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【土木学会舗装工学論文集 第8集 2003年12月】 |
舗装工学論文集 Vol. 8, p.13-24, 2003.12 |
Yuzo KURIYAGAWA1, Yosuke KANO2 and Shoichi AKIBA3
1Member
of JSCE, Dr. Eng., Professor, Dept of Civil Eng., College of Industrial
Technology, Nihon University
(1-2-1 Izumi-cho, Narashino City, Chiba Prefecture, Japan 275-8575)
2Student member of JSCE, Graduate School, Dept of Civil Eng.,
College of Industrial Technology, Nihon University
(1-2-1 Izumi-cho, Narashino City, Chiba Prefecture, Japan 275-8575)
3Member of JSCE, Dr. Eng., Lecturer, Dept of Civil Eng., College of
Industrial Technology, Nihon University
(1-2-1 Izumi-cho, Narashino City, Chiba Prefecture, Japan 275-8575)
The aim of this research was to develop an improved recycled asphalt pavement by using reinforcement sheeting to decrease the shortcomings of reclaimed asphalt pavement (RAP), and take advantage of its merits. Evaluation tests showed that the use of reinforcement sheeting in combination with recycled asphalt mixture resulted in a paving material that significantly outperforms virgin asphalt mixture in rutting resistance, crack resistance and serviceability. Concern for the state of the environment has grown considerably in recent years throughout the world. Road construction is no exception to this. This report was submitted in the hope that the proposals it contains would contribute to further promotion and expansion of effective use of recycled asphalt mixture.
Key Words
: renewable material, recycled asphalt mixture, reclaimed asphalt
pavement,reinforcement sheeting, environmental preservation
栗谷川裕造・加納陽輔・秋葉正一
本研究では，舗装発生材の短所を補い長所を活かす改善策として，強化シートを用いた工法に着目し，再生アスファルト混合物（以下，再生材）としての新たな有効利用方法を提案した．この結果，強化シートを適用することで流動抵抗性能，ひび割れ抵抗性能，供用性能において再生材が新材を大きく上回る性能が各工学的評価試験から確認された．近年，再生材が積極的に利用されている一方で，一般的に行われている添加剤を用いた再生方法に関しては各種のバインダーに対する適性や有効性等が未だ不明確である．以上のことを踏まえ，本提案による再生材の有効利用の促進および適用範囲の拡大を期待してこれを報告する．