• Title, Summary, Keyword: oyster shell

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A Study on Grading According to Raw Materialization of Oyster shell (굴 패각의 원료화 공정에 따른 입도분포에 관한 연구)

  • Jung, Ui-In;Hong, Sang-Hun;Choi, In-Kwon;Kim, Bong-Joo;Won, Chul-Hee;Choi, Ho-Rim
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.195-196
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    • 2016
  • Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. So we would like to test if it is avail to use oyster shell crust as fine aggregate. So we use a crusher to crush oyster shell and review its particle distribution for materialization.

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Experimental study on the Physical and Mechanical Properties and Acid-Resistance of Concrete with Oyster Shell (패분을 혼입한 콘크리트의 물리.역학적 특성 및 내산성에 관한 실험적 연구)

  • 서대석;민정기;정현정;남기성;성찬용
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • pp.319-323
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    • 1999
  • This study is performed to evaluate the physical and mechanical properties and acid-resistance of oyster shell concrete. The result shows that the unit weights of concrete with oyster shell are decreased by 1∼2% than that of the normla cement concrete. The highest strength is achieved by 2.5% oyster shell filled oyster shell concrete, it is increased compressive strength by 4% , tensile strength by 6% and bending strength by7% than that of the normal cement concrete, respectively . The acid-resistanceis increased with increase of the content of oyster shell. It is 1.6 times of the normal cement concrete by 15% oyster shell filled oyster shell concrete. Accordingly, oyster shell concrete will improve the properties of concrete.

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Applicability of Oyster Shell to Concrete Ingredients (굴패각의 콘크리트 잔올재로의 활용성)

  • 양은익;손명수;김학모;정용일
    • Proceedings of the Korea Concrete Institute Conference
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    • pp.501-506
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    • 2001
  • An experimental study was carried out to investigate recycling of an oyster shell, which is disposed in open-dumped way at coastal oyster factory area. For this purpose, the chemical component and reaction of oyster shell with cement paste was examined. And, the characteristics of hardened concrete was quantitatively investigated in terms of fineness modulus and blending rate of the crushed oyster shell. Test results show that interaction between oyster shell and cement paste was not occurred and the crushed oyster shell can be used as the fine aggregate of concrete. And it is found that blending of an oyster shell caused not to reduce the 28 day compressive strength of concrete. Elastic modulus of the concrete blended with crushed oyster shells decreases with increases the blending rate which the modulus reduced about 10% when oyster shells is blended up to the 20% of the sand substitution.

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A Study on Strength Properties of Mortar According to Mass ratio change using Oyster shell as Aggregate (굴 패각을 잔골재로 사용한 모르타르의 질량비 변화에 따른 강도특성에 관한 연구)

  • Jung, Ui-In;Yu, Nam-Gyu;Hong, Sang-Hun;Kim, Bong-Joo;Won, Chul-Hee;Choi, Ho-Rim
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.156-157
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    • 2016
  • Oyster shell is produced by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to sand. So we produced mortar test using different law of multiple proportions of grounded oyster shell powder of its particle size according to fine aggregate standard and reviewed strength Properties.

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A Study on Strength Properties of Mortar using Oyster shell as Aggregate (굴 패각을 골재로 사용한 모르타르의 강도특성에 관한 연구)

  • Jung, Ui-In;Yu, Nam-Gyu;Heo, Min-Hoe;Kim, Bong-Joo;Won, Chul-Hee;Park, Jung-Hun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.193-194
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    • 2016
  • Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. So we produced mortar test piece using grounded oyster shell powder under 5mm of its particle size according to fine aggregate standard and reviewed strength Properties.

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A Study on the Strength Properties for Mortar using Oyster shell of Fiber Addition (굴 패각을 채움재로 사용한 모르타르의 섬유 혼입에 따른 강도특성에 관한 연구)

  • Jung, Ui-In;Hong, Sang-Hun;You, Nam-Gyu;Kim, Bong-Joo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.94-95
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    • 2017
  • Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. We produced mortar test piece using grounded oyster shell powder according to Filler and Fiber. So I wanted to measure the strength and use it as a baseline for follow-up studies.

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A Study on Fireproof Performance of Mortar using Oyster shell as Filler (굴 패각을 채움재로 사용한 모르타르의 내화성능에 관한 연구)

  • Jung, Ui-In;Hong, Sang-Hun;Kim, Bong-Joo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.135-136
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    • 2017
  • Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. So we produced mortar test piece using grounded oyster shell powder according to Filler and reviewed Fireproof Performance.

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A Study on Strength Properties of Mortar using Classified Oyster shell as Aggregate (분급된 굴 패각을 잔골재로 사용한 모르타르의 강도특성에 관한 연구)

  • Jung, Ui-In;Hong, Sang-Hun;Choi, In-Kwon;Kim, Bong-Joo;Won, Chul-Hee;Park, Jung-Hun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.58-59
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    • 2016
  • Oyster shell is produced by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and its strength characteristic is similar to sand. So we produced mortar test piece using grounded oyster shell powder under 0.6mm, 0.6~1.2mm, 1.2~2.5mm, 2.5~5.0mm of its particle size according to fine aggregate standard and reviewed strength Properties.

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Oyster Shell Disposal: Potential as a Novel Ecofriendly Antimicrobial Agent for Packaging: a Mini Review

  • Sadeghi, Kambiz;Park, Kitae;Seo, Jongchul
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.25 no.2
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    • pp.57-62
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    • 2019
  • The management of oyster shell disposal is an ongoing challenge in the southern coast of Korea because of continuously dumping the oyster shell in environment. Oyster shell wastes could be a biocidal alternative after calcination using a heat treatment. Calcined oyster shell is normally obtained through thermally conversion of $CaCO_3$ (main component in oyster shell (96%)) into CaO. This study provides a brief overview of oyster shell disposal and its potential as an antimicrobial agent with a focus on calcination process, antimicrobial mechanisms, and packaging applications.

A Study on Strength Characteristic as the Fineness Modulus and Curing Method of Oyster shells (굴 패각의 조립률 및 양생방법에 따른 강도특성에 관한 연구)

  • Jung, Ui-In;Hong, Sang-Hun;You, Nam-Gyu;Song, Seung-Li;Kim, Bong-Joo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.62-63
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    • 2018
  • Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. So we produced mortar test piece using grounded oyster shell according to aggregate and reviewed strength characteristic. Therefore, in this study, the strength characteristics of the test specimen are evaluated by artificially altering fineness modulus and curing method by processing oyster shells.

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