KR102480145B1 - Eco-friendly high-durability multi-layer low-noise asphalt mixture composition and pavement method - Google Patents
Eco-friendly high-durability multi-layer low-noise asphalt mixture composition and pavement method Download PDFInfo
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- 239000010426 asphalt Substances 0.000 title claims abstract description 56
- 239000000203 mixture Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 5
- 239000011230 binding agent Substances 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 7
- 235000019738 Limestone Nutrition 0.000 claims abstract description 6
- 239000006028 limestone Substances 0.000 claims abstract description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920002385 Sodium hyaluronate Polymers 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 229940010747 sodium hyaluronate Drugs 0.000 claims description 4
- 235000019830 sodium polyphosphate Nutrition 0.000 claims description 4
- YWIVKILSMZOHHF-QJZPQSOGSA-N sodium;(2s,3s,4s,5r,6r)-6-[(2s,3r,4r,5s,6r)-3-acetamido-2-[(2s,3s,4r,5r,6r)-6-[(2r,3r,4r,5s,6r)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2- Chemical compound [Na+].CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 YWIVKILSMZOHHF-QJZPQSOGSA-N 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical compound OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 36
- 238000010276 construction Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- 238000005056 compaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- 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
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
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- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- 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
- C04B18/18—Waste materials; Refuse organic
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- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
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- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
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- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
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- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
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- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
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Abstract
Description
본 발명은 아스팔트 혼합 조성물에 관한 것으로서, 더욱 상세하게는 노면에 포장 시공이 이루어지는 포장도로의 저소음화를 이루기 위한 친환경 고내구성 복층 저소음 아스팔트 혼합 조성물 및 포장공법에 관한 것이다.The present invention relates to an asphalt mixture composition, and more particularly, to an eco-friendly, high-durability multi-layer low-noise asphalt mixture composition and a pavement method for achieving low-noise pavement construction on the road surface.
일반적으로 각종 도로포장에 사용되는 아스팔트 포장재는 골재와 결속재(아스팔트 피치)가 배합 기준에 따라 혼합되어 제조되며, 이 제조된 혼합물을 지면에 포설한 후 로울러 등을 이용한 다짐 작업에 의해 노면이 평탄하게 다져지면서 일정한 두께로 포장층이 시공된다.In general, asphalt paving materials used in various road pavements are manufactured by mixing aggregate and binding material (asphalt pitch) according to mixing standards, and after laying the prepared mixture on the ground, the road surface is flattened by compaction work using rollers, etc. As it is compacted, the pavement layer is constructed with a certain thickness.
이와 같은 일반 아스팔트 포장재는 예를 들어, 도로의 시공 후 차량 주행 등에 의해 발생하는 각종 접지 소음을 감쇄시키기에는 한계가 있다.Such a general asphalt pavement has limitations in attenuating various ground noises generated by vehicle driving after construction of a road, for example.
이러한 단점을 보완하기 위해 최근에는 골재의 공극률을 조절하고, 기능성 아스팔트 바인더가 혼합된 저소음 아스팔트 포장재에 관련된 기술이 개발되고 있다.In order to compensate for these disadvantages, technologies related to low-noise asphalt paving materials in which the porosity of the aggregate is adjusted and a functional asphalt binder is mixed have recently been developed.
그러나, 종래 저소음 아스팔트 포장재는 단층형의 구조를 이루고 있기 때문에 타이어 접지 소음을 저감시키는데 한계가 있기 때문에 노면 저소음 특성을 향상시킴과 함께 자원 재활용을 통한 친환경적인 아스팔트 시공 기술이 요구되는 실정이다.However, since the conventional low-noise asphalt pavement has a single-layer structure, there is a limit to reducing tire ground noise, so there is a need for an environmentally friendly asphalt construction technology through resource recycling while improving road surface noise characteristics.
본 발명은 상기한 종래 기술에서의 문제점을 개선하기 위해 제안된 것으로서, 친환경적인 요소를 고려하는 가운데 포장층을 복층형 구조를 이루도록 하여 저소음 특성을 향상시킨 친환경 고내구성 복층 저소음 아스팔트 혼합 조성물 및 포장공법을 제공하는데 목적이 있다.The present invention has been proposed to improve the problems in the prior art, and while considering eco-friendly factors, the pavement layer has a multi-layered structure to improve low-noise characteristics. An eco-friendly, high-durability multi-layer low-noise asphalt mixture composition and paving method It aims to provide
상기 목적을 이루기 위한 본 발명은, 상층부와 하층부의 복층 구조로 시공이 이루어지는 아스팔트 포장층의 혼합 조성에 있어서, 상기 상층부는 입경 6~10mm의 굵은골재 40~80중량%, 입경 1~5mm의 잔골재 1~50중량%, 석회석분 3~15중량%, 개질 아스팔트 바인더 4~15중량%의 혼합 조성을 이루고; 상기 개질 아스팔트 바인더는 AP 70~90중량%, GTR 5~25중량%, SBS 1~7중량%의 혼합 조성을 이루는 것을 특징으로 한다.The present invention for achieving the above object is a mixed composition of an asphalt pavement layer constructed in a multi-layer structure of an upper layer and a lower layer, wherein the upper layer contains 40 to 80% by weight of coarse aggregate with a particle size of 6 to 10 mm and fine aggregate with a particle size of 1 to 5 mm. A mixed composition of 1 to 50% by weight, 3 to 15% by weight of limestone powder, and 4 to 15% by weight of a modified asphalt binder; The modified asphalt binder is characterized by forming a mixed composition of 70 to 90% by weight of AP, 5 to 25% by weight of GTR, and 1 to 7% by weight of SBS.
이때, 상기 개질 아스팔트 바인더는 습식형 고성능 개질 아스팔트 바인더인 것을 특징으로 한다.At this time, the modified asphalt binder is characterized in that the wet-type high-performance modified asphalt binder.
이러한 본 발명의 복층형 아스팔트 조성물은, 상층부에 습식형 고성능 개질 아스팔트 바인더가 혼합된 박막 포장층의 복층형 구조를 통하여 내구성, 저소음성 및 배수성을 향상시키게 되며, 점도 및 탄성 회복력이 뛰어난 재료 특성의 습식형 고성능 개질 아스팔트 바인더 사용에 따른 포장층의 기능성이 향상되는 효과를 나타낸다.The multilayer asphalt composition of the present invention improves durability, low noise and drainage through the multilayer structure of the thin film pavement layer in which the wet type high performance modified asphalt binder is mixed in the upper layer, and has excellent viscosity and elastic recovery. The use of a high-performance modified asphalt binder shows the effect of improving the functionality of the pavement layer.
이 외에도, 폐기물의 매립물량 감소로 인한 매립지 수명연장, 건설폐기물 매립으로 인한 환경오염 방지, 순환골재를 사용한 아스팔트 콘크리트는 개질 아스팔트 대비 20~30도 낮은 온도에서 생산되므로 이산화탄소 발생량 등 오염물질 발생을 감소시키는 이점을 나타낸다.In addition, landfill life is extended by reducing the amount of waste landfilled, environmental pollution is prevented from landfilling construction waste, and asphalt concrete using recycled aggregate is produced at a
또한, 고내구성 포장기술로 균열, 포트홀 등의 도로포장의 손상을 감소시켜 도로의 유지관리 비용 감소가 가능하고, 도로포장 수명이 연장되어 보수 비용을 절감시키게 된다.In addition, it is possible to reduce road maintenance costs by reducing damage to road pavement such as cracks and potholes with high-durability pavement technology, and it is possible to reduce maintenance costs by extending the life of road pavement.
도 1은 본 발명의 일 실시 예에 따른 복층형 아스팔트 포장층 개략 구조도.1 is a schematic structural diagram of a multi-layered asphalt pavement layer according to an embodiment of the present invention.
이하, 본 발명의 구체적인 실시 예를 첨부 도면을 참조하여 상세히 살펴보기로 한다.Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 발명의 실시 예는 여러 가지 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상세히 설명하는 실시 예로 한정되는 것으로 해석되어서는 안 된다. 본 실시 예는 당 업계에서 평균적인 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위하여 제공되는 것이다.Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art.
따라서, 도면에서 표현한 구성요소의 형상 등은 더욱 명확한 설명을 강조하기 위해서 과장되어 표현될 수 있다. 각 도면에서 동일한 구성은 동일한 참조부호로 도시한 경우가 있음을 유의하여야 한다. 또한, 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 공지 기술의 기능 및 구성에 관한 상세한 설명은 생략될 수 있다.Therefore, the shape of the component expressed in the drawings may be exaggerated to emphasize a clearer explanation. It should be noted that in each drawing, the same configuration may be indicated by the same reference numerals. In addition, detailed descriptions of functions and configurations of known technologies that may unnecessarily obscure the subject matter of the present invention may be omitted.
먼저, 본 발명의 일 실시 예에 따른 친환경 고내구성 복층 저소음 아스팔트 혼합 조성을 살펴보면 다음과 같다.First, look at the eco-friendly, high-durability multi-layer, low-noise asphalt mixture composition according to an embodiment of the present invention.
본 실시 예에서의 아스팔트 포장층은 도 1에서와같이 상층부(10)와 하층부(20)의 복층 구조로 시공이 이루어지게 되는데, 상기 상층부(10)는 입경 6~10mm의 굵은골재 40~80중량%, 입경 1~5mm의 잔골재 1~50중량%, 석회석분 3~15중량%, 개질 아스팔트 바인더 4~15중량%의 혼합 조성을 이루게 된다.As shown in FIG. 1, the asphalt pavement layer in this embodiment is constructed in a multi-layer structure of an
또한, 상기 하층부(20)는 기성 제품을 구입하여 사용하게 되는데, 본 실시 예에서는 입경 10~20mm의 재생 굵은골재 50~85중량%, 입경 1~9mm의 재생 잔골재 1~30중량%, 석회석분 3~15중량%, 개질 아스팔트 바인더 1~15중량%의 재생 재료를 이용한 혼합 조성을 이루게 된다.In addition, the
한편, 상기 상층부(10)에 혼합되는 본 발명에서의 개질 아스팔트 바인더는 AP(아스팔트) 70~90중량%, GTR(Ground Tire Rubber) 5~25중량%, SBS 1~7중량%의 혼합 조성을 이루는 습식형 고성능 개질 아스팔트 바인더가 사용된다.On the other hand, the modified asphalt binder in the present invention mixed in the
이와 같은 혼합 조성을 이루는 아스팔트 포장 조성물의 시공에 따른 작용효과를 살펴보기로 한다.Let's take a look at the working effect according to the construction of the asphalt paving composition constituting such a mixed composition.
본 발명에서의 아스팔트 조성물은 노면에 포장 시공을 통해 상층부(10)와 하층부(20)의 복층형 포장층을 이루게 되는데, 그중 하층부(20)는 경제성을 고려하여 일반 밀입도포장(#78)의 품질 기준을 충족하는 친환경 아스팔트 또는 순환골재를 사용한 친환경 아스팔트 혼합물 기성제품을 구입하여 사용하였다.The asphalt composition in the present invention forms a multi-layer pavement layer of the upper part (10) and the lower part (20) through pavement construction on the road surface. Eco-friendly asphalt or ready-made products using recycled aggregates that meet the criteria were purchased and used.
이때, 하부층(20)에 사용되는 골재는 천연 골재가 아닌 재생 골재 및 재생 아스팔트 성분이 활용되는 것으로, 이를 통해 자원순환 촉진에 따른 친환경 기능을 수행하게 된다.At this time, the aggregate used in the
또한, 상부층(10)은 5mm 이하의 잔골재를 굵은골재와 함께 혼합에 따른 표면 평탄성을 향상시켜서 도로 주행성 향상 및 운전자 피로감 개선의 효과를 나타낼 수 있게 된다.In addition, the
특히, 상부층(10)에 4~15중량% 비율로 혼합되는 습식형 고성능 개질 아스팔트 바인더에는 GTR(분쇄고무분말)이 혼합되어 있기 때문에 포장층의 점도향상 및 소음저감 효과를 극대화할 수 있게 되는데, GTR은 점도와 탄성 회복력이 우수하여 일반 밀입도 아스팔트 포장과 대비했을 때 공용에 의한 아스팔트 노화(산화)를 지연시켜 뛰어난 소음저감 기능을 수행할 수 있게 된다. 또한, 폐타이어 분쇄고무는 재료의 단가가 저렴하여 기존의 저소음 아스팔트 대비하여 경제성 및 자원 재활용 측면에서 유리한 이점을 나타낸다.In particular, since GTR (ground rubber powder) is mixed in the wet-type high-performance modified asphalt binder mixed in an amount of 4 to 15% by weight in the
따라서 본 발명의 복층형 아스팔트 조성물은, 습식형 고성능 개질 아스팔트 바인더가 혼합된 포장층의 복층형 구조를 통하여 내구성, 저소음성 및 배수성을 향상시키게 되며, 점도 및 소음저감 기능의 개질 아스팔트 바인더 사용에 따른 포장층의 기능성이 향상되는 효과를 나타낸다.Therefore, the multi-layer asphalt composition of the present invention improves durability, low noise and drainage through the multi-layer structure of the pavement layer in which the wet type high-performance modified asphalt binder is mixed, and the pavement layer according to the use of the modified asphalt binder with viscosity and noise reduction function shows the effect of improving the functionality of
또한, 복층 시공시 상부층과 하부층을 동시에 포설 및 다짐함으로써 층간 일체화가 가능하게 됨과 함께 연결부의 맞물림 효과로 인해 내구성이 향상되는 이점을 나타낸다.In addition, during multi-layer construction, the upper and lower layers are laid and compacted at the same time, thereby enabling interlayer integration and improving durability due to the interlocking effect of the connecting parts.
한편, 본 발명의 다른 실시 예에서는 상층부(10)에 기능성 향상을 위해 카보나이트 라이드, 실리콘 카바이드 및 소듐하이알루로네이트 성분이 더 첨가된다.Meanwhile, in another embodiment of the present invention, carbonitride, silicon carbide, and sodium hyaluronate components are further added to the
즉, 이때에는 입경 6~10mm의 굵은골재 40~80중량%, 입경 1~5mm의 잔골재 1~50중량%, 석회석분 3~15중량%, 개질 아스팔트 바인더 4~15중량%, 카보나이트 라이드 1~5중량%, 실리콘 카바이드 1~3중량%, 소듐하이알루로네이트 1~3중량%의 혼합 조성을 이룸이 바람직하다.That is, at this time, 40 to 80% by weight of coarse aggregate with a particle diameter of 6 to 10 mm, 1 to 50% by weight of fine aggregate with a particle diameter of 1 to 5 mm, 3 to 15% by weight of limestone powder, 4 to 15% by weight of a modified asphalt binder, carbonite ride 1 to It is preferable to form a mixed composition of 5% by weight, 1 to 3% by weight of silicon carbide, and 1 to 3% by weight of sodium hyaluronate.
또한, 개질 아스팔트 바인더에는 유리섬유, 소디움 폴리 포스페이트, 폴리에틸렌 왁스, 산화아연, 테레프탈산디메틸 성분이 추가로 첨가된다.In addition, glass fiber, sodium polyphosphate, polyethylene wax, zinc oxide, and dimethyl terephthalate components are additionally added to the modified asphalt binder.
즉, 개질 아스팔트 바인더는 AP 70~85중량%, GTR(Ground Tire Rubber) 5~20중량%, SBS 1~7중량%, 유리섬유 1~5중량%, 소디움 폴리 포스페이트 1~5중량%, 폴리에틸렌 왁스 1~5중량%, 산화아연 1~5중량%, 테레프탈산디메틸 1~5중량%의 혼합 조성을 이루도록 함이 바람직하다.That is, the modified asphalt binder includes 70 to 85% by weight of AP, 5 to 20% by weight of GTR (Ground Tire Rubber), 1 to 7% by weight of SBS, 1 to 5% by weight of glass fiber, 1 to 5% by weight of sodium polyphosphate, polyethylene It is preferable to achieve a mixed composition of 1 to 5% by weight of wax, 1 to 5% by weight of zinc oxide, and 1 to 5% by weight of dimethyl terephthalate.
이와 같은 혼합 조성을 이루는 상층부(10)는, 카보나이트 라이드 및 실리콘 카바이드 성분의 혼합으로 인해 내구성이 향상됨과 함께 단열효율이 개선되는 효과를 나타낸다.In the
또한, 추가 첨가된 소듐하이알루로네이트는 아스팔트 성분의 활성화를 통하여 경화시간을 단축시키는 진보된 작용효과를 나타내게 된다.In addition, the additionally added sodium hyaluronate exhibits an advanced action effect of shortening the curing time through activation of the asphalt component.
한편, 개질 아스팔트 바인더에는 유리섬유 및 소디움 폴리 포스페이트 성분이 혼합되어 있기 때문에 완충 효율을 향상시키고, 폴리에틸렌 왁스는 SBS 성분의 변질을 방지하며, 산화아연 및 테레프탈산디메틸은 각각 골재 부착력 향상에 따른 포장 안정성을 향상시키는 진보된 작용효과를 나타내게 된다.On the other hand, since glass fiber and sodium polyphosphate components are mixed in the modified asphalt binder, the buffering efficiency is improved, the polyethylene wax prevents deterioration of the SBS component, and zinc oxide and dimethyl terephthalate each improve pavement stability by improving aggregate adhesion. It shows an advanced action effect that improves.
그리고 상기에서 본 발명의 특정한 실시 예가 설명 및 도시되었지만 본 발명의 복층형 아스팔트 혼합 조성이 당업자에 의해 다양하게 변형되어 실시될 수 있음은 자명한 일이다. And, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the multi-layered asphalt mixture composition of the present invention can be variously modified and practiced by those skilled in the art.
그러나 이와 같은 변형된 실시 예들은 본 발명의 기술적 사상이나 범위로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시 예들은 본 발명의 첨부된 특허청구범위 내에 포함된다 해야 할 것이다.However, such modified embodiments should not be individually understood from the technical spirit or scope of the present invention, and such modified embodiments should be included within the scope of the appended claims of the present invention.
10 : 상층부 20 : 하층부(재생)10: upper layer 20: lower layer (regeneration)
Claims (4)
상기 상층부(10)는 입경 6~10mm의 굵은골재 40~80중량%, 입경 1~5mm의 잔골재 1~50중량%, 석회석분 3~15중량%, 개질 아스팔트 바인더 4~15중량%, 카보나이트 라이드 1~5중량%, 실리콘 카바이드 1~3중량%, 소듐하이알루로네이트 1~3중량%의 혼합 조성을 이루고;
상기 개질 아스팔트 바인더는 AP 70~85중량%, GTR(Ground Tire Rubber) 5~20중량%, SBS 1~7중량%, 유리섬유 1~5중량%, 소디움 폴리 포스페이트 1~5중량%, 폴리에틸렌 왁스 1~5중량%, 산화아연 1~5중량%, 테레프탈산디메틸 1~5중량%의 혼합 조성을 이루는 것을 특징으로 하는 친환경 고내구성 복층 저소음 아스팔트 혼합 조성물.In the mixed composition of the asphalt pavement layer, which is constructed in a multi-layer structure of the upper layer portion 10 and the lower layer portion 20,
The upper layer portion 10 includes 40 to 80% by weight of coarse aggregate with a particle diameter of 6 to 10 mm, 1 to 50% by weight of fine aggregate with a particle diameter of 1 to 5 mm, 3 to 15% by weight of limestone powder, 4 to 15% by weight of a modified asphalt binder, carbonite ride 1 to 5% by weight, 1 to 3% by weight of silicon carbide, 1 to 3% by weight of sodium hyaluronate forming a mixed composition;
The modified asphalt binder includes 70 to 85% by weight of AP, 5 to 20% by weight of GTR (Ground Tire Rubber), 1 to 7% by weight of SBS, 1 to 5% by weight of glass fiber, 1 to 5% by weight of sodium polyphosphate, and polyethylene wax. 1 to 5% by weight, 1 to 5% by weight of zinc oxide, 1 to 5% by weight of dimethyl terephthalate Eco-friendly, high-durability multi-layer low-noise asphalt mixture composition characterized by forming a mixed composition.
An eco-friendly, high-durability multi-layer low-noise asphalt pavement method characterized by forming an integrated multi-layer low-noise asphalt pavement layer by laying and compacting the upper layer of the mixed composition of claim 1 on the road surface at the same time as the lower layer.
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