• Title/Summary/Keyword: 석분 슬러지

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The Strength Properties of Concrete Used Stone Powder Sludge as Siliceous Material (실리카질 재료로서 석분 슬러지를 사용한 콘크리트의 강도 특성)

  • Jeong Ji Yong;Choi Sun Mi;Kawg Eun Gu;Choi Se Jin;Lee Seong Yeon;Kim Jin Man
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2005.05a
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    • pp.85-88
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    • 2005
  • The stone powder sludge occurred at aggregate production process is classified the specified waste, so it is disposed by appropriate method. But the problems of the shortage of the disposal-site, the environment pollution, and the increase of disposal cost can be occurred in handling process, therefore the stone powder sludge is required the development of recycling technique. The stone powder sludge includes SiO2 of about $63\%$. This characteristic is important at the production of hardened specimens under condition of hydro-thermal reaction. In this study, we investigated the strength properties of concrete used stone powder sludge as siliceous material. The test results under condition of hydro-thermal reaction shows the two main facts. The first, the stone powder sludge is affected to fluidity because the surface of the stone powder sludge has characteristics of flakily and angularity. The second, weight content of the stone powder sludge, is not effective factor to the properties of strength.

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A Flexural Strength Properties of Extruding Concrete Panel Using Stone Powder Sludge (석분슬러지를 이용한 압출성형 콘크리트 패널의 휨강도 특성)

  • Choi Hun-Gug;Jung Eun-Hye;Kawg Eun-Gu;Kang Cheol;Seo Jung-Pil;Kim Jin-Man
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2006.05a
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    • pp.115-118
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    • 2006
  • Nowadays the using of concrete is generalized, and construction material is demanded to be lightweight according to increasing the height and capacity of buildings. Therefore, it needs to develop the products having the great quality and various performance. Extruding concrete panel made of cement, silica source, and fiber, and it is a good lightweight concrete material in durability and thermostable. The silica of important ingredient is natural material with hish SiO2 contents and difficult in supply because of conservation of environment. On the other hand, the stone powder sludge discharged about 20-30% at making process of crushed fine aggregate and it is wasted. The stone powder sludge is valuable instead of silica ole because the stone powder sludge includes water of about 20-60%, SiO2 of about 64% and it has fine particles. This experiment is on the properties of extruding concrete panel using the stone powder sludge use instead of silica. From this experiment, we find that it is possible to replace the silica as stone power sludge up to 50%,

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The Fundamental study on Development of Ceiling materials using the Zeolite and Stone dust, Sludge (제올라이트와 석분 및 슬러지를 이용한 천장재의 개발에 관한 기초적 연구)

  • 임병호;류희정;최영준;이승조;김태곤;박정민;김화중
    • Proceedings of the Korea Concrete Institute Conference
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    • 1997.10a
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    • pp.777-784
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    • 1997
  • This paper is fundamental study to develop ceiling materials, using the properties of Zeolite, stone dust and sludge for the purpose of prevention of environmental pollution and reuse of industrial wastes. According to latin square method, We estimated to the significant level ad optimum level for a significant factor, and investigated to the significant degree to extend each factor for required capacity. Thus, we investigated for required capacity in ceiling material such as, compressive and bending strength, absorptivity and thermal conductivity.

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Strength Characteristic of Soil Cement for Waste Stone Sludge Mixture (폐석분 혼합토의 쏘일 시멘트 강도 특성)

  • Choi, yong-goo;Park, bum-sic;Kim, young-muk
    • Proceedings of the Korea Contents Association Conference
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    • 2012.05a
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    • pp.113-114
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    • 2012
  • 본 연구는 건설폐기물로 분류되는 석분 슬러지를 성토재로 활용가능성을 분석하기 위한 목적으로 수행하였으며, 강도증진의 방안으로 쏘일 시멘트 효과를 이용하여 양생기간에 따른 일축압축강도를 분석한 결과 성토재로서의 이용가능성을 모색할 수 있는 것으로 판단된다.

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Recycle Possibility of the Stone-Dust in Quarry as Subbase Layer Materials of the Road (도로 보조기층재로서 채석장 석분토의 재활용가능성 분석)

  • Kim, Kyeong-Su;Song, Young-Suk
    • The Journal of Engineering Geology
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    • v.17 no.2 s.52
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    • pp.279-287
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    • 2007
  • An ore of stone obtained from quarry lose its about 60% such as the muck and the stone-dust during the process of making the architectural block, the crushed aggregate and so on. A part of the muck is only reutilized for the crushed aggregate as road pavement materials, while the most of the muck in the shape of powder is mixed with water and then it is deposited in a sludge tank. The muck in the shape of powder is called the stone-dust. If the stone-dust is discharged and sprayed, an ecosystem will have terrible damage because the seepage of surface water, the flow of ground water and the movement of air are not occurred smoothly by packing the void of soils. As the Waste Management Law (2003) in Korea, the stone-dust is sorted out the industrial waste and the most of that is dumped in ground. Therefore, the establishments of an efficient recycling plan are necessary through the improvement of engineering properties of the stone-dust. To investigate the possibility of recycle and improvement for the stone-dust, the stone-dust and natural soils are sampled from six quarries in Korea. The various soil tests are performed by use of the mixed soils with the stone-dust content ratio. As the result of various soil tests, the recycle possibility of the stone-dust is analyzed as subbase layer materials of the roads.

The Strength Properties of Autoclaved Lightweight Concrete U sing Stone Powder Sludge (석분 슬러지를 사용한 경량 기포 콘크리트의 강도 특성)

  • Jeong Ji Yong;Choi Sun Mi;Sun Joung, Soo;Choi Se Jin;Lee Seong Yeon;Kim Jin Man
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.11a
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    • pp.765-768
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    • 2005
  • This study is investigated the strength properties of ALC(Autocalved Lightweight Concrete) using SPS(Stone Powder Sludge), to develop recycling technique of SPS. At a given replacement percent of SPS and addition percent of foam, the results show that its the strength properties are equal or higher than the quartz used in a raw material of ALC, and it is also found that the addition percent of the foam and the strength properties have a certain relation of linear.

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A Study on the Chemical Compositions of Powdered Sludge of Basalt on Jeju Island (건축용 내화 단열재 개발을 위한 제주도 현무암 석분 슬러지 화학조성에 대한 연구)

  • Kim, Min-Gyun;Kam, Sang-Kyu;Jeon, Yong-Han;Kim, Nam-Jin
    • Journal of the Korea Safety Management & Science
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    • v.21 no.4
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    • pp.45-49
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    • 2019
  • The basalt fiber is expected to become a trend for industrial fibers as they have better properties of heat-resistant, non-combustion, absorbent, soundproof, moistureproof, lightweight, corrosion resistant, and high strength properties. Also, the fiber is found to be non-toxic and harmless to the human body. Therefore, in this study, we analyzed the chemical and mineral compositions of powdered sludge of basalt produced at seven sites on Jeju Island for the development of fire resistance insulating material for a building. The results showed that the basalt stone sludge is made from only sodium calcium aluminum silicate and ferridioside components unlike the basalt rock.

The Engineering Properties of Light Weight Concrete Using Stone Powder Sludge (석분 슬러지를 사용한 경량 콘크리트의 공학적 특성)

  • Jung Ji Yong;Kim Ha Seok;Choi Sun Mi;Choi Se Jin;Lee Seong Yeon;Kim Jin Man
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.05b
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    • pp.457-460
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    • 2005
  • The stone powder sludges, which are occurred in aggregate production company, have classified the specified waste, so taking place the environment pollution and the disposal cost. In this causes, the stone powder sludge is required the development of recycling technique. This study concerned with the using possibility of stone powder sludge on light weight concrete. We acquired the fundamental date on recycling technique of stone sludges, by hydro-thermal reaction. The results shows that it is possible to develop the light weight concrete, having various range of properties according to the content of foam.

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The Basic Study on the Underwater-Hardening Epoxy Mortar Using Stone Powder Sludge (석분슬러지를 이용한 수중 경화형 에폭시 모르타르의 개발에 관한 기초적 연구)

  • Jung Eun-Hye;Kawg Eun-Gu;Bae Dae-Kyung;Cho Sung-Hyun;Bae Kee-Sun;Kim Jin-Man
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.05b
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    • pp.409-412
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    • 2005
  • Because the underwater structures are subjected to the deterioration according to use environment, it is necessary to repair and reinforce when the durable performances are considered in structures. In generally, epoxy mortar is used to repair materials of underwater concrete. It is divided epoxy and filler which is organized cement and sand. Cement can be replaced by stone powder sludge in waste because the grading of stone powder sludge in drying state has similar to that of cement. As result of study, it is possible that stone powder sludge can be applied for replacement materials of cement in epoxy mortar, because the strength is not different when filler in epoxy mortar is alternated stone powder sludge.

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Mechanical Properties of Artificial Aggregate Concrete using the Crushed-stone Sludge (석분 슬러지를 사용한 인공골재 콘크리트의 역학특성)

  • Hong, Ki Nam;Park, Jae Kyu
    • Journal of the Korean Society of Safety
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    • v.27 no.6
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    • pp.127-132
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    • 2012
  • In this study, ambient temperature curing artificial aggregate were developed by using crushed-stone sludge. In order to evaluate the mechanical properties, the artificial aggregate was tested on 7 items. Test results showed that the artificial aggregate mostly satisfied the basic requirements of normal aggregate. The concrete with the artificial aggregate made by weathered rock and granite sludge was tested on the compressive test and flexural test. From the test results, It is confirmed that the concrete with the granite artificial aggregate develope the higher compressive strength than the crushed rock aggregate and the concrete with artificial aggregate concrete have the lower elastic modulus and flexural strength than the concrete with crushed rock aggregate.