LIGHT-CALCINED PARTITION MATERIAL AND THE METHOD FOR PREPARING IT

A light-calcined partition material (1) and the method for preparing it. The mixture is comprised of light-sand, sodium silicate and the filling is formed rectangle slice-like light calcined partition material (1) by mixing, stirring, pressing, drying, calcining and cooling. The front side of the material is smooth surface, but there are big and small grooves (11, 12) in the direction of longitudinal and crosswise on the backside of that material (1).