Abstract
The recycling process was examined by using the industrial waste, such as clays, sands and slugs. Newly developed porous charcoal-like ceramics were expected to use for the wide application due to its unique features. The manufacturing process of the material with arbitrary shape was established and various properties were evaluated. Styrofoam mixed in the clay was lost during sintering then making the cavity in the ceramics. Consequently unburned carbon coated the ceramics surface by heating in non-oxidation atmosphere then making the material charcoal-like black. Volume fraction of styrofoam is the important factor influencing on water absorption, insulation and compressive strength. This material possessed the superior absorption of hazardous chemical substance, such as ammonia and formaldehyde.
