Using phosphogypsum-based α-type high-strength gypsum as raw material,the physical foaming agent for phosphogypsum is used to improve the mechanical properties of phosphogypsum based α-type high-strength gypsum foam material with different types,specifications and amounts of fibers.The research shows that the bending strength of foam can be significantly improved when the dosage of 12 mm polyester fiber is 0.4％,the polyester fiber is fully dispersed in water,and then the a high-strength gypsum premixed with 0.01％protein coagulant is added to control the amount of foam added,and the α-type high-strength gypsum with a dry density of(340±10)kg/m3 is obtained.
phosphogypsum based α-type high-strength gypsumfoaming materialfibermechanical properties
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