How To Make Bricks Out Of Dirt

Dirt-cheap bricks--just add pressure Bricks are fairly easy to make, but in the developing world, traditional fired bricks are sometimes weak and crumble-prone, while cement ones are often unaffordable. The Vermeer BP714 is the first compressed-earth-block machine that makes strong air-dried bricks out of dirt. Its bricks don't just exceed U.S. cement-code strength requirements--they're 20 to 30 percent stronger, and cheaper than other machines' too. The process is simple. An operator mixes dirt...