▎ 摘　　要

NOVELTY - Improved impermeability concrete comprises 32-36 pts. wt. ordinary Portland cement, 24-28 pts. wt. quartz sand, 12-16 pts. wt. pretreated carbon fiber, 16-22 pts. wt. lignin fiber, 8-14 pts. wt. modified rice hull ash, 6-10 pts. wt. graphene powder, 5-9 pts. wt. potassium sodium feldspar powder, 5-9 pts. wt. aerated aluminum powder, 3-5 pts. wt. gypsum powder and 2-6 pts. wt. clay grade mica. USE - Used as improved impermeability concrete. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the improved impermeability concrete comprising (i) taking the above mentioned raw materials; (ii) stirring the ordinary Portland cement, quartz sand, pretreated carbon fiber, lignin fiber and modified rice hull ash at 165-175 rotations/minute for 45-55 minutes to obtain mixture A; (iii) adding potassium sodium feldspar powder, aerated aluminum powder, gypsum powder and clay grade mica into a ball mill for ball milling and passing via 30-40 meshes to obtain mixture B; and (iv) adding mixture A, mixture B and graphene powder into a high-speed mixer, stirring speed 550-650 rotations/minute for 65-75 minutes.