▎ 摘　　要

NOVELTY - Graphene soil cement comprises 100 pts. wt. sodium hydroxide, 10 pts. wt. sodium silicate, 55 pts. wt. water glass, 30 pts. wt. water, 0.6-1 pts. wt. filling agent, 1-4 pts. wt. dispersing agent, where filling agent comprises polyvinyl alcohol fiber and dispersing agent comprises graphene. USE - Graphene soil cement for three dimensional printing construction material (claimed). ADVANTAGE - The graphene soil cement improve strength and working performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is inculded for a method for preparing graphene soil cement, which involves: (A) firing meta-kaolin and kaolin, calcining for 1-4 hours at 600-800 degrees C, preserving temperature for 1-4 hours, taking out, and cooling to room temperature; (B) adding sodium hydroxide and water glass, sealing and preserving, and cooling to room temperature to obtain alkaline activator; and (C) adding alkaline excitant and water, adding meta-kaolin and mixing filling agent and dispersant, using cement stirrer stirring at low speed for 1-2 minutes, and stirring uniformly to obtain final product.