Wet concrete on skin can cause everything from mild redness to third-degree, permanently disfiguring chemical burns. You and your helpers should take these steps: Wear eye protection. Sandy ...

For more than a century, concrete has been the foundation of our modern civilization’s infrastructure with a stoic permanence ...

concrete is back on the menu. It’s going to be curbs, no doubt the mountable kind that PBOT uses elsewhere, so maybe more of an appetizer than the main course folks generally want. He says the bureau ...

A Coast Guard helicopter from CG Air Station Astoria, Oregon lowers a rescue swimmer in 2024. An Astoria crew rescued four men from inside a collapsed industrial water tank in Washington last week.

Modern concrete, based on a material known as Portland cement, ... making the concrete harden much faster. The technique also generated some hot spots of almost 400 degrees, ...

THEY HARDEN WITH USE The Concrete Built About a Skeleton of Steel or Iron Solves Problem of Collision Dangers. Share full article. Nov. 22, 1908.

Steel reinforcement corrosion is a perennial problem for concrete as a construction material. Engineers are looking at novel ...

If successful, the concrete test could pave the way for NASA engineers to assemble a lunar base without needing to ship tons of cement to the Moon's surface, which could cost millions of dollars ...

On Tuesday, PBOT announced that a crew of contractors will begin a project this week to install concrete curb separators to protect the bike lane. “They are expected to install about 210 feet of ...

Home hardening means using fire-resistant building materials and landscaping to protect buildings from heat, flames and a blast of embers during a firestorm. Here’s a brief overview of what that ...

Mixing concrete, which requires cement, is an energy-intensive process that can release plenty of carbon dioxide. The gas can make the material brittle and full of air bubbles when mixed incorrectly.