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 2021（2）
申请年 2021（3）
专利权人

Repairing material for surface micro-crack of prefabricated component, comprises cement P. O52.5, fine sand, silicon ash, cellulose, starch ether,dispersed latex powder, calcium formate, diethylenetriamine and heavy calcium.

YING B, LV Q, XIANG S, DONG W, CAO L, ZHOU S

Preparing modified graphene expandable polystyrene particle comprises e.g. mixing sodium borohydride and sheet graphene with alkyl benzene sulfonic acid, using suspension polymerization method to polymerize, and performing polymerization.

XI F, LI C, XIAO D

Preparing high-strength concrete, comprises weighing cement, sand, stone, silica fume, fly ash, water, water reducing agent, energy storage and heat storage additive, steel fiber, polypropylene fiber, and mixing cement.

WANG R, CHEN S