Research of experimental road pavement structures in Lithuania

Abstract

The rapid growth of heavy traffic, the increase in the standard axle load make scientists to look forward for new durable road building materials and their mixes. The continuously increasing need for the strengthening of road pavement structures induces to use new road reconstruction technologies, to search for new methods in constructing pavement structural layers and investigate pavement structures under real conditions. Consequently in summer of 2007 experimental road was constructed in Lithuania. The article presents construction of this experimental road with 24 different pavement structures of 30 metres length. Three pavement structures were subdivided in two parts of 15 metres length. In this three pavement structures different kinds of geosynthetic materials in different layers were used. The article also describes the installation process of stress and strain transducers in different layers of experimental pavement structures and results of stress and strain measurements. Stress and strain measurements are carrying out each time after passage of 20 000 ESAL' s calculated to 100 kN.