Austroads has completed a project to replace the obsolete gyratory compactors used in design and quality control testing of asphalt mixes and update its Guide to Pavement Technology Part 4B: Asphalt.

Austroads asphalt mix design procedure currently relies on Gyropac compaction for volumetric mix design. The discontinuation of the Gyropac compactor has resulted in a significant gap in the Austroads asphalt mix design procedure and created a need for a replacement.

The Austroads Asphalt Research Technical Group has identified the Superpave™ gyratory compactor as the most likely replacement for this gap.

The project team undertook a comprehensive literature review and testing of asphalt mixes to understand the relationship between compaction in Gyropac, Servopac (setup to AS/NZS) and Superpave™ gyratory compactors to allow the adoption of the Superpave™ standard gyratory settings in the Austroads mix design procedure.

This webinar, presented by Dr Bevan Sullivan and Sean Dorahy, provided a detailed overview of the project, including the findings of the literature review and test data. There were question and answer opportunities during the session.

Podden och tillhörande omslagsbild på den här sidan tillhör Austroads. Innehållet i podden är skapat av Austroads och inte av, eller tillsammans med, Poddtoppen.