MAGNESIA BINDER-BASED COMPOSITION Russian patent published in 2005 - IPC

FIELD: manufacture of building materials.

SUBSTANCE: invention is meant for use in manufacture of slabs and panels destined for in-door and out-door facing of buildings, underwindow borders, staircase steps, as well as in manufacture of dry building mixes and construction of cast-in-place structures (floors and plasters). Composition of invention contains, wt %: caustic magnesite 20-30, high-activity amorphous silica 1.5-4.5, magnesium chloride solution (density 1.2-1.25 g/cm³) 15-25, additionally: fine magnesium hydrosilicate 1-3.5, and filler - the rest.

EFFECT: increased water resistance, frost resistance, and strength of magnesia binder-containing materials due to directed formation of structure.

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