Abstract
A new promising direction for recycling the large-scale saponitecontaining waste from the JSC Severalmaz mining processing company is presented, the storage of which can negatively affect the ecological situation of the region and increases the risk of environmental pollution. It has been found that saponitecontaining material (SCM) in terms of MgO content can be considered as a medium-magnesian technogenic raw material for the production of magnesium cement. It has been shown that the main conditions for obtaining effective solutions based on saponite binder are as follows: the sealer is an aqueous solution of magnesium chloride at concentration of 8% and the water-to-solid ratio of 0.4. Cube samples were obtained based on a binder made from thermally modified saponite powder, taking into account the above factors, with a compressive strength of 5.78 MPa at density of 1600 kg/m3. It has been confirmed that the implementation of the above technological methods makes it possible to obtain structural thermal insulating concrete that meets the requirements of the relevant GOST.
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