KR20060081052A - Manufacturing method of modified asphalt - Google Patents

Manufacturing method of modified asphalt Download PDF

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KR20060081052A
KR20060081052A KR1020050001367A KR20050001367A KR20060081052A KR 20060081052 A KR20060081052 A KR 20060081052A KR 1020050001367 A KR1020050001367 A KR 1020050001367A KR 20050001367 A KR20050001367 A KR 20050001367A KR 20060081052 A KR20060081052 A KR 20060081052A
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modified asphalt
weight ratio
asphalt
weight
crosslinking agent
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KR1020050001367A
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KR100620367B1 (en
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민경의
김상수
양재봉
이진호
허은실
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한국석유공업 주식회사
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    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D23/00Scarves; Head-scarves; Neckerchiefs
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D15/00Convertible garments
    • A41D15/04Garments convertible into other articles

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Structures (AREA)

Abstract

본 발명은 분말고무개질제(Crumb Rubber Modifier, CRM), Thermoplastic Elastomer(이하 TPE라 함), 가교제(Cross Linking Agent)의 복합 개질아스팔트에 관한 것으로 기존에 나와있는 Styrene Butadiene Styrene(이하 SBS라 함) 개질아스팔트의 내열성 문제와 Atactic Polypropylene(이하 APP라 함) 개질아스팔트의 내한성 문제를 폐타이어 분말과 가교제를 적용함으로써 모두 해결할 수 있는 고개질 아스팔트로 열공법 방수공사용 아스팔트 컴파운드 또는 이를 적용한 방수시트로 사용되는 개질아스팔트이다. 다시 말하자면, APP 개질 아스팔트의 장점인 UV 및 열노화에 대한 저항성, 고온에서의 흐름저항성이 강하나, 복원력 부족, 저온에서의 크랙이 발생할 우려가 많은 개질 아스팔트이며, SBS 개질 아스팔트의 장점인 저온 특성, 복원력 및 충진성(Sealing capacity)이 우수하나 UV 및 열노화에 대한 저항성, 고온에서의 흐름 저항성이 부족한 개질 아스팔트로, 개발된 복합개질아스팔트는 두 가지 개질 아스팔트의 장점만을 골고루 갖춘 차세대 고개질아스팔트이며 콘크리트 구조물의 상부, 지하바닥, 지하외벽, 지상 비노출바닥에 열공법용 도막 방수자재와 고내구성을 가지는 방수시트 및 도로포장재로 사용이 가능한 개질아스팔트 조성물 및 제조방법에 관한 것이다.The present invention relates to a composite modified asphalt of a powder rubber modifier (Crumb Rubber Modifier, CRM), a thermoplastic elastomer (hereinafter referred to as TPE), and a crosslinking agent (Cross Linking Agent), and is known as Styrene Butadiene Styrene (hereinafter referred to as SBS). Modified as an asphalt compound or a waterproof sheet using it as a high-modified asphalt that can solve both the heat resistance problem of asphalt and the cold resistance problem of Atactic Polypropylene (hereinafter APP) by applying waste tire powder and crosslinking agent Asphalt. In other words, it is a modified asphalt which is resistant to UV and thermal aging, which is an advantage of APP modified asphalt, and flow resistance at high temperature, but lacks resilience and cracks at low temperatures, and low temperature characteristics, which are advantages of SBS modified asphalt, As a modified asphalt that has excellent resilience and sealing capacity but lacks resistance to UV and thermal aging and flow resistance at high temperatures, the developed modified asphalt is the next-generation high-modified asphalt with all the advantages of two modified asphalts. The present invention relates to a modified asphalt composition and a manufacturing method which can be used as a waterproofing sheet having high durability and a waterproof sheet and a road paving material on an upper part, a basement floor, an underground exterior wall, and an unexposed floor of a concrete structure.

개질아스팔트, 방수SheetModified asphalt, waterproof sheet

Description

개질 아스팔트의 제조방법{Manufacturing Method of Modified Asphalt}Manufacturing Method of Modified Asphalt

본 발명은 콘크리트 구조물의 상부, 지하바닥, 지하외벽, 지상 비노출바닥에 열공법용 도막 방수자재와 고내구성을 가지는 방수시트 및 도로 포장재로 사용이 가능한 복합 개질아스팔트 조성물 및 제조방법에 관한 것이다.The present invention relates to a composite modified asphalt composition and a manufacturing method that can be used as a waterproofing sheet having a high thermal durability and waterproof sheet and road pavement on the top, basement floor, basement outer wall, non-exposed ground of the concrete structure.

기존에 사용되어온 방수재에는 아스팔트를 개질시켜 만든 시트방수와 고무 아스팔트계, 아크릴 고무계, 아크릴 수지계와 같은 수분의 증발로 인해 도막이 형성되는 에멀젼형, 우레탄 고무계, 에폭시 고무계와 같은 반응경화형이 있다.Existing waterproofing materials include sheet waterproof and rubber-based asphalt, acrylic rubber, and acrylic resin-based reaction curing type such as emulsion type, urethane rubber type, and epoxy rubber type, in which a coating film is formed by evaporation of moisture.

고무 아스팔트 방수로는 고무, 수지 등을 이용하여 아스팔트를 개질시킨 시트 방수, 합성고무, 가류제, 충진제 등을 배합하여 용제에 용해 한 후 용제가 증발되면서 피막이 형성되는 용제형 도막 방수재, 아스팔트를 유화 반응 후 합성 고분자 에멀젼을 첨가하여 제조 후 수분의 증발에 의해 건조 도막을 형성하는 수용성 에멀전계로 구별된다.Rubber asphalt waterproofing system emulsifies the solvent-type coating waterproofing material and asphalt in which the film is formed by dissolving the solvent after evaporating the solvent by mixing sheet waterproofing, synthetic rubber, vulcanizing agent, filler, etc. It is then distinguished into a water-soluble emulsion that forms a dry coating film by evaporation of water after the addition of a synthetic polymer emulsion.

현재 판매되고 있는 열공법용 개질아스팔트 도막 방수재는 용융 가마에서 고온(200℃이상)으로 장시간 가열시 저온성 및 내열성 등의 물성 변화가 심하며 무기 질 충진제로 들어가는 성분들의 침전이 쉽게 발생하여 기존의 물성을 발휘하기가 힘들어진다. 이로 인하여 교면 방수에서 중요한 전단성능이나 인장접착력 등의 물성이 현저히 떨어질 수 있다. Currently, the modified asphalt coating waterproofing material for the thermal method is severely changed in physical properties such as low temperature and heat resistance when heated for a long time at a high temperature (over 200 ° C) in a molten kiln, and precipitation of components entering the inorganic filler occurs easily. It is difficult to exercise. As a result, properties such as shearing performance and tensile adhesion, which are important in crosslink waterproofing, may be significantly reduced.

그리고 만약 도로포장시 도막방수재 또는 이를 이용한 개질아스팔트 시트방수재로 사용한다면 고온의 아스콘 포설시 아래 개질아스팔트 방수재가 상부 포장층으로 배어 올라오는 경우도 발생할 수 있으며 이로 인하여 포장층 상부 오염이 발생할 수 있어 포장시 작업성도 많이 떨어지며 고온 아스콘 포설시 내열 흐름저항성이 열악하여 동일한 도막 두께를 형성하기 어려운 문제점이 있었다. And if it is used as a coating waterproofing material or modified asphalt sheet waterproofing material when paving the road, the modified asphalt waterproofing material may bleed up to the upper pavement layer at the time of high temperature ascon laying, which may cause contamination of the upper pavement layer. In addition, the workability is also lowered a lot, and the heat flow resistance is poor at the time of high temperature asphalt concrete installation, which makes it difficult to form the same thickness.

또한 방수 시공 후 후속 공정이 우천이나 공사 지연 등으로 인하여 장기간 옥외 노출되어 자외선, 오존, 산성비 및 폭염 등으로 인하여 개질 아스팔트 물성의 변화가 심하여 본 물성을 나타내기 어렵다.In addition, after the waterproof construction, the subsequent process is exposed to the outdoors for a long time due to rainy weather or construction delays, and thus the physical properties of the modified asphalt are severely changed due to ultraviolet rays, ozone, acid rain, and heat waves.

이러한 문제점을 해결하기 위해 대한민국 공개 특허 10-2004-0031723에서는 TPO 아스팔트 조성물이 개발되어 종래의 APP 개질아스팔트 조성물의 단점인 저온성과 SBS 개질아스팔트의 단점인 내열흐름저항성 가지고 있으며, 특히 방수공사용 개질아스팔트 및 시트방수 용도로 고내구성 개질 아스팔트 조성물이 공개되었으나 상기 공정에 의해 제조되는 개질아스팔트 조성물은 내열흐름에 대한 저항성, 저온성 및 내후성이 약한 문제점이 있었다.In order to solve this problem, the Republic of Korea Patent Publication No. 10-2004-0031723 has been developed in the TPO asphalt composition has a low temperature and the heat flow resistance of the disadvantages of the conventional APP modified asphalt composition, the disadvantages of the SBS modified asphalt, in particular modified asphalt and waterproofing work Highly durable modified asphalt composition has been disclosed for sheet waterproofing, but the modified asphalt composition prepared by the above process has a weak resistance to heat flow, low temperature and weather resistance.

본 발명은 상기와 같은 문제점을 해소하기 위하여 안출한 것으로 개질 아스 팔트의 내열흐름 저항성, 저온성 및 내후성을 향상 시킬 수 있도록 함을 목적으로 한다.The present invention has been made in order to solve the above problems, it is an object of the present invention to improve the heat flow resistance, low temperature and weather resistance of modified asphalt.

본 발명의 또 다른 목적은 기존의 APP, SBS 개질 아스팔트가 아닌 복합 개질아스팔트로 한국산업규격 KS F 4931, 한국도로공사 콘크리트 교면 방수재의 설계시공 및 품질관리 지침의 교면용 시트방수재 및 개질 아스팔트 실란트, 건축 및 토목 방수공사에 적용할 수 있는 개질아스팔트를 제공함에 있다. Another object of the present invention is a composite modified asphalt as opposed to conventional APP, SBS modified asphalt, Korea Industrial Standard KS F 4931, Korea Highway Corporation concrete bridge waterproofing material for the design construction and quality control guidelines for the cross-section sheet waterproofing material and modified asphalt sealant, It is to provide modified asphalt which can be applied to construction and civil waterproofing.

본 발명의 또 다른 목적은 스트레이트 아스팔트와 TPE, Polypropylene, 분말고무개질제(CRM), 아스팔트 가교제, 충진제, 안정제를 혼합하여 고내구성을 가진 교면, 지하 주차장 상판, 램프구간, 지하실 및 옥상 그 외 누수의 요인이 내포된 모든 토목, 건축물에서 물의 침투를 막는 방수 기능을 가지는 것은 물론 내열 노화 저항성, 저온성능 등이 우수한 열공법 도막 방수재를 제공함에 있다. Another object of the present invention is to mix the straight asphalt and TPE, Polypropylene, powdered rubber modifier (CRM), asphalt crosslinking agent, filler, stabilizer of the bridge with high durability, underground parking lot roof, lamp section, basement and rooftop and other leakage It is to provide a heat-resistant coating film waterproofing material that has excellent waterproofing function to prevent water ingress in all civil engineering and buildings that contain factors as well as excellent heat resistance, aging resistance and low temperature performance.

상기 목적을 달성하기 위한 본 발명은 스트레이트 아스팔트 60 ~ 70% (중량비)에 TPE 5 ~ 15% (중량비)와 폴리프로필렌 3 ~ 10% (중량비)를 혼합하는 공정과:The present invention for achieving the above object is a process of mixing 5 ~ 15% (weight ratio) of TPE and 3 ~ 10% (weight ratio) of polypropylene with straight asphalt 60 ~ 70% (weight ratio):

상기 공정에 의해 혼합된 혼합물을 약 170 ~ 190℃를 유지하면서 약 1시간 30분 정도 교반하여 균일하게 분산되도록 교반하는 공정과:Stirring the mixture mixed by the above process to uniformly disperse about 1 hour 30 minutes while maintaining about 170 ~ 190 ℃:

상기 공정에 의해 혼합된 혼합물에 충진제 5 ~ 30% (중량비), 안정제 0.1 ~ 0.4% (중량비)를 약 170 ~ 190℃에서 정량 투입한 후 교반하는 공정과:5 to 30% of a filler (weight ratio) and a stabilizer of 0.1 to 0.4% (weight ratio) of the mixture mixed by the above step is quantitatively added at about 170 ~ 190 ℃ and stirring:

상기 공정 후 가교제 0.1 ~ 0.5% (중량비)를 조금씩 균일하게 투입하여 1시간 이상 충분히 교반하고 40mesh 이상의 분말고무개질제(CRM) 2 ~ 10% (중량비)를 정량 투입 후 교반하여 가교제 및 분말고무개질제(CRM)을 균일하게 분산하는 과정 으로 이루어짐을 특징으로 한다.
After the above process, 0.1 to 0.5% (by weight ratio) of the crosslinking agent was added little by little, and stirred sufficiently for 1 hour or more, and 40 to about 10% (by weight ratio) of the powder rubber modifier (CRM) was added and stirred, followed by stirring. CRM) is uniformly distributed.

이하 본 발명의 열공법용 복합 개질 아스팔트 도막 방수재의 실시예를 통하여 더욱 상세히 설명하면 하기와 같다.Hereinafter will be described in more detail through the embodiment of the composite modified asphalt coating waterproofing material for the thermal method of the present invention.

스트레이트 아스팔트 60 ~ 70% (중량비)에 TPE 5 ~ 15% (중량비)와 폴리프로필렌 3 ~ 10% (중량비)를 혼합하는 공정과:Process for mixing TPE 5-15% (weight ratio) and polypropylene 3-10% (weight ratio) to 60-70% (weight ratio) of straight asphalt:

상기 공정에 의해 혼합된 혼합물을 약 170 ~ 190℃를 유지하면서 약 1시간 30분 정도 교반하여 균일하게 분산되도록 교반하는 공정과:Stirring the mixture mixed by the above process to uniformly disperse about 1 hour 30 minutes while maintaining about 170 ~ 190 ℃:

상기 공정에 의해 혼합된 혼합물에 충진제 5 ~ 30% (중량비), 안정제 0.1 ~ 0.4% (중량비)를 약 170 ~ 190℃에서 정량 투입한 후 교반하는 공정과:5 to 30% of a filler (weight ratio) and a stabilizer of 0.1 to 0.4% (weight ratio) of the mixture mixed by the above step is quantitatively added at about 170 ~ 190 ℃ and stirring:

상기 공정 후 가교제 0.1 ~ 0.5% (중량비)를 조금씩 균일하게 투입하여 1시간 이상 충분히 교반하고 40mesh 이상의 분말고무개질제(CRM) 2 ~ 10% (중량비)를 정량 투입 후 교반하여 가교제 및 분말고무개질제(CRM)을 균일하게 분산하는 과정으로 이루어 진다. After the above process, 0.1 to 0.5% (by weight ratio) of the crosslinking agent was added little by little, and stirred sufficiently for 1 hour or more, and 40 to about 10% (by weight ratio) of the powder rubber modifier (CRM) was added and stirred to crosslinking agent and powder rubber modifier ( CRM) is uniformly distributed.

상기 혼합과정에서 사용되는 TPE는 부타디엔(Butadiene)과 Stylene 또는 Isoprene과 공중합된 Linear 또는 Radial 구조를 가진 블록 공중합체가 사용되며, 이를 보다 상세히 설명하면 하기와 같다.As the TPE used in the mixing process, a block copolymer having a linear or radial structure copolymerized with butadiene and Stylene or Isoprene is used, which will be described in detail below.

우선 190 ~ 220℃의 스트레이트 아스팔트 60 ~ 70% (중량비)에 TPE 5 ~ 15%(중량비)와 Polypropylene 3 ~ 10% (중량비)를 투입하고 약 170 ~ 190℃를 유지하는 상태에서 교반기에서 약 1시간 30분 교반시켜 충분히 혼합되도록 한다.First, TPE 5-15% (weight ratio) and Polypropylene 3-10% (weight ratio) are added to 60-70% (weight ratio) of straight asphalt at 190-220 ° C, and about 1 in a stirrer while maintaining approximately 170-190 ° C. Stir for 30 minutes to allow sufficient mixing.

상기 과정에 의해 충분히 혼합된 혼합물에 충진제 5 ~ 30%, 안정제 0.1 ~ 0.4% (중량비)를 정량 투입한 후 약 170 ~ 190℃를 유지한 상태에서 다시 충분하게 교반시켜 혼합한다.5 to 30% of a filler and 0.1 to 0.4% of a stabilizer (weight ratio) were quantitatively added to the mixture sufficiently mixed by the above process, followed by mixing with sufficient stirring again while maintaining about 170 to 190 ° C.

이후 상기 혼합물에 가교제 0.1 ~ 0.5%(중량비)를 조금씩 균일하게 투입하여 1시간 이상 충분히 교반하여 골고루 혼합되도록 한 후 40mesh 이상의 분말 고무개질제 2 ~ 10%(중량비)를 투입하여 작업하기 편한 점도를 얻을 수 있도록 한다.Thereafter, 0.1 to 0.5% (by weight ratio) of the crosslinking agent was added to the mixture little by little, and then stirred sufficiently for 1 hour or more to be mixed evenly, and then 2 to 10% (by weight ratio) of powder rubber modifier of 40 mesh or more was added to obtain a viscosity that is easy to work. To be able.

여기서 스트레이트 아스팔트에 TPE, Polypropylene, 분말고무개질제(CRM) 및 가교제를 균일하게 분산시켜야 하며 그렇지 못할 경우 내열 흐름성, 저온성 등이 현저히 떨어질 가능성이 매우 크며 개질 아스팔트 물성을 좌우할 수 있다. 그리고 생산시 냉각 또는 가열하여 작업성이 좋도록 원하는 점도를 얻는다.Here, TPE, polypropylene, powdered rubber modifier (CRM) and crosslinking agent should be uniformly dispersed in straight asphalt. Otherwise, heat flow resistance and low temperature may be significantly lowered, and the modified asphalt properties may be influenced. And it cools or heats at the time of production, and obtains the desired viscosity for good workability.

이와 같이 제조한 도막 방수재는 바탕의 먼지, 유분 등 이물질을 제거하고 붓, 롤러를 사용하여 프라이머 작업 후 톱니흙손, 고무헤라, 주입장치 등을 사용하여 도포하고 시공 두께에 따라 2차 도포를 할 수 있으며 폴리에스터, 폴리에틸렌, 폴리프로필렌, 하이버 글라스 섬유나 직포, 부직포, 필름 등의 보강재를 함께 사용하면 성능이 더욱 우수하다. 그리고 본 열공법용 개질 아스팔트를 이용한 개질 아스팔트 방수시트에도 적용할 수 있다.Thus, the coating film waterproofing material can remove foreign substances such as dust and oil from the base, apply primer using a brush and roller, and then apply it using a toothed trowel, rubber spatula, injection device, etc. The performance is better when polyester, polyethylene, polypropylene, hiber glass fiber, woven fabric, nonwoven fabric, and film are used together. And it can be applied to the modified asphalt waterproof sheet using the modified asphalt for the thermal method.

* 실시예Example

1) 복합 개질 아스팔트의 제조1) Preparation of Composite Modified Asphalt

침입도가 80 ~ 200인 용융 스트레이트 아스팔트를 190 ~ 220℃로 유지하면서 TPE 및 Polypropylene을 첨가하여 혼합 후 170 ~ 200℃에서 약 1시간 30분 정도 교반하여 균일한 분산이 되도록 제조한다. 교반시간은 교반기의 형태에 따라 달라질 수 있다. 그리고 충진제 및 안정제 5 ~ 30%, 0.1 ~ 0.4% (중량비)를 약 170 ~ 190℃에서 정량 투입한 후 또다시 충분하게 교반시키고 가교제를 조금씩 투입하여 약 1시간 동안 교반한 후 분말고무개질제(CRM)를 정량 투입하여 분산시켜 약 170 ~ 190℃에서 작업하기 편한 점도를 얻은 후 제조한다.While maintaining the molten straight asphalt having a penetration of 80 ~ 200 at 190 ~ 220 ℃ by adding TPE and Polypropylene, after mixing for about 1 hour 30 minutes to prepare a uniform dispersion. The stirring time may vary depending on the type of stirrer. Filler and stabilizer 5 ~ 30%, 0.1 ~ 0.4% (weight ratio) was quantitatively added at about 170 ~ 190 ℃ and again stirred sufficiently and the crosslinking agent was added a little by stirring for about 1 hour and then powdered rubber modifier (CRM ) Is prepared by dispensing by dispersing to obtain a viscosity that is easy to work at about 170 ~ 190 ℃.

표1. 조 성 비 Table 1. Composition

구 분division 배 합 비 (wt%)Compound ratio (wt%) 스트레이트 아스팔트Straight asphalt 60 ~ 7060 to 70 TPETPE 5 ~ 155 to 15 PolypropylenePolypropylene 3 ~ 103 to 10 충진제Filler 5 ~ 305 to 30 안정제stabilizator 0.1 ~ 0.40.1 to 0.4 분말고무개질제(CRM)Powder Rubber Modifier (CRM) 2 ~ 102 to 10 가교제Crosslinking agent 0.1 ~ 0.50.1 to 0.5 합 계Sum 100100

본 발명에 분말고무개질제(CRM)로 적용한 폐타이어는 그동안 소각되거나 매립되어 환경오염 및 비용 문제가 야기된 바 재활용 차원에서 친환경적인 자재로서 열공법용 도막 방수재 및 개질아스팔트 시트방수재의 성능을 평가하기 위하여 내열치수안정성은 한국산업규격 KS F4931 및 한국도로공사 콘크리트 교면 방수재의 설계 시공 및 품질관리 지침에 의거하여 시편두께 4mm 제작한 후 가열 항온기 150±3 ℃, 30분 동안 수평 내열치수안정성을 실험 후 표준양생조건에서 4시간 방치한 후 실험을 행하였으며 저온굴곡성은 각 시험방법에 준하여 실험하였다. 그리고 내열노 화시험은 당사기준의 시험방법을 채택하여 동일 시편을 가열 항온기 70±2 ℃, 26주 시험 후 표준양생조건에서 4시간 이상 방치한 후에 저온굴곡성을 비교하였다.Waste tires applied to the present invention as powder rubber modifiers (CRM) are incinerated or buried in the meantime, so that environmental pollution and cost problems have occurred. Heat resistance dimensional stability is 150 ± 3 after making specimen thickness 4mm according to the design construction and quality control guidelines of Korea Industrial Standard KS F4931 and Korea Highway Corporation concrete bridge waterproofing material. After experimenting with horizontal heat resistance stability for 30 minutes at standard curing condition for 4 hours, the experiment was performed, and the low temperature flexural properties were tested according to each test method. And heat-resistant aging test adopts the test method of our standard and heats the same specimen 70 ± 2 After the 26-week test at ℃, left for 4 hours or more under standard curing conditions, the low temperature flexibility was compared.

본 발명품과 시중의 타 개질아스팔트 제품을 비교하기 위하여 APP, SBS 개질 아스팔트 시편을 동일하게 제작한 다음 물성을 측정하였으며 그 결과의 비교는 아래의 표와 같다.In order to compare the present invention and other modified asphalt products on the market, the APP and SBS modified asphalt samples were manufactured in the same manner, and then the physical properties thereof were measured. The comparison of the results is shown in the following table.

표2. 실험 결과표Table 2. Experiment result table

구분division 본 발명(복합 개질아스팔트)The present invention (composite modified asphalt) APP 개질아스팔트APP modified asphalt SBS 개질아스팔트SBS modified asphalt 1One 22 33 평균Average 연화점 (R&B, ℃)Softening Point (R & B, ℃) 148 148 147 147 146 146 147 147 152 152 123 123 침입도 (25℃,100g, 5초,dmm)Penetration (25 ℃, 100g, 5 seconds, dmm) 32 32 34 34 34 34 33 33 36 36 37 37 내열치수안정성 (150±3℃, 30분, %)Heat resistance stability (150 ± 3 ℃, 30 minutes,%) -0.5 -0.5 -1.0 -1.0 -0.5 -0.5 -0.7 -0.7 -0.5 -0.5 측정불가 (흘러내림)Not measurable (flowing down) 저온굴곡성Low Temperature Flexibility -20℃ no crack -20 ℃ no crack -0.5℃ no crack -0.5 ℃ no crack -20℃ no crack -20 ℃ no crack 저온굴곡성 (70℃±2, 26주 후)Low Temperature Flexibility (70 ℃ ± 2, after 26 weeks) -10℃ no crack -10 ℃ no crack 0℃ no crack 0 ℃ no crack -5℃ no crack -5 ℃ no crack

※ 연화점와 침입도는 각각 KS M 2250, KS M 2252에 의거하여 실험을 행하였다.   ※ Softening point and penetration were tested according to KS M 2250 and KS M 2252, respectively.

이상과 같은 결과에서 알 수 있는 것을 요약하여 보면 첫 번째, 본 발명의 열공법용 개질 아스팔트 도막 방수재 또는 이를 적용한 개질아스팔트 방수시트는 다른 시중 제품과 비교하여 볼 때 방수재에서 가장 중요한 방수 성능이 상대적으로 오래 지속할 수 있는 내구성을 나타낼 수 있다는 것을 알 수가 있다. Summarizing what can be seen from the above results, first, the modified asphalt coating waterproofing material of the present invention or modified asphalt waterproofing sheet to which the same is applied, the most important waterproof performance in the waterproofing material is relatively long compared to other commercial products. It can be seen that the durability can be shown.

표 2. 의 내열치수안정성 및 가열 후 저온특성변화율을 보면 APP & SBS 개질 아스팔트의 장점만을 고루 갖추고 있다는 것을 나타내고 있다. 두 번째, 내열치수안정성의 결과를 보면 SBS 개질 아스팔트 제품보다는 월등히 고온에서 견딜 수 있으며 SBS 개질 아스팔트는 약 100℃ 이하정도에서 흐름정도가 나타났으며 고온의 아스콘 포장시 도막 두께, 포장층으로 배어 올라옴 등의 문제점이 많을 것으로 보이나 상대적으로 복합 개질아스팔트는 이런 문제점으로 해결할 수 있을 것으로 보인다. 세 번째, 저온굴곡성과 가열 후 저온굴곡성 실험의 결과를 요약하면 본 발명의 방수재와 APP 개질아스팔트는 1/2배 감소한 것에 반해 SBS 개질 아스팔트는 1/4배 정도로 감소하여 큰 차이를 나타내었다. 이로 인하여 사계절이 뚜렷한 우리나라에서 기후 변화에 대한 방수 효과를 기대할 수 있도록 기존의 제품보다 저온 성능 및 내구성이 개선되었음을 보여주고 있다.The thermal dimension stability and the rate of change of low temperature after heating in Table 2 show that it has only the advantages of APP & SBS modified asphalt. Second, the results of the heat resistance stability show that it can withstand much higher temperatures than SBS modified asphalt products, and the SBS modified asphalt showed a flow level at about 100 ℃ or less, and it was soaked into the film thickness and pavement layer when paving high temperature asphalt concrete. It seems that there are many problems such as the above, but relatively modified asphalt can be solved by this problem. Third, summarized the results of the low temperature flexibility and the low temperature flexibility test after heating, the waterproofing material and APP modified asphalt of the present invention was reduced by 1/2 times, while the SBS modified asphalt was reduced by about 1/4 times, showing a big difference. As a result, it shows that the low-temperature performance and durability are improved compared to the existing products to expect a waterproof effect against climate change in Korea with four distinct seasons.

Claims (7)

스트레이트 아스팔트 60 ~ 70% (중량비)에 TPE 5 ~ 15% (중량비)와 폴리프로필렌 3 ~ 10% (중량비)를 혼합하는 공정과:Process for mixing TPE 5-15% (weight ratio) and polypropylene 3-10% (weight ratio) to 60-70% (weight ratio) of straight asphalt: 상기 공정에 의해 혼합된 혼합물을 약 170 ~ 190℃를 유지하면서 약 1시간 30분 정도 교반하여 균일하게 분산되도록 교반하는 공정과:Stirring the mixture mixed by the above process to uniformly disperse about 1 hour 30 minutes while maintaining about 170 ~ 190 ℃: 상기 공정에 의해 혼합된 혼합물에 충진제 5 ~ 30% (중량비), 안정제 0.1 ~ 0.4% (중량비)를 약 170 ~ 190℃에서 정량 투입한 후 교반하는 공정과:5 to 30% of a filler (weight ratio) and a stabilizer of 0.1 to 0.4% (weight ratio) of the mixture mixed by the above step is quantitatively added at about 170 ~ 190 ℃ and stirring: 상기 공정 후 가교제 0.1 ~ 0.5% (중량비)를 조금씩 균일하게 투입하여 1시간 이상 충분히 교반하고 40mesh 이상의 분말고무개질제(CRM) 2 ~ 10% (중량비)를 정량 투입 후 교반하여 가교제 및 분말고무개질제(CRM)을 균일하게 분산하는 과정으로 이루어짐을 특징으로 하는 아스팔트 조성물의 제조방법.After the above process, 0.1 to 0.5% (by weight ratio) of the crosslinking agent was added little by little, and stirred sufficiently for 1 hour or more, and 40 to about 10% (by weight ratio) of the powder rubber modifier (CRM) was added and stirred to crosslinking agent and powder rubber modifier ( Method for producing an asphalt composition, characterized in that consisting of a process of uniformly dispersing CRM). 청구항 1에 있어서, The method according to claim 1, 상기 혼합과정에서 사용되는 TPE는 부타디엔(Butadiene)과 Stylene 또는 Isoprene과 공중합된 선형 또는 비선형의 구조를 가진 블록 공중합체임을 특징으로 하는 개질아스팔트 조성물의 제조방법.The TPE used in the mixing process is a block copolymer having a linear or nonlinear structure copolymerized with butadiene (Butadiene) and Stylene or Isoprene. 청구항 1에 있어서, The method according to claim 1, 스트레이트 아스팔트는 침입도가 80 ~ 200인 임을 특징으로 하는 개질아스팔트 조성물의 제조방법.Straight asphalt is a method for producing a modified asphalt composition, characterized in that the penetration of 80 to 200. 청구항 1에 있어서, The method according to claim 1, 상기 폴리프로필렌은 연화점이 150℃ 이상, 중량 평균분자량이 50,000이하임을 특징으로 하는 개질아스팔트 조성물의 제조방법.The polypropylene has a softening point of 150 ° C. or more and a weight average molecular weight of 50,000 or less. 청구항 1에 있어서, The method according to claim 1, 상기 가교제는 황, hydrogen peroxid, methacrylate와 glycidyl, ethylene 또는 terpolymer과 glycidyl이 포함된 monomer, butyl acrylate 과 glycidal methacrylate군에서 선택되는 어느 하나인 것임을 특징으로 하는 개질아스팔트 조성물의 제조방법The crosslinking agent is sulfur, hydrogen peroxid, methacrylate and glycidyl, ethylene or terpolymer and glycidyl containing monomer, butyl acrylate and glycidal methacrylate manufacturing method of the modified asphalt composition, characterized in that any one selected from the group 청구항 1에 있어서, The method according to claim 1, 분말고무개질제(CRM)는 40mesh 이상의 폐타이어분말을 사용함을 특징으로 하는 개질아스팔트 조성물의 제조방법Powder rubber modifier (CRM) is a method for producing a modified asphalt composition, characterized in that the use of waste tire powder of 40 mesh or more 용융 스트레이트 아스팔트 60 ~ 70% (중량비)에 TPE 5 ~ 15%(중량비)와 Polypropylene 3 ~ 10% (중량비)를 배합하고 상기 배합물에 충진제 및 안정제 5 ~ 30% (중량비), 0.1 ~ 0.4% (중량비), 가교제 0.1 ~ 0.5% (중량비), 40mesh 이상의 분말고무개질제(CRM) 2 ~ 10% (중량비)를 배합한 것을 특징으로 한 아스팔트 조성물.60 to 70% (by weight) of melted straight asphalt, TPE 5 to 15% (by weight) and Polypropylene 3 to 10% (by weight), and the formulation is filled with fillers and stabilizers 5 to 30% (by weight), 0.1 to 0.4% ( Weight ratio), a crosslinking agent 0.1 to 0.5% (weight ratio), 40 mesh or more powder rubber modifier (CRM) 2 to 10% (weight ratio).
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CN109735123B (en) * 2018-12-28 2022-08-09 北京东方雨虹防水技术股份有限公司 Rubber asphalt and preparation method thereof
CN113914114A (en) * 2021-10-12 2022-01-11 瑞斯(唐山)建材有限公司 Modified asphalt waterproof coiled material and preparation method thereof
CN113914114B (en) * 2021-10-12 2023-10-27 瑞斯(唐山)建材有限公司 Modified asphalt waterproof coiled material and preparation method thereof
CN116176063A (en) * 2022-12-30 2023-05-30 杨际梅 Heat-insulating modified asphalt non-curing waterproof coiled material, preparation method thereof and production line

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