Engineered Geosynthetic Systems for More Cost-effective, Longer-lasting and Sustainable Construction: Experience in Roads and Airfields

Abstract

Based on field-verification and the experience locally in QLD and globally, the presentation offers sustainable design concepts that can be used by road and airfield asset owners to reduce construction costs and increase asset durability, while also achieving higher operational efficiency through time and process savings on a variety of civil construction projects. It also provides comparative data based on local experience, demonstrating the benefits achieved in asset performance, cost savings, environmental responsibility and operational efficiency. It focuses on applications of specialised geosynthetic reinforcement systems (up to 3,000kN/m) in three different areas as follows: 1. Effective crack mitigation in Asphalt pavements using specialised “Asphalt reinforcement geogrid” system 2. Crack mitigation in Sprayed Seal surfacing using “Chipseal reinforcement geogrid” system 3. Subgrade improvement using “Basal reinforcement geogrid” system with reduced reliance on non-renewable construction materials