There is an important role the heavy construction materials industry plays in delivering infrastructure priorities for the South Australian Government. Members of CCAA come together to celebrate the Environment Health and Safety Awards (EHS) at the annual Construction Materials Industry Dinner (CMID).
The Environmental Innovation award was presented to Hallett Concrete for recycling slag, as a replacement fine aggregate source, in a concrete mix specifically designed for the Nyrstar Transformation project. The slag was a by-product of the Nyrstar processes and through proactive action by Hallett was able to be re-used in the concrete mix for the project. This decision, reduced the need to use natural sand, found a use for a by-product and led to valuable transportation savings. Hallett concrete has successfully used over 1000 tonnes of slag so far in delivering the project and is now looking at extending this use to other projects.
The winner of the Environmental Innovation Award was Hallett Concrete for their Reclaimer Surge Bin. Hallett Concrete’s Reclaimer, turns waste concrete into virgin materials, Hallett initially purchased the reclaimer for their internal needs but decided to provide access to the reclaimer to other concrete suppliers. The reclaimer required modifications to allow this increased capacity and as a result, Hallett used a retired semi – agitator bowl as a surge bin. This innovation has dramatically increased production without further upfront cost. It is also ensuring an avenue for waste concrete to be recycled and reused in a sustainable way.
Zero Waste Concrete Plant, Dry Creek