Editorial

We finally got to experience our first full year with no lockdowns or restrictions; transitioning back into a sense of normalcy. Something I know we have all missed very much. Since our last Connections in May, it has been incredible to witness the milestones and achievements of our members. The 2nd half of the year brought incredible triumphs towards radical innovations and sustainability, a mixture for success when it comes to driving the circular economy forward.

First, we begin with a story of the future! Meta has developed a new Artificial Intelligence (AI) model that optimises concrete mixtures for sustainability and strength. Last year, Meta achieved net-zero in their operations. Now, they’re turning their attention to achieving net-zero across their value chain by the end of 2030. Make sure to read about the special way they plan on doing this.

Next up we explain how the Illawarra could help reduce 88% of Australia’s emissions outlined in a new report by the Australian Industry Energy Transitions Initiative (ETI). The report highlights that this immense figure amounts to removing all emissions from cars and light commercial vehicles across Australia. You don’t want to skip past this one.

Keeping the theme of radical innovation and sustainability, ASA member Harsco has announced the world’s first Carbon Negative Steel Slag, an aggregate-based asphalt using lignin binder product made from trees. A very important read that documents the ongoing practices in achieving net-zero.

We share an ongoing project involving ASA member Infrabuild, who continue to supply a suite of capabilities to the world class infrastructure, Sydney Gateway. Their involvement has been critical to the success of the project. Read all about it in this issue.

As we continue to make tremendous steps toward the development of slag, it’s always inspiring to reflect on the past and acknowledge the outstanding projects that have utilised cement replacement products - The Sydney Harbour Tunnel being one of them! This flashback story details the clever design and utilisation of slag products that have guaranteed to stand the test of time.

More recently, we discuss Holcim’s third edition of the Start-up Accelerator Program that aims to accelerate sustainable construction across the world. Looking closer to home, we specifically address the need for embracing Net Zero Goals by 2050 by finding material solution to reduce CO

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footprint of concrete. You can learn all about the intensive 6-month program in this issue.

Have you heard of the High-density Geopolymer Concrete (GPC) at Port Kembla's Northern Breakwater? The University of New South Wales has published its 2nd monitoring report on the in-field performance of GPC. In this issue you can find the critical outcomes documented from the extensive trials.

We also share a local story of ASA member, Australian Steel Mill Services who has joined forces with the University of Wollongong to commence a new research project at the Steel Research Hub. The research entitled ‘Transport Infrastructure Construction Using Steel Furnace Slag (SFS)’ will explore possibilities of utilising SFS in engineering applications and integrating it with by-product materials. Read all about the innovative research project in this issue.

ASA member BlueScope has recently contributed to the revised ResponsibleSteel Standard. A standard that will introduce strict new requirements to reflect the growing need for sustainability measures and responsible sourcing. Make sure to read all the details on The International Standard V2.0

We bring you another blast from the past that is very telling in terms of the research and development that was undertaken at the time, as well as the continuing ‘debate’ on sustainability that ultimately brought us to where we are today. You don’t want to skip past this one.

Next up, ASA member Holcim are currently constructing a facility to import and distribute low carbon cement replacement products. New Zealand currently uses 1.6 million tonnes of traditional cement. However, Holcim is working with the construction industry to achieve 25% replacement by 2025 – reducing 300,000 tonnes per annum. This issue details the exciting infrastructure with peak operations scheduled for the end of 2022.

The 15th Global Slag Conference, Exhibitions and Awards are officially back with a major topic of ‘Maximising Profits from Slag.’ If your business includes slag, make it your business to attend the 15th Global Slag Conference!

Lastly, we present you with a story on our Executive Director Craig Heidrich’s noteworthy virtual presentation at the 11th EUROSLAG Conference. For those who were unable to attend the prestigious event, we have compiled what you need to know about the standard specification for low-carbon concrete using iron and steel slags, as well as the innovative journey the association has embarked on, and the many discoveries made along the way.

Finally, The Australasian (iron & steel) Slag Association would like to say a big thank you to our members for their support and contributions over the past 12 months -- this issue of Connection wouldn’t be possible without your amazing achievements. We look forward to reporting on your 2023 achievements next year and continuing to work together into the future.