ConcreteNexus Webinar: Manufacturing Concrete-grade Fly Ash from Landfilled and Impounded Sources September 15, 2026 | 1:00 - 2:00 pm Eastern | Register High quality concrete-grade fly ash is becoming more difficult to reliably source due to the retirement of coal fired electric generation units. Fly ash remains an important tool for concrete producers to meet demanding specifications while reducing mix cost and improving sustainability. This presentation describes how Separ

ConcreteNexus Webinar: Duracem® N Calcined Clay Blended Cement : Ash Grove’s Next Generation of Enhanced Cementitious Products August 18, 2026 | 1:00 - 2:00 pm Eastern | Register​ Join Ash Grove Cement for an exclusive look at Duracem® N, the company's innovative calcined clay blended cement, and a significant milestone in its commitment to resilient construction. Developed using locally sourced Nebraska clay and designed in collaboration with customers, Duracem® N delivers t

ConcreteNexus Webinar: Closing the Loop - The Science Behind Carbonation and Circular Concrete July 14, 2026 | 1:00 - 2:00 pm Eastern | Register​ Concrete naturally absorbs carbon dioxide (CO₂) from the atmosphere over its lifetime through a chemical process called carbonation, permanently converting the gas into solid calcium carbonate. As part of CalPortland’s ongoing commitment to sustainability, innovation, and lower-carbon construction materials, this presentation will e