アスファルト舗装における低温き裂の要因について

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タイトル別名
  • Research on Low Temperature Fracturing of Asphalt Pavement.
  • アスファルト ホソウ ニ オケル テイオン キレツ ノ ヨウイン ニ ツイテ

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Various failures occur in asphalt pavements, and researches on these failures were carried out. Most of them were on rutting or fracturing phenomenon, but research on low temperature fracturing, which is very important in cold regions, have been insufficient, as of now. This is mainly due to the fact that circumstances make it extremely difficult to research, including factors, such as material properties, construction conditions, particular kind of structure involved in asphalt pavement, and the prevailing environment.<br>Recently, the authors investigated the relation between low temperature cracking in asphalt pavement in cold regions, such as Hokkaido, and pavement structure with varying properties of asphalt mixture. These researches were carried out in construction fields, and the laboratory, performing simulation analysis of finite element method using visco-elastic program of hybrid type.<br>The authors arrived at the following conclusions in this study: the low temperature fractures in asphalt pavements in cold region depends mainly upon the strain, more so than on the stress, in asphaltic mixture. The low temperature fracture may occur when strain in the asphalt pavement reaches a critical value accompanying relaxation of stress in asphaltic mixture.

収録刊行物

  • 石油学会誌

    石油学会誌 41 (2), 98-106, 1998

    公益社団法人 石油学会

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