Patent ID: 6089783
Filing Date: 2000-07-18
Classification: E01C

Abstract:
A road structure whose bearing part on top of the ground comprises three successive layers of bituminous materials bonded with one another, namely:a base layer which rests on the ground and which has a thickness H.sub.i such that:4 cm.ltoreq.H.sub.i .ltoreq.10 cmand of elastic modulus E.sub.ia median layer of thickness H.sub.m such that:4 cm.ltoreq.H.sub.m .ltoreq.20 cmand of elastic modulus E.sub.m such that:2000 MPa<E.sub.m <8000 MPaa top layer of thickness H.sub.s such that:4 cm.gtoreq.H.sub.s .ltoreq.10 cmand of elastic modulus E.sub.s,said elastic moduli of said layers complying with the following inequality relationships:2<E.sub.i /E.sub.m <10 and 2<E.sub.s /E.sub.m <10.