▎ 摘　　要

NOVELTY - Anti-radiation pollution mortar comprises 50-70 pts. wt. cement, 20-30 pts. wt. fly ash, 20-30 pts. wt. river sand, 8-10 pts. wt. re-dispersible emulsion powder, 65-75 pts. wt. 20-50 meshes barite sand, 10-20 pts. wt. 100-200 meshes barite powder, 8-15 pts. 250-400 meshes barite powder, 6-10 pts. wt. modified composite fiber, 8-12 pts. wt. nano lead powder, 5-8 pts. wt. starch ether and 6-10 pts. wt. cellulose thickening agent. The modified composite fiber comprises modified polypropylene fiber, graphene oxide modified carbon fiber and modified glass fiber. The modified polypropylene fiber and modified glass fiber are modified by silane coupling agent. The mass ratio of modified polypropylene fiber, graphene oxide modified carbon fiber and modified glass fiber is 4-5:2-3:2-3:1. The length of modified polypropylene fiber is 5-10 mm. The length of graphene oxide modified carbon fiber is 2-4 mm. The length of modified glass fiber is 1-2 mm. USE - The wall mortar is useful for preventing radiation pollution. ADVANTAGE - The wall mortar has good mechanical strength and toughness, no delamination, no separation, no flow hanging and good construction performance.