The invention discloses a preparation method of
phosphorus building
gypsum-based water-resisting and self-leveling
mortar. The anti-
cracking mortar is prepared from the following components in percentage by
mass: 50 to 90 percent of
phosphorus building
gypsum, 10 to 50 percent of baked sand, 0 to 20 percent of
cement, 0 to 5 percent of
fly ash, 0 to 15 percent of an active activator, 0 to 3 percent of a
water repellent, 0.1 to 1 percent of a high-performance
plasticizer, 0 to 0.2 percent of an anti-
settling agent, 0 to 0.2 percent of a flocculating agent, 0.01 to 0.4 percent of a
calcium sulfate retarder, 0 to 3 percent of a high-molecular
polymer and 0.05 to 0.3 percent of a high-performance defoaming agent. According to the preparation method disclosed by the invention,
phosphogypsum which is an
industrial waste is used as a main
raw material, so that the prepared self-leveling
mortar is high in
quality performance and high in
water resistance, can be applied to a leveling project for indoor and outdoor grounds, is particularly applicable to a floor heating project and a wood floor
base course leveling project, is high in coagulation and hardening speed, high in volume stability,high in temperature change resistance, and low in cost, and does not crack, and product properties meet relevant standard requirements; a production process is simple and low in
energy consumption; compared with other self-leveling mortar products, the
phosphorus building
gypsum-based water-resisting and self-leveling mortar is higher in market competitiveness and high in practicability.