公开(公告)号：US20210231371A1

公开(公告)日：2021-07-29

申请号：US16633299

申请日：2018-12-27

Applicant: SHANDONG UNIVERSITY

Inventor： Zhi GE ,  Huaqiang YUAN ,  Renjuan SUN ,  Yanhua GUAN ,  Xuechi GAO ,  Yufeng BI ,  Zhichao XUE ,  Yanqiu HU ,  Yujie FENG ,  Jiajie WU ,  Xinlei HU ,  Jin QIN ,  Yikai WANG

IPC: F26B21/02 ,  C04B20/02 ,  C04B18/16 ,  F26B25/08

Abstract: A device and method for reinforcing recycled aggregate based on in-situ C—S—H production including a first, second, third chamber, and a blast drier. A spray structure arranged on the top of the third chamber; the first and second chamber connected to the spray structure through pumps. A hollowed container arranged at the bottom of the spray structure. A certain gap reserved between the bottom of the container and the bottom of the third chamber, the bottom of the third chamber is provided with at least one drain outlet; the blast drier connected to the bottom of the third chamber, and a cover is arranged on the top of the third chamber. The first chamber contains calcium hydroxide solution. The second chamber contains a mixed solution of TEOS, water and anhydrous ethanol. The container is arranged in the third chamber, and the container is used to contain to-be-treated recycled aggregate.

公开(公告)号：US20230364824A1

公开(公告)日：2023-11-16

申请号：US18358356

申请日：2023-07-25

Applicant: SHANDONG UNIVERSITY ,  Shandong High-Speed Group Co., Ltd.

Inventor： Hongzhi ZHANG ,  Zhijie LI ,  Yingxuan SHAO ,  Yifeng LING ,  Zhiqiang LIU ,  Chen CHEN ,  Zhi GE ,  Renjuan SUN ,  Yanhua GUAN

IPC: B28B1/14 ,  C04B22/10 ,  C04B7/147 ,  C04B18/08 ,  C04B11/26 ,  C04B28/08 ,  C04B28/14 ,  B28B17/00

CPC classification number: B28B1/14 ,  C04B22/106 ,  C04B7/147 ,  C04B18/08 ,  C04B11/262 ,  C04B28/082 ,  C04B28/142 ,  B28B17/0081 ,  C04B2111/00198

Abstract: A carbonized brick of recycled concrete powders and a preparation method thereof are provided, belonging to the field of concrete materials. The preparation method includes: adding composition A to a liquid storage tank; introducing composition B into the liquid storage tank to react with a solid waste solution to generate calcium bicarbonate solution; filling recycled powders into a molding die, decomposing the calcium bicarbonate solution by heat, reacting generated carbon dioxide with calcium ions leached from a C—S—H gel in the recycled powders to produce calcium carbonate, and precipitating, crystallizing and cementing in the molding die together with calcium carbonate produced by decomposing calcium bicarbonate solution, and resulting in strength of the recycled powders.

公开(公告)号：US20230384180A1

公开(公告)日：2023-11-30

申请号：US18321811

申请日：2023-05-23

Applicant: SHANDONG HI-SPEED GROUP CO., LTD. ,  SHANDONG UNIVERSITY

Inventor： Qifeng WANG ,  Zhi GE ,  Chuan WANG ,  Yifeng LING ,  Ning ZHANG ,  Hongzhi ZHANG ,  Xiang GAO ,  Yuliang WANG ,  Hongyuan XIAO ,  Yanhua GUAN ,  Renjuan SUN ,  Meijun LIANG ,  Yujie FENG

IPC: G01M5/00 ,  E01D19/12

CPC classification number: G01M5/0041 ,  E01D19/125 ,  E01D2101/26

Abstract: A reinforcement and bearing capacity calculation method for a self-stressed bridge deck link slab includes: calculating a cross-section moment of inertia of the link slab and a negative moment borne by the link slab; introducing a design self-stress according to stress distribution of the self-stressed bridge deck link slab, whether reinforced or un-reinforced; calculating a cracking moment of the plain self-stressed bridge deck link slab, comparing the cracking moment and the negative moment, proceeding to the next step, or configuring a structural reinforcement as needed; determining a design strength of reinforcement, selecting a reinforcement ratio, and calculating a resisting moment of the link slab; comparing the resisting moment and the negative moment of the link slab, design conditions are satisfied, or configuring the reinforcement ratio and carrying out iterative calculation to obtain a resisting moment; and analyzing stress on the reinforcement and concrete.