A STUDY ON MECHANICAL EFFECTS OF INTERLAYER DEBONDING ON INTERNAL STRESS AND DEFLECTION OF ASPHALT PAVEMENT
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- WAKABAYASHI Yuya
- 国土交通省 国土技術政策総合研究所
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- KAWANA Futoshi
- 東京農業大学 生産環境工学科
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- WATANABE Kazuhiro
- 国土交通省 国土技術政策総合研究所
Bibliographic Information
- Other Title
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- アスファルト舗装の層間はく離が内部応力やたわみに及ぼす力学的影響に関する検討
Description
<p> In recent years, interlayer debonding in asphalt mixtures has been observed in asphalt pavements with early deterioration, and its countermeasures are required. However, it is not clear how interlayer debonding affects pavement deterioration. In this study, we have calculated the stresses inside the pavement by multi-layer elastic analysis in the case of interlayer debonding, and have shown that damage can occur that is not taken into account in conventional pavement design. We have also focused on the deflection of FWD, which is used in many pavement investigations as a non-destructive method to diagnose the pavement structure, and have shown the change in the amount of deflection and the error in the inverse analysis caused by the conventional method in the case of interlayer debonding. Furthermore, we have shown that this error can be corrected by taking into account the interlayer debonding, and have verified the validity with FWD data obtained on the actual road.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
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Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) 76 (2), I_115-I_122, 2020
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390005506404589952
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- NII Article ID
- 130007980626
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- ISSN
- 21856559
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed