KR20220014430A - Low noise asphaltconcrete with improved anti-icing and durability - Google Patents

Low noise asphaltconcrete with improved anti-icing and durability Download PDF

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KR20220014430A
KR20220014430A KR1020200093200A KR20200093200A KR20220014430A KR 20220014430 A KR20220014430 A KR 20220014430A KR 1020200093200 A KR1020200093200 A KR 1020200093200A KR 20200093200 A KR20200093200 A KR 20200093200A KR 20220014430 A KR20220014430 A KR 20220014430A
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weight
low
asphalt concrete
noise
aggregate
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정홍기
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(주)일우피피씨
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    • 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
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Abstract

The present invention relates to low-noise asphalt concrete with improved durability formed by mixing an aggregate, modified asphalt, and a modified elastic chip, and more specifically, to low-noise asphalt concrete with improved anti-freezing and durability, wherein the modified asphalt is formed of asphalt, polymer chips comprising any one or two or more among styrene butadiene styrene (SBS), styrene-butadiene rubber (SBR), SBR latex, styrene isoprene styrene (SIS), and styrene ethylene butadiene styrene (SEBS), and process oil, the modified elastic chip is formed of the same polymer chip as the modified asphalt, a tackifier resin, and the process oil, and a heat storage material is further included in the modified elastic chip.

Description

결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트{LOW NOISE ASPHALTCONCRETE WITH IMPROVED ANTI-ICING AND DURABILITY}Low noise asphalt concrete with improved anti-icing and durability {LOW NOISE ASPHALTCONCRETE WITH IMPROVED ANTI-ICING AND DURABILITY}

본 발명은 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트에 관한 것으로 저소음 아스팔트콘크리트 내부의 결합력을 강화하여 내구성이 향상되는 저소음 아스팔트콘크리트에 관한 것이다.The present invention relates to low-noise asphalt concrete with improved anti-freezing and durability, and to low-noise asphalt concrete with improved durability by strengthening the bonding force inside the low-noise asphalt concrete.

일반적으로 아스팔트콘크리트 포장도로는 아스팔트와 골재를 혼합가열하여 얻은 것을 아스팔트콘크리트로 포장되는 도로로 차량의 통행을 위해 고속도로 등에 사용되고 있다.In general, asphalt concrete pavement is a road paved with asphalt concrete obtained by mixing and heating asphalt and aggregate, and is used on highways for vehicle passage.

아스팔트콘크리트는 가열된 아스팔트와 골재의 혼합하여 아스팔트콘크리트로 제조되는 것으로 상기 아스팔트는 석유를 정제할 때 잔류물로 얻어지는 고체나 반고체의 검은색이나 흑갈색 탄화수소 화합물로 고온에서는 액체상태가 되고, 저온에서는 강도가 높은 고체화되어 도포포장에 주로 사용되고 있다.Asphalt concrete is made of asphalt concrete by mixing heated asphalt and aggregate. The asphalt is a solid or semi-solid black or dark brown hydrocarbon compound obtained as a residue when refining petroleum. It becomes liquid at high temperature and has strength at low temperature. It has a high solidification and is mainly used for coating and packaging.

아스팔트로콘크리트로 형성되는 도로는 많은 차량이 통행하는 길로 큰 소음이 발생되어 현재까지는 차량통행 소음을 소음 차단벽을 사용하여 소음을 막아왔다. 이것으로 충분히 소음을 감소시키지 못하게 되면 소음 방지창을 건물에 설치하여 소음을 차단하는 방법을 사용하였다.Roads made of asphalt and concrete are a road that many vehicles pass through, which causes a lot of noise. If the noise could not be sufficiently reduced by this, a method was used to block the noise by installing an anti-noise window in the building.

그러나 소음 차단벽이나 소음 방지창의 설치에는 고가의 재료비와 설치비용등으로 인하여 경제적인 문제가 부가되며, 소음 차단벽이나 소음 방지창을 설치하였어도 소음의 차단에 미흡한 경우에는 차량의 속도를 제한하거나 교통의 흐름을 통제하여 소음을 줄일 수 밖에 없었다. However, the installation of noise barriers or windows causes economic problems due to expensive material and installation costs. It had no choice but to reduce the noise by controlling the flow.

따라서, 소음 발생이 적게 발생되는 저소음 아스팔트콘크리트가 개발되었다.Accordingly, low-noise asphalt concrete that generates less noise has been developed.

종래의 저소음 아스팔트콘크리트는 아스팔트콘크리트 내부의 공극률을 높여 이어와 노면의 마찰음 및 파열음을 공극이 흡수하여 소음을 저감시키는 것으로 배수성 아스팔트콘크리트와 유사한 구성을 가지고 있다.Conventional low-noise asphalt concrete has a structure similar to that of drainage asphalt concrete by increasing the porosity inside the asphalt concrete to reduce the noise by absorbing the friction and rupture sounds of the ear and road surface.

상기와 같이 아스팔트콘크리트 내부의 공극률을 높인 저소음 아스팔트는 대한민국 등록특허 제0268067호, 제1292065호와 같이 굵은골재, 잔골재, 채움재의 비율을 조절하여 공극률을 크게 하여 저소음 기능을 가지게 된다.As described above, the low-noise asphalt with the increased porosity inside the asphalt concrete has a low-noise function by increasing the porosity by adjusting the ratio of coarse aggregate, fine aggregate, and filling material, as in Korean Patent Registration Nos. 0268067 and 1292065.

그러나, 상기와 같이 공극률이 높은 저소음 아스팔트콘크리트는 내부의 아스팔트가 물, 공기 등과 빈번히 접촉하여 노화가 촉진되고 아스팔트 함량이 낮아 골재의 탈리와 균열 등이 빈번히 발생하고 있다.However, in the low-noise asphalt concrete with a high porosity as described above, the internal asphalt frequently comes into contact with water, air, etc., which accelerates aging, and the low asphalt content causes frequent detachment and cracking of aggregates.

최근에는 아스팔트콘크리트 내부에 공극률을 높이는 대신 탄성 수지를 함유시켜 탄성 수지로 인해 아스팔트콘크리트의 유동성을 높이고 탄성 수지가 소음을 흡수하도록 하는 저소음 아스팔트콘크리트가 개발되었다.Recently, low-noise asphalt concrete has been developed that contains an elastic resin instead of increasing the porosity inside the asphalt concrete to increase the fluidity of the asphalt concrete due to the elastic resin and allow the elastic resin to absorb noise.

대한민국 등록특허 제1029912호, 제1624288호는 아스팔트콘크리트 내부에 스티렌뷰타디엔스티렌(SBS),라텍스, 스티렌이스프렌스티렌(SIS), 폐타이어 고무 등으로 형성되는 고탄성 수지를 첨가하여 저소음 아스팔트콘크리트가 개시되어 있다.Korean Patent Registration Nos. 1029912 and 1624288 disclose low-noise asphalt concrete by adding high elastic resin formed of styrene-butadiene styrene (SBS), latex, styrene-isprene styrene (SIS), and waste tire rubber inside the asphalt concrete. has been

그러나, 스티렌뷰타디엔스티렌(SBS),라텍스, 스티렌이스프렌스티렌(SIS), 폐타이어 고무 등의 고탄성 수지가 함유된 저소음 아스팔트콘크리트는 고탄성 수지와 아스팔트 사이간의 결합, 고탄성 수지와 골재간의 결합이 약하게 부착되어 내구성의 문제로 저소음 아스팔트콘크리트의 균열의 문제가 발생되고 있다.However, low-noise asphalt concrete containing high elastic resins such as styrene butadiene styrene (SBS), latex, styrene-isprene styrene (SIS), and waste tire rubber has weak bonding between high elastic resin and asphalt and between high elastic resin and aggregate. Due to the adhesion, the problem of cracking of low-noise asphalt concrete is occurring due to the problem of durability.

또한, 동절기의 아스팔트 콘크리트로 포장된 도로의 경우에는 아스팔트 콘크리트가 수분을 흡수하여 도로 표면이 쉽게 결빙되고, 보온효과로 인하여 쉽게 얼음이 녹지 않거나, 녹은 물이 기온강하로 인하여 재결빙되는 일명 "블랙 아이스"를 형성하여 차량, 보행자의 미끄럼을 유발하여 교통사고 또는 상해사고가 자주 발생하게 된다.In addition, in the case of a road paved with asphalt concrete in winter, the asphalt concrete absorbs moisture so that the road surface freezes easily, and the ice does not melt easily due to the thermal insulation effect, or the melted water re-freezes due to the temperature drop. It forms "ice" and causes vehicle and pedestrian slippage, leading to frequent traffic accidents or injuries.

상기와 같은 문제를 해결하기 위하여 대한민국 등록특허 제1471837호에서는 제설제 흡수력을 높여 결빙 현상을 방지하는 기술이 개시되어 있으나, 제설제 없이는 결빙 현장을 방지할 수 없어 제설제를 살포해야하는 문제가 있었다.In order to solve the above problems, Republic of Korea Patent Registration No. 1471837 discloses a technology for preventing the freezing phenomenon by increasing the absorption power of the snow removal agent, but there was a problem that the ice removal agent had to be sprayed because the freezing site could not be prevented without the snow removal agent.

본 발명은 상기의 종래 기술의 문제점을 해결하기 위한 것으로 탄성 수지로 형성되는 개질 탄성칩을 활용하여 아스팔트콘크리트에 저소음 기능을 부여하면서, 개질 탄성칩와 아스팔트간의 결합력 및 개질 탄성칩와 골재간의 결합력을 크게 향상하여 내구성이 향상되는 저소음 아스팔트콘크리트를 제공하는 것을 목적으로 한다.The present invention is to solve the problems of the prior art, and by using a modified elastic chip formed of an elastic resin, while imparting a low noise function to asphalt concrete, the bonding force between the modified elastic chip and asphalt and the bonding strength between the modified elastic chip and the aggregate are greatly improved An object of the present invention is to provide low-noise asphalt concrete with improved durability.

또한, 저소음 아스팔트콘크리트의 개질 탄성칩에 축열재가 함유되어 열을 축척하여 일정이하의 온도에서 아스팔트콘크리트가 발열되어 결빙 현상을 방지할 수 있는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공하는 것을 목적으로 한다.In addition, the modified elastic chip of low-noise asphalt concrete contains heat storage material to accumulate heat, and the asphalt concrete is heated at a temperature below a certain level to prevent freezing, and to provide low-noise asphalt concrete with improved durability and anti-icing properties. do it with

또한, 프리믹싱형 저소음 아스팔트콘크리트로 제조방식으로 제조 및 시공성이 우수한 저소음 아스팔트콘크리트를 제공하는 것을 목적으로 한다.In addition, it is an object of the premixing type low-noise asphalt concrete to provide low-noise asphalt concrete excellent in manufacturing and constructability by a manufacturing method.

본 발명은 골재, 개질 아스팔트, 개질 탄성칩를 혼합하여 형성되는 내구성이 향상되는 저소음 아스팔트콘크리트에 있어서, 상기 개질 아스팔트는 아스팔트, 스티렌뷰타디엔스티렌(SBS), 스티렌뷰타디엔고무(SBR), SBR라텍스, 스티렌이소프렌스티렌(SIS), 스티렌에틸렌뷰타디엔스티렌(SEBS) 중 어느 하나 또는 2이상의 폴리머 칩, 프로세스 오일로 형성되고, 상기 개질 탄성칩은 상기 개질 아스팔트와 동일한 폴리머 칩, 점착부여수지, 프로세스 오일로 형성되며, 상기 개질 탄성칩에 축열재가 더 포함되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.The present invention provides low-noise asphalt concrete with improved durability formed by mixing aggregate, modified asphalt, and modified elastic chips, wherein the modified asphalt includes asphalt, styrene-butadiene styrene (SBS), styrene-butadiene rubber (SBR), SBR latex, It is formed of any one or two or more polymer chips of styrene isoprene styrene (SIS) and styrene ethylene butadiene styrene (SEBS) and process oil, and the modified elastic chip is made of the same polymer chip, tackifying resin, and process oil as the modified asphalt. It is formed, and provides a low-noise asphalt concrete with improved anti-icing and durability, characterized in that the modified elastic chip further includes a heat storage material.

또한, 상기 골재 100중량부에 개질 아스팔트 3~10중량부, 개질 탄성칩 1~8중량부가 혼합되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, it provides a low-noise asphalt concrete with improved anti-freezing and durability, characterized in that 3 to 10 parts by weight of the modified asphalt and 1 to 8 parts by weight of the modified elastic chip are mixed with 100 parts by weight of the aggregate.

또한, 상기 개질 아스팔트는 아스팔트 100중량부에 폴리머 칩 3~20중량부, 프로세스 오일 0.1~10중량부가 혼합되어 형성되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the modified asphalt provides low-noise asphalt concrete with improved anti-icing and durability, characterized in that 3-20 parts by weight of polymer chips and 0.1-10 parts by weight of process oil are mixed with 100 parts by weight of asphalt.

또한, 상기 개질 탄성칩은 폴리머 칩 100중량부에 점착부여수지 5~30중량부, 프로세스 오일 1~10중량부, 축열재 1~30중량부가 혼합되어 형성되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the modified elastic chip is formed by mixing 5 to 30 parts by weight of a tackifying resin, 1 to 10 parts by weight of process oil, and 1 to 30 parts by weight of a heat storage material to 100 parts by weight of the polymer chip. Provides improved low-noise asphalt concrete.

또한, 상기 아스팔트는 아스팔트 PG등급 58-22, 64-22, 70-22, 76-22, 76-34, 82-28, 82-34 중 어느 하나 또는 2 이상 혼합물인 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the asphalt is any one of asphalt PG grades 58-22, 64-22, 70-22, 76-22, 76-34, 82-28, 82-34, or a mixture of two or more. Provides low-noise asphalt concrete with improved durability.

또한, 상기 축열재는 블랙카본, 탄소나노튜브, 흑연 중에서 선택되는 하나 또는 2이상의 혼합물인 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the heat storage material provides a low-noise asphalt concrete with improved anti-icing and durability, characterized in that one or a mixture of two or more selected from black carbon, carbon nanotubes, and graphite.

또한, 상기 저소음 아스팔트콘크리트에 무기질 안료를 포함시켜 시인성을 가지는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, there is provided a low-noise asphalt concrete with improved anti-icing and durability, characterized in that it has visibility by including an inorganic pigment in the low-noise asphalt concrete.

또한, 상기 골재는 재생골재와 일반골재를 중량비 10:90~80:20로 혼합한 혼합골재를 사용하여 형성되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the aggregate provides low-noise asphalt concrete with improved anti-freezing and durability, characterized in that it is formed by using a mixed aggregate obtained by mixing regenerated aggregate and general aggregate in a weight ratio of 10:90 to 80:20.

또한, 상기 골재는 굵은골재 45~85 중량%, 잔골재 10~45 중량%, 채움재 5~10 중량%로 사용하여 내유동성을 가지는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the aggregate provides low-noise asphalt concrete with improved anti-freezing and durability, characterized in that it has flow resistance by using 45 to 85% by weight of coarse aggregate, 10 to 45% by weight of fine aggregate, and 5 to 10% by weight of filler. .

또한, 상기 골재는 굵은골재 60~73 중량%, 잔골재 25~35 중량%, 채움재 2~5 중량%로 사용하여 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the aggregate provides a low-noise asphalt concrete with improved anti-icing and durability, characterized in that the aggregate is used in 60 to 73% by weight of coarse aggregate, 25 to 35% by weight of fine aggregate, and 2 to 5% by weight of filler.

또한, 상기 골재는 굵은골재 70~90 중량%, 잔골재 7~27 중량%, 채움재 3~8 중량%로 사용하여 배수성 및 투수성을 가지는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the aggregate is used as 70 to 90% by weight of coarse aggregate, 7 to 27% by weight of fine aggregate, and 3 to 8% by weight of filling material. to provide.

또한, 상기 저소음 아스팔트콘크리트는 하부에 10~20㎜, 상부에 5~8㎜ 골재를 사용하여 복층포장으로 형성되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트를 제공한다.In addition, the low-noise asphalt concrete provides low-noise asphalt concrete with improved anti-icing and durability, characterized in that it is formed in a multi-layer pavement using 10-20 mm of aggregate at the lower part and 5-8 mm of aggregate at the upper part.

또한, 상기의 저소음 아스팔트콘크리트를 시공하고, 그 시공면에 유면접착제를 도포한 후, 입도 1~15㎜의 칼라스톤과 접착제가 혼합된 칼라투수스톤이 적층되어 색상을 가지는 것을 특징으로 하는 저소음 아스팔트콘크리트 포장체를 제공한다.In addition, the low-noise asphalt concrete is constructed, and an oil level adhesive is applied to the construction surface, and then colored stones with a particle size of 1 to 15 mm and color permeable stones mixed with an adhesive are laminated to have a color. A concrete pavement is provided.

상기와 같이 본 발명에 따른 저소음 아스팔트콘크리트는 개질 아스팔트에 함유되는 폴리머 칩과 개질 탄성칩에 함유되는 폴리머 칩이 동일 성분으로 개질 탄성칩와 아스팔트간의 결합력 및 개질 탄성칩 와 골재간의 결합력을 크게 향상하여 저소음 아스팔트콘크리트의 내구성을 향상시킨 효과가 있다.As described above, in the low-noise asphalt concrete according to the present invention, the polymer chip contained in the modified asphalt and the polymer chip contained in the modified elastic chip are the same component. It has the effect of improving the durability of asphalt concrete.

또한, 아스팔트콘크리트 내부에 개질 탄성칩이 함유되어 저소음 기능이 향상되는 효과가 있다.In addition, there is an effect of improving the low-noise function by containing the modified elastic chip inside the asphalt concrete.

또한, 아스팔트콘크리트에 함유되는 개질 탄성칩에 축열재가 함유되어 겨울 철에 결빙 방지하여 도로의 미끄럼을 최소화할 수 있는 효과가 있다.In addition, since the modified elastic chip contained in the asphalt concrete contains a thermal storage material, there is an effect of preventing freezing in the winter and minimizing the slippage of the road.

또한, 골재와 혼합되기 전에 아스팔트에 폴리머 칩를 함유시켜 개질화 하는 프리믹싱형 저소음 아스팔트콘크리트로 제조방식으로 제조 및 시공성이 우수한 효과가 있다.In addition, it is a premixing type low-noise asphalt concrete that is reformed by containing polymer chips in the asphalt before being mixed with aggregate, and has excellent manufacturing and workability effects.

이하 본 발명에 첨부된 도면을 참조하여 본 발명의 바람직한 일실시예를 상세히 설명하기로 한다. 본 발명을 설명함에 있어, 관련된 공지기능 혹은 구성에 대한 구체적인 설명은 본 발명의 요지를 모호하지 않게 하기 위하여 생략한다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the gist of the present invention.

본 명세서에서 사용되는 정도의 용어 '약', '실질적으로' 등은 언급된 의미에 고유한 제조 및 물질 허용오차가 제시될 때 그 수치에서 또는 그 수치에 근접한 의미로 사용되고, 본 발명의 이해를 돕기 위해 정확하거나 절대적인 수치가 언급된 개시 내용을 비양심적인 침해자가 불법적으로 부당하게 이용하는 것을 방지하기 위해 사용된다.As used herein, the terms 'about', 'substantially' and the like are used in a sense at or close to the numerical value when the manufacturing and material tolerances inherent in the stated meaning are presented, and serve to enhance the understanding of the present invention. It is used to prevent an unconscionable infringer from illegally and unfairly using the disclosure, in which exact or absolute figures are mentioned to help.

본 발명은 골재, 개질 아스팔트, 개질 탄성칩를 혼합하여 골재 사이에 개질 탄성칩이 함유되도록 형성되는 아스팔트콘크리트로 도로에서 발생되는 소음을 저감시키는 저소음 아스팔트콘크리트에 관한 것이다.The present invention relates to low-noise asphalt concrete that reduces noise generated on roads by mixing aggregates, modified asphalt, and modified elastic chips so that the modified elastic chips are contained between the aggregates.

본 발명의 저소음 아스팔트콘크리트는 상기 골재 100중량부에 개질 아스팔트 3~10중량부, 개질 탄성칩 1~8중량부가 혼합되어 형성된다.The low-noise asphalt concrete of the present invention is formed by mixing 3 to 10 parts by weight of the modified asphalt and 1 to 8 parts by weight of the modified elastic chip to 100 parts by weight of the aggregate.

상기 골재는 비용절감 및 환경을 고려하여 폐아스팔트콘크리트 재생골재를 사용하는 것이 바람직할 것이다.As the aggregate, it will be preferable to use the recycled aggregate of reclaimed asphalt concrete in consideration of cost reduction and the environment.

상기 재생골재는 골재 중 10중량%이상 함유되는 것이 바람직하며 더욱 바람직하게는 50중량%이상 사용되는 것이다.The regenerated aggregate is preferably contained in an amount of 10% by weight or more of the aggregate, and more preferably 50% by weight or more.

본 발명의 개질 아스팔트는 프리믹스형으로 아스팔트, 스티렌뷰타디엔스티렌(SBS), 스티렌뷰타디엔고무(SBR), SBR라텍스, 스티렌이소프렌스티렌(SIS), 스티렌에틸렌뷰타디엔스티렌(SEBS) 중 어느 하나 또는 2이상의 폴리머 칩, 프로세스 오일로 형성된다.The modified asphalt of the present invention is a premix type, and any one or 2 of asphalt, styrene butadiene styrene (SBS), styrene butadiene rubber (SBR), SBR latex, styrene isoprene styrene (SIS), and styrene ethylene butadiene styrene (SEBS) The more polymer chips, the process oil is formed.

상기 개질 아스팔트는 아스팔트 100중량부에 폴리머 칩 3~20중량부, 프로세스 오일 0.1~10중량부가 혼합되어 형성되는 것으로 아스팔트를 약 130~170℃로 가열하고 폴리머 칩를 첨가하여 폴리머 칩이 완전히 용해되도록 교반한 후, 프로세스 오일을 첨가하여 교반하여 제조할 수 있을 것이다.The modified asphalt is formed by mixing 3 to 20 parts by weight of polymer chips and 0.1 to 10 parts by weight of process oil to 100 parts by weight of asphalt. The asphalt is heated to about 130-170° C., and polymer chips are added and stirred so that the polymer chips are completely dissolved. After that, it may be prepared by adding process oil and stirring.

상기 프로세스 오일을 첨가한 후에 저장안정제를 더 첨가할 수 있으며, 콜로이드 밀을 통해 아스팔트에 첨가된 폴리머 칩과 프로세스 오일이 균일하게 혼합되도록 형성하는 것이 바람직할 것이다.A storage stabilizer may be further added after adding the process oil, and it will be preferable to form a polymer chip added to the asphalt through a colloid mill and the process oil to be uniformly mixed.

상기 아스팔트는 아스팔트 PG등급 58-22, 64-22, 70-22, 76-22, 76-34, 82-28, 82-34 중 어느 하나 또는 2 이상의 혼합 아스팔트를 사용할 수 있을 것이다.As the asphalt, any one of asphalt PG grades 58-22, 64-22, 70-22, 76-22, 76-34, 82-28, 82-34, or a mixed asphalt of two or more may be used.

상기 프로세스 오일은 아로마틱계 오일, 나프텐계 오일, 식물계 오일, 동물계 오일 중 어느 하나 또는 2 이상의 혼합 오일을 사용할 수 있을 것이다.As the process oil, any one of aromatic oil, naphthenic oil, plant oil, and animal oil, or a mixed oil of two or more may be used.

상기 개질 탄성칩에는 축열재가 포함되어 아스팔트콘크리트에 결빙 방지 기능을 부여하게 된다.The modified elastic chip includes a heat storage material to give the asphalt concrete an anti-freezing function.

상기 개질 탄성칩은 상기 개질 아스팔트와 동일한 폴리머 칩 100중량부에 점착부여수지 5~30중량부, 프로세스 오일 1~10중량부, 축열재 1~30중량부가 혼합되어 형성되는 것으로 폴리머 칩, 점착부여수지, 프로세스 오일를 120~190℃에서 용융 및 혼합시켜 제조할 수 있는 것으로 압출기(extruder)를 통해 제조하는 것이 바람직할 것이다.The modified elastic chip is formed by mixing 5 to 30 parts by weight of a tackifying resin, 1 to 10 parts by weight of a process oil, and 1 to 30 parts by weight of a heat storage material to 100 parts by weight of the same polymer chip as the modified asphalt. It can be produced by melting and mixing resin and process oil at 120 to 190°C, and it is preferable to manufacture it through an extruder.

싱기 개질 탄성칩은 저소음 아스팔트콘크리트 내부에 함유되어 도로의 충격을 완화하고 소음을 흡수하는 작용을 하는 것으로 입도가 너무 작으면 충격완화 및 흡음기능이 저하될 수 있으며, 입도가 너무 크면 저소음 아스팔트콘크리트의 내구성이 저하될 수 있으므로 입도 1~10㎜의 칩으로 제조하는 것이 바람직하며, 더욱 바람직하게는 입도 2~7㎜로 제조되는 것이다.Shingi modified elastic chips are contained inside low-noise asphalt concrete to relieve road impact and absorb noise. Since durability may be reduced, it is preferable to manufacture a chip having a particle size of 1 to 10 mm, and more preferably, a chip having a particle size of 2 to 7 mm.

상기 점착부여수지는 로진 또는 석유수지를 사용할 수 있을 것이다.The tackifying resin may use rosin or petroleum resin.

상기 프로세스 오일은 아로마틱계 오일, 나프텐계 오일, 식물계 오일, 동물계 오일 중 어느 하나 또는 2 이상의 혼합 오일을 사용할 수 있으나, 상기 개질 아스팔트에 사용된 것과 동일한 프로세스 오일을 사용하는 것이 바람직할 것이다.As the process oil, any one of aromatic oil, naphthenic oil, vegetable oil, animal oil, or a mixture of two or more may be used, but it is preferable to use the same process oil as that used for the modified asphalt.

상기 개질 탄성칩에 함유되는 축열재는 열을 흡수한 후, 일정이하의 온도에서는 열을 방출하는 특성이 가지는 물질로 본 발명에서는 아스팔트콘크리트의 물성을 저해하지 않는 무기물을 사용하는 것이 바람직한 것으로 블랙카본, 탄소나노튜브, 흑연중에서 선택되는 하나 또는 2이상의 혼합물을 사용하는 것이 바람직할 것이다.The heat storage material contained in the modified elastic chip absorbs heat and then emits heat at a temperature below a certain level. In the present invention, it is preferable to use an inorganic material that does not impair the physical properties of asphalt concrete, black carbon, It will be preferable to use one or a mixture of two or more selected from carbon nanotubes and graphite.

상기 축열재는 개질 탄성칩에 함유되어 아스팔트콘크리트 제조시 바닥에 깔리지 않고 균일하게 분산하게 된다.The heat storage material is contained in the modified elastic chip to be uniformly dispersed without being spread on the floor during the manufacture of asphalt concrete.

상기와 같이 제조되는 개질 아스팔트 및 개질 탄성칩은 골재와 혼합되어 본 발명의 저소음 아스팔트콘크리트로 형성된다.The modified asphalt and modified elastic chip prepared as described above are mixed with aggregate to form the low-noise asphalt concrete of the present invention.

본 발명의 저소음 아스팔트콘크리트는 골재를 약 150~200℃로 가열한 후, 개질 아스팔트를 첨가하여 고르게 혼합하고, 약 130~180℃에서 개질 탄성칩을 첨가하여 혼합하는 것이 바람직할 것이다.In the low-noise asphalt concrete of the present invention, after the aggregate is heated to about 150 to 200 ° C, the modified asphalt is added and mixed evenly, and the modified elastic chip is added and mixed at about 130 to 180 ° C.

상기 개질 탄성칩을 첨가할 때의 온도가 130℃ 미만이면 점도가 높아 개질 탄성칩의 균일한 혼합이 저하될 수 있으며, 180℃를 초과하면 개질 탄성칩이 용융되어 저소음 기능이 저하될 수 있다.If the temperature at which the modified elastic chip is added is less than 130° C., the viscosity is high, and uniform mixing of the modified elastic chip may be reduced.

즉, 상기 개질 탄성칩은 저소음 아스팔트콘크리트 내부에서 칩형태를 유지하면서 아스팔트콘크리트의 탄성을 향상시키고 저소음 기능을 부여하게 된다.That is, the modified elastic chip improves the elasticity of the asphalt concrete while maintaining the chip shape inside the low-noise asphalt concrete and provides a low-noise function.

본 발명의 저소음 아스팔트콘크리트는 상기 골재 100중량부에 개질 아스팔트 3~10중량부, 개질 탄성칩 1~8중량부가 혼합되는 것이 바람직할 것이다.In the low-noise asphalt concrete of the present invention, it will be preferable that 3 to 10 parts by weight of the modified asphalt and 1 to 8 parts by weight of the modified elastic chip are mixed with 100 parts by weight of the aggregate.

상기와 같이 형성되는 본 발명의 저소음 아스팔트콘크리트는 내부에 함유된 개질 탄성칩으로 인해 저소음 아스팔트콘크리트의 충격 흡수 및 소음 흡수로 저소음 기능을 갖게 된다.The low-noise asphalt concrete of the present invention formed as described above has a low-noise function by absorbing shock and noise of the low-noise asphalt concrete due to the modified elastic chip contained therein.

또한, 개질 아스팔트의 개질제로 사용되는 폴리머 칩과 개질 탄성칩의 주요 성분인 폴리머 칩이 동일 성분으로 쉽게 융화되어 부착성이 향상되어 개질 탄성칩이 아스팔트콘크리트에서 이탈되는 것을 방지하여 아스팔트콘크리트의 내구성을 향상시킨다.In addition, the polymer chip used as the modifier of the modified asphalt and the polymer chip, which is the main component of the modified elastic chip, are easily blended into the same component, and the adhesion is improved, thereby preventing the modified elastic chip from being separated from the asphalt concrete, thereby improving the durability of the asphalt concrete. improve

상기 개질 아스팔트와 개질 탄성칩의 부착성을 향상시키기 위해 개질 아스팔트와 개질 탄성칩에 함유되는 프로세스 오일을 동일한 오일으로 사용하는 것이 바람직할 것이다.In order to improve adhesion between the modified asphalt and the modified elastic chip, it is preferable to use the same oil as the process oil contained in the modified asphalt and the modified elastic chip.

또한, 본 발명의 저소음 아스팔트콘크리트의 내구성을 향상시키기 위해 접착증진제를 더 함유시킬 수 있다.In addition, in order to improve the durability of the low-noise asphalt concrete of the present invention, it may further contain an adhesion promoter.

상기 접착증진제는 친수기(親水基)와 친유기를 동시에 가지는 화합물로 다양한 반응기를 통해 골재간의 결합, 아스팔트간의 결합, 개질 탄성칩간의 결합 및 골재와 개질 아스팔트의 결합, 골재와 개질 탄성칩의 결합을 유도하여 저소음 아스팔트콘크리트의 내구성을 향상시키게 된다.The adhesion promoter is a compound having a hydrophilic group and a lipophilic group at the same time and induces bonding between aggregates, asphalt, modified elastic chip, aggregate and modified asphalt, and aggregate and modified elastic chip through various reactive groups. This improves the durability of low-noise asphalt concrete.

상기 접착증진제는 지방산염, 알코올 황산에스테르염, 알킬 또는 알킬아릴술폰산염, 황산화유, 아민염, 4차 암모늄, 알킬피리늄염 중 하나 또는 2 이상의 혼합물을 사용할 수 있을 것이다.The adhesion promoter may use one or a mixture of two or more of fatty acid salts, alcohol sulfate ester salts, alkyl or alkylaryl sulfonates, sulfated oil, amine salts, quaternary ammonium salts, and alkylpyrinium salts.

상기 접착증진제는 저소음 아스팔트콘크리트 제조시에 첨가되는 것이 바람직하며, 첨가되는 아스팔트 함량의 0.001~1.0중량%함유되는 것이 바람직할 것이다.The adhesion promoter is preferably added during the production of low-noise asphalt concrete, and preferably contains 0.001 to 1.0% by weight of the added asphalt content.

상기 접착증진제는 첨가시에 개질 아스팔트의 점도를 증가시킬 수 있으므로 개질 탄성칩과 동시에 첨가하거나, 또는 개질 탄성칩 첨가 후에 첨가하는 것이 바람직할 것이다.Since the adhesion promoter can increase the viscosity of the modified asphalt when added, it is preferable to add it simultaneously with the modified elastic chip or after adding the modified elastic chip.

상기와 같이 본 발명의 저소음 아스팔트콘크리트는 골재와 혼합되기 전에 개질 아스팔트로 제조 후, 현장에서 골재, 개질 아스팔트, 개질 탄성칩을 혼합하여 시공할 수 있는 프리믹싱형 저소음 아스팔트콘크리트로 제조방식으로 시공성이 우수하다.As described above, the low-noise asphalt concrete of the present invention is a premixed low-noise asphalt concrete that can be constructed by mixing the aggregate, the modified asphalt, and the modified elastic chip on site after being manufactured as modified asphalt before being mixed with the aggregate. great.

또한, 본 발명의 저소음 아스팔트콘크리트는 제조시에 색상을 가지는 무기질 안료를 같이 첨가하여 시인성을 가지는 칼라 아스팔트콘크리트로 형성할 수 있을 것이다.In addition, the low-noise asphalt concrete of the present invention may be formed into colored asphalt concrete having visibility by adding an inorganic pigment having a color at the time of manufacture.

상기 무기질 안료는 아스팔트콘크리트 중량의 0.5~10중량% 첨가될 수 있을 것이다.The inorganic pigment may be added in an amount of 0.5 to 10% by weight based on the weight of the asphalt concrete.

상기의 본 발명에 따른 저소음 아스팔트콘크리트에 사용되는 골재의 입도를 조절하여 내유동성, 저소음성의 향상 또는 배수성 및 투수성 아스팔트콘크리트를 제조할 수 있다.By controlling the particle size of the aggregate used in the low-noise asphalt concrete according to the present invention, it is possible to improve flow resistance and low noise or to manufacture drainage and water permeability asphalt concrete.

상기 내유동성을 가지는 저소음 아스팔트콘크리트로 제조할 경우에는 상기 골재를 굵은골재 45~85 중량%, 잔골재 10~45 중량%, 채움재 5~10 중량%로 구성하여 제조할 수 있다.In the case of manufacturing with the low-noise asphalt concrete having the flow resistance, the aggregate may be prepared by composing 45 to 85% by weight of coarse aggregate, 10 to 45% by weight of fine aggregate, and 5 to 10% by weight of filler.

또한, 골재의 함량을 조절하여 상기 내유동성 및 저소음성을 향상시킬 수 있는 것으로 골재를 굵은골재 60~73 중량%, 잔골재 25~35 중량%, 채움재 2~5 중량%로 사용할 수 있으며, 더욱 자세하게는 5~13mm 입도의 굵은 골재, 0.6~2.5mm 입도의 잔골재를 사용하여 골재와 골재간의 맞물림 효과를 높게하여 표면공극율 유지하여 저소음 기능 향상시키면서, 내부는 내유동성 포장과 동등한 수밀성 및 내구성을 가지는 아스팔트콘크리트를 제조할 수 있다.In addition, it is possible to improve the flow resistance and low noise by controlling the content of the aggregate, and the aggregate can be used in 60 to 73% by weight of coarse aggregate, 25 to 35% by weight of fine aggregate, and 2 to 5% by weight of filler, in more detail uses coarse aggregate with a particle size of 5 to 13 mm and fine aggregate with a particle size of 0.6 to 2.5 mm to increase the interlocking effect between the aggregate and maintain the surface porosity to improve the low noise function, while the interior has the same watertightness and durability as the flow-resistant pavement. Concrete can be produced.

또한, 배수성 및 투수성을 가지는 저소음 아스팔트콘크리트로 제조할 경우에는 골재를 굵은골재 70~90 중량%, 잔골재 7~27 중량%, 채움재 3~8 중량%로 구성하여 제조할 수 있다.In addition, in the case of producing low-noise asphalt concrete having drainage and water permeability, the aggregate can be manufactured by 70 to 90% by weight of coarse aggregate, 7 to 27% by weight of fine aggregate, and 3 to 8% by weight of filler.

또한, 본 발명의 저소음 아스팔트콘크리트는 하부에는 10~20㎜, 상부에 5~8㎜의 골재를 사용하여 복층포장으로 형성할 수 있을 것이다.In addition, the low-noise asphalt concrete of the present invention may be formed as a multi-layer pavement using aggregates of 10 to 20 mm in the lower part and 5 to 8 mm in the upper part.

또한, 상기의 저소음 아스팔트콘크리트의 물성을 더욱 향상시키기 위해 폴리프로필렌섬유, 폴리에스테르섬유, 아크릴섬유, 셀룰로우스섬유, 카본섬유, 유리섬유, 아라미드섬유 등의 합성섬유를 첨가할 수 있다. 상기 합성섬유의 첨가량은 저소음 아스팔트콘크리트 100 중량부에 상기 합성섬유 중 하나 또는 2이상을 혼합한 강도보강용 섬유 0.01~0.2 중량부를 첨가하는 것이 바람직하다. In addition, in order to further improve the physical properties of the low-noise asphalt concrete, synthetic fibers such as polypropylene fibers, polyester fibers, acrylic fibers, cellulose fibers, carbon fibers, glass fibers, and aramid fibers may be added. The amount of the synthetic fiber is preferably added to 100 parts by weight of low-noise asphalt concrete, 0.01 to 0.2 parts by weight of a fiber for strength reinforcement in which one or two or more of the synthetic fibers are mixed.

또한, 상기의 저소음 아스팔트콘크리트의 물성을 더욱 향상시키기 위한 또다른 방법으로 C45~C100(탄소수가 45~100개)인 FT왁스(Fischer-Tropsch공법으로 제조된 왁스)를 첨가할 수 있다.In addition, as another method for further improving the physical properties of the low-noise asphalt concrete, FT wax (wax prepared by the Fischer-Tropsch method) having C 45 to C 100 (45 to 100 carbon atoms) may be added.

또한, 최근에는 주차장이나 통행로의 표시등으로 다양한 색상의 아스팔트콘크리트가 요구되고 있어 본 발명의 저소음 아스팔트콘크리트로 색상을 가지는 저소음 아스팔트콘크리트 포장체를 제조할 수 있다.In addition, since asphalt concrete of various colors is recently required as a light for parking lot or passageway, a low-noise asphalt concrete pavement having a color can be manufactured with the low-noise asphalt concrete of the present invention.

상기의 저소음 아스팔트콘크리트를 시공하고, 그 시공면에 유면접착제를 도포한 후, 입도 1~15㎜의 칼라스톤과 접착제가 혼합된 칼라스톤이 적층하여 제조할 수 있다.After constructing the above-mentioned low-noise asphalt concrete, applying an oil-based adhesive to the construction surface, color stones having a particle size of 1 to 15 mm and color stones mixed with an adhesive can be laminated to manufacture.

상기 유면접착제는 기름이 부착되어 있는 표면에 접착제를 도포할 경우 기름이 접착제 중에 흡수, 확산되어 높은 접착 강도를 나타내는 접착제로서 에폭시 수지계, 제2세대 아크릴(SGA)계, 시아노아크릴레이트계, 혐기성 아크릴레이트계, 폴리우레탄계, 비닐에스테르(불포화 폴리에스테르)계 등의 유면 접착제를 사용할 수 있다.When the adhesive is applied to the surface to which the oil is attached, the oil is absorbed and diffused into the adhesive and exhibits high adhesive strength. Epoxy resin-based, second-generation acrylic (SGA)-based, cyanoacrylate-based, anaerobic An oil-based adhesive such as an acrylate-based, polyurethane-based, or vinyl ester (unsaturated polyester)-based adhesive can be used.

상기 칼라스톤은 입도크기 1~15㎜의 칼라스톤과 접착제를 중량비 75:25~95로 혼합되어 제조되는 것으로 상기 칼라스톤은 콩자갈, 종석, 규사나 천연 광산에서 생산되는 화강암, 대리암 계통의 백색, 흑색, 적색, 녹색, 황색, 옥색 등 독특한 색상의 자연석으로 건축용 판석, 석재조형물 등을 만들고 남은 폐석을 파쇄, 선별한 골재를 사용할 수 있다.The color stone is manufactured by mixing color stone with a particle size of 1 to 15 mm and an adhesive in a weight ratio of 75:25 to 95, and the color stone is white of granite and marble produced in natural mines such as bean gravel, keystone, silica sand. , black, red, green, yellow, jade, etc. of natural stones of unique colors can be used to make flagstones and stone sculptures for construction, crushing and screening the remaining waste-rock.

또한, 제작비의 절약 및 자연석으로 구현되지 못하는 색상을 위해 칼라 도장된 인조석을 사용할 수도 있다.In addition, artificial stone painted in color may be used to save manufacturing cost and to provide a color that cannot be realized with natural stone.

상기 칼라스톤은 도로의 상측으로 1~3㎝ 두께로 포장되는 것이 바람직할 것이다.The color stone will preferably be paved with a thickness of 1-3 cm on the upper side of the road.

이하 본 발명의 저소음 아스팔트콘크리트의 제조에 대한 실시예를 나타내지만, 이에 한정되는 것은 아니다.Hereinafter, examples for the production of low-noise asphalt concrete of the present invention are shown, but are not limited thereto.

실시예 1Example 1

개질 아스팔트 제조: 공용성등급 64-22의 아스팔트 100중량부에 폴리머 칩으로 스티렌이소프렌스티렌(SIS)을 10중량부, 프로세스 오일로 나프텐계 오일을 7중량부를 첨가하고 약 140~150℃에서 혼합하여 개질 아스팔트를 제조하였다.Manufacture of modified asphalt: 10 parts by weight of styrene isoprene styrene (SIS) as a polymer chip and 7 parts by weight of naphthenic oil as a process oil are added to 100 parts by weight of asphalt of compatibility grade 64-22, and mixed at about 140 to 150° C. Asphalt was prepared.

개질 탄성칩 제조: 폴리머 칩으로 스티렌이소프렌스티렌(SIS) 100중량부에 점착부여수지인 석유수지를 13중량부, 프로세스 오일로 나프텐계 오일을 5중량부, 축열재로 블랙카본을 10중량부를 첨가하고 약 160~170℃에서 혼합하여 입도 약 2~4㎜ 개질 탄성칩을 제조하였다.Manufacture of modified elastic chip: Add 13 parts by weight of petroleum resin as a tackifying resin to 100 parts by weight of styrene isoprene styrene (SIS) as a polymer chip, 5 parts by weight of naphthenic oil as a process oil, and 10 parts by weight of black carbon as a heat storage material and mixed at about 160 to 170° C. to prepare an elastic chip having a particle size of about 2 to 4 mm.

저소음 아스팔트콘크리트 제조: 골재 100중량부에 상기에서 제조된 개질 아스팔트 7중량부, 개질 탄성칩 2중량부를 혼합하여 저소음 아스팔트콘크리트를 제조하였다.Production of low-noise asphalt concrete: 7 parts by weight of the modified asphalt prepared above and 2 parts by weight of the modified elastic chip were mixed with 100 parts by weight of aggregate to prepare low-noise asphalt concrete.

상기 골재는 골재입도율을 KS F 2357규격의 굵은골재 60 중량%, KS F 2357규격의 잔골재 37 중량%, KS F 3501규격의 채움재 3.0 중량%로 조성한 골재를 사용하였다.For the aggregate, the aggregate particle size ratio of 60 wt% of coarse aggregate of KS F 2357 standard, 37 wt% of fine aggregate of KS F 2357 standard, and 3.0 wt% of filler of KS F 3501 standard was used.

상기 골재를 약 170℃로 가열한 후, 개질 아스팔트를 첨가하여 고르게 혼합하고, 약 150℃에서 개질 탄성칩을 첨가하고 혼합하여 본 발명에 따른 저소음 아스팔트콘크리트를 제조하였다.After the aggregate was heated to about 170°C, modified asphalt was added and mixed evenly, and the modified elastic chip was added and mixed at about 150°C to prepare low-noise asphalt concrete according to the present invention.

실시예 2Example 2

상기 실시예 1과 동일하게 제조하였으나, 상기 개질 탄성칩을 첨가할 때, 접착증진제로 1-decanamine을 첨가된 아스팔트 중량의 0.05중량%함유시켜 본 발명에 따른 저소음 아스팔트콘크리트를 제조하였다.It was prepared in the same manner as in Example 1, but when the modified elastic chip was added, 0.05 wt% of the weight of the asphalt to which 1-decanamine was added as an adhesion promoter was included to prepare low-noise asphalt concrete according to the present invention.

비교예 1Comparative Example 1

상기 실시예 1과 동일하게 제조하였으나, 개질 탄성칩에 축열재를 함유시키지 않았으며, 상기 개질 탄성칩에는 폴리머 칩으로 부틸고무(BR)를 첨가하여 저소음 아스팔트콘크리트를 제조하였다.Although prepared in the same manner as in Example 1, the modified elastic chip did not contain a heat storage material, and butyl rubber (BR) as a polymer chip was added to the modified elastic chip to prepare low-noise asphalt concrete.

비교예 2Comparative Example 2

상기 실시예 1과 동일하게 제조하였으나, 개질 탄성칩을 첨가하지 않고 아스팔트콘크리트를 제조하였다.It was prepared in the same manner as in Example 1, but asphalt concrete was prepared without adding a modified elastic chip.

◈ 비교 실험◈ Comparative experiment

상기와 같이 제조된 실시예 1,2 및 비교예 1,2의 아스팔트콘크리트를 공시체로 제작한 후, 마샬안정도, 간접인장강도, 회복탄성계수, 동적안정도. 근거리 소음을 측정하였다.After preparing the asphalt concrete of Examples 1 and 2 and Comparative Examples 1 and 2 prepared as described above as a specimen, Marshall stability, indirect tensile strength, modulus of elasticity of recovery, and dynamic stability. Near-field noise was measured.

상기 아스팔트콘크리트 공시체를 제조 7일 후의 마샬안정도, 간접인장강도, 회복탄성계수, 동적안정도, 근거리 소음을 측정하여 표 1에 나타내었다.Marshall stability, indirect tensile strength, elastic modulus of elasticity, dynamic stability, and near-field noise were measured for the asphalt concrete specimen 7 days after manufacture, and are shown in Table 1.

◎ 실험 방법◎ Experiment method

1) 마샬안정도시험은 아스팔트 혼합물의 흐름에 대한 소성 저항성을 측정하기 위함이며 마샬시험기를 사용한 역청혼합물의 소성흐름에 대한 저항력 시험방법(KS F 2337)에 따라 측정하였다.1) The Marshall stability test is to measure the plastic resistance to the flow of the asphalt mixture, and it was measured according to the test method (KS F 2337) for the resistance to plastic flow of the bituminous mixture using a Marshall tester.

2) 간접인장강도시험은 아스팔트콘크리트의 할렬인장에 대한 간접강도를 파악할 수 있는 측정방법으로 역청혼합물의 간접 인장강도시험(KS F 2382)에 따라 측정하였다.2) The indirect tensile strength test is a measurement method that can determine the indirect strength of asphalt concrete for split tension, and was measured according to the indirect tensile strength test of bitumen mixtures (KS F 2382).

3) 회복탄성계수시험은 차량의 반복적인 하중에 대한 아스팔트 혼합물의 온도별 회복변형 거동특성을 모사하기 위한 측정방법으로 회복탄성계수시험(KS F 2376)에 따라 5℃, 25℃, 40℃ 온도에서 각각 저온, 상온, 고온 특성을 측정하였다.3) The modulus of elasticity test is a measurement method for simulating the recovery deformation behavior of the asphalt mixture for each temperature in response to the repetitive load of the vehicle. Low-temperature, room-temperature, and high-temperature characteristics were measured respectively.

4) 휠트랙킹시험에 따른 동적안정도는 아스팔트 혼합물의 소성변형 동적저항성을 평가할 수 있는 시험으로서 이 때 측정되는 동적안정도(회/mm)는 아스팔트 콘크리트 혼합물의 휠트랙킹시험(KS F 2374)방법에 따라 측정하였다.4) The dynamic stability according to the wheel tracking test is a test that can evaluate the plastic deformation dynamic resistance of the asphalt mixture. measured.

5) 근거리 소음(CPX)는 차량 타이어의 중앙을 기준으로 20cm 떨어진 거리에서 지면과의 높이를 10cm로 하고 앞뒤에 마이크로폰을 설치하고, 20 ℃ 대기온도에서 90 km/h의 속도로 차량이 주행하고 소음 측정으로 ISO Standard 11819-2의 표준에 따라 측정하였다.5) Near-field noise (CPX) is set at a distance of 20 cm from the center of the vehicle tire at a distance of 20 cm from the ground, with microphones installed at the front and rear, and the vehicle is driven at a speed of 90 km/h at 20 ° C. Noise was measured according to the standard of ISO Standard 11819-2.

항목Item 시험방법Test Methods 단위unit 실시예1Example 1 실시예2Example 2 비교예1Comparative Example 1 비교예2Comparative Example 2 마샬 안정도Marshall Stability KS F 2337KS F 2337 NN 9,6989,698 10,00510,005 8,4268,426 8,2928,292 간접 인장강도indirect tensile strength KS F 2382KS F 2382 kg/㎠kg/cm2 0.880.88 0.920.92 0.820.82 0.810.81 회복탄성계수modulus of elasticity KS F 2376KS F 2376 MPaMPa 5℃5℃ 8,6858,685 8,9258,925 8,3498,349 8,0898,089 25℃25℃ 2,0532,053 2,0882,088 1,9971997 1,8951,895 40℃40℃ 1,2251,225 1,2711,271 1,1521,152 1,1121,112 동적 안정도dynamic stability KS F 2374KS F 2374 회/㎜times/mm 1,0571,057 1,1181,118 1,0031,003 953953 근거리 소음(CPX)Near Field Noise (CPX) ISO Standard 11819-2ISO Standard 11819-2 dBdB 84.984.9 86.286.2 89.789.7 101.1101.1

상기 표 1에 나타난 바와 같이 본 발명에 따른 저소음 아스팔트콘크리트인 실시예 1,2는 비교예 1,2와 비교하여 마샬안정도, 간접인장강도, 회복탄성계수, 동적안정도, 근거리 소음가 모두 우수한 것으로 내구성이 우수하면서 저소음 기능이 우수한 것을 알 수 있다.As shown in Table 1, Examples 1 and 2, which are low-noise asphalt concretes according to the present invention, were superior in Marshall stability, indirect tensile strength, modulus of elasticity, dynamic stability, and near-field noise as compared to Comparative Examples 1 and 2, and had excellent durability. It can be seen that the excellent low-noise function is excellent.

즉, 탄성칩이 함유되지 않은 비교예 2와 비교하여 실시예 1,2는 10dB이상의 소음이 저감된 것으로 저소음 기능이 매우 우수한 것을 알 수 있다.That is, as compared with Comparative Example 2 in which the elastic chip was not contained, in Examples 1 and 2, the noise was reduced by 10 dB or more, and it can be seen that the low noise function was very excellent.

또한, 탄성칩이 사용된 비교예 1와 비교하여 실시예 1,2가 마샬안정도, 간접인장강도, 회복탄성계수, 동적안정도이 우수한 것으로 개질 아스팔트, 개질 탄성칩에 동일한 폴리머 칩을 사용할 경우 내구성이 향상되는 것을 알 수 있으며, 저소음 기능도 향상되는 것을 알 수 있다.In addition, compared to Comparative Example 1 in which the elastic chip is used, Examples 1 and 2 have excellent Marshall stability, indirect tensile strength, elastic modulus and dynamic stability, and when the same polymer chip is used for the modified asphalt and the modified elastic chip, durability is improved It can be seen that the low noise function is also improved.

또한, 실시예 1과 실시예 2를 비교하면 실시예 2가 실시예 1 보다 마샬안정도, 간접인장강도, 회복탄성계수, 동적안정도가 우수한 것으로 접착증진제를 사용할 경우 내구성이 향상되는 것을 알 수 있다.In addition, comparing Example 1 and Example 2, Example 2 is superior to Example 1 in Marshall stability, indirect tensile strength, elastic modulus of elasticity, and dynamic stability, and it can be seen that durability is improved when an adhesion promoter is used.

상기 아스팔트콘크리트 공시체를 제조 7일 후의 저온에서의 미끄럼 저항 시험 및 국제마찰지수를 측정하여 표 2에 나타내었다.Table 2 shows the slip resistance test and the international friction index at low temperature after 7 days of manufacturing the asphalt concrete specimen.

◎ 실험 방법◎ Experiment method

1) 미끄럼 저항 시험은 저온에서 결빙 형성으로 인한 미끄럼 저항을 측정하기 위함으로 EN 13036-4에 제시된 시험방법을 통해 측정하였다.1) The sliding resistance test was performed by the test method presented in EN 13036-4 to measure the sliding resistance due to the formation of ice at low temperatures.

2) 국제마찰지수(IFI)는 저온에서 결빙 형성으로 인한 마찰력 변화를 측정하기 위함으로 ASTM E1960-07에 제시된 시험방법을 통해 측정하였다.2) The International Friction Index (IFI) was measured using the test method presented in ASTM E1960-07 to measure the change in frictional force due to the formation of ice at low temperatures.

구분division 실시예1Example 1 실시예2Example 2 비교예1Comparative Example 1 비교예2Comparative Example 2 미끄럼 저항 시험skid resistance test -7℃-7℃ 2929 2929 2525 2424 -3℃-3℃ 4747 4949 3535 3232 0℃0℃ 7575 7474 6767 6161 국제마찰지수International Friction Index -3.6℃-3.6℃ 0.25980.2598 0.26240.2624 0.13920.1392 0.15220.1522 -1.6℃-1.6℃ 0.25880.2588 0.26170.2617 0.14050.1405 0.15250.1525

표 2에서와 같이 본 발명에 따른 저소음 아스팔트콘크리트인 실시예 1,2는 비교예 1,2와 비교하여 미끄럼 저항성을 가지고, 마찰력이 큰 것으로 본 발명에 따른 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트가 저온에서 결빙 형성을 방지하는 것을 알 수 있다.As shown in Table 2, Examples 1 and 2, which are low-noise asphalt concretes according to the present invention, have slip resistance and high frictional force as compared to Comparative Examples 1 and 2, and are low-noise asphalt concretes with improved anti-freezing and durability according to the present invention. It can be seen that the formation of ice at low temperatures was prevented.

Claims (13)

골재, 개질 아스팔트, 개질 탄성칩를 혼합하여 형성되는 내구성이 향상되는 저소음 아스팔트콘크리트에 있어서,
상기 개질 아스팔트는 아스팔트, 스티렌뷰타디엔스티렌(SBS), 스티렌뷰타디엔고무(SBR), SBR라텍스, 스티렌이소프렌스티렌(SIS), 스티렌에틸렌뷰타디엔스티렌(SEBS) 중 어느 하나 또는 2이상의 폴리머 칩, 프로세스 오일로 형성되고,
상기 개질 탄성칩은 상기 개질 아스팔트와 동일한 폴리머 칩, 점착부여수지, 프로세스 오일로 형성되며,
상기 개질 탄성칩에 축열재가 더 포함되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.In the low-noise asphalt concrete with improved durability formed by mixing aggregate, modified asphalt, and modified elastic chip,
The modified asphalt is any one or two or more polymer chips, process formed from oil,
The modified elastic chip is formed of the same polymer chip, tackifying resin, and process oil as the modified asphalt,
Low-noise asphalt concrete with improved anti-icing and durability, characterized in that the modified elastic chip further includes a heat storage material. 제1항에 있어서,
상기 골재 100중량부에 개질 아스팔트 3~10중량부, 개질 탄성칩 1~8중량부가 혼합되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
Low noise asphalt concrete with improved anti-icing and durability, characterized in that 3 to 10 parts by weight of modified asphalt and 1 to 8 parts by weight of modified elastic chips are mixed in 100 parts by weight of the aggregate. 제1항에 있어서,
상기 개질 아스팔트는 아스팔트 100중량부에 폴리머 칩 3~20중량부, 프로세스 오일 0.1~10중량부가 혼합되어 형성되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The modified asphalt is low-noise asphalt concrete with improved anti-icing and durability, characterized in that it is formed by mixing 3 to 20 parts by weight of polymer chips and 0.1 to 10 parts by weight of process oil to 100 parts by weight of asphalt. 제1항에 있어서,
상기 개질 탄성칩은 폴리머 칩 100중량부에 점착부여수지 5~30중량부, 프로세스 오일 1~10중량부, 축열재 1~30중량부가 혼합되어 형성되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The modified elastic chip is formed by mixing 5 to 30 parts by weight of a tackifier resin, 1 to 10 parts by weight of process oil, and 1 to 30 parts by weight of a heat storage material to 100 parts by weight of the polymer chip. Low noise asphalt concrete. 제1항에 있어서,
상기 아스팔트는 아스팔트 PG등급 58-22, 64-22, 70-22, 76-22, 76-34, 82-28, 82-34 중 어느 하나 또는 2 이상 혼합물인 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The asphalt is asphalt PG grade 58-22, 64-22, 70-22, 76-22, 76-34, 82-28, 82-34, characterized in that any one or a mixture of two or more anti-icing and durability Improved low-noise asphalt concrete. 제1항에 있어서,
상기 축열재는 블랙카본, 탄소나노튜브, 흑연 중에서 선택되는 하나 또는 2이상의 혼합물인 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The heat storage material is black carbon, carbon nanotubes, low noise asphalt concrete with improved durability, characterized in that one or a mixture of two or more selected from black carbon. 제1항에 있어서,
상기 저소음 아스팔트콘크리트에 무기질 안료를 포함시켜 시인성을 가지는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
Low-noise asphalt concrete with improved anti-icing and durability, characterized in that it has visibility by including inorganic pigments in the low-noise asphalt concrete. 제1항에 있어서,
상기 골재는 재생골재와 일반골재를 중량비 10:90~80:20로 혼합한 혼합골재를 사용하여 형성되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The low-noise asphalt concrete with improved anti-freezing and durability, characterized in that the aggregate is formed using a mixed aggregate obtained by mixing regenerated aggregate and general aggregate in a weight ratio of 10:90 to 80:20. 제1항에 있어서,
상기 골재는 굵은골재 45~85 중량%, 잔골재 10~45 중량%, 채움재 5~10 중량%로 사용하여 내유동성을 가지는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The low-noise asphalt concrete with improved anti-freezing and durability, characterized in that it has flow resistance by using 45 to 85% by weight of coarse aggregate, 10 to 45% by weight of fine aggregate, and 5 to 10% by weight of filler. 제1항에 있어서,
상기 골재는 굵은골재 60~73 중량%, 잔골재 25~35 중량%, 채움재 2~5 중량%로 사용하여 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The low-noise asphalt concrete with improved anti-freezing and durability, characterized in that the aggregate is used in 60 to 73% by weight of coarse aggregate, 25 to 35% by weight of fine aggregate, and 2 to 5% by weight of filler. 제1항에 있어서,
상기 골재는 굵은골재 70~90 중량%, 잔골재 7~27 중량%, 채움재 3~8 중량%로 사용하여 배수성 및 투수성을 가지는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The low-noise asphalt concrete with improved anti-freezing and durability, characterized in that it has drainage and water permeability by using 70 to 90% by weight of coarse aggregate, 7 to 27% by weight of fine aggregate, and 3 to 8% by weight of filler. 제1항에 있어서,
상기 저소음 아스팔트콘크리트는 하부에 10~20㎜, 상부에 5~8㎜ 골재를 사용하여 복층포장으로 형성되는 것을 특징으로 하는 결빙 방지 및 내구성이 향상되는 저소음 아스팔트콘크리트.According to claim 1,
The low-noise asphalt concrete is formed in a multi-layer pavement using 10-20 mm of aggregate at the bottom and 5-8 mm at the top. 제1항 내지 제12항 중 어느 한 항의 저소음 아스팔트콘크리트를 시공하고, 그 시공면에 유면접착제를 도포한 후, 입도 1~15㎜의 칼라스톤과 접착제가 혼합된 칼라투수스톤이 적층되어 색상을 가지는 것을 특징으로 하는 저소음 아스팔트콘크리트 포장체.13. The low-noise asphalt concrete of any one of claims 1 to 12 is constructed, and an oil-based adhesive is applied to the construction surface, and then colored stone with a particle size of 1 to 15 mm and a color permeable stone mixed with an adhesive are laminated to change the color. Low noise asphalt concrete pavement, characterized in that it has.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114836051A (en) * 2022-06-02 2022-08-02 江苏亿虎沥青材料有限公司 PG82-22 grade modified asphalt and its production method
CN116253534A (en) * 2023-02-22 2023-06-13 招商局重庆交通科研设计院有限公司 High-durability thin-layer cover surface repair material and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114836051A (en) * 2022-06-02 2022-08-02 江苏亿虎沥青材料有限公司 PG82-22 grade modified asphalt and its production method
CN114836051B (en) * 2022-06-02 2024-01-23 江苏亿虎沥青材料有限公司 PG82-22 grade modified asphalt and production method thereof
CN116253534A (en) * 2023-02-22 2023-06-13 招商局重庆交通科研设计院有限公司 High-durability thin-layer cover surface repair material and preparation method thereof
CN116253534B (en) * 2023-02-22 2024-05-24 招商局重庆交通科研设计院有限公司 High-durability thin-layer cover surface repair material and preparation method thereof

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