FIELD: manufacturing of building articles having predetermined technical and medicinal and biological properties. SUBSTANCE: polycomponent mixture of sodium and potassium chlorides is preliminary purified against clay-comprising impurities and is wetted till moisture content is 0.3-10 %. Then it is compressed. The process takes place at pressure not less 10 MPa, it is followed by crystallization strengthening by drying at 50-150 C. EFFECT: improved efficiency of the method. 7 cl
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