KR20230092556A - Warm-mix guss asphalt composition - Google Patents
Warm-mix guss asphalt composition Download PDFInfo
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- 239000010426 asphalt Substances 0.000 title claims abstract description 76
- 239000000203 mixture Substances 0.000 title claims abstract description 46
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 7
- 239000011301 petroleum pitch Substances 0.000 claims abstract description 7
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 7
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- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
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- 239000002174 Styrene-butadiene Substances 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 3
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 3
- 235000003441 saturated fatty acids Nutrition 0.000 claims description 3
- 150000004671 saturated fatty acids Chemical class 0.000 claims description 3
- 229920006132 styrene block copolymer Polymers 0.000 claims description 3
- 239000011115 styrene butadiene Substances 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- FHSJASSJVNBPOX-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O FHSJASSJVNBPOX-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 7
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- 239000000779 smoke Substances 0.000 abstract description 4
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- 238000006243 chemical reaction Methods 0.000 description 5
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000005431 greenhouse gas Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
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- LHPJBAIYHPWIOT-UHFFFAOYSA-K aluminum;magnesium;carbonate;hydroxide Chemical compound [OH-].[Mg+2].[Al+3].[O-]C([O-])=O LHPJBAIYHPWIOT-UHFFFAOYSA-K 0.000 description 2
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- 235000019738 Limestone Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
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- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/02—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to polysaccharides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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Abstract
Description
본 발명은 건설 기술분야에 관한 것으로서, 상세하게는 중온 구스 아스팔트 조성물에 관한 것이다.The present invention relates to the field of construction technology and, in particular, to medium-temperature goose asphalt compositions.
지구 온난화로 폭염, 폭설 등 이상기후 현상이 세계 곳곳에서 나타나고 있으며, 국제사회는 기후변화 문제의 심각성을 인식하고 있다.Due to global warming, abnormal weather phenomena such as heat waves and heavy snowfall are appearing all over the world, and the international community is recognizing the seriousness of the climate change problem.
우리나라는 국제사회의 기후변화 동참을 위해 2020년에 '2050 탄소중립 추진전략'을 발표하고 '2050 장기저탄소발전전략(LEDS)' 및 '2030 국가온실가스감축목표(NDC)' 정부안을 확정하였다.In order to participate in the international community's climate change, Korea announced the '2050 Carbon Neutral Promotion Strategy' in 2020 and finalized the '2050 Long-term Low-Carbon Development Strategy (LEDS)' and '2030 National Greenhouse Gas Reduction Target (NDC)' government proposals.
도로건설 산업분야에서는 탄소저감을 위한 다양한 도로포장 기술 개발이 새로운 화두가 되고 있으며, 그 중 도로포장에 널리 사용되고 있는 아스팔트 혼합물에 대해 생산온도를 저감 시킬 수 있는 중온 아스팔트 포장 연구가 활발히 진행되고 있다.In the road construction industry, the development of various road pavement technologies for carbon reduction has become a new topic, and among them, studies on medium-temperature asphalt pavement that can reduce the production temperature of asphalt mixtures widely used in road pavement are being actively conducted.
일반적으로 아스팔트 혼합물은 160 ~ 190℃ 사이의 고온으로 생산하는 과정에서 온도의 유지를 위해 많은 양의 화석 연료를 소비하여 온실가스 및 아스팔트 흄을 발생시킨다.In general, asphalt mixtures generate greenhouse gases and asphalt fumes by consuming a large amount of fossil fuel to maintain the temperature during production at a high temperature between 160 and 190 ° C.
국내의 경우는 밀입도(HMA) 및 개립도(SMA) 등 일반 가열 아스팔트 혼합물에 대한 중온 아스팔트 기술 연구가 진행됐고, 현장 적용이 이루어지고 있으나 구스 아스팔트와 같은 특수 아스팔트 혼합물에 중온 아스팔트 기술을 적용한 연구사례가 부족한 실정이다.In Korea, research on medium-temperature asphalt technology has been conducted for general heated asphalt mixtures such as dense grain size (HMA) and openness (SMA), and field application is being conducted. Cases are scarce.
특수 아스팔트는 구스 아스팔트 혼합물 및 배수성 아스팔트 혼합물과 같이 기능성을 겸비한 아스팔트 혼합물을 말하며, 특히 구스 아스팔트의 경우 높은 바인더 함량과 다량의 채움재를 사용하고, 약 230 ~ 240℃ 고온에서 생산함으로써 아스팔트 혼합물 자체가 흐름성을 갖는 아스팔트 혼합물이므로, 일반 가열 아스팔트에 비해 더 높은 생산온도가 요구되는 만큼 생산 및 시공과정에서 발생하는 온실가스 및 아스팔트 흄의 발생 저감을 위한 연구개발이 절실히 필요한 실정이다.Special asphalt refers to an asphalt mixture that has both functions, such as a goose asphalt mixture and a drainage asphalt mixture. In particular, in the case of goose asphalt, a high binder content and a large amount of filler are used, and the asphalt mixture itself flows by producing it at a high temperature of about 230 ~ 240 ° C. Since it is an asphalt mixture having properties, research and development for reducing the generation of greenhouse gases and asphalt fume generated during production and construction are urgently needed as a higher production temperature is required than that of general heated asphalt.
구스 아스팔트는 일반적으로 천연 아스팔트(TLA)와 열가소성 고분자를 포함한 개질 아스팔트 바인더를 사용하며, 별도의 구스 아스팔트 혼합물 골재 입도를 적용하여 혼합물 생산 후 쿠커 차량에 210~240℃ 고온으로 가열하여 시공위치에 포설 또는 흘려보내 인두로 마감한다.Goose asphalt generally uses a modified asphalt binder including natural asphalt (TLA) and a thermoplastic polymer, and after producing the mixture by applying a separate particle size of the Goose asphalt mixture aggregate, heat it in a cooker vehicle at a high temperature of 210 ~ 240 ℃ and lay it at the construction site. Or run it out and finish it with an iron.
구스 아스팔트에 TLA를 사용하는 이유는 TLA가 가지는 내구성, 바인더 및 혼합물의 안정성, 소성변형 저감성, Self leveling, 작업성 등의 성능을 발휘하기 위함인데, 유럽이나 중국 등에서는 TLA를 제외한 개질 아스팔트도 함께 사용 중이나, 최근 환경적인 이슈로 인하여 유해물질, 냄새, 연기 등의 문제가 제기되고 있다.The reason why TLA is used for Goose asphalt is to demonstrate the performance of TLA, such as durability, stability of binder and mixture, plastic deformation reduction, self leveling, and workability. In Europe and China, modified asphalt excluding TLA is also used. Although they are used together, problems such as harmful substances, smell, and smoke have been raised due to recent environmental issues.
본 발명은 상기와 같은 문제점을 해결하기 위하여 도출된 것으로서, 운반 및 시공단계에 걸쳐 기존 구스 아스팔트 포장과 동일한 작업성 및 역학적 성능을 확보하면서도, 아스팔트 혼합물의 생산온도를 저감시킴에 따라, 연기, 냄새, 유해물질 등을 억제할 수 있도록 하는 중온 구스 아스팔트 조성물을 제시하는 것을 그 목적으로 한다.The present invention was derived to solve the above problems, and as it reduces the production temperature of the asphalt mixture while securing the same workability and mechanical performance as the existing Goose asphalt pavement throughout the transportation and construction stages, smoke and odor Its purpose is to present a medium-temperature goose asphalt composition that can suppress harmful substances and the like.
상기 과제의 해결을 위하여, 본 발명은 LBA(Low Viscosity Blow Asphalt) 39~92.9 중량%: 합성고무 1~10 중량%: 석유계 피치 5~40 중량%: 왁스 1~10 중량%: 가교제 0.1~1 중량%:를 포함하는 것을 특징으로 하는 중온 구스 아스팔트 조성물을 제시한다.In order to solve the above problems, the present invention LBA (Low Viscosity Blow Asphalt) 39 ~ 92.9 wt%:
상기 LBA는 2차 산화 축중합 반응 공정에 의해 제조된 것이 바람직하다.The LBA is preferably prepared by a secondary oxidation polycondensation reaction process.
상기 합성고무는 스타이렌-부타디엔=스타이렌 블록 공중합체(SBS)인 것이 바람직하다.The synthetic rubber is preferably a styrene-butadiene=styrene block copolymer (SBS).
상기 석유계 피치는, 감압잔사유(VR, Vacuum Residue)와 HVR(High Vacuum Bottom Residual)을 산화 축중합 반응 공정에 의해 혼합한 것이 바람직하다.The petroleum pitch is preferably a mixture of Vacuum Residue (VR) and High Vacuum Bottom Residual (HVR) through an oxidative polycondensation reaction process.
상기 왁스는, 에티렌-비스-스테아르아미드(EBS- Ethylene-bis-stearamide) 왁스와 올레 아미드(Oleamide) 왁스, 폴리올레핀(Polyolefine) 왁스, 스테아르아미드(Stearamide) 왁스, Erucamice wax 중 2 이상의 혼합물인 것이 바람직하다.The wax is a mixture of two or more of EBS-Ethylene-bis-stearamide wax, Oleamide wax, Polyolefin wax, Stearamide wax, and Erucamice wax desirable.
상기 가교제는, 마그네슘 수산화 알루미늄 탄산염(Magnesium Aluminium Hydroxide Carbonate) 90~97 중량%; 포화 지방산(Saturated fatty acids)를 3~10 중량%;를 포함하는 것이 바람직하다.The cross-linking agent, magnesium hydroxide aluminum carbonate (Magnesium Aluminum Hydroxide Carbonate) 90 to 97% by weight; It is preferable to include; 3 to 10% by weight of saturated fatty acids.
본 발명은 운반 및 시공단계에 걸쳐 기존 구스 아스팔트 포장과 동일한 작업성 및 역학적 성능을 확보하면서도, 아스팔트 혼합물의 생산온도를 저감시킴에 따라, 연기, 냄새, 유해물질 등을 억제할 수 있도록 하는 중온 구스 아스팔트 조성물을 제시한다.The present invention is a medium-temperature goose that can suppress smoke, odor, harmful substances, etc. by reducing the production temperature of the asphalt mixture while securing the same workability and mechanical performance as the existing goose asphalt pavement throughout the transportation and construction stages. An asphalt composition is presented.
도 1은 비교예에서 발생하는 아스팔트 흄을 측정한 그래프.
도 2는 본 발명의 실시예에서 발생하는 아스팔트 흄을 측정한 그래프.1 is a graph measuring asphalt fume generated in a comparative example.
Figure 2 is a graph measuring asphalt fume generated in an embodiment of the present invention.
이하, 첨부도면을 참조하여 본 발명의 실시예에 관하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 이하에 도시된 바와 같이, 본 발명에 의한 중온 구스 아스팔트 조성물은 기본적으로, LBA(Low Viscosity Blow Asphalt) 39~92.9 중량%; 합성고무 1~10 중량%; 석유계 피치 5~40 중량%; 왁스 1~10 중량%; 가교제 0.1~1 중량%;를 포함하여 구성된다.As shown below, the medium temperature goose asphalt composition according to the present invention is basically, LBA (Low Viscosity Blow Asphalt) 39 ~ 92.9% by weight; 1 to 10% by weight of synthetic rubber; 5 to 40% by weight of petroleum pitch; 1 to 10% by weight of wax; 0.1 to 1% by weight of a crosslinking agent;
LBA(Low Viscosity Blow Asphalt)의 구체적 내용은 다음과 같다.Details of LBA (Low Viscosity Blow Asphalt) are as follows.
190~200℃의 온도에서 구스 아스팔트 혼합물의 유동성을 증가시키고, 혼합물의 물리적 성능을 향상 또는 유지하기 위한 바인더의 제조 첨가제로 석유 정제공정에서 중질유분해공정 통해 발생하는 잔사유분(High Vacuum Bottom Residual)을 사용한다.It is a binder manufacturing additive to increase the fluidity of the goose asphalt mixture at a temperature of 190 ~ 200 ℃ and improve or maintain the physical performance of the mixture. use.
HVR을 구스 아스팔트에 적용하기 위해서는 TLA 및 BA 10~20 수준의 물리적 특성 발현이 필요하므로, 이를 위해 2차 산화 축중합 반응 공정을 거쳐 제조한다.In order to apply HVR to goose asphalt, TLA and BA 10-20 levels of physical properties are required, so it is manufactured through a secondary oxidation polycondensation reaction process.
이때 제조된 아스팔트를 LBA(Low Viscosity Blow Asphalt)라고 칭하는데, LBA는 분자량은 높으나 상대적으로 점도가 낮은 성상을 나타내어 높은 온도에서도 유동성을 증가시킬 수 있다.At this time, the prepared asphalt is referred to as LBA (Low Viscosity Blow Asphalt), and LBA has a high molecular weight but relatively low viscosity and can increase fluidity even at high temperatures.
여기서, 2차 산화 축중합 반응 공정이란, 석유아스팔트를 주원료로 하여 220℃~250℃의 고온에서 공기를 불어 넣음으로써, 공기에 의한 산화 반응 및 중.축합 반응에 의해 탄성력이 큰 아스팔트를 만드는 공정을 의미한다.Here, the secondary oxidation polycondensation reaction process is a process of making asphalt with high elasticity by air-induced oxidation and polycondensation reactions by blowing air at a high temperature of 220°C to 250°C using petroleum asphalt as the main raw material. means
위 공정에 의해 제조된 아스팔트는 스트레이트 아스팔트에 비해 아스팔텐의 함유량이 많고 페트로렌의 함유량이 적어 내열성이 우수하며 충격 저항성이 강하고 감온성이 적다.Asphalt manufactured by the above process has a higher content of asphaltenes and a lower content of petrorene than straight asphalt, so it has excellent heat resistance, strong impact resistance, and low temperature sensitivity.
이는 방수 및 방습용으로 외벽, 지하실, 루핑 제조용으로 사용되고, 전기절연, 케이블 보호, 전기부품의 실링제 및 금속, 콘크리트의 보호 도장용 등으로도 사용된다.It is used for manufacturing outer walls, basements, and roofing for waterproofing and moisture-proofing, and is also used for electrical insulation, cable protection, sealing agent for electrical parts, and protective coating of metal and concrete.
2차 산화 축중합 반응은 일정 고온 조건하에서 아스팔트가 산소 혹은 공기와 결합하는 화학적 반응에 의해 이루어지는데, 아스팔트의 산화반응의 방식에 따라 "무촉매 공기-브로운 반응"과 "촉매 공기-브로운 반응"으로 구분된다.The secondary oxidation polycondensation reaction is carried out by a chemical reaction in which asphalt combines with oxygen or air under a certain high temperature condition. classified as "reaction".
"무촉매 공기-브로운 반응"은 아스팔트의 산화반응을 위하여 일반적으로 산소만을 사용하고, "촉매 공기-브로운 반응"은 반응시간의 단축 및 효율화를 목적으로 산소와 함께 산화물과 같은 촉매를 동시에 사용한다.The "non-catalytic air-blown reaction" generally uses only oxygen for the oxidation reaction of asphalt, and the "catalytic air-blown reaction" simultaneously uses a catalyst such as an oxide along with oxygen for the purpose of shortening the reaction time and increasing efficiency. use.
본 발명에서 사용하는 LBA는 2차 산화 축중합 반응 중 무촉매 공기-브로운 반응에 의해 제조된 것으로서, 다음과 같은 특성을 갖는다.The LBA used in the present invention is produced by a non-catalytic air-blown reaction among secondary oxidative polycondensation reactions, and has the following characteristics.
첫째, 전체 포화탄화물(Sa)의 함량 변화가 없다. First, there is no change in the content of the total saturated carbide (Sa).
둘째, 방향족계 화합물의 함량이 증가함과 동시에 방향성도 증가한다. Second, as the content of the aromatic compound increases, the aromaticity also increases.
셋째, 산화 반응이 장기간 진행됨에 따라 탈수소화 반응과 축합반응이 발생하여 다중핵 방향족 및 다수-고리 환형파라핀계의 함량이 증가되어 C/H 비가 증가한다. Third, as the oxidation reaction proceeds for a long period of time, dehydrogenation and condensation reactions occur, increasing the content of multinuclear aromatic and multi-ring cyclic paraffins, thereby increasing the C/H ratio.
넷째, 이와 동시에 분자량과 아스팔텐(As) 함량이 증가한다.Fourth, at the same time, the molecular weight and asphaltene (As) content increase.
첨가제의 구체적 내용은 다음과 같다.The specific content of the additive is as follows.
합성고무로는, Styrene와 Butadiene을 유기용매 내에서 중합한 스타이렌-부타디엔=스타이렌 블록 공중합체(SBS)로서, 가황 공정 없이도 분자구조가 고탄성이면서 변형회복성이 우수한 열가소성 엘라스토머를 사용한다.As a synthetic rubber, a styrene-butadiene = styrene block copolymer (SBS) obtained by polymerizing styrene and butadiene in an organic solvent is used, and a thermoplastic elastomer having a high elasticity molecular structure and excellent deformation recovery property is used without a vulcanization process.
전체 중량 대비 스테이렌 함량 31~ 55 중량부인 것을 사용하는 것이 바람직하다.It is preferable to use a styrene content of 31 to 55 parts by weight relative to the total weight.
석유계 피치는 감압잔사유(VR, Vacuum Residue)와 HVR(High Vacuum Bottom Residual)을 산화 축중합 반응 공정에 의해 혼합한 것을 사용한다.Petroleum-based pitch uses a mixture of Vacuum Residue (VR) and High Vacuum Bottom Residual (HVR) through an oxidative polycondensation reaction process.
감압잔사유(VR, Vacuum Residue)는 감압증류탑(VDU)에서 더 이상 증류가 안되고 무거워 남겨진 유분을 의미한다.Vacuum Residue (VR) refers to oil that is no longer distilled in a vacuum distillation column (VDU) and remains heavy.
HVR(High Vacuum Bottom Residual)은 제3 중질유 분해시설에도 더 이상 증류가 안되고 무거워 남겨진 유분을 의미한다.HVR (High Vacuum Bottom Residual) refers to oil that is no longer distilled and remains heavy in the third heavy oil cracking facility.
왁스는 에티렌-비스-스테아르아미드(EBS- Ethylene-bis-stearamide) 왁스와 올레 아미드(Oleamide) 왁스, 폴리올레핀(Polyolefine) 왁스, 스테아르아미드(Stearamide) 왁스, Erucamice wax 중 2 이상의 혼합물인 하이브리드 왁스를 적용한다.The wax is a hybrid wax that is a mixture of two or more of ethylene-bis-stearamide (EBS) wax, oleamide wax, polyolefin wax, stearamide wax, and erucamice wax. apply
가교제는 마그네슘 수산화 알루미늄 탄산염(Magnesium Aluminium Hydroxide Carbonate) 90~97 중량%; 포화 지방산(Saturated fatty acids)를 3~10 중량%;를 포함하는 것을 사용한다.The crosslinking agent is magnesium hydroxide aluminum carbonate (Magnesium Aluminum Hydroxide Carbonate) 90 to 97% by weight; 3 to 10% by weight of saturated fatty acids; is used.
이하, 본 발명에 의한 중온 구스 아스팔트 조성물의 물성을 입증하기 위한 시험결과에 관하여 설명한다.Hereinafter, test results for proving the physical properties of the medium-temperature goose asphalt composition according to the present invention will be described.
표 1은 본 발명의 실시예 및 비교예의 구체적 배합비를 나타낸 것이다.Table 1 shows specific blending ratios of Examples and Comparative Examples of the present invention.
본 발명의 실시예들은 아스팔트로서 상술한 LBA(Low Viscosity Blow Asphalt)를 적용한 것이고, 비교예들은 아스팔트로서 TLA(Trinidad Lake Asphalt)를 적용한 것이다.Examples of the present invention apply the above-described LBA (Low Viscosity Blow Asphalt) as asphalt, and comparative examples apply TLA (Trinidad Lake Asphalt) as asphalt.
TLA는 역청 53~55 중량%, 미네랄 36~37 중량%, 미네랄 유기물 및 휘발성 물질 9~10 중량%로 구성된다.TLA is composed of 53 to 55% by weight of bitumen, 36 to 37% by weight of minerals, and 9 to 10% by weight of mineral organics and volatile substances.
굵은골재(13mm), 석분(6mm 이하), 채움재(석회석분)를 사용하여 시험을 위한 구스 아스팔트 혼합물의 시험체를 제조하였다.Coarse aggregate (13 mm), stone powder (6 mm or less), and filling material (limestone powder) were used to prepare a specimen of the goose asphalt mixture for testing.
본 발명의 실시예의 경우, 위 재료들을 혼합하고 구스 아스팔트 믹서를 이용하여 190~200℃의 온도에서 약 1시간 교반하여 생산하였고, 비교예의 경우, 230~240℃의 온도에서 생산하였다.In the case of the embodiment of the present invention, the above materials were mixed and produced by stirring for about 1 hour at a temperature of 190 to 200 ° C. using a goose asphalt mixer, and in the case of a comparative example, it was produced at a temperature of 230 to 240 ° C.
표 2는 본 발명의 실시예 및 비교예의 기초 물성에 관한 것이고, 표 3은 품질시험결과에 관한 것이다.Table 2 relates to basic physical properties of Examples and Comparative Examples of the present invention, and Table 3 relates to quality test results.
본 발명의 실시예들은 비교예에 비해 30℃ 이상 낮은 온도에서 생산되었음에 불구하고, 동등 이상의 품질을 가짐을 확인할 수 있다.Although the examples of the present invention were produced at a temperature lower than 30 ° C. or more compared to the comparative examples, it can be confirmed that they have equal or higher quality.
도 1은 비교예(종래의 구스 아스팔트 혼합물)에서 발생하는 아스팔트 흄(미세먼지)을 측정한 그래프이고, 도 2는 본 발명의 실시예에 의한 중온 구스 아스팔트 혼합물에서 발생하는 아스팔트 흄(미세먼지)을 측정한 그래프이다.1 is a graph measuring asphalt fume (fine dust) generated in a comparative example (conventional goose asphalt mixture), and FIG. 2 is asphalt fume (fine dust) generated in a medium-temperature goose asphalt mixture according to an embodiment of the present invention is a graph that measures
본 발명의 실시예(중온 구스 아스팔트 혼합물) 및 비교예(종래의 구스 아스팔트 혼합물)의 시험체를 제조한 후, 1m3의 미세먼지 측정 부스 내에 위 시험체를 설치하고, 1시간 동안 감소하는 아스팔트 흄을 측정하였다.After preparing the test specimens of the embodiment of the present invention (medium-temperature goose asphalt mixture) and comparative example (conventional goose asphalt mixture), the above test specimens were installed in a 1m 3 fine dust measurement booth, and the asphalt fume decreasing for 1 hour measured.
시험체에서 발생하는 미세먼지의 농도가 미세먼지 측정 부스 내부 전 영역에 걸쳐 일정하게 하기 위해, 부스 중앙에 공기순환장치(서큘레이터)를 설치하여 시험을 수행하였다.In order to keep the concentration of fine dust generated from the test body constant throughout the entire interior of the fine dust measurement booth, an air circulation device (circulator) was installed in the center of the booth to perform the test.
시험체는 5cm×5cm×5cm 크기의 몰드로 제작한 것을 사용하였고, 1시간 동안 발생하는 미세먼지 흄(fume) 농도를 미세먼지 측정기(Aerocet831, 광산란 방식)에 의해 측정하는 방식을 사용하였다.The test body was made of a mold with a size of 5 cm × 5 cm × 5 cm, and a method of measuring the concentration of fine dust fume generated for 1 hour by a fine dust measuring instrument (Aerocet831, light scattering method) was used.
비교예(종래의 구스 아스팔트 혼합물)의 미세먼지(PM 2.5) 측정결과, 부스에 시험체를 설치하고 1분 후 가장 높은 305.4㎍/m3를 나타냈고, 30분 후 179.8㎍/m3 이하로 낮아졌으며, 1시간 경과 후 시험시작 전 미세먼지 농도와 유사해지는 경향을 나타냈다.As a result of measuring the fine dust (PM 2.5) of the comparative example (conventional goose asphalt mixture), the test specimen was installed in the booth and 1 minute later showed the highest 305.4μg/m 3 , and 30 minutes later it was lower than 179.8μg/m 3 It showed a tendency to become similar to the concentration of fine dust before the start of the test after 1 hour.
본 발명의 실시예(중온 구스 아스팔트 혼합물)의 미세먼지(PM 2.5) 측정결과, 부스에 시험체를 설치하고 5분 후 128.7㎍/m3으로 수치가 가장 높았고, 30분 후 86.9㎍/m3를 나타냈으며, 60분 후 측정 전 대기 미세먼지 수준인 55.7㎍/m3까지 낮아졌고, 1시간 경과 시, 대기 중 미세먼지 농도와 유사해지는 경향을 나타냈다.As a result of measuring fine dust (PM 2.5) of the embodiment of the present invention (medium-temperature goose asphalt mixture), the value was the highest at 128.7 μg/m 3 after 5 minutes after installing the test body in the booth, and 86.9 μg/m 3 after 30 minutes After 60 minutes, the level of fine dust in the air before measurement was lowered to 55.7 μg/m 3 , and after 1 hour, it tended to become similar to the concentration of fine dust in the air.
종합하면, 비교예(종래의 구스 아스팔트 혼합물)의 시간당 평균 미세먼지(PM 2.5) 농도가 191.3㎍/m3임에 비해, 본 발명의 실시예(중온 구스 아스팔트 혼합물)의 시간당 평균 미세먼지(PM 2.5) 농도는 89.4㎍/m3이므로, 본 발명은 종래기술에 비해 약 47% 의 미세먼지(PM 2.5) 저감 효과가 있는 것을 확인할 수 있었다.In summary, the hourly average fine dust (PM 2.5) concentration of the comparative example (conventional goose asphalt mixture) was 191.3 μg/m 3 , whereas the hourly average fine dust (PM) of the inventive example (medium-temperature goose asphalt mixture) 2.5) Since the concentration is 89.4 μg/m 3 , it was confirmed that the present invention has an effect of reducing fine dust (PM 2.5) by about 47% compared to the prior art.
이상은 본 발명에 의해 구현될 수 있는 바람직한 실시예의 일부에 관하여 설명한 것에 불과하므로, 주지된 바와 같이 본 발명의 범위는 위의 실시예에 한정되어 해석되어서는 안 될 것이며, 위에서 설명된 본 발명의 기술적 사상과 그 근본을 함께 하는 기술적 사상은 모두 본 발명의 범위에 포함된다고 할 것이다.Since the above has only been described with respect to some of the preferred embodiments that can be implemented by the present invention, as noted, the scope of the present invention should not be construed as being limited to the above embodiments, and the scope of the present invention described above It will be said that the technical idea and the technical idea together with the root are all included in the scope of the present invention.
Claims (6)
합성고무 1~10 중량%:
석유계 피치 5~40 중량%:
왁스 1~10 중량%:
가교제 0.1~1 중량%:를
포함하는 것을 특징으로 하는 중온 구스 아스팔트 조성물.Low Viscosity Blow Asphalt (LBA) 39 to 92.9% by weight:
1-10% by weight of synthetic rubber:
5-40% by weight of petroleum pitch:
Wax 1-10% by weight:
0.1 to 1% by weight of crosslinking agent:
Medium temperature goose asphalt composition comprising a.
상기 LBA는 2차 산화 축중합 반응 공정에 의해 제조된 것을 특징으로 하는 중온 구스 아스팔트 조성물.According to claim 1,
The LBA is a medium-temperature goose asphalt composition, characterized in that produced by a secondary oxidation polycondensation reaction process.
상기 합성고무는 스타이렌-부타디엔=스타이렌 블록 공중합체(SBS)인 것을 특징으로 하는 중온 구스 아스팔트 조성물.According to claim 1,
The synthetic rubber is a medium-temperature goose asphalt composition, characterized in that the styrene-butadiene = styrene block copolymer (SBS).
상기 석유계 피치는,
감압잔사유(VR, Vacuum Residue)와 HVR(High Vacuum Bottom Residual)을 산화 축중합 반응 공정에 의해 혼합한 것을 특징으로 하는 중온 구스 아스팔트 조성물.According to claim 1,
The petroleum pitch,
A medium-temperature goose asphalt composition characterized in that vacuum residue (VR) and high vacuum bottom residue (HVR) are mixed by an oxidative polycondensation reaction process.
상기 왁스는,
에티렌-비스-스테아르아미드(EBS- Ethylene-bis-stearamide) 왁스와 올레 아미드(Oleamide) 왁스, 폴리올레핀(Polyolefine) 왁스, 스테아르아미드(Stearamide) 왁스, Erucamice wax 중 2 이상의 혼합물인 것을 특징으로 하는 중온 구스 아스팔트 조성물.According to claim 1,
the wax,
Ethylene-bis-stearamide (EBS-Ethylene-bis-stearamide) wax, oleamide (Oleamide) wax, polyolefin (Polyolefine) wax, stearamide (Stearamide) wax, medium temperature characterized by a mixture of two or more of Erucamice wax Goose asphalt composition.
상기 가교제는,
마그네슘 수산화 알루미늄 탄산염(Magnesium Aluminium Hydroxide Carbonate) 90~97 중량%;
포화 지방산(Saturated fatty acids)를 3~10 중량%;를
포함하는 것을 특징으로 하는 중온 구스 아스팔트 조성물.According to claim 1,
The crosslinking agent,
90 to 97% by weight of magnesium aluminum hydroxide carbonate;
3 to 10% by weight of saturated fatty acids;
Medium temperature goose asphalt composition comprising a.
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