KR20030070204A - Composition for light weight artificial aggregate made from waste material and method for manufacturing the same - Google Patents
Composition for light weight artificial aggregate made from waste material and method for manufacturing the same Download PDFInfo
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- KR20030070204A KR20030070204A KR1020020009250A KR20020009250A KR20030070204A KR 20030070204 A KR20030070204 A KR 20030070204A KR 1020020009250 A KR1020020009250 A KR 1020020009250A KR 20020009250 A KR20020009250 A KR 20020009250A KR 20030070204 A KR20030070204 A KR 20030070204A
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- 239000000203 mixture Substances 0.000 title claims abstract description 110
- 239000002699 waste material Substances 0.000 title claims abstract description 87
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 48
- 239000004927 clay Substances 0.000 claims abstract description 55
- 239000010802 sludge Substances 0.000 claims abstract description 55
- 239000000654 additive Substances 0.000 claims abstract description 34
- 239000010801 sewage sludge Substances 0.000 claims abstract description 25
- 239000012065 filter cake Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002956 ash Substances 0.000 claims description 57
- 230000000996 additive effect Effects 0.000 claims description 29
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 28
- 239000010883 coal ash Substances 0.000 claims description 28
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 24
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 19
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 12
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 8
- 239000001095 magnesium carbonate Substances 0.000 claims description 7
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 150000001339 alkali metal compounds Chemical class 0.000 claims description 2
- 150000001341 alkaline earth metal compounds Chemical class 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 8
- 238000005187 foaming Methods 0.000 abstract description 4
- -1 carbonate compound Chemical class 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 229910052783 alkali metal Inorganic materials 0.000 abstract description 2
- 150000001340 alkali metals Chemical class 0.000 abstract description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract description 2
- 150000001342 alkaline earth metals Chemical class 0.000 abstract description 2
- 239000004566 building material Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 41
- 230000008569 process Effects 0.000 description 38
- 238000010304 firing Methods 0.000 description 32
- 238000002156 mixing Methods 0.000 description 15
- 238000009740 moulding (composite fabrication) Methods 0.000 description 6
- 239000010881 fly ash Substances 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002918 waste heat 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
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
우수한 기계적 강도와 낮은 흡수율을 갖는 페기물을 이용한 인공 경량 골재용 조성물 및 그 제조방법이 제공된다. 제지 슬러지 소각재 5∼45 중량부, 석탄회 5∼35 중량부 및 하수오니 소각재 5∼35 중량부로 이루어진 그룹 중에서 선택된 적어도 하나의 폐기물에 점토 40∼70 중량부 및 첨가제 3∼18 중량부를 첨가하여 혼합체를 형성한 다음, 필터 프레싱하여 필터 케이크를 형성한다. 필터 케이크를 숙성시킨 후, 성형하여 제1 및 제2 성형체를 형성한 다음, 제2 성형체를 건조시킨다. 건조된 제2 성형체를 소결하여 소결체를 형성하고, 소결체를 냉각시켜 경량 골재용 조성물을 완성한다. 소각재 형태로 배출되는 다양한 폐기물들에 경량 골재로서의 제조가 가능하도록 발포에 필요한 액상과 가스의 공급원으로 알칼리 금속 또는 알칼리토 금속의 카보네이트 화합물을 적정량 첨가함으로써 우수한 기계적 강도와 낮은 흡수율을 갖는 동시에 경제성을 갖는 경량 골재용 조성물을 제조할 수 있다. 적절한 폐기물의 조합을 통하여 경량 골재를 제조하기 때문에 원료비가 거의 들지 않게 되며, 각종 환경 문제를 야기하고 있는 각종 폐기물들을 건축용 자재로 재활용할 수 있다.Provided are a composition for artificial lightweight aggregate using waste material having excellent mechanical strength and low water absorption, and a method of manufacturing the same. The mixture was added by adding 40 to 70 parts by weight of clay and 3 to 18 parts by weight of additives to at least one waste selected from the group consisting of 5 to 45 parts by weight of paper sludge incinerator, 5 to 35 parts by weight of ash and 5 to 35 parts by weight of sewage sludge. After forming, the filter is pressed to form a filter cake. After the filter cake is aged, it is molded to form first and second molded bodies, and then the second molded bodies are dried. The dried second molded body is sintered to form a sintered compact, and the sintered compact is cooled to complete the composition for lightweight aggregate. It has excellent mechanical strength and low absorption rate as well as economic efficiency by adding appropriate amount of carbonate compound of alkali metal or alkaline earth metal as a source of liquid and gas necessary for foaming so that it can be manufactured as lightweight aggregate to various wastes discharged in the form of incineration. The composition for lightweight aggregate can be manufactured. Since the lightweight aggregate is manufactured through the appropriate combination of wastes, the raw material cost is hardly consumed, and various wastes causing various environmental problems can be recycled as building materials.
Description
본 발명은 폐기물을 이용한 인공 경량 골재용 조성물 및 그 제조 방법에 관한 것으로서, 보다 상세하게는 소각재 형태의 각종 폐기물들에 알칼리 금속 또는 알칼리토 금속의 카보네이트 화합물을 첨가함으로써 우수한 특성을 가지면서도 저렴한 비용으로 제조할 수 있는 폐기물을 이용한 인공 경량 골재용 조성물 및 그 제조 방법에 관한 것이다.The present invention relates to a composition for artificial lightweight aggregate using waste and a method of manufacturing the same. More specifically, by adding carbonate compounds of alkali metal or alkaline earth metal to various wastes in the form of incineration ash, The present invention relates to a composition for artificial lightweight aggregate using waste which can be produced, and a method for producing the same.
일반적으로 경량 골재란 KS F 2505(골재의 단위무게 시험방법)에 규정된 바에 따르면 약 0.8∼1.2 tonf/㎥ 정도의 단위 중량을 가지는 골재를 말하며, 이러한 경량 골재는 크게 자연산 경량 골재와 인공 경량 골재로 구분되지만, 우리나라의 경우에는 사용 가능한 형태의 대량의 자연산 경량 골재는 거의 기대할 수 없는 형편이며, 인공 경량 골재를 대량 생산하는 것은 아직 수요에 부응하고 있지 못하는 상태이다.In general, lightweight aggregate refers to aggregate having a unit weight of about 0.8 to 1.2 tonf / ㎥, as defined in KS F 2505 (Unit weight test method of aggregate), and these lightweight aggregates are largely natural lightweight aggregates and artificial lightweight aggregates. In the case of Korea, a large amount of natural lightweight aggregates that can be used in Korea is almost unpredictable, and mass production of artificial lightweight aggregates has not yet met the demand.
대체로 인공 경량 골재는 팽창성 혈암, 팽창성 점토, 플라이 애쉬(fly ash) 등을 주원료로 하여 제조되며, 외양이 깨끗하고, 강도가 강하며, 내구성이 우수한 조건을 만족해야 한다. 또한, 인공 경량 골재는 적당한 입도 및 단위 중량을 가져야 하는 동시에 콘크리트 및 강재에 나쁜 영향을 주는 유해 물질을 함유해서는 안되며, 제조 공정에 따른 품질의 변동이 작아야 한다.Generally, artificial lightweight aggregates are manufactured with expandable shale, expandable clay, and fly ash as the main raw materials, and should satisfy conditions that are clean in appearance, strong in strength, and excellent in durability. In addition, artificial lightweight aggregates must have a suitable particle size and unit weight and at the same time contain no harmful substances that adversely affect concrete and steel, and the quality variation according to the manufacturing process should be small.
현재, 각종 산업 현장에서 발생하는 플라이 애쉬, 페이퍼 애쉬(paper ash), 슬러지(sluge) 또는 소각 폐기물 등과 같은 폐기물을 재활용하여 경량 골재를 제조하려는 연구가 활발하게 진행되고 있다. 그러한 연구의 결과로서 국내 특허 제 153485호에는 점토에 플라이 애쉬를 다량 첨가한 인공 경량 골재가 개시되어 있으며, 특허 제 186278호에는 규사 미분, 제지 슬러지 소각재 및 산화철을 주원료로 인공 경량 골재가 제시되어 있다. 또한, 국내 공개특허 공보 제 1998-33800호 및 제 1998-1915호에는 각기 플라이 애쉬와 석분 슬러지를 이용한 경량 골재 및 점토와 고령토에 소각폐기물을 첨가한 경량 골재가 개시되어 있다.At present, studies are being actively conducted to manufacture lightweight aggregate by recycling waste such as fly ash, paper ash, sludge or incineration waste generated in various industrial sites. As a result of such a study, Korean Patent No. 153485 discloses an artificial lightweight aggregate having a large amount of fly ash added to clay, and Patent No. 186278 proposes an artificial lightweight aggregate mainly containing silica sand, paper sludge incineration ash, and iron oxide. . In addition, Korean Patent Laid-Open Publication Nos. 1998-33800 and 1998-1915 disclose lightweight aggregates using fly ash and stone flour sludge, respectively, and lightweight aggregates in which incineration wastes are added to clay and kaolin.
전술한 바와 같이, 플라이 애쉬, 제지 슬러지 소각재 및 각종 슬러지 등의 여러 가지 폐기물을 이용하여 경량 골재를 제조하는 방법에 대하여 많은 문헌들이 있지만, 실제로는 대다수의 경량 골재가 실용화되지 못하고 있으며 이러한 폐기물을 이용하여 제조되는 인공 경량 골재가 실용화되지 못하고 있는 이유로는 크게 다음과 같은 원인을 들 수 있다.As mentioned above, there are many literatures on how to produce lightweight aggregates using various wastes such as fly ash, paper sludge incineration ash and various sludges, but in reality most lightweight aggregates have not been put to practical use. The reason why the artificial light weight aggregate is not commercialized is largely as follows.
그 첫째로는, 경량 골재의 생산 단가가 너무 높기 때문에 경제성을 만족시키지 못하는 것이 가장 큰 원인이며, 다음으로는 제조된 경량 골재가 기계적 강도와 흡수율 등의 경량 골재로서 요구되는 특성이 우수하지 못하기 때문이다. 또한, 인공 경량 골재의 제조에 필요한 성분들을 인위적으로 조합하여 사용하는 경우에는, 원료의 가격도 고가이지만, 경량 골재를 구성하는 각 성분들을 균일하게 혼합하기가 매우 어려운 문제가 있다.Firstly, the production cost of light weight aggregate is so high that it is the biggest reason for not satisfying economic feasibility. Next, the light weight aggregate produced is not excellent in the characteristics required as light weight aggregate such as mechanical strength and water absorption. Because. In addition, when artificially combining the components required for the production of artificial lightweight aggregate, the price of the raw material is expensive, but there is a problem that it is very difficult to uniformly mix each component constituting the lightweight aggregate.
본 발명은 전술한 문제점들을 해결하기 위하여 안출된 것으로써, 본 발명의 목적은 소각재 형태로 배출되는 다양한 폐기물들에 경량 골재로서의 제조가 가능하도록 발포에 필요한 액상과 가스의 공급원으로 알칼리 금속 또는 알칼리토 금속의 카보네이트 화합물을 적정량 첨가함으로써 우수한 기계적 강도와 낮은 흡수율을 갖는 동시에 경제성을 갖는 폐기물을 이용한 인공 경량 골재용 조성물 및 그 제조 방법을 제공하는 것이다.The present invention has been made to solve the above problems, an object of the present invention is to supply alkali and alkaline earth as a source of liquid and gas required for foaming to enable the production of lightweight aggregate in a variety of waste discharged in the form of incineration By adding an appropriate amount of a metal carbonate compound, there is provided a composition for artificial lightweight aggregate using waste having excellent economic strength and low water absorption and economical efficiency, and a method for producing the same.
상술한 본 발명의 목적을 달성하기 위하여 본 발명에 따르면, 제지 슬러지 소각재 5∼45 중량부, 점토 40∼70 중량부 및 첨가제 3∼18 중량부로 이루어지는 폐기물을 이용한 인공 경량 골재용 조성물이 제공된다.According to the present invention for achieving the above object of the present invention, there is provided a composition for artificial lightweight aggregate using waste consisting of 5 to 45 parts by weight of paper sludge incineration ash, 40 to 70 parts by weight of clay and 3 to 18 parts by weight of additives.
바람직하게는, 상기 폐기물을 이용한 인공 경량 골재용 조성물은 석탄회 5∼35 중량부 또는 하수오니 소각재 5∼35 중량부를 더 포함할 수 있다. 상기 첨가제는 알칼리 금속 화합물 또는 알칼리토 금속 화합물이며, 탄산칼륨, 탄산나트륨,탄산칼슘 및 탄산마그네슘으로 이루어진 그룹 중에서 선택된 어느 하나로 구성된다.Preferably, the composition for artificial lightweight aggregate using the waste may further comprise 5 to 35 parts by weight of coal ash or 5 to 35 parts by weight of sewage sludge ash. The additive is an alkali metal compound or an alkaline earth metal compound, and is composed of any one selected from the group consisting of potassium carbonate, sodium carbonate, calcium carbonate and magnesium carbonate.
또한, 상술한 본 발명의 목적을 달성하기 위하여 본 발명에 따르면, 제지 슬러지 소각재 5∼45 중량부, 석탄회 5∼35 중량부 및 하수오니 소각재 5∼35 중량부로 이루어진 그룹 중에서 선택된 적어도 하나의 폐기물에 점토 40∼70 중량부 및 첨가제 3∼18 중량부를 첨가하여 혼합체를 형성하는 단계, 상기 혼합체를 필터 프레싱하여 필터 케이크를 형성하는 단계, 상기 필터 케이크를 숙성시키는 단계, 상기 필터 케이크를 1차 성형하여 제1 성형체를 형성하는 단계, 상기 제1 성형체를 2차 성형하여 제2 성형체를 형성하는 단계, 상기 제2 성형체를 건조시키는 단계, 상기 건조된 제2 성형체를 소결하여 소결체를 형성하는 단계, 그리고 상기 소결체를 냉각시키는 단계를 포함하는 폐기물을 이용한 인공 경량 골재용 조성물의 제조 방법이 제공된다. 이 경우, 상기 필터 케이크는 20∼25 퍼센트의 수분 함유량을 가지며, 상기 제1 성형체를 형성하는 단계는 상기 제1 성형체를 소정의 크기로 절단하는 단계를 더 포함한다.In addition, in order to achieve the above object of the present invention, according to the present invention, at least one waste selected from the group consisting of 5 to 45 parts by weight of paper sludge incineration ash, 5 to 35 parts by weight of coal ash and 5 to 35 parts by weight of sewage sludge incineration ash. Adding 40 to 70 parts by weight of clay and 3 to 18 parts by weight of additives to form a mixture, filtering the mixture to form a filter cake, aging the filter cake, and first forming the filter cake. Forming a first molded body, secondary molding the first molded body to form a second molded body, drying the second molded body, sintering the dried second molded body to form a sintered body, and There is provided a method for producing a composition for artificial lightweight aggregate using waste comprising the step of cooling the sintered body. In this case, the filter cake has a water content of 20 to 25 percent, and forming the first molded body further includes cutting the first molded body to a predetermined size.
바람직하게는, 상기 제2 성형체는 상기 제1 성형체를 소정의 속도로 회전하는 통을 통과시키면서 형성되며, 상기 소결체를 형성하는 단계는 1000∼1250℃의 온도에서 수행된다.Preferably, the second molded body is formed while passing through the barrel to rotate the first molded body at a predetermined speed, the step of forming the sintered body is carried out at a temperature of 1000 ~ 1250 ℃.
본 발명의 바람직한 일 실시예에 있어서, 경량 골재용 조성물을 제조하기 위하여, 소성 온도 구간에서 알칼리 카보네이트 화합물은 융제로 작용하여 액상을 형성하여, CO2분해반응에 의해 가스의 공급원이 된다. 또한, 본 발명의 다른 바람직한 실시예에 따른 경량 골재용 조성물의 제조 방법에 있어서, 석탄회, 제지 슬러지 소각재 내지 하수오니 슬러지 소각재 등과 같이 미연탄소 성분이 포함된 소각재를 첨가함으로써 산화철의 환원을 쉽게 하여 산소(O2) 가스의 발생을 촉진시킬 수 있다.In one preferred embodiment of the present invention, in order to prepare a composition for lightweight aggregate, the alkali carbonate compound acts as a flux in the baking temperature section to form a liquid phase, and becomes a source of gas by the CO 2 decomposition reaction. In addition, in the method for producing a composition for light weight aggregate according to another preferred embodiment of the present invention, by reducing the iron oxide by adding an incineration material containing unburned carbon components, such as coal ash, paper sludge incineration ash to sewage sludge incineration ash, etc. The generation of (O 2 ) gas can be promoted.
일반적으로 경량 골재의 제조에 필요한 상기 성분들을 인위적으로 조합하여 사용하는 경우에는 원료의 가격도 고가이지만, 상기 성분들을 균일하게 혼합하기가 매우 어려운 문제가 있다. 이에 비하여, 본 발명에서와 같이 적절한 폐기물을 조합하여 경량 골재를 제조하는 경우에는 원하는 성분이 이미 균일하게 혼합되어 있는 상태이며 또한 원료비가 거의 들지 않는다는 이점을 갖는다.In general, when artificially used in combination with the above components required for the production of lightweight aggregate, the price of the raw material is expensive, but there is a problem that it is very difficult to uniformly mix the components. On the other hand, in the case of producing lightweight aggregate by combining appropriate wastes as in the present invention, the desired components are already uniformly mixed and the raw material costs are almost insignificant.
본 발명에 따르면, 다양한 폐기물들을 각각의 조성에 따라 적절히 혼합하여 소결함으로써 우수한 기계적 강도와 낮은 흡수율을 갖는 경량 골재용 조성물을 제조할 수 있다. 또한, 본 발명에 따르면 적절한 폐기물의 조합을 통하여 경량 골재를 제조하기 때문에 원료비가 거의 들지 않게 되므로 경제적으로 두드러진 장점을 가진다. 더욱이, 근래 들어 심각한 환경 문제를 야기하고 있는 각종 폐기물들을 건축용 자재로 재활용할 수 있으므로 국가 경제적인 면에서도 현저한 이점을 갖는다.According to the present invention, a composition for light aggregate having excellent mechanical strength and low water absorption can be prepared by appropriately mixing and sintering various wastes according to their respective compositions. In addition, according to the present invention, since the lightweight aggregate is produced through a combination of suitable waste, the raw material cost is almost inexpensive, so it has economic advantages. Moreover, it is possible to recycle various waste materials, which are causing serious environmental problems in recent years, which has a significant advantage in terms of national economy.
이하, 본 발명의 바람직한 실시예들에 따른 폐기물을 이용한 인공 경량 골재용 조성물 및 이를 제조하는 방법을 상세하게 설명한다.Hereinafter, a composition for artificial lightweight aggregate using waste according to preferred embodiments of the present invention and a method of manufacturing the same will be described in detail.
먼저 점토와 다음의 성분을 포함하는 폐기물을 단독으로 또는 여러 가지 종류를 조합하여 경량 골재용 조성물의 제조에 필요한 적절한 조합을 만든다.First, the waste containing clay and the following components, alone or in combination of various kinds, is made an appropriate combination necessary for the production of the composition for lightweight aggregate.
다음의 표는 본 발명에 적용되는 하수오니 소각재, 석탄회 및 제지 슬러지 소각재 등의 각종 폐기물 및 점토의 화학 조성을 분석한 결과를 나타낸 것이다.The following table shows the results of analyzing the chemical composition of various wastes and clays, such as sewage sludge incineration, coal ash and paper sludge incineration applied to the present invention.
<표><Table>
상기 표에 나타낸 바와 같이, 본 발명에 적용되는 각종 폐기물은 그 화학 조성에 따라 각기 다음과 같이 분류된다.As shown in the above table, various wastes applied to the present invention are classified as follows according to their chemical composition.
또한, Fe2O3의 환원 반응을 일으킬 수 있는 미연탄소 성분을 포함하는 석탄회, 제지 슬러지 소각재 등의 폐기물이 있다. 이러한 폐기물들을 각각의 역할에 따라 상술한 바와 같이 적절하게 조합한다.In addition, there are wastes such as coal ash and paper sludge incineration ash containing unburned carbon components capable of causing a reduction reaction of Fe 2 O 3 . These wastes are properly combined as described above according to their respective roles.
대체로 하수오니 슬러지 소각재는 많은 알칼리 및 알칼리토 성분과 인 성분 등과 같이 원료의 소성 시에 액상을 형성할 수 있는 성분과 발포에 필요한 유기 물질을 함유하고 있는 동시에 미량의 미연탄소 성분을 포함하기 때문에 경량 골재용조성물의 제조에 필요한 각종 성분을 모두 포함하게 된다. 그러나, 하수오니 슬러지 소각재 자체만으로는 필요한 유리질의 양과 발포 정도를 만족시키기 어렵기 때문에 하수오니 슬러지 소각재의 조성에 따라 필요한 성분을 첨가하는 것이 바람직하다.In general, sewage sludge incinerators are light in weight because they contain components that can form a liquid phase during the firing of raw materials, such as many alkaline and alkaline earth components and phosphorus components, and organic materials necessary for foaming, and also contain trace amounts of unburned carbon. It will include all the various components necessary for the production of the aggregate composition. However, since it is difficult to satisfy the required amount of glass and the degree of foaming only by the sewage sludge incinerator itself, it is preferable to add necessary components according to the composition of the sewage sludge incinerator.
이어서, 조합된 폐기물 및 점토를 습식 혼합 방법으로 혼합하여 혼합체를 형성한다. 이 때, 균일한 기공구조를 갖는 경량 골재용 조성물을 제조하기 위하여, 볼 밀(ball mill), 튜브 밀(tube mill) 내지 교반기 등을 이용하여 각종 폐기물과 점토를 균일하게 혼합한다.The combined waste and clay are then mixed by wet mixing to form a mixture. At this time, in order to produce a composition for light weight aggregate having a uniform pore structure, various wastes and clay are uniformly mixed using a ball mill, a tube mill, a stirrer, or the like.
본 발명에 따른 경량 골재용 조성물이 균일한 내부 기공 구조를 갖기 위해서는 유기 물질의 분해 반응과 Fe2O3의 분해 반응이 균일하게 일어나야 하며, 따라서 각각의 성분이 균일하게 혼합하는 것이 필요하다.In order for the light aggregate composition according to the present invention to have a uniform internal pore structure, the decomposition reaction of the organic material and the decomposition reaction of Fe 2 O 3 must occur uniformly, and therefore, it is necessary to mix the respective components uniformly.
상기 습식 혼합 과정에 있어서, 적당량의 물에 원하는 조성으로 조합된 폐기물이 첨가된 후 볼 밀, 튜브 밀 또는 교반기를 이용하여 충분히 혼합한다. 볼 밀을 이용하는 경우에도 분쇄 효과보다는 혼합이 목적이므로 습식 혼합 공정을 약 1∼5시간 정도 수행하면 충분하다. 만일, 교반기를 이용하는 경우에는 각 폐기물 및 점토의 균일한 혼합을 위해서는 볼 밀의 경우 보다 긴 시간이 필요하다.In the wet mixing process, the waste combined with the desired composition is added to the appropriate amount of water and then mixed sufficiently using a ball mill, a tube mill, or an agitator. In the case of using a ball mill, it is sufficient to perform the wet mixing process for about 1 to 5 hours because the mixing is rather than the grinding effect. If a stirrer is used, a longer time is required for a ball mill for uniform mixing of each waste and clay.
다음에, 상기 혼합체를 필터 프레스(filter press) 단계를 거쳐 혼합체 내부의 수분을 제거함으로써 필터 케이크(filter cake)를 형성한다. 이러한 필터 프레싱(pressing) 과정을 거친 필터 케이크는 약 20∼25 퍼센트(%) 정도의 수분 함유량을 갖게 된다.Next, the mixture is subjected to a filter press step to remove water inside the mixture to form a filter cake. This filter pressing process has a water content of about 20 to 25 percent (%).
계속하여, 에이징(aging) 과정을 통하여 상기 필터 케이크를 약 1∼3일 동안 숙성함으로써, 상기 필터케이크 내의 수분 분포를 균일하게 조절한 후, 진공 토련기를 이용하여 상기 숙성된 필터 케이크를 1차 성형하여 제1 성형체를 형성한 후, 상기 제1 성형체를 소정의 크기로 절단한다.Subsequently, the filter cake is aged through the aging process for about 1 to 3 days to uniformly adjust the water distribution in the filter cake, and then the aged filter cake is first molded using a vacuum grinder. After forming the first molded body, the first molded body is cut into a predetermined size.
다음에, 상기 제1 성형체를 조립기를 이용하여 경량 골재로서 적합하도록 대체로 구형의 형상을 갖는 제2 성형체로 2차 성형한다. 즉, 제1 성형체를 일정한 속도로 회전하는 통을 통과시켜 구형에 가까운 형태로 만들게 된다. 이 경우, 제2 성형체의 형상이 반드시 구형일 필요는 없으며, 각진 부분이 없는 형태를 가지면 경량 골재로 적용되기에 충분하다.Next, the first molded body is secondary molded into a second molded body having a generally spherical shape so as to be suitable as a lightweight aggregate using a granulator. In other words, the first molded body is made to pass through a cylinder rotating at a constant speed to form a spherical shape. In this case, the shape of the second molded body does not necessarily have to be spherical, and having a shape without angled portions is sufficient to be applied as a lightweight aggregate.
계속하여, 상기 제2 성형체를 오븐에 투입한 다음, 약 100∼500℃ 정도의 온도에서 약 0.5∼3 시간 동안 건조하여 건조체를 형성한다. 이 때, 제2 성형체의 건조 시간은 건조 온도와 제2 성형체의 사이즈에 의해 결정되며, 크기가 작은 성형체의 경우에는 건조 시간이 짧아진다. 바람직하게는, 마이크로파(microwave)를 제2 성형체에 조사하여 성형체를 건조하는 시간을 단축할 수 있다. 또한, 후술하는 소성 과정에서 사용되는 로터리 킬른(rotary kiln)으로부터 발생되는 폐열을 이용하여 제2 성형체를 건조시킬 수도 있다.Subsequently, the second molded body is put into an oven, and then dried at a temperature of about 100 to 500 ° C. for about 0.5 to 3 hours to form a dried body. At this time, the drying time of the second molded body is determined by the drying temperature and the size of the second molded body, and in the case of a small molded body, the drying time is shortened. Preferably, the microwave can be irradiated to the second molded article to shorten the time for drying the molded article. In addition, the second molded body may be dried using waste heat generated from a rotary kiln used in the firing process described later.
다음에, 상기 건조체를 로터리 킬른에 투입한 후, 소성하여 소결체를 형성한다. 이 때, 상기 로터리 킬른 내부의 최고 온도는 약 1050∼1200℃ 정도이며, 상기 건조체는 로터리 킬른의 투입구로부터 로터리 킬른 내부의 최고 온도범위까지 약 1∼4 미터/분 정도의 속도로 이동한다. 바람직하게는, 상기 로터리 킬른에 투입되는 건조체의 양은 로터리 킬른의 단면적을 기준으로 하여 약 5∼20% 정도가 되도록 조절한다.Next, the dried body is put into a rotary kiln, and then fired to form a sintered body. At this time, the maximum temperature inside the rotary kiln is about 1050 to 1200 ℃, the drying body moves at a speed of about 1 to 4 meters / min from the inlet of the rotary kiln to the maximum temperature range inside the rotary kiln. Preferably, the amount of the dry matter added to the rotary kiln is adjusted to be about 5 to 20% based on the cross-sectional area of the rotary kiln.
마지막으로, 소성이 끝난 소결체를 냉각기를 이용하여 냉각시킴으로써 경량 골재용 조성물을 완성한다. 이 경우, 상기 소결체는 냉각기를 통과하면서 약 400∼500℃ 정도의 온도로 서서히 냉각된다.Finally, the sintered body after baking is cooled using a cooler to complete the composition for lightweight aggregate. In this case, the sintered compact is gradually cooled to a temperature of about 400 to 500 ° C. while passing through the cooler.
상술한 바에 따라 제조된 폐기물을 이용한 인공 경량 골재용 조성물에 대하여 측정된 흡수율, 비중 및 강도 등의 특성은 다음과 같다.Properties such as absorption, specific gravity, and strength measured for the composition for artificial lightweight aggregate using the waste prepared according to the above are as follows.
먼저, 제지 슬러지 소각재 및 점토가 주성분으로 포함된 경량 골재용 조성물들은 약 0.91∼10.01 퍼센트까지 비교적 넓은 범위의 흡수율을 보이고, 부피 비중은 약 1.01∼1.94 정도이다.First, the composition for light weight aggregates containing paper sludge incineration ash and clay as a main component shows a relatively wide range of absorption rate from about 0.91 to 10.01 percent, and the volume specific gravity is about 1.01 to 1.94.
다음으로, 석탄회, 제지 슬러지 소각재 및 점토가 주성분으로 포함된 경량 골재용 조성물들은 약 0.81∼7.0 퍼센트까지의 흡수율을 보이고, 부피 비중은 약 0.77∼2.10 정도이다.Next, the light aggregate composition containing coal ash, paper sludge incineration ash and clay as a main component shows an absorption rate of about 0.81 to 7.0 percent, the volume specific gravity is about 0.77 to 2.10.
하수오니 소각재, 제지 슬러지 소각재 및 점토를 주성분으로 하는 경량 골재용 조성물은 약 5.6∼11.2 퍼센트까지의 흡수율을 보이며, 부피 비중은 약 0.83∼1.99 정도 이다.The composition for light weight aggregates consisting mainly of sewage sludge ash, paper sludge incineration ash and clay has an absorption rate of about 5.6 to 11.2 percent, and a volume specific gravity of about 0.83 to 1.99.
마지막으로, 하수오니 소각재, 석탄회, 제지 슬러지 소각재 및 점토를 모두 포함하는 조성물들은 약 4.10∼7.38% 정도의 흡수율, 약 0.82∼1.85 정도의 부피 비중을 가진다.Finally, compositions comprising sewage sludge ash, coal ash, paper sludge incineration ash and clays have an absorption of about 4.10 to 7.38% and a volume specific gravity of about 0.82 to 1.85.
따라서, 본 발명에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 골재로서 요구되는 기준을 충분히 만족시키며, 특히 기계적인 강도 및 흡수율은 종래의 인공 경량 골재에 비하여 매우 우수한 것으로 평가된다.Therefore, the composition for artificial lightweight aggregate using waste according to the present invention satisfies the criteria required as aggregate sufficiently, and in particular, the mechanical strength and water absorption are evaluated to be very superior to the conventional artificial lightweight aggregate.
이하, 첨부된 도면들을 참조하여 본 발명의 바람직한 실험예들에 따른 폐기물을 이용한 인공 경량 골재용 조성물 및 그 제조 방법을 상세하게 설명하지만 본 발명이 하기의 실험예들에 의하여 제한되거나 한정되는 것은 아니다.Hereinafter, with reference to the accompanying drawings will be described in detail the composition for the artificial lightweight aggregate using the waste according to the preferred experimental examples of the present invention and its manufacturing method in detail, but the present invention is not limited or limited by the following experimental examples. .
실험예 1Experimental Example 1
상기 표의 화학 조성에 따라 폐기물인 제지 슬러지 소각재 40 중량부 및 점토 60 중량부에 첨가제로서 탄산칼륨(K2CO3) 5 중량부를 첨가한 다음, 이들을 습식 혼합하여 혼합체를 제조하였다. 이 경우, 상기 제지 슬러지 소각재에 대하여 점토를 첨가한 다음, 볼 밀을 사용하여 약 3시간 정도 습식 혼합함으로써 제지 슬러지 소각재와 점토가 균일하게 혼합된 혼합체를 제조하였다. 상기 습식 혼합 공정은 제지 슬러지 소각재와 같은 각종 폐기물을 점토와 균일하게 혼합하는 공정으로써, 후에 균일한 기공 구조를 갖는 경량 골재용 조성물을 제조하기 위해서는 필수적으로 요구되는 공정이다.According to the chemical composition of the above table, 5 parts by weight of potassium carbonate (K 2 CO 3 ) was added as an additive to 40 parts by weight of paper sludge incineration ash and 60 parts by weight of clay, followed by wet mixing to prepare a mixture. In this case, clay was added to the paper sludge incineration material, and then wet mixing was performed for about 3 hours using a ball mill to prepare a mixture of paper sludge incineration material and clay uniformly. The wet mixing process is a process of uniformly mixing various wastes such as paper sludge incineration ash with clay, and is a process required to produce a composition for light weight aggregate having a uniform pore structure later.
이어서, 상기 혼합체를 필터 프레싱하여 필터 케이크를 형성하였으며, 필터 프레싱을 거친 필터 케이크는 약 22% 정도의 함수량을 나타내었다.Subsequently, the mixture was filter pressed to form a filter cake, and the filter cake passed through the filter showed a water content of about 22%.
다음에, 상기 필터 케이크를 약 2일 정도 숙성(aging)함으로써, 필터 케이크 내의 수분 분포를 균일하게 한 후, 진공 토련기를 이용하여 상기 필터 케이크를 소정의 형상으로 1차 성형하여 제1 성형체를 형성하였다.Next, by aging the filter cake for about two days to uniformize the distribution of moisture in the filter cake, the filter cake is first molded into a predetermined shape using a vacuum grinder to form a first molded body. It was.
계속하여, 상기 제1 성형체를 적절한 사이즈로 절단한 다음, 조립기를 사용하여 2차 성형함으로써 대체로 구형의 형상을 갖는 제2 성형체를 형성하였다.Subsequently, the first molded body was cut to an appropriate size, and then second molded using a granulator to form a second molded body having a generally spherical shape.
이어서, 상기 제2 성형체를 오븐 내에 투입하여 약 300℃의 온도에서 약 1시간 30분 정도 건조시킨 후, 건조된 제2 성형체를 로타리 킬른 내에 투입하여 약 1200℃ 정도의 온도에서 제2 성형체를 약 2미터/분 정도의 속도로 이동시키면서 소결하여 소결체를 형성하였다. 이 때, 상기 제2 성형체가 로타리 킬른의 투입구로부터 유출구까지 약 60분 동안 이동하면서 소결된다.Subsequently, the second molded body was put in an oven and dried at a temperature of about 300 ° C. for about 1 hour and 30 minutes, and then, the dried second molded body was put in a rotary kiln to produce a second molded body at a temperature of about 1200 ° C. Sintering was carried out while moving at a speed of about 2 meters / minute to form a sintered body. At this time, the second molded body is sintered while moving from the inlet of the rotary kiln to the outlet for about 60 minutes.
마지막으로, 상기 소결체를 냉각기를 이용하여 약 450℃의 온도로 서서히 냉각시킴으로써, 폐기물을 이용한 인공 경량 골재용 조성물을 완성하였다.Finally, the sintered compact was gradually cooled to a temperature of about 450 ° C. using a cooler to complete a composition for artificial lightweight aggregate using waste.
본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물을 특성을 측정한 결과, 부피 비중은 1.94 정도이다.As a result of measuring the properties of the composition for artificial lightweight aggregate using waste according to the present experimental example, the volume specific gravity is about 1.94.
실험예 2Experimental Example 2
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합한 다음, 첨가제로 탄산칼륨 5 중량부를 첨가하여 습식 혼합함으로써 혼합체를 제조하였다.A mixture was prepared by combining 30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, and then 5 parts by weight of potassium carbonate as an additive, followed by wet mixing.
본 실험예에 있어서, 소성 공정을 포함한 경량 골재용 조성물의 제조 공정은전술한 실험예 1과 동일하다. 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 2.10 정도의 부피 비중을 가진다.In this experiment example, the manufacturing process of the composition for light weight aggregates containing a baking process is the same as that of Experiment example 1 mentioned above. Composition for artificial lightweight aggregate using waste according to the present experimental example has a volume specific gravity of about 2.10.
실험예 3Experimental Example 3
하수오니 소각재 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산칼륨 5 중량부를 첨가하고 습식 혼합하여 혼합체를 제조하였다.30 parts by weight of sewage sludge incinerator, 20 parts by weight of paper sludge incinerator and 50 parts by weight of clay were combined, and then 5 parts by weight of potassium carbonate was added as an additive and wet mixed to prepare a mixture.
본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물의 제조 공정은 전술한 실험예 1과 동일하며, 1.99 정도의 부피 비중을 가진다.The manufacturing process of the composition for artificial lightweight aggregate using waste according to the present experimental example is the same as that of Experimental Example 1 described above, and has a volume specific gravity of about 1.99.
실험예 4Experimental Example 4
제지 슬러지 소각재 40 중량부 및 점토 60 중량부를 조합한 후, 첨가제로 탄산나트륨(Na2CO3) 5 중량부를 첨가하고 습식 혼합하여 혼합체를 제조하였다.40 parts by weight of paper sludge incineration and 60 parts by weight of clay were combined, and then 5 parts by weight of sodium carbonate (Na 2 CO 3 ) was added as an additive and wet mixed to prepare a mixture.
본 실험예에 따른 경량 골재용 조성물의 제조 공정은 전술한 실험예 1과 동일하며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물의 부피 비중은 1.75 정도이다.The manufacturing process of the composition for lightweight aggregate according to the present experimental example is the same as that of Experiment 1 described above, and the volume specific gravity of the composition for artificial lightweight aggregate using waste according to the present example is about 1.75.
실험예 5Experimental Example 5
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합하고, 첨가제로 탄산나트륨 5 중량부를 첨가한 다음, 습식 혼합하여 혼합체를 제조하였다.30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, and 5 parts by weight of sodium carbonate was added as an additive, followed by wet mixing to prepare a mixture.
본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물의 제조 공정은 전술한 실험예 1과 동일하며, 1.90 정도의 부피 비중을 갖는 것으로 측정되었다.The manufacturing process of the composition for artificial lightweight aggregate using waste according to the present experimental example was the same as that of Experimental Example 1 described above, and was measured to have a specific gravity of about 1.90.
실험예 6Experimental Example 6
하수오니 소각재 20 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부를 조합하고, 탄산나트륨 5 중량부를 첨가한 다음, 습식 혼합하여 혼합체를 제조하였다.20 parts by weight of sewage incineration ash, 30 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, 5 parts by weight of sodium carbonate was added, followed by wet mixing to prepare a mixture.
본 실험예에 따른 경량 골재용 조성물의 제조 공정은 전술한 실험예 1과 동일하며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.67 정도의 부피 비중을 갖는 것으로 측정되었다.The manufacturing process of the composition for light weight aggregate according to the present experimental example is the same as that of Experimental Example 1 described above, and the composition for artificial light weight aggregate using waste according to the present example was measured to have a specific gravity of about 1.67.
실험예 7Experimental Example 7
석탄회 10 중량부, 제지 슬러지 소각재 40 중량부 및 점토 50 중량부를 조합한 다음, 첨가제로 탄산칼륨 10 중량부를 첨가하고 습식 혼합하여 혼합체를 제조하였다.10 parts by weight of coal ash, 40 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, and then 10 parts by weight of potassium carbonate was added as an additive and wet mixed to prepare a mixture.
본 실험예에 있어서, 소성 공정은 1100℃의 온도에서 수행되었으며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.63 정도의 부피 비중을 갖는 것으로 측정되었다.In this Experimental Example, the firing process was carried out at a temperature of 1100 ℃, it was measured that the composition for artificial lightweight aggregate using waste according to this Experimental Example has a volume specific gravity of about 1.63.
실험예 8Experimental Example 8
석탄회 20 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부를 조합한 다음, 첨가제로 탄산칼륨 10 중량부를 첨가하고 습식 혼합하여 혼합체를 제조하였다.20 parts by weight of coal ash, 30 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, and then 10 parts by weight of potassium carbonate was added as an additive and wet mixed to prepare a mixture.
본 실험예에 따른 경량 골재용 조성물의 제조 방법은 소성 공정이 1100℃에서 수행되는 점을 제외하면 전술한 실험예 1의 경우와 동일하며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.89 정도의 부피 비중을 갖는 것으로 측정되었다.The manufacturing method of the composition for lightweight aggregate according to the present experimental example is the same as that of Experimental Example 1, except that the firing process is performed at 1100 ° C., and the composition for artificial lightweight aggregate using waste according to the present example It was measured to have a bulk specific gravity of about 1.89.
실험예 9Experimental Example 9
석탄회 10 중량부, 하수오니 소각재 20 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합하고 탄산칼륨 10 중량부를 첨가하여 혼합체를 제조하였다.A mixture was prepared by combining 10 parts by weight of coal ash, 20 parts by weight of sewage sludge incineration ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, and adding 10 parts by weight of potassium carbonate.
본 실험예에 있어서, 소성 공정은 1100℃에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.82 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at 1100 ° C, and the composition for artificial lightweight aggregate using waste according to this experimental example was measured to have a volume specific gravity of about 0.82.
실험예 10Experimental Example 10
석탄회 10 중량부, 제지 슬러지 소각재 30 중량부 및 점토 60 중량부를 조합하고 탄산나트륨 10 중량부를 첨가하였다.10 parts by weight of coal ash, 30 parts by weight of paper sludge incineration ash and 60 parts by weight of clay were combined and 10 parts by weight of sodium carbonate was added.
본 실험예에 있어서, 소성 공정은 1100℃에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.45 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at 1100 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.45.
실험예 11Experimental Example 11
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합하고, 탄산나트륨 10 중량부를 첨가하였다.30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, and 10 parts by weight of sodium carbonate was added.
본 실험예에 있어서, 소성 공정은 1100℃에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.19 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at 1100 ° C, the composition for artificial lightweight aggregate using waste according to this experimental example was measured to have a specific gravity of about 1.19.
실험예 12Experimental Example 12
하수오니 소각재 20 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부에 탄산나트륨 10 중량부를 첨가하였다.10 parts by weight of sodium carbonate was added to 20 parts by weight of sewage sludge ash, 30 parts by weight of paper sludge incineration ash, and 50 parts by weight of clay.
본 실험예에 있어서, 소성 공정은 1100℃에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.97 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at 1100 ° C, the composition for artificial lightweight aggregate using waste according to this experimental example was measured to have a volume specific gravity of about 0.97.
실험예 13Experimental Example 13
제지 슬러지 소각재 40 중량부 및 점토 60 중량부를 조합한 다음, 첨가제로 탄산칼륨 15 중량부를 첨가하여 혼합체를 제조하였다.A mixture was prepared by combining 40 parts by weight of paper sludge incinerator and 60 parts by weight of clay, and then adding 15 parts by weight of potassium carbonate as an additive.
본 실험예에 있어서, 소성 공정은 1050℃에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.11 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at 1050 ° C, the composition for artificial lightweight aggregate using waste according to this experimental example was measured to have a volume specific gravity of about 1.11.
실험예 14Experimental Example 14
하수오니 소각재 20 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부에 탄산나트륨 15 중량부를 첨가하였다.15 parts by weight of sodium carbonate was added to 20 parts by weight of sewage sludge ash, 30 parts by weight of paper sludge incineration ash, and 50 parts by weight of clay.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.07 정도의 부피 비중을 갖는 것으로 측정되었다.In the present experimental example, the firing process is carried out at a temperature of about 1050 ℃, the composition for artificial lightweight aggregate using waste according to this experimental example was measured to have a specific gravity of about 1.07.
실험예 15Experimental Example 15
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산칼륨 15 중량부를 첨가하여 혼합체를 제조하였다.After mixing 30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, 15 parts by weight of potassium carbonate was added as an additive to prepare a mixture.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.16 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1050 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.16.
실험예 16Experimental Example 16
제지 슬러지 소각재 40 중량부 및 점토 60 중량부를 조합한 다음, 첨가제로 탄산나트륨 15 중량부를 첨가하여 혼합체를 제조하였다.A mixture was prepared by combining 40 parts by weight of paper sludge incineration ash and 60 parts by weight of clay, and then adding 15 parts by weight of sodium carbonate as an additive.
본 실험예에 있어서, 소성 공정은 1050℃에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.97 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at 1050 ° C, the composition for artificial lightweight aggregate using waste according to this experimental example was measured to have a volume specific gravity of about 0.97.
실험예 17Experimental Example 17
석탄회 10 중량부, 하수오니 소각재 30 중량부, 제지 슬러지 소각재 10 중량부 및 점토 50 중량부에 탄산나트륨 15 중량부를 첨가하였다.15 parts by weight of sodium carbonate was added to 10 parts by weight of coal ash, 30 parts by weight of sewage sludge incinerator, 10 parts by weight of paper sludge incinerator, and 50 parts by weight of clay.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.84 정도의 부피 비중을 가진다.In this Experimental Example, the firing process is carried out at a temperature of about 1050 ℃, the composition for artificial lightweight aggregate using waste according to this Experimental Example has a volume specific gravity of about 0.84.
실험예 18Experimental Example 18
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부에 탄산나트륨 15 중량부를 첨가하였다.15 parts by weight of sodium carbonate was added to 30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash, and 50 parts by weight of clay.
본 실험예에 있어서, 소성 공정은 1050℃에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.90 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at 1050 ℃, the composition for artificial lightweight aggregate using waste according to this experimental example was measured to have a volume specific gravity of about 0.90.
실험예 19Experimental Example 19
제지 슬러지 소각재 40 중량부 및 점토 60 중량부를 조합한 후, 첨가제로 탄산칼슘(CaCO3) 5 중량부를 첨가하였다.After combining 40 parts by weight of papermaking sludge incinerator and 60 parts by weight of clay, 5 parts by weight of calcium carbonate (CaCO 3 ) was added as an additive.
본 실험예에 있어서, 소성 공정은 1200℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.34 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1200 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.34.
실험예 20Experimental Example 20
석탄회 10 중량부, 하수오니 소각재 10 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산칼슘 5 중량부를 첨가하였다.10 parts by weight of coal ash, 10 parts by weight of sewage sludge incineration ash, 30 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, and then 5 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1200℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.85 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1200 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.85.
실험예 21Experimental Example 21
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 60 중량부를 조합한 후, 첨가제로 탄산칼슘 5 중량부를 첨가하였다.After combining 30 parts by weight of coal ash, 20 parts by weight of papermaking sludge incinerator and 60 parts by weight of clay, 5 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1200℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.84 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1200 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.84.
실험예 22Experimental Example 22
하수오니 소각재 10 중량부, 제지 슬러지 소각재 30 중량부 및 점토 60 중량부를 조합한 후, 첨가제로 탄산칼슘 5 중량부를 첨가하였다.After combining 10 parts by weight of sewage sludge ash, 30 parts by weight of paper sludge incinerator and 60 parts by weight of clay, 5 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1200℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.72 정도의 부피 비중을 갖는 것으로 측정되었다.In this Experimental Example, the firing process is carried out at a temperature of about 1200 ℃, the composition for artificial lightweight aggregate using waste according to this Experimental Example was measured to have a specific gravity of about 1.72.
실험예 23Experimental Example 23
하수오니 소각재 20 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부를 조합한 후, 탄산칼슘 5 중량부를 첨가하였다.20 parts by weight of sewage sludge ash, 30 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, and then 5 parts by weight of calcium carbonate was added.
본 실험예에 있어서, 소성 공정은 1200℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.70 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1200 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.70.
실험예 24Experimental Example 24
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합한 후, 탄산칼슘 5 중량부를 첨가하여 혼합체를 제조하였다.30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, and then 5 parts by weight of calcium carbonate was added to prepare a mixture.
본 실험예에 있어서, 소성 공정은 1200℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.99 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1200 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.99.
실험예 25Experimental Example 25
석탄회 10 중량부, 제지 슬러지 소각재 40 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산칼슘 10 중량부를 첨가하였다.After combining 10 parts by weight of coal ash, 40 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, 10 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1100℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.77 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1100 ℃, it was measured that the composition for artificial lightweight aggregate using waste according to this experimental example has a volume specific gravity of about 0.77.
실험예 26Experimental Example 26
하수오니 소각재 20 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산칼슘 10 중량부를 첨가하였다.After combining 20 parts by weight of sewage sludge ash, 30 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, 10 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1100℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.97 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1100 ℃, it was measured that the composition for artificial lightweight aggregate using waste according to this experimental example has a volume specific gravity of about 0.97.
실험예 27Experimental Example 27
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산칼슘 10 중량부를 첨가하였다.After combining 30 parts by weight of coal ash, 20 parts by weight of papermaking sludge incinerator and 50 parts by weight of clay, 10 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1100℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.31 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1100 ℃, it was measured that the composition for artificial lightweight aggregate using waste according to this experimental example has a volume specific gravity of about 1.31.
실험예 28Experimental Example 28
제지 슬러지 소각재 40 중량부 및 점토 60 중량부를 조합한 후, 첨가제로 탄산마그네슘(MgCO3) 10 중량부를 첨가하였다.After combining 40 parts by weight of papermaking sludge incinerator and 60 parts by weight of clay, 10 parts by weight of magnesium carbonate (MgCO 3 ) was added as an additive.
본 실험예에 있어서, 소성 공정은 1100℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.71 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1100 ℃, it was measured that the composition for artificial lightweight aggregate using waste according to this experimental example has a volume specific gravity of about 0.71.
실험예 29Experimental Example 29
하수오니 소각재 20 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산마그네슘 10 중량부를 첨가하였다.After combining 20 parts by weight of sewage sludge ash, 30 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, 10 parts by weight of magnesium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1100℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.83 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1100 ℃, it was measured that the composition for artificial lightweight aggregate using the waste according to this experimental example has a volume specific gravity of about 0.83.
실험예 30Experimental Example 30
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산마그네슘 10 중량부를 첨가하였다.After combining 30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, 10 parts by weight of magnesium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1100℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 0.94 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1100 ℃, it was measured that the composition for artificial lightweight aggregate using waste according to this experimental example has a volume specific gravity of about 0.94.
실험예 31Experimental Example 31
제지 슬러지 소각재 40 중량부 및 점토 60 중량부를 조합한 후, 첨가제로 탄산칼슘 15 중량부를 첨가하였다.After combining 40 parts by weight of papermaking sludge incinerator and 60 parts by weight of clay, 15 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.01 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1050 ℃, it was measured that the composition for artificial lightweight aggregate using waste according to this experimental example has a volume specific gravity of about 1.01.
실험예 32Experimental Example 32
하수오니 소각재 20 중량부, 제지 슬러지 소각재 30 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산칼슘 15 중량부를 첨가하였다.20 parts by weight of sewage sludge ash, 30 parts by weight of paper sludge incineration ash and 50 parts by weight of clay were combined, and then 15 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.20 정도의 부피 비중을 갖는 것으로 측정되었다.In this Experimental Example, the firing process is carried out at a temperature of about 1050 ℃, the composition for artificial lightweight aggregate using waste according to this Experimental Example was measured to have a specific gravity of about 1.20.
실험예 33Experimental Example 33
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산칼슘 15 중량부를 첨가하였다.After combining 30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, 15 parts by weight of calcium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.31 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1050 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.31.
실험예 34Experimental Example 34
제지 슬러지 소각재 40 중량부 및 점토 60 중량부를 조합한 후, 첨가제로 탄산마그네슘 15 중량부를 첨가하였다.After combining 40 parts by weight of paper sludge incinerator and 60 parts by weight of clay, 15 parts by weight of magnesium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.27 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1050 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.27.
실험예 35Experimental Example 35
석탄회 30 중량부, 하수오니 소각재 20 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산마그네슘 15 중량부를 첨가하였다.After combining 30 parts by weight of coal ash, 20 parts by weight of sewage sludge ash and 50 parts by weight of clay, 15 parts by weight of magnesium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.32 정도의 부피 비중을갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1050 ℃, the composition for artificial lightweight aggregate using the waste according to this experimental example was measured to have a specific gravity of about 1.32.
실험예 36Experimental Example 36
석탄회 30 중량부, 제지 슬러지 소각재 20 중량부 및 점토 50 중량부를 조합한 후, 첨가제로 탄산마그네슘 15 중량부를 첨가하였다.After combining 30 parts by weight of coal ash, 20 parts by weight of paper sludge incineration ash and 50 parts by weight of clay, 15 parts by weight of magnesium carbonate was added as an additive.
본 실험예에 있어서, 소성 공정은 1050℃ 정도의 온도에서 수행되며, 본 실험예에 따른 폐기물을 이용한 인공 경량 골재용 조성물은 1.45 정도의 부피 비중을 갖는 것으로 측정되었다.In this experimental example, the firing process is carried out at a temperature of about 1050 ℃, it was measured that the composition for artificial lightweight aggregate using waste according to this experimental example has a volume specific gravity of about 1.45.
본 발명에 따르면, 다양한 폐기물들을 각각의 조성에 따라 적절히 혼합하여 성형, 건조 및 소결함으로써 우수한 기계적 강도와 낮은 흡수율을 갖는 경량 골재용 조성물을 제조할 수 있다. 또한, 본 발명에 따르면 적절한 폐기물의 조합을 통하여 경량 골재를 제조하기 때문에 원료비가 현저하게 절감하여 근래 들어 심각한 환경 문제를 야기하고 있는 각종 폐기물들을 건축용 자재로 재활용할 수 있으므로 국가 경제적인 면에서도 현저한 이점을 갖는다.According to the present invention, it is possible to prepare a composition for lightweight aggregate having excellent mechanical strength and low water absorption by forming, drying and sintering by appropriately mixing various wastes according to their respective compositions. In addition, according to the present invention, since the lightweight aggregate is manufactured through a suitable waste combination, the raw material cost is significantly reduced, and various wastes, which are causing serious environmental problems in recent years, can be recycled as building materials. Has
상기에서는 본 발명의 바람직한 실험예들을 참조하여 설명하였지만 해당 기술분야의 숙련된 당업자라면 하기의 특허 청구의 범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.Although described above with reference to the preferred experimental examples of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention described in the claims below. It will be appreciated.
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| KR100568931B1 (en) * | 2004-08-23 | 2006-04-07 | 한국건설기술연구원 | High performance lightweight artificial soil using sludge and its manufacturing method |
| KR100662797B1 (en) * | 2005-08-17 | 2006-12-28 | 경기대학교 산학협력단 | Manufacturing method of artificial lightweight aggregate using raw sewage sludge |
| KR100735030B1 (en) * | 2005-12-22 | 2007-07-03 | 한국건설기술연구원 | Artificial soil composition for greening using high temperature molten salt and its manufacturing method |
| KR100903604B1 (en) * | 2008-09-18 | 2009-06-18 | 유종희 | Composition of Soil Recovery Red Waste Using Wastewater Treatment Sludge |
| KR101014868B1 (en) * | 2009-11-26 | 2011-02-15 | 전남대학교산학협력단 | Cementium magnesium-based alkali active binder, Cementium magnesium-based alkali active mortar comprising the binder, concrete and concrete secondary products |
| KR101014869B1 (en) * | 2010-01-13 | 2011-02-15 | 전남대학교산학협력단 | Cemental alkali active binder containing a composite alkali activator, mortar or concrete using the same |
| US8232220B2 (en) | 2006-04-28 | 2012-07-31 | Lee Kang Hoon | Method for manufacturing an artificial lightweight aggregate containing bottom ash |
| RU2463270C1 (en) * | 2011-05-27 | 2012-10-10 | Юлия Алексеевна Щепочкина | Crude mixture for making artificial porous aggregate |
| RU2464244C1 (en) * | 2011-05-27 | 2012-10-20 | Юлия Алексеевна Щепочкина | Mixture for producing aggloporite |
| US8617307B2 (en) | 2009-01-30 | 2013-12-31 | Industry Foundation Of Chonnam National University | Alkali-activated binder, alkali-activated mortar, concrete products and wet red clay paving material using binder |
| RU2530291C1 (en) * | 2013-07-08 | 2014-10-10 | Юлия Алексеевна Щепочкина | Raw mixture for production of shell of coarse aggregate used in decoration of flower gardens and flowerbeds |
| KR101476739B1 (en) * | 2013-02-28 | 2014-12-29 | 강릉원주대학교산학협력단 | Method for fabrication of light weight aggregate |
| KR101530363B1 (en) * | 2013-09-06 | 2015-06-22 | 주식회사 포이엔 | Method for manufacturing lightweight aggregate containing carbon dioxide and lightweight aggregate manufactured thereby |
| KR102315058B1 (en) * | 2020-12-04 | 2021-10-21 | 재단법인 서울특별시 서울기술연구원 | Manufacturing method for pottery, ceramic clay used the same and manufacturing method for painted pottery using wastewater sludge incineration ash |
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| KR100568931B1 (en) * | 2004-08-23 | 2006-04-07 | 한국건설기술연구원 | High performance lightweight artificial soil using sludge and its manufacturing method |
| KR100662797B1 (en) * | 2005-08-17 | 2006-12-28 | 경기대학교 산학협력단 | Manufacturing method of artificial lightweight aggregate using raw sewage sludge |
| KR100735030B1 (en) * | 2005-12-22 | 2007-07-03 | 한국건설기술연구원 | Artificial soil composition for greening using high temperature molten salt and its manufacturing method |
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| RU2463270C1 (en) * | 2011-05-27 | 2012-10-10 | Юлия Алексеевна Щепочкина | Crude mixture for making artificial porous aggregate |
| RU2464244C1 (en) * | 2011-05-27 | 2012-10-20 | Юлия Алексеевна Щепочкина | Mixture for producing aggloporite |
| KR101476739B1 (en) * | 2013-02-28 | 2014-12-29 | 강릉원주대학교산학협력단 | Method for fabrication of light weight aggregate |
| RU2530291C1 (en) * | 2013-07-08 | 2014-10-10 | Юлия Алексеевна Щепочкина | Raw mixture for production of shell of coarse aggregate used in decoration of flower gardens and flowerbeds |
| KR101530363B1 (en) * | 2013-09-06 | 2015-06-22 | 주식회사 포이엔 | Method for manufacturing lightweight aggregate containing carbon dioxide and lightweight aggregate manufactured thereby |
| KR102315058B1 (en) * | 2020-12-04 | 2021-10-21 | 재단법인 서울특별시 서울기술연구원 | Manufacturing method for pottery, ceramic clay used the same and manufacturing method for painted pottery using wastewater sludge incineration ash |
| DE112022000201B4 (en) | 2021-11-17 | 2024-07-25 | Guangdong Brunp Recycling Technology Co., Ltd. | Process for producing a refractory material from waste battery residues and use of the refractory material |
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