国家/地区 中国（4）
IPC部 C（4）
IPC大类 C04（4）
IPC小类 C04B（4）
IPC C04B111/70（4）
发明人
公开年 2021（4）
申请年 2020（4）
专利权人

High-strength hole sealing agent used for coal mine gas extraction borehole comprises graphene, basalt short fiber, silicate cement, gypsum, fly ash, expansion agent and additive.

BAI G, FENG J, WANG L, CHEN M

Preparing modified environmentally-friendly slurry comprises e.g. freeze-drying bentonite, crushing, sieving, adding sodium sulfate and carboxymethyl cellulose, adding graphene oxide, nano titanium dioxide and deionized water, and reacting.

WANG W, LIU S, XIE L, ZHANG B

Solid waste rock-soluble green filling material is useful in e.g. high-speed railways comprises red mud, blast furnace slag, high iron type metallurgical slag, solid waste gypsum, excitant, densification agent and modifier.

LI S, LI Z, ZHANG J, QI Y, WANG Y

Graphene oxide nanomodified cement-based grouting material comprises polycarboxylic acid water reducing agent, graphene oxide, carbon nanotube, shrinkage reducing agent, suspending agent, expanding agent, inorganic powder material and water.

YIN Q, WU J, JING H, JIANG Z, MENG B, GAO Y