公开(公告)号：US20240132403A1

公开(公告)日：2024-04-25

申请号：US18276065

申请日：2021-08-19

Applicant: SOUTHEAST UNIVERSITY

Inventor： Chunxiang QIAN ,  Xinwei REN ,  Qinwen CHEN

IPC: C04B16/00 ,  C04B7/02 ,  C04B7/32 ,  C04B40/00

CPC classification number: C04B16/00 ,  C04B7/02 ,  C04B7/323 ,  C04B40/0039 ,  C04B2111/72

Abstract: A color-adjustable repairing agent and a preparation method therefor, and concrete containing the repairing agent are disclosed in the present invention; the repairing agent is a mixture of microbial powder, dopamine and a calcium source immobilized by cement; and according to total mass of the mixture, a mass percentage of the microbial powder is 44%-54%, a mass percentage of the dopamine is 1%-5%, and a mass percentage of the calcium source is 44%-54%; according to the present invention, dopamine is mixed into a microbial self-repairing agent, a cement-immobilized microbial self-repairing agent is used for preparing repairing agent particles, a crack area of microbial self-repairing concrete is repaired, and repairing performance of the concrete and a color of a repairing product of the crack area are tested.

公开(公告)号：US20240009640A1

公开(公告)日：2024-01-11

申请号：US18230732

申请日：2023-08-07

Applicant: SOUTHEAST UNIVERSITY

Inventor： Chunxiang QIAN ,  Tianwen ZHENG

IPC: B01J2/12 ,  B02C23/10

CPC classification number: B01J2/12 ,  B02C23/10

Abstract: A microbial repairing agent production line includes a feeder, where the feeder is connected to a storage bin, the bottom of the storage bin is connected to a metering tank, the metering tank is in communication with a granulator through a spiral or pneumatic conveying apparatus, a screening device is arranged below the granulator, and a discharge port of the screening device is connected to one end of a conveyor belt; a production process for includes: conveying a raw material to a storage bin through a feeder; then adding the raw materials to a metering tank in sequence through a spiral or pneumatic conveying apparatus, and metering and weighing the raw materials; conveying metered raw materials into a granulator; discharging the microbial repairing agent; and screening the microbial repairing agent, and collecting and maintaining the microbial repairing agent.