KR20190054670A - Modifier composition and warm asphalt binder for pg upgrade - Google Patents

Modifier composition and warm asphalt binder for pg upgrade Download PDF

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KR20190054670A
KR20190054670A KR1020170151518A KR20170151518A KR20190054670A KR 20190054670 A KR20190054670 A KR 20190054670A KR 1020170151518 A KR1020170151518 A KR 1020170151518A KR 20170151518 A KR20170151518 A KR 20170151518A KR 20190054670 A KR20190054670 A KR 20190054670A
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asphalt
asphalt binder
additive
weight
present
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KR102000646B1 (en
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김병채
이문섭
전성일
권수안
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주식회사 포이닉스
한국건설기술연구원
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/36—Bituminous materials, e.g. tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B18/30—Mixed waste; Waste of undefined composition
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/02—Elements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2611—Polyalkenes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/26—Bituminous materials, e.g. tar, pitch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The present invention relates to an additive for improving a PG grade of low-carbon mid-temperature asphalt and an asphalt binder composition using the same, which are capable of improving a performance grade (PG) of an asphalt binder. The additive of the present invention is composed by mixing 30-50 wt% of wax, 20-30 wt% of high-density polyethylene (PE), 10-20 wt% of paraffin oil, 10-20 wt% of petroleum resin, 5-20 wt% of latex, and 1-10 wt% of sulfur.

Description

저탄소 중온 아스팔트의 PG 등급을 향상시키는 첨가제 및 이를 이용한 아스팔트 바인더 조성물{MODIFIER COMPOSITION AND WARM ASPHALT BINDER FOR PG UPGRADE}TECHNICAL FIELD [0001] The present invention relates to an additive for improving the PG grade of low-carbon mesophilic asphalt, and an asphalt binder composition using the additive.

본 발명은 아스팔트 바인더 조성물에 관한 것으로서, 더욱 상세하게는 아스팔트 바인더에 첨가되는 첨가제를 이용하여 중온 아스팔트의 PG(Performance Grade)등급을 향상시키기 위한 첨가제 및 이를 이용한 아스팔트 바인더 조성물에 관한 것이다.The present invention relates to an asphalt binder composition, and more particularly, to an additive for improving a PG (Performance Grade) grade of mesophilic asphalt using an additive added to an asphalt binder and an asphalt binder composition using the additive.

일반적으로, 아스콘은 아스팔트와 굵은 골재, 잔골재 및 채움재(석회석 분말, 소석회, 시멘트 등)를 가열혼합한 것으로 도로포장이나 주차장 등의 포장재료로 널리 사용되고 있다.Generally, ascon is a mixture of asphalt, coarse aggregate, fine aggregate, and filler (limestone powder, slaked lime, cement, etc.) and is widely used as a packaging material for road pavement and parking lot.

이러한 아스콘은 아스팔트와 골재와의 혼합물로서, 이들을 가열하여 제조하는 것이기 때문에 가열 아스팔트 혼합물(hot mix asphalt)이라고 불리운다.Such an ascon is a mixture of asphalt and aggregate and is called a hot mix asphalt because it is produced by heating them.

아스팔트는 온도변화에 따라 그 상태가 크게 변하므로 이에 의해 제조된 아스팔트 포장 또는 아스콘(아스팔트 콘크리트) 역시 주변 온도의 변화에 따라 심한 거동변화를 갖게 된다. The asphalt pavement or ascon (asphalt concrete) produced by this process also has a severe behavioral change according to the ambient temperature.

이러한 특성으로 인해 도로포장에 사용되는 아스팔트 포장은 여름의 고온환경에는 연성에 의해 소성변형이 발생되고 겨울의 저온환경에는 취성에 의한 균열이 발생된다.Due to these characteristics, asphalt pavement used for road pavement is plastically deformed due to ductility in the high temperature environment in summer and brittle cracking occurs in the low temperature environment in winter.

또한, 아스팔트 포장의 피로균열에 영향을 미치는 요소에는 포장단면구조의 조합, 아스팔트 바인더(Binder)의 물성, 골재의 물성 및 공극률, 포장의 하부구조, 교통 등의 많은 요소가 있다. 이들 요소 중 아스팔트 포장의 피로균열에 대한 저항성을 향상시키기 위한 일반적인 방법은 아스팔트 바인더의 물성을 개선시키는 것이다.In addition, factors affecting fatigue cracks of asphalt pavement include many factors such as combination of pavement structure, physical properties of asphalt binder, physical properties and porosity of aggregate, infrastructure of pavement, traffic and so on. Among these elements, a general method for improving the resistance to fatigue cracking of asphalt pavement is to improve the physical properties of the asphalt binder.

아스팔트 바인더의 물성을 개선시키는 방법 가운데 가장 일반적으로 사용되는 방안은 아스팔트 바인더에 개질제를 첨가하는 것이다. 아스팔트 개질제의 주요 목적 중 하나는 낮은 온도에서 아스팔트의 성상에 해로움을 주지 않으면서 고온에서도 영구변형에 대한 저항성을 증대시키는 것이다. One of the most commonly used methods of improving the physical properties of asphalt binders is to add modifiers to the asphalt binder. One of the main purposes of asphalt modifiers is to increase the resistance to permanent deformation at high temperatures without harming the properties of the asphalt at low temperatures.

이러한 아스팔트 개질제의 종래 일 예로, 특허등록 제835670호에서는 "아스팔트 개질제 및 이에 따른 아스팔트 바인더와 아스팔트혼합물"에 관련된 기술이 개시되어 있다.As a conventional example of such an asphalt modifier, Patent Registration No. 835670 discloses a technique related to " asphalt modifier and thus a mixture of asphalt binder and asphalt. &Quot;

그러나, 상기한 종래 기술에서는 아스팔트 바인더의 점도가 비교적 높고, 충격에 대한 저항력 및 내균열성이 강하나, 중온의 아스팔트에 사용하기에는 물성의 특징이 달라서 적용하기에 한계가 있는 문제점이 있었다.However, in the above-mentioned prior art, there is a problem that the viscosity of the asphalt binder is relatively high, the impact resistance and the crack resistance are strong, but there are limitations in applying the asphalt because the characteristics of physical properties are different.

본 발명은 상기한 종래 기술에서의 문제점을 개선하기 위해 제안된 것으로서, PG등급 향상을 위해 아스팔트 바인더에 첨가되는 첨가제의 조성을 변경시킴으로서 중온 아스팔트 바인더의 성능이 내구성이 보완되어 고온에서도 우수하게 나타내어질 수 있도록 하는데 목적이 있다.The present invention has been proposed in order to overcome the problems of the prior art described above. By modifying the composition of the additive added to the asphalt binder to improve the PG rating, the performance of the intermediate-temperature asphalt binder is improved, The purpose is to make sure.

상기 목적을 이루기 위한 본 발명은, 아스팔트 바인더에 첨가되는 첨가제 조성물에 있어서, 왁스 30~50중량%, 고밀도 폴리에틸렌(PE) 20~30중량%, 파라핀계 오일 10~20중량%, 석유수지 10~20중량%, 라텍스 5~20중량%, 황 1~10중량%의 혼합 조성을 이루는 것을 특징으로 한다.In order to achieve the above object, the present invention provides an additive composition to be added to an asphalt binder, which comprises 30 to 50 wt% of wax, 20 to 30 wt% of high density polyethylene (PE), 10 to 20 wt% of paraffinic oil, 20 to 20% by weight of the latex, 1 to 10% by weight of the sulfur and 5 to 20% by weight of the latex.

또한, 중온아스팔트 바인더 100중량%를 기준으로 상기 첨가제를 5~20중량%의 비율로 혼합이 이루어짐을 특징으로 한다.Also, the additive is mixed at a ratio of 5 to 20% by weight based on 100% by weight of the mesophilic asphalt binder.

이러한 본 발명은, 아스팔트 첨가제의 조성 변화에 따른 기능성이 향상되어, 이러한 첨가제를 아스팔트 바인더에 일정 비율로 혼합하였을 때 중온 아스팔트 바인더의 PG등급을 향상시키는 효과를 나타낸다.The present invention improves the functionality according to the composition change of the asphalt additive and improves the PG grade of the intermediate-temperature asphalt binder when such additive is mixed with the asphalt binder at a certain ratio.

이하, 본 발명의 구체적인 실시 예를 살펴보기로 한다.Hereinafter, a specific embodiment of the present invention will be described.

먼저, 중온 아스팔트 바인더에 첨가되는 본 발명의 첨가제 조성물을 살펴보면, 왁스 30~50중량%, 고밀도 폴리에틸렌(PE) 20~30중량%, 파라핀계 오일 10~20중량%, 석유수지 10~20중량%, 라텍스 5~20중량%, 황 1~10중량%의 혼합 조성을 이루게 된다.First, the additive composition of the present invention to be added to the mesophase asphalt binder includes 30 to 50 wt% of wax, 20 to 30 wt% of high density polyethylene (PE), 10 to 20 wt% of paraffin oil, 10 to 20 wt% of petroleum resin, 5 to 20% by weight of latex and 1 to 10% by weight of sulfur.

즉, 본 발명에서의 첨가제는 상온에서 결정성 고체인 왁스 및 방향족 계열의 석유수지가 혼합됨으로서 아스팔트 바인더와 혼합이 이루어졌을 때 아스팔트의 내구성을 향상시킬 수 있게 된다.That is, the additive of the present invention can improve the durability of the asphalt when mixed with the asphalt binder by mixing the crystalline solid wax and the aromatic petroleum resin at room temperature.

또한, 라텍스는 아스팔트의 점성을 향상시킴과 함께 저소음성이 개선되며, 황은 아스팔트 바인더의 물성을 향상시키는 기능을 수행하게 된다.Further, the latex improves the viscosity of the asphalt and improves the low noise, and the sulfur functions to improve the physical properties of the asphalt binder.

따라서, 본 발명의 첨가제를 중온 아스팔트 바인더 100중량% 기준으로 5~20중량%의 비율로 혼합이 이루어지게 되면, 아스팔트 바인더의 PG 등급을 향상시키는 효과를 나타내게 된다.Therefore, when the additive of the present invention is mixed in a proportion of 5 to 20% by weight based on 100% by weight of the mesophase asphalt binder, the effect of improving the PG grade of the asphalt binder is exhibited.

하기 표는 기존의 중온 아스팔트 바인더(비교예 1)와, 본 발명의 첨가제가 8중량% 비율로 첨가된 중온 아스팔트 바인더(실시예 1) 및 본 발명의 첨가제가 15중량% 비율로 첨가된 중온 아스팔트 바인더(실시예 2)의 PG 등급을 비교한 것이다.The following table shows the results of the comparison between the conventional mesophase asphalt binder (Comparative Example 1), the mesophilic asphalt binder to which the additive of the present invention is added in the ratio of 8 wt% (Example 1) and the mesophilic asphalt And the PG grade of the binder (Example 2).

구분division 비교예 1(종래)Comparative Example 1 (Conventional) 실시예 1(본발명)Example 1 (Present invention) 실시예 2(본발명)Example 2 (Invention) PG등급PG rating 64-2264-22 76-2276-22 82-2282-22

상기 실험 결과를 통해 확인되는 바와 같이 본 발명의 첨가제가 중온 아스팔트 바인더 100중량% 기준으로 5~20중량%의 비율로 혼합이 이루어 졌을 때, 종래 기술에 비해 우수한 PG등급이 나타내어지게 됨을 확인할 수 있다.As can be seen from the above experimental results, when the additives of the present invention are mixed in a proportion of 5 to 20% by weight based on 100% by weight of the mesophase asphalt binder, it is confirmed that the PG grade is superior to that of the prior art .

한편, 본 발명의 다른 실시 예로서 아스팔트 첨가제의 기능성 향상을 위해 굴패각미분말, 플루오로수지, 피리독신산이 추가로 첨가되어지게 된다.As another embodiment of the present invention, an oyster shell fine powder, a fluororesin, and a pyridoxine acid are further added to improve the functionality of the asphalt additive.

즉, 이때에는 왁스 30~50중량%, 고밀도 폴리에틸렌(PE) 20~30중량%, 파라핀계 오일 10~20중량%, 석유수지 10~20중량%, 라텍스 5~20중량%, 황 1~10중량%, 굴패각미분말 5~10중량%, 플루오로수지 1~5중량%, 피리독신산 1~5중량%의 혼합 조성을 이룸이 바람직하다.That is, at this time, 30 to 50 wt% of wax, 20 to 30 wt% of high density polyethylene (PE), 10 to 20 wt% of paraffin oil, 10 to 20 wt% of petroleum resin, 5 to 20 wt% of latex, It is preferable to use a mixed composition of 5 to 10% by weight of oyster shell powder, 1 to 5% by weight of fluororesin, and 1 to 5% by weight of pyridoxine acid.

이러한 본 발명의 첨가제는 굴패각미분말이 첨가됨으로 아스팔트 바인더의 내구성을 향상시키고, 불소가 함유되어 열적. 화학적 성질이 뛰어난 플루오로수지가 첨가됨으로 내열성을 향상시키게 된다.The additive of the present invention improves the durability of the asphalt binder by adding oyster shell fine powder, The addition of a fluororesin having excellent chemical properties improves the heat resistance.

특히, 피리독신산은 플루오로수지의 변형을 방지하여 아스팔트 바인더의 내열성을 극대화하는 이점을 나타낼 수 있다.In particular, the pyridoxine acid can exhibit the advantage of preventing the deformation of the fluororesin and maximizing the heat resistance of the asphalt binder.

그리고, 상기에서 본 발명의 특정한 실시 예가 설명 및 도시되었지만 본 발명의 첨가제 및 아스팔트 바인더 조성물이 당업자에 의해 다양하게 변형되어 실시될 수 있음은 자명한 일이다. Although specific embodiments of the present invention have been illustrated and described above, it is obvious that the additives and asphalt binder compositions of the present invention can be variously modified by those skilled in the art.

그러나, 이와 같은 변형된 실시예들은 본 발명의 기술적 사상이나 범위로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시 예들은 본 발명의 첨부된 특허청구범위 내에 포함된다 해야 할 것이다. It should be understood, however, that such modified embodiments are not to be understood individually from the spirit and scope of the invention, and such modified embodiments are intended to be included within the scope of the appended claims.

Claims (3)

아스팔트 바인더에 첨가되는 첨가제 조성물에 있어서,
왁스 30~50중량%, 고밀도 폴리에틸렌(PE) 20~30중량%, 파라핀계 오일 10~20중량%, 석유수지 10~20중량%, 라텍스 5~20중량%, 황 1~10중량%의 혼합 조성을 이루는 것을 특징으로 하는 저탄소 중온 아스팔트의 피지등급을 향상시키는 첨가제 조성물.In the additive composition added to the asphalt binder,
A mixture of 30 to 50 wt% of wax, 20 to 30 wt% of high density polyethylene (PE), 10 to 20 wt% of paraffinic oil, 10 to 20 wt% of petroleum resin, 5 to 20 wt% of latex and 1 to 10 wt% Wherein the additive composition improves the sebum rating of the low-carbon mid-temperature asphalt. 청구항 1에 있어서,
상기 첨가제에는 기능성 향상을 위한 굴패각미분말 5~10중량%, 플루오로수지 1~5중량%, 피리독신산 1~5중량%가 추가로 첨가되어짐을 특징으로 하는 저탄소 중온 아스팔트의 PG 등급을 향상시키는 첨가제 조성물.The method according to claim 1,
Wherein the additive is further added with 5 to 10% by weight oyster shell fine powder for improving the functionality, 1 to 5% by weight of a fluororesin, and 1 to 5% by weight of pyridoxine acid to improve the PG grade of the low carbon middle temperature asphalt Composition. 중온 아스팔트 바인더 100중량%를 기준으로 청구항 1 또는 청구항 2의 첨가제를 5~20중량%의 비율로 혼합이 이루어짐을 특징으로 하는 저탄소 중온 아스팔트의 PG 등급을 향상시키는 첨가제를 이용한 아스팔트 바인더 조성물.


Wherein the additive of Claim 1 or 2 is mixed in an amount of 5 to 20% by weight based on 100% by weight of a mesophase asphalt binder.


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KR100680677B1 (en) * 2006-10-11 2007-02-08 (주)에이알앤씨 Recycling modified additive material for wast asphalt concrete and method for producing thereof
KR20090129546A (en) * 2008-06-13 2009-12-17 허정도 Composition of warm asphalt modifiers or warm modified asphalts for warm mix asphalt concretes
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KR20160106070A (en) * 2014-01-07 2016-09-09 허니웰 인터내셔날 인코포레이티드 Asphalt binder compositions and methods to make and use same
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100680677B1 (en) * 2006-10-11 2007-02-08 (주)에이알앤씨 Recycling modified additive material for wast asphalt concrete and method for producing thereof
KR20090129546A (en) * 2008-06-13 2009-12-17 허정도 Composition of warm asphalt modifiers or warm modified asphalts for warm mix asphalt concretes
KR20160106070A (en) * 2014-01-07 2016-09-09 허니웰 인터내셔날 인코포레이티드 Asphalt binder compositions and methods to make and use same
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