Luma-as Construction and Supply Inc

Luma-as Construction and Supply Inc This page is all about Construction Tips and Ideas. Supplier of Construction Products and Tools

31/08/2026

Wrong Lap Splice Length in Rebar: Common Practice or
"It's tied, it'll hold" — but is the overlap actually long enough? Lap splice length isn't random; it's calculated so tension transfers fully from one bar to the next through the concrete. Too short, and the load path can break right at the splice. Watch the full breakdown with exact measurements — would you approve this splice?

31/08/2026

That "bump" you feel driving over a bridge isn't bad construction... it's the bridge BREATHING

Bridges are never built as one solid piece. Hidden rubber pads and metal joints let them expand and shrink with the weather — without cracking.

Have you ever noticed this bump and wondered what it was? 👇

31/08/2026

Why is concrete cover so important around reinforcement steel? 🏗️

Concrete cover helps protect rebar from environmental exposure and provides the surrounding concrete needed for reinforced-concrete construction. If the cover is inadequate, moisture and other agents can reach the steel more easily, increasing the risk of corrosion, cracking and spalling.

Always follow the project drawings and specified cover requirements.

31/08/2026

They lift a 100-ton concrete beam... over open ocean... and drop it in an exact spot on a bridge pier

This is how engineers connect bridge piers using precast girders and launching cranes.

Would you trust standing under this during installation?

31/08/2026

MORE WATER DOESN’T MEAN STRONGER CONCRETE!

Adding extra water may make concrete easier to work with—but it can increase porosity and reduce strength and durability after the concrete hardens.

One small mistake during concrete placement can have BIG consequences.

Would you add extra water to concrete? 👇

31/08/2026

Have you ever wondered how a skyscraper can have huge open floors with zero columns in sight? 🏙️ The trick is hidden above your head — a massive transfer beam redirecting the entire building's weight. Did you know this existed? Tell us below 👇

30/08/2026

Formwork off in a day or two just to keep the schedule moving — sound familiar? But concrete keeps gaining strength for days after it's poured, and stripping too early can mean the structure isn't ready to carry itself yet. Watch the breakdown and tell us — necessary shortcut, or rushed job?

30/08/2026

How Engineers Design the Biggest Dams in the World?

A dam doesn't just "block" water — it's fighting a force that gets stronger the deeper you go. 😳

Engineers calculate exact water pressure at every depth just to make sure the wall never fails.

Would you trust math this precise to hold back an entire reservoir? 👇

30/08/2026

Sheet Pile vs. Concrete Flood Walls: Which One Actually Works Better?

Two flood walls, two totally different builds. 🌊

One is driven into the ground with a machine in hours. The other takes weeks of formwork and concrete pours.

Which one do you think holds back more water? 👇

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General Trias
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