KR20030088808A - Permeable Concrete Composition reinforced with Fiber and Pavement Method using the same - Google Patents

Permeable Concrete Composition reinforced with Fiber and Pavement Method using the same Download PDF

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Publication number
KR20030088808A
KR20030088808A KR1020020026845A KR20020026845A KR20030088808A KR 20030088808 A KR20030088808 A KR 20030088808A KR 1020020026845 A KR1020020026845 A KR 1020020026845A KR 20020026845 A KR20020026845 A KR 20020026845A KR 20030088808 A KR20030088808 A KR 20030088808A
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South Korea
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fiber
concrete composition
water
permeable concrete
weight
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KR1020020026845A
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Korean (ko)
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KR100507024B1 (en
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김성수
하현노
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김성수
하현노
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Priority to KR10-2002-0026845A priority Critical patent/KR100507024B1/en
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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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/02—Cellulosic materials
    • 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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • C04B16/06—Macromolecular compounds fibrous
    • 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
    • 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
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302—Water reducers
    • 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
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00284—Materials permeable to liquids
    • 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
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • 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
    • E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
    • E01C7/262—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with fibrous material, e.g. asbestos; with animal or vegetal admixtures, e.g. leather, cork

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Road Paving Structures (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

PURPOSE: Provided is a fiber-reinforced water permeable concrete composition for use in the pavement of a road on which heavy load cars are passed, which has excellent water permeability, durability and impact strength. CONSTITUTION: The fiber-reinforced water permeable concrete composition comprises 20-50 wt% of a cement, 30-60 wt% of an aggregate, 0.2-2 wt% of a cellulose fiber, 0.2-5 wt% of a vinylon fiber and 5-30 wt% of water. The concrete composition optionally further comprises 3-20 wt% of fly ash and 0.01-0.1 wt% of a high performance water-reducing agent. The concrete composition is applied on the top of a roadbed and then cured to provide the paved road.

Description

섬유보강 투수성 콘크리트 조성물 및 그를 사용한 도로의 포장방법{Permeable Concrete Composition reinforced with Fiber and Pavement Method using the same}Permeable Concrete Composition reinforced with Fiber and Pavement Method using the same}

본 발명은 섬유보강 투수성 콘크리트 조성물 및 그를 사용한 도로의 포장 방법에 관한 것으로서, 더욱 상세하게는 투수성이 양호할 뿐만 아니라, 내구성 및 충격 강도가 우수하여, 무거운 하중의 차량이 통행하는 도로 포장용으로도 사용될 수 있는 섬유보강 투수성 콘크리트 조성물 및 그를 사용한 도로의 포장 방법에 관한 것이다.The present invention relates to a fiber reinforced permeable concrete composition and a pavement method using the same. More particularly, the present invention relates not only to good permeability but also to excellent durability and impact strength, so that the road can be paved by heavy load vehicles. The present invention relates to a fiber reinforced permeable concrete composition that can also be used, and a pavement method using the same.

현재 도로, 인도, 광장 등의 포장에서는 대부분 아스팔트 포장 또는 콘크리트 포장이 실시되고 있으며, 이러한 포장체들은 일반적으로 투수성이 없다. 따라서, 배수시설이 없거나 완벽하지 못한 곳에서는, 강우 시 많은 양의 물이 배수되지 못하고 포장체 상부에 고이게 된다. 이와 같은 고여진 물은 도로 교통에 장애를 초래할 뿐 만 아니라, 도로 표면에 다량의 수분이 존재하면, 차량의 제동 시 미끄럼 저항성을 저하시켜 사고위험을 증대시킨다. 또한 물이 포장체를 통하여 땅속으로 침투되지 못하고, 포장체 표면을 따라 하수관, 하천, 강 등으로 흘러 들어가므로 도시하천의 범람원인이 될 뿐만 아니라, 지하수가 고갈되고, 지중 미생물이 서식하지 못하거나, 토양이 사막화되는 등 여러 가지 자연환경적인 문제를 유발하고 있다.Currently, pavement of roads, sidewalks, squares, etc. is mostly asphalt pavement or concrete pavement, these pavement is generally not permeable. Thus, where there is no drainage system or incomplete, large amounts of water are not drained during rainfall and accumulate on top of the package. Such elevated water not only impedes road traffic, but when a large amount of water is present on the surface of the road, it reduces the sliding resistance when the vehicle is braked, thereby increasing the risk of an accident. In addition, water does not penetrate into the ground through the package, and flows into sewer pipes, rivers, and rivers along the surface of the package, which not only causes flooding of urban rivers, but also depletes groundwater, and prevents the incubation of underground microbes. This causes many natural and environmental problems, such as desertification of soil and desertification.

이와 같은 문제점을 해결하기 위한 일환으로 투수성 포장에 대한 관심이 증대되었으며, 실제로 투수성 콘크리트가 개발되어, 보도를 중심으로 한 생활관련도로, 광장, 주차장 등의 포장에 활용하고 있다. 도 1은 이와 같은 종래의 투수성 콘크리트의 단면 모식도이다. 도 1에 도시된 바와 같이, 종래의 투수성 콘크리트로 이루어진 포장체(10)는, 단순히 콘크리트 혼합 시 잔골재를 사용하지 않음으로서 포장체(10) 내부에 공극(12)을 형성시킨 것으로서, 콘크리트 포장체(10) 속의굵은 골재(14)들이 단순히 시멘트 풀(16)에 의하여 결합됨으로서, 포장체(10)의 역학적 특성이 좋지 못하고 내구성이 저하되는 단점이 있다. 또한, 일반적으로 콘크리트 포장체는 압축강도 보다는 휨강도에 의해 설계되고 포장체 단면적이 크기 때문에, 온도응력과 건조수축에 따른 균열이 발생되기 쉽고 동결융해작용을 받기가 쉽다. 따라서, 잔골재를 사용하지 않는 종래의 투수성 콘크리트 포장체(10)는 공극(12)이 많아 압축강도가 저하되고, 또한 휨인성이 적어 휨강도가 저하되므로, 온도응력과 건조수축에 따른 균열발생을 억제할 수 없는 단점이 있다. 이러한 휨인성을 보완하기 위하여, 일반 콘크리트 구조물에서와 같이 콘크리트 내부에 철근 또는 강섬유를 배치하여, 포장체의 휨인성을 향상시키는 방법을 고려할 수 있으나, 투수성 콘크리트 포장체는 물과의 접촉이 빈번하고, 물이 콘크리트 내부로 수분이 침투되기 때문에, 내부 강재가 부식되어 내구성이 크게 떨어지게 된다. 따라서, 하중을 크게 받는 도로의 포장에는 이와 같은 종래의 투수성 콘크리트를 적용할 수 없는 실정이다.In order to solve such a problem, interest in permeable pavement has increased, and in fact, permeable concrete has been developed, and is used for pavement of life-related roads, plazas, parking lots, and the like. 1 is a schematic cross-sectional view of such a conventional water-permeable concrete. As shown in FIG. 1, the pavement 10 made of conventional permeable concrete is formed by forming voids 12 inside the pavement 10 by simply not using fine aggregates when mixing concrete. Concrete pavement As the coarse aggregate 14 in the sieve 10 is simply joined by the cement paste 16, the mechanical properties of the package 10 are poor and the durability is lowered. In addition, in general, concrete pavement is designed by the bending strength rather than compressive strength and the pavement cross-sectional area is large, so that the crack caused by the temperature stress and drying shrinkage is likely to occur easily and freeze-thaw action. Therefore, the conventional permeable concrete pavement 10, which does not use fine aggregate, has a lot of voids 12, and thus the compressive strength is lowered, and the flexural strength is lowered because the flexural toughness is low. Thus, cracking occurs due to temperature stress and dry shrinkage. There is a disadvantage that cannot be suppressed. In order to compensate for the flexural toughness, a method of improving the flexural toughness of the pavement may be considered by arranging reinforcing steel or steel fibers in the concrete as in a general concrete structure. However, the permeable concrete pavement is frequently in contact with water. In addition, since water penetrates the water into the concrete, the internal steel is corroded and the durability is greatly reduced. Therefore, such a conventional water-permeable concrete cannot be applied to the pavement of a road that is heavily loaded.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 투수성 뿐 만 아니라, 충격 강도 및 내구성이 우수하여, 종래의 투수성 콘크리트로는 포장할 수 없는, 중(重)차량이 통행하는 도로까지도 포장할 수 있는 섬유보강 투수성 콘크리트 조성물을 제공하는 것이다.The present invention is to solve the conventional problems as described above, the object of the present invention is not only water permeability, but also excellent impact strength and durability, can not be paved by conventional water-permeable concrete, It is to provide a fiber-reinforced water-permeable concrete composition that can be paved even roads through which vehicles pass.

본 발명의 다른 목적은 향상된 충격저항성, 피로저항성, 동(動) 하중 저항성, 건조수축성, 내수성, 탄성력, 휨인성, 투수성 등을 구비할 뿐만 아니라, 동결융해작용 및 화학적 침식에 대한 내구성을 가짐으로서, 수명이 길고, 사용 용도가 광범위한 포장체를 형성할 수 있는 섬유보강 투수성 콘크리트 조성물 및 그를 사용한 도로의 포장 방법을 제공하는 것이다.Another object of the present invention is not only to provide improved impact resistance, fatigue resistance, dynamic load resistance, dry shrinkage resistance, water resistance, elasticity, flexural toughness, water permeability, etc., but also has durability against freeze-thawing action and chemical erosion. The present invention provides a fiber-reinforced water-permeable concrete composition capable of forming a package having a long life and a wide range of uses, and a method of paving a road using the same.

도 1은 종래의 투수성 콘크리트 포장체의 단면 모식도.1 is a schematic cross-sectional view of a conventional water-permeable concrete pavement.

도 2는 본 발명에 따른 섬유보강 투수성 콘크리트 조성물의 제조 방법을 설명하기 위한 흐름도.Figure 2 is a flow chart for explaining a method for producing a fiber reinforced permeable concrete composition according to the present invention.

도 3은 본 발명에 따른 섬유보강 투수성 콘크리트 조성물로 포장한 포장체의 단면 모식도.Figure 3 is a schematic cross-sectional view of a package packaged with a fiber-reinforced water-permeable concrete composition according to the present invention.

도 4 및 5는 각각 본 발명에 따른 섬유보강 투수성 콘크리트 조성물을 이용하여 포장한 노반 포장체 및 도로 포장체의 시공예를 도시한 도면.4 and 5 are views showing a construction example of the roadbed pavement and road pavement, respectively, using the fiber reinforced permeable concrete composition according to the present invention.

상기 목적을 달성하기 위하여, 본 발명은 시멘트, 골재, 셀룰로우스 섬유, 비닐론 섬유, 및 물을 포함하는 것을 특징으로 하는 섬유보강 투수성 콘크리트 조성물을 제공한다. 또한 본 발명은 상기 섬유보강 투수성 콘크리트 조성물을 노반의 상부에 포장하고 양생하는 것을 특징으로 하는 도로의 포장 방법을 제공한다.In order to achieve the above object, the present invention provides a fiber reinforced permeable concrete composition comprising cement, aggregate, cellulose fiber, vinylon fiber, and water. In another aspect, the present invention provides a pavement method of the road characterized in that the fiber reinforced permeable concrete composition is paved and cured on top of the roadbed.

여기서, 상기 시멘트의 함량은 20 내지 50중량%이고, 골재의 함량은 30 내지 60중량%이고, 셀룰로우스 섬유의 함량은 0.2 내지 2중량%이고, 비닐론섬유의 함량은 0.2 내지 5중량%이며, 물의 함량은 5 내지 30중량%인 것이 바람직하다. 또한, 상기 비닐론 섬유의 길이는 20 내지 50mm, 탄성계수는 25,000 내지 45,000kgf/cm2, 최대신장률은 12 내지 18%인 것이 바람직하며, 상기 셀룰로오스 섬유의 지름은 0.01 내지 0.1mm이고, 길이는 1 내지 10mm이며, 인장강도는 5,000 내지 7,000kgf/cm2인 것이 바람직하다.Here, the content of the cement is 20 to 50% by weight, the content of the aggregate is 30 to 60% by weight, the content of cellulose fibers is 0.2 to 2% by weight, the content of vinylon fibers is 0.2 to 5% by weight , The water content is preferably 5 to 30% by weight. In addition, the length of the vinylon fiber is 20 to 50mm, the elastic modulus is 25,000 to 45,000kgf / cm 2 , the maximum elongation is preferably 12 to 18%, the diameter of the cellulose fiber is 0.01 to 0.1mm, the length is 1 It is preferably from 10 mm, and the tensile strength is 5,000 to 7,000 kgf / cm 2 .

이하, 첨부된 도면을 참조하여, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있을 정도로, 본 발명에 따른 섬유보강 투수성 콘크리트 조성물 및 그를 사용한 도로의 포장 방법을 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings, a fiber reinforced water-permeable concrete composition and a pavement method using the same to the extent that a person skilled in the art can easily carry out the present invention. It will be described in detail.

본 발명에 따른 섬유보강 투수성 콘크리트 조성물은 통상적인 시멘트, 골재, 셀룰로우스 섬유(cellurous Fiber), 비닐론 섬유, 및 물을 포함하며, 필요에 따라, 플라이애쉬(Fly ash), 고성능감수제 등을 더욱 포함할 수 있다. 본 발명에 따른 섬유보강 투수성 콘크리트 조성물에 사용되는 시멘트 및 골재는 통상의 콘크리트 구조물의 제조에 사용되는 시멘트 및 골재가 광범위하게 사용될 수 있으나, 상기 시멘트로는 통상의 포틀랜드 시멘트를 사용하고, 상기 골재로는 5mm 내지 13mm의 직경을 가지는 상대적으로 굵은 골재를 사용하는 것이 바람직하다. 상기 골재의 직경이 5mm 미만인 경우에는 형성된 포장체의 공극이 작아져 투수성이 저하될 우려가 있으며, 13mm를 초과하는 경우에는 형성된 포장체의 강도가 저하되고, 균일한 포장면을 형성할 수 없는 단점이 있다.Fiber-reinforced permeable concrete composition according to the present invention includes conventional cement, aggregate, cellulose fiber (vinyl fiber), vinylon fiber, and water, if necessary, fly ash (fly fly), high-performance water-reducing agent, etc. It may further include. Cement and aggregate used in the fiber-reinforced permeable concrete composition according to the present invention may be widely used cement and aggregate used in the manufacture of conventional concrete structures, the cement is used as a conventional portland cement, the aggregate It is preferable to use a relatively coarse aggregate having a diameter of 5 mm to 13 mm. If the diameter of the aggregate is less than 5mm, there is a risk that the air gap of the formed package is small and the water permeability is lowered. If it exceeds 13mm, the strength of the formed package is reduced, it is not possible to form a uniform packaging surface There are disadvantages.

본 발명에 따른 섬유보강 투수성 콘크리트 조성물에 사용되는 셀룰로우스 섬유는 콘크리트의 인장강도를 증진시키고 균열의 발생을 저감시키는 기능을 하는 것으로서, 지름 0.01 내지 0.1mm, 바람직하게는 0.02 내지 0.05mm, 길이 1 내지 10mm, 바람직하게는 3 내지 8mm, 인장강도 5,000 내지 7,000kgf/cm2의 셀룰로오스섬유를 사용하는 것이 바람직하다. 상기 셀룰로오스 섬유의 지름 및 길이가 상기 범위 미만인 경우에는 포장체가 충분한 인장을 나타내지 못하며, 지름 및 길이가 상기 범위를 초과하는 경우에는 셀룰로오스 섬유가 시멘트 성분에 충분히 균일하게 분산되지 않을 우려가 있다.Cellulose fibers used in the fiber-reinforced permeable concrete composition according to the present invention is to enhance the tensile strength of the concrete and to reduce the occurrence of cracks, 0.01 to 0.1mm in diameter, preferably 0.02 to 0.05mm, Preference is given to using cellulose fibers of length 1 to 10 mm, preferably 3 to 8 mm and tensile strength of 5,000 to 7,000 kgf / cm 2 . If the diameter and length of the cellulose fibers are less than the above ranges, the package may not exhibit sufficient tension. If the diameters and lengths exceed the above ranges, the cellulose fibers may not be uniformly dispersed in the cement component.

본 발명에 따른 섬유보강 투수성 콘크리트 조성물에 사용되는 비닐론 섬유는 어망(漁網)·육상망·밧줄·범포·천막·포장재료, 농업용 천, 컨베이어 벨트, 자전거의 타이어코드 등으로 통상적으로 사용되는 것으로서, 1 데니어당 5g이상의 높은 강도를 가지며, 내후성(耐候性), 내약품성, 내부패성 등이 우수한 특성을 가진다. 상기 비닐론 섬유는 본 발명에 따른 콘크리트 포장체 내에서 시멘트와 강력히 접착함으로서, 철근과 거의 같은 인장강도를 나타냄과 동시에, 콘크리트 포장체에 메트릭스(Co-matrix)구조를 부여하여, 포장체의 휨인성, 강도, 내구성 등을 향상시키며, 또한 셀룰로우스 섬유와 복합하여 사용됨으로서 건조 수축에 의한 균열을 방지하는 기능을 한다. 본 발명에 사용되는 비닐론 섬유의 길이는 20 내지 50mm, 탄성계수는 25,000 내지 45,000kgf/cm2, 바람직하게는 약 35,000kgf/cm2, 비중은 약 0.91, 최대신장률은 12 내지 18%, 바람직하게는 약 15%이고, 물흡수률은 가급적 작은 것, 바람직하게는 0%인 것을 사용한다. 여기서 비닐론 섬유의 길이가 20mm 미만인 경우에는 포장체의 인장강도가 저하될 우려가 있고, 50mm를 초과하는 경우에는 시멘트, 골재 등과의 혼합이 잘 이루어지지 않을 우려가 있다. 또한 비닐론 섬유의 탄성계수가 25,000kgf/cm2미만인 경우에는 작은 충격에도 섬유가 절단될 우려가 있고, 탄성계수가 45,000kgf/cm2를 초과하여도 인장강도를 더 이상 향상시키지 못한다. 또한, 상기 비닐론 섬유의 최대 신장률이 18%를 초과하면 콘크리트 포장체의 균열을 방지할 수 없어 포장체의 내구성을 저하시킬 우려가 있다.The vinylon fibers used in the fiber reinforced permeable concrete composition according to the present invention are commonly used as fishing nets, land nets, ropes, canvas, tents, packaging materials, agricultural cloths, conveyor belts, and tire cords for bicycles. It has a high strength of more than 5g per denier, and has excellent characteristics such as weather resistance, chemical resistance, and anti-corrosion resistance. The vinylon fiber strongly adheres to the cement in the concrete pavement according to the present invention, exhibits a tensile strength almost the same as that of the reinforcing bar, and imparts a matrix (Co-matrix) structure to the concrete pavement, thereby giving flexural toughness of the pavement. It improves strength, durability and the like, and is used in combination with cellulose fibers to prevent cracking due to dry shrinkage. The vinylon fiber used in the present invention has a length of 20 to 50 mm, an elastic modulus of 25,000 to 45,000 kgf / cm 2 , preferably about 35,000 kgf / cm 2 , a specific gravity of about 0.91, and a maximum elongation of 12 to 18%, preferably Is about 15% and water absorption is as small as possible, preferably 0%. If the length of the vinylon fiber is less than 20mm, there is a risk that the tensile strength of the package is lowered, if the length exceeds 50mm, there is a fear that the mixing with cement, aggregate, and the like. In addition, when the elastic modulus of the vinylon fiber is less than 25,000 kgf / cm 2 , there is a fear that the fiber is cut even with a small impact, even if the elastic modulus exceeds 45,000 kgf / cm 2 it does not improve the tensile strength any more. In addition, when the maximum elongation of the vinylon fiber exceeds 18%, cracking of the concrete pavement may not be prevented, which may lower the durability of the pavement.

본 발명에서 필요에 따라 사용되는 플라이애쉬는 콘크리트의 장기 강도를 증진시켜 포장체의 내구성을 강화시키고, 내화학성 및 작업성을 개선할 뿐 만 아니라, 콘크리트 조성물의 제조비용을 절감하는 기능을 한다. 이와 같은 플라이애쉬는 비표면적이 5,000cm2/g이상인 것을 사용하는 것이 바람직하다. 또한 본 발명에서 필요에 따라 사용되는 고성능 감수제는 콘크리트 입자의 계면에 흡착되어 입자에 정전기적인 반발력을 부여함으로서, 콘크리트 입자를 균일하게 분산시키고, 콘크리트 조성물의 유동성을 개선하며, 단위수량을 감소시키는 기능을 하는 것으로서, 상기 고성능 감수제로 통상적으로 사용되는 다양한 감수제 성분이 사용될 수 있으며, 예를 들면 멜라민 설폰산염, 나프타렌 설폰산염, 폴리스티렌(polystyrene) 설폰산염, 폴리카본산염 기본 골격을 가지는 분자량 만단위의 통상적인 합성 고분자 화합물이 상기 고성능 감수제로서 사용될 수 있다.Fly ash used as needed in the present invention enhances the long-term strength of the concrete to strengthen the durability of the package, improve the chemical resistance and workability, as well as functions to reduce the manufacturing cost of the concrete composition. It is preferable to use such a fly ash having a specific surface area of 5,000 cm 2 / g or more. In addition, the high-performance sensitizer used as needed in the present invention is adsorbed on the interface of the concrete particles to impart an electrostatic repulsive force to the particles, to uniformly disperse the concrete particles, improve the fluidity of the concrete composition, reducing the number of units As the high performance water reducing agent, various water reducing agent components conventionally used may be used. Conventional synthetic high molecular compounds can be used as the high performance sensitizer.

본 발명에 따른 섬유보강 투수성 콘크리트 조성물에 있어서, 각 성분의 함량은 요구되는 포장체의 강도, 시공 조건, 환경 등에 따라 달라질 수 있으나, 시멘트의 함량은 20 내지 50중량%, 바람직하게는 25 내지 45 중량%, 골재의 함량은 30 내지 60중량%, 바람직하게는 40 내지 55 중량%, 셀룰로우스 섬유의 함량은 0.2 내지 2중량%, 바람직하게는 0.5 내지 1 중량%, 비닐론섬유의 함량은 0.2 내지 5중량%, 바람직하게는 0.5 내지 2 중량%이고, 물의 함량은 5 내지 30중량%, 바람직하게는 10 내지 18 중량%이다. 여기서, 상기 시멘트의 함량이 20중량% 미만이거나 골재의 함량이 60중량%를 초과하는 경우에는 포장체의 결합력 및 내구성이 저하될 우려가 있고, 상기 시멘트의 함량이 50중량%를 초과하거나 골재의 함량이 30중량% 미만인 경우에는 포장체의 시공비용이 증가하고, 포장체의 투수성이 감소할 우려가 있다. 또한 상기 셀룰로오스 섬유의 함량이 0.2중량% 미만인 경우에는 충분한 인장강도 및 균열발생을 저감시키는 효과에 문제가 있으며, 2중량%를 초과하면 배합이 잘 이루어지지 않는 문제가 있고, 상기 비닐론 섬유의 함량이 0.2중량% 미만인 경우에는 형성된 포장체의 인장강도 및 내구성이 저하될 우려가 있고, 5중량%를 초과하는 경우에는 인장강도 및 내구성을 증진시키는 효과가 미비하고 배합이 어려운 문제가 있다.In the fiber reinforced permeable concrete composition according to the present invention, the content of each component may vary depending on the strength, construction conditions, environment, etc. of the required package, but the content of cement is 20 to 50% by weight, preferably 25 to 45% by weight, the content of aggregate is 30 to 60% by weight, preferably 40 to 55% by weight, the content of cellulose fiber is 0.2 to 2% by weight, preferably 0.5 to 1% by weight, the content of vinylon fiber 0.2 to 5% by weight, preferably 0.5 to 2% by weight, and the water content is 5 to 30% by weight, preferably 10 to 18% by weight. Here, when the content of the cement is less than 20% by weight or the content of the aggregate exceeds 60% by weight, there is a fear that the bonding strength and durability of the package is lowered, the content of the cement exceeds 50% by weight or of the aggregate If the content is less than 30% by weight, the construction cost of the package increases, there is a fear that the permeability of the package decreases. In addition, when the content of the cellulose fiber is less than 0.2% by weight, there is a problem in reducing the sufficient tensile strength and the occurrence of cracking, when the content exceeds 2% by weight, there is a problem that the formulation is not made well, the content of the vinylon fiber If less than 0.2% by weight, there is a risk that the tensile strength and durability of the formed package is lowered, if more than 5% by weight, the effect of improving the tensile strength and durability is inadequate and difficult to mix.

또한, 본 발명에 따른 섬유보강 투수성 콘크리트 조성물에 있어서, 플라이애쉬가 사용될 경우, 그 사용량은 3 내지 20중량%인 것이 바람직하며, 고성능감수제가 사용될 경우 그 사용량은 0.01 내지 0.1 중량%인 것이 바람직하다. 이때 플라이애쉬의 사용량이 3중량% 미만인 경우에는 플라이애쉬를 첨가함에 따른 내구성, 내화학성, 작업성, 제조비용 절감 등의 효과를 얻을 수 없으며, 20중량%를 초과하면 시멘트, 골재 등의 함량이 작아져, 포장체의 내구성 등 물성이 오히려 저하된다. 또한 고성능 감수제의 사용량이 0.01중량% 미만이면 고성능 감수제를 첨가함에 따른 콘크리트 조성물의 유동성 개선효과를 얻을 수 없으며, 0.1중량%를 초과하여도 더 이상의 감수제 첨가효과를 얻을 수 없다.In addition, in the fiber reinforced permeable concrete composition according to the present invention, when fly ash is used, the amount thereof is preferably 3 to 20% by weight, and when the high performance water reducing agent is used, the amount thereof is preferably 0.01 to 0.1% by weight. Do. In this case, when the amount of fly ash used is less than 3% by weight, the effects of durability, chemical resistance, workability, and manufacturing cost can not be obtained by adding fly ash, and when it exceeds 20% by weight, the content of cement, aggregate, etc. is increased. It becomes small and the physical properties, such as durability of a package body, fall rather. In addition, when the amount of the high performance water reducing agent is less than 0.01% by weight, the fluidity improvement effect of the concrete composition may not be obtained by adding the high performance water reducing agent, and more than 0.1% by weight, no further water reducing agent may be obtained.

다음으로 도 2를 참조하여 본 발명에 따른 섬유보강 투수성 콘크리트 조성물의 제조방법을 설명한다. 도 2는 본 발명에 따른 섬유보강 투수성 콘크리트 조성물의 제조방법을 설명하기 위한 흐름도로서, 도 2에 도시된 바와 같이, 먼저 혼합기에 적정량의 시멘트, 셀룰로우스 섬유 및 고강도 비닐론섬유와 필요에 따라 플라이애쉬를 넣고 약 10 내지 60초, 바람직하게는 30초 동안 건조 믹싱한 후(S100), 물과 고성능 감수제를 혼합하여 투입하고 다시 약 10 내지 60초, 바람직하게는 30초 동안 믹싱한 후(S200), 골재를 투입하고 30초 내지 5분, 바람직하게는 1분에서 2분 동안 믹싱한(S300) 다음, 혼합기로부터 배출하여 본 발명에 따른 콘크리트 조성물을 제조할 수 있다. 이와 같이 제조된 섬유보강 투수성 콘크리트 조성물을 양생하면 도 3에 도시된 바와 같은 투수성 콘크리트 포장체의 구조를 가지게 된다. 도 3에 도시된 바와 같이, 본 발명의 일 실시예에 따른 섬유보강 투수성 콘크리트 조성물로 형성한 포장체(20)는 골재(24)의 사이에 투수성 공극(22)이 균일하게 형성되어 투수성을 부여하며, 골재(24)를 결합하는 시멘트 풀(26)의 내부에 비닐론 섬유(28)가 균일하게 분산되어, 포장체(20)의 충격저항성, 피로저항성, 동하중 저항성, 건조수축성, 내수성, 탄성력, 휨인성 등의 물성을 향상시킨다.Next, with reference to Figure 2 will be described a method of manufacturing a fiber reinforced permeable concrete composition according to the present invention. Figure 2 is a flow chart for explaining a method of manufacturing a fiber reinforced permeable concrete composition according to the present invention, as shown in Figure 2, first, a suitable amount of cement, cellulose fibers and high strength vinylon fibers in the mixer and, if necessary After putting the fly ash dry mixing for about 10 to 60 seconds, preferably 30 seconds (S100), and then mixed with water and a high performance water reducing agent and mixed for about 10 to 60 seconds, preferably 30 seconds ( S200), the aggregate is mixed and mixed for 30 seconds to 5 minutes, preferably 1 minute to 2 minutes (S300), and then discharged from the mixer to prepare a concrete composition according to the present invention. Curing the fiber-reinforced permeable concrete composition thus prepared will have a structure of the permeable concrete pavement as shown in FIG. As shown in FIG. 3, the pavement 20 formed of the fiber-reinforced water-permeable concrete composition according to an embodiment of the present invention has a water permeable gap 22 uniformly formed between the aggregates 24 and permeability. The vinylon fibers 28 are uniformly dispersed in the cement paste 26 that bonds the aggregates 24 to impart the properties, and thus, the impact resistance, fatigue resistance, dynamic load resistance, dry shrinkage, and water resistance of the package 20 are uniform. Improve physical properties such as elasticity and flexural toughness.

도 4 및 5는 본 발명에 따른 섬유보강 투수성 콘크리트 조성물을 이용하여 형성한 자전거 도로, 보도, 광장 등의 노반 포장체 및 도로 포장체의 시공예를 각각 도시한 것이다. 도 4에 도시한 바와 같이, 본 발명에 따른 섬유보강 투수성 콘크리트 조성물을 이용하여 자전거 도로, 보도 및 광장 등의 노반 포장체를 형성하기 위해서는 노반(40) 상부에 100 내지 150㎜ 두께의 크랏샤런 C-30, C-40의 쇄석을 다져 넣어 쇄석층(42)을 형성하고, 상기 쇄석층(42)의 상부에 모래로 이루어지며, 50 내지 80㎜ 두께의 휠타층(44)을 형성한 다음, 상기 휠타층(44) 상부에 50 내지 150mm 두께의 섬유보강 투수성 콘크리트 포장층(46)을 형성하고, 이를 로울러로 평활화하여 표면을 마무리하여, 자전거 도로, 보도 및 광장 등 비교적 하중이 적게 걸리는 노반 포장체를 형성한다. 또한, 본 발명에 따른 섬유보강 투수성 콘크리트 조성물을 이용하여 비교적 무거운 하중이 걸리는 도로 포장체를 형성하기 위해서는, 도 5에 도시된 바와 같이, 노반 위에 쇄석 또는 슬래그 골재를 사용한 노상(50)을 만들고, 상기 노상(50) 상부에 모래로 휠타층(52)을 형성하며, 상기 휠타층(52) 상부에 투수성 린콘크리트로 노반(54)을 형성한 다음, 상기 노반(54)의 상부에 섬유보강 투수성 콘크리트 조성물을 포장하고 양생하여 포장체(56)를 형성함으로서, 중차량이 다닐 수 있는 도로 포장체를 형성한다. 이와 같이 형성된 포장체는 종래의 투수성 콘크리트 포장체에 비해 휨강도와 충격저항성 및 동하중에 대한 저항성이 크기 때문에 자전거 도로 및 보도는 물론 중차량이 통행할 수 있는 도로포장에 사용하여도 외부 하중에 충분히 견딜 수 있는 포장 구조체를 형성한다.4 and 5 illustrate examples of the construction of roadbed pavements and road pavements, such as bicycle roads, sidewalks, squares, and the like, formed using the fiber reinforced permeable concrete composition according to the present invention. As shown in Figure 4, using the fiber reinforced permeable concrete composition according to the present invention in order to form a roadbed pavement such as bicycle roads, sidewalks and plazas, 100 to 150 mm thick Krasharan on the top of the roadbed 40 C-30, C-40 of crushed stone to form a crushed stone layer 42, made of sand on top of the crushed stone layer 42, to form a filterta layer 44 of 50 to 80 mm thick Forming a 50 to 150 mm thick fiber reinforced permeable concrete pavement layer 46 on the top of the wheel layer layer 44, and smoothing it with a roller to finish the surface, it takes relatively less load, such as bicycle roads, sidewalks and squares The roadbed package is formed. In addition, in order to form a road pavement with a relatively heavy load using the fiber reinforced permeable concrete composition according to the present invention, as shown in Figure 5, the roadbed 50 using crushed stone or slag aggregate is made on the subgrade. Forming a filter layer 52 with sand on the top of the roadbed 50, and forming a roadbed 54 with permeable lean concrete on the filter layer 52, then fibers on the top of the roadbed 54 By paving and curing the reinforcing permeable concrete composition to form the pavement 56, a road pavement can be carried by a heavy vehicle. The pavement formed as described above has sufficient flexural strength, impact resistance, and dynamic load resistance compared to conventional permeable concrete pavement, so it is sufficient for external loads even when used for road paving of bicycle roads, sidewalks, and heavy vehicles. Form a package structure that can withstand it.

다음으로 본 발명의 이해를 돕기 위한 바람직한 실시예를 제시한다. 그러나 하기의 실시예는 본 발명을 보다 쉽게 이해하기 위하여 제공되는 것이며, 본 발명을 한정하는 것은 아니다.Next, a preferred embodiment for helping the understanding of the present invention is presented. However, the following examples are provided to more easily understand the present invention, and do not limit the present invention.

[실시예]EXAMPLE

하기 표 1에 나타낸 콘크리트 배합 조성물을 가지도록, 시멘트, 셀룰로우스 섬유, 고강도 비닐론섬유 및 플라이애쉬를 혼합기에 넣고 약 30초 동안 건조상태로 믹싱한 후, 물과 고성능 감수제를 혼합하여 투입하고 다시 약 30초 동안 믹싱하였다. 다음으로 골재를 투입하고 약 2분 동안 믹싱한 다음, 혼합기로부터 콘트리트 조성물을 배출하였다.Cement, cellulose fibers, high-strength vinylon fibers and fly ash were put into a mixer to mix in a dry state for about 30 seconds, and then mixed with water and a high performance water reducing agent to have a concrete mixture composition shown in Table 1 below. Mix for about 30 seconds. Next, the aggregate was added and mixed for about 2 minutes, and then the concrete composition was discharged from the mixer.

시멘트cement 골재aggregate 플라이애쉬Fly ash 셀룰로오스 섬유Cellulose fiber 비닐론섬유Vinylon fiber 고성능감수제High Performance Supervisor 물water 30 중량%30 wt% 40중량%40 wt% 10중량%10% by weight 0.6중량%0.6 wt% 1중량%1 wt% 0.5중량%0.5 wt% 17.9중량%17.9% by weight

이와 같이 제조한 콘크리트 조성물을 약 10cm두께로 양생하여 포장체를 형성하고 강도를 측정한 결과 셀룰로오스 섬유 및 비닐론 섬유를 포함하지 않은 포장체의 경우보다 강도가 약 60% 정도 향상되었으며, 투수성은 거의 유사한 결과를 나타내어, 본 발명에 따른 섬유보강 투수성 콘크리트 조성물이 중(重)차량이 통행하는 도로 포장용으로 적합함을 확인할 있었다.The concrete composition thus prepared was cured to a thickness of about 10 cm to form a package and the strength was measured. As a result, the strength was about 60% higher than that of the package containing no cellulose fibers and vinylon fibers. As a result, it was confirmed that the fiber reinforced water permeable concrete composition according to the present invention is suitable for road pavement in which heavy vehicles pass.

이상에서 살펴본 바와 같이, 본 발명에 따른 섬유보강 투수성 콘크리트 조성물은 강도, 내구성 및 투수성이 우수하여, 종래의 투수성 콘크리트로는 포장할 수 없는, 중(重)차량이 통행하는 도로까지도 포장할 수 있으며, 향상된 충격저항성, 피로저항성, 동(動) 하중 저항성, 건조수축성, 내수성, 탄성력, 휨인성, 투수성 등을 구비할 뿐만 아니라, 동결융해작용 및 화학적 침식에 대한 내구성을 가짐으로서, 수명이 길고, 사용 용도가 다양한 포장체를 형성할 수 있다.As described above, the fiber-reinforced water-permeable concrete composition according to the present invention is excellent in strength, durability and water permeability, and can not be paved by conventional water-permeable concrete, even roads through which heavy vehicles pass. In addition to having improved impact resistance, fatigue resistance, dynamic load resistance, dry shrinkage, water resistance, elasticity, flexural toughness, water permeability, etc., and having durability against freezing-thawing action and chemical erosion, It is possible to form a package having a long service life and various uses.

Claims (6)

시멘트, 골재, 셀룰로우스 섬유, 비닐론 섬유, 및 물을 포함하는 것을 특징으로 하는 섬유보강 투수성 콘크리트 조성물.Fiber reinforced permeable concrete composition comprising cement, aggregate, cellulose fiber, vinylon fiber, and water. 제1항에 있어서, 상기 시멘트의 함량은 20 내지 50중량%이고, 골재의 함량은 30 내지 60중량%이고, 셀룰로우스 섬유의 함량은 0.2 내지 2중량%이고, 비닐론섬유의 함량은 0.2 내지 5중량%이며, 물의 함량은 5 내지 30중량%인 것을 특징으로 하는 섬유보강 투수성 콘크리트 조성물.According to claim 1, wherein the cement content is 20 to 50% by weight, the aggregate content is 30 to 60% by weight, the content of cellulose fibers is 0.2 to 2% by weight, the content of vinylon fibers is 0.2 to 5% by weight, the water content is 5 to 30% by weight of the fiber reinforced permeable concrete composition. 제2항에 있어서, 3 내지 20중량%의 플라이애쉬 및 0.01 내지 0.1 중량%의 고성능감수제를 더욱 포함하는 것을 특징으로 하는 섬유보강 투수성 콘크리트 조성물.The fiber reinforced water permeable concrete composition according to claim 2, further comprising 3 to 20% by weight of fly ash and 0.01 to 0.1% by weight of a high performance water reducing agent. 제1항에 있어서, 상기 비닐론 섬유의 길이는 20 내지 50mm, 탄성계수는 25,000 내지 45,000kgf/cm2, 최대신장률은 12 내지 18%인 것을 특징으로 하는 섬유보강 투수성 콘크리트 조성물.The fiber reinforced permeable concrete composition according to claim 1, wherein the vinylon fiber has a length of 20 to 50 mm, an elastic modulus of 25,000 to 45,000 kgf / cm 2 , and a maximum elongation of 12 to 18%. 제1항에 있어서, 상기 셀룰로오스 섬유의 지름은 0.01 내지 0.1mm이고, 길이는 1 내지 10mm이며, 인장강도는 5,000 내지 7,000kgf/cm2인 것을 특징으로 하는 섬유보강 투수성 콘크리트 조성물.The fiber reinforced permeable concrete composition according to claim 1, wherein the cellulose fiber has a diameter of 0.01 to 0.1 mm, a length of 1 to 10 mm, and a tensile strength of 5,000 to 7,000 kgf / cm 2 . 시멘트, 골재, 셀룰로우스 섬유, 비닐론 섬유, 및 물을 포함하는 섬유보강 투수성 콘크리트 조성물을 노반의 상부에 포장하고 양생하는 것을 특징으로 하는 도로의 포장 방법.A method of paving a road, characterized by paving and curing a fiber reinforced permeable concrete composition comprising cement, aggregate, cellulose fibers, vinylon fibers, and water on top of the subgrade.
KR10-2002-0026845A 2002-05-15 2002-05-15 Permeable Concrete Composition reinforced with Fiber and Pavement Method using the same KR100507024B1 (en)

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KR100800121B1 (en) * 2007-04-12 2008-02-01 김민우 Permeable ascon middle temperature composition, paving method using the same
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KR20050111991A (en) * 2004-05-24 2005-11-29 고려개발 주식회사 Permeable asphalt
KR100800121B1 (en) * 2007-04-12 2008-02-01 김민우 Permeable ascon middle temperature composition, paving method using the same
KR100884355B1 (en) * 2008-06-10 2009-02-17 양희용 Concrete composite contained textile polymer, concrete cross surface pavement using it and repair method of concrete structure
KR101686894B1 (en) * 2015-06-18 2016-12-16 현대엔지니어링 주식회사 A concrete structures methode using reinforcing fibers

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