
Jon Belkowitz
Dr. Jon Belkowitz, PhD, PE, is Chief Technical Officer at Intelligent Concrete LLC, a concrete research and education consultancy, and a frequent guest on the Concrete Logic podcast.
4
APPEARANCES
1
PODCASTS
012
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Oct 27, 2026
EP #173: Is Fly Ash Helping or Hurting Your Concrete?
8:40
8:54

Jon BelkowitzGUEST
And that's a pretty big assumption because a lot of things could have caused their scaling or their early age cracking issue.

Jon BelkowitzGUEST
Class F fly ash is a coal combustion residue, and that means you start with apparent material, meaning you're Mine and sorry, I'm fumbling for words here.
11 MINS LATER
EP #170: Concrete Silica vs. Silicates: Are You Getting What You Paid For?
6:50
7:22
13:18

Jon BelkowitzGUEST
that and then he well it's science i didn't mean to be right but now that you understand the science of it because he dropped a silicate powder can you answer this lovey a silicate powder onto moisture on his hand and that kicked off the corrosive reaction at very high ph And the same thing is said for concrete.

Jon BelkowitzGUEST
Now, why do we care if it's separated into two people? The contractor only has a one-year warranty and the asset manager who has many-year warranty or has to be concerned about.
6 MINS LATER

Seth TandettHOST
I guess what I was getting at, why are customers asking for a silica? What are they hoping that the silica will do?
EP #164: Concrete Maturity Gone Wrong
14:06
14:21

Jon BelkowitzGUEST
temperature mean? If I took that type 1 cement to a type 3, that's a faster setting cement.

Jon BelkowitzGUEST
Because I'm using a finer cement that kicks off like a bat out of hell when I add water to it, it can set up in lower temperatures.
M
18:53Mike DuttonSOUNDBITE_SPEAKER
degrees Celsius.
EP #161: Should We Stop Designing Concrete for 100 Years?
12:19
12:41

Jon BelkowitzGUEST
Why don't you, can you pull some pictures of Hoboken up that are real pictures? And I would look at, you know, Hoboken in 10th.

Jon BelkowitzGUEST
But while you're talking about that, let's go to a prime example here in Indiana.