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.;1 tbl
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机译：领域：建筑材料的制造;物质：本发明用于制造用于建筑物的室内和室外饰面，窗下边界，楼梯台阶的板和面板，以及干燥的建筑混合物和建筑材料的制造。建造现浇结构（地板和灰泥）。本发明的组合物包含wt％：苛性菱镁矿20-30，高活性无定形二氧化硅1.5-4.5，氯化镁溶液（密度1.2-1.25g / cm 3 ）15-25，另外：细氢硅酸镁1-3.5和填充剂-其余。效果：由于结构的定向形成，提高了耐水性，抗冻性和含氧化镁粘结剂的材料的强度。
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