1 Cent Crushing Machine

20111111soft underburned brick, such as are frequently used in filling in the interior of walls, will absorb from 30 to 35 per cent of their weight of water some good dryclay or pressed brick have an absorption of 15 to 20 per cent, while others run from 5 to 10 pei cent and some vitrified brick absorb only 1 to 2 per cent crushing strength.