RAW MIXTURE FOR MANUFACTURE OF WOOD BUILDING MATERIAL Russian patent published in 1995 - IPC

FIELD: manufacture of building materials. SUBSTANCE: raw mixture for manufacture of wood building material contains, mas.% : absolute dry hogged wood 36-41; magnesium chloride, or calcium chloride, or iron chloride (III), or sodium sulfate 8-10; the balance, water. Raw mixture is prepared by mixing hogged wood with aqueous solution of chloride or sulfate, and by adding to prepared mixture of nepheline slime and gypsum. Products from the said raw mixture features compression strength in 30 min of 3.7-6.1 MPa; in 60 min of 5.7-7.8 MPa; in 24 h 7.9-13.5 MPa; bending strength of 10.1-12.5 MPa. EFFECT: higher efficiency. 1 tbl