• 한국농공학회:학술대회논문집
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• 한국농공학회 1998년도 학술발표회 발표논문집
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• pp.180-185
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• 1998

The study was conducted to evaluate the fundamental properties of waste tire asphalt concretes using polymer modified hinder that were made by dry process. The specimens of four types of polymer modified asphalt concretes were prepared, then Marshall test and indirect tensile strength tests were performed on these samples. The results showed that polymer modified waste tire rubber asphalt concrete was acceptable for the material of asphalt pavement surface layer.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 추계학술대회 논문집
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• pp.325-328
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• 2009

The 10t/d pyrolysis demonstration plant have been developed for waste tire recycling treatment and value added commercialization. The initial plant model had been started under 2.4t/d capacity with continuous operation, and the commercial plant has been achieved to the 120t/d based on demonstration plant having the tube reactor with chain conveyer attached disk. The next generation pyrolysis plant for waste tire is reviewed and the assignment for plant development is presented briefly.

• 한국수소및신에너지학회논문집
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• 제28권5호
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• pp.577-583
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• 2017

A series of microwave waste tire pyrolysis experiments were conducted using a lab-scale batch reactor to delineate the effects of microwave ouput power on the pyrolysis behavior of waste tire. As results of experiments, it was found that as the microwave output power was increased from 1.22 kW/kg to 2.26 kW/kg, the reaction temperature and oil yield increased significantly and the required time and microwave power consumption decreased remarkably, respectively. With increased power consumption, the content of the fixed carbon of pyrolysis residue increased.

• 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

• 자원리싸이클링
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• 제23권3호
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• pp.44-50
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• 2014

본 연구에서는 기존의 cutting 분쇄방식 대신 여러 가지 문제점을 개선한 shear방식 및 2단 disk mill 방식으로 폐타이어를 미분화시켰다. 각 파쇄 또는 분쇄 단계별로 다양한 크기의 고무 칩을 얻을 수 있었다. Shear방식 및 2단 disk mill 방식은 회전 속도와 방향이 다른 두 개의 드럼형의 칼날로 이루어져 있어서 기존의 cutting 방식보다 거친 표면의 미분화 폐타이어 분말을 얻을 수 있었다. 본 연구에서는 주로 shear방식으로 미분화된 폐타이어 분말의 형상을 SEM을 통해 비교하였다. 추가적으로 적절한 크기의 폐타이어 분말이 얻어졌는지를 확인하기 위해 입도분석을 수행하였다.

• Elastomers and Composites
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• 제32권5호
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• pp.325-329
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• 1997

Microbial treatment of the powdered waste tire was studied to recycle the waste tires. Chemoautotrophic acidophilic, iron-oxidizing bacterium was employed to unvulcanize the powdered tires. Biotreated rubber powder was compared to a untreated and a chemically treated powder. The results showed sulfur content of rubber powder(1.33%) were decreased to 1.22% by chemical treatment and 1.12% by microbial treatment for 20 days, 0.88%, for 30 days. One of the problems of the powdered utilization of the waste tires is that rubber powder leads to decrease mechanical properties when it is compounded with other virgin polymers. When tee biotreated powder was compounded with natural rubber, the mechanical properties were less decreased when untreated or chemically treated powder. Therefore, the microbial treatment can be one of useful methods to recycle the waste tire.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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• pp.220-224
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• 2001

Waste tires are a significant problem with the increasing in number of automobiles. Therefore, many researches have been studied on this field. Recycling is the one of the popular method aspect to environmental and economical in the treatment methods of the waste tire, which loads that the reuse of scrap tire rubber has been a challenge in the past. However, it is not easy method to melt down and mold into new products because the in rubber is a cross-linked polymer. Most difficulty in recycling is the recycled product is not economic. Therefore, the goal of this study is to develop the high valuable products for reused waste tires. In this paper, we try to make an economic recycled technology using scrapped waste tires. This technology may applied for manufacturing the end products such as a rubber block and a ballast mat for high-speed train.

• Journal of Biosystems Engineering
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• 제25권6호
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• pp.481-488
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• 2000

This study was initiated in order to find alternative fuel substituting for light oil the most common fuel for heating greenhouse. The tire oil used in this research was produced by pyrolysis process, one of the final products besides steel string and carbon black in which waste tires as a form of chopped pieces broken by shredding machine are heated up to 200~30$0^{\circ}C$ with maximum restraining of oxygen supply. In order to justify light oil equivalent qualities in tire oil combustion characteristics were defined in the way of comparing kinetic viscosities in the wide range of temperature flame sizes and exhaust gas components in the various combustion conditions. We found that kinetic viscosity of tire oil was lower than light oil by 1 to 2 cSt in the temperature range showing better flowing mobility in the fuel line of the burner and no significant difference in flame size between the two oils in the all combustion treatments. However much more NO and SO$_2$ were detected from the exhaust gases of tire oil than light oil combustions. In fact tire oil contains more nitrogen and total sulfur, by 25 times and 40 times respectively than light oil according to the composition analysis. Tolerable limit for SO$_2$discharge amount defined by the national air pollution standards is under 540ppm so tire oil combustion satisfies the requirement though. It is desirable if sulfur and nitrogen filtering process shall be added in the tire oil production line. Except the exhaust gas components all greenhouse heating qualities of tire oil including hot air temperature are very identical to those of light oil.

• 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.

• 한국화재소방학회논문지
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• 제24권4호
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• pp.12-17
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• 2010

본 연구는 자원의 재활용 측면에서 적용한 폐타이어 분말을 혼입한 모르타르에 난연제를 첨가하여 그 난연특성을 알아보고자 한다. 폐타이어 분말의 혼입으로 단열성능 향상은 이미 검증이 되었으나, 단열성과 결합력의 상반된 재료 특성으로 인해 화재에는 취약한 바. 이에 난연제를 첨가하여 인명안전에 만전을 기하고자 한다. 폐타이어 분말을 혼입한 모르타르의 난연제를 첨가하여 첨가 비율에 따른 그 특성을 알아보고자 한다. 화재 초기의 특성을 알 수 있는 재료의 가연성 여부를 실제 화재와 유사한 복사열에 의해 시험하고자 하였으며. 실험방법은 한국건자재 시험연구원에 의뢰하여 ISO 5657 절차에 의한 재료의 착화시간, 불꽃 발생여부, 시험체의 형태변화 등을 고찰하고자 한다. 폐타이어 분말이 혼입된 모르타르와 난연제(무기계)의 배합비율은 폐타이어 분말의 0%, 30%, 60%, 90% 비율로 수산화알루미늄을 첨가하며 조연제인 삼산화안티몬은 난연제의 10%를 첨가한다. 시험체를 수평설치하여 일정한 복사열($1{\sim}5W/cm^2$)을 시험체 상부표면에 노출시키면 열이 시험체 표면에서 내부로 전도되어 온도가 상승한다. 온도가 충분히 높다면 시험체는 열분해하면서 가연성가스를 발생시킨다. 이 때 점화원인 점화기구의 작은 불꽃은 시험체 중앙 위의 10mm 지점에 규칙적인 간격으로 접염하였을때의 재료의 지속적인 표면 착화특성(착화시간) 평가한다. 난연제 미첨가시에도 착화가 일어나지 않아 폐타이어분말이 혼입된 모르타르의 가연성은 적은 것으로 볼 수 있으며, 화재실내에 존재하는 가연물의 양을 평가하는 화재하중에 이를 반영할 수 있다. 폐타이어 분말에 무기계 난연제를 첨가함에 따라 흡열효과에 의해 불꽃은 발생하지 아니하고 폐타이어 분말입자의 분해속도도 지연되었음을 확인할 수 있다. 복사열로 인해 난연제인 수산화알루미늄이 열분해하여 모르타르내 수증기 분압이 증가하여, 폐타이어 분말의 불꽃이나 연소형태는 보이지 않았다.