公开(公告)号：US20230295045A1

公开(公告)日：2023-09-21

申请号：US18159107

申请日：2023-01-25

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Chung Kong CHAU ,  Nok Hang WONG ,  Shuai ZOU ,  Yong FAN ,  Man Lung SHAM

IPC: C04B28/04 ,  C04B28/00

CPC classification number: C04B28/04 ,  C04B28/005 ,  C04B28/006 ,  C04B2111/00767

Abstract: A reclamation fill stabilizing composition for accelerated soil stabilization of high water-content waste soils/marine mud. The fill stabilizing composition includes a hydrolysis polymerization agent for chemically reacting with water in waste soil/marine mud. A gelling geopolymerization agent chemically and physically locks the water in its formed 3-D aluminosilicate microstructure. A sol-gel immobilization agent chemically and physically traps the water by reacting and bonding with the water. A nano-modification agent provides additional crystal nuclei to increase the effects of hydrolysis polymerization, gelling geopolymerization, and sol-gel immobilization. The reclamation fill stabilizing composition is mixed with high water-content waste soil such as marine mud. The marine mud is rapidly transformed into a compactable fill material within a stabilization curing period as short as 3 hours. Following stabilization, the treated marine mud is compacted (e.g., with a vibratory roller) into a layer of about 240 \~300mm with adequate stiffness (CBR value of at least 15%).

公开(公告)号：US20240308910A1

公开(公告)日：2024-09-19

申请号：US18604441

申请日：2024-03-13

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Shuai ZOU ,  Chung Kong CHAU ,  Yong FAN ,  Man Lung SHAM

IPC: C04B18/08 ,  C04B18/02 ,  C04B20/10 ,  C04B20/12 ,  C04B111/40

CPC classification number: C04B18/082 ,  C04B18/027 ,  C04B20/1007 ,  C04B20/12 ,  C04B2111/40 ,  C04B2201/20

Abstract: High-strength, lightweight core-shell aggregates are formed from waste materials. The aggregates include porous core materials which may be one or more of perlite, vermiculite, cenospheres, expanded polystyrene, or biochar. Formed on the core materials is at least one layer of shell material which includes one or more of GGBS, fly ash, recycled concrete powder, recycled glass powder, or biochar powder. The high-strength, lightweight core- shell aggregates have a loose bulk density less than approximately 980 kg/m3, a crushing strength higher than approximately 4 MPa, a water absorption of less than 20%, and a carbon emission of approximately 181 kgCO2eq/t or less. Lightweight concrete is formed by incorporating the high-strength, lightweight core-shell aggregates with cement to create concrete with a density of 1900 kg/m3 or less.