• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 춘계 학술발표회
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• pp.774-781
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• 2009

The purpose of this study was to research on compressibility characteristics of waste tire powder-added lightweight soil(TLS) for recycling dredged soil, bottom ash and waste tire. The TLS used in this experiment consists of dredged soil, cement, waste tire powder and bottom ash. Test specimens were prepared with various content of waste tire powder ranged from 0% to 100% at 25% intervals by the dried weight of dredged soil. Several series of one-dimensional consolidation tests were carried out. Based on the experimental results, as the waste tire powder increased, the swelling index of TLS increased. The compression index and swelling index of the TLS with bottom ash content showed lower value than without bottom ash. Then, compressibility characteristics of TLS were strongly influenced by mixing conditions of waste tire powder content and bottom ash content.

• 한국해양공학회지
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• 제24권3호
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• pp.52-58
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• 2010

This study investigated the engineering properties of waste tire powder-bottom ash added composite soil, which was developed to recycle dredged soil, bottom ash, and waste tire powder. Test specimens were prepared using 5 different percentages of waste tire powder content(0%, 25%, 50%, 75%, and 100% by weight of the dry dredged soil), three different percentages of bottom ash content (0%, 50%, and 100% by weight of the dry dredged soil), and three different particle sizes of waste tire powder (0.1~2 mm, 0.9~5 mm, and 2~10 mm). Several series of unconfined compression tests, direct shear tests, and flow tests were conducted. The experimental results indicated that the waste tire powder content, particle size of waste tire powder, and bottom ash content influenced the strength and stress-strain behavior of the composite soil. The flow value increased with an increase in water content, but decreased with an increase in waste tire powder content.

• 한국지반공학회논문집
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• 제26권2호
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• pp.55-62
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• 2010

폐타이어 분말 입경에 따른 폐타이어-저회 혼합토의 전단특성에 관한 연구를 수행하였다. 건조된 저회 중량을 기준으로 5개의 폐타이어 분말 함량(0%, 25%, 50%, 75%, 100%)과 3종류의 폐타이어 분말 입경(0.1mm~2.0mm, 0.9mm~5mm, 2mm~10mm)에 따라 공시체를 준비하였다. 직접전단시험을 수행한 결과 폐타이어-저회 혼합토의 역학적 특성은 폐타이어 분말 입경과 함량에 크게 의존하는 것을 알 수 있다. 폐타이어 분말 함량이 증가함에 따라 혼합토의 전단강도와 내부마찰각은 감소하나, 폐타이어 분말 입경이 커짐에 따라 입자간의 억물림 효과에 의해 전단강도와 내부마찰각은 증가하는 경향을 가진다.

• 한국해양공학회지
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• 제23권3호
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• pp.20-29
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• 2009

This study investigated the shear strength characteristics of waste tire powder-added lightweight soil (WTLS), which were developed to recycle dredged soil, bottom ash, and waste tires. The WTLS used in this experiment consisted of dredged soil, bottom ash, waste tire powder, and cement. Test specimens were prepared with various contents of waste tire powder ranging from 0% to 100% at 25% intervals and bottom ash contents of 0% or 100% by the weight of the dry dredged soil. In this study several series of direct shear tests were carried out, which indicated that the shear properties of WTLS were strongly influenced by the mixing conditions, such as the waste tire powder content and bottom ash content. The unit weight, as well as the shear strength of the WTLS, decreased with an increase in waste tire powder content. The shear strength of WTLS with bottom ash was 1.34 times greater than that of WTLS without bottom ash. An average increase in cohesion of 30 kPa was obtained in WTLS with the inclusion of bottom ash due to the bond strength induced from the pozzolanic reaction of the bottom ash. In this test, the maximum value of the internal friction angle was obtained with a 25% content of waste tire powder.

• 한국해양공학회지
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• 제22권5호
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• pp.112-118
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• 2008

The purpose of this study was to determine the engineering and environmental properties of the waste tire powder-added lightweight soil (TLS) used as flowable backfill. The TLS used in this experiment consisted of dredged soil, bottom ash, waste tire powder and cement. Test specimens were prepared with various contents of waste tire powder ranging from 0% to 100% at 25% intervals and water contents ranging from 140% to 200% by the weight of the dry dredged soil. Several series of unconfined compression tests, flow tests, and leaching tests were carried out. Experimental results for the TLS indicated that the unconfined compressive strength, secant modulus (), and unit weight of the TLS decreased with an increase in waste tire powder content. However, as the waste tire powder content increased, the stress-strain relationship of the TLS showed more ductile behavior rather than brittle behavior. The flow value increased with an increase in water content, but decreased with an increase in waste tire powder content. The result of the leaching test showed that the leaching amounts of heavy metals were lower than the permitted limits suggested by the Ministry of Environment.

• 대한토목학회논문집
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• 제28권4C호
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• pp.247-253
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• 2008

본 연구에서는 준설토, 폐타이어 분말 및 저회(bottom ash)를 재활용한 폐타이어 분말 혼합경량토의 역학적 특성을 고찰하였다. 본 실험에서 폐타이어 분말의 함량은 건조 준설토 중량대비 0%에서 100%까지 25%간격으로 변화시켜 5개의 공시체를 준비하였다. 혼합된 공시체는 일축압축시험, 탄성파 시험을 수행하여 강도와 지반정수들을 구하였다. 실험결과 폐타이어 함량이 증가함에 따라 일축압축강도와 단위중량은 감소하는 경향을 나타내었다. 그러나 파괴시 축변형률은 증가하는 것으로 나타났다. 또한 폐타이어 분말의 함량이 증가할수록 폐타이어 혼합경량토의 응력-변형률 곡선은 취성적 거동보다는 연성적 거동을 나타내었다. 탄성파 시험에서는 폐타이어 함량이 증가함에 따라 탄성파 속도와 전단탄성계수는 감소하는 성질을 나타내고 있다.

• 한국해양공학회지
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• 제25권3호
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• pp.34-39
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• 2011

This study investigated the shear and CBR characteristics of dredge soil-bottom ash-waste tire powder-mixed lightweight soil, which was developed to recycle dredged soil, bottom ash, and waste tire powder. Test specimens were prepared with various contents of waste tire powder ranging from 0 to 100% at 50% intervals by the weight of the dry dredged soil. Several series of triaxial compression tests and CBR tests were conducted. The shear strength characteristics of the lightweight soil were compared using two different shear tests (triaxial compression test and direct shear test). The experimental results indicated that the internal friction angle of the lightweight soil obtained by the direct shear tests was greater than that by the triaxial shear tests. However, the cohesion value obtained by the triaxial shear tests was greater than that by the direct shear tests. The CBR value of the lightweight soil decreased from 35% to 15% as waste tire powder content increased.

• Elastomers and Composites
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• 제41권1호
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• pp.49-56
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• 2006

Allylamine을 이용하여 UV하에서 폐타이어 분말을 개질하였으며, 이를 이용한 PP/폐타이어분말 복합체의 열적, 유변학적 성질을 분석하였다. X-ray 분석결과 무수말레 산이 그라프트된 폴리프로필렌과 같은 상용화제가 없는 경우 ${\beta}$ 결정의 피크 강도가 증가한 반면 상용화제가 있는 경우 완전히 없어짐을 알 수 있었으며, DSC 결과에서도 이를 확인할 수 있었다. 개질된 폐타이어 분말을 함유한 복합체의 용융점도와 탄성모듈러스는 개질되지 않은 분말을 함유한 복합체 보다 높은 값을 나타내었으며, 이는 개질된 분말 표면의 아민기와 말레이산이 그라프트된 PP의 상호작용에 기인하는 것으로 판단된다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2002년도 학술.기술논문발표회
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• pp.17-22
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• 2002

This Waterproofing Material which mainly consisted of 2 components of waste tire chip powder and waste glass powder. This Study is abut development of waterproofing Material, There is not tried in domestic. The most Motive of this Study wishes to recycle resources and get the economic performance for waterproofing Material The result of this Study is as followings. (1) Dense waterproofing floor is formed between waste tire chip by Coupling Agent(the most effective method to encourage adhesive strength and raise cohesion of material by combination.) (2) Expected to bring effect to shorten construction period at spot application potentially space-time in moisture aspect. Also, shortening effect of construction period and spot work are considered to be gone efficiently selecting pre-mix construction method. (3) This development Waterproofing material has elasticity that nature side compatibility of cement ingredient and plastic Emulsion have when utilize and constructs waite resources (being waste tire chip and waste glass powdered).

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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• pp.117-121
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• 2001

The present study has been conflicted to verify the applicability of tire powder and food waste compost as biofilter materials to degrade volatile organic compounds. Batch and column tests were performed to determine the optimum ratio of tire powder to compost and the appropriate mixing type of two materials for removal of the selected VOCs, i.e., benzene, ethylbenzene, PCE, and TCE. According to batch tests, tire powder and compost mixture had faster removal rate than the compost. The biofilter column filled with tire powder and compost showed better VOC removal efficiency than that filled with only tire powder. In this study, the best removal rate was observed in the sandwich type column test of which the tire : compost weight ratio was 1:2