Tim Kleier (Part 1): The Truth About Concrete, Carbon & Clinker

Concrete is one of the most widely used construction materials in the world - but it's also one of the most debated. In Part 1 of this two-part Building Pulse conversation, Tim Haycock sits down with Tim Kleier, Sustainability & Policy Director at Concrete NZ, to unpack the realities of concrete's carbon footprint, the role of cement and clinker, and the roadmap the industry is following towards net zero. This episode is a technical deep dive into the science, policy and innovation shaping the future of concrete. Topics include supplementary cementitious materials (SCMs), carbon capture, alternative fuels, steel production, embodied carbon and how New Zealand compares with international markets. If you're looking for practical takeaways for builders, architects and developers, stay tuned for Part 2, releasing 17 June, where the conversation shifts from the technical challenges to real-world opportunities and applications. Topics covered: • Concrete's carbon footprint explained • Cement vs concrete - what's the difference? • What is clinker and why does it matter? • Supplementary cementitious materials (SCMs) • Carbon capture and sequestration • Low-carbon steel production • Concrete vs timber • The future of low-carbon construction Watch Part 2 on 17 June. Sponsored by Stackcell and Amcrete. #BuildingPulse #ConcreteNZ #ConstructionInnovation #LowCarbonConcrete #NZConstruction