KR0120101B1 - Process for the preparation of light weight pore concrete - Google Patents

Process for the preparation of light weight pore concrete

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Publication number
KR0120101B1
KR0120101B1 KR1019940018205A KR19940018205A KR0120101B1 KR 0120101 B1 KR0120101 B1 KR 0120101B1 KR 1019940018205 A KR1019940018205 A KR 1019940018205A KR 19940018205 A KR19940018205 A KR 19940018205A KR 0120101 B1 KR0120101 B1 KR 0120101B1
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South Korea
Prior art keywords
waste
weight
cement
foamed concrete
waste paper
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KR1019940018205A
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Korean (ko)
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KR960004266A (en
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김정규
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김정규
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Publication of KR0120101B1 publication Critical patent/KR0120101B1/en

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Classifications

    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/12—Waste materials; Refuse from quarries, mining or the like
    • C04B18/125—Slate residues, e.g. colliery shale or oil shale or oil shale ash
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
    • C04B18/241—Paper, e.g. waste paper; Paper pulp
    • C04B18/243—Waste from paper processing or recycling paper, e.g. de-inking sludge
    • 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
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • C04B24/14—Peptides; Proteins; 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40—Porous or lightweight materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60—Flooring materials
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

The lightweight cellular concrete is manufactured by using waste building materials and waste paper. The waste roofing slate and waste ceiling materials are granulated or crushed up, mixed with the waste paper slurries which are crushed up as the moisture-containing state and calcined as powder state, water and cement. The mixture is foamed with the animal protein foaming agent to give lightweight cellular concrete.

Description

경량 기포 콘크리트의 제조방법Manufacturing Method of Lightweight Foamed Concrete

본 발명은 폐건자재, 폐제지류 등의 경량 골재를 이용한 경량 기포 콘크리트의 제조방법에 관한 것으로, 보다 구체적으로는, 입자화되거나 분쇄된 폐건자재 및 폐지슬러리를 소성처리한 분말상의 폐지슬러리 회분을 물과 시멘트로 혼합하고, 여기에 동물성 단백질 기포제 희석액의 발포체를 주입하고 혼합함을 특징으로 하는 경량 기포 콘크리트를 제조하는 방법에 관한 것이다.The present invention relates to a method for manufacturing lightweight foamed concrete using lightweight aggregates such as waste building materials and waste paper. And a cement, and a foam of the diluent of animal protein foam is injected into and mixed with the cement.

최근에는 자재의 고갈로 품질의 재현성이 떨어지고 있고, 자재 공급의 미흡으로 작업의 지속성, 경제성, 균일성이 결여되어 있어 이를 해결하고 환경보호의 측면에서 자원의 재활용이 극대화 되고 있다.Recently, the reproducibility of quality is deteriorated due to the depletion of materials, and there is a lack of continuity, economic feasibility and uniformity due to the lack of material supply, which solves this problem and maximizes the recycling of resources in terms of environmental protection.

종래의 경량 기포 콘크리트 제조방법이 국내 특허공고 제67-149호, 제73-56호, 제73-57호, 제76-466호, 제80-1056호 등에 기재되어 있고, 이들 방법에서는 경량 골재를 사용함을 특징으로 하고 있으나, 비중이 0.6 이상인 경량 콘크리트가 제조되며, 고층 아파트 작업시에 압송이 불가능하여 연속작업이 어려운 결점이 있다.Conventional methods for manufacturing lightweight foamed concrete are described in Korean Patent Publication Nos. 67-149, 73-56, 73-57, 76-466, 80-1056, and the like. It is characterized in that the use of, but the concrete weight is produced with a specific gravity of 0.6 or more, there is a defect that is difficult to continuous work because it is impossible to pump in high-rise apartment work.

특히, 국내 특허공고 제73-56호의 경우, 제주산 송이(亦色火山土)를 경량 골재로 하여 경량 콘크리트 성형물을 제조하고 있지만, 비중이 커져서 고층 아파트 작업시에 압송이 어렵고, 콘크리트 자체의 비중이 높아 단열성과 방음성이 양호하지 못한 문제점이 있었다. 또한, 발포 스티로폴, 발포고무류는 시멘트와의 소재 이질성으로 인하여 작업상에서 혼합이 불균일해지고, 시멘트 슬러리와의 혼합후 소재와의 비중 차이로 인하여 소재의 분리현상이 발생할 뿐만 아니라, 단열성 및 압축강도가 감소된다.(참조 : 신주택 기술개발 저가 고효율 난방 시스템 개발 연구, 1991년, 과학 기술처 발행).In particular, in the case of Korean Patent Publication No. 73-56, lightweight concrete moldings are manufactured using Jeju aggregates as light weight aggregates.However, due to the increased specific gravity, it is difficult to transport them in high-rise apartments, and the specific gravity of concrete itself. There was a problem that the high heat insulation and sound insulation is not high. In addition, the foamed styropol and the foamed rubber are not uniformly mixed in the work due to the heterogeneity of the material with the cement, the separation of the material due to the difference in specific gravity with the material after mixing with the cement slurry, as well as the insulation and compressive strength is reduced. (Reference: New housing technology development Research on the development of low-cost, high-efficiency heating system, 1991, issued by the Ministry of Science and Technology).

뿐만 아니라, 상기 경량 콘크리트는 소재의 이질성으로 인하여 친수성이 강한 시멘트와 소수성(친유성)이 강한 유기물의 분해물(스티로폴, 발포고무, 폐타이어)이 강한 기계적 혼합방법에 의해 혼합하여야 하기 때문에 비중이 큰 영향을 주는 기포제의 발포력을 저하시켜 초경량 기포 콘크리트(비중:0.3-0.5)를 제조하기에는 부적당하다.In addition, the light weight concrete has a high specific gravity because the hydrophilic cement and hydrolyzate having high hydrophobicity (lipophilic) must be mixed by a strong mechanical mixing method due to heterogeneity of the material. It is unsuitable for producing ultralight foam concrete (specific gravity: 0.3-0.5) by lowering the foaming force of the foaming agent that affects it.

그리고, 제품의 혼합이 불균일하여 압축강도가 떨어지고, 접착력도 떨어져 온돌바닥으로 적용시 들뜸현상이 발생된다.In addition, the product is unevenly mixed, the compressive strength is lowered, the adhesive strength is also lowered when applied to the ondol floor.

일반적으로 기포 콘크리트의 비중과 압축강도는 비례하고, 비중이 높아지면 압축강도가 높아져 온돌바닥용으로서의 열전도율이 저하되므로 온돌바닥용으로는 비경제적인 경량 골재가 생성되는 결점이 있었다.In general, the specific gravity and the compressive strength of the foam concrete is proportional, and the higher the specific gravity, the higher the compressive strength and the lower the thermal conductivity for the ondol floor.

따라서, 종래의 경량 콘크리트 제조방법에 의해 제조된 단순한 경량 콘크리트(비중:0.7-1.2)는 온돌바닥 단열용 콘크리트로서 요구되는 경량화(비중:0.35-0.6) 특성을 만족시키지 못하고, 열전도율이 낮아 온돌바닥용 단열재로 미흡하고, 현장 타설용으로서의 비생산성, 비경제성의 문제점이 있어 이를 개선하기 위하여 본 발명에서는 폐건자재 및 폐제지류 등의 경량 골재를 사용한 경량 기포 콘크리트를 제조함으로써, 우수한 열전도율(0.07-0.09kcal/m.h.℃), 압축강도(6-20kg/㎠) 및 낮은 비중(0.3-0.6)을 갖는 온돌바닥용 단열 경량 기포 콘크리트를 제공함에 목적이 있다.Therefore, the simple lightweight concrete (specific gravity: 0.7-1.2) produced by the conventional lightweight concrete manufacturing method does not satisfy the weight reduction (specific gravity: 0.35-0.6) characteristics required as the concrete for thermal insulation of the ondol floor, and the thermal conductivity is low and the ondol floor is low. Insufficient as a heat insulating material for the site, there is a problem of non-productivity and economical efficiency for site casting, in order to improve the problem, in the present invention, by producing lightweight foam concrete using lightweight aggregate such as waste building materials and waste paper, excellent thermal conductivity (0.07-0.09 kcal / mh ° C.), compressive strength (6-20 kg / cm 2) and low specific gravity (0.3-0.6) to provide an insulating lightweight foamed concrete for ondol floors.

본 발명은 공지의 방법보다 제조되는 경량 기포 콘크리트가 여러가지 측면에서 우수한 방법으로, 제지 공정의 폐지 슬러리를 1,2차 처리후 탈수 건조한 폐지슬러리를 800℃에서 소성시킨 폐지슬러리 회분, 폐건자재(슬레이트, 방음 천장재, 석고보드류)의 분쇄물, 시멘트와의 혼합성, 접착성을 증진시키기 위한 분산제(나프탈렌 축합물, 니크닌계, 카르복실계 화합물), 고층 건물에의 압송력을 증진시키는 윤활제, 셀프 레벨링제(self levelling agent)를 시멘트 및 일정비의 물과 혼합한 후, 동물성 단백질 기포제 희석액을 공기주입식 애자 발포기를 통화시켜 얻은 거품과 혼합함을 특징으로 하는 방법이다.The present invention is a lightweight foamed concrete produced by the known method is excellent in many aspects, waste paper slurry ash, waste building material (slate) calcined waste paper slurry dehydrated after drying the waste paper slurry of the papermaking process 1 and 2 at 800 ℃ , Grinding materials of soundproof ceiling materials, gypsum boards), dispersing agents (naphthalene condensates, ninin-based, carboxyl-based compounds) to improve the mixing and adhesion with cement, lubricants to increase the pressure to high-rise buildings, self The method is characterized by mixing a self leveling agent with cement and a certain ratio of water, and then diluting the animal protein foaming agent with the foam obtained by passing through an air injector foamer.

본 발명의 경량 기포 콘크리트 제조방법은 다음과 같다.Lightweight foamed concrete manufacturing method of the present invention is as follows.

시멘트 중량에 대해 50-300매쉬(Mash)의 폐슬레이트 분쇄물 5-40중량%, 50-300매쉬의 폐천장재 분쇄물 5-15중량%, 수분율 20% 이내의 폐지 슬러리 10-40중량%, 폐지슬러리를 800℃의 회전로(rotary kiln)에서 소성시킨 폐지슬러리 회분(ash) 또는 플라이 애쉬(fly ash) 5-30중량%를 물 180-240L에 혼합한 후 시멘트 300kg과 혼합하고, 여기에 2-7%로 희석시킨 동물성 단백질 기포제 희석액을 공기주입(에어 컴프레셔 압력 5-9 기압)에 의해 발포기를 통과시켜 하얀 크림상태의 거품군을 발생시키고 이 거품군을 모노 펌프, 호스 펌프를 통해 순간 혼합하므로서 제조되고, 이를 압송하고 타설하여 여러분야에 적용시킨다.5-40% by weight of 50-300 mesh waste slate ground, 5-15% by 50-300 mesh waste ceiling grinding, 10-40% by weight waste paper slurry within 20% moisture content, 5-30% by weight of waste paper slurry ash or fly ash fired in a rotary kiln at 800 ° C. was mixed with 180-240 L of water and then mixed with 300 kg of cement. A diluent of animal protein foaming agent diluted to 2-7% is passed through the foamer by air injection (air compressor pressure 5-9 atm) to generate a white creamy foam group, and the foam group is instantaneously passed through a mono pump or a hose pump. Manufactured by mixing, it is pressed, poured and applied to you.

이때 시멘트에 대한 물의 비는 0.55-0.7 범위가 가장 적합하다.The ratio of water to cement is most preferably in the range of 0.55-0.7.

상기 시멘트에 대한 물의 비가 0.55 미만일 경우에 시멘트와 경량 골재와의 혼합이 균일하지 못하여 발포기를 빠져나온 동물성 단백질 기포제의 크림상태의 거품군과 혼합시 거품을 파괴시켜 적정한 비중(0.3-0.6)이 유지되는 경량 성형체가 제조되기 어려우며, 또한 모노 펌프, 호스 펌프태에서 혼합시 펌프의 마모를 일으켜 고층 아파트에로의 압송을 원활히 할 수 없다.When the ratio of water to the cement is less than 0.55, the mixing of cement and the light aggregate is not uniform, and when mixing with the creamy foam group of the animal protein foam agent exiting the foaming machine, the foam breaks and maintains the proper specific gravity (0.3-0.6). It is difficult to produce a lightweight molded body, and also cause abrasion of the pump when mixed in the mono pump, hose pump state, it is not possible to smoothly pump to the high-rise apartment.

또한 시멘트에 대한 물의 비가 0.7을 초과하는 경우 경량 기포 모르타르(mortar)의 점도가 낮아 발포기를 통과한 하얀 크림상태의 거품군과 혼합후 압송시 마찰에 의한 폼(foam)의 안정성이 떨어져 동물성 단백질 기포제의 소모가 많아지며, 슬러브 바닥에 타설할 경우 모르타르의 점도가 낮아 기포제의 안정성이 떨어져 경량 기포 콘크리트의 수평 표면이 침하되어 온돌바닥의 수평이 맞지 않고, 균일한 기포군의 분포가 어려워 단열재로서의 열전도율(0.07-0.09kcal/m.h.℃)은 얻을 수 없게 되어 온돌용 단열 기포 콘크리트로서는 적합하지 않다.In addition, when the ratio of water to cement exceeds 0.7, the viscosity of the light-foamed mortar is low, so the stability of the foam due to friction during feeding and mixing with the white creamy foam group passed through the foaming machine is reduced. When it is poured on the floor of the slab, the mortar viscosity is low, and the stability of the foaming agent is low, so that the horizontal surface of the lightweight foam concrete is settled, the horizontal surface of the floor is not leveled, and the uniform distribution of bubbles is difficult. (0.07-0.09 kcal / mh ° C.) cannot be obtained and is not suitable for thermal insulation foam concrete for ondol.

상기에서 시멘트 중량에 대한 폐건자재 첨가량은 5-5중량% 범위가 적합한데, 만일 폐건자재 첨가량이 시멘트 중량에 대해 55중량%를 초과하는 경우 경량 기포 콘크리트의 압축강도(6kg/cm2 이상 기준)가 약하여 구조물 또는 바닥재로서는 적합하지 않다.The amount of waste building materials added to the cement weight is preferably in the range of 5-5% by weight. If the amount of waste building materials exceeds 55% by weight of cement, the compressive strength (based on 6kg / cm2 or more) of lightweight foamed concrete is It is weak and not suitable as a structure or flooring material.

또한, 시멘트 중량에 대한 폐건자재의 첨가량은 5% 미만일 경우 경량 기포 콘크리트의 모르타르의 양생시 수화열의 조절이 미흡하여 기포 콘크리트 자체의 수화열 조절 미비로 속건성의 경량 기포 콘크리트의 수축율에 별다른 영향을 주지 못하여 균열(crack)이 발생한다.In addition, when the amount of waste building materials added to the weight of cement is less than 5%, the control of hydration heat during curing of the mortar of lightweight foamed concrete is insufficient. Cracks occur.

비중에 큰 영향을 미치는 동물성 단백질 기포제 희석액은 전체 경량 기포 콘크리트 모르타르 1M3 당 30-80L의 거품군이 발생되는 2-7% 범위의 희석비율이 적합하다. 30L 미만의 거품군이 발생될 때에는 비중이 높아지고 압축강도는 우수하나 단열성이 떨어진다.The dilution of animal protein foaming agent, which has a great influence on specific gravity, is suitable in the dilution ratio of 2-7%, in which 30-80 L of foam groups are generated per 1 M3 of total light foamed concrete mortar. When foam group of less than 30L is generated, the specific gravity is increased and the compressive strength is excellent, but the heat insulation is poor.

반면에 80L를 초과하는 거품군이 발생할 때에는 비중이 낮고 열전도성은 우수하나 압축강도가 떨어져 양호한 바닥재가 되지 못한다.On the other hand, when the foam group exceeding 80L occurs, the specific gravity is low and the thermal conductivity is excellent, but the compressive strength is not good, so it is not a good flooring material.

본 발명의 방법에 따라 제조된 경량 기포 콘크리트는 현장 타설용, 온돌바닥용 단열 기포 콘크리트로서 효과적으로 사용될 수 있는 것으로 기포 콘크리트가 속건조성의 경량체(비중:0.3-0.6)로 타설시, 양생을 게을리할 경우 사후관리의 불충분으로 이상 건조를 일으켜 그 결과 수축균열의 증대, 강도발생이 불량하게 되고, 현장 타설시에 슬리브 바닥의 흡수율이 클수록 기포 콘크리트의 모르타르의 수분을 흡수하여 기포 콘크리트의 침하가 발생하고 이로 인하여 슬리브 표면과 기포 콘크리트와의 접착강도가 불균일해지고, 슬리브 바닥과 기포 콘크리트가 분리되어 들뜸, 울림현상이 발생하므로 이를 방지하기 위해, 슬리브 바닥의 청결후 작업이나, 혹은 타설후의 양생에서 충분히 물을 뿌리는 작업 또는 기포 콘크리트와 슬리브 바닥과의 접착성을 높이기 위해 슬리브 바닥에 시멘트 가루 혹은 모래를 현장 조건에 맞게 응용할 수 있다.Lightweight foamed concrete prepared according to the method of the present invention can be effectively used as insulated foamed concrete for on-site pouring and on-floor flooring, and when the foamed concrete is poured into a quick-drying lightweight body (specific gravity: 0.3-0.6), it neglects curing. In this case, abnormal drying occurs due to insufficient post management, and as a result, the increase in shrinkage cracking and strength generation becomes poor.As the absorption rate of the bottom of the sleeve increases during the site casting, the moisture of the mortar of the foam concrete is absorbed and the settlement of the foam concrete occurs. Due to this, the adhesive strength between the sleeve surface and the bubble concrete becomes uneven, and the bottom of the sleeve and the bubble concrete are separated, so that lifting and ringing occur. To prevent this, the sleeve bottom is sufficiently cleaned during work or curing after pouring. To improve the adhesion between watering work or aerated concrete and sleeve bottom There cement powder or sand in the bottom of the sleeve can be applied in order to suit site conditions.

그러나, 상기와 같은 공정은 공기의 단축, 작업성, 경제성의 실현 불가능으로 잘 진행이 되지 않고 있으므로 본 발명에서는 이러한 불편을 개선키 위해 폐건자재, 폐제지류를 이용한 경량 골재, 시멘트 및 물과, 희석시킨 동물성 단백질 기포제에 공기를 주입한 거품군을 혼합하여 제조한 경량 기포 콘크리트를 현장 타설을 한다.However, the above process is not progressed well due to the impossibility of shortening the air, workability, economic feasibility, and in the present invention, to diminish this inconvenience, and to dilute the waste aggregate material, lightweight aggregate using waste paper, cement and water, and dilution. Light-weight foamed concrete prepared by mixing a group of foamed air into the animal protein foaming agent is placed on site.

그리고, 본 발명은 온돌바닥용 기포 콘크리트의 양생과정에서 수축을 적게 하고 슬리브 바닥과의 접착성을 증진하며, 시멘트 양생 과정에서 기포 콘크리트 모르타르의 수화열과 기포 콘크리트 표면의 증발열과의 차이를 적절히 조절하는 보수성 물질, 기포 콘크리트 모르터의 수화열을 조절하는 물질, 결합성 물질[분산성, 윤활성, 셀프레벨링성(self-levelling property)], 건축 구조물에 대한 내알카리성, 내구성, 동물성 단백질 기포제와의 상용성 향상제를 첨가할 수도 있다.In addition, the present invention reduces the shrinkage during curing of the foamed concrete for the underfloor floor and promotes adhesion to the sleeve bottom, and properly controls the difference between the heat of hydration of the foamed concrete mortar and the heat of evaporation of the foamed concrete surface during cement curing. Water-retaining materials, materials that control the heat of hydration of aerated concrete mortar, binding materials [dispersibility, lubricity, self-leveling property], alkali resistance to building structures, durability, compatibility with animal protein foaming agents May be added.

다음의 실시예는 본 발명을 상세히 설명하는 것이지만 본 발명의 범주를 한정하는 것은 아니다.The following examples illustrate the invention in detail but do not limit the scope thereof.

[실시예 1]Example 1

시멘트 중량에 대해 150매쉬의 폐슬레이트 분쇄물 35중량%, 150매쉬의 폐천장재 분쇄물 10중량%, 수분율 10%의 폐지 슬러리 35중량%, 폐지슬러리를 800℃의 회전로에서 소성시킨 폐지 슬러리 회분 또는 플라이애쉬 15중량%를 200L의 물 및 300kg의 시멘트와 혼합한 후, 5%로 희석시킨 동물성 단백질 기포제 희석액을 공기주입(에어 컴프레셔 압력 5-9 기압)에 의해 발포기를 통과시켜 햐얀 크림상태의 거품군을 발생시키고 이 거품군을 모노펌프, 호스펌프를 통해 순간 혼합하여 경량 기포 콘크리트를 제조하였으며, 제조된 경량 기포 콘크리트를 압송하여 타설하였다.35% by weight of 150 mash of waste slate crushed powder, 10% by weight of 150 mash of waste ceiling crushing, 35% by weight of waste paper slurry of 10% moisture content, waste paper slurry ash fired in a rotary furnace at 800 ° C Alternatively, 15% by weight of fly ash is mixed with 200 L of water and 300 kg of cement, and then the animal protein foaming agent diluted to 5% is passed through the foamer by air injection (air compressor pressure 5-9 atm) to obtain a white creamy state. A foam group was generated and the foam group was instantaneously mixed through a mono pump and a hose pump to prepare lightweight foam concrete, and the prepared lightweight foam concrete was poured by pouring.

상기 본원 발명의 경량 기포 콘크리트 제조후 다음과 같은 물성 시험을 시행하여 그 결과를 하기 표 2에 기재하였다.After the lightweight foamed concrete of the present invention, the following physical properties were tested and the results are shown in Table 2 below.

[실시예 2, 실시예 3, 실시예 4][Example 2, Example 3, Example 4]

하기 표 1과 같이 성분의 사용량을 변경한 것을 제외하고는 상기 실시예 1과 동일하게 실시하고, 상기 실시예 1과 동일한 방법으로 물성치를 측정하여 그 결과를 표 2에 기재하였다.Except for changing the amount of use of the ingredients as shown in Table 1, was carried out in the same manner as in Example 1, and measured in the same manner as in Example 1, and the results are shown in Table 2.

상기 시험항목 및 시행방법Above test items and implementation method

1. 압축강도(kg/㎠) : KSF-2701-91, KSF-4701-90, KSF-4701-92.1. Compressive strength (kg / ㎠): KSF-2701-91, KSF-4701-90, KSF-4701-92.

2. 비중(밀도) : KSM-3809-92.2. Specific gravity (density): KSM-3809-92.

3. 열전도율(kcal/m.h.℃) : KSL-9016-90(평판비교법)3. Thermal Conductivity (kcal / m.h. ℃): KSL-9016-90 (Plate Plate Comparison Method)

이상과 같이, 본 발명의 방법에 의해 제조된 경량 기포 콘크리트는 미세한 기포군으로 형성되므로 양질의 온돌바닥용 경량 기포 콘크리트를 얻을 수 있으며, 우수한 열전도율(0.07-0.09kcal/m.h.℃), 압축강도(6020kg/㎠) 및 우수한 비중(0.3-0.6)을 가짐을 알 수 있다.As described above, the lightweight foamed concrete produced by the method of the present invention is formed of a fine bubble group to obtain a high quality lightweight foamed concrete for the ondol floor, excellent thermal conductivity (0.07-0.09 kcal / mh ℃), compressive strength ( 6020 kg / cm 2) and excellent specific gravity (0.3-0.6).

또한, 본 발명의 경량 기포 콘크리트는 폐건자재, 폐제지류와 같은 폐기물을 재활용함과 동시에 경량, 방음, 진동, 단열, 보온효과를 얻을 수 있다.In addition, the lightweight foamed concrete of the present invention can achieve the effect of light weight, sound insulation, vibration, heat insulation, and heat insulation while recycling waste such as waste building materials and waste paper.

Claims (7)

입자화되거나 분쇄된 폐건자재, 폐지슬러리를 소성시켜 제조한 폐지슬러리 회분을 물 및 시멘트와 혼합하고, 여기에 발포시킨 동물성 단백질 기포제 희석액을 주입하여 혼합함을 특징으로 하는 결량 골재를 이용한 경량 기포 콘크리트의 제조방법.Lightweight foamed concrete using defect aggregates characterized in that the waste paper slurry produced by calcining the granulated or crushed waste building materials and waste paper slurry is mixed with water and cement, and injected with the diluted animal protein foaming agent. Manufacturing method. 제1항에 있어서, 폐건자재는 50-300매쉬(Mash)의 폐슬레이트 분쇄물 또는, 50-300매쉬의 폐천장재 분쇄물이고 사용량은 시멘트중량에 대하여 각각 5-40중량%, 5-15중량%임을 특징으로 하는 경량기포 콘크리트의 제조방법.The waste building material according to claim 1, wherein the waste building material is 50-300 mesh waste slate ground or 50-300 mesh waste ceiling grinding, and the amount used is 5-40% by weight and 5-15% by weight, respectively. Method for producing lightweight foamed concrete, characterized in that%. 제1항에 있어서, 폐지 슬러리는 제지 공정의 폐지 슬러리를 1,2차 처리후 탈수 건조한 것으로 수분율이 20% 이내이며 사용량은 시멘트 중량에 대하여 10-40중량%임을 특징으로 하는 경량 기포 콘크리트의 제조방법.The method of claim 1, wherein the waste paper slurry is dehydrated and dried after the first and second waste paper slurry in the papermaking process, the moisture content is less than 20% and the amount of the use of the production of lightweight foamed concrete, characterized in that 10 to 40% by weight based on the weight of the cement Way. 제1항에 있어서, 폐지슬러리 회분은 폐지슬러리를 800℃의 횐전로(rotary kiln)에서 소성시켜 제조한 것으로 사용량은 시멘트 중량에 대하여 5-30중량%임을 특징으로 하는 경량 기포 콘크리트의 제조방법.The method for producing lightweight foamed concrete according to claim 1, wherein the waste paper slurry is produced by calcining the waste paper slurry in a rotary kiln at 800 ° C. 제1항에 있어서, 시멘트에 대한 물의 사용비가 0.55-0.7 범위임을 특징으로 하는 경량 기포 콘크리트의 제조방법.The method of claim 1, wherein the ratio of water to cement is in the range of 0.55-0.7. 제1항에 있어서 시멘트 중량에 대한 전체 건자재의 첨가량이 5-55중량% 범위임을 특징으로 하는 경량 기포 콘크리트의 제조방법.The method for producing lightweight foamed concrete according to claim 1, wherein the total amount of the building material added to the cement weight is in the range of 5-55% by weight. 제1항에 있어서, 동물성 단백질 기포제 희석액은 전체 경량 기포 콘크리트 모르타르의 1M3당 30-80L의 거품군이 발생되는 2-7% 범위의 희석비율이 되도록 희석함을 특징으로 하는 경량 기포 콘크리트의 제조방법.The method of claim 1, wherein the dilution of the animal protein foaming agent is prepared so as to dilute to a dilution range of 2-7% of the foam group of 30-80L per 1M 3 of the total lightweight foamed concrete mortar. Way.
KR1019940018205A 1994-07-27 1994-07-27 Process for the preparation of light weight pore concrete KR0120101B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100403817B1 (en) * 1999-12-23 2003-11-01 이성심 Manufacturing method of tiles using incineration ash (floor ash)
KR100475420B1 (en) * 2002-07-22 2005-03-10 한국건설기술연구원 Foaming agent powder for air-entertained concrete and methods of manufacturing it and air-entrained concrete using therewith
KR100802002B1 (en) * 2006-10-30 2008-02-12 주식회사 에이브이티 Autoclaved light weight concrete reinforced fiber

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100404495B1 (en) * 2002-11-06 2003-11-05 Hanjun Dev Co Ltd High-strength concrete composition incorporated with aggregate recycled from waste utility pole

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100403817B1 (en) * 1999-12-23 2003-11-01 이성심 Manufacturing method of tiles using incineration ash (floor ash)
KR100475420B1 (en) * 2002-07-22 2005-03-10 한국건설기술연구원 Foaming agent powder for air-entertained concrete and methods of manufacturing it and air-entrained concrete using therewith
KR100802002B1 (en) * 2006-10-30 2008-02-12 주식회사 에이브이티 Autoclaved light weight concrete reinforced fiber

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