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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.243-249, 2003.12 |
Peiwen HAO1 and Yoshitaka HACHIYA2
1 Dr.
Eng., JSPS Fellow, National Institute for Land and Infrastructure Management
(NILIM),
Ministry of Land, Infrastructure and Transport (MOLIT)
(1-1, Nagase 3, Yokosuka 239-0826, Japan)
2 Member of JSCE, Dr. Eng., Head of Airport Facilities Division,
NILIM, MOLIT
A series of laboratory tests was conducted to study the asphalt concrete with better performance for airport pavements, with the following results: (1) Asphalt concrete with modified asphalt has higher dynamic stability and lower cracking susceptibility than that with conventional straight asphalt. (2) The gradation of aggregates highly influences the performance of asphalt concrete. Both stone asphalt concrete and Superpave asphalt concrete show better performance for airport pavements. (3) As compaction effort increases, the air void ratio of asphalt concrete decreases and the stability increases. Increasing the compaction effort gives the asphalt concretes better resistance to both rutting and stripping.
Key
Words: asphalt concrete, modified asphalt, aggregate gradation, compaction,
laboratory test