公开(公告)号：US12258296B1

公开(公告)日：2025-03-25

申请号：US18568841

申请日：2023-02-10

Applicant: Southeast University

Inventor： Songyu Liu ,  Xiang Zhang ,  Zhenyang Yuan

IPC: C04B18/12 ,  C04B14/04 ,  C04B14/36 ,  C04B24/04 ,  C04B24/12 ,  C04B28/10 ,  C04B38/10 ,  C04B103/48 ,  C04B111/00 ,  C04B111/40

Abstract: The disclosure belongs to the technical field of materials for civil construction engineering, and specifically relates to a green and low carbon emission foamed lightweight soil prepared by using serpentine, magnesium oxide and CO2 as raw materials. In the serpentine carbon sequestration foamed lightweight soil, the ingredients of raw material include: magnesium oxide, serpentine, a filler, CO2 bubbles and water.

公开(公告)号：US10920390B2

公开(公告)日：2021-02-16

申请号：US16310820

申请日：2017-12-26

Applicant: SOUTHEAST UNIVERSITY

Inventor： Songyu Liu ,  Guanghua Cai ,  Liang Wang ,  Chuan Qin

IPC: E02D3/12

Abstract: A method for an ex-situ carbonization and solidification of silt soil using an active magnesium oxide, pertaining to the field of civil and hydraulic engineering. The method includes the steps of silt pretreatment, homomixing of solidifying agents, silt granulation, carbonization by carbon dioxide, exhaust gas/waste liquid collection, and resource utilization. In the method, the supply amount of the solidifying agent is adjusted through the actual measurement of the moisture content, and the granule size and carbon dioxide pressure are adjusted according to the soil properties. Therefore, a full mixing of the silt with the solidifying agents and a rapid carbonization of the magnesium oxide solidified silt granules can be achieved. Moreover, the dust and carbon dioxide can be absorbed during the operation, thereby avoiding secondary pollution. The silt carbonized granules can be used as filling materials for roadbeds, airport runways, engineering backfills, etc.