国家/地区 中国（3）
IPC部 C（3）
IPC大类 C04（3）
IPC小类 C04B（3）
IPC C04B028/04（3）
发明人
公开年 2022（2）
申请年 2022（3）
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

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

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