The invention discloses waterproof
phosphogypsum plastering
mortar dry powder. The
dry powder comprises the following components in parts by weight: 20-29 parts of
phosphogypsum base gelatinization material, 68-77 parts of sand, 0.5-3.0 parts of waterproof agent, 0.2-1.0 part of
retarder and 1.5-5.0 parts of water-retaining agent. The
phosphogypsum is used for preparing waterproof plastering
mortar dry powder, a new technological method is provided for solving the problems of occupation space, environmental risks, potential safety hazards and the like of the
industrial waste phosphogypsum, moreover, local resources are used, the utilization of a local material-superfine sand is solved, on the one hand, environmental load is reduced and the positive cycle of the
gypsum industry is promoted, and on the other hand, the cost of
gypsum plastering
mortar is also lowered. In addition, compared with the waterproofness of the conventional
gypsum-based material, the waterproofness of the gypsum plastering mortar which can be produced through the phosphogypsum plastering mortar dry
powder and has the
softening coefficient of 0.86 is obvious.