FIELD: manufacture of constructional materials. SUBSTANCE: method for manufacture of Portland-pozzolana cement prescribes admixing waste product resulting from manufacture of oil-cracking alumosilicate catalyst constituting 8 to 12 % of pozzolana cement mass with Portland cement and water. Portland-pozzolana cement compressive strength: 55 MPa. Resistance to cold: 350 cycles. EFFECT: excellent properties. 1 tbl
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