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 your team is just managing problems instead of solving them—this episode is a must-listen.


What You’ll Learn: 

• Why do so many people still believe Type IL is a one-to-one replacement? 
• What’s the real impact of outdated admixtures on today’s cement? 
• How do compatibility tests help prevent concrete failures? 
• Why are some producers thriving with Type IL while others are falling behind? 
• What questions should ready-mix suppliers be asking their admixture reps? 
• Are outdated specifications setting projects up to fail before they start? 
• How is complacency contributing to early-age concrete failures? 

Chapters:
00:00 – Dr. Jon Returns from a New Lab
01:28 – Is Type IL Really Here to Stay?
02:52 – “Type IL Is Here… Unless You’re Willing to Pay”
03:41 – It’s Not the Enemy—but It’s Also Not One-to-One
05:36 – We’ve Been Here Before: Lessons from Cement History
08:00 – Admixtures and Compatibility: What’s Changed?
09:49 – Why Some Ready-Mix Producers Are Struggling
11:40 – The Industry’s Selective Memory
14:33 – What We Used to Do (and Should Again)
16:20 – “The Cracks Just Go Away” – Really?
17:45 – Were the Specs Set Up to Fail?
20:27 – Complacency Is Killing Concrete
22:21 – Selling the 1:1 Myth
24:31 – Systemic Failure, Not Isolated Issues
25:48 – Admixture Air Issues, Surface Failures, and Octopus Talk
26:36 – Time to Rethink Our Admixture Strategies
28:41 – All Admixture Companies Can Help—So Why Aren’t We Asking?
30:09 – You Might Have a Problem…
30:30 – Are We the Third Generation Screwing It All Up?
31:58 – Final Message: Start With the Admixtures

Guest Info:
Dr. Jon Belkowitz
Director of Research, Intelligent Concrete
Email: [email protected]
Website: https://www.intelligent-concrete.com



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Credits:
Host: Seth Tandett


Producers: Matt Gross, Jodi Tandett & Concrete Logic Media


Music: Mike Dunton (Instagram: https://www.instagram.com/mikedunton)



Connect with Us:
Host on LinkedIn: https://www.linkedin.com/in/sethtandett/


YouTube: https://www.youtube.com/@concretelogicpodcast


Website: https://www.concretelogicpodcast.com 


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