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公开(公告)号：US12030821B1
公开(公告)日：2024-07-09
申请号：US18522139
申请日：2023-11-28
Applicant: Qingdao University of Technology
Inventor： Bo Pang , Zuquan Jin , Guoqing Geng , Yunsheng Zhang , Cheng Liu , Yidong Chen , Dafu Wang , Rusheng Qian
CPC classification number: C04B41/4922 , C04B41/463 , C04B41/5035
Abstract: A concrete interface agent relates to the technical field of concrete surface protection, an ingredient of the concrete interface agent comprises 55 to 100 parts by weight of a nano-calcium salt solution and a nano-SiO2 precursor, 0.1 to 0.4 parts by weight of a surfactant, 30 to 60 parts by weight of a silane coupling agent and 10 to 40 parts by weight of a polydimethylsilane, an ingredient of the nano-calcium salt solution comprises 2 to 5 parts by weight of a calcium hydroxide, 2 to 5 parts by weight of an acid catalyst and 200 to 500 parts by weight of an alcohol-based organic solvent, which can form a coating layer with higher hydrophobic angle on the concrete surface, reduce the water absorption of the concrete, and is not easy to crack after drying, which has more protective effect and longer service life than the existing TEOS interface agent.
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公开(公告)号：US11802092B2
公开(公告)日：2023-10-31
申请号：US18069915
申请日：2022-12-21
Inventor： Bo Pang , Zuquan Jin , Yunsheng Zhang , Yong Yu , Xiaoying Zhang , Chuansheng Xiong , Ning Li , Xiaoyun Song , Mengyuan Li
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.
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公开(公告)号：US12030812B1
公开(公告)日：2024-07-09
申请号：US18429030
申请日：2024-01-31
Applicant: Qingdao University of Technology
Inventor： Zuquan Jin , Bo Pang , Yunsheng Zhang , Dongshuai Hou , Heping Zheng
IPC: C04B28/00 , C04B24/02 , C04B103/00 , C04B111/74
CPC classification number: C04B28/006 , C04B24/023 , C04B2103/0046 , C04B2111/74
Abstract: An underwater rapid repair material for marine steel structure comprises: 20 to 50 parts by weight of an alkali activation material, 3 to 12 parts by weight of a fast hardening waterborne polymer curing agent, 2 to 8 parts by weight of a fast hardening waterborne polymer precursor, 30 to 100 parts by weight of an aggregate, 1 to 5 parts by weight of an activator and 3 to 20 parts by weight of a water. The underwater rapid repair material provided by the present invention is not dispersed and segregated in water, with an initial setting time as low as 0.5 hours and a final setting time as low as 1.1 hours, after pouring 3 hours, the compressive strength and flexural strength can reach about 60 MPa and 10 MPa respectively, and has high bonding strength to steel and is not easy to fall off after solidification.
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