EP #129: What Hoover Dam Concrete Can Teach Us Today episode artwork

EPISODE · Aug 5, 2025 · 34 MIN

EP #129: What Hoover Dam Concrete Can Teach Us Today

from Concrete Logic · host Seth Tandett

What if the answer to today’s concrete durability and sustainability challenges isn’t new—but something we left behind decades ago?  In Episode #129 of the Concrete Logic Podcast, host Seth Tandett talks with Joseph E. Thomas, Executive Director of the Natural Pozzolan Association, about a material used in the Hoover Dam and Roman aqueducts: natural pozzolans. Joseph explains how these natural pozzolans are making a quiet comeback and why they may deserve another look. What You'll Learn: - What exactly are natural pozzolans, and how do they compare to fly ash? - Can natural pozzolans genuinely enhance concrete durability? - Why have iconic structures like the Pantheon and Hoover Dam relied on natural pozzolans? - What are the realistic limitations, such as water demand and regional availability? - How natural pozzolans stack up against traditional cement and fly ash. - Emerging trends and the growing role of activated pozzolans in construction. Chapters:  00:00 - Intro  02:15 - Understanding Natural Pozzolans  07:30 - Historical Examples & Real-World Performance  14:05 - Benefits vs. Limitations in Today's Market  20:20 - Challenges: Water Demand & Availability  27:50 - Where Natural Pozzolans Fit in Future Projects  33:15 - Summary & Closing Thoughts  =============================  Take Your Knowledge Further – Join Concrete Logic Academy! Gain access to expert video lessons, live Q&As, and professional development hours (PDHs). Learn what textbooks won’t teach you.  Start Learning: https://www.concretelogicacademy.com Support the Podcast – Be Part of the Concrete Revolution! Help us keep the Concrete Logic Podcast going strong. Your donation helps the entire concrete community get better and smarter. Donate here: https://www.concretelogicpodcast.com/donate Want your company to sponsor the podcast? Learn how: https://www.concretelogicpodcast.com/p/partner-with-concrete-logic-podcast/ Guest Information:  Joseph E. Thomas Executive Director, Natural Pozzolan Association Website: https://www.naturalpozzolan.org Email: [email protected] Producer: Jodi Tandett Music by: Mike Dunton (Instagram: @Mike_Dunton) Stay Connected & Watch More! Host: Seth Tandett Email: [email protected] LinkedIn: https://www.linkedin.com/in/seth-tandett/ YouTube: https://www.youtube.com/@concretelogicpodcast Website: https://www.concretelogicpodcast.com  LIKE, SUBSCRIBE, COMMENT & SHARE for more concrete truth bombs. 

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EP #129: What Hoover Dam Concrete Can Teach Us Today

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How long is this episode of Concrete Logic?

This episode is 34 minutes long.

When was this Concrete Logic episode published?

This episode was published on August 5, 2025.

What is this episode about?

What if the answer to today’s concrete durability and sustainability challenges isn’t new—but something we left behind decades ago?  In Episode #129 of the Concrete Logic Podcast, host Seth Tandett talks with Joseph E. Thomas, Executive Director of...

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