It’s not just chemistry—it’s an octopus-like process that coalesces air, weakens concrete, and shortens its life.

The admixtures we loved in the 2000s might not work with today’s cement—and it’s showing up in early failures.

Somewhere along the way, we decided water was the enemy. That shift changed our mixes—and not always for the better.

When someone tells you concrete cracks will “just go away,” you know there’s a serious problem in our industry.

Everyone’s pointing fingers at Type IL cement, but what if your admixtures are the real problem? In this episode, Dr. Jon Belkowitz returns to the Concrete Logic Podcast to challenge the one-to-one replacement myth and shine a light on the role of admixture compatibility. If your concrete is failing early—or…

Everyone’s pointing fingers at Type IL cement, but what if your admixtures are the real problem? In this episode, Dr. Jon Belkowitz returns to the Concrete Logic Podcast to challenge the one-to-one replacement myth and shine a light on the role of admixture compatibility. If your concrete is failing early—or…

Natural pozzolans have long been used out West—but that's starting to change. In this clip, Joseph E. Thomas shares how activated pozzolans are creating new opportunities for East Coast ready-mix and precast producers. The shift is happening. The question is: will your region keep up? To see full episode: www.concretelogicpodcast.com/129

Fly ash might be cheaper—but is it costing you consistency? In this clip, Joseph E. Thomas explains why concrete producers are rethinking natural pozzolans. As fly ash supply drops and quality varies, natural pozzolans are proving to be the more reliable (and less headache-inducing) option, even at a higher price.…

Natural pozzolans might boost durability—but they come with trade-offs. In this clip, Joseph E. Thomas breaks down how natural pozzolans affect water demand in concrete compared to fly ash, and what that means for workability, mix design, and cost. If you're working with DOT specs or slump requirements, this one's…

Roman concrete is still standing after 2,000 years—so what are we doing wrong today? Joseph E. Thomas explains how natural pozzolans not only improve durability but also slash the carbon footprint of concrete by up to 95%. If you’re serious about longevity and sustainability, this clip is worth your time.

Natural pozzolans aren’t just ancient history—they're volcanic in origin and chemically reactive in modern concrete. In this clip, Joseph E. Thomas explains why materials like pumice, tephra, and obsidian can replace cement and still build strength and durability. Learn what makes these volcanic materials so effective and how they compare…

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…

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…

What’s the one skill that separates talkers from true leaders in the concrete industry? Seth Tandett sits down with James Baty, Executive Director of the Concrete Foundations Association, to talk about why communication, listening, and follow-up might be more important than specs and slump tests for your career. They cover…

What’s the one skill that separates talkers from true leaders in the concrete industry? Seth Tandett sits down with James Baty, Executive Director of the Concrete Foundations Association, to talk about why communication, listening, and follow-up might be more important than specs and slump tests for your career. They cover…