HIGHLY POROUS GRANULATED CORUNDUM AGGREGATE PREPARED OUT OF ALUMINA-POLYSTYRENE-FOAM MIXTURE. PARTS 1 AND 2

Abstract

The     present    methods    of     the     porous    corundum aggregates preparation suffer from  a number of essential shortcomings: the   significant  complexity, low  efficiency, high  energy consumption, narrow fractional composition. The  most   promising method of  the  three types (hollow, porous and  keramzit-type aggregates) of the  porous corundum aggregate production is the  molding compound granulating on  base of the  foamed bead polystyrene (of the  screening). By means of the  alumina-polystyrene-foam mixture's granulation parameters varying one  can  control the  finished product' properties. Ill. 1.