KR100300761B1 - Method and structure of manufacturing a cellular concrete using a powdered forming agent - Google Patents
Method and structure of manufacturing a cellular concrete using a powdered forming agent Download PDFInfo
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- KR100300761B1 KR100300761B1 KR1019990002790A KR19990002790A KR100300761B1 KR 100300761 B1 KR100300761 B1 KR 100300761B1 KR 1019990002790 A KR1019990002790 A KR 1019990002790A KR 19990002790 A KR19990002790 A KR 19990002790A KR 100300761 B1 KR100300761 B1 KR 100300761B1
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- weight
- foaming agent
- parts
- slurry
- raw material
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- 239000011381 foam concrete Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000004088 foaming agent Substances 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000005266 casting Methods 0.000 claims abstract description 14
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 14
- 239000011147 inorganic material Substances 0.000 claims abstract description 14
- 239000000654 additive Substances 0.000 claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 23
- 238000005187 foaming Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 239000010438 granite Substances 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000007613 slurry method Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000006260 foam Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000011550 stock solution Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 238000007865 diluting Methods 0.000 description 3
- 238000007580 dry-mixing Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 235000021120 animal protein Nutrition 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- YCLAMANSVUJYPT-UHFFFAOYSA-L aluminum chloride hydroxide hydrate Chemical compound O.[OH-].[Al+3].[Cl-] YCLAMANSVUJYPT-UHFFFAOYSA-L 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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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
- 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/10—Clay
- C04B14/12—Expanded clay
-
- 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
-
- 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/20—Mica; Vermiculite
-
- 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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/10—Burned or pyrolised refuse
-
- 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)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
1. 청구 범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION
분말 기포제를 이용한 경량기포콘크리트의 제조방법 및 그 장치.Method for producing lightweight foamed concrete using powder foaming agent and apparatus therefor.
2. 발명이 해결하려고 하는 기술적 과제2. The technical problem to be solved by the invention
분말 기포제에 의해 제품의 품질이 균질하고 현장의 환경오염을 방지할 수 있으며, 수요자가 원하는 제품의 비중을 자유롭게 만들 수 있는 특성을 갖는 경량기포콘크리트 제조방법 및 그 장치를 제공함.The powder foaming agent provides a homogeneous product quality, prevents environmental pollution in the field, and provides a method for manufacturing lightweight foam concrete and its device having the characteristics of making the specific gravity of the product desired by the consumer free.
3. 발명의 해결방법의 요지3. Summary of Solution to Invention
현장 타설용 경량기포콘크리트의 제조방법에 있어서, 시멘트 약 50 내지 95 중량부, 무기재료 약 5 내지 50 중량부, 경량첨가물 약 0.1∼10중량부, 건조분말 유기물 기포제 약 0.1∼1.0 중량부를 포함하는 건식 혼합한 원료를 믹서에 투입하고, 물을 전체 원료의 약 40 내지 70 중량부를 첨가하여 상온에서 소정의 시간동안 혼련하는 과정을 통해 상기 건조분말 유기물 기포제가 액상화 되고, 여기에 압축공기를 압입하여 기포군이 형성되도록 한다.In the method for producing lightweight foamed concrete for in-site casting, the method comprises about 50 to 95 parts by weight of cement, about 5 to 50 parts by weight of inorganic material, about 0.1 to 10 parts by weight of light additives, and about 0.1 to 1.0 parts by weight of dry powder organic foaming agent. Dry mixed raw materials are added to a mixer, water is added to about 40 to 70 parts by weight of the whole raw material and the mixture is kneaded at room temperature for a predetermined time to liquefy the dry powder organic foaming agent, and pressurized compressed air Allow bubble groups to form.
4. 발명의 중요한 용도4. Important uses of the invention
경량기포콘크리트를 제조하는데 이용된다.It is used to make lightweight foam concrete.
Description
본 발명은 건조 분말 기포제를 이용한 현장 타설용 경량기포콘크리트 제조방법 및 장치에 관한 것으로, 더욱 자세하게는 경량기포콘크리트를 제조함에 있어, 건조분말 기포제를 이용하여 경량기포콘크리트의 품질을 균질하게 유지하고, 제조공정을 단순화시키면서 시공성을 향상시킨 현장 타설용 경량기포콘크리트 제조방법 및 장치에 관한 것이다.The present invention relates to a method and apparatus for manufacturing lightweight foamed concrete for on-site casting using a dry powder foaming agent, and more particularly, to manufacturing lightweight foamed concrete, to maintain homogeneously the quality of lightweight foamed concrete using a dry powder foaming agent, The present invention relates to a method and apparatus for manufacturing lightweight foamed concrete for on-site casting while improving workability while simplifying a manufacturing process.
경량기포콘크리트는 고압증기양생(ALC류), 상압증기양생(PALC류), 현장타설(아파트 단열용) 경량기포콘크리트의 크게 3 종류로 구분되는데, 양생방법 중에서도 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.Lightweight foam concrete is classified into three types: high pressure steam curing (ALC), atmospheric steam curing (PALC), and in-situ casting (for apartment insulation) lightweight foam concrete. It is divided into pre-foam method and mixer-foam 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. 또, 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 most of the time, 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 small, 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 액상 유기물 기포제(동물성 단백질 기포제, 식물성기포제 등)가 사용되어 왔다.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 for lightweight foam concrete for in-situ casting, and liquid organic foaming agents (animal protein foaming agents, vegetable foaming agents, etc.) have been used to manufacture lightweight foaming concrete for in-situ casting.
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 만들어 지는 것으로 되어 있으나, 기포를 만드는 발포기의 형상이나 크기가 각 장비마다 일정하지 않기 때문에 기포군의 품질도 다르게 제조될 수밖에 없다. 또, 기포 원액을 희석하는 농도도 작업자에 따라 약 2%에서 7%까지 다르게 희석하므로, 기포군의 비중이 각양각색임은 물론 경량기포콘크리트의 품질이 불균질함은 당연하다고 할 수 있다. 또, 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.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 onto 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, when the specific gravity of the bubble group is generally about 0.035 to 0.05 and mixed with the cement slurry, stable foam concrete is produced. However, since the shape and size of the foaming machine making the bubble are not constant for each equipment, The quality can only be manufactured differently. In addition, since the concentration of diluting the bubble undiluted solution varies from about 2% to 7% depending on the operator, the specific gravity of the bubble group is varied, as well as the quality of the light foam concrete is non-uniform. In addition, since the bubble stock solution used is an organic substance, it is difficult to treat the foam dilution after the completion of the foam concrete work, and there is a problem such that if the remaining foam solution is left or discharged to the sewer, it will rot and cause odor. .
경량기포콘크리트에서 기포군의 생성이 중요한 만큼 좀더 진보된 기술로는기포 원액을 혼합수와 희석하지 않고 기포 원액과 혼합수를 각각 사용하여 원가상승 요인을 방지하고 기포액이 남는 것을 방지하는 방법이 있을 수 있으나, 이는 복잡한 장치가 요구되는 문제점이 있고, 여전히 품질의 불안정을 문제를 내포하고 있다.As the creation of bubble group in lightweight foamed concrete is more advanced, there is a method of preventing the cost increase and preventing the remaining bubble liquid by using the bubble stock solution and the mixed water separately without diluting the bubble stock solution with the mixed water. However, this is a problem that requires a complicated device, and still poses a problem of quality instability.
따라서, 본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위한 것으로, 본 발명의 목적은 건조분말 기포제를 사용하여, 건식 혼합 후에 혼합수를 넣고 혼련할 때, 상온에서 발포가 이루어지도록 함으로써, 경량기포콘크리트의 타설장비를 간소화시키고 품질을 안정화시키며, 기포제를 건식 혼합함으로 누구나 쉽게 시공할 수 있는 현장 타설용 경량기포콘크리트 제조방법 및 장치를 제공하는데 있다.Accordingly, the present invention is to solve the problems of the prior art as described above, an object of the present invention is to use a dry powder foaming agent, when mixing and mixing the mixed water after dry mixing, so that foaming is performed at room temperature, lightweight It is to provide a method and apparatus for manufacturing lightweight foamed concrete for on-site pouring that can be easily constructed by anyone by simplifying the pouring equipment of foam concrete, stabilizing the quality, and dry mixing the foaming agent.
도1은 본 발명에 따른 경량기포콘크리트 제조장치의 구성도.1 is a block diagram of a lightweight foamed concrete manufacturing apparatus according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
11,18 : 사일로 12 : 속도조절기11,18 silo 12 speed controller
13 : 스크류 콘베이어 14 : 혼합수 저장용기13: screw conveyor 14: mixed water container
15 : 정량펌프 16 : 유량 계측기15: metering pump 16: flow meter
17 : 1차 믹서 19 : 2차 믹서17: 1st mixer 19: 2nd mixer
20 : 슬러리 이송펌프 21 : 콤프레셔20: slurry transfer pump 21: compressor
22 : 압축공기 투입구 23 : 역류방지 밸브22: compressed air inlet 23: check valve
24 : 압력계 25 : 이송호스24: pressure gauge 25: transfer hose
상기 목적을 달성하기 위한 본 발명에 따른 경량기포콘크리트 제조방법은, 현장 타설용 경량기포콘크리트의 제조방법에 있어서, 시멘트 약 50 내지 95 중량부, 무기재료 약 5 내지 50 중량부, 경량첨가물 약 0.1∼10중량부, 건조분말 유기물 기포제 약 0.1∼1.0 중량부를 포함하는 건식 혼합한 원료를 믹서에 투입하고, 물을 전체원료의 약 40 내지 70 중량부를 첨가하여 상온에서 소정의 시간동안 혼련하는 과정을 통해 상기 건조분말 유기물 기포제가 액상화 되고, 여기에 압축공기를 압입하여 기포군이 형성되도록 하는 것을 특징으로 한다.Light-weight foamed concrete manufacturing method according to the present invention for achieving the above object, in the manufacturing method of light-weight foamed concrete for on-site casting, about 50 to 95 parts by weight of cement, about 5 to 50 parts by weight of inorganic material, about 0.1 to about light additives The process of kneading at room temperature for a predetermined time by adding a dry mixed raw material containing -10 parts by weight to about 0.1 to 1.0 parts by weight of a dry powder organic material foaming agent into a mixer, and adding about 40 to 70 parts by weight of water The dry powder organic foaming agent is liquefied through, it is characterized in that the bubble group is formed by injecting compressed air therein.
또한, 본 발명에 따른 현장 타설용 경량기포콘크리트 제조장치는, 결합재, 분말 기포제, 무기재료 및 경량첨가물 등의 원료를 원하는 양만큼 정확히 계량하여투입하기 위한 원료투입수단; 정량의 혼합수를 유입받아 상기 원료투입수단으로부터 투입된 원료를 슬러리화하면서 상기 분말 기포제가 액상화 되도록 하는 혼합수단; 압축공기를 생성하는 압축공기 생성수단; 및 상기 혼합수단에 의해 생성된 슬러리를 이송하기 위해 펌핑하고, 상기 펌핑된 슬러리의 외주 혹은 중앙부에 상기 압축공기를 압입하여 상기 슬러리 내에 기포가 생성되도록 하는 이송수단을 구비하는 것을 특징으로 한다.In addition, the lightweight foaming concrete manufacturing apparatus for on-site pouring according to the present invention, raw material input means for precisely weighing and inputting the raw materials, such as binders, powder foaming agents, inorganic materials and lightweight additives as desired; Mixing means for liquefying the powder foaming agent while slurrying the raw material introduced from the raw material input means by receiving a fixed amount of mixed water; Compressed air generating means for generating compressed air; And a conveying means for pumping the slurry produced by the mixing means and injecting the compressed air into the outer circumference or the center of the pumped slurry to generate bubbles in the slurry.
본 발명에서는 종래 액상의 유기물 기포제와 동일한 조성물을 갖는 건조 분말 기포제를 이용하여 경량기포콘크리트를 제조한다. 여기서, 건조 분말 기포제는 종래 액상 기포제를 건조기를 통해 수분을 증발시켜, 고형 분말을 제조한 다음, 괴상 혹은 분말상으로 분쇄하여 제조되며, 이는 일반적인 공지 기술을 이용하여 용이하게 구현될 수 있다.In the present invention, lightweight foamed concrete is produced using a dry powder foaming agent having the same composition as a conventional liquid organic foaming agent. Here, the dry powder foaming agent is prepared by evaporating moisture through a conventional liquid foaming agent through a dryer to prepare a solid powder, and then pulverizing into a bulk or a powder form, which can be easily implemented using general known techniques.
본 발명에서는 시멘트 약 50 내지 95 중량부와, 무기재료 약 5 내지 50 중량부, 경량첨가물(EVA[Ethylene Vinyl Acetate], EPS[Expanded Sthylene Beed]) 약 0.1∼10중량부, 건조 분말 기포제 약 0.1∼1.0 중량부를 건식 혼합한 원료를 믹서에 투입하고, 물을 전체 원료의 약 40 내지 70 중량부를 첨가하여 소정의 시간동안 혼련하면, 건식 원료가 슬러리화되면서 분말 기포제가 액상화 되고, 여기에 압축공기를 압입하여 슬러리내에 기포군이 형성되도록 한다.In the present invention, about 50 to 95 parts by weight of cement, about 5 to 50 parts by weight of inorganic material, about 0.1 to about 10 parts by weight of lightweight additives (EVA (Ethylene Vinyl Acetate), EPS [Expanded Sthylene Beed]), about 0.1 to about dry powder foaming agent When the raw material mixed by dry mixing with 1.0 parts by weight is added to the mixer, and water is kneaded for a predetermined time by adding about 40 to 70 parts by weight of the whole raw material, the powdered foaming agent is liquefied while the dry raw material is slurried, and compressed air is added thereto. Press to press to form a bubble group in the slurry.
여기서, 무기재료는 시공장치의 사양에 따라 적당한 입도를 선택하는데, 약 80 내지 120목 혹은 약 60 내지 80목의 무기재료를 사용하는게 바람직하며, 이는 규석, 규사, 화강암, 안산암, 혈암, 카올린, 장석, 활석, 운모, 플라이 애쉬, 슬라그, 철산화물 및 흑연으로 구성되는 집단으로부터 선택되는 최소한 한 종류 이상의 무기 분말을 포함한다.Here, the inorganic material is selected according to the specifications of the construction device, select the appropriate particle size, it is preferable to use the inorganic material of about 80 to 120 or about 60 to 80 trees, which is silica, silica, granite, andesite, shale, kaolin, At least one inorganic powder selected from the group consisting of feldspar, talc, mica, fly ash, slag, iron oxides and graphite.
본 발명에 따른 일 실시 예를 구체적으로 살펴보면, 다음과 같다.Looking at one embodiment according to the present invention in detail, as follows.
시멘트 약 70중량부와 무기재료 약 30중량부, 건조분말 기포제 약 0.13중량부, 경량 첨가물 약 0.1중량부를 건식 혼합하고, 상기 건식 혼합한 원료를 믹서에 투입하고, 총 원료 중량의 약 60중량부의 혼합수(물)을 첨가하여, 믹서내에서 약 2분정도 교반한다. 그러면, 건조분말 기포제가 물에 녹으면서 액상화 되고, 여기에 압축공기를 압입하여 슬러리내에 기포들이 생성되도록 한다. 이로 인해 설계비중에 맞는 경량기포콘크리트를 제조할 수 있다. 이렇게 경량기포콘크리트를 제조한 다음, 성형화하기 위해 지름 약 100mm, 높이 약 200mm의 몰드에 부어 상온 상압하의 습기함이나 습기실에서 약 48시간 저장 후, 몰드를 제거하고, 다시 습기함이나 습기실에서 약 5일간 저장하며, 이후 약 28일까지는 온도 약 18 내지 25℃, 상대습도 약 40 내지 80%인 실험실내의 대기중에 저장한다.About 70 parts by weight of cement, about 30 parts by weight of inorganic material, about 0.13 parts by weight of dry powder foaming agent and about 0.1 parts by weight of light additives are dry mixed, and the dry mixed material is introduced into a mixer, and about 60 parts by weight of the total raw material weight. Mixed water (water) is added and stirred for about 2 minutes in a mixer. Then, the dry powder foaming agent is liquefied as it is dissolved in water, and compressed air is pressed therein to generate bubbles in the slurry. This makes it possible to manufacture lightweight foam concrete that fits the design weight. After manufacturing lightweight foam concrete like this, it is poured into a mold having a diameter of about 100 mm and a height of about 200 mm for molding, and stored for about 48 hours in a damp or humid chamber under normal pressure, and then the mold is removed. And stored for about 5 days in the atmosphere in the laboratory at a temperature of about 18 to 25 ℃, relative humidity of about 40 to 80% until about 28 days.
이렇게 만들어진 제품은 'KS L 5220 건조 시멘트 모르타르'에 따른 제조로서, 제조된 모르타르의 물성을 평가하여 표1에 나타내었다.The product thus made is prepared according to KS L 5220 dry cement mortar, and the physical properties of the prepared mortar are evaluated and shown in Table 1.
한편, 본 발명에 따른 현장 타설용 경량기포콘크리트 제조장치를 살펴보면다음과 같다.On the other hand, look at the lightweight foamed concrete manufacturing apparatus for on-site casting according to the present invention.
본 발명에 따른 경량기포콘크리트 제조장치는 종래의 경량기포콘크리트 제조장치를 그대로 이용하면서, 액상의 기포제 희석액을 사용하지 않음으로, 그와 관련된 용기와 발포기 등을 구비시키지 않고, 단지 압축공기를 발생시키는 콤프레셔만을 포함하여 구성할 수 있다.The lightweight foamed concrete manufacturing apparatus according to the present invention does not use a liquid foaming agent diluent while using the conventional lightweight foamed concrete manufacturing apparatus as it is, and does not have a container and foaming machine, etc. associated with it, and generates only compressed air. It can be configured to include only the compressor to make.
한편, 도1에 도시된 본 발명에 따른 경량기포콘크리트 제조장치는 경량기포콘크리트의 품질을 향상시키기 위한 개선된 장치이다.On the other hand, the lightweight foamed concrete manufacturing apparatus according to the present invention shown in Figure 1 is an improved device for improving the quality of lightweight foamed concrete.
도면에서 11,18은 원료 저장 용기인 사일로, 12는 속도조절기, 13은 스크류콘베이어, 14는 혼합수 저장용기, 15는 정량펌프, 16은 유량 계측기, 17은 1차 믹서, 19는 2차 믹서, 20은 슬러리 이송펌프, 21은 콤프레셔, 22는 압축공기 투입구, 23은 역류방지 밸브, 24는 압력계, 25는 이송호스를 각각 나타낸다.In the figure, 11 and 18 are silos as raw material storage containers, 12 are speed controllers, 13 are screw conveyors, 14 are mixed water storage containers, 15 are metering pumps, 16 are flow meters, 17 are primary mixers, 19 are secondary mixers. , 20 is a slurry transfer pump, 21 is a compressor, 22 is a compressed air inlet, 23 is a non-return valve, 24 is a pressure gauge, and 25 is a transfer hose.
본 발명에서는 원료를 투입하는 장치로, 종래의 벨트 콘베이어 대신에, 시멘트 혹은 분말 기포제 등의 원료를 저장하는 사일로(11)와, 원통 실린더 안에 스크류를 설치한 스크류 콘베이어(13)와, 상기 스크류 콘베이어(13)를 구동시키는 모터(도시되지 않음)와, 상기 모터의 회전 속도를 조절하기 위한 속도조절기(12)를 구비하여, 속도조절기(12)를 통해 스크류의 회전 속도를 정속으로 조절함으로써, 사일로(11)에 저장된 원료가 원하는 양만큼 투입되도록 한다.In the present invention, as a device for inputting raw materials, instead of the conventional belt conveyor, a silo 11 for storing raw materials such as cement or powder foaming agent, a screw conveyor 13 having screws installed in a cylindrical cylinder, and the screw conveyor A motor (not shown) for driving 13 and a speed controller 12 for adjusting the rotational speed of the motor, and by adjusting the rotational speed of the screw through the speed controller 12 at a constant speed, the silo Make sure that the raw material stored in (11) is added in the desired amount.
본 발명에 따른 혼합부는 1차 믹서(17)와 2차 믹서(19)의 형태로 구성된다. 1차 믹서(17)는 투입된 건조 분말 기포제와 결합재인 시멘트를 슬러리화 하기 위한 것으로, 스크류 콘베이어(13)를 구동시키는 모터에 의해 구동되고, 스크류 콘베이어와 유사한 구조로 원통형 실린더 내부에 투입된 원료가 믹싱되면서 이송될 수 있도록 날개가 부착되어 있다. 따라서, 원료투입용 스크류 콘베이어(13)에 의해 정량의 원료가 상기 스크류 콘베이어(13)에 연결된 1차 믹서(17)로 이송되고, 정량 펌프(15)에 의해 혼합수(물) 저장용기(14)에 저장된 물을 원하는 양만큼 1차 믹서(17)로 투입하여, 이송된 원료를 슬러리화 한다. 한편, 보다 정확한 혼합수의 투입량을 측정하기 위해 유량 계측기(16)가 정량 펌프(15)의 후단에 설치될 수 있다. 이와 같이 1차 믹서를 이용하여 원통형 실린더 내에서 원료를 슬러리화 하는 과정을 통해 건조 분말 기포제는 액상화 된다. 이렇게 만들어진 슬러리는 2차 믹서(19)로 이송되는데, 2차 믹서(18)에는 경량첨가물 무기재료와 같은 다른 원료들이 추가 투입된다. 이를 위해 경량첨가물 혹은 무기재료 저장용 사일로(18)가 구비되며, 마찬가지로 모터의 속도를 조절하는 속도조절기와 스크류 콘베이어가 설치되어, 원하는 양만큼의 첨가물들을 투입할 수 있다. 2차 믹서(19)는 종래의 믹서와 유사한 구조를 가지며, 1차 믹서(17)에 의해 투입된 슬러리와 경량첨가물 무기재료를 혼합하는 기능을 수행한다. 이와 같은 1,2차의 혼합 과정을 통해 분말 기포제는 모두 액상화 된다.The mixing section according to the invention is configured in the form of a primary mixer 17 and a secondary mixer 19. The primary mixer 17 is for slurrying the cement, which is a binder and the dry powder foaming agent, and is driven by a motor driving the screw conveyor 13, and the raw material introduced into the cylindrical cylinder is mixed in a structure similar to the screw conveyor. The wing is attached so that it can be transported. Accordingly, the raw material of the quantity is transferred to the primary mixer 17 connected to the screw conveyor 13 by the screw conveyor 13 for feeding the raw material, and the mixed water (water) storage container 14 is carried out by the metering pump 15. ) Into the primary mixer 17 by the desired amount of water, to slurry the transferred raw materials. On the other hand, the flow rate meter 16 may be installed at the rear end of the metering pump 15 to measure the input amount of the mixed water more accurately. As such, the dry powder foaming agent is liquefied through the process of slurrying the raw material in the cylindrical cylinder using the primary mixer. The slurry thus produced is transferred to the secondary mixer 19, where other raw materials such as lightweight additive inorganic materials are additionally added. For this purpose, a light additive or inorganic material storage silo 18 is provided, and likewise, a speed controller and a screw conveyor for adjusting the speed of the motor are installed, so that the desired amount of additives can be added. The secondary mixer 19 has a structure similar to that of a conventional mixer, and performs a function of mixing the slurry introduced by the primary mixer 17 and the lightweight additive inorganic material. Through the first and second mixing processes, all powder foaming agents are liquefied.
이렇게 생성된 슬러리를 이송펌프(20)를 이용해 이송하게 되는데, 본 발명에서는 이송펌프(20)를 피스톤식 펌프로 구현하여, 피스톤의 1행정으로 슬러리의 흡입과 배출이 동시에 이루어지도록 한다. 또한, 본 발명에서는 이송펌프(20)의 후단에 콤프레셔(21)에 의해 발생된 압축공기를 주입하기 위한 다수개의 주입구를 형성한다. 즉, 본 발명에서는 압축공기를 이송펌프(20)의 토출구와 이송관로 사이에 설치한 압축공기 주입구(22)를 통해 몰탈 슬러지의 외주 또는 중심부에 압입한다. 따라서, 몰탈 슬러리 내에 포함된 액상화된 기포제에 의해 슬러리 내에 기포가 생성된다. 이렇게 만들어진 경량기포콘크리트는 역류 방지용 밸브(23)를 통해 이송관로(25)를 따라 타설 현장으로 이송된다. 한편, 역류방지용 밸브(23)의 후단에는 이송압을 계측하기 위한 압력계(24)가 설치될 수 있으며, 또한 역류방지용 밸브(23)의 후단에는 이송량을 초과하는 경량기포콘크리트의 슬러리를 외부로 배출하기 위한 드레인이 설치될 수 있다.The slurry thus produced is transferred using the transfer pump 20. In the present invention, the transfer pump 20 is implemented as a piston pump, so that the suction and discharge of the slurry are simultaneously performed in one stroke of the piston. In addition, in the present invention, a plurality of inlets for injecting compressed air generated by the compressor 21 is formed at the rear end of the transfer pump 20. That is, in the present invention, the compressed air is press-fitted into the outer circumference or the center of the mortar sludge through the compressed air inlet 22 provided between the discharge port of the transfer pump 20 and the conveying pipe. Thus, bubbles are generated in the slurry by the liquefied foaming agent contained in the mortar slurry. The light-foamed concrete made in this way is transferred to the site of pouring along the transfer pipe 25 through the non-return valve 23. On the other hand, a pressure gauge 24 for measuring the transfer pressure may be installed at the rear end of the non-return valve 23, and the slurry of lightweight foamed concrete exceeding the transfer amount is discharged to the outside at the rear end of the non-return valve 23. A drain may be provided.
따라서, 상기와 같은 본 발명에 의하면 건조분말상의 기포제를 이용함으로써, 종래 경량기포콘크리트 제조시 제기되었던 기포품질의 불안정을 해소하고, 별도의 기포발생장치가 필요치 않으므로, 시공장치가 간소화되며, 기포제의 손실이나 잔류물 처리로 인한 원가 상승 및 환경오염 문제를 해결할 수 있는 효과가 있다.Therefore, according to the present invention as described above, by using the foaming agent in the dry powder, to solve the instability of the bubble quality caused in the conventional manufacturing of lightweight foam concrete, and does not require a separate bubble generating device, the construction device is simplified, the foaming agent of It is effective to solve the cost increase and environmental pollution problem caused by loss or residue treatment.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020019680A (en) * | 2000-09-06 | 2002-03-13 | 김두홍 | Light weight foamed concrete using granite sludge |
| KR20030085790A (en) * | 2002-05-02 | 2003-11-07 | 정광복 | Travelling pump car for lightweight formed concrete |
| KR100532540B1 (en) * | 2003-06-05 | 2005-12-01 | 안기주 | Bubble concrete mortar composition and its manufacturing process |
| KR100568932B1 (en) * | 2002-08-20 | 2006-04-07 | 한국후라이애쉬시멘트공업(주) | Composition of Lightweight / Foamed Concrete and Method of Making Same |
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| KR100496646B1 (en) * | 2001-06-26 | 2005-06-22 | 주식회사 리폼시스템 | Lightweight foaming concreat |
| KR100448330B1 (en) * | 2002-01-11 | 2004-09-10 | 조병완 | artificial aggregate using fly-ashes and bottom-ashes and the production method using the same |
| KR20030061983A (en) * | 2002-01-14 | 2003-07-23 | 대신콘크리트 주식회사 | Lightweight bubble artificial stone using foam and its manufacturing method |
| 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 |
| KR101406501B1 (en) * | 2013-12-09 | 2014-06-27 | 이재수 | Manufacturing Apparatus of mortar bubble concrete and Method thereof |
| KR101582999B1 (en) * | 2013-12-10 | 2016-01-06 | 강원대학교산학협력단 | Concrete paving apparatus and method for forming a joint in high-performance concrete |
| US9926671B2 (en) | 2014-01-10 | 2018-03-27 | Kangwon National University University—Industry Cooperation Foundation | Method for repairing paved road |
| KR102483897B1 (en) * | 2022-02-28 | 2023-01-04 | 김정규 | Aerated concrete containing rice husk and its manufacturing method |
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1999
- 1999-01-28 KR KR1019990002790A patent/KR100300761B1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020019680A (en) * | 2000-09-06 | 2002-03-13 | 김두홍 | Light weight foamed concrete using granite sludge |
| KR20030085790A (en) * | 2002-05-02 | 2003-11-07 | 정광복 | Travelling pump car for lightweight formed concrete |
| KR100568932B1 (en) * | 2002-08-20 | 2006-04-07 | 한국후라이애쉬시멘트공업(주) | Composition of Lightweight / Foamed Concrete and Method of Making Same |
| KR100532540B1 (en) * | 2003-06-05 | 2005-12-01 | 안기주 | Bubble concrete mortar composition and its manufacturing process |
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