David Jasinski

I'm giving away my best follows. (Alphabetically, so nobody gets jealous 😁 ) The best construction education I ever got was free. I just followed the right people. The algorithm won't put these accounts in your feed. So I will. Aaron Witt — the biggest machine enthusiast in the dirt world, and the founder of BuildWitt, the best training platform I've seen for our industry. His story alone is worth the follow. Angelina Tadros — walking a road I know well: from engineer to marketing and sales consultant in construction. Watch this journey. Bill Krell & Brandon McGill — two recruiters sweeping the system clean. Daily posts with real hiring stories from our industry, sharp words for employers who undervalue their people, and a confidence boost for engineers who underrate themselves. Dimitrios Konstantakos — first my friend, then a brilliant geotechnical engineer and creator of Deep Excavation LLC, in my book the finest deep excavation design software in the world. Also my ally in the war on AI slop written by "civil engineers" who skipped the critical thinking part. Isaac Oakeson, PE — a great soul and an even better conversationalist (joining his podcast was a real pleasure). His Civil Engineering Academy has helped more engineers earn their PE license than anyone can count. Noemi Zabari & Itamar Zabari — an astrophysicist and her businessman husband taking on one of science's oldest puzzles: early earthquake warning. Their startup AstroTeq.ai deserves far more noise. This work could one day save thousands of lives. Roberto M. — when the history of space construction is written, his name will be in it. A practitioner who tests every theoretical paper on off-Earth building against decades of real projects. Theory plus practice makes a specialist. Never one alone. Zulqernain (ZULQ) Malik Malik — built an AI company SMARTBUILD Construction Solutions for construction that actually solves the problems site teams hit every single day. Rare in a sector full of hype. Follow all of them, and your feed becomes a classroom. Who did I miss? Drop the creators you'd recommend in the comments. 👇

This is huge

Fresh concrete is not a solid. Welcome to #MondaySafetyCheck #12 🧱 Concrete is a liquid that weighs 2.5 times more than water. That single fact explains what you see in this video. A vertical wall pour, and the formwork starts to give way at the bottom. First a leak, then a bulge, then the whole system breaks open and the concrete pours out, tearing the shuttering apart. Why at the bottom? Physics. Freshly placed concrete behaves like a dense fluid with a unit weight of around 24 kN/m³. The lateral pressure grows with depth, so the highest load always sits at the base of the wall. On a tall pour placed quickly, that pressure can exceed 50 kPa: roughly 5 tonnes pushing on every square metre of formwork. And here’s the part many crews underestimate: the pressure depends heavily on how fast you pour. Concrete stiffens over time, and stiffened concrete stops pushing. Pour faster than it sets, and the full liquid head builds up. Cold weather, retarders, and over-vibration near the base all slow the stiffening and drive the pressure even higher. What keeps a pour like this safe: → Formwork designed for calculated pressure, not for “it held last time” → A maximum pour rate defined before the truck arrives, and respected → Ties, walers, and bracing inspected before the pour, especially at the base → Someone walking the forms during placement, watching for deflection, leaks, and creaking, with authority to stop the pour A blowout gives almost no warning. Slurry leaking at a joint is often the only signal before sudden failure. Formwork is temporary. The consequences of getting it wrong are not. Have you ever had to stop a pour because the forms didn’t look right? What did you see?

Connstruction innovation: 200,000 views in 3 days. And thloudest critics never opened the FAQ. If you watch the video, yes, that’s me mid-run with my dog, sweat stains and all. No script, no studio. Just a reflection that hit me somewhere along the sand. Three days ago I posted about SYSTEM 3E, a mortar-free wall technology built from perlite elements. 200,000 views. Over 100 comments, most of them positive or genuinely curious. But a small group of “experts” arrived with verdicts, not questions: → “It can’t work in seismic zones.” Their FAQ covers seismic design under Eurocode 8. → “It won’t survive hurricanes.” Addressed on their site. → “You can’t run pipes or cables in it.” Also answered, publicly. Five minutes of reading. That’s all it would have taken. Piotr Budnik was even in the comments answering every question in real time. I’ve seen this movie before. I’ve worked with vinyl sheet piles since 2019, and for years I heard “they can’t handle tough soils” or “they can’t be long.” The projects got built anyway. Skepticism is healthy in engineering. But skepticism means asking questions and checking data. Judging a technology from a 40-second video is not skepticism. It’s a closed mind wearing a hard hat. The best engineers say “interesting, let me verify” before they say “impossible.” Have you ever dismissed a technology, then watched it prove you wrong?

I almost missed my flight because of a rebar cage. Landed at Newark late last night, checked into the airport hotel, opened the blinds this morning and froze. Right below my window: a full drilled shaft foundation site for the new AirTrain Newark. Call it professional deformation.🤪 Normal people see a construction site.🤓 I see a steel sheet pile cofferdam holding back the excavation, a massive spiral-welded rebar cage waiting for concrete, and a Grove crane parked like it owns the place. Ten minutes gone before I even touched my coffee. 🤣 What we’re looking at here: → The $3.5B AirTrain Newark Replacement Program: a new 2.5-mile elevated people mover with 3 stations, replacing the original 1996 system → Tutor Perini–O&G JV building the guideway and stations under a $1.18B contract → In the photo: a pier foundation with vertical starter bars extending up for the column, protective wrap on the couplers, and sheet piles doing the quiet, unglamorous work of keeping soil where it belongs The banner on the fence says “First we built a new Terminal A. Now we’re building a new Airtrain” Fair. But for me the real show is in the ground. Engineers never really check out of work. We just change the window we’re looking through. What’s the last time site-spotting almost made you late for something?