公开(公告)号：US12116317B2

公开(公告)日：2024-10-15

申请号：US18408776

申请日：2024-01-10

Applicant: Shenzhen University

Inventor： Yingwu Zhou ,  Feng Xing ,  Wenhui Guo ,  Biao Hu ,  Menghuan Guo ,  Xiaoxu Huang ,  Zhongfeng Zhu

IPC: C04B28/00 ,  C04B14/04 ,  C04B14/30 ,  C04B16/04 ,  C04B22/06 ,  C04B24/42 ,  C04B40/00 ,  C04B103/10 ,  C04B103/30 ,  C04B103/50

CPC classification number: C04B28/006 ,  C04B14/045 ,  C04B14/305 ,  C04B16/04 ,  C04B22/062 ,  C04B24/42 ,  C04B40/0042 ,  C04B2103/10 ,  C04B2103/302 ,  C04B2103/50

Abstract: Disclosed are an alkali-activated geopolymer coating, and a preparation method and use thereof. The alkali-activated geopolymer coating, is prepared by raw materials including the following components: an aluminosilicate mineral, an alkali activator, and a performance additive; wherein the aluminosilicate mineral comprises fly ash, slag, and metakaolin; the performance additive comprises a polymer powder, titanium dioxide, a silicone defoamer, and a water-reducing admixture; and a mass ratio of the aluminosilicate mineral, the alkali activator, and the performance additive is in a range of 100:(60-80):(4-15).

公开(公告)号：US12258759B1

公开(公告)日：2025-03-25

申请号：US18894696

申请日：2024-09-24

Applicant: Shenzhen University

Inventor： Biao Hu ,  Ruibo Liu ,  Yingwu Zhou ,  Yufei Wu ,  Feng Xing ,  Zhongfeng Zhu

IPC: E04C5/07 ,  E04C5/16

Abstract: A Carbon Fiber Reinforced Polymer (CFRP) concrete composite component with partitioned cathodic protection and an operation and maintenance method thereof are provided. The composite component includes multiple longitudinal reinforcements, in which a first area, a second area and a third area corresponding to underwater, splash and atmosphere are arranged along an extending direction of each longitudinal reinforcement, respectively; a first spiral rib, which is wound around the multiple longitudinal reinforcements in the first area; a second spiral rib, which is wound around the multiple longitudinal reinforcements in the second area; a third spiral rib, which is wound around the multiple longitudinal reinforcements in the third area; a concrete; a power supply, where the first spiral rib, the second spiral rib and the third spiral rib are connected with a positive electrode of the power supply, and the longitudinal reinforcement is connected with a negative electrode of the power supply.

公开(公告)号：US12099037B1

公开(公告)日：2024-09-24

申请号：US18632412

申请日：2024-04-11

Applicant: Shenzhen University

Inventor： Biao Hu ,  Feiyang Yi ,  Yu Weng ,  Yufei Wu

IPC: G01N3/10 ,  G01N1/28 ,  G01N33/38

CPC classification number: G01N3/10 ,  G01N1/286 ,  G01N33/383 ,  G01N2001/2866

Abstract: A method for determining an optimal fiber content and fiber slenderness ratio in compression-cast fiber-reinforced concrete (CCFRC). The method includes: step 1, determining an optimal range of pressure of CCFRC with a mix proportion; step 2, applying optimal compressive stress to a fiber-reinforced concrete mixture, and performing a uniaxial compression test after demolding and curing; step 3, keeping the slenderness ratio of the fiber in step 1 and the optimal compressive stress in step 2 unchanged, decreasing or increasing content of the fiber, and repeating step 2 to obtain a mechanical property of CCFRC with different content of the fiber; and step 4, keeping the content of the fiber in step 1 and the optimal compressive stress in step 2 unchanged, decreasing or increasing a slenderness ratio of the fiber, and repeating step 2 to obtain a mechanical property of CCFRC with a different slenderness ratio of the fiber.

公开(公告)号：US12099785B2

公开(公告)日：2024-09-24

申请号：US18545983

申请日：2023-12-19

Applicant: Shenzhen University

Inventor： Yingwu Zhou ,  Biao Hu ,  Youbin Lan ,  Xiaoxu Huang ,  Feng Xing

IPC: G06F30/20 ,  G01N3/28 ,  G06F111/10

CPC classification number: G06F30/20 ,  G01N3/28 ,  G06F2111/10

Abstract: The present disclosure relates to an optimization method and system for hybrid FRP and steel bars. The optimization method includes: determining a cross-sectional bending bearing capacity, a maximum cross-sectional bending bearing capacity, and a minimum cross-sectional bending bearing capacity according to basic material parameters and a design value of a bending moment; determining whether the cross-sectional bending bearing capacity, the maximum cross-sectional bending bearing capacity, and the minimum cross-sectional bending bearing capacity meet a first preset condition; if yes, determining a maximum steel bar area according to the basic material parameters; determining a maximum ductility of a steel bar beam; determining whether the maximum ductility and the target ductility meet a second preset condition; if yes, determining a minimum steel bar area and a maximum FRP bar area according to the maximum steel bar area; and determining an actual steel bar area and an actual FRP bar area.

公开(公告)号：US20230321869A1

公开(公告)日：2023-10-12

申请号：US18125486

申请日：2023-03-23

Applicant: SHENZHEN UNIVERSITY

Inventor： Yufei Wu ,  Biao Hu ,  Xun Wang

IPC: B28C5/00 ,  B28B3/02

CPC classification number: B28C5/003 ,  B28B3/022

Abstract: The present disclosure discloses a method for compression casting concrete by reducing an amount of cement, including: adopting any existing concrete mix proportion designed for concrete of given strength, mixing the concrete, pouring the concrete into a mould, and compressing the concrete at a given pressure, where 28-day strength of the compacted concrete is increased; gradually reducing an amount of cement while keeping amounts of other materials unchanged, where 28-day strength of the concrete is gradually reduced until the concrete meets a design index; proportionally reducing amounts of water and cement in a last mix proportion while keeping amounts of other materials unchanged, where during compression casting of the concrete, discharge of cement paste is gradually reduced until no cement paste is discharged; and compression casting a concrete member according to a final mix proportion.

公开(公告)号：US20230321868A1

公开(公告)日：2023-10-12

申请号：US18127522

申请日：2023-03-28

Applicant: SHENZHEN UNIVERSITY

Inventor： Yufei Wu ,  Biao Hu ,  Xun Wang

IPC: B28B17/00 ,  B28B3/02 ,  C04B40/00

CPC classification number: B28B17/0081 ,  B28B3/022 ,  C04B40/0096 ,  C04B2111/00068

Abstract: The present disclosure discloses a method for compression casting concrete to reduce the amount of cement, including: adopting any existing concrete mix proportion designed for concrete of given strength, mixing the concrete, pouring the concrete into a mould, and compressing the concrete at a given pressure, where 28-day strength of the compacted concrete is increased; gradually reducing the amount of cement while keeping the amounts of other materials unchanged, where 28-day strength of the concrete is gradually reduced until the concrete meets a design index; proportionally reducing amounts of water and cement in a last mix proportion while keeping the amounts of other materials unchanged, where during compression casting of the concrete, discharge of cement paste is gradually reduced until no cement paste is discharged; and compression casting a concrete member according to a final mix proportion.

公开(公告)号：US11883982B2

公开(公告)日：2024-01-30

申请号：US18127522

申请日：2023-03-28

Applicant: SHENZHEN UNIVERSITY

Inventor： Yufei Wu ,  Biao Hu ,  Xun Wang

IPC: B28B3/02 ,  B28B17/00 ,  C04B40/00 ,  B28C5/00 ,  C04B111/00

CPC classification number: B28C5/003 ,  B28B3/022 ,  B28B17/0081 ,  C04B40/0096 ,  C04B2111/00051 ,  C04B2111/00068

Abstract: The present disclosure discloses a method for compression casting concrete to reduce the amount of cement, including: adopting any existing concrete mix proportion designed for concrete of given strength, mixing the concrete, pouring the concrete into a mould, and compressing the concrete at a given pressure, where 28-day strength of the compacted concrete is increased; gradually reducing the amount of cement while keeping the amounts of other materials unchanged, where 28-day strength of the concrete is gradually reduced until the concrete meets a design index; proportionally reducing amounts of water and cement in a last mix proportion while keeping the amounts of other materials unchanged, where during compression casting of the concrete, discharge of cement paste is gradually reduced until no cement paste is discharged; and compression casting a concrete member according to a final mix proportion.