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We design concrete for 75 years. So why are we okay watching it fail in 12 to 24 months? That’s the uncomfortable question Seth Tandett puts on the table with Dr. Jon Belkowitz in this episode. Codes, specifications, and budgets are still written around a 50–75 year design life. But in the field, concrete surfaces are scaling, wearing, and failing in as little as a year or two. Instead of revisiting that original promise, the industry seems stuck reacting to failures instead of asking why they’re happening. This conversation challenges some long‑held assumptions about specifications, durability, performance testing, and why compressive strength tells us almost nothing about whether concrete will actually last. This isn’t about theory. It’s about what’s showing up on real projects—and why no one seems willing to talk about the gap between what we design for and what we’re getting. WHAT YOU’LL LEARN  · Why the 75‑year design life quietly disappeared from industry conversations  · How concrete surfaces went from 20–30 year service expectations to failing in 12–24 months  · Why compressive strength is one of the most forgiving—and misleading—tests we rely on  · What durability indicators actually matter if service life is the goal  · How prescriptive specs box everyone in and protect no one  · Why performance‑based specifications are the only real path forward  · What Peter Taylor’s work gets right about protecting the concrete surface  · How warranty language misses durability altogether  · Why practical field intelligence keeps getting ignored CHAPTERS  00:00 – Intro and how to support the Concrete Logic Podcast  03:42 – Why we stopped talking about 75‑year design life  06:30 – The disconnect between specs and field performance  08:59 – Why compressive strength doesn’t equal durability  12:07 – The industry’s reliance on paper over field reality  14:34 – Why specifications need to change  15:22 – Prescription vs performance‑based specs  19:12 – What should actually be specified for durability  21:28 – Using performance tests to enforce accountability  25:22 – Warranty periods and real‑world consequences  28:07 – The concrete surface as the first line of defense  31:30 – What the industry really lost—and how to get it back GUEST INFO  Dr. Jon Belkowitz  Intelligent Concrete  https://www.concretelogicpodcast.com/... CONCRETE LOGIC PARTNERS   INTELLIGENT CONCRETE  Concrete not behaving the way it should?  Dr. Jon Belkowitz and the Intelligent Concrete team combine lab‑level testing with real‑world field experience to get to the root cause of performance issues—not just treat the symptoms.  https://www.concretelogicpodcast.com/... CONCRETE LOGIC ACADEMY  Earn PDHs in the same straight‑talk format as the podcast:  https://www.concretelogicpodcast.com/... SUPPORT THE PODCAST  Did you get value out of the show? Give some value back:  https://www.concretelogicpodcast.com/... Buy your KUIU work & hunting gear and 10% goes to the show. No added cost to you: https://www.concretelogicpodcast.com/... Media, sponsorship, or content inquiries: seth@concretelogicpodcast.com CREDITS  Producer: Jodi Tandett & Concrete Logic Media  Music by Mike Dunton:  https://www.mdunton.com/ WHERE TO FIND SETH    / seth-tandett      / @concretelogicpodcast   https://www.concretelogicpodcast.com