what does "pressed brick" means? in civil engineering?

Answer 1

Dry-press brick were usually made from ground shale, tempered with only a small amount of water. Bricks were formed under pressure in steam-heated steel moulds; pressure applied by an overhead steel plunger provides cohesion to the brick in lieu of sufficient water for plasticity. Dry-press machines make four to six bricks with each cycle, and are capable of making 2,000 brick per hour. At the Don Valley Brick Works, the clay, which was conveyed to a mixer where water was added to 5 to 8 per cent moisture content. This mixture was then conveyed to presses.

Answer 2

I means you don't know how to use a search engine. I got over 32,000 hits on "pressed brick", but I'm not about to spend a lot of time running them down.


Doug