HTS+ in 2024 – what have we been up to?
HTS+ is Heyne Tillett Steel’s self-funded research and innovation initiative, which I have the pleasure of leading. There are now six of us with a variety of skills and experience, including structural engineers, software developers, and we picked up a materials scientist this year too.
While a review of the past year is not the most original idea, I’ve enjoyed putting this together – some of our projects take a long time to complete, as the objectives shift and new information is uncovered, and sometimes it seems like nothing progresses. But looking at this selection, alongside all the projects we have going on now reminds me that’s not the case.
So here's a selection of what we did in 2024 (with links in comments):
🔸 We published the final report and summary conclusions for our research on reusing concrete-encased steel, a project supported by Innovate UK. This concluded that while it’s possible, recovering encased steel is difficult to justify. Please email hts_plus@hts.uk.com for a copy of the report.
🔸 We published a research report on aggregates in UK construction, looking at where they come from, where they are used, and what happens to recycled aggregates. Turns out we could find very little information to account for recycled aggregates. While the industry achieves excellent diversion of construction and demolition waste from landfill, we have almost no data on where it ends up. If anyone does know, please get in touch.
🔸 Following discussion and debate amongst colleagues, we wrote this summary of our current stance on the availability and use of #GGBS in concrete. No doubt this will be updated in the coming years, and we're happy to be involved in groups like the #ACDG and deepening collaboration with the concrete industry.
🔸 We’ve been revisiting concepts like structural reuse and adaptability and approaching them from a new, visual angle (with the help of our in-house graphics expert Rosemary Haggarty. More to share in 2025.
🔸 We’ve been exploring material supply chains to better understand which levers may have the most effect on decarbonising materials. This work will help inform our contributions to the UK Green Building Council (UKGBC) Embodied Ecological Impacts Coalition too.
🔸 We continue to explore reusing concrete. Alongside the Heyne Tillett Steel project engineers, we designed reused concrete slabs as soft spot infills which was included for pricing in a project’s tender documents. A collaboration with 3XN/GXN with valuable input from Charlie Wedgwood.
🔸 We’re continuously updating and improving our project carbon database for ease of use, reporting, graphics, and underlying assumptions. It’s an internal tool that’s bespoke for our modelling workflow but we’re hoping to start publishing aggregated insights next year.
Thanks to the team, to KLH Sustainability and everyone else we’ve collaborated with over the year. We’ve got lots of stuff cooking for 2025 too.