KR20050014197A - High Strength Lightweight Aerated Concrete Composite and Process for The Same - Google Patents

High Strength Lightweight Aerated Concrete Composite and Process for The Same

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Publication number
KR20050014197A
KR20050014197A KR1020030052705A KR20030052705A KR20050014197A KR 20050014197 A KR20050014197 A KR 20050014197A KR 1020030052705 A KR1020030052705 A KR 1020030052705A KR 20030052705 A KR20030052705 A KR 20030052705A KR 20050014197 A KR20050014197 A KR 20050014197A
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South Korea
Prior art keywords
weight
strength
range
water
concrete composition
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KR1020030052705A
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Korean (ko)
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전대우
전호형
정민철
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전대우
전호형
정민철
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Priority to KR1020030052705A priority Critical patent/KR20050014197A/en
Publication of KR20050014197A publication Critical patent/KR20050014197A/en

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Classifications

    • 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
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • C04B38/106Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
    • 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
    • C04B18/00Use 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
    • C04B18/04Waste materials; Refuse
    • C04B18/14Waste materials; Refuse from metallurgical processes
    • C04B18/146Silica fume
    • 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
    • C04B2111/40Porous or lightweight materials
    • 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
    • C04B2111/52Sound-insulating materials
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • 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

Abstract

PURPOSE: A light weight foamed concrete composition having high strength and its production method thereof are provided to improve compression strength, while maintaining light weight, sound damping and heat insulating property, thereby being suitably used to secondary concrete products and various building structures. CONSTITUTION: The light weight foamed concrete composition having high strength is produced by: mixing a raw material mix comprised of 40-60wt% of cement, 30-50wt% of slag powder, 10-30wt% of high strength admixture, 1-5wt% of silica fume and 0.01-0.1wt% of fiber with 40-60wt% of water to form cement slurry; preparing a foaming solution having a concentration of 2-4% by mixing an animal-originated foaming agent with water; and mixing 2-50wt% of the foaming solution with 50-98wt% of the cement slurry.

Description

고강도 경량 기포콘크리트 조성물 및 그 제조방법 {High Strength Lightweight Aerated Concrete Composite and Process for The Same}High strength lightweight foamed concrete composition and method for manufacturing same {High Strength Lightweight Aerated Concrete Composite and Process for The Same}

본 발명은 고강도 경량 기포콘크리트 조성물 및 그 제조방법에 관한 것으로서, 보다 상세하게는 압축강도를 크게 향상시켜 각종 건축 및 토목 구조물과 콘크리트 2차제품군에 확대 사용하는 것이 가능한 고강도 경량 기포콘크리트 조성물 및 그 제조방법에 관한 것이다.The present invention relates to a high-strength lightweight foamed concrete composition and a method for manufacturing the same, and more particularly, a high-strength lightweight foamed concrete composition which can be widely used in various architectural and civil structures and concrete secondary product groups by greatly improving the compressive strength, and the preparation thereof. It is about a method.

일반적으로 경량 기포콘크리트는 흡습성과 건조수축이 보통 콘크리트보다 훨씬 큰 경량콘크리트의 일종으로, 동물성 또는 식물성 기포제를 사용하며 포틀랜트 시멘트와 물을 혼합하여 슬러리화한 상태에서 기포제가 발포기를 통과하여 발포된 기포액과 다시 혼합하여 적정한 물성이 확보되도록 제조한다.In general, lightweight foam concrete is a kind of lightweight concrete whose hygroscopicity and dry shrinkage are much higher than that of concrete. It uses animal or vegetable foaming agent, and foaming agent is foamed through foaming machine in the state of slurrying portland cement and water. It is prepared to ensure proper physical properties by mixing again with the bubble liquid.

종래 경량 기포콘크리트는 재료의 투입량에 따라 압축강도가 28일강도 기준으로 6∼60kg/㎠, 비중 0.5∼1.8 정도로 사용된다.Conventional lightweight foam concrete is used in the compressive strength of 6 ~ 60kg / ㎠, specific gravity 0.5 ~ 1.8 about 28 days of strength depending on the amount of material input.

상기 경량 기포콘크리트는 상온·상압에서 양생하는 것과 오토클레이브(autoclave) 양생하는 것의 2종류로 나뉜다.The lightweight foamed concrete is divided into two types: curing at room temperature and atmospheric pressure and autoclave curing.

상기에서 오토클레이브 양생한 경량 기포콘크리트는 실리카분이 많이 들어있는 모래와 생석회 등을 주원료로 만들며, 슬러리에 발포제(알루미나분말 등)와 안정제 등을 섞어 거푸집에 넣고 발포·팽창하여 케이크 모양으로 굳었을 때 꺼내 소요형상을 잘라 오토클레이브 안에서 약 180℃, 10기압으로 양생한다. 보통 ALC(autoclaved lightweight concrete)라고 하며 기건비중 약 0.5∼0.65 정도, 압축강도 약 30kgf/㎠이고, 흡수건조할 때 용적변형이 적고 균열이 잘 생기지 않으며 단열성이 뛰어나다.Light-weight foamed concrete cured by autoclave is made of sand and quicklime containing a lot of silica powder as the main raw materials, and when it is mixed with foaming agent (alumina powder) and stabilizer in a slurry, it is foamed and expanded to solidify into a cake shape. Take out and cut out the required shape and cure in autoclave at about 180 ℃ and 10 atm. It is usually called ALC (autoclaved lightweight concrete), and the weight ratio is about 0.5 ~ 0.65, the compressive strength is about 30kgf / ㎠, volume absorption is small when it is absorbed and dried.

그러나 오토클레이브 양생한 경량 기포콘크리트의 경우에는 고온, 고압을 유지하는 오토클레이브 안에서 양생하여야 하므로, 제조할 수 있는 제품의 형상 및 크기에 제한이 있으며, 제조원가가 많이 소요되는 단점이 있다.However, in the case of lightweight foamed concrete cured by autoclave, it must be cured in an autoclave maintaining high temperature and high pressure. Therefore, there is a limitation in the shape and size of a product that can be manufactured and a lot of manufacturing cost is required.

그리고 상온·상압에서 양생하는 경량 기포콘크리트는 시멘트 반죽에 발포기를 통과한 발포액제를 혼합하여 상온·상압에서 양생하며, 보통 기건비중 0.4∼0.6, 압축강도 8∼12kgf/㎠로서 흡수성이 크고 건조시 균열이 생기는 단점이 있다.Lightweight foamed concrete cured at room temperature and atmospheric pressure is mixed with cement and the foaming agent passed through the foaming machine and cured at room temperature and atmospheric pressure.It is usually 0.4-0.6 in dry weight and 8-12kgf / ㎠ compressive strength. There is a disadvantage of cracking.

또 현장에서 타설되어 사용되는 상온·상압에서 양생하는 경량 기포콘크리트는 시멘트 슬러리를 제조시 적정의 작업성과 물성을 확보하기 위하여 과량의 단위수량을 혼합하므로, 경화되면서 나타나는 건조수축으로 균열이 다량 발생하여 물빠짐에 의한 침하현상이 발생한다. 따라서 주로 터널 뒷채움용, 폐광채움용, 아파트의 바닥충진용 등으로 활용되고 있으며, 다른 용도로의 활용은 거의 없는 실정이다.In addition, lightweight foam concrete, which is cured at room temperature and pressure used in the field, is mixed with an excessive amount of unit to ensure proper workability and physical properties when manufacturing cement slurry. Settlement phenomenon occurs due to drowning. Therefore, it is mainly used for filling the tunnel, filling the abandoned mine, filling the floor of the apartment, etc., and is rarely used for other purposes.

최근에는 비중은 크게 되지만 경량골재를 섞어 단점을 보완하고 강도를 늘린것을 개발하고 있다. 그러나 이 경우에는 경량화에 역행한다는 문제가 있다.In recent years, the proportion has increased, but light weight aggregates have been mixed to make up for shortcomings and to increase strength. However, in this case, there is a problem that it is against weight reduction.

본 발명은 상기와 같은 점에 착안하여 이루어진 것으로서, 경량성과 차음, 단열성 등을 그대로 유지하면서 압축강도가 크게 향상되어 각종 건축 및 토목 구조물과 콘크리트 2차제품군에도 확대하여 사용하는 것이 가능한 고강도 경량 기포콘크리트 조성물을 제공하는 데 그 목적이 있다.The present invention has been made in view of the above, high strength lightweight foam concrete that can be used in various construction and civil structures and concrete secondary product group to greatly improve the compressive strength while maintaining light weight, sound insulation, heat insulation, etc. The purpose is to provide a composition.

또 본 발명의 다른 목적은 경량성과 차음, 단열성 등을 그대로 유지하면서 압축강도가 크게 향상되어 각종 건축 및 토목 구조물과 콘크리트 2차제품군에도 확대하여 사용할 수 있는 경량 기포콘크리트를 제조할 수 있는 고강도 경량 기포콘크리트 조성물 제조방법을 제공하기 위한 것이다.In addition, another object of the present invention is a high-strength lightweight foam that can produce a lightweight foam concrete that can be used in a wide range of construction and civil engineering structures and concrete secondary product group to improve the compressive strength while maintaining light weight, sound insulation, insulation, etc. It is to provide a method for producing a concrete composition.

본 발명이 제안하는 고강도 경량 기포콘크리트 조성물은 시멘트에 슬래그 분말, 고강도 혼화재, 실리카 흄, 화이버 등을 첨가한 혼합원료와 물을 혼합하여 시멘트 슬러리를 만든 다음, 동물성 기포제를 물과 혼합하여 발포시킨 기포액을 시멘트 슬러리와 혼합하여 이루어진다.The high-strength lightweight foamed concrete composition proposed by the present invention mixes raw materials and water mixed with slag powder, high-strength admixture, silica fume, and fiber to make cement slurry, and then foams by mixing animal foam with water. By mixing the liquid with the cement slurry.

상기에서 혼합원료 전체에 대하여 시멘트는 대략 40∼60중량% 정도, 슬래그 분말은 대략 30∼50중량% 정도, 고강도 혼화재는 대략 10∼30중량% 정도, 실리카 흄은 대략 1∼5중량% 정도, 화이버는 대략 0.01∼0.1중량% 정도의 범위에서 각각 적당량을 첨가한다.About 40 to 60% by weight of cement, about 30 to 50% by weight of slag powder, about 10 to 30% by weight of high strength admixture, about 1 to 5% by weight of silica fume, Fibers are added in an appropriate amount in the range of approximately 0.01 to 0.1% by weight.

상기 혼합원료에 대하여 물은 대략 40∼60중량% 정도의 범위에서 혼합하여시멘트 슬러리를 만든다.Water is mixed in the range of about 40 to 60% by weight relative to the mixed raw material to form a cement slurry.

상기 동물성 기포제는 물에 농도가 대략 2∼4%로 되도록 혼합하고, 발포기에 의해 발포시킨다.The animal foaming agent is mixed with water so as to have a concentration of approximately 2 to 4%, and foamed by a foaming machine.

상기에서 전체 중량에 대하여 시멘트 슬러리는 대략 50∼98중량% 정도, 기포액은 대략 2∼50중량% 정도의 범위에서 적당량 혼합한다.In the above, the cement slurry is mixed in an appropriate amount in the range of about 50 to 98% by weight and the bubble liquid is about 2 to 50% by weight.

상기 고강도 혼화재는 입도분포 44㎛ 이하에서 잔사율이 10중량% 이하인 입자를 90중량% 이상 함유하는 재료를 사용한다.The high strength admixture uses a material containing 90% by weight or more of particles having a residual ratio of 10% by weight or less at a particle size distribution of 44 μm or less.

상기 고강도 혼화재는 무수석고 등을 주성분으로 이루어지며, 고성능 감수제와 함께 사용하여 증기양생을 하면 1,000kg/㎠ 이상이 압축강도가 얻어지는 재료이다.The high-strength admixture is composed of anhydrous gypsum and the like as a main component, and when used together with a high performance water reducing agent to steam curing, 1,000 kg / cm 2 or more is a material from which compressive strength is obtained.

상기 실리카 흄은 입도분포가 5∼15㎛의 범위이고, SiO2함유량이 92∼98중량% 범위인 재료를 사용한다.The silica fume uses a material having a particle size distribution in the range of 5 to 15 µm and a SiO 2 content in the range of 92 to 98% by weight.

상기 파이버는 폴리아크릴로니트릴계 파이버를 주로 사용하고, 필라멘트수가 12,000∼24,000의 범위이고, 필라멘트 지름이 0.5∼2.0denier의 범위이고, 잘라진 길이가 6.0∼12mm의 범위이고, 폴리아크릴로니트릴의 함유량이 99.0중량% 이상이고, 신장율이 8∼12%의 범위이고, 인장강도가 4∼8g/d의 범위이고, 인장탄성율이 100∼140gf/d의 범위이고, 비중이 1.15 이상인 재료를 사용한다.The fiber mainly uses polyacrylonitrile-based fibers, has a filament number in the range of 12,000 to 24,000, a filament diameter in the range of 0.5 to 2.0 denier, a cut length in the range of 6.0 to 12 mm, and a content of polyacrylonitrile. A material having 99.0% by weight or more, an elongation range of 8 to 12%, a tensile strength of 4 to 8 g / d, a tensile modulus of 100 to 140 gf / d, and a specific gravity of 1.15 or more is used.

본 발명의 고강도 경량 기포콘크리트 조성물 제조방법은 물에 동물성 기포제를 농도가 대략 2∼4%로 되도록 혼합하여 발포기를 통과 발포시켜 기포액을 만드는 단계와, 시멘트 40∼60중량%, 슬래그 분말 30∼50중량%, 고강도 혼화재10∼30중량%, 실리카 흄 1∼5중량%, 화이버 0.01∼0.1중량%의 범위에서 혼합하여 혼합원료를 만든 다음 혼합원료에 대하여 40∼60중량%의 물을 혼합하여 시멘트 슬러리를 만드는 단계와, 상기 시멘트 슬러리 50∼98중량%와 기포액 2∼50중량%를 혼합하여 경량 기포콘크리트 조성물을 만드는 단계로 이루어진다.The method for producing a high-strength lightweight foamed concrete composition of the present invention comprises the steps of mixing the animal foaming agent in water to have a concentration of approximately 2 to 4% and foaming it through a foaming machine to form a foaming liquid, 40 to 60% by weight cement, 30 to slag powder 50% by weight, 10-30% by weight of high strength admixture, 1-5% by weight of silica fume, 0.01-0.1% by weight of fiber to make a mixed raw material, and then 40 to 60% by weight of water is mixed with the mixed raw material. A cement slurry is prepared, and a mixture of 50 to 98% by weight of the cement slurry and 2 to 50% by weight of the bubble liquid is prepared to form a lightweight foamed concrete composition.

상기에서 시멘트 슬러리와 기포액의 혼합비는 사용 용도에 따라 적당하게 선정하는 것이 바람직하다.In the above, the mixing ratio of the cement slurry and the bubble liquid is preferably appropriately selected depending on the intended use.

다음으로 본 발명에 따른 경량 기포콘크리트 및 그 제조방법의 다양한 실시예를 통하여 상세하게 설명한다.Next will be described in detail through various embodiments of the lightweight foam concrete and its manufacturing method according to the present invention.

[실시예 1]Example 1

먼저 물 39.0kg에 동물성 기포제 1.2kg을 혼합하여 기포가 충분히 발생되도록 발포기를 통과시켜 기포액을 만들었다. 그리고 포틀랜트 시멘트 480kg, 슬래그 분말 405kg, 고강도 혼화재 6kg, 실리카 흄 9kg, 파이버 0.1kg을 물 450kg과 함께 혼합 교반하여 시멘트 슬러리를 만들었다. 상기 기포액과 시멘트 슬러리를 혼합하여 고강도 경량 기포콘크리트 조성물을 얻었다.First, 1.2kg of animal foaming agent was mixed with 39.0kg of water, and foamed liquid was made by passing a foaming machine so that bubbles were sufficiently generated. Then, 480 kg of Portland cement, 405 kg of slag powder, 6 kg of high strength admixture, 9 kg of silica fume, and 0.1 kg of fiber were mixed and stirred together with 450 kg of water to make a cement slurry. The foamed liquid and cement slurry were mixed to obtain a high strength lightweight foamed concrete composition.

[실시예 2]Example 2

먼저 물 39.0kg에 동물성 기포제 1.2kg을 혼합하여 기포가 충분히 발생되도록 발포기를 통과시켜 기포액을 만들었다. 그리고 포틀랜트 시멘트 480kg, 슬래그 분말 357kg, 고강도 혼화재 144kg, 실리카 흄 9kg, 파이버 0.1kg을 물 450kg과 함께 혼합 교반하여 시멘트 슬러리를 만들었다. 상기 기포액과 시멘트 슬러리를 혼합하여 고강도 경량 기포콘크리트 조성물을 얻었다.First, 1.2kg of animal foaming agent was mixed with 39.0kg of water, and foamed liquid was made by passing a foaming machine so that bubbles were sufficiently generated. Then, 480 kg of portland cement, 357 kg of slag powder, 144 kg of high-strength admixture, 9 kg of silica fume, and 0.1 kg of fiber were mixed and stirred together with 450 kg of water to make a cement slurry. The foamed liquid and cement slurry were mixed to obtain a high strength lightweight foamed concrete composition.

[실시예 3]Example 3

먼저 물 39.0kg에 동물성 기포제 1.2kg을 혼합하여 기포가 충분히 발생되도록 발포기를 통과시켜 기포액을 만들었다. 그리고 포틀랜트 시멘트 240kg, 슬래그 분말 202kg, 고강도 혼화재 48kg, 실리카 흄 4kg, 파이버 0.1kg을 물 225kg과 함께 혼합 교반하여 시멘트 슬러리를 만들었다. 상기 기포액과 시멘트 슬러리를 혼합하여 고강도 경량 기포콘크리트 조성물을 얻었다.First, 1.2kg of animal foaming agent was mixed with 39.0kg of water, and foamed liquid was made by passing a foaming machine so that bubbles were sufficiently generated. And cement slurry was prepared by mixing and stirring 240 kg of Portland cement, 202 kg of slag powder, 48 kg of high strength admixture, 4 kg of silica fume, and 0.1 kg of fiber together with 225 kg of water. The foamed liquid and cement slurry were mixed to obtain a high strength lightweight foamed concrete composition.

[실시예 4]Example 4

먼저 물 39.0kg에 동물성 기포제 1.2kg을 혼합하여 기포가 충분히 발생되도록 발포기를 통과시켜 기포액을 만들었다. 그리고 포틀랜트 시멘트 240kg, 슬래그 분말 178kg, 고강도 혼화재 72kg, 실리카 흄 4kg, 파이버 0.1kg을 물 225kg과 함께 혼합 교반하여 시멘트 슬러리를 만들었다. 상기 기포액과 시멘트 슬러리를 혼합하여 고강도 경량 기포콘크리트 조성물을 얻었다.First, 1.2kg of animal foaming agent was mixed with 39.0kg of water, and foamed liquid was made by passing a foaming machine so that bubbles were sufficiently generated. And cement slurry was prepared by mixing and stirring 240 kg of Portland cement, 178 kg of slag powder, 72 kg of high strength admixture, 4 kg of silica fume, and 0.1 kg of fiber together with 225 kg of water. The foamed liquid and cement slurry were mixed to obtain a high strength lightweight foamed concrete composition.

상기 실시예 1∼실시예 4의 조성비를 다음의 표 1에 나타낸다.The composition ratio of the said Example 1-Example 4 is shown in following Table 1.

구 분division 실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 실시예 4Example 4 시멘트슬러리Cement Slurry 혼합원료Mixed raw material 시멘트cement 480480 480480 240240 240240 슬래그 분말Slag powder 405405 357357 202202 178178 고강도 혼화재High strength admixture 9696 144144 4848 7272 실리카 흄Silica fume 99 99 44 44 파이버Fiber 0.10.1 0.10.1 0.10.1 0.10.1 물 (단위수량)Water (unit quantity) 450450 450450 225225 225225 소 계sub Total 1440.11440.1 1440.11440.1 719.1719.1 719.1719.1 기포액Bubble amount 동물성 기포제Animal foam 1.21.2 1.21.2 1.21.2 1.21.2 물 (희석수량)Water (dilution amount) 39.039.0 39.039.0 39.039.0 39.039.0 소 계sub Total 40.240.2 40.240.2 40.240.2 40.240.2 합 계Sum 1480.31480.3 1480.31480.3 759.3759.3 759.3759.3

상기와 같이 얻어진 실시예 1∼실시예 4에 대하여 유동성(Flow)과 단위용적중량, 겉보기 비중, 7일 양생 및 28일 양생의 압축강도를 측정하여 다음의 표 2에 나타낸다.For Examples 1 to 4 obtained as described above, the flow strength (Flow), unit volume weight, apparent specific gravity, 7 days curing and 28 days curing were measured and shown in Table 2 below.

구 분division 실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 실시예 4Example 4 시멘트슬러리Cement Slurry 유동성 (cm)Fluidity (cm) 19.019.0 18.418.4 20.020.0 19.619.6 단위용적중량(kg/㎥)Unit weight (kg / ㎥) 19501950 19381938 18501850 18401840 시멘트슬러리+기포액Cement Slurry + Bubble 유동성 (cm)Fluidity (cm) 17.817.8 17.217.2 18.418.4 18.018.0 단위용적중량(kg/㎥)Unit weight (kg / ㎥) 10501050 10391039 850850 842842 겉보기 비중Apparent specific gravity 1.441.44 1.321.32 0.680.68 0.660.66 압축강도(kgf/㎠)Compressive strength (kgf / ㎠) 7일 양생7 days curing 160160 230230 3030 4040 28일 양생28 days curing 350350 420420 160160 200200 외관상 균열발생 유무Appearance of crack in appearance radish radish radish radish

상기한 표 2로부터 알 수 있는 바와 같이, 본 발명에 따른 고강도 경량 기포콘크리트 조성물의 실시예에 있어서는 고강도 혼화재 및 실리카 흄의 첨가에 따라 압축강도가 28일 양생의 경우 최소 160kgf/㎠ 이상으로 크게 향상되었으며, 파이버의 첨가에 따라 외관상 균열발생도 없었다. 그리고 겉보기 비중에 있어서는 1.5 이하를 유지하여 경량화가 가능하였다.As can be seen from Table 2, in the embodiment of the high-strength lightweight foamed concrete composition according to the present invention, the compressive strength is greatly improved to at least 160 kgf / cm 2 or more in the 28-day curing according to the addition of the high-strength admixture and silica fume There was no appearance of cracks due to the addition of fiber. In terms of apparent specific gravity, the weight was maintained by maintaining 1.5 or less.

따라서 본 발명에 다른 고강도 경량 기포콘크리트 조성물을 이용하여 패널 및 블록을 제작하는 경우 우수한 품질을 유지하는 것이 가능하고, 그 사용분야도 다양화하는 것이 가능하다.Therefore, when manufacturing a panel and a block using the high-strength lightweight foamed concrete composition according to the present invention, it is possible to maintain excellent quality, it is possible to diversify the field of use.

상기에서는 본 발명에 따른 고강도 경량 기포콘크리트 조성물 및 그 제조방법의 바람직한 실시예에 대하여 설명하였지만, 본 발명은 이에 한정되는 것이 아니고 특허청구범위와 발명의 상세한 설명의 범위 안에서 여러가지로 변형하여 실시하는 것이 가능하고, 이 또한 본 발명의 범위에 속한다.In the above, the high-strength lightweight foamed concrete composition according to the present invention and a preferred embodiment of the manufacturing method thereof have been described, but the present invention is not limited thereto, and various modifications can be made within the scope of the claims and the detailed description of the invention. This also belongs to the scope of the present invention.

상기와 같이 이루어지는 본 발명에 따른 고강도 경량 기포콘크리트 조성물에 의하면, 슬래그 분말, 고강도 혼화재, 실리카 흄 및 파이버를 첨가하므로, 종래보다 400% 이상 압축강도가 향상되고, 외관균열 발생이 억제되는 우수한 품질 및 특성을 보유한다. 따라서 경량성을 유지하면서 우수한 강도특성 및 균열저항성을 증대시키는 것이 가능하다.According to the high-strength lightweight foamed concrete composition according to the present invention made as described above, since the slag powder, high-strength admixtures, silica fume and fiber is added, the compressive strength is improved by 400% or more than the conventional, excellent quality and suppressed appearance cracking and Possess characteristics. Therefore, it is possible to increase the excellent strength characteristics and crack resistance while maintaining light weight.

그리고 본 발명에 따른 고강도 경량 기포콘크리트 조성물에 의하면, 우수한 품질을 보유하므로 다양한 건축 및 토목 구조물에 적용하는 것이 가능하고, 콘크리트 2차제품군에도 다양하게 활용하는 것이 가능하다.And according to the high-strength lightweight foam concrete composition according to the present invention, because it has excellent quality, it is possible to apply to a variety of construction and civil structures, it is possible to use a variety of concrete secondary product group.

Claims (6)

시멘트에 슬래그 분말, 고강도 혼화재, 실리카 흄, 화이버 등을 첨가한 혼합원료와 물을 혼합하여 시멘트 슬러리를 만든 다음, 동물성 기포제를 물과 혼합하여 발포시킨 기포액을 시멘트 슬러리와 혼합하여 이루어지는 고강도 경량 기포콘크리트 조성물.High strength lightweight foam made by mixing cement and slurry with mixed raw materials added with slag powder, high strength admixture, silica fume, and fiber to water, and then mixing foaming liquid by mixing animal foam with water Concrete composition. 제1항에 있어서,The method of claim 1, 상기 혼합원료 전체에 대하여 시멘트는 40∼60중량%, 슬래그 분말은 30∼50중량%, 고강도 혼화재는 10∼30중량%, 실리카 흄은 1∼5중량%, 화이버는 0.01∼0.1중량%의 범위에서 첨가하고,40 to 60 wt% of cement, 30 to 50 wt% of slag powder, 10 to 30 wt% of high strength admixture, 1 to 5 wt% of silica fume, and 0.01 to 0.1 wt% of fiber Add in, 상기 혼합원료에 대하여 물은 40∼60중량%의 범위에서 혼합하고,Water is mixed in the range of 40 to 60% by weight relative to the mixed raw material, 상기 동물성 기포제는 물에 농도가 2∼4%로 되도록 혼합하고,The animal foam is mixed with water so that the concentration is 2 to 4%, 상기 전체 중량에 대하여 시멘트 슬러리는 50∼98중량%, 기포액은 2∼50중량%의 범위에서 혼합하는 고강도 경량 기포콘크리트 조성물.High-strength lightweight foamed concrete composition, wherein the cement slurry is mixed in the range of 50 to 98% by weight, and the bubble liquid is in the range of 2 to 50% by weight. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 고강도 혼화재는 입도분포 44㎛ 이하에서 잔사율이 10중량% 이하인 입자를 90중량% 이상 함유하는 재료를 사용하는 고강도 경량 기포콘크리트 조성물.The high-strength admixture is a high-strength lightweight foam concrete composition using a material containing 90% by weight or more of particles having a residual ratio of 10% by weight or less at a particle size distribution of 44 μm or less. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 실리카 흄은 입도분포가 5∼15㎛의 범위이고, SiO2함유량이 92∼98중량% 범위인 재료를 사용하는 고강도 경량 기포콘크리트 조성물.The silica fume is a high-strength lightweight foamed concrete composition using a material having a particle size distribution in the range of 5 to 15 µm and a SiO 2 content in the range of 92 to 98% by weight. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 파이버는 폴리아크릴로니트릴계 파이버를 주로 사용하고, 필라멘트수가 12,000∼24,000의 범위이고, 필라멘트 지름이 0.5∼2.0denier의 범위이고, 잘라진 길이가 6.0∼12mm의 범위이고, 폴리아크릴로니트릴의 함유량이 99.0중량% 이상이고, 신장율이 8∼12%의 범위이고, 인장강도가 4∼8g/d의 범위이고, 인장탄성율이 100∼140gf/d의 범위이고, 비중이 1.15 이상인 재료를 사용하는 고강도 경량 기포콘크리트 조성물.The fiber mainly uses polyacrylonitrile-based fibers, has a filament number in the range of 12,000 to 24,000, a filament diameter in the range of 0.5 to 2.0 denier, a cut length in the range of 6.0 to 12 mm, and a content of polyacrylonitrile. High strength using a material having 99.0% by weight or more, an elongation range of 8 to 12%, a tensile strength of 4 to 8 g / d, a tensile modulus of 100 to 140 gf / d, and a specific gravity of 1.15 or more Lightweight foamed concrete composition. 물에 동물성 기포제를 농도가 2∼4%로 되도록 혼합하여 발포기를 통과 발포시켜 기포액을 만드는 단계와,Mixing the animal foaming agent in water so as to have a concentration of 2 to 4% and foaming it through a foaming machine to form a foaming liquid, 시멘트 40∼60중량%, 슬래그 분말 30∼50중량%, 고강도 혼화재 10∼30중량%, 실리카 흄 1∼5중량%, 화이버 0.01∼0.1중량%의 범위에서 혼합하여 혼합원료를 만든 다음 혼합원료에 대하여 40∼60중량%의 물을 혼합하여 시멘트 슬러리를 만드는 단계와,40 to 60% by weight of cement, 30 to 50% by weight of slag, 10 to 30% by weight of high-strength admixture, 1 to 5% by weight of silica fume, and 0.01 to 0.1% by weight of fiber to make mixed raw materials. Mixing 40 to 60% by weight of water to form a cement slurry, 상기 시멘트 슬러리 50∼98중량%와 기포액 2∼50중량%를 혼합하여 경량 기포콘크리트 조성물을 만드는 단계로 이루어지는 고강도 경량 기포콘크리트 조성물 제조방법.Method for producing a high-strength lightweight foamed concrete composition, comprising the step of mixing 50 to 98% by weight of the cement slurry and 2 to 50% by weight of the foam liquid to make a lightweight foamed concrete composition.
KR1020030052705A 2003-07-30 2003-07-30 High Strength Lightweight Aerated Concrete Composite and Process for The Same KR20050014197A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100648010B1 (en) * 2005-02-18 2006-11-23 전호형 Large-Sized Block for Wall of Housing and Construction Work Method for Wall of Housing Using The Same
KR100760039B1 (en) * 2007-04-20 2007-09-18 박민화 Manufacture method of quick setting light weight bubble cement which superior to insulating effect
KR101122038B1 (en) * 2011-07-29 2012-03-12 한일시멘트 (주) Ultra light aerated concrete composition and method of wall using the same
KR101626803B1 (en) * 2015-09-23 2016-06-03 (주)삼표산업 Light-weight foamed concrete composite for secondary products and a method for manufacturing concrete secondary products using the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100648010B1 (en) * 2005-02-18 2006-11-23 전호형 Large-Sized Block for Wall of Housing and Construction Work Method for Wall of Housing Using The Same
KR100760039B1 (en) * 2007-04-20 2007-09-18 박민화 Manufacture method of quick setting light weight bubble cement which superior to insulating effect
KR101122038B1 (en) * 2011-07-29 2012-03-12 한일시멘트 (주) Ultra light aerated concrete composition and method of wall using the same
KR101626803B1 (en) * 2015-09-23 2016-06-03 (주)삼표산업 Light-weight foamed concrete composite for secondary products and a method for manufacturing concrete secondary products using the same

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