EFFECT OF TACK COAT ON BONDING CHARACTERISTICS AT INTERFACE BETWEEN ASPHALT CONCRETE LAYERS

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  • Hachiya Yoshitaka
    社団法人 土木学会 運輸省港湾技術研究所土質部滑走路研究室
  • Umeno Shuichi
    社団法人 土木学会 運輸省第三港湾建設局神戸調査設計事務所技術開発課
  • Sato Katsuhisa
    社団法人 土木学会 長岡工業高等専門学校環境都市工学科

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Other Title
  • アスファルトコンクリートの層間付着におけるタックコートの効果
  • アスファルト コンクリート ノ ソウカン フチャク ニ オケル タック コート

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Description

The effect of a tack coat on the bond between asphalt concrete layers was investigated in the laboratory. First, the stresses at the interface caused by aircraft loads were calculated. Second, the effect of the tack coat on the bond was evaluated by examining the samples taken from in-service airport pavements where the interval between the construction of the wearing and binder courses was different. Third, an influence of factors such as adhered dirt and curing time of tack coat on the bonding characteristics was investigated. Finally, measures to ensure sufficient bonding were developed on trial; satisfactory strength can be obtained by using the newly-developed tack coat.

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