▎ 摘　　要

NOVELTY - Green phosphorus pollution-proof mortar comprises 10-20 pts. wt. cement, 5-10 pts. wt. fly ash, 30-50 pts. wt. phosphogypsum, 10-20 pts. wt. vitrified microbeads, 20-50 pts. wt. modified river sand, 0.05-0.1 pts. wt. thickening agent, 0.05-0.1 pts. wt. water reducing agent, 0.05-0.1 pts. wt. reinforcing agent, and 30-60 pts. wt. water; The preparation modified river sand comprises washing 20-50 pts. wt. river sand with water to remove impurities on the surface, drying, soaking the dried river sand in 30-60 pts. wt. hydrochloric acid (0.5-2 mol/l) for 1-3 hours, carrying acid treatment, washing with water and drying to obtain pretreated river sand; adding the pretreated river sand in 150-300 pts. wt. water, adding 15-30 pts. wt. ferric sulfate, stirring at 55-60degrees Celsius for 0.5-2 hours, filtering river sand and calcining at 650-800degrees Celsius for 2-4 hours, water washing and drying, obtaining modified river sand. USE - Used as green phosphorus pollution-proof mortar. ADVANTAGE - The green phosphorus pollution-proof mortar: comprehensively utilizes two industrial wastes, fly ash and phosphogypsum, which are respectively used as fine aggregates and main components filled in mortar, river sand is modified, modified river sand can promote the hydration process of the mortar and optimizes the gradation of each component of the aggregate, on the premise of not reducing the original mechanical properties, the phosphate in the mortar can be fixed by single-layer chemical adsorption, so as to reduce the phosphate concentration in the bleeding process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the green phosphorus pollution-proof mortar.