Report

P15_Queensland Trial of High Standard Granular Base TrackStar Alliance Project_ Years 2013/14 - 2016/17

November 24, 2025

A significant portion of the Australian sealed road network is composed of unbound granular pavement layers with a sprayed seal surface. Traditionally, unbound granular pavements are used in rural or light to moderately traffic applications, with higher quality asphalt, stabilised or concrete pavements generally used in urban areas and in more heavily trafficked applications.

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