▎ 摘　　要

NOVELTY - Cement mortar comprises 1-5 pts. wt. graphene oxide, 1-10 pts. wt. basalt fiber, 30-50 pts. wt. water, 300 pts. wt. sand, 100 pts. wt. cement and 1-5 pts. wt. admixture. USE - Used as cement mortar. ADVANTAGE - The cement mortar has effectively improved shielding performance by electromagnetic radiation by coating the basalt fiber with graphene and also effectively improved mechanical properties and improved compressive and flexural strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the cement mortar comprising (a) carrying out ultrasonic dispersion of graphene oxide in water to obtain a graphene oxide dispersion; (b) slowly adding basalt fiber to the graphene oxide dispersion with constant stirring and continuously mixing to obtain a mixed solution of graphene oxide and basalt fiber; (c) thermally reducing mixed solution of graphene oxide and basalt fiber at 85-95 degrees C for 4-6 hours to obtain graphene basalt fiber; and (d) adding graphene basalt fiber to a stirring pot, adding cement and stirring, then adding sand and stirring.