Abstract
A manufacture of pressed refractory products with a maximum apparent density largely depends on a choice of optimal technological parameters for their forming, first of all, mass moisture and specific pressing pressure. The study objective was to establish of optimal values of these parameters in order to further improve the technology of aluminazirconium silicate refractories.
 Researches of mass moisture and specific pressing pressure influence on the apparent density of green samples and main properties of aluminazirconium silicate refractories samples fired at temperature 1580 C for 8 hours were carried out.
 Optimal values of aluminazirconium silicate mass moisture (3.5 %) and specific pressing pressure (100 N/mm2), which provide receipt refractories with high apparent density of formed greens (2.96 g/cm3) and dried greens (2.89 g/cm3) and properties after firing: apparent density 3.1 g/cm3, open porosity 21 %, cold crushing strength 75 N/mm2, thermal shock resistance by 950 C — water — more than 20 thermal cycles were established.
 Obtained results were used at making of aluminazirconium silicate products for glass melting furnace of industrial lining for fiberglass production from E glass.
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