A dense composite materials (bulk density – 2.3-2.9 g/cm3, water absorption – 0.15-0.6 %), corresponding to Latvian standard LVS EN 176 group BI, have been manufactured from local inorganic industrial waste – steel cooling refuse, etching refuse and alumina containing waste, alkali glass and clay from Liepa deposit using powdertechnology and thermal treatment. Three methods have been applied in order to investigate the chemical durability of obtained materials. Essential changes of sample weight were detected after immersion in the HNO3 solution (pH ≈ 2). The test for water-soluble salts (LVS EN 12370) was applied in order to test composite materials. Weight loss was observed after 10th cycle. Obtained results show that composite materials correspond to requirements of building ceramics.