公开(公告)号：US10927275B2

公开(公告)日：2021-02-23

申请号：US16608633

申请日：2019-06-04

Applicant: Qingdao University of Technology

Inventor： Shaochun Li ,  Dongshuai Hou ,  Yongjuan Geng ,  Wenjuan Zhang ,  Zuquan Jin ,  Yaguang Zhu ,  Youlai Zhang

IPC: C09D183/04 ,  C09D5/10 ,  C08K3/22 ,  C08K9/06 ,  C09D7/62

Abstract: The present invention relates to the field of building surface coating technologies, and in particular, to an alumina sol-silane composite material and a preparation method and application thereof. The alumina sol-silane composite material provided in the present invention is prepared by raw materials including the following components by weight parts: 5 to 45 parts of alumina sol, 30 to 90 parts of silane, 3 to 10 parts of silane coupling agent, and 1 to 5 parts of dispersant. A hydrophobic anticorrosive coating can be formed after coating the alumina sol-silane composite material provided in the present invention to a surface of a cement-based material, and has good waterproof performance and corrosion resistance.

公开(公告)号：US11312866B2

公开(公告)日：2022-04-26

申请号：US16850141

申请日：2020-04-16

Applicant: Qingdao University of Technology

Inventor： Yongjuan Geng ,  Shaochun Li ,  Dongshuai Hou ,  Zuquan Jin ,  Xu Chen ,  Qilong Xiao ,  Weifeng Zhang ,  Dongyi Lei ,  Jing Gao

IPC: C09D5/02 ,  C04B38/00 ,  C09D5/00 ,  C04B103/48 ,  C04B103/65

Abstract: A superhydrophobic coating is provided and contains organosilane, an inorganic nanomaterial, and an emulsifying agent. A mass proportion of the components is controlled, so that the superhydrophobic coating can form a micro-nano mixed microstructure inside foam concrete. The organosilane first forms dense hydrophobic surface layers on the surface and in inner pores of the foam concrete, and the nanomaterial forms uniformly distributed nano-bulges on the hydrophobic surface layers formed by the silane. The superhydrophobic performance of the foam concrete can be effectively improved by combining the two microstructures. The foam concrete exhibits excellent superhydrophobic performance.

公开(公告)号：US10822789B1

公开(公告)日：2020-11-03

申请号：US16939092

申请日：2020-07-27

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Ben Mou ,  Dongshuai Hou ,  Yi Liu ,  Zunqiang Li

IPC: E04B1/26 ,  E04B1/30 ,  E04B5/12 ,  E04C3/36 ,  E04B5/02

Abstract: A folding slab and a central column composite joint and an assembly method thereof, wherein the folding slab and a prefabricated column-beam composite joint adopting a steel-wood composite structure guarantees a construction quality, improves a construction efficiency, and optimizes a seismic performance of a structure. The folding slab and the central column composite joint including a steel-wood composite column, square wood columns, connecting assemblies for connecting the steel-wood composite column and the square wood beams, and folding wood slabs connected with and supported by the steel-wood composite column, the square wood columns and the connecting assemblies.

公开(公告)号：US20240300857A1

公开(公告)日：2024-09-12

申请号：US17999157

申请日：2021-07-27

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun Li ,  Shilin Xu ,  Ang Liu ,  Yongjuan Geng ,  Dongshuai Hou ,  Ruiyong Zhang ,  Zuquan Jin ,  Song Gao

IPC: C04B24/04 ,  C04B14/04 ,  C04B24/32 ,  C04B24/42 ,  C04B40/00 ,  C04B103/40 ,  C04B103/56

CPC classification number: C04B24/04 ,  C04B14/045 ,  C04B24/32 ,  C04B24/42 ,  C04B40/0046 ,  C04B2103/408 ,  C04B2103/58

Abstract: The present disclosure provides use of a graphene oxide/butyl acrylate/silane composite emulsion as an anti-shrinkage agent of a cement-based material. In the present disclosure, active groups on an isobutyltriethoxysilane molecule reacts with hydroxyl groups on a surface of a mortar to form a layered hydrophobic structure, thereby slowing a water loss in the mortar of the cement-based material and avoiding cracking caused by drying shrinkage. Butyl acrylate can be dehydrated to form polymer fibers with a spatial network to fill pores of a cement paste, thereby limiting the shrinkage of the mortar. Graphene oxide has a relatively large specific surface area and oxygen-containing functional groups on a surface, which can provide growth sites for hydration products, and promote the hydration products to form a regular and dense structure in the form of a template, thus ensuring a strength of the cement-based material.

公开(公告)号：US11268946B2

公开(公告)日：2022-03-08

申请号：US17286829

申请日：2020-06-11

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Penggang Wang ,  Zuquan Jin ,  Tiejun Zhao ,  Dongshuai Hou ,  Li Tian ,  Peng Zhang ,  Xiaomei Wan ,  Siyao Guo ,  Yupeng Tian

IPC: G01N33/38 ,  G08B3/10 ,  G08B13/196 ,  G08B21/18 ,  H04N7/18

Abstract: A life-cycle performance intelligent-sensing and degradation warning system and method for concrete structures are disclosed. The warning system comprises a main control module, a multifunctional sensor module, an anti-theft module and a critical warning module. Environmental parameters in concrete are monitored by the multifunctional sensor module, and the remaining service life of a concrete structure is accurately predicted through a life prediction model according to the temperature, humidity, chloride ion concentration and pH at different depths, and a critical chloride ion concentration and a structure stress status that are dynamically obtained. In addition, during warning analysis, a targeted correction method is designed for acquired data, and temperature and pH correction is carried out for real-time monitoring data of the chloride ion sensor to further guarantee the accuracy of monitoring data, such that scientific references are provided for durability evaluation, protection and restoration of the structure.

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.

公开(公告)号：US11447419B2

公开(公告)日：2022-09-20

申请号：US17053424

申请日：2019-12-30

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Dongshuai Hou ,  Xinpeng Wang ,  Mengmeng Li ,  Qihui Geng ,  Pan Wang ,  Bing Yin ,  Yue Zhang

IPC: C04B28/04 ,  C04B14/18 ,  C04B14/48 ,  C04B18/14 ,  C04B20/00 ,  C04B24/26 ,  C04B40/00 ,  C04B40/02 ,  C04B103/30 ,  C04B103/32

Abstract: The disclosure relates to the technical field of building materials, and in particular, to lightweight aggregate ultra-high performance concrete (UHPC) and a preparation method thereof. The lightweight aggregate UHPC provided in the disclosure is prepared from the following components in parts by weight: cement 220-260 parts; silica fume 100-120 parts; expanded perlite powder 120-160 parts; expanded perlite 230-260 parts; polycarboxylate superplasticizer 15-20 parts; steel fiber 76-93 parts; and water 140-160 parts, where a maximum particle size of the expanded perlite powder is 0.075 mm; and a particle size range of the expanded perlite is 0.075-0.6 mm. The lightweight UHPC prepared according to the design of the disclosure has excellent density performance, and can satisfy requirements of concrete components, etc. in service in super-long-span bridges, super high-rise buildings, and complex marine environments for lightweight, ultra-high strength, and ultra-high durability of cement-based materials, and has a relatively high promotion value.

公开(公告)号：US20210009855A1

公开(公告)日：2021-01-14

申请号：US16608633

申请日：2019-06-04

Applicant: Qingdao University of Technology

Inventor： Shaochun Li ,  Dongshuai Hou ,  Yongjuan Geng ,  Wenjuan Zhang ,  Zuquan Jin ,  Yaguang Zhu ,  Youlai Zhang

IPC: C09D183/04 ,  C09D5/10 ,  C09D7/62 ,  C08K9/06 ,  C08K3/22

Abstract: The present invention relates to the field of building surface coating technologies, and in particular, to an alumina sol-silane composite material and a preparation method and application thereof. The alumina sol-silane composite material provided in the present invention is prepared by raw materials including the following components by weight parts: 5 to 45 parts of alumina sol, 30 to 90 parts of silane, 3 to 10 parts of silane coupling agent, and 1 to 5 parts of dispersant. A hydrophobic anticorrosive coating can be formed after coating the alumina sol-silane composite material provided in the present invention to a surface of a cement-based material, and has good waterproof performance and corrosion resistance.

公开(公告)号：US20240254047A1

公开(公告)日：2024-08-01

申请号：US18004560

申请日：2021-07-27

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun Li ,  Shilin Xu ,  Ang Liu ,  Yongjuan Geng ,  Dongshuai Hou ,  Ruiyong Zhang ,  Zuquan Jin ,  Song Gao

IPC: C04B24/42 ,  C04B22/06 ,  C04B40/00 ,  C04B103/40

CPC classification number: C04B24/42 ,  C04B22/066 ,  C04B40/0046 ,  C04B2103/408

Abstract: Provided is the use of a silane composite emulsion as an anti-cracking enhancer in a cement-based material. In the present disclosure, active groups on an isobutyltriethoxysilane molecule react with hydroxyl groups on a surface of a mortar to form a layered hydrophobic structure, slowing down a water loss inside the mortar of a cement-based material. The dehydration of butyl acrylate forms a network structure, which fills pores of the cement-based material, inhibits shrinkage of the cement-based material, and reduces the cracking caused by the shrinkage. Tetraethoxysilane can undergo hydrolysis at a room temperature to generate nano-silica with a large number of hydroxyl groups on a surface; and the nano-silica can undergo secondary hydration with calcium hydroxide in the cement to form a secondary hydration product C—S—H gel, thereby filling most of voids to make a structure of the cement hydration product denser, to increase a strength of the mortar.

公开(公告)号：US11879069B2

公开(公告)日：2024-01-23

申请号：US16979467

申请日：2020-03-05

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun Li ,  Dongshuai Hou ,  Yongjuan Geng ,  Wenjuan Zhang ,  Zuquan Jin ,  Yaguang Zhu ,  Youlai Zhang

IPC: C09D7/61 ,  C09D7/65 ,  C09D5/08 ,  C09D183/06

CPC classification number: C09D7/61 ,  C09D5/084 ,  C09D7/65 ,  C09D183/06

Abstract: The present invention provides a graphene oxide-tetraethyl orthosilicate (TEOS)/silane composite gel material, and a preparation method and use thereof, and belongs to the technical field of building surface coating. The graphene oxide-TEOS/silane composite gel material provided by the present invention includes the following components: 5-45 parts by weight of graphene oxide dispersion, 30-90 parts by weight of TEOS, 30-80 parts by weight of silane, 1-5 parts by weight of emulsifier, and 1-5 parts by weight of dispersant; the graphene oxide dispersion has a concentration of 0.5-5%. The graphene oxide-TEOS/silane composite gel material provided by the invention can form a hydrophobic anticorrosive coating after coating the surface of a cement-based material, and has excellent water resistance and corrosion resistance.