INFLUENCE OF THE WAY OF THE MOULDING MASSES DRESSING ON P ROPERTIES OF MAGNESI A COMPOSITIONS

The author establishes the influence of the way of dressing of the moulding masses on the maturing and the durability of the magnesia compositions of a granular structure. This article shows the preferability of a primary contact between technogenic filler of mixed astringent and the magnesium chloride what is caused by activation of hydrolysis of minerals of ore-dressing tailings. The expediency of the preparation of forming mix was proved, which provide the separate processing of technogenic filler with salt solution of sealing compound. It will provide the washing of dismembered material and will exempt a surface of grains from dust-like particles.