FIELD: technological processes; construction.
SUBSTANCE: invention solves problem of how to involve mass industrial waste phosphogypsum into production cycle as analog of construction material of natural origin. Method for preparation of granulated phosphogypsum includes mixing of initial phosphogypsum with binder and further rolling of mixture, at that binder used is return powder of phosphogypsum produced in mode of granulated material thermal treatment at the temperature of 170-200°C and its further crushing, at that portion of material recycle makes mostly up to 0.5 of total flow.
EFFECT: reduction of expenses in process of granulated phosphogypsum production.
4 ex
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