Concrete Logic

Seth Tandett

What is the most used manmade material on Earth? You guessed it – concrete. In each episode of Concrete Logic, we will explore one concrete-related topic with the help of industry professionals that are shaping the future of the trade. We’ll talk with suppliers, contractors, architects, engineers, specialists, and even some proponents of competing materials about their views of concrete and their vision of its future.

  1. EP #158: Why New Concrete Fails Faster Than the Old Stuff (And How to Fix It)

    HACE 2 DÍAS

    EP #158: Why New Concrete Fails Faster Than the Old Stuff (And How to Fix It)

    THIS EPISODE IS BROUGHT TO YOU BY: GPRS GPRS helps keep your jobsite safer by locating what is hidden before you cut, core, trench, or drill. Click the GPRS image on the Concrete Logic Podcast website or go here: https://www.concretelogicpodcast.com/gprs ON THIS EPISODE OF THE CONCRETE LOGIC PODCAST Spring is when concrete starts telling the truth. After months of cold weather, snow, ice, rain, deicers, and freeze-thaw abuse, your existing concrete may start showing what it went through all winter. In this episode, Dr. Jon Belkowitz joins the show to talk about what to look for when the weather warms up. Scaling. Flaking. Blotchy spots. Exposed aggregate. White staining. ASR gel. Rust bleeding from cracks. All of it is concrete trying to tell you something. Some of it may be surface damage. Some of it may be a sign of a much bigger problem inside the concrete. And if you wait until the damage is obvious, you may already be late. WHAT YOU’LL LEARN Why spring and early summer act like a “lie detector” for existing concreteWhy damaged concrete often looks darker or blotchy after rainWhat scaling, flaking, and surface loss can tell you about winter damageWhy broom finish disappearance may be a warning signHow ASR cracks hold water and reveal themselves after rainWhat white staining and gel coming out of cracks may meanWhy some concrete problems cannot simply be cleaned off or sealed overHow wetting, drying, deicing salts, and outside contaminants can keep feeding deteriorationWhy extending the life of existing concrete may be one of the most practical “green” moves in constructionCHAPTERS 00:00 Introduction  02:52 What warm weather reveals about existing concrete  03:39 Concrete as a springtime lie detector  04:26 Why newer concrete may look white, blotchy, or damaged  05:22 Scaling, flaking, and lost broom finish  06:01 Why rain makes concrete damage easier to see  07:10 Why damaged concrete holds water  08:25 Rust, staining, and visible cracks  09:02 Spillways, white streaks, and concrete exudation  10:36 Alkali-carbonate reaction and internal concrete problems  11:27 What “oozing” gel from cracks means  12:43 Why cleaning the surface does not fix internal damage  13:00 Slowing deterioration versus fixing it  14:21 The practical side of reducing concrete’s carbon footprint  15:11 How ASR cracks grow and spread  16:15 ASR research and gel morphology  17:17 Protecting concrete from outside contaminants  18:21 Concrete Logic Academy and PDH reminder  19:39 Closing thoughts GUEST INFO Dr. Jon Belkowitz  Intelligent Concrete  https://www.concretelogicpodcast.com/guests/dr-jon-belkowitz/ CONCRETE LOGIC ACADEMY Most concrete problems do not show up out of nowhere. They start with bad assumptions, missed warning signs, and people not knowing what they are looking at until the problem is already expensive. Concrete Logic Academy was built for the people who want to catch those problems earlier. Practical concrete training. PDH courses. Real-world education from people who actually understand the work. If you want to get better at reading concrete, asking better questions, and spotting issues before they turn into claims, start here: https://www.concretelogicpodcast.com/concreteschool SUPPORT THE PODCAST If the Concrete Logic Podcast has helped you think differently about concrete, consider supporting the show. You can make a one-time donation, become a monthly supporter, or share the podcast with someone in the industry who needs to hear it. https://www.concretelogicpodcast.com/support/ You can also support the show through the KUIU affiliate link: https://www.concretelogicpodcast.com/kuiu CREDITS Producers: Jodi Tandett & Concrete Logic Media  Music by Mike Dunton: https://www.mdunton.com/ WHERE TO FIND SETH Concrete Logic Podcast: https://www.concretelogicpodcast.com/ YouTube: https://www.youtube.com/@concretelogicpodcast Concrete Logic Academy: https://www.concretelogicacademy.com/   Until next time, let’s keep it concrete.

    26 min
  2. EP #157: Low-Carbon Concrete - Does the Math Actually Work?

    14 MAY

    EP #157: Low-Carbon Concrete - Does the Math Actually Work?

    THIS EPISODE IS BROUGHT TO YOU BY: GPRS Before you cut, core, drill, or excavate, make sure you know what is inside the concrete. GPRS helps contractors locate rebar, conduit, post-tension cables, utilities, and other hidden hazards before they become expensive problems. Their scans help reduce hits, downtime, expenses, and keep your people safe.  Learn more here:  https://www.concretelogicpodcast.com/gprs  ON THIS EPISODE OF THE CONCRETE LOGIC PODCAST Low-carbon cement sounds good on paper. But can it actually compete in the real concrete market without subsidies, mandates, or customers paying a “green premium”? That is the question Seth gets into with Ryan Gilliam, CEO of Fortera. Ryan explains how Fortera’s approach differs from many other low-carbon cement companies by bolting onto existing cement plants, using limestone as the feedstock, and turning CO₂ back into a reactive cementitious product. This conversation gets into the hard part of low-carbon cement: economics, field performance, scaling, ready-mix adoption, policy risk, and whether these products can survive when the market stops caring about the carbon story. Ryan makes the case that the future of low-carbon cement will not be built on guilt, regulation, or good intentions. It has to perform. It has to be cost competitive. And it has to work in the field.  WHAT YOU’LL LEARN  • Why “green cement” usually makes contractors and producers assume there is a compromise  • How Fortera’s technology bolts onto existing cement plants instead of replacing them  • Why limestone loses roughly 44% of its weight as CO₂ during traditional cement production  • How Fortera claims to turn that CO₂ back into cementitious material  • Whether Fortera’s product should be thought of as an SCM, a cement replacement, or a new cement  • Why ready-mix producers are skeptical of alternative cements  • What field feedback Fortera has received on finishing, flow, pumping, set time, and cracking  • Why Ryan does not believe customers will pay large green premiums  • How policy changes could impact demand for low-carbon cement  • Why carbon capture usually struggles economically  • How Fortera’s approach differs from traditional carbon capture and storage  • What has to be true for low-carbon cement companies to scale  • Why first commercial plants are such a hard step for new cement technologies  • Why Ryan believes performance, not carbon marketing, will decide which technologies survive  CHAPTERS 00:00 Introduction to Ryan Gilliam and Fortera 03:25 Ryan’s background in materials engineering and cement research 05:20 Fortera’s approach to low-carbon cement 08:28 Is Fortera’s product an SCM or a new cement? 09:23 Blended cement use versus 100% product use 10:33 What is driving demand for low-carbon cement? 13:39 Scaling challenges for new cement technologies 15:43 Field feedback on alternative cement performance 18:58 Type IL rollout, skepticism, and contractor pushback 20:07 Policy risk and whether low-carbon demand depends on regulation 22:18 How Fortera captures CO₂ from limestone 23:07 Why the economics may work 24:41 How this differs from traditional carbon capture 25:45 What cement plants need to adopt the technology 28:07 Fortera’s history and lessons from earlier attempts 29:00 How Fortera may go to market 30:20 Ryan’s main takeaway for the concrete industry 32:09 How to contact Ryan Gilliam  GUEST INFO  Ryan Gilliam  CEO, Fortera  Profile: https://www.concretelogicpodcast.com/guests/ryan-gilliam/  CONCRETE LOGIC ACADEMY  If you work in concrete and want practical education that actually connects to the jobsite, check out Concrete Logic Academy.  This is not theory for the sake of theory.  It is concrete education built around the stuff producers, contractors, engineers, and field leaders deal with every day.  Specs. Mixes. Placement. Finishing. Troubleshooting. Materials. Durability. Bad assumptions. Costly mistakes.  Get access here:  https://www.concretelogicpodcast.com/concreteschool  SUPPORT THE PODCAST  Concrete Logic runs on a value-for-value model.  If this episode helped you think through low-carbon cement, alternative cement technology, or what might actually work in the real market, send some value back.  Donate here:  https://www.concretelogicpodcast.com/support/ You can also support the show through KUIU: https://www.concretelogicpodcast.com/kuiu For sponsorship or media opportunities, contact: seth@concretelogicpodcast.com  CREDITS  Producers: Jodi Tandett & Concrete Logic Media  Music: Mike Dunton  https://www.mdunton.com/  WHERE TO FIND SETH  Concrete Logic Podcast:  https://www.concretelogicpodcast.com YouTube: https://www.youtube.com/@concretelogicpodcast LinkedIn: https://www.linkedin.com/in/seth-tandett/   Like, subscribe, comment, and share the episode with someone in the concrete industry who needs to hear it. (Correction: At the 33:42 mark, Ryan referenced testing that reported a compressive strength of 10,000 psi. After recording, the testing result was later determined to be incorrect. The corrected result was approximately 6,000 psi.)

    39 min
  3. EP #156: Is Rebar Killing Your Concrete Schedule?

    7 MAY

    EP #156: Is Rebar Killing Your Concrete Schedule?

    THIS EPISODE IS BROUGHT TO YOU BY: GPRS Before you cut, core, drill, or trench through concrete, know what is inside it. GPRS helps contractors locate rebar, conduit, post-tension cables, voids, and other hidden hazards before they become expensive problems. Their ground-penetrating radar scanning helps reduce hits, downtime, expenses, and keeps your people safe. Learn more here:  https://www.concretelogicpodcast.com/gprs ON THIS EPISODE OF THE CONCRETE LOGIC PODCAST Everyone wants concrete work done faster. But what if one of the biggest schedule killers is not the pour, the weather, or the labor shortage? What if it starts with the reinforcement choice? In this episode, Seth talks with TJ Lambert of Forta about how reinforcement decisions affect labor, sequencing, inspections, procurement, finishing, mix design, carbon reporting, and overall project speed. They discuss where fiber-reinforced concrete fits, where it does not, and why engineers, producers, and contractors need to think beyond “replace the bar and move on.” WHAT YOU’LL LEARN Why reinforcement choices can slow a concrete project down before the first truck shows upHow fibers can reduce labor, congestion, inspection steps, and field coordinationThe difference between microfibers, macro synthetic fibers, and steel fibersWhere fiber reinforcement makes sense, and where traditional rebar still belongsHow concrete producers handle fiber dosing at the plant or into the truckWhy fiber-reinforced concrete can help contractors place more mud fasterHow EPDs, LCAs, GWP targets, and Buy America requirements are showing up in reinforcement decisionsWhy finishing fiber-reinforced slabs still depends on timing, mix design, vibration, and field conditionsHow Type IL cement may affect finishing timing, saw cutting, paste, and surface performanceWhat engineers need to know about ACI 544, ACI 360, ACI 330, and ACI 318 when considering fiber designsCHAPTERS 00:00 Introduction: Can reinforcement choices kill your schedule? 04:02 What Forta does and how fiber-reinforced concrete fits 05:01 Why reinforcement choices affect schedule more than people realize 08:42 What fibers look like in the field 11:57 Matching fiber type to the right concrete application 13:26 What fiber use means for concrete producers 16:45 Fiber loading, truck mixing, and added time at the plant 17:17 How much time can contractors save by eliminating bar placement? 19:47 EPDs, GWP, and carbon reduction with fiber reinforcement 22:13 Why finishers struggle with some fiber-reinforced slabs 26:43 Type IL cement, paste, timing, and fiber finishing concerns 30:05 Fly ash, slag, mix design complexity, and owner expectations 31:54 What engineers need to understand before using fibers 35:03 TJ’s main takeaway: Start with design, not just substitution 37:06 How to contact TJ Lambert GUEST INFO TJ Lambert Sales Engineering Manager, Forta / Helix Steel Profile: https://www.concretelogicpodcast.com/guests/tj-lambert/ Forta website: https://fortacorp.com Helix Steel website: https://helixsteel.com CONCRETE LOGIC ACADEMY Concrete Logic Academy is built for people who actually work with concrete. Not theory for theory’s sake. Not another seminar full of recycled slides. Not some polished presentation from people who have not been near a pour in years. This is practical concrete education for contractors, producers, engineers, architects, QC teams, plant managers, finishers, and anyone else who has to make decisions before the mud hits the ground. If you want to better understand mixes, specs, reinforcement, troubleshooting, field problems, and how to make better calls on real projects, check it out. Start here: https://www.concretelogicpodcast.com/concreteschool SUPPORT THE PODCAST If the Concrete Logic Podcast helps you think differently, solve a problem, avoid a mistake, or make a better decision, send some value back. That could be $5.  That could be $50.  That could be more. The point is simple. If the show is worth something to you, help keep it going. Donate here:  https://www.concretelogicpodcast.com You can also support the show through our KUIU affiliate link: https://www.concretelogicpodcast.com/kuiu Interested in sponsoring the podcast or working with Concrete Logic Media? Email Seth: seth@concretelogicpodcast.com CREDITS Producers: Jodi Tandett & Concrete Logic Media  Music by Mike Dunton: https://www.mdunton.com/ WHERE TO FIND SETH Concrete Logic Podcast:  https://www.concretelogicpodcast.com YouTube: https://www.youtube.com/@concretelogicpodcast LinkedIn: https://www.linkedin.com/in/seth-tandett/ Like, subscribe, comment, and share the episode with someone who works around concrete.

    40 min
  4. EP #155: EPDs, Data Centers, and the New Paperwork Hitting Concrete Producers

    30 ABR

    EP #155: EPDs, Data Centers, and the New Paperwork Hitting Concrete Producers

    This episode is brought to you by GPRS. GPRS helps keep your projects moving by locating what is hidden before you cut, core, drill, or trench. From ground-penetrating radar and utility locating to concrete scanning and 3D laser scanning, GPRS gives contractors better information before work starts. Learn more or request a quote here:  https://www.concretelogicpodcast.com/gprs ON THIS EPISODE OF THE CONCRETE LOGIC PODCAST Ready-mix producers are being asked for EPDs more often, especially on data center and large infrastructure projects. But what are EPDs? Who is asking for them? And why should a small producer care? In this episode, Seth talks with Leise Sandeman, co-founder of Pathways, about Environmental Product Declarations, life cycle assessments, carbon reporting, and how these requirements are starting to affect concrete bids. Leise explains EPDs in plain language: what data goes into them, how cement, aggregate, admixtures, water, fuel, electricity, and transportation all get measured, and why producers should not assume this is only a “green building” paperwork exercise. The big point? EPDs are becoming part of how some owners, GCs, and hyperscale data center companies compare concrete producers. And for smaller ready-mix companies, the risk is not just the carbon number. It is being left out of the bid entirely because they do not have the documentation ready. WHAT YOU’LL LEARN What is an EPD?Why are data center owners asking concrete producers for EPDs?How does a life cycle assessment connect to a concrete mix?What data does a ready-mix producer need to create an EPD?Why can two plants from the same producer have different EPD numbers?How much of a concrete EPD is driven by cement?Are owners comparing concrete producers against each other?Why might simply having an EPD help a producer win work in some markets?How could EPDs affect smaller 2-to-10-plant ready-mix operations?Why does Leise think EPDs are becoming more about business than climate messaging?CHAPTERS 00:00 - Intro and Concrete Logic Podcast support  03:15 - Who Leise Sandeman is and what Pathways does  03:52 - What is an EPD?  04:35 - Who is asking for EPDs?  05:54 - Where EPDs came from and how LCAs fit in  06:48 - Comparing concrete to other materials and other producers  07:36 - How cement and material supplier data affect EPDs  08:33 - Why EPDs involve a lot of math and manual work  09:07 - Generic EPDs vs producer-specific EPDs  10:09 - The three major data inputs for a concrete EPD  11:24 - Why utility and grid data matter  12:07 - What owners and hyperscalers compare  13:48 - How far the life cycle assessment goes  15:28 - How cement EPDs are built  16:12 - Does the EPD stop at placement?  17:16 - End-of-life questions and future standards  18:42 - Concrete’s carbon footprint vs material volume  20:29 - Why supplier choices can change the EPD number  21:21 - Why smaller producers need a simpler path  23:42 - Where EPD requirements may be heading  24:04 - Why EPD publishing is expected to grow  25:21 - Future inputs, fuels, SCMs, and supplier options  26:34 - How to contact Leise and Pathways GUEST INFO Leise Sandeman  Guest Profile:  https://www.concretelogicpodcast.com/guests/leise-sandeman/ CONCRETE LOGIC ACADEMY Tired of getting your concrete education from a PowerPoint presentation given by some guy who has probably never stepped in mud? Or someone who does not know what diesel smells like next to that first chute of concrete in the predawn darkness? That is why Concrete Logic Academy exists. It is built by people who understand the field, the plant, the jobsite, and the real problems concrete professionals deal with every day. The courses are practical, direct, and built for people who want to apply what they learn right away. Inside the Academy, you get access to PDH courses, quizzes, resources, live Q&A, early access to podcast episodes, and a place to ask concrete questions without throwing them out into the LinkedIn circus. For a limited time, get free access to the Concrete Logic Academy here:  https://www.concreteschool.co   SUPPORT THE PODCAST The Concrete Logic Podcast runs on a value-for-value model. If the show gives you something useful, send some value back. Donate here:  https://www.concretelogicpodcast.com/support/ Want to support the show another way? Check out KUIU through the Concrete Logic link:  https://www.concretelogicpodcast.com/kuiu Interested in sponsoring the podcast or working with Concrete Logic Media?  Email: seth@concretelogicpodcast.com CREDITS Host: Seth Tandett  Producers: Jodi Tandett & Concrete Logic Media  Music: Mike Dunton  https://www.mdunton.com/ WHERE TO FIND SETH Concrete Logic Podcast Website:  https://www.concretelogicpodcast.com/ YouTube:  https://www.youtube.com/@concretelogicpodcast LinkedIn:  https://www.linkedin.com/in/seth-tandett/ Like, subscribe, comment, and share the episode if it helped you understand where EPDs are headed in concrete.

    34 min
  5. EP #154: Why Concrete Is on the Critical Path for AI Data Centers

    21 ABR

    EP #154: Why Concrete Is on the Critical Path for AI Data Centers

    PRESENTED BY: GPRS Construction professionals know that utilities and concrete reinforcements can cause big problems when you’re on the job. GPRS helps you avoid them. We use ground penetrating radar to detect rebar, conduit, and post tension cables before you cut, core, or drill. And our concrete scans are 99.8% accurate - we guarantee it - helping you reduce hits, downtime, expenses, and keep your people safe. To keep your jobsite safer, visit: https://www.concretelogicpodcast.com/GPRS SUMMARY Data centers may look like simple boxes, but the race to build them is changing everything for concrete. In this episode, Doug Mouton explains why concrete is still one of the most important materials in the data center boom, even if it is only a small slice of the total cost. He breaks down what is driving the explosion in hyperscale and AI data centers, why projects are moving into rural areas, and why concrete supply, logistics, and mix design need to be thought through much earlier than most teams are used to. This is a big-picture episode, but it gets practical fast. If you work in concrete and want to understand where the data center market is headed and what owners actually want, this one will help. WHAT YOU’LL LEARN Why data centers are growing so fast right nowWhat a data center actually is and how it worksWhy AI is pushing demand far beyond traditional cloud computingWhy more data centers are being built in rural areasHow labor, materials, and logistics get harder as projects move farther outWhy concrete becomes a critical path item even if it is a small part of total project costWhat hyperscale owners want from concrete suppliers and contractorsWhy speed, cost, and lower embodied carbon are all being pushed at the same timeWhy leaner structural designs may be the easiest way to reduce concrete useWhy concrete supply needs to be planned much earlier on gigascale projectsHow power infrastructure is creating even more demand for concreteWhat future energy storage systems could mean for the concrete industry CHAPTERS 00:00 - Intro and Doug Mouton’s background01:20 - How to support the podcast03:20 - Why concrete matters so much to data center growth05:26 - What a data center actually is06:30 - Why cloud computing changed everything08:20 - How AI is driving a second wave of data center demand09:41 - Why more data centers are moving into rural areas11:20 - Rural pushback, trucking, roads, and local disruption12:32 - Why rural projects make labor and materials even harder13:15 - What owners and developers actually want from concrete15:05 - Speed, ESG pressure, and embodied carbon goals16:05 - Why concrete procurement is still too fragmented18:00 - Why concrete suppliers need a seat at the table earlier19:02 - How leaner design can cut carbon, cost, and schedule20:13 - Seth’s skepticism on new low-carbon materials at scale21:39 - Why scale and supply chain reality still matter22:05 - Why concrete planning should start at the very beginning23:32 - How power infrastructure creates even more concrete demand24:05 - Massive towers, gravity batteries, and future energy storage ideas25:00 - Using AI to make steel and rebar design more efficient25:35 - Will data centers get smaller, denser, and stiffer?26:20 - Wrap-up and final thoughtsGUEST INFO Douglas Mouton Mouton Advisory Services https://www.concretelogicpodcast.com/guests/douglas-mouton/   CONCRETE LOGIC ACADEMY Need PDHs that are actually worth your time?   The Concrete Logic Academy is built for engineers, contractors, and concrete professionals who want practical training they can actually use - not another boring seminar that gets forgotten by tomorrow.   Use it for PDHs. Use it for lunch and learns. Use it to get smarter on concrete without wasting half your day.   Real topics. Real field problems. Real conversations.   Start your free trial here: https://www.concretelogicpodcast.com/pro SUPPORT THE PODCAST If this episode helped you...  If you learned something...  If it made you think differently... Support the show here: https://www.concretelogicpodcast.com/donate This podcast runs on Value for Value. Give whatever you think the episode was worth. PARTNERS KUIU (performance gear Seth actually uses): https://www.concretelogicpodcast.com/kuiu Interested in advertising or working with us? Email: seth@concretelogicpodcast.com CREDITS Producers: Jodi Tandett & Concrete Logic Media Music by Mike Dunton: https://www.mdunton.com/ WHERE TO FIND CONCRETE LOGIC Website: https://www.concretelogicpodcast.com YouTube: https://www.youtube.com/@concretelogicpodcast LinkedIn: https://www.linkedin.com/in/sethtandett/ Instagram: https://www.instagram.com/concretelogicpodcast/

    34 min
  6. EP #153: Your Concrete Mix Design Still Isn’t Ready… Until You Do This

    14 ABR

    EP #153: Your Concrete Mix Design Still Isn’t Ready… Until You Do This

    PRESENTED BY: GPRS Construction professionals know that utilities and concrete reinforcements can cause big problems when you’re on the job. GPRS helps you avoid them. We use ground penetrating radar to detect rebar, conduit, and post tension cables before you cut, core, or drill. And our concrete scans are 99.8% accurate - we guarantee it - helping you reduce hits, downtime, expenses, and keep your people safe. To keep your jobsite safer, visit: https://www.concretelogicpodcast.com/GPRS SUMMARY Last episode, Dr. Jon Belkowitz walked through how to build a concrete mix design on paper. This episode picks up where that left off. Because a design mix is not the same thing as a batch mix. Dr. Jon breaks down the final adjustments that have to happen before that mix can actually be used in production, including moisture corrections, free water, and admixture dosages. If you have ever wondered how a mix goes from a neat set of numbers on paper to something a plant can actually batch, this episode clears it up. WHAT YOU’LL LEARN   Why a design mix is not the same as a batch mix  How aggregate moisture changes your sand and rock weights  What “free water” really means and why it matters  How moisture in the aggregates affects water-cement ratio  How to calculate the water coming from sand and stone  How admixture dosage is calculated from cement content  Why admixtures also add water to the mix  How to calculate final batch water  What the final adjusted batch mix looks like  Why contractors and engineers should understand this math even if the plant computer does it for them  CHAPTERS  00:00 - Intro and how to support the show  02:15 - Why people are actually using the podcast on the job  02:36 - Concrete Logic Academy and PDHs  03:36 - Picking up where the last mix design episode ended  04:22 - What has to change to move from design mix to batch mix  05:44 - The project assumptions for this slab mix  06:28 - Where moisture content and absorption values come from  08:13 - Adjusting sand weight for moisture  10:54 - Adjusting rock weight for moisture  12:05 - What free water is and why it affects your mix  13:24 - Calculating free water from the sand  14:33 - Calculating free water from the rock  15:24 - Admixture dosage explained  16:16 - Calculating admixture ounces per cubic yard  17:28 - Calculating how much water the admixture brings  18:47 - Final batch water calculation  19:34 - Final adjusted batch mix  20:38 - What happens next at the plant  21:03 - Why admixtures are mostly water  24:51 - Withholding water and adjusting slump at the plant  26:53 - How admixture dispensing systems work  29:25 - Wrap-up and what to cover next time  GUEST INFO Dr. Jon Belkowitz Intelligent Concrete Website: https://www.concretelogicpodcast.com/intelligent-concrete CONCRETE LOGIC ACADEMY Got a concrete problem no one can explain? Bring it to the Concrete Logic Academy. Ask questions. Share what you’re seeing. Get real answers you can use on the next pour. Simple as that. Free trial for pros here: https://www.concretelogicpodcast.com/pro SUPPORT THE PODCAST If this episode helped you... If you learned something... If it made you think differently... Support the show here: https://www.concretelogicpodcast.com This podcast runs on Value for Value. Give whatever you think the episode was worth. PARTNERS KUIU (performance gear Seth actually uses): https://www.concretelogicpodcast.com/kuiu Interested in advertising or working with us? Email: seth@concretelogicpodcast.com CREDITS Producers: Joseph Swann, Jodi Tandett & Concrete Logic Media Music by Mike Dunton: https://www.mdunton.com/ WHERE TO FIND CONCRETE LOGIC Website: https://www.concretelogicpodcast.com YouTube: https://www.youtube.com/@concretelogicpodcast LinkedIn: https://www.linkedin.com/in/sethtandett/ Instagram: https://www.instagram.com/concretelogicpodcast/

    37 min
  7. EP #152: Concrete Mix Design Isn’t Complicated… Here’s the Proof

    2 ABR

    EP #152: Concrete Mix Design Isn’t Complicated… Here’s the Proof

    PRESENTED BY: GPRS Construction professionals know that utilities and concrete reinforcements can cause big problems when you’re on the job. GPRS helps you avoid them. We use ground penetrating radar to detect rebar, conduit, and post tension cables before you cut, core, or drill. And our concrete scans are 99.8% accurate… we guarantee it—helping you reduce hits, downtime, expenses, and keep your people safe. To keep your jobsite safer, visit https://www.concretelogicpodcast.com/GPRS SUMMARY If you’ve never built your own concrete mix design… this episode fixes that. Dr. Jon Belkowitz walks through the ACI 211 method step-by-step, showing exactly how a mix is built from scratch. By the end, you’ll see that mix design isn’t magic. It’s just decisions… and a little math. WHAT YOU’LL LEARN What actually goes into a cubic yard of concrete — and why it mattersWhy mix design is basically a “choose your own adventure”How slump, aggregate size, and air content drive your entire mixThe simple math behind water-cement ratio (and why it controls everything)How to calculate cement, water, rock, and sand — step by stepWhy yield matters (and how getting it wrong costs real money)The difference between a design mix vs batch mixWhat changes when moisture shows up in your aggregates (this comes up near the end)  CHAPTERS 00:00 – Intro and how to support the show 02:20 – Shoutout to this episode’s Producer 03:00 – Why PDHs should actually be useful 05:20 – What is a cubic yard of concrete? 06:30 – Absolute volume method explained 09:50 – ACI 211 and “choose your own adventure” 13:30 – Selecting slump, water, and air content 17:00 – Adjusting water for admixtures 19:00 – Water-cement ratio and strength 21:00 – Aggregate proportions and why they matter 25:30 – Start of the actual math 31:30 – Calculating coarse aggregate 34:00 – Converting weights to volumes 36:30 – Solving for sand (the missing piece) 39:30 – Final mix design breakdown 40:10 – Design mix vs batch mix (what’s next) GUEST INFO Dr. Jon Belkowitz Intelligent Concrete Website: https://www.concretelogicpodcast.com/intelligent-concrete CONCRETE LOGIC ACADEMY Got a concrete problem no one can explain? Bring it to the Concrete Logic Academy. Ask questions. Share what you’re seeing. Get real answers you can use on the next pour. Simple as that. Free trial for pros here: https://www.concretelogicpodcast.com/pro SUPPORT THE PODCAST If this episode helped you… If you learned something… If it made you think differently… Support the show here: https://www.concretelogicpodcast.com This podcast runs on Value for Value. Give whatever you think the episode was worth. PARTNERS KUIU (performance gear Seth actually uses): https://www.concretelogicpodcast.com/kuiu Interested in advertising or working with us? Email: seth@concretelogicpodcast.com CREDITS Producers: Joseph Swann, Jodi Tandett & Concrete Logic Media Music by Mike Dunton: https://www.mdunton.com/ WHERE TO FIND CONCRETE LOGIC Website: https://www.concretelogicpodcast.com YouTube: https://www.youtube.com/@concretelogicpodcast LinkedIn: https://www.linkedin.com/in/sethtandett/ Instagram: https://www.instagram.com/concretelogicpodcast/

    49 min
  8. EP #151: Most Concrete Durability Problems Start Here (Alkalinity Explained)

    24 MAR

    EP #151: Most Concrete Durability Problems Start Here (Alkalinity Explained)

    PRESENTED BY: GPRS Construction professionals know that utilities and concrete reinforcements can cause big problems when you’re on the job. GPRS helps you avoid them. We use ground penetrating radar to detect rebar, conduit, and post tension cables before you cut, core, or drill. And our concrete scans are 99.8% accurate… we guarantee it—helping you reduce hits, downtime, expenses, and keep your people safe. To keep your jobsite safer, visit https://www.concretelogicpodcast.com/GPRS SUMMARY Concrete strength gets all the attention. But what if the real driver of concrete performance isn’t strength at all? In this episode of the Concrete Logic Podcast, Bob Higgins returns to talk about alkalinity — the chemical environment inside concrete that may control moisture behavior, curing, permeability, and long-term durability. Bob explains why alkalinity is often confused with pH, why salts inside concrete can trap moisture that testing methods never see, and why modern cement chemistry may be quietly changing how concrete cures and performs. If you’ve ever wondered why concrete behaves differently today than it did decades ago, this conversation will make you think. WHAT YOU’LL LEARN · What alkalinity actually means in concrete chemistry  · Why pH and alkalinity are not the same thing · The two alkaline salts that control moisture behavior in concrete · Why salts can trap moisture that RH tests can’t detect · How high alkalinity can lead to permeable, weaker surface concrete · The difference between porosity and permeability · Why precast heat curing can change long-term durability · Why compressive strength often fails as a durability indicator · How cement kiln dust may have increased alkalinity in modern cement CHAPTERS 00:00 Introduction  02:20 What alkalinity means in concrete  03:10 Why salts control moisture behavior  07:40 Why RH probes can miss trapped moisture  10:20 Calcium hydroxide vs sodium hydroxide  14:00 Self-desiccation and modern cement chemistry  18:00 Where alkalinity in concrete comes from  23:30 Signs of high alkalinity in concrete  24:00 Why precast surfaces can be more permeable  26:00 Porosity vs permeability explained  29:00 Why compressive strength can mislead durability  31:20 Why sealers often fail long term  33:00 Alkali-silica reaction explained  35:00 Why alkalinity isn’t being studied enough  38:00 Why RH specifications often don’t make sense  39:00 Preview: additional forms of moisture in concrete   GUEST Bob Higgins Chief Scientist https://www.concretelogicpodcast.com/guests/robert-higgins/ CONCRETE LOGIC ACADEMY If you like what you’re learning on the podcast, the Concrete Logic Academy Unlimited Pro Membership is where it all comes together. We take the topics you hear on the show and turn them into structured courses—with real explanations, supporting material, and quizzes so you actually retain it. Most people in this industry learn by trial and error. This is how you get ahead without paying for mistakes. Many courses qualify for PDHs and CEUs. Start your free trial here:  https://www.concretelogicpodcast.com/pro   SUPPORT THE PODCAST If the Concrete Logic Podcast has helped you learn something new or connect with someone in the industry, consider supporting the show. Donate here:  https://www.concretelogicpodcast.com/support Looking for great hunting or work gear: https://www.concretelogicpodcast.com/kuiu Interested in advertising or media services? https://www.concretelogicpodcast.com/partner-with-concrete-logic-podcast/ CREDITS Producers: Jodi Tandett, Concrete Logic Media Music by Mike Dunton  https://www.mdunton.com/ WHERE TO FIND SETH Website: https://www.concretelogicpodcast.com LinkedIn: https://www.linkedin.com/in/sethtandett/ YouTube: https://www.youtube.com/@concretelogicpodcast Until next time, let’s keep it concrete!

    47 min
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What is the most used manmade material on Earth? You guessed it – concrete. In each episode of Concrete Logic, we will explore one concrete-related topic with the help of industry professionals that are shaping the future of the trade. We’ll talk with suppliers, contractors, architects, engineers, specialists, and even some proponents of competing materials about their views of concrete and their vision of its future.

Información

  • Creador
    Seth Tandett
  • Años de actividad
    2022 - 2026
  • Episodios
    159
  • Clasificación
    Explícito
  • Copyright
    © Seth Tandett
  • Mostrar sitio web
    Concrete Logic

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