International Journal of Highway Engineering (한국도로학회논문집)

Korean Society of Road Engineers (한국도로학회)
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Effect of Thermal Segregation Reduction in Asphalt Paving with MTV

MTV를 적용한 아스팔트 포설에서 열분리 저감 효과

  • Received : 2018.04.05
  • Accepted : 2018.07.30
  • Published : 2018.08.16
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Abstract

PURPOSES : The objective of this study is to evaluate of the effect of thermal segregation reduction in asphalt paving using material transfer vehicles (MTVs). METHODS : Asphalt paving using MTVs was carried out, and the paved surface temperature was measured using an infrared camera. The amount of thermal segregation was estimated from temperature variations. RESULTS : The transportation of hot mix asphalt (HMA) using dump trucks caused temperature segregation that persisted in the paving surface if an MTV was not used. The average temperature variation was 8.58% in paved surfaces where an MTV was not used. However, the temperature variation was 3.10%, 2.86%, and 4.53% for the base layer, inter-layer, and surface layer, respectively, when an MTV was used. CONCLUSIONS : The use of an MTV in asphalt paving reduces thermal segregation approximately 2.3 times in an asphalt mat via a remixing process and also allows for a smoother work process because the paver never needs to stop to receive HMA. However, MTV equipment without pre-heating devices requires careful temperature control during the warm up process at the MTV during construction in the winter.

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References

  1. Amirkhanian, S. N., B. J. Putman (2006). "Laboratory and Field Investigation of Temperature Differential in HMA Mixtures Using an Infrared Camera." Clemson University. Report No. FHWA-SC-06-06. Clemson, SC.
  2. Beak J., Park H. M., Yoo P. J. and Im J. K. (2015). "Construction Management Method for Asphalt Paving Using Ground Penetrating Radar and an Infrared Camera", International Journal of Highway Engineering, Vol.17, No.6, pp.1-9 (in Korean). https://doi.org/10.7855/IJHE.2015.17.6.001
  3. Bode T. A. (2012). "An Analysis of the Impacts of Temperature Segregation on Hot Mix Asphalt", M.S. Thesis, University of Nebraska.
  4. Gardiner M. S., Law M. and Nesmith C. (2007). "Using Infrared Thermography to Detect and Measure Segregation in Hot Mix Asphalt Pavements" International Journal of Pavement Engineering, Vol.1, No.4, pp.265-284 https://doi.org/10.1080/10298430008901710
  5. Gilbert K. (2005). "Thermal Segregation" Colorado Department of Transportation, Report No. CDOT-DTD-R-2005-16.
  6. Lee S. H., Kim N. H. and Hwang S. D. (2016). "Proposals for Improvement of Quality Control to Improve Asphalt Pavement Life", Korea Society of Road Engineers, Vol.18, No.1, pp.18- 21 (in Korean).
  7. Ministry of Land, Infrastructure and Transport, (2015)."Guidelines for Production and Construction of Asphalt Mixtures"(in Korean).
  8. Willoughby, K. A. (August 2003). "Construction-Related Variability in Mat Density Due to Temperature Differentials." Washington State Department of Transportation.
  9. Yun T. Y. and Yoo P. J. (2015). "Heat Transfer Analysis for Asphalt Mixture Temperature Variation due to Wind Speed" International Journal of Highway Engineering, Vol.19, No.4, pp.33-40 (in Korean).