| 摘要 |
PCT No. PCT/FR97/01740 Sec. 371 Date Apr. 1, 1999 Sec. 102(e) Date Apr. 1, 1999 PCT Filed Oct. 2, 1997 PCT Pub. No. WO98/14663 PCT Pub. Date Apr. 9, 1998The invention concerns a novel road structure whose bearing part on top of the ground comprises three successive layers of bituminous material bonded with one another, namely: a base layer which rests on the ground with optional insertion of a forming layer of thickness Hi such that: 4 cm</=Hi</=10 cm, and of elastic modulus: Ei; a median layer of thickness Hm such that: 4 cm</=Hm</=20 cm, and of elastic modulus Em such that: 2000 MPa<Em<8000 MPa; and a top layer of thickness Hs such that: 4 cm</=Hs</=10 cm, and of elastic modulus Es, such that elastic moduli of said layers comply with inequality relationships (a) and (b).
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