• 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).

• 콘크리트학회논문집
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• 제20권1호
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• pp.89-97
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• 2008

메타카올린을 시멘트 치환재로, 잔골재를 폐타이어 잔입자로 일부 치환시킴으로써 건축물 화재시 고강도콘크리트를 폭렬로부터 보호하는 한편, 내부에 배근된 철근의 온도 상승을 억제하는 방법의 검토 및 이들 재료를 혼입한 고강도콘크리트의 기초적 성상에 대하여 검토하였다. 검토 결과 메타카올린은 콘크리트 자체의 내화성을 향상시키며, 고강도콘크리트의 내부 팽창압의 상쇄 기능을 폐타이어 잔입자가 분담할 수 있는 것으로 확인되었다. 세부적으로는 메타카올린을 시멘트에 대해 4$\sim$8%의 중량비로, 폐타이어 잔입자를 0.6$\sim$3 mm의 입도 범위를 사용하며, 잔골재인 모래에 대해 5$\sim$10%의 중량비로 치환하는 것이 고강도콘크리트의 폭렬 방지를 위해 유효한 배합 수준인 것으로 분석되었다.

• 농업생명과학연구
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• 제43권2호
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• pp.17-21
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• 2009

본 실험은 폐타이어칩이 심비디움 Pine Clash 'Moon Venus'의 생장 및 양분함량에 미치는 영향에 대해서 조사하였다. 잎, 줄기의 지상부 생장은폐타이어칩과 바크를 혼용한 경우에는 관행구인 바크와 차이가 없었다. 그러나 폐타이칩 단용구에서는 지상부의 생장이 현저하게 감소하였다. 총근수, 신근수, 근장 등 지하부의 생장도 지상부의 생장과 유사한 경향을 나타내었다. 부패근수는 폐타이어칩 중립과 대립의 단용구에서 증가하였다. 전당, 전분, 엽록소와 N, P, K 등 무기양분의 함량도 폐타이어칩과 바크를 혼용한 경우에는 관행구인 바크와 차이가 없었으나, 폐타이칩 단용구에서는 감소하였다.

• 대한기계학회논문집
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• 제18권7호
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• pp.1833-1839
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• 1994

Experiments have been carried out to investigate the burning characteristics of waste tires in high temperature environments. The burning of waste tire chips consists of four stages ; evaporation of volatile matters, ignition, burning of volatile matters, and burning of solid carbon. Burning time of waste tire chips depends on the gas temperature and the initial weight of the chip. However, the environments. In the ceramic matrix burner with a ceramic radiation shield, the burning time of the waste tire chips becomes shorter than that without the shield. This is due to the increase in heat transfer to the tire chips by radiation.

• Journal of the Korean Wood Science and Technology
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• 제25권4호
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• pp.29-38
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• 1997

The effect and control of wood property of reconstituted composite panels for improved board properties by wood-waste materials and development of combination method for heterogeneous materials have been of interest to the wood science researchers. The purpose of this study is to consider the properties in relation to hot pressing conditions and to develope the optimum hot pressing condition with waste wood and waste tire for the manufacturing of composite boards. The study of composite boards for recycling of wood and waste tire is nothing up to the present. Physical and mechanical properties such as specific gravity, moisture content, swelling coefficient, modulus of rupture and modulus of elasticity in bending test were studied. The condition of 3-stage press time for the lowest moisture content of composite board was $4{\rightarrow}3{\rightarrow}3$ minutes. Specific gravity of composite panels was affected mainly by the amount of rubber chip. Because of the low rigidity and high elasticity in rubber chip, it is considered the composite panel was adequate material in the place of compression load, but not bending load. Therefore, it was concluded that a use of rubber-based wood composite panel is proper to the interior materials such as floor a room than exterior materials. From the test results, the most optimum hot pressing conditions were $4{\rightarrow}3{\rightarrow}3$ minutes for 3-stage press time and $45{\rightarrow}20{\rightarrow}5kg/cm^2$ for 3-stage press pressure. The rubber-based wood composite panel was very excellent in elasticity by combination of rubber chip in comparison with existing other wood-based materials. Therefore, it was considered that rubber-based wood composites can be applicable to every interior materials such as floor a room and will be expected to effective reuse and recycle of waste tires and wood-waste materials, and will be contribute to protection of environment pollution in earth.

• 소음진동
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• 제9권3호
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• pp.477-484
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• 1999

This study aims to present proper thickness of resilient mount and pattern of chips for the improvement of impact sound isolation. To achieve this aim, field tests were performed to evaluate the performance of impact sound isolation of pilot samples using waste tire chips against light and heavy-weight impacter, which samples were installed over concrete slabs of an apartment housing. In this study, the experiments were performed by the impact sound level of floors in KS F 2810 "Method for field measurement of floor impact level". As results, a flooring structure using waste tire chips as a resilient mount, with no relation to chip's types, has enhanced performance by 1~2 degree in light impact sound isolation, while it has improvement in heavy impact sound isolation. And fiber-type chips have better performance than granule-type ones when they overlaid concrete slab with 15~20 mm of thickness. For the improvement of impact sound isolation, it is recommended that insulating materials should be applied at joints between floating floors and walls, or floating floors and a doorframes, and also waterproof papers should be used for the effective thickness of resilient mount.ent mount.

• Geomechanics and Engineering
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• 제37권5호
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• pp.443-452
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• 2024

The use of sand-tire chip mixtures in construction industry is a sustainable and environmentally friendly approach that addresses both waste tire disposal and soil improvement needs. However, the addition of tire chip particles to natural soils decreases maximum shear modulus (G_max), but increases compressibility, which can be potential drawbacks. This study examines the effect of overconsolidation stress history on the maximum shear modulus (G_max) of rigid-soft mixtures with varying size ratios (SR) and tire chip contents (TC) by measuring the wave velocity through a 1-D compression test during loading and unloading. The results demonstrate that the G_max of tested mixtures in the normally consolidated state increased with increasing SR and decreasing TC. However, the tested mixtures with a smaller SR exhibited a greater increase in G_max during unloading because of the active pore-filling behavior of the smaller rubber particles and the consequent increased connectivity between sand particles. The SR-dependent impact of the overconsolidation stress history on G_max was verified using the ratio between the swelling and compression indices. Most importantly, this study reveals that the excessive settlement and lower G_max of rigid-soft mixtures can be overcome by introducing an overconsolidated state in sand-tire chip mixtures with low TC.

• 한국농공학회논문집
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• 제58권1호
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• pp.19-26
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• 2016

This study was performed to evaluate the strength and durability properties of modified epoxy composites with waste tire chip, recycled coarse aggregate, filler and modified epoxy to improve elongation and elasticity of epoxy. Additionally, for comparing to modified epoxy and unsaturated polyester resin as a binder, unsaturated polyester resin composites were developed in the same condition. The mix proportions were determined to satisfy the requirement for the workability and slump according to aggregate size and binder content. Tests for the compressive and flexural strength, freezing and thawing and durability for 20 % sulfuric solution were performed. The compressive and flexural strength of modified epoxy composites were in the range of 34.9~61.6 MPa and 10.2~18.3 MPa at the curing 7 days, respectively. Also, the compressive and flexural strength of unsaturated polyester resin composites were in the range of 44.2~77.8 MPa and 11.3~20.8 MPa at the curing 7 days, respectively. After 300 cycles of freezing and thawing, weight decrease ratio and durability factor of modified epoxy composites were in the range of 0.8~1.9 % and 95~98, respectively. Accordingly, modified epoxy composites will greatly improve the durability of concrete.

• 한국건설순환자원학회논문집
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• 제3권4호
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• pp.342-347
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• 2015

본 연구는 최근 산업 발전으로 나날이 증가하는 폐타이어가 야기시키는 환경오염을 해결하고 폐타이어를 재활용함으로써 무분별한 매립을 예방하기 위한 기초 실험이다. 건축 재료의 경량골재를 폐타이어분말로 대체함으로써 폐타이어분말의 경량성을 검토하고 폐타이어분말의 재활용 계획을 제시하고 적용하고자 한다. 선행실험으로 폐타이어분말을 20, 40, 60, 80, 100(%) 등으로 치환하여 실행하였고, 측정 항목은 강도와 밀도이다. 본 실험은 선행실험을 기초로 하여 폐타이어 치환율을 15, 20, 25(%) 등으로 하였다. 폐타이어 골재의 입도는 0.2, 0.8, 1~2, 3~5, 5~7(mm) 등으로 고정하였다. 실험 결과 폐타이어 입도 1~2mm, 치환율 15%가 가장 적정한 입자크기 및 치환율 값을 나타내었다.

• 콘크리트학회논문집
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• 제21권2호
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• pp.179-186
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• 2009

고강도콘크리트의 취약점으로 지적되고 있는 화재시의 폭렬현상에 대한 대책을 마련하기 위해 각 계의 노력이 활발한 현 상황에서 각종 폭렬 저감성 재료 및 새로운 개념의 소재에 대한 적정 혼입비율을 구명해야 하는 긴요한 상황이다. 본 연구에서는 메타카올린, 페타이어칩, 폴리프로필렌섬유 및 강섬유의 4가지 기능성 소재를 대상으로, 기본적인 품질 요건은 물론, 내화성능에 최적의 효과를 나타낼 수 있는 배합비를 실험적, 통계적으로 도출하고자 하였다. 여기서, 실험은 4인자 3수준의 직교배열표를 이용하여 최소실험법으로 계획하고, 통계적 분석은 반응표면분석 기법을 이용하였다. 그 결과, 80 MPa급 고강도콘크리트의 내화성능 보강인자로 선정된 기능성 소재간에는 복합 사용시 상호 보완적인 기여를 하는 것으로 확인되었다. 한편, 반응표면분석을 통해 도출한 내화성능 보강인자의 최적조건은 메타카올린을 실리카퓸 대신 80% 수준으로 용적치환하고, 폐타이어칩은 잔골재 대신 3% 수준으로 용적치환하는 경우와 폴리프로필렌 섬유를 전체용적에 대하여 0.2% 수준으로 첨가하는 한편, 강섬유를 혼입하지 않는 것이 고강도콘크리트의 기초 특성과 내화특성을 고루 만족할 수 있는 것으로 분석되었다.