The article analyzes the designs of existing transition sections on approaches to bridges and shows a decrease in natural oscillation period subgrade as result strengthening with developed design solutions.

It is well-known that the inclusion of composite geogrids (CGGs) into pavement structure assists to maximise benefits geosynthetic-reinforcement in flexible pavements. However, use CGGs practice limited Queensland, Australia regardless its potential benefits, mainly due absence rational design guidelines. Therefore, this study was conducted develop guidelines unpaved granular pavements/working ...

Spending costs in construction of road pavements has turned this subject into one of the significant points in transportation infrastructure of countries. Concrete slabs consider as a paving method with ability of reducing the rehabilitation needs. Therefore, to manage costs and optimize the thickness of concrete pavements, recognizing the amount of determinative factors’ influence will be requ...

This paper presents an experimental study on evaluating the performance of composite geogrid (CGG) reinforced and unreinforced unpaved pavement models using a steel box that has length width height 1.0 m 1.2 respectively. A subgrade CBR 2.5% (unsoaked) was prepared to thickness 500 mm, then granular base compacted top subgrade. Three course thicknesses, namely 200 300 mm 400 were adopted in thi...