With quarry reserves across the country, Heidelberg Materials has an unrivaled range of aggregates for your project. Whether you need strong natural rock for functional purposes, or to finish the look of your project, we have a solution for you. Natural and strong gabion and mattress rock The big defender armour rock Recent News Book a 'Waste Safari' at our Wollert Resource Park! Heidelberg Materials Australia broadens footprint with acquisition of Queensland sand operations Heidelberg Materials’ joint venture Cement Australia expands footprint with acquisition of BGC Cementitious Hanson Australia enters a new era with rebrand to Heidelberg Materials