KR102015836B1 - Compound of asphalt capable of absorbing stress and stress buffer sheet containing thereof - Google Patents

Compound of asphalt capable of absorbing stress and stress buffer sheet containing thereof Download PDF

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KR102015836B1
KR102015836B1 KR1020160100824A KR20160100824A KR102015836B1 KR 102015836 B1 KR102015836 B1 KR 102015836B1 KR 1020160100824 A KR1020160100824 A KR 1020160100824A KR 20160100824 A KR20160100824 A KR 20160100824A KR 102015836 B1 KR102015836 B1 KR 102015836B1
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stress
asphalt
layer
stress absorbing
weight
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KR20180016873A (en
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양재봉
이진호
이광호
김진철
박지용
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한국석유공업 주식회사
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/042—Magnesium silicates, e.g. talc, sepiolite
    • 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
    • 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
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/10—Clay
    • 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
    • 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
    • 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
    • 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
    • C04B14/30—Oxides other than silica
    • C04B14/305—Titanium oxide, e.g. titanates
    • 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
    • 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
    • C04B20/10—Coating or impregnating
    • C04B20/1018—Coating or impregnating with organic materials
    • C04B20/1029—Macromolecular compounds
    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • E—FIXED CONSTRUCTIONS
    • 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
    • E01C11/00—Details of pavings
    • E01C11/005—Methods or materials for repairing pavings
    • E—FIXED CONSTRUCTIONS
    • 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
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
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Abstract

본 발명의 응력흡수용 아스팔트 조성물은 브로운 아스팔트 55~65 중량%; Polynorborene(ethylene propylene rubber)인 고분자 개질제 5~15 중량%; 접착성능 부여제 1~10 중량%; Tetramethylthiuram disulfide(TMTD)인 가교 촉진제 0.1~1 중량%; 무기질필러 20~30 중량%;를 포함한다.
이 경우, 본발명의 아스팔트 조성물은 전단변형에 관계없이 선형적 점탄성을 갖는 브로운 아스팔트를 사용함과 아울러, 저온상태에서도 유연성 유지가 가능한 노보넨(norbornene) 단량체로 형성된 단중합체 폴리노보낸Polynorborene(ethylene propylene rubber) 고무를 사용하기 때문에 탄성력이 우수하고, 인장성능이 우수하다.Asphalt composition for stress absorption of the present invention is 55 to 65% by weight of blown asphalt; 5 to 15% by weight of a polymer modifier of polynorborene (ethylene propylene rubber); 1 to 10% by weight of an adhesion imparting agent; 0.1 to 1% by weight of a crosslinking promoter, Tetramethylthiuram disulfide (TMTD); Including inorganic filler 20 ~ 30% by weight.
In this case, the asphalt composition of the present invention uses blown asphalt having linear viscoelasticity regardless of shear deformation, and is made of a homopolymer polynorbornene (norbornene) monomer capable of maintaining flexibility even at low temperature. propylene rubber) Since rubber is used, it has excellent elasticity and excellent tensile performance.

Description

응력흡수용 아스팔트 조성물 및 이를 이용한 응력흡수용 시트{COMPOUND OF ASPHALT CAPABLE OF ABSORBING STRESS AND STRESS BUFFER SHEET CONTAINING THEREOF}Asphalt composition for stress absorption and sheet for stress absorption using the same {COMPOUND OF ASPHALT CAPABLE OF ABSORBING STRESS AND STRESS BUFFER SHEET CONTAINING THEREOF}

본 발명은 건설재료 분야에 관한 것으로서, 상세하게는 응력흡수용 아스팔트 조성물 및 이를 이용한 응력흡수용 시트에 관한 것이다.The present invention relates to the field of construction materials, and in particular, to a stress-absorbing asphalt composition and a stress-absorbing sheet using the same.

아스팔트 포장에 비하여 수명이 길고, 유지관리 비용이 적으며, 아스팔트 포장의 최대 단점인 소성변형이 발생하지 않기 때문에 중부고속도로(1987년 개통)의 개통을 기준으로 콘크리트 포장은 점차 확대되어 왔다.The concrete pavement has been gradually expanded based on the opening of the central expressway (opening in 1987) because it has a longer life, less maintenance cost, and no plastic deformation, which is the biggest disadvantage of the asphalt pavement.

그러나 콘크리트 포장은 초기 양생과정에서부터 건조수축 균열이 발생하고, 초기에 발생한 균열 및 사용중 발생하는 균열이 사용하중(차량 하중 등)에 노출되면서 균열깊이 및 균열폭이 확대되는 문제가 있다.However, the concrete pavement has a problem that the dry shrinkage cracks from the initial curing process, the crack depth and crack width is expanded as the initial cracks and cracks generated during use are exposed to the use load (vehicle load, etc.).

이러한 균열은 콘크리트 박리 박락의 원인이 되고, 교통사고를 유발할 수 있기 때문에 신속한 보수와 보강을 해야 한다.These cracks can cause the concrete to peel off and cause traffic accidents, so prompt repair and reinforcement are required.

이를 해결하기 위해 콘크리트 포장의 상부에 아스팔트 포장층을 추가로 형성하여 콘크리트 포장의 균열 및 손상을 보수함과 아울러 방지하는 공법이 사용되고 있다.In order to solve this problem, a method of preventing and repairing cracks and damages of concrete pavement by forming an asphalt pavement layer on top of concrete pavement is used.

그러나 콘크리트 포장층에서 발생한 균열이 콘크리트 포장층 상부에 형성된 아스팔트 포장층까지 연장 형성되는 반사균열의 문제가 지속적으로 발생하고 있다.However, there is a problem of reflection cracks in which cracks generated in concrete pavements extend to asphalt pavements formed on concrete pavements.

본 발명은 상기와 같은 문제점을 해결하기 위하여 도출된 것으로서, 콘크리트 포장층에서 발생한 균열이 아스팔트 포장층까지 연결되는 반사균열을 차단할 수 있는 응력흡수용 아스팔트 조성물 및 이를 이용한 응력흡수용 시트를 제시한다.The present invention was derived to solve the above problems, and proposes a stress absorbing asphalt composition and a stress absorbing sheet using the same, which can block the reflection cracks connected to the asphalt pavement layer generated in the concrete pavement layer.

상기 과제의 해결을 위하여, 본 발명의 응력흡수용 아스팔트 조성물은 브로운 아스팔트 55~65 중량%; Polynorborene(ethylene propylene rubber)인 고분자 개질제 5~15 중량%; 접착성능 부여제 1~10 중량%; Tetramethylthiuram disulfide(TMTD)인 가교 촉진제 0.1~1 중량%; 무기질필러 20~30 중량%;를 포함한다.In order to solve the above problems, the stress-absorbing asphalt composition of the present invention is 55 to 65% by weight of blown asphalt; 5 to 15% by weight of a polymer modifier of polynorborene (ethylene propylene rubber); 1 to 10% by weight of an adhesion imparting agent; 0.1 to 1% by weight of a crosslinking promoter, Tetramethylthiuram disulfide (TMTD); Including inorganic filler 20 ~ 30% by weight.

상기 브로운 아스팔트는 스트레이트 아스팔트, 천연 아스팔트 중 적어도 어느 하나를 더 포함하는 것이 바람직하다.The blown asphalt further preferably comprises at least one of straight asphalt and natural asphalt.

상기 고분자 개질제는 분자량이 10,000 이상인 것이 바람직하다.The polymer modifier preferably has a molecular weight of 10,000 or more.

상기 고분자 개질제는 SBS, EPDM(Ethylene Propylene Diene Monomer) rubber, Neoprene, Nitrile rubber, Silicone rubber, Polychloroprene, Polyvinyl acetate, Polyethlene terephthalate, Polycabonate, t-polyoctenamer 중 적어도 어느 하나를 더 포함하는 것이 바람직하다.The polymer modifier may further include at least one of SBS, EPDM (Ethylene Propylene Diene Monomer) rubber, Neoprene, Nitrile rubber, Silicone rubber, Polychloroprene, Polyvinyl acetate, Polyethlene terephthalate, Polycabonate, and t-polyoctenamer.

상기 접착성능 부여제는 석유수지, Terpene 수지, Penol 수지, xylene 수지 중 적어도 어느 하나 이상이 혼합된 것이 바람직하다.The adhesive performance imparting agent is preferably a mixture of at least one or more of petroleum resin, Terpene resin, Penol resin, xylene resin.

상기 가교촉진제는 Cross-link agenet, acid, carboxylic anhydride, carboxylic acidester, 유황(sulfur), 술폰산(sulphonic acid), 황산(sulphuric acid), 인산(phosphoric acid), acid chloride, phenol, 2-2'-Dithiobisbenzothiazole, N-t-Butylbenzothiazole-2-sulfennamode(NBTS) 중 적어도 어느 하나가 더 포함된 것이 바람직하다.The crosslinking accelerator is cross-link agenet, acid, carboxylic anhydride, carboxylic acidester, sulfur, sulfonic acid, sulfuric acid, phosphoric acid, acid chloride, phenol, 2-2'- It is preferable that at least one of dithiobisbenzothiazole and Nt-Butylbenzothiazole-2-sulfennamode (NBTS) is further included.

상기 무기질 필러는 탄산칼슘, 황산바륨, Talc, Clay, 산화티타늄, APP 중 적어도 어느 하나인 것이 바람직하다.The inorganic filler is preferably at least one of calcium carbonate, barium sulfate, Talc, Clay, titanium oxide, APP.

본 발명의 일 실시 예에 따른 응력흡수용 아스팔트 조성물로 제작된 응력흡수용 시트(100)는 PE 부직포로 형성된 제1부직포층(110); 상기 제1부직포층(110)의 상부에 상기 응력 흡수용 아스팔트 조성물로 형성된 제1응력흡수층(120); 상기 제1응력흡수층(120)의 상부에 또 따른 상기 PE부직포로 형성된 제2부직포층(130); 상기 제2부직포층(130)의 상부에 상기 응력흡수용 아스팔트 조성물로 형성된 제2응력흡수층(140);을 포함한다. Stress absorbing sheet 100 made of a stress-absorbing asphalt composition according to an embodiment of the present invention comprises a first non-woven fabric layer 110 formed of a PE non-woven fabric; A first stress absorbing layer (120) formed of the stress absorbing asphalt composition on the first nonwoven fabric layer (110); A second nonwoven layer 130 formed of the PE nonwoven fabric on top of the first stress absorbing layer 120; And a second stress absorbing layer 140 formed of the stress absorbing asphalt composition on the second nonwoven fabric layer 130.

본 발명의 일 실시 예에 따른 응력흡수용 시트(100)를 이용한 콘크리트 도로(1) 균열부(10) 보수공법은 상기 균열부(10)의 표면을 청소하는 균열부 청소단계; 상기 균열부(10)의 상면에 상기 응력 흡수용 아스팔트 조성물을 포설하여 응력흡수층(150)을 형성하는 응력흡수층형성단계; 상기 응력흡수층(150)의 상부에 상기 응력흡수용 시트(100)를 설치하는 시트설치단계; 상기 응력흡수용 시트(100)의 상부에 아스팔트 콘크리트를 타설하여 포장층(160)을 형성하는 포장층형성단계;를 포함한다. Concrete road using the stress absorbing sheet 100 according to an embodiment of the present invention (1) cracks 10 repair method is a crack cleaning step for cleaning the surface of the cracks 10; A stress absorbing layer forming step of forming the stress absorbing layer 150 by installing the stress absorbing asphalt composition on an upper surface of the crack part 10; A seat installation step of installing the stress absorbing sheet 100 on the stress absorbing layer 150; And a pavement layer forming step of forming the pavement layer 160 by pouring asphalt concrete on top of the stress absorbing sheet 100.

본 발명의 응력흡수용 아스팔트 조성물 및 이를 이용한 응력흡수용 시트는 콘크리트 포장층과 아스팔트 포장층의 사이구간에 형성되어 콘크리트에서 발생하는 균열이 아스팔트 포장층까지 연결되는 것(반사균열)을 효과적으로 차단할 수 있다.The stress-absorbing asphalt composition of the present invention and the stress-absorbing sheet using the same are effectively formed between the concrete pavement layer and the asphalt pavement layer, so that cracks generated in concrete can effectively prevent the reflection cracks (reflection cracks). have.

도 1은 본 발명의 일 실시 예에 따른 응력흡수용 시트 단면도.
도 2는 균열이 발생한 콘크리트 도로 단면도.
도 3은 본 발명의 일 실시 예에 따른 응력흡수층형성단계 공정도.
도 4는 본 발명의 일 실시 예에 따른 시트설치단계 공정도.
도 5는 본 발명의 일 실시 예에 따른 포장층형성단계 공정도.
도 6는 반사균열 시험 장치.
도 7은 반사균열저항성능을 위한 실시예의 실험체 단면도.
도 8은 반사균열저항성능을 위한 비교예의 실험체 단면도.1 is a cross-sectional view of the stress absorbing sheet according to an embodiment of the present invention.
2 is a cross-sectional view of a concrete road in which cracks have occurred.
3 is a process diagram for forming a stress absorbing layer according to an embodiment of the present invention.
Figure 4 is a process sheet installation step according to an embodiment of the present invention.
Figure 5 is a packaging layer forming step process diagram according to an embodiment of the present invention.
6 is a reflection crack test apparatus.
7 is a cross-sectional view of the test specimen of the embodiment for the reflection cracking resistance performance.
8 is a cross-sectional view of the test specimen of the comparative example for the reflection cracking resistance performance.

본 발명의 응력흡수용 아스팔트 조성물 및 이를 이용한 응력흡수용 시트의 실시 예를 첨부도면을 참조하여 상세히 설명하기로 하며, 첨부 도면을 참조하여 설명함에 있어, 동일하거나 대응하는 구성 요소는 동일한 도면 번호를 부여하고 이에 대해 중복되는 설명은 생략하기로 한다.An embodiment of the stress-absorbing asphalt composition of the present invention and the stress-absorbing sheet using the same will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding components refer to the same reference numerals. And duplicate description thereof will be omitted.

또한, 이하 사용되는 제1, 제2 등과 같은 용어는 동일 또는 상응하는 구성 요소들을 구별하기 위한 식별 기호에 불과하며, 동일 또는 상응하는 구성 요소들이 제1, 제2 등의 용어에 의하여 한정되는 것은 아니다.In addition, terms such as first and second used below are merely identification symbols for distinguishing the same or corresponding components, and the same or corresponding components are limited by terms such as the first and second components. no.

또한, 결합이라 함은, 각 구성 요소 간의 접촉 관계에 있어, 각 구성 요소 간에 물리적으로 직접 접촉되는 경우만을 뜻하는 것이 아니라, 다른 구성이 각 구성 요소 사이에 개재되어, 그 다른 구성에 구성 요소가 각각 접촉되어 있는 경우까지 포괄하는 개념으로 사용하도록 한다.In addition, the coupling does not only mean the case where the physical contact is directly between the components in the contact relationship between the components, other components are interposed between the components, the components in the other components Use it as a comprehensive concept until each contact.

이하, 첨부표 및 도면을 참조하여 본 발명의 일 실시 예에 따른 응력흡수용 아스팔트 조성물 및 이를 이용한 응력흡수용 시트에 관하여 상세히 설명한다.Hereinafter, with reference to the accompanying table and the drawings will be described in detail with respect to the stress-absorbing asphalt composition and stress-absorbing sheet using the same according to an embodiment of the present invention.

본 발명의 응력흡수용 아스팔트 조성물은 브로운 아스팔트 55~65 중량%; Polynorborene(ethylene propylene rubber)인 고분자 개질제 5~15 중량%; 접착성능 부여제 1~10 중량%; Tetramethylthiuram disulfide(TMTD)인 가교 촉진제 0.1~1 중량%; 무기질필러 20~30 중량%;를 포함한다.Asphalt composition for stress absorption of the present invention is 55 to 65% by weight of blown asphalt; 5 to 15% by weight of a polymer modifier of polynorborene (ethylene propylene rubber); 1 to 10% by weight of an adhesion imparting agent; 0.1 to 1% by weight of a crosslinking promoter, Tetramethylthiuram disulfide (TMTD); Including inorganic filler 20 ~ 30% by weight.

이 경우, 본발명의 아스팔트 조성물은 전단변형에 관계없이 선형적 점탄성을 갖는 브로운 아스팔트를 사용함과 아울러, 저온상태에서도 유연성 유지가 가능한 노보넨(norbornene) 단량체로 형성된 단중합체 폴리노보낸(Polynorborene(ethylene propylene rubber)) 고무를 사용하기 때문에 탄성력이 우수하고, 인장성능이 우수하다.In this case, the asphalt composition of the present invention uses a blown asphalt having linear viscoelasticity regardless of shear deformation, and is made of a homopolymer polynorbornene (norbornene) monomer that can maintain flexibility even at low temperature. ethylene propylene rubber)) Due to the use of rubber, its elasticity is excellent and its tensile performance is excellent.

브로운 아스팔트는 스트레이트 아스팔트, 천연 아스팔트 중 적어도 어느 하나를 더 포함하는 것이 바람직하다.The blown asphalt further preferably includes at least one of straight asphalt and natural asphalt.

이 경우, 고가의 브로운 아스팔트 함량을 감소시켜 재료비를 절감하고, 브로운 아스팔트의 취성적 성질을 보완하기 위해 연성이 우수한 스트레이트 아스팔트 또는 천연 아스팔트를 첨가하여 연성을 증대시킬 수 있다. In this case, it is possible to reduce the expensive blown asphalt content to reduce the material cost, and to increase the ductility by adding a straight or natural asphalt having excellent ductility in order to supplement the brittle properties of the blown asphalt.

개질제는 분자량이 10,000 이상인 것이 바람직하다.The modifier preferably has a molecular weight of at least 10,000.

이 경우, 개질제는 분자량이 10,000 이상인 고분자 개질제를 사용하여 아스팔트 혼합물의 강도, 점도를 향상시킬 수 있다.In this case, the modifier may improve the strength and viscosity of the asphalt mixture by using a polymer modifier having a molecular weight of 10,000 or more.

개질제는 EPDM(Ethylene Propylene Diene Monomer) rubber, Neoprene, Nitrile rubber, Silicone rubber, Polychloroprene, Polyvinyl acetate, Polyethlene terephthalate, Polycabonate, t-polyoctenamer 중 적어도 어느 하나를 더 포함하는 것이 바람직하다.The modifier preferably further comprises at least one of EPDM (Ethylene Propylene Diene Monomer) rubber, Neoprene, Nitrile rubber, Silicone rubber, Polychloroprene, Polyvinyl acetate, Polyethlene terephthalate, Polycabonate, t-polyoctenamer.

이 경우, 초기 반응이 안정적인 EPDM(Ethylene Propylene Diene Monomer) rubber, Neoprene, Nitrile rubber, Silicone rubber, Polychloroprene, Polyvinyl acetate, Polyethlene terephthalate, Polycabonate 또는 t-polyoctenamer를 첨가하여 초기 촉매의 안전성을 향상시킬 수 있다.In this case, the stability of the initial catalyst can be improved by adding ethylene propylene diene monomer (EPDM) rubber, neoprene, nitrile rubber, silicone rubber, polychloroprene, polyvinyl acetate, polyethlene terephthalate, polycabonate or t-polyoctenamer.

접착성능 부여제는 석유수지, Terpene 수지, Penol 수지, xylene 수지 중 적어도 어느 하나 이상이 혼합된 것이 바람직하다.It is preferable that at least one or more of the tackifier, terpene resin, penol resin, and xylene resin is mixed.

가교촉진제는 Cross-link agenet, acid, carboxylic anhydride, carboxylic acidester, 유황(sulfur), 술폰산(sulphonic acid), 황산(sulphuric acid), 인산(phosphoric acid), acid chloride, phenol, 2-2'-Dithiobisbenzothiazole, N-t-Butylbenzothiazole-2-sulfennamode(NBTS) 중 적어도 어느 하나가 더 포함된 것이 바람직하다.Crosslinking accelerators are cross-link agenet, acid, carboxylic anhydride, carboxylic acidester, sulfur, sulfonic acid, sulfuric acid, phosphoric acid, acid chloride, phenol, 2-2'-Dithiobisbenzothiazole It is preferable that at least one of Nt-Butylbenzothiazole-2-sulfennamode (NBTS) is further included.

무기질 필러는 탄산칼슘, 황산바륨, Talc, Clay, 산화티타늄, APP(A Polypropylene) 중 적어도 어느 하나인 것이 바람직하다. The inorganic filler is preferably at least one of calcium carbonate, barium sulfate, Talc, Clay, titanium oxide, and APP (A Polypropylene).

본 발명의 일 실시 예에 따른 응력흡수용 아스팔트 조성물로 제작된 응력흡수용 시트(100)는 PE 부직포로 형성된 제1부직포층(110); 제1부직포층(110)의 상부에 응력 흡수용 아스팔트 조성물로 형성된 제1응력흡수층(120); 제1응력흡수층(120)의 상부에 또 따른 PE부직포로 형성된 제2부직포층(130); 제2부직포층(130)의 상부에 응력흡수용 아스팔트 조성물로 형성된 제2응력흡수층(140);을 포함한다.Stress absorbing sheet 100 made of a stress-absorbing asphalt composition according to an embodiment of the present invention comprises a first non-woven fabric layer 110 formed of a PE non-woven fabric; A first stress absorbing layer 120 formed of a stress absorbing asphalt composition on the first nonwoven fabric layer 110; A second nonwoven layer 130 formed of a PE nonwoven fabric on top of the first stress absorbing layer 120; And a second stress absorbing layer 140 formed of a stress absorbing asphalt composition on the second nonwoven fabric layer 130.

이 경우, 제1부직포층(110) 및 제2부직포층(130)을 형성하는 PE 부직포는 장섬유로 형성된 PE 부직포로서, 인장 저항능력이 우수하다.In this case, the PE nonwoven fabric forming the first nonwoven fabric layer 110 and the second nonwoven fabric layer 130 is a PE nonwoven fabric formed of long fibers and has excellent tensile resistance.

또한, 본 발명의 응력흡수용 시트는 17~23mm의 두께로 제작되는데, 제1부직포층(110)과 제2부직포층(130) 사이에 제1응력흡수층(120)을 12~18mm로 형성한다. In addition, the stress absorbing sheet of the present invention is manufactured to a thickness of 17 ~ 23mm, the first stress absorbing layer 120 is formed between 12 and 18mm between the first nonwoven fabric layer 110 and the second nonwoven fabric layer 130. .

위와 같이 제1부직포층(110)과 제2부직포층(130) 사이에 제1응력흡수층(120)을 형성하면 인장력에 저항하는 부직포층(110, 130)을 18~25mm의 두께로 형성한 것과 유사한 인장저항력을 가질 수 있다.When the first stress absorbing layer 120 is formed between the first nonwoven fabric layer 110 and the second nonwoven fabric layer 130 as described above, the nonwoven fabric layers 110 and 130 resisting the tensile force are formed to have a thickness of 18 to 25 mm. It can have similar tensile resistance.

이는 상부와 하부에 설치된 부직포층(110, 130)에 의해 제1응력흡수층(120)에 구속효과가 발생하여 제1응력흡수층이 인장성능이 향상되기 때문이다.This is because the non-woven fabric layers 110 and 130 disposed on the upper and lower portions generate a restraining effect on the first stress absorbing layer 120, thereby improving tensile performance of the first stress absorbing layer.

아래 표 1은 본 발명의 실시예에 따른 아스팔트 조성물의 배합비 및 물성을 나타낸 것이다.Table 1 below shows the mixing ratio and physical properties of the asphalt composition according to the embodiment of the present invention.

구분division 실시예Example 브로운아스팔트Blown asphalt 60.3 %60.3% 고분자
개질재Polymer
Modifier SBSSBS 4.9 %4.9% PolynorborenPolynorboren 4.9 %4.9% 석유수지Petroleum resin 5.6 %5.6% TMTDTMTD 0.1 %0.1% 무기질필러Mineral filler 24.3 %24.3% 계system 100 %100% 침입도 dmmBreakthrough dmm 3333 연화점 ℃Softening point ℃ 121121

표 2는 부직포층의 함량에 따른 응력흡수용 시트의 인장강도와 신장률을 실험한 결과이다.Table 2 shows the results of the tensile strength and elongation of the stress absorbing sheet according to the content of the nonwoven fabric layer.

구분division 실험방향Experimental direction 인장강도(N/mm)Tensile Strength (N / mm) 신장률, %Elongation,% 130 g
부직포130 g
Non-woven 길이방향Longitudinal direction 27.027.0 39.939.9 폭방향Width direction 22.022.0 45.145.1 180 g
부직포180 g
Non-woven 길이방향Longitudinal direction 30.730.7 42.342.3 폭방향Width direction 21.921.9 42.842.8

표 2의 결과와 같이 본원 발명의 응력흡수용 시트는 130 ~ 180g인 부직포로 형성된 것이 바람직하다. As shown in Table 2, the stress absorbing sheet of the present invention is preferably formed of a nonwoven fabric of 130 to 180g.

아래 표3은 본 발명의 응력흡수용 시트의 반사균열저항성능을 확인하기 위한 반사균열 시험결과로서, 반사균열의 시험장비는 도 6과 같다.Table 3 below is a reflection crack test result for confirming the reflection crack resistance of the stress-absorbing sheet of the present invention, the test equipment of the reflection crack is shown in FIG.

반사균열저항성능 시험을 위해 실시예와 비교예에 사용된 콘크리트 블럭은 도7, 도8과 같이 컷팅부를 형성하여 균열부를 모사하였다.Concrete blocks used in the Examples and Comparative Examples for the reflection crack resistance performance test to form a cut portion as shown in Fig. 7, 8 to simulate the crack portion.

또한, 실시예는 도7과 같이 콘크리트 블럭 상부에 응력흡수층을 형성하고, 응력흡수층 상부에 응력흡수용 시트를 형성한 후, 포장층(160)을 형성하였다.In addition, in the embodiment, a stress absorbing layer is formed on the upper portion of the concrete block as shown in FIG.

비교예는 콘크리트 도로부의 반사균열을 방지하기 위한 기존공법으로서, 87과 같이 콘크리트 블럭 상부에 구스아스팔트층을 형성하고, 구스아스팔트 상부에 포장층을 형성한 것이다. Comparative Example is a conventional method for preventing the reflection cracking of the concrete road portion, as shown in the 87 to form a goose asphalt layer on the concrete block, the pavement layer is formed on the upper asphalt asphalt.

표 3은 반복하중(Cycle, 차량바퀴 하중 횟수)의 증가에 대하여 콘크리트 블럭 컷팅부의 상부에 발생한 균열의 깊이를 측정한 것이다. Table 3 measures the depth of cracks that occurred on the top of the concrete block cut for increasing cyclic load (Cycle, number of wheel loads).

Figure 112016076861470-pat00001
Figure 112016076861470-pat00001

시험결과 기존 구스아스팔트를 사용한 것보다 본원발명의 응혁흡수용 시트를 사용한 것이 반복하중에 대한 균열 저항성능이 우수한 것을 확인할 수 있다.As a result of the test, it can be confirmed that the use of the leather absorption sheet of the present invention has better crack resistance against cyclic load than that of the conventional goose asphalt.

표 4는 표3의 시험결과를 요약한 것으로서, 실시예의 전단파괴수명(Cycle)이 비교예보다 약 5배 이상 긴 것을 확인할 수 있다.Table 4 summarizes the test results of Table 3, it can be confirmed that the shear failure life (Cycle) of the Example is about five times longer than the comparative example.

구분division 파괴수명
(cycle)Destruction Life
(cycle) Horizontal DS
(cycle/mm)Horizontal DS
(cycle / mm) Vertical crack
growth rate
(mm/cycle)Vertical crack
growth rate
(mm / cycle) 실시예Example 51,21551,215 22,98122,981 0.042 ㅧ10-2 0.042 ㅧ 10 -2 비교예Comparative example 10,46910,469 1,7281,728 0.38 ㅧ10-2 0.38 ㅧ 10 -2

본 발명의 일 실시 예에 따른 응력흡수용 시트(100)를 이용한 콘크리트 도로(1) 균열부(10) 보수공법은 균열부(10)의 표면을 청소하는 균열부 청소단계; 균열부(10)의 상면에 응력 흡수용 아스팔트 조성물을 포설하여 응력흡수층(150)을 형성하는 응력흡수층형성단계; 응력흡수층(150)의 상부에 응력흡수용 시트(100)를 설치하는 시트설치단계; 응력흡수용 시트(100)의 상부에 아스팔트 콘크리트를 타설하여 포장층(160)을 형성하는 포장층형성단계;를 포함한다.Concrete road using the stress absorbing sheet 100 according to an embodiment of the present invention (1) cracks 10 repair method is a crack cleaning step for cleaning the surface of the crack 10; A stress absorbing layer forming step of forming a stress absorbing layer 150 by disposing a stress absorbing asphalt composition on an upper surface of the crack part 10; Seat installation step of installing a stress absorbing sheet 100 on the upper portion of the stress absorbing layer 150; It includes; pavement layer forming step of forming a pavement layer 160 by pouring asphalt concrete on top of the stress absorbing sheet (100).

이 경우, 응력흡수층(150)은 5~10mm로 형성되고, 포장층은 약 80mm로 형성된다.In this case, the stress absorbing layer 150 is formed of 5 ~ 10mm, the packaging layer is formed of about 80mm.

1 : 콘크리트 도로 10 : 균열부
100 : 응력흡수용 시트 110 : 제1부직포층
120 : 제1응력흡수층 130 : 제2부직포층
140 : 제2응력흡수층 150 : 응력흡수층
160 : 포장층1: concrete road 10: crack part
100: stress absorption sheet 110: first nonwoven fabric layer
120: first stress absorbing layer 130: second nonwoven fabric layer
140: second stress absorbing layer 150: stress absorbing layer
160: paving layer

Claims (9)

브로운 아스팔트 55~65 중량%;
고분자 개질제 5~15 중량%;
접착성능 부여제 1~10 중량%;
Tetramethylthiuram disulfide(TMTD)인 가교 촉진제 0.1~1 중량%;
무기질필러 20~30 중량%;를 포함하되,
상기 브로운 아스팔트는 스트레이트 아스팔트, 천연 아스팔트 중 적어도 어느 하나를 더 포함하고,
상기 고분자 개질제는 중량 평균 분자량이 10,000 이상이며, EPDM(Ethylene Propylene Diene Monomer) rubber, Neoprene, Nitrile rubber, Silicone rubber, Polychloroprene, Polyvinyl acetate, Polyethlene terephthalate, Polycabonate, t-polyoctenamer 중 적어도 어느 하나를 더 포함하며,
상기 접착성능 부여제는 Terpene 수지, Phenol 수지, xylene 수지 중 적어도 어느 하나 이상이 혼합되고,
상기 무기질 필러는 황산바륨, Talc, Clay, 산화티타늄 중 적어도 어느 하나인 것을 특징으로 하는 응력흡수용 아스팔트 조성물로 제작된 응력흡수용 시트(100)로서,
PE 부직포로 형성된 제1부직포층(110);
상기 제1부직포층(110)의 상부에 상기 응력 흡수용 아스팔트 조성물로 형성된 제1응력흡수층(120);
상기 제1응력흡수층(120)의 상부에 또 따른 상기 PE 부직포로 형성된 제2부직포층(130);
상기 제2부직포층(130)의 상부에 상기 응력흡수용 아스팔트 조성물로 형성된 제2응력흡수층(140);을 포함하는 것을 특징으로 하는 응력흡수용 시트.
Blown asphalt 55-65 wt%;
5-15% by weight of polymer modifier;
1 to 10% by weight of an adhesion imparting agent;
0.1 to 1% by weight of a crosslinking promoter, Tetramethylthiuram disulfide (TMTD);
Inorganic filler 20-30% by weight; including,
The blown asphalt further includes at least one of straight asphalt and natural asphalt,
The polymer modifier has a weight average molecular weight of 10,000 or more, and further includes at least one of EPDM (Ethylene Propylene Diene Monomer) rubber, Neoprene, Nitrile rubber, Silicone rubber, Polychloroprene, Polyvinyl acetate, Polyethlene terephthalate, Polycabonate, t-polyoctenamer ,
The adhesive performance imparting agent is mixed at least one or more of Terpene resin, Phenol resin, xylene resin,
The inorganic filler is a stress-absorbing sheet 100 made of a stress-absorbing asphalt composition, characterized in that at least one of barium sulfate, Talc, Clay, titanium oxide,
A first nonwoven layer 110 formed of a PE nonwoven fabric;
A first stress absorbing layer (120) formed of the stress absorbing asphalt composition on the first nonwoven fabric layer (110);
A second nonwoven layer 130 formed of the PE nonwoven fabric on top of the first stress absorbing layer 120;
And a second stress absorbing layer (140) formed of the stress absorbing asphalt composition on an upper portion of the second nonwoven fabric layer (130).
삭제delete 삭제delete 삭제delete 삭제delete 제1항에 있어서,
상기 가교 촉진제는
Cross-link agent, carboxylic anhydride, carboxylic acidester, 유황(sulfur), 술폰산(sulphonic acid), 황산(sulphuric acid), 인산(phosphoric acid), acid chloride, phenol, 2-2'-Dithiobisbenzothiazole, N-t-Butyl benzothiazole-2-sulfenamide(NBTS) 중 적어도 어느 하나가 더 포함된 것을 특징으로 하는 응력흡수용 시트.
The method of claim 1,
The crosslinking accelerator
Cross-link agent, carboxylic anhydride, carboxylic acidester, sulfur, sulfonic acid, sulfuric acid, phosphoric acid, acid chloride, phenol, 2-2'-Dithiobisbenzothiazole, Nt-Butyl benzothiazole At least any one of -2-sulfenamide (NBTS) sheet for absorbing stress.
삭제delete 삭제delete 제1항 또는 제6항의 응력흡수용 시트(100)를 이용한 콘크리트 도로(1) 균열부(10) 보수공법으로서,
상기 균열부(10)의 표면을 청소하는 균열부 청소단계;
상기 균열부(10)의 상면에 상기 응력 흡수용 아스팔트 조성물을 포설하여 응력흡수층(150)을 형성하는 응력흡수층형성단계;
상기 응력흡수층(150)의 상부에 상기 응력흡수용 시트(100)를 설치하는 시트설치단계;
상기 응력흡수용 시트(100)의 상부에 아스팔트 콘크리트를 타설하여 포장층(160)을 형성하는 포장층형성단계;를 포함하는 것을 특징으로 하는 콘크리트 도로 균열부 보수공법.As a repair method of the crack road 10 of the concrete road (1) using the stress absorbing sheet 100 of claim 1,
A crack cleaning step of cleaning the surface of the crack part 10;
A stress absorbing layer forming step of forming the stress absorbing layer 150 by installing the stress absorbing asphalt composition on an upper surface of the crack part 10;
A seat installation step of installing the stress absorbing sheet 100 on the stress absorbing layer 150;
Concrete pavement crack repair method comprising a; pavement layer forming step of forming a pavement layer 160 by pouring asphalt concrete on top of the stress absorbing sheet (100).
KR1020160100824A 2016-08-08 2016-08-08 Compound of asphalt capable of absorbing stress and stress buffer sheet containing thereof KR102015836B1 (en)

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KR100605003B1 (en) 2005-02-02 2006-08-01 한진석 A road repairing composit and tape using it and manufacturing method thereof
KR100821238B1 (en) 2008-01-04 2008-04-11 인해엔지니어링(주) The apparatus and method of repair work on the road
JP2009126878A (en) 2007-11-20 2009-06-11 Shinreki Industry Co Ltd Repairing material for chap of asphalt pavement
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KR100605003B1 (en) 2005-02-02 2006-08-01 한진석 A road repairing composit and tape using it and manufacturing method thereof
JP2009126878A (en) 2007-11-20 2009-06-11 Shinreki Industry Co Ltd Repairing material for chap of asphalt pavement
KR100821238B1 (en) 2008-01-04 2008-04-11 인해엔지니어링(주) The apparatus and method of repair work on the road
KR101412510B1 (en) * 2013-06-04 2014-06-27 태륭건설(주) Guss asphalt binder and guss asphalt concrete and paving method thereof

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