国家/地区 中国（4）
IPC部 C（5） E（5）
IPC大类 C04（5）
IPC小类 C04B（5）
IPC C04B028/04（3） C04B111/20（2） C04B111/70（2）
E21D011/10（2）
发明人
公开年 2022（3） 2023（2）
申请年 2022（5）
专利权人

Grouting material useful for tunnel secondary lining, comprises cement, fly ash, quartz sand, silicon dioxide gas gel, graphene, dispersant, plastic expanding agent, expansion agent, antifoaming agent and low viscosity cellulose.

HAN D

Metal ceramic material useful for cutting pick of development machine, comprises diamond, silicon carbide, silicon nitride, amorphous silicon dioxide, cobalt oxide, boron carbide, tungsten graphene, nano iron powder and niobium carbide.

CHEN H, YANG B, HUA J

New-type grouting material with stratum for breaking fractured zone rich in water, comprises GO-FA synergistic effect modified cement grouting material, where GO is oxidation graphene FA is fly ash, proportion is oxide graphene, cement, fly ash, accelerating agent and preparing new grouting material.

LIAO C, LIN B

Cementitious composite comprises modified aggregate material, where modified aggregate material is configured from fine aggregate particles pretreated with graphene oxide, where graphene oxide is further arranged as crosslinked structures that arranges for refined interfacial zone.

SHI X, ZHONG J

Active powder concrete for tunnel construction and maintenance and strengthening, comprises common silicate cement, superfine mineral powder, silicon ash, fly ash, expansion agent, sand, carbon black.

GU Z