How Much Pressure Can an 800-Pound Concrete Cylinder Withstand Before Crumbling?

At the University of Illinois at Urbana-Champaign’s Engineering Open House Day, Bad Astronomy witnessed engineers attempt to crush an 800-pound concrete cylinder using a mechanical press that can apply up to three million pounds of pressure. How much pressure can the concrete cylinder withstand before crumbling?

Kimber Streams
Kimber Streams