상온 재생포장재 조성물.The method according to claim 1,
Emulsifiers include one or two or more of cationic surfactants, anionic surfactants, nonionic surfactants, amphoteric surfactants, and any one of a polymeric modifier, SBS (Styrene Butadiene Styrene) or SBR (Styrene butadiene rubber). Eco-friendly regenerated packaging material composition characterized in that.
유화제는 음이온 계면활성제인 것을 특징을 하는 친환경성 상온 재생포장재 조성물.The method according to claim 1 or 5,
Emulsifier is an environmentally friendly room temperature regeneration packaging composition, characterized in that the anionic surfactant.
유화 아스팔트는 음이온계 계면활성제인 황산에스테르염으로 유화시킨 것을 특징으로 하는 친환경성 상온 재생포장재 조성물.The method of claim 1,
Emulsified asphalt is an environment-friendly recycled packaging material composition, characterized in that the emulsified with sulfate ester salt anionic surfactant.
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| KR101181861B1 (en) | 2012-05-30 | 2012-09-11 | 민경의 | Reclaimed asphalt concrete mixture at room temperature containing additive |
| KR101183177B1 (en) * | 2012-05-30 | 2012-09-14 | 한국석유공업 주식회사 | Producing method for additive for regenerated ascon at room temperature |
| KR101203166B1 (en) | 2012-06-21 | 2012-11-21 | (주)한일 | Composition of asphalt-concrete using industrial wastes |
| KR101284685B1 (en) * | 2012-09-05 | 2013-07-16 | 대길환경산업(주) | Cold recycling asphalt mixtures and manufacturing method thereof |
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| CN114163181A (en) * | 2021-12-02 | 2022-03-11 | 山西机械化建设集团有限公司 | Novel emulsified asphalt cold-recycling lower-surface-layer mixture and construction process thereof |
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| KR20230170238A (en) | 2022-06-10 | 2023-12-19 | (유)동성아스콘 | Recycled ascon composition using recycled aggregate |
| CN116693233A (en) * | 2023-05-17 | 2023-09-05 | 江苏路得沥环保材料有限公司 | Environment-friendly asphalt mixture and preparation method thereof |
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