Study of alternatives of flexible pavement structures in highways

Résumé

This paper focuses on alternative flexible pavements each having a 30-year life cycle.
Preferred alternatives are those that present the lowest Annual Uniform Equivalent Cost of
Maintenance (C.A.U.E.M.) based on the conditions of study. These alternatives have the
ability to adapt to extreme overloading conditions defined structurally by the DNIT and
AASHTO pavement design method. The FLAPS software is used for the analysis of the
stresses and strains on the pavement layers. This study considered the traffic count obtained
by the DNIT (USACE) and AASHTO methods, incorporating traditional flexible pavement,
semi-rigid pavement, inverted pavement and rigid pavement