RAW FORMING MIXTURE Russian patent published in 1998 - IPC

FIELD: building industry. SUBSTANCE: invention relates to compositions of raw forming mixtures based on magnesia binding agent. Raw forming mixture has the following components, wt.-%: caustic magnesite, 25.2-27.0; ground basic blast furnace granulated slag, 30.1-31.75; nonground iron-containing waste of blast furnace production (blast furnace dust or scrubbing slime), 4.2-9.34; bischofite solution of density 1.3 g/cm³ (as calculated for anhydrous, MgCl₂) 32.77-37.6; mullite-siliceous cotton, 0.94-1.1. Invention can be used in machine engineering and building industry. EFFECT: increased bending strength of article, adhesion of mixture with steel surface, retained compression strength and nonshrinking effect at hardening. 1 dwg , 2 tbl