Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Properties of Roadway Particles from the Interaction between Tire and Road Pavement

차량 주행 과정에서 타이어와 도로의 마찰에 의해서 발생하는 도로입자의 특성연구

  • 이석환 (한국기계연구원 그린동력실) ;
  • 김홍석 (한국기계연구원 그린동력실) ;
  • 박준혁 (한국기계연구원 그린동력실) ;
  • 우세종 (한국기계연구원 그린동력실) ;
  • 곽지현 (한국기계연구원 그린동력실)
  • Received : 2011.07.15
  • Accepted : 2012.03.16
  • Published : 2012.11.01
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Abstract

A large fraction of urban $PM_{10}$ concentrations is due to non-exhaust traffic emissions including road dust, tire wear particles, and brake lining particles. Although potential health and environmental impacts associated with tire wear debris have been increased, few environmentally and biologically relevant studies of actual tire wear debris have been conducted. Tire wear particles (TWP) are released from the tire tread as a result of the interaction between the tire and the pavement. Roadway particles (RP), meanwhile, are particles on roads composed of a mixture of elements from tires, pavements, fuels, brakes, and environmental dust. The main objective of present study is to identify the contribution of tires to the generation of RP and to assess the potential environmental and health impacts of this contribution. First, a mobile measurement system was constructed and used to measure the roadway particles on asphalt road according to vehicle speed. The equipment of the mobile system provides $PM_{10}$ concentrations by Dusttrak DRX and number density & size distribution measurements of fine and ultra-fine particles by a fast mobility particle sizer (FMPS) and an aerosol particle sizer (APS). When traveling on an asphalt road at constant speed, there is a clear tendency for PM10 concentration to increase slightly in accordance with an increase in the vehicle speed. It was also found that considerable brake wear particles and particles from tire/road interface were generated by rapid deceleration of the vehicle. The morphology and elements of the roadway particles were also analyzed using SEM-EDX technique.

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References

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