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 2023（4）
申请年 2022（2）  2023（2） 
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

Silane modified oxidation graphene-fly ash-based grouting material for plugging tunnel-rich water-rich crushing belt, comprises cement, desulfurization gypsum, fly ash, silane modified multi-layer oxidation graphene alkali excitation material.

CHEN X, HU X, LI X, CHEN H, WANG M, GUAN X, LING X

Advanced deep hole liquid explosion fracturing structure useful for downlink comprehensive digging hard rock tunnel, has bag injecting pipe whose end is set on outer side of blast hole, and bag hole sealing device filled with special blasting hole sealing grouting material.

YANG S, TONG X, GAO A, YANG J, XU G

Graphene oxide clay cement grouting material useful in ground pre-grouting technology comprises cement, clay, structural reinforcing agent, sodium silicate and water.

YU Z, XIE Z, TIAN L, DING Z, WANG H, SUN J, LIU S