KR102296598B1 - Lightweight Cement Block - Google Patents

Lightweight Cement Block Download PDF

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KR102296598B1
KR102296598B1 KR1020210016974A KR20210016974A KR102296598B1 KR 102296598 B1 KR102296598 B1 KR 102296598B1 KR 1020210016974 A KR1020210016974 A KR 1020210016974A KR 20210016974 A KR20210016974 A KR 20210016974A KR 102296598 B1 KR102296598 B1 KR 102296598B1
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weight
parts
cement block
lightweight
lightweight cement
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KR1020210016974A
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Korean (ko)
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오경근
오한성
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오경근
오한성
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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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • 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
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/386—Carbon
    • 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
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/42—Glass
    • 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
    • C04B16/0675—Macromolecular compounds fibrous from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B16/0691—Polyamides; Polyaramides
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/02—Alcohols; Phenols; Ethers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/38—Polysaccharides or derivatives thereof
    • 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
    • C04B28/02—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 containing hydraulic cements other than calcium sulfates
    • 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
    • C04B2103/0045—Polymers chosen for their physico-chemical characteristics
    • C04B2103/0051—Water-absorbing polymers, hydrophilic polymers
    • 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
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/67—Biocides
    • C04B2103/69—Fungicides

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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)
  • Inorganic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Nanotechnology (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The present invention relates to a lightweight cement block which does not comprise aggregate. The lightweight cement block is obtained by mixing materials and curing the same, wherein the materials include: 175 to 185 parts by weight of cement; 1.4 to 1.6 parts by weight of a foaming agent; 0.8 to 1.2 parts by weight of reinforced fibers; 75 to 95 parts by weight of water; 1.6 to 1.8 parts by weight of wheat flour; and 1.9 to 2.1 parts by weight of methanol or ethanol. According to the present invention, the lightweight cement block having adequate intensity can be provided.

Description

경량 시멘트 블록{Lightweight Cement Block}Lightweight Cement Block

본 발명은 경량 시멘트 블록에 관한 것으로서, 종래의 경량 시멘트 블록과는 달리 별도의 골재를 사용하지 않고 강화섬유를 혼합하여 경량화와 함께 필요한 강도를 확보할 수 있는 것을 특징으로 한다. The present invention relates to a lightweight cement block, and unlike the conventional lightweight cement block, it is characterized in that it is possible to secure the necessary strength while reducing the weight by mixing reinforcing fibers without using a separate aggregate.

종래부터 많은 연구가들에 의해 경량 시멘트(콘크리트) 블록 및 이의 제조방법 등이 많이 제시되어 왔는데, 종래의 기술과 문제점에 대해 살펴보면 다음과 같다.Conventionally, many researchers have proposed a lightweight cement (concrete) block and a method for manufacturing the same. The conventional techniques and problems are as follows.

경량성, 차음성 등의 목적으로 주로 활용되는 경량 기포 시멘트(콘크리트)는 시멘트를 물과 혼합하는 슬러리화 과정에서 기포군을 섞어서 타설하기 때문에 과다한 시멘트가 사용되어 경제적 낭비와 시멘트의 높은 비중으로 건축물의 중량의 부담과 아울러 양생과정에서 수축이 심하여 크랙 발생. 강도 부실과 경화체의 침전 등의 문제점이 있었다. Light-weight foamed cement (concrete), which is mainly used for the purpose of lightness and sound insulation, is poured by mixing foam groups during the slurrying process of mixing cement with water. In addition to the burden of the weight of the product, cracks occur due to severe shrinkage during the curing process. There were problems such as poor strength and precipitation of the hardened body.

예를 들어, 대한민국 특허출원공개 제86-8958호의 불연성 콤프렉스 포옴 경량 콘크리트 제조방법에서는 단지 필라(filler)로써 플라이에쉬나 카바이트를 사용했기 때문에 기존의 크랙이나 강도 부실의 문제를 전혀 개선하지 못하고 단지 시멘트의 일부를 골재로 대체하는 역할 밖에 제시하지 못하였고, 또한 대한민국 특허출원공개 제92-2287호의 경량 단열 콘크리트 제조방법에서는 시멘트와 함께 스티로폴 입자, 화산재, 퍼라이트, 팝스톤, 고로슬래그, 질석 등의 경량골재를 사용하는 시공법을 제시하였으나 이러한 물질들은 시멘트에 골재를 투입하여 배합을 조정하는 역할 뿐이어서, 앞서 기술한 대한민국 특허출원공개 제86-8958호의 불연성 콘크리트 포옴, 경량 콘크리트 제조방법과 거의 차이가 없다고 할 수 있다. For example, in the non-combustible complex foam lightweight concrete manufacturing method of Korean Patent Application Laid-Open No. 86-8958, because fly ash or carbite is used only as a filler, the existing problems of cracks or poor strength cannot be improved at all, and only In addition, in the manufacturing method of lightweight insulating concrete of Korean Patent Application Laid-Open No. 92-2287, the role of replacing a part of cement with aggregate was only suggested. Although a construction method using lightweight aggregates has been suggested, these materials only serve to adjust the mixing by injecting aggregate into the cement. it can be said that there is no

이는 시공시 블리딩(bleeding)과 입도분리 시공시간 경과에 따라 시공기계 내부에 경화 등의 작동제한 등과 같은 문제를 발생시키면서 경량 기포 콘크리트의 근본문제를 해결하지 못하였다.This did not solve the fundamental problem of lightweight aerated concrete, causing problems such as bleeding during construction and limited operation such as hardening inside the construction machine as the construction time elapsed.

그 외에, 문제점을 해결하기 위한 방안으로 제시된 기술이 경량골재나 폐플라스틱을 골재로 사용하여 단열층을 구성하는 공법에 관한 것으로 대한민국 특허출원공개 제94-2202호 기포 콘크리트 제조방법과 대한민국 특허공개 제95-3216호 경량 단열 콘크리트 제조방법이 제시되었는데, 이러한 방법에 따르면 폴리우레탄, EVA 스티로폼 등의 경량 골재를 적용하여 단열성을 높이고자 하였으나, 이들의 물질은 초경량으로써 시멘트 슬러리와 혼합하여 타설할 시 초경량 골재인 혼화제 등이 부유하는 현상이 발생되어 유기물과 무기물의 층분리로 인하여 분리층간의 열팽창계수, 건조 및 수축 차이가 발생하여 하자 위험성이 유발된다. 특히 심각한 경우 시공후 박리현상을 일으켜 재시공해야 하는 경우도 발생된다. In addition, the technology suggested as a solution to the problem relates to a method of constructing an insulating layer using lightweight aggregate or waste plastic as an aggregate. - No. 3216, a method for manufacturing lightweight insulating concrete was proposed. According to this method, lightweight aggregates such as polyurethane and EVA styrofoam were applied to increase thermal insulation properties. The phenomenon of floating phosphorus admixture occurs, and the thermal expansion coefficient, drying and shrinkage difference between the separated layers occurs due to layer separation of organic and inorganic materials, thereby causing a risk of defects. In particularly serious cases, peeling occurs after construction and requires re-construction.

이런 단점을 보완하기 위해 대한민국 특허공개 2000-14685호 경화성 및 수축 안정성이 강화된 단열 몰탈 조성물에 기포군들을 혼화제로 사용, 슬러리를 만들어 단열층 및 축열층의 시공용 몰탈 조성물에 관한 시공법이 제시되었으나, 이 역시 시멘트의 사용량이 너무 많아 초경량화를 이루지 못할 뿐만 아니라 단열 및 축열효과는 얻을 수 있으나 방음 효과는 극히 미미하였다.In order to compensate for this disadvantage, Korean Patent Laid-Open No. 2000-14685 uses bubble groups as an admixture in the heat insulating mortar composition with enhanced curability and shrinkage stability to make a slurry, and a construction method for a mortar composition for the construction of the heat insulating layer and the heat storage layer has been suggested, In this case too, the amount of cement used is too large, so it is not possible to achieve ultra-light weight, and heat insulation and heat storage effects can be obtained, but the sound insulation effect is very insignificant.

[선행기술문헌][Prior art literature]

공개특허 제10-1986-0008958호Patent Publication No. 10-1986-0008958

공개특허 제10-1994-0002202호Patent Publication No. 10-1994-0002202

공개특허 제10-1995-0003216호Patent Publication No. 10-1995-0003216

공개특허 제10-2000-0014685호Patent Publication No. 10-2000-0014685

상기한 문제점을 해결하기 위하여 창작된 본 발명은 다양한 건축물의 벽체로 사용되면서 경량성 및 경제성을 구현함과 동시에 적절한 강도를 확보할 수 있는 새로운 개념의 골재가 포함되지 않는 경량 시멘트 블록을 제공함을 그 목적으로 한다. The present invention, created to solve the above problems, is to provide a lightweight cement block that does not contain aggregates of a new concept that can be used as a wall of various buildings while realizing lightness and economy, and securing appropriate strength at the same time. The purpose.

상기한 목적을 달성하기 위하여 창작된 본 발명은 골재를 포함하지 않는 경량 시멘트 블록에 관한 것으로서, 시멘트 175 내지 185 중량부; 기포제 1.4 내지 1.6 중량부; 강화섬유 0.8 내지 1.2 중량부; 물 75 내지 95 중량부; 밀가루 1.6 내지 1.8 중량부; 및, 메탄올 또는 에탄올 1.9 내지 2.1 중량부;의 비율로 혼합되어 양생되는 것을 특징으로 한다.The present invention, created to achieve the above object, relates to a lightweight cement block that does not contain aggregate, comprising: 175 to 185 parts by weight of cement; 1.4 to 1.6 parts by weight of a foaming agent; 0.8 to 1.2 parts by weight of reinforcing fibers; 75 to 95 parts by weight of water; Wheat flour 1.6 to 1.8 parts by weight; and, 1.9 to 2.1 parts by weight of methanol or ethanol; characterized in that it is mixed and cured.

본 발명의 구성에 따른 기술적 효과는 다음과 같다.Technical effects according to the configuration of the present invention are as follows.

첫째, 경량골재가 사용되지 않고 강화섬유를 통하여 강도를 확보할 수 있는 경량 시메트 블록을 제공하여 다양한 건축물의 벽체로 사용되면서 경량성과 경제성을 구현함과 동시에 양생 후 가공성을 향상시킬 수 있다.First, by providing a lightweight cimet block that can secure strength through reinforcing fibers without using lightweight aggregate, it can be used as a wall for various buildings, realizing lightness and economy, and improving workability after curing.

둘째, 투입되는 재료를 단순화하여 재고 확보 및 관리 효율을 획기적으로 증대시킬 수 있다.Second, it is possible to dramatically increase inventory security and management efficiency by simplifying input materials.

셋째, 외기 온도에 따라 스팀 가열 과정을 선택적으로 적용하여 보다 효율적인 생산(제조)가 가능하다.Third, more efficient production (manufacturing) is possible by selectively applying the steam heating process according to the outside temperature.

넷째, 밀가루가 사용될 경우 물을 추가 투입하여 조성물 사이의 혼합을 보다 쉽게할 수 있고, 밀가루가 수분을 흡수하게 되어 물의 추가 투입에도 불구하고 양생 후 강도 저하를 방지할 수 있고, 시멘트 독성을 중화(완화)시키는 효과를 도모할 수 있다. 아울러, 밀가루가 사용될 경우 알콜(에탄올 또는 메탄올)을 추가하여 살균 및 소독을 통하여 밀가루의 투입에 따른 위생상의 문제점을 해결할 수 있다.Fourth, when flour is used, additional water is added to make mixing between the compositions easier, and the flour absorbs moisture to prevent a decrease in strength after curing despite the additional input of water, and neutralizes cement toxicity ( mitigation) can be achieved. In addition, when wheat flour is used, alcohol (ethanol or methanol) can be added to solve sanitary problems due to the input of wheat flour through sterilization and disinfection.

이하에서는 본 발명의 구체적 실시예를 보다 자세히 설명한다.Hereinafter, specific embodiments of the present invention will be described in more detail.

본 발명은 골재를 포함하지 않는 경량 시멘트 블록에 관한 것으로서, 시멘트, 기포제, 강화섬유, 및 물을 필수 구성요소로 한다.The present invention relates to a lightweight cement block containing no aggregate, wherein cement, a foaming agent, reinforcing fiber, and water are essential components.

본 발명은 시멘트 175 내지 185 중량부; 기포제 1.4 내지 1.6 중량부; 강화섬유 0.8 내지 1.2 중량부; 및, 물 75 내지 95 중량부;의 비율로 혼합되어 양생된다. The present invention is cement 175 to 185 parts by weight; 1.4 to 1.6 parts by weight of a foaming agent; 0.8 to 1.2 parts by weight of reinforcing fibers; And, 75 to 95 parts by weight of water; is cured by mixing in a ratio of.

시멘트는 일반적으로 점토, 철광석, 석회석, 규석 등의 원료를 제조후 1200~1400℃의 온도에서 소성하고 분쇄하는 공정에 의해 제조되는 것을 말하는데, 1종 보통 포틀랜드 시멘트(Normal portland cement), 2종 중용열 포틀랜드 시멘트(Moderate-heat pc), 3종 조강 포틀랜드 시멘트(High-early-strength pc), 4종 저열 포틀랜드 시멘트(Lowheat pc), 5종 내황산염 포틀랜드 시멘트(Sulphate-resisting pc) 등과 같이 현재 상용화되어 있는 다양한 종류의 시멘트 가운데 적절한 시멘트가 선택될 수 있으며, 건축 및 토목분야에 널리 이용되고, 경제성이 있는 1종 보통 포틀랜드 시멘트를 사용하는 것이 바람직할 수도 있다.Cement is generally manufactured by manufacturing raw materials such as clay, iron ore, limestone, silica stone, etc., and then calcining and pulverizing them at a temperature of 1200~1400℃. Type 1 Normal portland cement, type 2 medium Currently commercialized, such as Moderate-heat pc, Class 3 crude-strength portland cement (High-early-strength pc), Class 4 low heat Portland cement (Lowheat pc), Class 5 Sulfate-resisting pc, etc. A suitable cement may be selected from among the various types of cement available, and it may be preferable to use a type 1 ordinary Portland cement that is widely used in construction and civil engineering fields and is economical.

기포제는 시멘트 경화체 내에 다량의 공극을 발생시키기 위한 것으로서 현재 상용화되어 있는 다양한 동물성 기포제 또는 식물성 기포제 가운데 적절한 제품(성분)이 선택될 수 있다.The foaming agent is for generating a large amount of voids in the cement hardened body, and an appropriate product (ingredient) may be selected from among various animal foaming agents or vegetable foaming agents currently commercially available.

강화섬유는 기포제에 의하여 경량화된 콘크리트 블록의 강도를 보강하기 위하여 첨가되는데, 탄소섬유, 아라미드섬유 또는 유리섬유를 적절한 규격(0.2cm 내지 5지 1.2cm 정도)으로 절단하여 첨가하면 된다. 강화섬유의 직경도 특별한 제한은 없으며, 현재 상용화된 제품을 자유롭게 선택할 수 있다.Reinforcing fibers are added to reinforce the strength of the concrete block lightened by the foaming agent, and carbon fibers, aramid fibers, or glass fibers are cut into appropriate sizes (0.2 cm to 5 to 1.2 cm) and added. There is no particular limitation on the diameter of the reinforcing fiber, and currently commercialized products can be freely selected.

조강제는 거푸집의 조기 탈형에 의한 거푸집 사용 회전율을 높이거나 한냉시 콘크리트의 응결, 경화불량 방지와 양생 기간의 단축 등을 목적으로 사용되는 혼화제를 말하는데, 본 발명의 구체적 실시예에서는 조강제가 1.9 내지 2.1중량부의 비율로 첨가될 수 있다.Crude steel refers to an admixture used for the purpose of increasing the rotation rate of use of the form due to early demolding of the form, coagulation of concrete during cold cooling, prevention of curing failure, and shortening of the curing period. It may be added in a proportion of 2.1 parts by weight.

본 발명에서 조강제는 이미 상용화되어 있는 황산알루미늄, 염화알루미늄, 질산알루미늄, 초산알루미늄, 중탄산나트륨, 중탄산칼륨, 중탄산암모늄, 탄산나트륨, 탄산칼륨, 탄산암모늄, 탄산칼슘, 규산염, 시판용 실리카 졸(silica sol; colloidal silica), 화학적으로 불안정한 실리카 졸, 글리옥살, 또는 에틸렌글리콜 디아세테이트 중에서 선택될 수 있다.In the present invention, the crude agent is already commercialized aluminum sulfate, aluminum chloride, aluminum nitrate, aluminum acetate, sodium bicarbonate, potassium bicarbonate, ammonium bicarbonate, sodium carbonate, potassium carbonate, ammonium carbonate, calcium carbonate, silicate, commercially available silica sol (silica sol) colloidal silica), chemically unstable silica sol, glyoxal, or ethylene glycol diacetate.

본 발명의 조성물에는 밀가루와 알콜(메탄올 또는 에탄올)이 첨가될 수 있는데, 본 발명의 구체적 실시예에서는 밀가루의 경우 1.6 내지 1.8 중량부, 메탄올이나 에탄올의 경우 1.9 내지 2.1 중량부의 비율로 첨가된다.Flour and alcohol (methanol or ethanol) may be added to the composition of the present invention. In a specific embodiment of the present invention, wheat flour is added in an amount of 1.6 to 1.8 parts by weight, and methanol or ethanol is added in a ratio of 1.9 to 2.1 parts by weight.

밀가루가 사용될 경우 물을 추가 투입하여 조성물 사이의 혼합을 보다 쉽게할 수 있고, 밀가루가 수분을 흡수하게 되어 물의 추가 투입에도 불구하고 양생 후 강도 저하를 방지할 수 있고, 시멘트 독성을 중화(완화)시키는 효과를 도모할 수 있다. 아울러, 밀가루가 사용될 경우 알콜(에탄올 또는 메탄올)을 추가하여 살균 및 소독을 통하여 밀가루의 투입에 따른 위생상의 문제점(부폐에 따른 곰팡이 발생과 같은 문제점)을 해결할 수 있다.When wheat flour is used, additional water is added to make mixing between the compositions easier, and the flour absorbs moisture to prevent a decrease in strength after curing despite the additional addition of water, and neutralizes (relieves) cement toxicity. effect can be achieved. In addition, when wheat flour is used, it is possible to solve sanitary problems (problems such as mold generation due to spoilage) due to the input of wheat flour through sterilization and disinfection by adding alcohol (ethanol or methanol).

본 발명의 구체적 실시예에 따른 경량 시멘트 블록의 생산 과정은 다음과 같다.The production process of the lightweight cement block according to a specific embodiment of the present invention is as follows.

(1) 제1단계(1) Step 1

회전하는 다수의 교반날개가 구비된 교반기에 물, 시멘트 및 강화섬유를 미리 설정된 비율로 서서히 투입하면서 혼합하여 제1혼합물을 생성하는 과정이다.It is a process of generating a first mixture by slowly adding water, cement, and reinforcing fibers at a preset ratio to a stirrer equipped with a plurality of rotating agitating blades and mixing them.

제1혼합물의 교반은 60 내지 120 RPM으로 교반날개를 회전하면서 물 500리터 기준 2분 내지 4분 정도 진행하는데, 교반기의 용량(혼합 탱크의 용량)이나 물의 량을 고려하여 교반 시간을 적절히 조절할 수 있다.Agitation of the first mixture is carried out for about 2 to 4 minutes based on 500 liters of water while rotating the stirring blades at 60 to 120 RPM. have.

밀가루와 알콜(메탄올 또는 에탄올)을 첨가할 경우 제1단계에서 함께 혼합한다.If flour and alcohol (methanol or ethanol) are added, mix together in step 1.

(2) 제2단계(2) Step 2

제1혼합물이 생성된 교반기에 기포제를 발포하여 미리 설정된 비율로 투입하고 혼합하여 제2혼합물을 생성하는 과정이다.It is a process of foaming a foaming agent in the stirrer in which the first mixture is created, putting it in a preset ratio, and mixing it to produce a second mixture.

제2혼합물의 교반은 60 내지 120 RPM으로 교반날개를 회전하면서 2분 내지 4분 정도 진행하는데, 교반기의 용량(혼합 탱크의 용량) 등을 고려하여 교반 시간을 적절히 조절할 수 있다.Agitation of the second mixture is carried out for about 2 to 4 minutes while rotating the stirring blades at 60 to 120 RPM, and the stirring time can be appropriately adjusted in consideration of the capacity of the stirrer (capacity of the mixing tank).

조강제가 첨가될 경우 제2단계에서 함께 혼합한다.If a crude agent is added, it is mixed together in the second step.

(3) 제3단계(3) Step 3

제2혼합물을 경량 콘크리트 블록을 제조하는 형틀에 투입하는 과정이다.It is a process of putting the second mixture into a mold for manufacturing lightweight concrete blocks.

형틀은 미리 설계된 형상에 맞게 설계되고 양생 후 블록을 쉽게 탈거시킬 수 있는 구조로 제작됨이 바람직하다.It is preferable that the formwork is designed to fit the pre-designed shape and manufactured in a structure that allows the block to be easily removed after curing.

(4) 제4단계(4) Step 4

형틀에서 경량 콘크리트 블록으로 양생시키는 과정이다.It is the process of curing into lightweight concrete blocks in a mold.

기온이 20℃ 이상인 경우 외기에서 5시간 내지 7시간 자연 양생될 수 있고, 기온이 20℃ 미만인 경우 스팀을 이용하여 1시간 내지 2시간 가열한 후 외기에서 3시간 내지 5시간 자연 양생하는 과정으로 진행될 수도 있다.When the temperature is above 20℃, it can be cured naturally for 5 to 7 hours in outdoor air, and when the temperature is less than 20℃, it is heated for 1 to 2 hours using steam and then naturally cured in outdoor air for 3 to 5 hours. may be

기온이 10℃ 미만으로 내려 갈 경우 스팀에 의한 가열 시간을 2시간 내지 3시간 연장할 수도 있다. When the temperature drops below 10°C, the heating time by steam may be extended for 2 to 3 hours.

양생시 주변 습도는 40% 내지 90% 범위를 유지하면 된다.During curing, the ambient humidity should be maintained in the range of 40% to 90%.

상기한 바와 같이 본 발명의 구체적 실시예를 첨부도면을 참조하여 설명하였으나 본 발명의 보호범위가 반드시 이러한 실시예에만 한정되는 것은 아니며, 본 발명의 기술적 요지를 변경하지 않는 범위 내에서 다양한 설계변경, 공지기술의 부가나 삭제, 단순한 수치한정 등의 경우에도 본 발명의 보호범위에 속함을 분명히 한다.As described above, specific embodiments of the present invention have been described with reference to the accompanying drawings, but the protection scope of the present invention is not necessarily limited to these embodiments, and various design changes within the scope that do not change the technical gist of the present invention, It is clear that addition or deletion of known technology, simple numerical limitation, etc. fall within the protection scope of the present invention.

Claims (6)

골재를 포함하지 않는 경량 시멘트 블록에 관한 것으로서,
시멘트 175 내지 185 중량부;
기포제 1.4 내지 1.6 중량부;
강화섬유 0.8 내지 1.2 중량부;
물 75 내지 95 중량부;
밀가루 1.6 내지 1.8 중량부; 및,
메탄올 또는 에탄올 1.9 내지 2.1 중량부;
의 비율로 혼합되어 양생되는 것을 특징으로 하는 경량 시멘트 블록.It relates to a lightweight cement block containing no aggregate, comprising:
175 to 185 parts by weight of cement;
1.4 to 1.6 parts by weight of a foaming agent;
0.8 to 1.2 parts by weight of reinforcing fibers;
75 to 95 parts by weight of water;
Wheat flour 1.6 to 1.8 parts by weight; and,
1.9 to 2.1 parts by weight of methanol or ethanol;
Light cement block, characterized in that it is mixed and cured in a ratio of. 제1항에서,
조강제 1.9 내지 2.1중량부;
가 추가되는 것을 특징으로 하는 경량 시멘트 블록.In claim 1,
1.9 to 2.1 parts by weight of a crude agent;
Lightweight cement block characterized in that it is added. 제1항 또는 제2항에서,
상기 기포제는,
동물성 기포제 또는 식물성 기포제 가운데 선택되는 것을 특징으로 하는 경량 시멘트 블록.In claim 1 or 2,
The foaming agent,
A lightweight cement block, characterized in that it is selected from an animal foaming agent or a vegetable foaming agent. 제1항 또는 제2항에서,
상기 강화섬유는,
탄소섬유, 아라미드섬유 또는 유리섬유인 것을 특징으로 하는 경량 시멘트 블록.In claim 1 or 2,
The reinforcing fiber is
A lightweight cement block, characterized in that it is carbon fiber, aramid fiber or glass fiber. 제2항에서,
상기 조강제는,
황산알루미늄, 염화알루미늄, 질산알루미늄, 초산알루미늄, 중탄산나트륨, 중탄산칼륨, 중탄산암모늄, 탄산나트륨, 탄산칼륨, 탄산암모늄, 탄산칼슘, 규산염, 시판용 실리카 졸(silica sol; colloidal silica), 화학적으로 불안정한 실리카 졸, 글리옥살, 또는 에틸렌글리콜 디아세테이트 중에서 선택되는 것을 특징으로 하는 경량 시멘트 블록.In claim 2,
The co-agent is
Aluminum sulfate, aluminum chloride, aluminum nitrate, aluminum acetate, sodium bicarbonate, potassium bicarbonate, ammonium bicarbonate, sodium carbonate, potassium carbonate, ammonium carbonate, calcium carbonate, silicate, commercially available silica sol (colloidal silica), chemically unstable silica sol A lightweight cement block, characterized in that it is selected from , glyoxal, or ethylene glycol diacetate. 삭제delete
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050034072A (en) * 2003-10-08 2005-04-14 조상범 Light weight bubble concrete wall panel construction and the manufacture method
JP2009074345A (en) * 2006-12-04 2009-04-09 Kanaflex Corporation Lightweight cement panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050034072A (en) * 2003-10-08 2005-04-14 조상범 Light weight bubble concrete wall panel construction and the manufacture method
JP2009074345A (en) * 2006-12-04 2009-04-09 Kanaflex Corporation Lightweight cement panel

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