KR100901883B1 - Cement concrete composite having iron oxide pigment - Google Patents

Cement concrete composite having iron oxide pigment Download PDF

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KR100901883B1
KR100901883B1 KR20080112333A KR20080112333A KR100901883B1 KR 100901883 B1 KR100901883 B1 KR 100901883B1 KR 20080112333 A KR20080112333 A KR 20080112333A KR 20080112333 A KR20080112333 A KR 20080112333A KR 100901883 B1 KR100901883 B1 KR 100901883B1
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iron oxide
pigment
cement
water
concrete
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KR20080112333A
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Korean (ko)
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박이근
임순옥
장진
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박이근
임순옥
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/06Oxides, Hydroxides
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use 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
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/30Oxides other than silica
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004Compounds chosen for the nature of their cations
    • C04B2103/0013Iron group metal compounds
    • C04B2103/0014Fe
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/80Optical properties, e.g. transparency or reflexibility
    • C04B2111/82Coloured materials
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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

Abstract

A cement concrete composite containing iron oxide pigment is provided to realize various-colored expressions according to the mixing ratio of iron oxide pigment and cement, fly ash, an air-entraining agent, fine aggregate and coarse aggregate. A cement concrete composite(40) comprises: 150~180kgf of water; 260~350kgf of cement; 800~1000kgf of fine aggregate; 850~1000kgf of coarse aggregate; 1.0%~10% of iron oxide liquid pigment on a basis of cement by weight; 0.6~1.5kgf of geotextile; 0.1~5kgf of mixing materials; and 0.3~4kgf of admixture. The iron oxide liquid pigment is prepared by mixing iron oxide pigment and water in a ratio of 1:0.8-1:1.2. The admixture represents an AE water reducing agent or high-functional AE water reducing agent.

Description

산화철계안료를 포함하는 시멘트 콘크리트 조성물{Cement concrete composite having iron oxide pigment}TECHNICAL FIELD The present invention relates to a cement concrete composite having iron oxide pigments,

본 발명은 국내에 풍부하게 생산되고 있는 산화철계안료를 액상화로 제조하여 다양한 색상의 컬러콘크리트포장을 시공할 수 있는 시멘트 콘크리트 조성물에 관한 것이다. The present invention relates to a cementitious concrete composition capable of producing a colored concrete pavement of various colors by liquefying iron oxide pigments produced in abundance in Korea.

일반적으로 시멘트 콘크리트는 매우 높은 압축강도와 내구성으로 인하여 현대 건축 및 토목분야의 도로포장에 광범위하게 사용되어 있다.In general, cement concrete is widely used for road pavement in modern construction and civil engineering fields due to its extremely high compressive strength and durability.

이와 같은 시멘트 콘크리트는 천연의 소재이지만 다른 마감재에 비하여 회색을 띄는 단조로운 색상으로 인해, 건축물의 마감재나 도로 포장의 마감재로 사용될 때 미감을 살리지 못하는 단점이 있다. Such cement concrete is a natural material, but it has a disadvantage in that it can not make use of aesthetic feeling when it is used as a finishing material of a building or a road pavement due to its monotonous color which is gray compared to other finishing materials.

이를 해결하기 위한 종래기술로서, 흙종류를 시멘트 콘크리트에 혼합하여 칼라포장을 하는 경우도 있으나, 흙을 섞은 시멘트 조성물은 내구성이 낮고 내구연한이 짧으며 먼지가 많이 발생되어 민원이 발생되고, 강도가 약하여 대형차량 통행 제한 문제가 있었다. As a conventional technique for solving this problem, there is a case where the soil type is mixed with cement concrete to perform color packing, but the cement composition containing the soil has a low durability, a short durability, a large amount of dust, There was a problem of restriction of passage of large vehicles.

본 발명은 상기와 같은 문제점을 감안하여 안출한 것으로, 본 발명의 목적은 강도, 내구성과 경제성이 우수하면서도 표면 질감이 자연스럽고 고급스러울 뿐 아니라 다양한 칼라의 시멘트 콘크리트 포장을 할 수 있는 시멘트 콘크리트 조성물을 제공하는 것이다. It is an object of the present invention to provide a cement concrete composition which is excellent in strength, durability and economic efficiency, and which is natural in appearance and has a high quality and can be packed in various colors of cement concrete. .

본 발명의 다른 목적은 시멘트 콘크리트에 산화철계안료를 이용하여 황토색과 그린색 등의 다양한 색상을 발현하여 미감을 살림과 동시에 자연친화적인 시멘트 콘크리트 조성물을 제공하고자 하는 것이다. Another object of the present invention is to provide a cement concrete composition that is environmentally friendly while exhibiting various colors such as yellow earth color and green color by using iron oxide pigments in cement concrete.

또한, 본 발명의 다른 목적은 시멘트 콘크리트 포장의 용도에 적합한 강도기준을 만족하고, 산화철계안료의 비중이 높아 골재간 미세공극을 채워주고 섬유의 가교역활을 하여 재료분리가 적은 시멘트 콘크리트 조성물을 제공하고자 하는 것이다. Another object of the present invention is to provide a cement concrete composition which satisfies the strength standard suitable for the use of cement concrete pavement and has a high specific gravity of iron oxide pigments, .

또한, 본 발명의 다른 목적은 산화철계안료를 이용하여 자연친화적인 다양한 칼라를 낼 수 있는 칼라콘크리트 포장공법을 제공하고자 하는 것이다.Another object of the present invention is to provide a color concrete paving method which can produce various colors that are environmentally friendly using iron oxide pigments.

상기와 같은 목적들을 달성하기 위하여, 본 발명에서는 산화철계안료와 물을 1:0.8 내지 1:1.2의 비율로 배합한 액상안료와, 시멘트, 물, 잔골재, 굵은 골재, 토목섬유, 혼화제를 배합한 시멘트 콘크리트 조성물이 제공된다.In order to achieve the above-mentioned objects, the present invention provides a process for producing a water-based pigment, which comprises mixing a liquid pigment in which an iron oxide pigment and water are blended in a ratio of 1: 0.8 to 1: 1.2 and a cement, water, fine aggregate, coarse aggregate, A cement concrete composition is provided.

본 발명에 있어서, 상기 시멘트와 물의 혼합비율은 1:0.7 내지 1:1.5로 될 수 있으며, 상기 산화철계안료는 산화제이철(Fe2O3)을 이용하여 조성한 안료이다. In the present invention, the mixing ratio of the cement to water may be 1: 0.7 to 1: 1.5, and the iron oxide pigment is a pigment prepared using ferric oxide (Fe 2 O 3 ).

산화철계안료[酸化鐵系顔料, iron oxide pigment]의 산화철에는 산화제일철(FeO), 산화제이철(Fe2O3), 사산삼화철(Fe3O4)이 있는데, 본 발명에 사용하는 산화철계안료는 산화제이철을 조성하여 다양한 색의 콘크리트포장을 시공할 수 있다.The iron oxide of the iron oxide pigment [iron oxide pigment] includes ferrous oxide (FeO), ferric oxide (Fe 2 O 3 ), and iron oxide ferrite (Fe 3 O 4 ) Pigments can be made of ferric oxide and concrete pavements of various colors can be constructed.

또한, 상기와 같은 본 발명의 목적들을 달성하기 위한 시멘트 콘크리트 조성물은 콘크리트 1㎥당, 150~180kgf 중량의 물; 260~350kgf 중량의 시멘트; 800~1000kgf 중량의 잔골재; 850~1000kgf 중량의 굵은 골재; 상기 시멘트 중량의 1.0%~10%인 산화철계 액상안료; 0.6~1.5kgf 중량의 토목섬유; 및 0.1~5kgf 중량의 혼화재료;를 포함하여 구성될 수 있다.In addition, the cement concrete composition for achieving the objects of the present invention as described above comprises water of 150 to 180 kgf per 1 m 3 of concrete; Cement weight of 260 ~ 350kgf; Fine aggregate weight of 800 to 1000 kgf; Coarse aggregate weighing 850 ~ 1000kgf; An iron oxide-based liquid pigment which is 1.0% to 10% of the weight of the cement; Geo fiber weighing 0.6 ~ 1.5kgf; And an admixture material having a weight of 0.1 to 5 kgf.

본 발명의 실시에 있어서, 0.3~4kgf 중량의 혼화제가 더 포함되고, 상기 혼화제는 AE감수제 또는 고성능 AE감수제가 사용될 수 있다. In the practice of the present invention, an admixture of 0.3 to 4 kgf weight is further included, and the admixture may be an AE water reducing agent or a high performance AE water reducing agent.

본 발명에 있어서, 상기 산화철계 액상안료는 산화철계안료와 물을 1:0.8 내지 1:1.2의 비율로 배합한 액상안료인 것이 바람직하다.In the present invention, the iron oxide-based liquid pigment is preferably a liquid pigment in which an iron oxide-based pigment and water are blended in a ratio of 1: 0.8 to 1: 1.2.

한편, 상기와 같은 본 발명의 목적들을 달성하기 위한 칼라콘크리트 포장공법은 산화철계안료와 물을 배합하여 액상안료로 혼합하는 단계; 시멘트, 물, 잔골재, 굵은골재, 토목섬유, 산화철계 액상안료, 혼화제를 배합하여 칼라콘크리트를 조성하는 단계; 상기 칼라콘크리트를 현장에서 타설하는 단계; 타설된 칼라콘크리트포장의 표면을 스크리드나 흙손, 나무고데기를 이용하여 1차적으로 마무리하는 단계; 상기 칼라콘크리트포장의 표면을 경화직전에 휘니셔와 흙손을 이용하여 2차 적으로 마무리하는 단계; 상기 칼라콘크리트포장을 양생포 또는 피막양생재를 이용하여 양생하는 단계; 및 상기 칼라콘크리트포장에 줄눈을 설치하여 절단하는 단계로 진행될 수 있다.The color concrete paving method for achieving the objects of the present invention includes mixing an iron oxide pigment with water and mixing the pigment with a liquid pigment; Cement, water, fine aggregate, coarse aggregate, geosynthetic fiber, iron oxide-based liquid pigment, and an admixture to form a color concrete; Casting the color concrete in situ; Finishing the surface of the poured color concrete pavement primarily by using a screed, a trowel, and a wooden solid iron; Finishing the surface of the color concrete pavement secondarily using finishing and troweling immediately before curing; Curing the color concrete pavement using a curing agent or a film curing agent; And a step of installing and cutting a joint in the color concrete pavement.

본 발명에 있어서, 상기 절단하는 단계 후 상기 칼라콘크리트포장에 표면강화제를 도포하는 단계가 더 포함될 수 있다.In the present invention, it is possible to further include a step of applying a surface strengthening agent to the color concrete pavement after the cutting step.

이상에서 본 바와 같이, 본 발명의 시멘트 콘크리트 조성물은 시멘트, 플라이에쉬, AE제, 잔골재, 굵은골재에 혼화재료로써 산화철계 액상안료를 시멘트의 중량비율로 적절히 조합하여 배합함으로써. 다양한 색상구현이 가능하며, 분말 안료의 사용에 따른 분진발생 등이 없어 친환경적이다.As described above, the cement concrete composition of the present invention can be prepared by appropriately combining iron oxide based liquid pigments as cement, fly ash, AE, fine aggregate and coarse aggregate as iron oxide based liquid pigments by weight ratio of cement. It is possible to implement various colors and it is eco-friendly because it does not generate dust due to use of powder pigment.

또한, 본 발명에 의한 시멘트 콘크리트 조성물은 자연친화적인 황토색 및 그린색 등의 다양한 색상조절이 가능하고, 고객이 요구하는 색상으로 시공이 가능하며, 재질의 강도가 높아 내구성 및 내구연한이 높고, 물에 대한 저항성이 강한 효과가 있다.Further, the cement concrete composition according to the present invention is capable of controlling various colors such as earthy ocher and green color which are friendly to nature, and can be installed in a color required by a customer, has high durability and durability due to high strength of materials, Resistance is strong.

이하, 본 발명의 시멘트 콘크리트 조성물과 이를 이용한 콘크리트 시공방법의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다. Hereinafter, preferred embodiments of the cement concrete composition of the present invention and the concrete construction method using the same will be described in detail with reference to the accompanying drawings.

본 발명의 시멘트 콘크리트 조성물은 시멘트, 물, 잔골재, 굵은 골재, 토목섬유, 혼화제 등을 배합한 원료에, 산화철계안료와 물을 혼합한 액상안료를 배합하여 구성된다. The cement concrete composition of the present invention is composed of a mixture of cement, water, fine aggregate, coarse aggregate, geosynthetic fiber, admixture and the like and a liquid pigment mixed with an iron oxide pigment and water.

첨부한 도 4는 본 발명의 산화철계안료와 물을 혼합한 액상안료를 나타낸 사진으로서, 산화철계안료와 물을 1:1의 비율로 혼합한 사진이다. 4 is a photograph showing a liquid pigment mixed with an iron oxide pigment and water of the present invention, wherein the iron oxide pigment and water are mixed at a ratio of 1: 1.

이와 같이 본 발명에서는 산화철계안료를 배합하여 시멘트 콘크리트 조성물을 구성하되, 상기 산화철계안료를 분진 상태로 혼합하는 것이 아니라 물과 혼합한 액상안료의 형태로 시멘트 콘크리트 조성물을 구성하는데 특징이 있다.As described above, the present invention is characterized in that a cement concrete composition is formed by blending an iron oxide pigment, and the cement concrete composition is formed in the form of a liquid pigment mixed with water rather than mixing the iron oxide pigment in a dusty state.

이와 같은 액상안료는 분말 안료의 사용에 따른 분진발생 등이 없어 친환경적이다. Such a liquid pigment does not generate dust due to the use of the powder pigment and is environmentally friendly.

또한, 분말 안료를 믹싱하는 것에 비해, 액상 안료를 믹싱하는 경우, 혼합되는 비율이 굉장히 우수하다. 예를 들어, 믹서트럭에서 콘크리트와 믹싱하는 경우, 분말은 믹서트럭에서 7~13분 정도 믹싱할 때 50%정도 혼합되는데 반해, 산화철계안료 분말을 물과 적정비율로 혼합한 액상안료는 100% 혼합되는 시험결과를 얻었다.Further, when mixing the liquid pigment, the mixing ratio is extremely excellent as compared with mixing the powder pigment. For example, when mixing with concrete in a mixer truck, the powder is mixed by 50% in 7 to 13 minutes mixing in a mixer truck, whereas the liquid pigment obtained by mixing iron oxide pigment powder with water in a proper ratio is 100% Mixed test results were obtained.

본 발명에 있어서, 상기 산화철계안료와 물은 1:0.8 내지 1:1.2의 비율로 배합하는 것이 바람직하다. In the present invention, the iron oxide-based pigment and water are preferably blended in a ratio of 1: 0.8 to 1: 1.2.

본 발명의 상기 산화철계안료는 산화제이철(Fe2O3)을 이용하여 조성한 안료를 사용한다. The iron oxide-based pigment of the present invention uses a pigment formed using ferric oxide (Fe 2 O 3 ).

산화철계안료[酸化鐵系顔料, iron oxide pigment]의 산화철에는 산화제일철(FeO), 산화제이철(Fe2O3), 사산삼화철(Fe3O4)이 있는데, 본 발명에 사용하는 산화철계안료는 산화제이철을 조성하여 다양한 색의 콘크리트포장을 시공할 수 있다.The iron oxide of the iron oxide pigment [iron oxide pigment] includes ferrous oxide (FeO), ferric oxide (Fe 2 O 3 ), and iron oxide ferrite (Fe 3 O 4 ) Pigments can be made of ferric oxide and concrete pavements of various colors can be constructed.

산화철은 무기안료로서, 무독성, 화학적 안정성이 있으며, 다양한 색을 낼 수 있는 장점이 있다. 도 5는 본 발명의 산화철계안료를 이용한 시멘트 콘크리트 조성물의 다양한 색상을 나타낸 것이다. 이처럼, 본 발명에서는 산화철계안료를 사용하여 적색과 그린색, 황토색을 내는 시멘트 콘크리트포장을 할 수 있다. Iron oxide is an inorganic pigment, has non-toxic and chemical stability, and has the advantage of producing various colors. 5 shows various colors of the cement concrete composition using the iron oxide-based pigment of the present invention. As described above, in the present invention, cement concrete pavements having red, green, and ocher colors can be formed using iron oxide pigments.

본 발명에 있어서, 상기 시멘트와 물의 혼합비율은 1:0.7 내지 1:1.5로 되는 것이 좋다. 즉, 본 발명에 따른 칼라콘크리트의 물-시멘트(W/C) 비율은 40%~60%가 바람직하다. 40% 이하는 물의 사용량이 작아져서 워커빌리티가 떨어지며, 60% 이상인 경우 물의 사용량이 많아 블리딩에 의한 레이탄스가 발생되고 재료분리 및 강도가 저하될 수 있기 때문이다.In the present invention, the mixing ratio of the cement and water is preferably 1: 0.7 to 1: 1.5. That is, the water-cement (W / C) ratio of the color concrete according to the present invention is preferably 40% to 60%. Less than 40% of the water is used because the amount of water used is reduced and the water ability is lowered. When the water content is more than 60%, the amount of water used is large, and therefore,

본 발명에 사용되는 시멘트는 포틀랜드시멘트를 사용하는 것이 바람직하고, 그 외에도 특수시멘트를 사용 할 수 있다. 물은 청정수를 사용한다.As the cement used in the present invention, it is preferable to use Portland cement. In addition, special cement can be used. Water uses clean water.

상기와 같이 산화철계 액상안료를 포함한 시멘트 콘크리트 조성물의 구성을 구체적으로 살펴보면, 콘크리트 1㎥당, 150~180kgf 중량의 물; 260~350kgf 중량의 시멘트; 800~1000kgf 중량의 잔골재; 850~1000kgf 중량의 굵은 골재; 상기 시멘트 중량의 1.0%~10%인 산화철계 액상안료; 0.6~1.5kgf 중량의 토목섬유; 및 0.1~5kgf 중량의 혼화재료를 포함하여 구성된다. The composition of the cement concrete composition including the iron oxide-based liquid pigment is as follows: water of 150 to 180 kgf per 1 m 3 of concrete; Cement weight of 260 ~ 350kgf; Fine aggregate weight of 800 to 1000 kgf; Coarse aggregate weighing 850 ~ 1000kgf; An iron oxide-based liquid pigment which is 1.0% to 10% of the weight of the cement; Geo fiber weighing 0.6 ~ 1.5kgf; And an admixture material having a weight of 0.1 to 5 kgf.

여기서, 상기 산화철계 액상안료는 산화철계안료와 물을 1:0.8 내지 1:1.2의 비율로 배합한 액상안료이다. Here, the iron oxide-based liquid pigment is a liquid pigment in which an iron oxide-based pigment and water are blended in a ratio of 1: 0.8 to 1: 1.2.

위와 같이 배합하여 시공할 경우 공극률 9~21%, 슬럼프 80~150mm, 28일 압축강도 18~30Mpa이다.When mixed as above, the porosity is 9 to 21%, the slump is 80 to 150 mm, and the 28-day compressive strength is 18 to 30 MPa.

이와 같은 본 발명은 시멘트 콘크리트포장 용도에 적합한 강도기준을 만족하 고, 산화철계안료의 비중이 높아 골재간 미세공극을 채워주고, 섬유의 가교역활을 하여 재료분리가 적고, 다양한 색상 발현이 용이한 장점이 있다.The present invention satisfies the strength standards suitable for cement concrete pavement applications, has a high specific gravity of iron oxide pigments, fills the fine pores of aggregates, serves as a crosslinking agent for fibers, has less material separation, .

본 발명의 실시예에서, 0.3~4kgf 중량의 혼화제를 더 포함할 수 있으며, 상기 혼화제는 AE감수제 또는 고성능 AE감수제가 사용될 수 있다. In an embodiment of the present invention, it may further comprise an admixture of 0.3 to 4 kgf weight, and the admixture may be an AE water reducing agent or a high performance AE water reducing agent.

잔골재를 첨가하는 경우 잔골재율(S/a)은 40%~60% 인 것이 바람직하다. 40% 이하이면 잔골재가 부족하기 때문에 포장 표면이 거칠고, 62%이상인 경우 잔골재의 사용량이 많아짐에 따라 강도 감소 현상과 단위 결합결재의 증가가 유발되기 때문이다. 골재는 한국산업규격에서 정하는 기준의 것을 사용한다. 골재의 최대치수는 25mm이하인 것이 바람직하다.When fine aggregate is added, the fine aggregate ratio (S / a) is preferably 40% to 60%. If the content is less than 40%, the surface of the pavement is rough because of the lack of fine aggregate, and when the amount of fine aggregate is more than 62%, the strength decrease phenomenon and increase of unit binding settlement are caused. The aggregate shall be of the standard specified by Korean Industrial Standards. The maximum dimension of the aggregate is preferably 25 mm or less.

본 발명에서 산화철계안료인 산화제이철(Fe2O3)은 천연으로는 적철석(赤鐵石)으로서 널리 산출되며, 적색빛깔의 요인이다. 적갈색 분말로 비중 4.5~5.2% 녹는점 1,550℃, 흡유량(吸油量)은 22~75% 이다. 햇빛, 공기, 수분, 열등에 대하여 상당히 안정하며, 한번 가열한 것은 녹슬지 않는다.In the present invention, iron oxide pigment (Fe 2 O 3 ), which is an iron oxide pigment, is widely produced as hematite (red iron stone) in nature and is a factor of red color. Reddish brown powder with specific gravity of 4.5 ~ 5.2% melting point 1,550 ℃ and oil absorption amount of 22 ~ 75%. It is fairly stable against sunlight, air, moisture, and heat, and once heated does not rust.

예전에는 황산철을 구워서 만들었으나 최근에는 철강공업이나 도금공업의 폐액에서 생긴 황산철 또는 염화철을 원료로하여 만든다. 제조법에 따라 적색인 것에서 황색, 갈색, 녹색등을 띠는데, 빛깔이 다른 원인으로서는 입자의 크기, 혼합물의 종류, 결정격자(結晶格子)의 완전성 등을 들 수 있다.In the past, it was made by baking iron sulfate, but recently it is made from ferrous sulfate or ferric chloride, which is produced from the waste water of the steel industry or the plating industry. Depending on the production method, there are red, yellow, brown, green and the like. Other causes of the color include particle size, kind of mixture, and completeness of crystal lattice.

공업용으로는 벵갈로라 불리는 적색안료(赤色顔料)로서, 또 유리, 귀금속, 다이아몬드의 면마재(硏磨材)로서 사용된다. 순도가 높은 것은 반도체로 사용되고, 또 마그넷, 자기(磁器)테이프의 원료로도 쓰인다. 따라서 산화철계안료 [酸化鐵系顔料, iron oxide pigment]는 다양한 색상을 발현함으로 도심의 미적인 감각과 자연친화적인이다. It is used as a red pigment (red pigment) called Bengalro for industrial use and also as a surface material of glass, precious metal and diamond. High purity is used as a semiconductor, and also as a raw material for magnets and magnetic tapes. Therefore, iron oxide pigments [iron oxide pigments] are aesthetically pleasing and natural-friendly, because they express various colors.

본 발명의 시멘트 중량 대비 산화철계 액상안료 첨가량에 따른 색상변화 시험 결과, 사용하는 안료 1kg당 물 0.8kg을 중량배합하여 콘크리트와 혼합믹싱하면 칼라콘크리트가 발현되는데 레디믹스트 콘크리트 1㎥당 공장배합에 따른 현장수정배합은 아래의 [표 1]와 같다.As a result of the color change test according to the addition amount of the iron oxide based liquid pigment to the weight of the cement of the present invention, when 0.8 kg of water is mixed per 1 kg of the pigment to be used and mixed with concrete, color concrete is expressed. The field correction formula is shown in [Table 1] below.

등급Rating 설계기준강도 (MPa)Design Criteria Strength (MPa) 최대골재치수 (mm)Maximum aggregate size (mm) 슬럼프 (mm)Slump (mm) 공기량 (%)Air volume (%) 단위수량(kg)Unit Quantity (kg) 시멘트 (kg)Cement (kg) W/C (%)W / C (%) S/A (%)S / A (%) 잔골재(kg)Fine aggregate (kg) 굵은골재(kg)Coarse aggregate (kg) AE감수제(kg)AE water reducing agent (kg) 플라이에쉬(kg)Fly Ash (kg) 3종3 species 2121 2525 100100 4.5± 1.54.5 ± 1.5 166166 255255 53.853.8 48.448.4 987987 865865 1.471.47 3838

안료 첨가량을 시멘트중량 대비 2.5% 첨가할 경우 시멘트와 플라이에쉬를 합한 중량 293kg에 대한 안료는 7.325kg, 물은 안료 1kg당 0.8kg이 혼합되므로 칼라콘크리트 1㎥당 물은 5.86kg 추가되어 단위수량이 166kg이며, 슬럼프는 100mm이다.When the amount of pigment added is 2.5% based on the weight of cement, 7.325kg of pigment is added to 293kg of weight combined with cement and fly ash and 0.8kg of water is mixed per kg of pigment, so 5.86kg of water per 1㎥ of color concrete is added, 166 kg, and the slump is 100 mm.

아래 [표 2]는 본 발명의 칼라콘크리트의 물성파악을 위한 시험을 나타낸 표이다. Table 2 below is a table showing tests for understanding the physical properties of the color concrete of the present invention.

배합재료량Amount of compounding material 규격standard W/B (%)W / B (%) S/a (%)S / a (%) 단위재료량(kg/m)Unit material amount (kg / m) 비고Remarks WW CC F/AF / A 잔골재Fine aggregate 굵은골재Coarse aggregate AEAE 안료Pigment 섬유fiber 25-21-10025-21-100 54.754.7 46.946.9 160160 255255 3838 987987 865865 1.471.47 8.38.3 0.90.9

·산화철계안료 : 밀도 5.2g/㎠, 표준사용량 8.3㎏/㎥· Iron oxide pigment: density 5.2 g / cm 2, standard amount 8.3 kg / m 3

·보강섬유 : 12㎜Cut, 표준사용량 0.6~0.9㎏/㎥· Reinforced fiber: 12 mmCut, standard usage 0.6 ~ 0.9㎏ / ㎥

물성결과(경시60분)Physical property results (60 mins overdue) 구분division 슬럼프(㎜)Slump (mm) 공기량(%)Air volume (%) 비고Remarks 일반Normal 115/80115/80 3.9/3.83.9 / 3.8 -AD 사용량:일반(0.5%),칼라(0.8%) -표면수 적용:칼라(-1%)-AD usage: general (0.5%), color (0.8%) - surface water application: color (-1%) 칼라color 125/85125/85 5.2/5.45.2 / 5.4

본 발명의 칼라콘크리트 조성물은 설계기준강도 21㎫ 기준으로 압축강도 시험결과 재령28일에서 23.5~24㎫ 의 결과가 나왔다.The color concrete composition of the present invention has a result of 23.5 to 24 MPa at 28 days as a result of compressive strength test based on 21 MPa of the design standard strength.

이와 같은 본 발명의 시멘트 콘크리트 조성물을 이용하여 포장을 하는 경우, 도 1에서 보는 바와 같이, 노상 지반의 다짐(10) 위에 보조기층(20)을 형성하고, 분리막(30)을 설치한 후 그 위에 본 발명의 시멘트 콘크리트 조성물(40)을 포장하여 칼라콘크리트 포장을 할 수 있다. 1, the auxiliary layer 20 is formed on the compaction 10 of the road bed, the separator 30 is installed on the auxiliary layer 20, The cement concrete composition 40 of the present invention can be packed to perform color concrete packing.

상기 보조기층(20)은 40㎜ 이하의 혼합 골재를 사용하는 것이 바람직하고, 분리막(30)은 PE 재질로서, 두께는 0.05mm 이상인 것을 사용한다.Preferably, the auxiliary layer 20 is made of mixed aggregate of 40 mm or less, and the separator 30 is made of a PE material having a thickness of 0.05 mm or more.

또한, 본 발명의 시멘트 콘크리트 조성물(40) 위에 표면강화제(50)를 더 도포할 수 있다. Further, the surface strengthening agent (50) may be further applied on the cement concrete composition (40) of the present invention.

이와 같은 구성을 가진 본 발명의 시멘트 콘크리트 조성물을 이용한 콘크리트 시공방법을 도 2를 참조하여 설명한다. The concrete construction method using the cement concrete composition of the present invention having such a construction will be described with reference to FIG.

먼저, 시공할 노상 지반(10)을 다진다.(S1)First, the hearth ground 10 to be constructed is crushed. (S1)

상기 노상 지반(10) 위에 보조기층(20)을 포설하고 다진다.(S2)An auxiliary layer 20 is laid on the road surface 10 (S2)

이후, 바닥에 분리막(30)을 설치하는데, 분리막(30)은 PE 재질로서, 두께는 0.05mm 이상인 것을 사용한다.(S3) Thereafter, the separator 30 is provided on the bottom, and the separator 30 is made of PE material having a thickness of 0.05 mm or more (S3)

이후, 경계석 상단에 보양을 한다.After that, you will cure on the top of the barrier.

이후, 본 발명의 시멘트 콘크리트 조성물(40)을 타설하여 칼라콘크리트 포장을 한다.(S4)Thereafter, the cement concrete composition 40 of the present invention is poured into the color concrete pavement (S4)

상기 칼라콘크리트 포장단계는 도 3에 도시한 바와 같은 순서에 의해 진행된다. The color concrete packaging step proceeds in the order shown in FIG.

즉, 산화철계안료와 물을 배합하여 산화철계 액상안료로 혼합하고(S401), 시멘트, 물, 잔골재, 굵은골재, 토목섬유, 산화철계 액상안료, 혼화제를 배합하여 칼라콘크리트를 조성한다(S402).That is, an iron oxide pigment and water are mixed and mixed with an iron oxide liquid pigment (S401) to form a color concrete by mixing cement, water, fine aggregate, coarse aggregate, geotextile, iron oxide based liquid pigment and admixture (S402) .

이후, 상기와 같이 제조된 칼라콘크리트를 믹서트럭에 운반하고, 펌프카 압송관을 이용하여 10~30cm 두께로 포설하여 칼라콘크리트를 현장에서 타설한다(S403). Then, the color concrete manufactured as described above is transported to a mixer truck and laid at a thickness of 10 to 30 cm by using a pumper conveyance pipe to pour the color concrete in situ (S403).

타설된 칼라콘크리트포장의 표면을 스크리드나 흙손, 나무고데기를 이용하여 1차적으로 마무리하고(S404), 상기 칼라콘크리트포장의 표면을 경화직전에 휘니셔와 흙손을 이용하여 2차적으로 마무리한다(S405). The surface of the poured concrete concrete pavement is firstly finished using a screed, a trowel, and a wooden iron paddle (S404), and the surface of the poured concrete concrete pavement is secondarily finished using finishing and troweling just before curing S405).

이후, 양생단계(S5)를 거치는데, 상기 칼라콘크리트포장의 표면이 건조수축균열이 발생되지 않도록 양생포 또는 피막양생재를 이용하여 양생한다. Thereafter, a curing step (S5) is carried out. The surface of the color concrete pavement is cured using a curing agent or a coating curing agent so that drying shrinkage cracking does not occur.

기온에 따라 2~4일 후 포장면을 5m간격으로 절단하고 절단시 발생된 슬러지를 청소한다. After 2 ~ 4 days depending on the temperature, cut the pavement at 5m intervals and clean the sludge generated during cutting.

차량이 빈번한 도로포장일 경우 줄눈을 설치하고 사람통행이 많은 도로나 차량 통행이 많은 도로는 칼라콘크리트포장면을 콘크리트표면강화제로 도포한 후 1~3일후 개방한다(S6).In the case of frequent road pavement, joints are installed, and on roads with many roads or heavy traffic, color concrete pavement surfaces are coated with concrete surface strengthening agent and then opened after 1 ~ 3 days (S6).

도 7a와 도 7b는 일반콘크리트와 본 발명의 칼라콘크리트의 대기 양생 후 표면을 찍은 사진으로서, 초기 경시물성은 동등한 수준이며, 칼라콘크리트의 경우 점성이 있고, 표면의 블리딩 발생이 적은 것으로 나타났다.FIGS. 7A and 7B are photographs showing the surface of the concrete after the atmospheric curing of the conventional concrete and the color concrete of the present invention. The initial aged properties are equivalent, and the color concrete has a viscosity and a small surface bleeding.

이상에서 본 발명은 기재된 구체 예에 대해서만 상세히 설명되었지만 본 발명의 기술사상 범위 내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속함은 당연한 것이다.While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

도 1은 본 발명에 따른 시멘트 콘크리트 포장의 단면을 도시한 단면도,1 is a cross-sectional view of a cement concrete pavement according to the present invention,

도 2는 본 발명에 따른 시멘트 콘크리트 시공방법의 전체공정을 도시한 순서도,2 is a flowchart showing an entire process of a cement concrete construction method according to the present invention,

도 3은 본 발명의 칼라콘크리트 포장공법을 도시한 순서도,3 is a flowchart showing a color concrete paving method of the present invention,

도 4는 본 발명의 산화철계안료와 물을 혼합한 액상안료를 나타낸 사진으로서, 산화철계안료와 물을 1:1의 비율로 혼합한 사진,FIG. 4 is a photograph showing a liquid pigment mixed with an iron oxide-based pigment and water according to the present invention. FIG. 4 is a photograph showing mixing of an iron oxide pigment and water at a ratio of 1: 1,

도 5는 본 발명의 산화철계안료를 이용한 시멘트 콘크리트 조성물의 다양한 색상을 나타낸 사진, FIG. 5 is a photograph showing various colors of the cement concrete composition using the iron oxide-based pigment of the present invention,

도 6은 본 발명의 산화철계 액상안료 첨가량에 따른 색상변화를 나타낸 사진으로서, 좌측부터 시멘트 330kg 당 액상안료 첨가량이 2.0%, 2.5%, 3.0%, 5.0%, 6.0%.FIG. 6 is a photograph showing the color change according to the addition amount of the iron oxide based liquid pigment according to the present invention, wherein the amount of the liquid pigment added per 330 kg of cement is 2.0%, 2.5%, 3.0%, 5.0%, 6.0%.

도 7a와 도 7b는 일반콘크리트와 본 발명의 칼라콘크리트의 대기 양생 후 표면을 찍은 사진으로서, 도 7a는 일반콘크리트이고 도 7b는 칼라콘크리트이다.FIGS. 7A and 7B are photographs showing the surface of a normal concrete and a color concrete of the present invention after air curing. FIG. 7A is a general concrete and FIG. 7B is a color concrete.

Claims (8)

콘크리트 1㎥당, Per cubic meter of concrete, 150~180kgf 중량의 물; 150-180 kgf water; 260~350kgf 중량의 시멘트; Cement weight of 260 ~ 350kgf; 800~1000kgf 중량의 잔골재; Fine aggregate weight of 800 to 1000 kgf; 850~1000kgf 중량의 굵은 골재; Coarse aggregate weighing 850 ~ 1000kgf; 상기 시멘트 중량의 1.0%~10%인 산화철계 액상안료;An iron oxide-based liquid pigment which is 1.0% to 10% of the weight of the cement; 0.6~1.5kgf 중량의 토목섬유;Geo fiber weighing 0.6 ~ 1.5kgf; 0.1~5kgf 중량의 혼화재료; 및A mixed material having a weight of 0.1 to 5 kgf; And 0.3~4kgf 중량의 혼화제;를 포함하며, 0.3 to 4 kgf by weight of an admixture, 상기 산화철계 액상안료는 산화철계안료와 물을 1:0.8 내지 1:1.2의 비율로 배합하여 이루어지고, The iron oxide-based liquid pigment comprises an iron oxide-based pigment and water in a ratio of 1: 0.8 to 1: 1.2, 상기 혼화제는 AE감수제 또는 고성능 AE감수제인 것을 특징으로 하는 시멘트 콘크리트 조성물.Wherein the admixture is an AE water reducing agent or a high performance AE water reducing agent. 삭제delete 제1항에 있어서, The method according to claim 1, 상기 산화철계안료는 산화제이철(Fe2O3)을 이용하여 조성한 안료인 것을 특징으로 하는 시멘트 콘크리트 조성물.Wherein the iron oxide-based pigment is a pigment prepared using ferric oxide (Fe 2 O 3 ). 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101514741B1 (en) * 2015-01-29 2015-05-04 (주)장성산업 Cement concrete composition and manufacture method of concrete block using the said
KR102140723B1 (en) 2019-04-12 2020-08-03 주식회사 한국건설기술공사 Composite of Red Mud Slurry for Road Pavement of Yellowish Concrete
KR20220028291A (en) * 2020-08-28 2022-03-08 주식회사 유니온 켐 Functional blue-colored concrete compositions

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Publication number Priority date Publication date Assignee Title
JPH0597493A (en) * 1991-10-04 1993-04-20 Morishita Bengara Kogyo Kk Method for enhancing compressive strength of cement mortar and concrete
JPH0891890A (en) * 1994-04-15 1996-04-09 Bayer Corp Preparation of iron oxide with enforced color and colored concrete product
JPH10287459A (en) 1997-04-08 1998-10-27 Bayer Kk Concrete, production and apparatus therefor
KR20020043146A (en) * 2000-12-01 2002-06-08 이강주 Color pattern gypsum concrete and construction method thereby

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0597493A (en) * 1991-10-04 1993-04-20 Morishita Bengara Kogyo Kk Method for enhancing compressive strength of cement mortar and concrete
JPH0891890A (en) * 1994-04-15 1996-04-09 Bayer Corp Preparation of iron oxide with enforced color and colored concrete product
JPH10287459A (en) 1997-04-08 1998-10-27 Bayer Kk Concrete, production and apparatus therefor
KR20020043146A (en) * 2000-12-01 2002-06-08 이강주 Color pattern gypsum concrete and construction method thereby

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101514741B1 (en) * 2015-01-29 2015-05-04 (주)장성산업 Cement concrete composition and manufacture method of concrete block using the said
KR102140723B1 (en) 2019-04-12 2020-08-03 주식회사 한국건설기술공사 Composite of Red Mud Slurry for Road Pavement of Yellowish Concrete
KR20220028291A (en) * 2020-08-28 2022-03-08 주식회사 유니온 켐 Functional blue-colored concrete compositions
KR102466712B1 (en) 2020-08-28 2022-11-11 주식회사 유니온 켐 Blue-colored concrete compositions

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