Construction Materials Based on Diatomite with Increased Strength Obtained by Different Methods

The possibilities of regulation of the physicomechanical properties of construction materials based on diatomite by changing the recipe and technological parameters of their synthesis are studied. It is proposed to use a modifying additive, change conventional glass formers by an alkaline solution of rosin or foaming agents based on resinous plant raw materials, and simplify standard technologies of obtaining diatomite materials. The materials having a wide range of characteristics are obtained; namely, materials with density from 0.6 to 1.07 g/cm3 and strength from 2 to 18 MPa are obtained by semidry pressing, and materials with density from 0.32 to 0.63 g/cm3 and compressive strength from 0.6 to 4.5 MPa are obtained by the foaming method and the method of combustible additives.