▎ 摘　　要

NOVELTY - Coastal deformed structure 3D printing concrete comprises 1 pts. wt. compound cement, 1-2 pts. wt. reclaimed sand, 0.05-0.2 pts. wt. fly ash, 0.005-0.05 pts. wt. polyvinyl alcohol, 0.0002-0.002 pts. wt. graphene oxide, 0.01-0.05 pts. wt. steel fiber, 0.005-0.02 pts. wt. organic fiber, 0.005-0.01 pts. wt. water reducing agent, 0.005-0.01 pts. wt. adjusting agent, 0-0.05 pts. wt. mineral admixture and 0.3-0.5 pts. wt. water. The PVA further comprises oxidizer and catalyst. USE - The concrete is useful for preparing coastal deformed structure, preferably manhole covers, rainwater grate, underground pipe gallery, egg-shaped water tank, underground railway segment, honeycomb beam, laminated beam/slab, etc. (claimed). ADVANTAGE - The concrete: has good cohesive water retention and adhesion between adjacent thin layers; avoids the formation of corrosive cells in the thin concrete layer; and has good marine durability and good application prospects when applied to coastal deformed structural engineering. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for processing coastal deformed structure 3D printing concrete.