▎ 摘　　要

NOVELTY - A self-repairing cement-based composite material comprises 0-10 wt.% silicon dioxide-graphene oxide composite material, 20-50 wt.% self-repairing material, 5-15 wt.% expanding agent, 20-35 wt.% active mineral powder, 1-3 wt.% excitant and 10-20 wt.% deionized water. USE - The cement-based composite material is used for self-repairing. ADVANTAGE - The method enables preparation of self-repairing cement-based composite material having excellent crack resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of self-repairing of cement-based composite material comprising mixing raw materials of self-repairing material, granulating by spray granulation method on disk granulator, and curing at 18-22 degrees C.