公开(公告)号：US12292264B2

公开(公告)日：2025-05-06

申请号：US18164457

申请日：2023-02-03

Applicant: Qingdao University of Technology

Inventor： Yuyan Sun ,  Ziguo Wang ,  Zuquan Jin ,  Yong Yu ,  Xiaomei Wan

IPC: F41H5/007 ,  F41H5/04 ,  F41H5/22 ,  F41H5/24

Abstract: A frustum embedded fabricated composite protective structure is provided, including a restraint frame, a back plate, an infill block and a buffer block. The restraint frame is provided with a plurality of mounting holes matching with the shape of the infill block, the restraint frame is arranged on the back plate, the infill block is in a frustum shape. The buffer block and the infill block are installed in the mounting hole of the restraint frame, the buffer block is arranged on the smaller end of the infill block, and the infill block is wedged into the mounting hole of the restraint frame through a wedge surface mating. Because this protective structure is assembled by multiple restraint frames and infill blocks, under the prestress restraint of partition blocks, the damage range after penetration or explosion will be significantly reduced, and it can withstand multiple blows.

公开(公告)号：US11802092B2

公开(公告)日：2023-10-31

申请号：US18069915

申请日：2022-12-21

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY ,  Qingdao Institute of Marine Geology

Inventor： Bo Pang ,  Zuquan Jin ,  Yunsheng Zhang ,  Yong Yu ,  Xiaoying Zhang ,  Chuansheng Xiong ,  Ning Li ,  Xiaoyun Song ,  Mengyuan Li

IPC: C04B41/70 ,  C04B41/00 ,  C04B41/52 ,  C04B41/50 ,  C04B41/49

CPC classification number: C04B41/5011 ,  C04B41/4961

Abstract: A concrete curing agent, a curing coating layer and a preparation method thereof, the concrete curing agent comprises a hardening agent and a hydrophobic agent, the raw materials of the hardening agent comprises the following raw materials in parts by weight: 0.1-10 parts of fluorosilicate salt and 100 parts of water, and the hydrophobic agent comprises the following raw materials in parts by weight: 0.1-10 parts of a base catalyst, 1-10 parts of a silane coupling agent, 0.1-10 parts of hydrogen-containing silicone oil, 5-10 parts of a cross-linking agent, 10-100 parts of silica sol and 100-1000 parts of water. The present invention can significantly improve the strength, hardness and hydrophobicity, impermeability and freeze-thaw resistance of surface of concrete before and after hardening, and effectively improves the service life of concrete structures.