Pyrrhotite causes cracks in concrete. But research on how widespread the issue might be has only scratched the surface.

Aviation experts are raising serious questions about a curious concrete wall near the end of an airport runway in South Korea — after a catastrophic crash killed 179 people on board a Jeju Air ...

VERSATILE: This core bit is versatile in application with materials including concrete, brick, and block. DIMENSIONS: The Bosch HC8526 SDS-max core cutter measures 2-5 8-inches in diameter.

Shahidi said. “What we saw here was a head-on collision with a concrete wall that appears very thick,” he added. The plane involved in Sunday’s crash, a Boeing 737-800, had taken off from ...

“What we saw here was a head-on collision with a concrete wall that appears very thick,” he added. The plane involved in the Dec 29 crash, a Boeing 737-800, had taken off from Bangkok and was ...

Aviation experts have said airport authorities in South Korea should face serious questions over the concrete wall that a plane collided with killing 179 people. Leading air safety expert David ...

This project aims to develop and validate bolted splice details for C-PSW/CF, a structural system designed for non-seismic regions like New York City and Boston. The focus is on areas where bolted ...

The Jeju Air plane burst into flames after smashing into a concrete wall (Chris Jung/NurPhoto via Getty Images) Aviation experts have also been questioning why the 'unusual' concrete wall was ...

A rare concrete wall at the end of the runway of Muan International Airport is suspected to have exacerbated damage to the Jeju Air flight that crash-landed Sunday and claimed 179 lives.