i3P talks with HS2: calcined clay - accelerating low carbon concrete adoption for the UK
Event finished: 26th November 2025
When and where?
12:00pm - 1:00pm
Tickets
The UK construction industry faces major challenges in reducing emissions from cementitious materials amid rising demand and resource constraints. Calcined clay offers a cost-effective, low-carbon alternative reducing embodied carbon by up to 35% and improving resource security.
However, adoption in the UK is limited by technical, economic, and regulatory barriers. This event will explore strategies to break the supply-demand deadlock through industry commitments, funding, and awareness, paving the way for pilot projects and large-scale implementation.
Join us to discuss how calcined clay can help drive the UK’s transition to Net Zero construction.
This meeting will be online via Teams.
Speakers
Charlotte Hills
Head of Innovation at HS2, Charlotte manages a portfolio of more than 250 projects focused on improving cost, carbon, safety and productivity. She has led national efforts to promote the use of calcined clay as a lower carbon alternative to traditional concrete, working closely with the Department for Transport and other industry partners. Charlotte also leads the HS2 Accelerator, supporting collaboration with startups to address delivery challenges and scale new technologies across the supply chain.
Jon Knights
Jon is a consulting materials engineer and concrete technologist with over 30 years of experience on UK and international projects. As Lead Engineer for Materials and Durability at HS2, he focuses on advancing low carbon concretes, particularly through the use of calcined clay as a sustainable cement alternative. He contributes to several national and industry initiatives, including the ICE/CDN Low Carbon Concrete Group, the ICG, DARe Hub and the Innovate UK AMC Programme.
