KR100496646B1 - Lightweight foaming concreat - Google Patents

Lightweight foaming concreat Download PDF

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KR100496646B1
KR100496646B1 KR10-2002-0035694A KR20020035694A KR100496646B1 KR 100496646 B1 KR100496646 B1 KR 100496646B1 KR 20020035694 A KR20020035694 A KR 20020035694A KR 100496646 B1 KR100496646 B1 KR 100496646B1
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weight
parts
foaming agent
lightweight
anion
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KR10-2002-0035694A
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KR20030004032A (en
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최정실
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주식회사 리폼시스템
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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
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/02Elements
    • C04B22/04Metals, e.g. aluminium used as blowing agent
    • 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
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • 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
    • C04B38/02Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • 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
    • C04B2103/40Surface-active agents, dispersants
    • C04B2103/402Surface-active agents, dispersants anionic
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

본 발명은 고상분말 자기발포제 조성물 및 그를 이용한 경량기포 콘크리트에 관한 것으로, 더욱 상세하게는 작업공정의 단순화와 함께 균질한 제품의 생산이 가능하며, 일체의 장비 없이도 쉽고 빠르게 경량기포콘크리트를 제조하여 사용할 수 있도록 한 고상분말 자기발포제 조성물 및 그를 이용한 경량기포 콘크리트에 관한 것이다.The present invention relates to a solid-state powder self-foaming agent composition and lightweight foamed concrete using the same, and more particularly, it is possible to produce a homogeneous product with a simplification of the work process, and to produce and use lightweight foamed concrete quickly and easily without any equipment. It relates to a solid powder self-foaming agent composition and a lightweight foamed concrete using the same.

본 발명은, 현장타설용 경량기포콘크리트에 있어서: 알루미늄미세분말 20~30 중량부, 초산계 활성탄소 화합물 20~30 중량부, 계면활성제인 알파올레핀계음이온 20~30 중량부, 알킬벤젠계음이온 20~30 중량부의 조성비로 교반 혼합되고, 혼합된 화합물을 4-6시간 숙성하여 제조되는 것을 특징으로 한다. In the present invention, in the lightweight foamed concrete for in situ casting: 20 to 30 parts by weight of aluminum fine powder, 20 to 30 parts by weight of acetic acid-based activated carbon compound, 20 to 30 parts by weight of alpha olefin anion which is a surfactant, alkylbenzene anion The mixture is stirred and mixed at a composition ratio of 20 to 30 parts by weight, and the mixed compound is prepared by aging for 4-6 hours.

Description

고상분말 자기발포제 조성물 및 그를 이용한 경량기포 콘크리트{Lightweight foaming concreat}Solid powder self-foaming agent composition and lightweight foamed concrete using the same

본 발명은 고상분말 자기발포제 조성물 및 그를 이용한 경량기포 콘크리트에 관한 것으로, 더욱 상세하게는 작업공정의 단순화와 함께 균질한 제품의 생산이 가능하며, 일체의 장비 없이도 쉽고 빠르게 경량기포콘크리트를 제조하여 사용할 수 있도록 한 고상분말 자기발포제 조성물 및 그를 이용한 경량기포 콘크리트에 관한 것이다.The present invention relates to a solid-state powder self-foaming agent composition and lightweight foamed concrete using the same, and more particularly, it is possible to produce a homogeneous product with a simplification of the work process, and to produce and use lightweight foamed concrete quickly and easily without any equipment. It relates to a solid powder self-foaming agent composition and a lightweight foamed concrete using the same.

일반적으로, 공동주택의 옥상이나 바닥의 단열, 흡음을 하기 위해서 설치되는 경량기포콘크리트는 고압증기양생(ALC류), 상압증기양생(PALC류), 현장타설(아파트단열)용 등 크게 3종류로 구분되는데, 양생방법중에서도 기포의 생성방법에 따라 발포법, 프리폼(Pre-foam)법, 믹서폼(Mix-foam)법으로 구분된다. 이런 종류들은 슬러리속에 기포제를 혼합하여 발포시키는 방법과 미리 기포를 만든 다음 슬러리에 혼합시키는 방법으로 구별할 수 있다. 기포를 슬러리속에서 발포시키는 방법은 ALC와 같은 제품 제조시에 사용되는 방법으로, 금속분말 기포제(AL분말, Zn분말 등)를 사용한다. 한편, 미리 기포를 만들어 슬러리에 혼합시키는 방법은 현장 타설용 기포콘크리트 제조시에 사용되는 방법으로, 유기물 기포제(식물성 기포제, 동물성 단백질 기포제 등)를 사용한다.In general, lightweight foam concrete, which is installed to insulate the rooftop or floor of apartment buildings and absorb sound, is divided into three types: high pressure steam curing (ALC), atmospheric steam curing (PALC), and site casting (apartment insulation). Among the curing methods, foaming method, pre-foam method, and mixer foam (Mix-foam) method are classified according to the bubble generation method. These types can be distinguished by mixing the foaming agent in the slurry and foaming and mixing the foam in the slurry in advance. A method of foaming bubbles in a slurry is a method used in manufacturing a product such as ALC, and a metal powder foaming agent (AL powder, Zn powder, etc.) is used. On the other hand, the method of making the foam in advance and mixing it into the slurry is a method used in the production of foam concrete for in-site casting, using an organic foaming agent (vegetable foaming agent, animal protein foaming agent and the like).

ALC의 제조와 같이 슬러리에 기포제를 혼입하여 발포시키는 방법은 최종부피를 가늠할 수 없기 때문에, 완전 발포후 일정한 크기로 절단하여 양생 하지만, 기포를 미리 만들어 슬러리와 같이 혼합하는 방법은 설계부피 만큼만 타설하여 양생시키면 되므로, 타설후의 가공이 필요없는 차이가 있다. 또한, 금속분말 기포제는 높은 온도 조건에서 반응하는 경우가 대부분으로, 상온에서는 화학반응이 일어나지 않거나 늦게 일어나는 경향이 있어, 상온에서 제조시에 기포의 생성량이 적어 생산성이 떨어지는 반면에, 유기물 기포제는 상온에서 쉽게 발포되므로 현장 타설용으로 주로 사용된다.Since the final volume can not be determined by mixing the foaming agent in the slurry and foaming, as in the manufacture of ALC, it is cut and cured to a certain size after complete foaming.However, the method of preparing the foam in advance and mixing it with the slurry is poured by design volume. Since curing is necessary, there is a difference in that processing after pouring is unnecessary. In addition, the metal powder foaming agent reacts in a high temperature condition in most cases, the chemical reaction does not occur at room temperature or tends to occur late, the production amount at the time of production at room temperature is low, while the productivity is low, while the organic foaming agent is at room temperature It is easily foamed at, so it is mainly used for on-site pouring.

건조분말 기포제를 사용하는 선행기술로는 금속 알루미늄 분말이나 금속 아연 분말을 이용해 ALC 제품을 제조하는 기술이 대부분이다. 금속 분말이 현장 타설용 경량기포콘크리트에 사용된 경우는 지금까지 없었으며, 현장 타설용 경량기포콘크리트를 제조하기 위해서는 동물성 단백질 기포제가 사용되어 왔다. 이는 금속분말 기포제가 기포의 생성량이 적어 생산성이 떨어지고 고가이기 때문인 것으로, 투자비용 보다 경제성이 떨어져 효율적으로 사용되지 못하기 때문이다.The prior art using a dry powder foaming agent is a technique for producing ALC products using metal aluminum powder or metal zinc powder. Metal powders have never been used in light-weight foam concrete for in-site casting, and animal protein foaming agents have been used to produce light-in-foam concrete for in-site casting. This is because the metal powder foaming agent is low in productivity due to the low amount of bubbles produced, and is expensive, because it is less economical than the investment cost and cannot be effectively used.

종래 현장에서 경량기포콘크리트를 제조하는 방법은 약 20∼30톤의 큰 용기에 약 2%정도의 농도로 유기물 기포 원액을 희석한 다음, 기포액 이송 펌프를 이용하여 발포기로 압송할 때, 고압 콤프레셔에 의해 생성된 압축공기를 발포기로 이송되는 기포액에 분사시켜 기포군을 만들어 몰탈 슬러리와 함께 혼합하는 방법을 주로 사용하고 있다. 여기서, 기포군의 비중을 일반적으로 약 0.035∼0.05정도로 만들어 시멘트 슬러리와 혼합해야 안정된 기포콘크리트가 만들어지는 것으로 되어 있으나, 기포를 만드는 발포기의 형상이나 크기가 각 장비마다 일정하지 않기 때문에 기포군의 품질도 다르게 제조될 수 밖에 없다. 또한, 기포 원액을 희석하는 농도도 작업자에 따라 약 2 중량부에서 7 중량부까지 다르게 희석하므로, 기포군의 비중이 각양각색임은 물론 경량기포콘크리트의 품질이 불균질함은 당연하다고 할 수 있다.Conventionally, the method for manufacturing lightweight foam concrete is a high pressure compressor when diluting the organic foam stock solution at a concentration of about 2% in a large container of about 20-30 tons, and then pumping it to the foamer using the foam liquid transfer pump. The compressed air produced by the present invention is sprayed on the bubble liquid transferred to the foaming machine to form a bubble group, and a method of mixing with the mortar slurry is mainly used. Here, the specific gravity of the bubble group is generally about 0.035 to 0.05 and mixed with the cement slurry to form a stable foam concrete, but since the shape and size of the foaming machine making the bubble is not constant for each equipment, Quality can only be manufactured differently. In addition, since the concentration of diluting the bubble stock solution varies from about 2 parts by weight to 7 parts by weight depending on the operator, the specific gravity of the bubble group is varied and it is natural that the quality of the light foam concrete is heterogeneous. .

또한, 사용되고 있는 기포 원액이 유기물이기 때문에 기포콘크리트 타설 작업이 끝난 후, 기포 희석액이 남았을 경우 처리가 곤란하고, 남은 기포액을 방치하거나 하수구로 방류했을 경우 부패하여 악취가 발생하는 등의 문제점이 있다.In addition, since the bubble stock solution used is an organic substance, it is difficult to process the foam dilution after the completion of the foam concrete pouring process. .

이같은 경량기포콘크리트는 대개 선발포 방식으로 제조되며, 작업자의 숙련도에 따라 제품의 품질이 불균질하며 타설 후 기포소멸로 인한 함몰현장 균열현상, 단열, 흡음, 방수, 건조속도 저하 등은 현장시공에 있어서, 후속공정지연과 함께 부실시공 등으로 재시공하는 경우가 빈번하며, 공동주택의 윗층과 아래층 소음분쟁으로 인한 민원발생으로 사회적 문제가 되고 있는 실정이다.Such lightweight foam concrete is usually manufactured by pre-foaming method, and the quality of the product is heterogeneous according to the skill of the operator. As a result, there are frequent cases of reconstruction due to delayed construction and subsequent process delays, and the situation is becoming a social problem due to civil complaints caused by noise disputes on the upper and lower floors of multi-family houses.

본 발명은 상기와 같은 문제점을 감안하여 안출된 것으로, 작업공정의 단순화와 함께 균질한 제품의 생산이 가능하며, 일체의 장비 없이도 쉽고 빠르게 경량기포콘크리트를 제조하여 설치할 수 있도록 한 고상분말 자기발포제 및 그를 이용한 경량기포 콘크리트를 제공하는데 주된 목적이 있다. The present invention has been made in view of the above problems, it is possible to produce a homogeneous product with the simplification of the work process, solid-phase powder self-foaming agent to be able to quickly and easily manufacture and install lightweight foam concrete without any equipment; The main purpose is to provide lightweight foam concrete using the same.

본 발명의 다른 목적으로는 경량화, 단열화가 가능하면서도 차음 및 내화강도가 보강되도록 하는데 있다.Another object of the present invention is to be lightweight, heat-insulated, yet to be reinforced sound insulation and fire resistance.

본 발명의 또 다른 목적으로는 적은 비용으로도 쉽고 빠르게 경량기포콘크리트를 제조하여 사용할 수 있도록 하는데 있다.Another object of the present invention is to be able to manufacture and use lightweight foamed concrete quickly and easily at low cost.

이와 같은 목적을 효과적으로 달성하기 위해 본 발명은, 현장타설용 경량기포콘크리트에 있어서: 알루미늄미세분말 20~30 중량부, 초산계 활성탄소 화합물 20~30 중량부, 계면활성제인 알파올레핀계음이온 20~30 중량부, 알킬벤젠계음이온 20~30 중량부의 조성비로 교반 혼합되고, 혼합된 화합물을 4-6시간 18~40℃에서 숙성하여 제조되는 것을 특징으로 한다. In order to effectively achieve the above object, the present invention provides a lightweight foamed concrete for in situ casting: 20 to 30 parts by weight of aluminum fine powder, 20 to 30 parts by weight of acetic acid-based activated carbon compound, and 20 to 20 alphaolefinic anion as a surfactant. It is characterized in that the mixture is stirred at 30 parts by weight, the composition ratio of 20 to 30 parts by weight of alkylbenzene anion, and aged by mixing the mixed compound at 18 ~ 40 ℃ 4-6 hours.

또한, 알루미늄미세분말, 초산계 활성탄소 화합물, 계면활성제인 알파올레핀계음이온, 알킬벤젠계음이온을 교반 혼합하여 제조한 고상분말자기발포제 0.1~0.5 중량부, 포틀랜드시멘트 70~80 중량부, 규사 20~30 중량부, 생석회 1~5 중량부, 실리카흠 1~5 중량부가 혼합되어 기능성 경량자기 발포 시멘트가 제조되는 한편: 상기 기능성 발포 시멘트 60~70 중량부에 물 30~40 중량부가 혼합되어 제조되는 것을 특징으로 한다.In addition, 0.1 to 0.5 parts by weight of a solid powder magnetic foaming agent prepared by stirring and mixing an aluminum fine powder, an acetic acid activated carbon compound, an alpha olefin anion which is a surfactant, and an alkylbenzene anion, 70 to 80 parts by weight of Portland cement, and silica sand 20 Functional light weight self-expanding cement is prepared by mixing ˜30 parts by weight, 1-5 parts by weight of quicklime, and 1-5 parts by weight of silica flaw: while 30-40 parts by weight of water is mixed with 60-70 parts by weight of the functional foam cement. It is characterized by.

이하, 본 발명을 구체적인 실시예에 의거하여 상세히 설명하면 다음과 같다. Hereinafter, the present invention will be described in detail based on specific examples.

본 발명의 고상분말자기발포제는 알루미늄미세분말과 초산계 활성탄소 화합물(목초산)과 계면 활성제인 알파올레핀계음이온과 알킬벤젠계음이온이 교반 혼합되어 제조되는 것을 포함하여 구성된다.The solid-phase powder self-foaming agent of the present invention comprises an aluminum fine powder, an acetic acid-based activated carbon compound (acetic acid), and an alpha olefin-based anion and an alkylbenzene-based anion which are surfactants.

상기 알루미늄미세분말 20~30 중량부, 초산계 활성탄소 화합물 20~30 중량부와 액상인 계면활성제 알파올레핀계음이온 20~30 중량부, 알킬벤젠계음이온 20~30 중량부를 교반 혼합하여 혼합된 화합물을 4~6시간 18~40℃에서 숙성한다. 상기 숙성과정에서 알루미늄미세분말은 초산계 활성탄소 화합물의 알카리 성분과 화학반응에 의해 발열반응을 일으키게 되면서, 물분자를 발산시켜 활성탄소 기능을 가진 고상분말 발포제가 제조되게 된다.20-30 parts by weight of the aluminum fine powder, 20-30 parts by weight of acetic acid-based activated carbon compound and 20-30 parts by weight of a liquid surfactant alphaolefin-based anion, and 20-30 parts by weight of an alkylbenzene-based anion. It is aged at 18-40 ° C. for 4-6 hours. In the aging process, the aluminum fine powder causes an exothermic reaction by an alkali component and a chemical reaction of the acetic acid-based activated carbon compound, thereby releasing water molecules to prepare a solid powder blowing agent having an activated carbon function.

이때, 상기 초산계 활성탄소 화합물은 목초산으로도 일컬어지고 있는데, 상기 목초산은 수량(收量)이 건재(乾材)에서 30% 이상이며, 조목초(粗木醋)에는 목타르가 일부 용해되어 있으나 증류에 의해 분류할 수 있다. 자극적인 냄새가 나는 흑갈색 액체이며, 80% 이상이 물이다. 또한 비중은 1.018~1.030이며, 다량의 아세트산을 함유하고 있고, 이 밖에 메탄올 ·포름산 등 저급 지방산, 아세트산메틸 ·포름알데히드 ·아세트알데히드 ·푸르푸랄 ·아세톤 ·메틸에틸케톤 ·디에틸케톤 ·암모니아 ·메틸아민 ·피리딘 ·톨루엔 ·크실렌 등 수많은 유기화합물이다.At this time, the acetic acid-based activated carbon compound is also referred to as acetic acid, the amount of the acetic acid is more than 30% in dry wood (乾 材 量), and some tar is dissolved in crude wood (粗 木 醋) It can classify by distillation. It is a dark brown liquid with an irritating odor. More than 80% is water. The specific gravity is 1.018 to 1.030 and contains a large amount of acetic acid. In addition, lower fatty acids such as methanol and formic acid, methyl acetate, formaldehyde, acetaldehyde, furfural, acetone, methyl ethyl ketone, diethyl ketone, ammonia and methyl It is a large number of organic compounds such as amine, pyridine, toluene and xylene.

이와 같이 제조된 고상분말 자기발포제는 표 1과 같은 제법으로 이루어지게 되는 것이다. The solid powder self-foaming agent prepared as described above is to be made by the preparation method shown in Table 1.

<표 1>TABLE 1

<고상분말 자기발포제 제법><Solid powder self-foaming agent manufacturing method>

한편, 상기한 고상분말 자기발포제 그 기능을 배가시킬 수 있도록 부가재료를 혼합하고 일정비의 물을 혼합하게 되면, 경량기포콘크리트를 제조할 수 있게 된다.On the other hand, by mixing the additional materials and the mixing of a certain ratio of water so as to double the function of the solid powder self-foaming agent, it is possible to manufacture a lightweight foam concrete.

상기 고상분말자기발포제 0.1~0.5 중량부에 포틀랜드시멘트 70~80 중량부를 혼합하고, 규사 20~30 중량부, 생석회 1~5 중량부, 실리카흠 1~5 중량부를 혼합하게 되면, 기능성 경량자기 발포 시멘트가 제조되며, 여기에 물을 일정량 첨가하게 되면, 경량기포 콘크리트가 제조되게 된다.When the 70 to 80 parts by weight of Portland cement is mixed with 0.1 to 0.5 parts by weight of the solid powder magnetic foaming agent, and 20 to 30 parts by weight of silica sand, 1 to 5 parts by weight of quicklime and 1 to 5 parts by weight of silica blemishes, functional lightweight magnetic foaming Cement is produced, and when a certain amount of water is added thereto, lightweight foamed concrete is produced.

즉, 상기 고상분말기포제와 포트랜드시멘트에 첨가되는 규사, 생석회, 실리카흠은 재료 특성상 시멘트의 내구성 및 내화강도를 증대시키는 역할을 하게 되며, 이같이 제조된 기능성 발포 시멘트 60~70 중량부에 물 30~40 중량부를 혼합하여 슬러리 시키게 되면, 현장에서도 단시간에 경량기포콘크리트가 제조되어 비내력벽 등에 타설됨으로써, 건축물 등이 견고한 내구성을 갖게 된다.That is, the silica sand, quicklime, and silica blemishes added to the solid powder foaming agent and the Portland cement serve to increase the durability and fire resistance of the cement due to the material properties, and water 30 to 60 to 70 parts by weight of the functional foam cement thus prepared. When the slurry is mixed by 40 parts by weight, lightweight foamed concrete is produced in a short time in the field, and is poured into a non-bearing wall or the like, so that a building or the like has solid durability.

이렇게 제조된 경량기포콘크리트의 배합비 중 표 2는 규사의 첨가량에 따른 경량기포콘크리트의 발포전과 발포후의 체적비를 비교한 것이다. Table 2 in the mixing ratio of the lightweight foamed concrete prepared as described above compares the volume ratio of the foamed foamed concrete before and after foaming according to the addition amount of silica sand.

<표 2>TABLE 2

<경량기포콘크리트의 배합비><Mixing ratio of light foam concrete>

위와 같은 실험을 한 결과, 본 발명의 경량기포콘크리트는 KSF 2459에 준하는 수치보다 높게 났으며, 타설 후 1~2일 후 후속공정이 가능함으로 단기간에 공사가 이루질 수 있게 되는 것이다. 또한 배합 2와 배합 3은 규사(세골재)의 첨가로 하기 <표3>의 내용과 같이 압축강도가 높이 나타나는 것을 알 수 있었다.As a result of the experiment as described above, the lightweight foam concrete of the present invention was higher than the value according to KSF 2459, and the construction can be made in a short period of time, as it is possible to follow-up process after 1-2 days after pouring. In addition, it was found that the compounding 2 and compound 3 showed high compressive strength by adding silica sand (fine aggregate) as shown in the following <Table 3>.

표 3은 경량기포콘크리트의 규사 첨가량에 따른 물성을 나타낸 것이다.Table 3 shows the physical properties according to the addition amount of silica sand of lightweight foam concrete.

<표 3>TABLE 3

<경량기포콘크리트의 물성><Physical Properties of Lightweight Aerated Concrete>

상기 표 3에 나타난 바와 같이 규사 첨가량을 증가에 따라 절건비중 및 압축강도 등이 크게 증진되는 것을 알 수 있으며, 이 실험의 배합 1과 배합 2는 KSF 2459에 준하는 절건비중이 0.7 이하로 나타났고 배합 3은 규사의 첨가로 절건비중이 상승되는 것을 알 수 있었다.As shown in Table 3, it can be seen that as the amount of silica sand is increased, the specific gravity and compressive strength are greatly improved.In the experiment 1 and 2 of the experiment, the specific gravity of KSF 2459 was 0.7 or less. 3, the addition of silica sand increased the specific gravity.

또한, 본 발명의 경량기포콘크리트를 품질검사전문기관에서 여러가지 시험방법을 통해 그 강도와 열전도율, 절대건조겉보기비중 및 길이변화율, 흡수율을 시험한 결과를 보이는 것을 확인할 수 있었다.In addition, the lightweight foamed concrete of the present invention was confirmed by the quality inspection institutes through various test methods to test the strength, thermal conductivity, absolute dry apparent specific gravity and length change rate, the absorption rate.

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또한, 도 1은 본 발명의 경량기포콘크리트(10)가 비내력벽체(20)에 타설된 것을 보인 단면도로서, 상기 경량기포콘크리트(10)를 비내력벽체(20)에 타설할 경우, 선발포 방식에서와 같은 타설후의 기포소멸 현상이 없이 콘크리트가 수축 및 함몰되지 않게 된다.In addition, Figure 1 is a cross-sectional view showing that the lightweight foamed concrete 10 of the present invention is placed on the non-bearing wall 20, when the lightweight foamed concrete 10 is poured on the non-bearing wall 20, pre-foaming The concrete does not shrink and swell without foaming after pouring, as in the method.

즉, 공동주택이나 고층건물 등의 비내력 벽체(세대간 칸막이) 시공시 상기 비내력벽체(20)의 거푸집을 시멘트보드(30) 및 석고보드(40)를 사용하여 거푸집 사이로 경량자기발포콘크리트를 시공체적물에 적량(약 60~70%)을 주입시키게 되면, 경량자기발포콘크트가 발포 반응을 일으켜 60~120분 사이에서 체적이 점진적으로 증가되어 적층되게 된다. 이때, 체적이 증가된 경량자기발포콘크리트와 거푸집(시멘트보드, 석고보드)은 일체화 되어 견고한 비내력벽체를 구성하게 되는 것이다.That is, when constructing a non-bearing wall (inter-generational partition) such as a multi-family house or a high-rise building, lightweight self-foaming concrete is formed between the formwork of the non-bearing wall 20 by using a cement board 30 and a plaster board 40. When a suitable amount (about 60-70%) is injected into the construction volume, the light-weight foaming concrete will cause a foaming reaction and gradually increase the volume between 60 to 120 minutes to be laminated. At this time, the light weight self-foaming concrete and the formwork (cement board, gypsum board) is increased to form a solid non-bearing wall.

따라서 본 발명에 따른 고상분말 자기발포제 및 경량기포 콘크리트는 작업공정의 단순화와 함께 균질한 제품의 생산이 가능하며, 일체의 장비 없이도 쉽고 빠르게 경량기포콘크리트를 제조하여 설치할 수 있을 뿐만 아니라, 경량화, 단열화가 가능하면서도 차음 및 내화강도가 보강되며, 적은 비용으로도 쉽고 빠르게 경량기포콘크리트를 제조하여 사용할 수 있어 건축물 제작자에게 매우 큰 만족감을 줄 수 있게 되는 것이다. Therefore, the solid powder self-foaming agent and the lightweight foam concrete according to the present invention can produce a homogeneous product with a simplification of the work process, and can be easily and quickly manufactured and installed lightweight foam concrete without any equipment, lightweight, insulation It is possible to paint, reinforced sound insulation and fireproof strength, and can be used to manufacture lightweight foam concrete easily and quickly at a low cost, which will give a great satisfaction to building manufacturers.

도 1은 본 발명의 경량기포콘크리트가 비내력벽에 타설된 것을 보인 단면도.1 is a cross-sectional view showing that the lightweight foam concrete of the present invention is poured on the non-bearing wall.

<도면 각 주요 부분에 대한 부호의 설명><Explanation of symbols for each major part of drawing>

10: 경량기포콘크리트 20: 비내력벽체 30: 시멘트보드10: lightweight foam concrete 20: non-bearing wall 30: cement board

40: 석고보드40: gypsum board

Claims (2)

현장타설용 경량기포콘크리트에 있어서:In lightweight foam concrete for cast in place: 알루미늄미세분말 20~30 중량부, 초산계 활성탄소 화합물 20~30 중량부, 계면활성제인 알파올레핀계음이온 20~30 중량부, 알킬벤젠계음이온 20~30 중량부의 조성비로 교반 혼합되고, 혼합된 화합물을 4~6시간 18~40℃에서 숙성하여 제조되는 것을 특징으로 하는 고상분말 자기발포제 조성물.20 to 30 parts by weight of aluminum fine powder, 20 to 30 parts by weight of acetic acid-based activated carbon compound, 20 to 30 parts by weight of alpha olefin anion as a surfactant, and 20 to 30 parts by weight of alkyl benzene anion. Solid phase self-foaming agent composition, characterized in that the compound is prepared by aging at 4 ~ 6 hours 18 ~ 40 ℃. 알루미늄미세분말, 초산계 활성탄소 화합물, 계면활성제인 알파올레핀계음이온, 알킬벤젠계음이온을 교반 혼합하여 제조한 고상분말자기발포제 0.1~0.5 중량부, 포틀랜드시멘트 70~80 중량부, 규사 20~30 중량부, 생석회 1~5 중량부, 실리카흠 1~5 중량부가 혼합되어 기능성 경량자기 발포 시멘트가 제조되는 한편: 상기 기능성 발포 시멘트 60~70 중량부에 물 30~40 중량부가 혼합되어 제조되는 것을 특징으로 경량기포 콘크리트.0.1 to 0.5 parts by weight of a solid powder magnetic foaming agent prepared by stirring and mixing an aluminum fine powder, an acetic acid activated carbon compound, an alpha olefin anion which is a surfactant, and an alkylbenzene anion, and 70 to 80 parts by weight of Portland cement, and 20 to 30 silica sand. By weight, 1 to 5 parts by weight of quicklime, 1 to 5 parts by weight of silica blemishes are mixed to produce a functional lightweight magnetic foamed cement: 30 to 40 parts by weight of water is mixed to 60 to 70 parts by weight of the functional foamed cement. Lightweight foam concrete.
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