国家/地区 中国（2） 美国（2）
IPC部 C（3） E（3）
IPC大类 C04（3） E01（2） E04（2）
IPC小类 C04B（3）
IPC C04B111/52（3）
发明人
公开年 2021（3）
申请年 2021（3）
专利权人

Thermal energy-transfer system such as grade beam, comprises thermally conductive concrete comprising carbon, metals and/or conductive polymers, aggregate and cement and having preset compressive strength, and pipes, tubes and capillaries.

GUARRERO B P

Multi-stage foam sound absorbing black material comprises polymer foam framework and continuous graphene resonant cavity attached on framework.

XU Z, LIU X, GAO C, PANG K

Preparation of three-dimensionally printed cement noise reduction barrier involves preparing reinforced composite cement slurry using e.g. quartz sand, feeding into feed system for layer-by-layer printing, and assembling.

YUAN F