• Journal of the Korean Geotechnical Society
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• v.29 no.9
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• pp.81-91
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• 2013

This paper investigates the shear properties of bottom ash-crumb rubber mixture reinforced with waste fishing net. Mixtures used in this experiment were prepared at 2 different percentages of crumb rubber (2 mm~10 mm) content (i.e., 0%, 50% by weight of the dry bottom ash). In this study several series of triaxial tests were carried out on the six different specimens : unreinforced bottom ash, reinforced bottom ash with 1 or 2 layers, unreinforced mixture, reinforced mixture with 1 or 2 layers. The experimental results indicated that the shear properties of bottom ash-crumb rubber mixture were strongly influenced by reinforcing layer of waste fishing net and crumb rubber addition. It is shown that the internal friction angle of bottom ash-crumb rubber mixture decrease with addition of crumb rubber due to the compression properties of crumb rubber. However, the internal friction angle of the mixture increased with an increase in reinforcing layer due to interlocking effect and friction between mixture and waste fishing net.

• The tire
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• s.221
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• pp.45-47
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• 2004

• The tire
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• s.222
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• pp.41-42
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• 2005

• The tire
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• s.160
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• pp.40-41
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• 1992

이 자료는 일본의 타이어 전문지인 ‘월간 타이어’ 기자가 일본 ‘주우시멘트제조수탁회사’ 팔호 시멘트공장을 방문, 시멘트를 제조하는 데 있어서 ‘시멘트 킬른’의 열에너지로서의 폐타이어 사용에 대하여 이 회사 관계자들과 대담한 내용을 번역, 요약 정리한 것이다.

• The tire
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• s.185
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• pp.45-48
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• 1996

이 자료는 유럽의 폐타이어 재활용현황에 대하여 일본자동차타이어협회 재활용위원회가 조사한 내용 중 ‘월간 타이어’ 편집자와 인터뷰한 것(월간 타이어, 1995년 4월호)을 번역하여 요약 전제한 것이다. 역자 주

• Journal of the Korean Geotechnical Society
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• v.26 no.2
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• pp.55-62
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• 2010

This paper investigates the shear properties of waste tire-bottom ash mixture with various particle size of waste tire powder. Test specimens were prepared at 5 different percentages of waste tire powder content (i.e., 0%, 25%, 50%, 75%, 100% by weight of the dry bottom ash), and with three different particle sizes of waste tire powder (i.e., 0.1 mm~2.0 mm, 0.9 mm~5 mm and 2 mm~10 mm). In this study several series of direct shear tests were carried out. The experimental results indicate that the mechanical characteristics of waste tire-bottom ash mixture are strongly influenced by the particle size as well as waste tire powder content. It is shown that the shear strength and internal friction angle of waste tire-bottom ash mixture decrease with an increase in waste tire powder content. However, the shear strength and internal friction angle of the mixture increase due to interlocking effect between waste tire powder and bottom ash as the particle size of waste tire powder increases.

• The tire
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• s.161
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• pp.41-42
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• 1992

이 자료는 ‘92년 6월 29일자 일본 ’주간 타이어신보‘에 폐타이어 재활용에 대하여 ’시멘트업계의 대응을 듣는다‘란 제호로 게재되었던 (사)일본시멘트협회 산하 환경특별위원회 간사회 간사장 반총주일씨와의 인터뷰 기사를 번역, 발췌 수록한 것이다.

• The tire
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• s.240
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• pp.52-57
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• 2009

미국고무협회(RMA)는 1990년부터 시작하여 미국의 폐타이어 시장에 대한 보고서를 2년마다 작성하고 있다. 기존 수량 기준을 중량으로 바꾸어 현황파악을 보다 정확히 할 수 있게 한 금년 5월 보고서에 따르면, 미국의 07년 폐타이어 재활용률은 중량기준으로 89.3%를 기록하였다.

• The tire
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• s.244
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• pp.54-56
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• 2010

유럽 타이어고무협회(ETRMA)에 따르면, 2009년 유럽의 타이어 교체시장은 2008년 과 비교하여 상당히 저조하여 트럭버스용 타이어의 경우 30%의 큰 판매 감소를 보였고 승용차용도 1% 이하의 증가율을 기록하였다. 하지만 이러한 불경기가 폐타이어를 선별하고 재활용하는 업체들의 폐타이어 수급문제에 악영향을 미쳤음에도 불구하고 유럽의 2009년 폐타이어 재활용률은 96%를 기록하였다.

• Resources Recycling
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• v.24 no.2
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• pp.36-45
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• 2015

In this study, various sizes of waste ground rubber tire (WGRT) were devulcanized by a single screw extruder equipped with a sonicator in front of the die, and waste PP and devulcanized waste ground rubber tire (DWGRT) composites were prepared by an intermeshing co-rotating twin screw extruder. The crosslink density and percent devulcanization of WGRT and DWGRT for 40, 80 and 140 meshes were calculated. The mechanical properties of the composites were compared with each other. The effect of SEBS-g-MA as a compatibilizer was investigated on mechanical properties of both waste PP/WGRT and waste PP/DWGRT composites. The crosslink density was decreased with decreasing the WGRT size. On the other hand, the percent devulcanization was increased by adding the smaller size of WGRT. Also, tensile strength, impact strength and elongation at break of the composite with DWGRT were higher than those with WGRT. Especially, mechanical properties of the composites were significantly increased by adding the smaller size of WGRT and DWGRT. Addition of SEBS-g-MA into both waste PP/(D)WGRT composites exhibited better impact strength and elongation at break than the composites themselves.