▎ 摘　　要

NOVELTY - Prefabricated building block, which is cuboid with honeycomb skeleton structure. The pores of the honeycomb skeleton structure are filled with 27-30 pts. wt. graphite polystyrene foam particles. The honeycomb skeleton structure is composed of 190-200 pts. wt. silicate cement, and 5.5-8 pts. wt. fibers and 2-5 pts. wt. graphene mixed in silicate cement. The prefabricated building block has rigidity provided by the honeycomb skeleton structure, and can be applied under the condition of 0.5-1 MPa pressure, through the fragmentation of the honeycomb skeleton structure, at least part of the prefabricated building block has flexibility and elasticity provided by the graphite polystyrene foamed particles. USE - Prefabricated building block for use in an isolation body for underground sealing. ADVANTAGE - The prefabricated building block has light weight, high strength, strong anti-deformation characteristics and so on, with non-combustible, heat insulation, anti-static performance, capable of underground satisfy sealing wall of the technical requirement. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an isolation body for underground sealing.