EVALUATION OF PAVEMENT THERMAL PROPERTIES USING HEAT FLUX SENSOR

熱流束計を用いた舗装の熱特性値の評価方法に関する検討

Temperature change in asphalt concrete affects not only its mechanical properties but the thermal environment of its surroundings. The factors that produce an effect on its temperature are thermal properties. It has been known that thermal diffusion can be estimated from temperature measurements at three different levels. However, utilization of heat flux may serve useful tool to estimate thermal properties, because the temperature change in asphalt composite is caused by heat flow. The objective of this study is examine whether thermal properties (heat capacity, thermal conductivity) can be estimated from two thermocouples and one heat flux sensor located between them.　アスファルト混合物の温度変化は，その力学特性だけでなく，その周辺の熱環境にも大きく影響する．アスファルト混合物層の温度に影響する因子はその熱特性値である．深さが異なる3点でアスファルト混合物層の温度を測定することにより熱拡散率を推定できることは知られている．アスファルト混合物層内部の温度変化は，熱の移動により生じているので，熱流束を活用することも，熱特性値を推定する有効な方法と考えられる．本研究の目的は，上下2個の熱電対に加えて，それらの中間に熱流束計を埋設して，熱流束の変化から熱特性値(熱容量および熱伝導率)を推定できるかを検証することである．

• Record URL:
  • https://doi.org/10.2208/jscejpe.68.I_5
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=EVALUATION+OF+PAVEMENT+THERMAL+PROPERTIES+USING+HEAT+FLUX+SENSOR&author=F.+KAWANA&author=N.+KAWAMURA&author=K.+Matsui&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/21856559
• Authors:
  • KAWANA, Futoshi
  • KAWAMURA, Naoya
  • Matsui, Kunihito
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Web
• Pagination: pp 5-12
• Serial:
  • Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
  • Volume: 68
  • Issue Number: 3
  • Publisher: Japan Society of Civil Engineers
  • ISSN: 2185-6559
  • Serial URL: https://www.jstage.jst.go.jp/browse/jscejpe/-char/en

Subject/Index Terms

• TRT Terms: Asphalt concrete; Asphalt pavements; Backcalculation; Heat flux; Sensors; Temperature; Thermal analysis; Thermal diffusion; Thermal properties
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01504689
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jan 27 2014 9:40AM