公开(公告)号：US20210323879A1

公开(公告)日：2021-10-21

申请号：US17268290

申请日：2020-04-30

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Jianlin LUO ,  Qiuyi LI ,  Chao LIU ,  Shaochun LI ,  Song GAO ,  Xueqing ZHU

IPC: C04B38/10 ,  E04C2/04 ,  E04C2/288 ,  E04B2/00 ,  C04B28/04 ,  C04B41/64 ,  C04B41/00

Abstract: A nano-modified material for cavity wall with insulation for prefabricated building, preparation method and application thereof, belonging to the technical field of building materials. The material includes splicing structures and a nano-modified silane waterproof coating, wherein the splicing structure includes a recycled concrete structure layer and a nano-modified foam concrete thermal insulation core layer, the recycled concrete structure layer is a hollow cuboid structure with openings at both ends, the nano-modified foam concrete thermal insulation core layer is a structure formed by casting inside the recycled concrete structure layer, and the nano-modified silane waterproof coating is applied at a butt joint of two of the splicing structures.

公开(公告)号：US20250018361A1

公开(公告)日：2025-01-16

申请号：US18275297

申请日：2022-11-18

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun LI ,  Xu CHEN ,  Mengjun HU ,  Yongjuan GENG ,  Zuquan JIN ,  Song GAO ,  Dongshuai HOU

IPC: B01J20/06 ,  B01D53/62 ,  B01J20/28 ,  B01J20/30 ,  C04B41/00 ,  C04B41/45 ,  C04B41/48 ,  C04B41/63

Abstract: Provided are a titanium sol carbon sequestration additive and a preparation method and use thereof, and a method for carbon sequestration of a cement-based material. The method for preparing the titanium sol carbon sequestration additive includes: mixing titanium tetraisopropanolate with an ammonia aqueous solution to obtain a first mixture, subjecting the first mixture to hydrolysis to obtain a hydrolysis solution, and drying the hydrolysis solution to obtain a titanium dioxide powder; mixing the titanium dioxide powder with sodium polyacrylate and a methyldiethanolamine (MDEA) aqueous solution to obtain a second mixture, and subjecting the second mixture to amination to obtain a solution A; mixing water with ethanol to obtain a solution B; and mixing the solution A and the solution B with a catalyst to obtain a mixed solution, and subjecting the mixed solution to solation to obtain the titanium sol carbon sequestration additive.

公开(公告)号：US20220371960A1

公开(公告)日：2022-11-24

申请号：US17619534

申请日：2020-07-30

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Jianlin LUO ,  Jigang ZHANG ,  Qiuyi LI ,  Song GAO ,  Peng ZHANG ,  Fei TENG

IPC: C04B28/06 ,  C04B28/04 ,  C04B28/14 ,  C04B24/26 ,  C04B18/06 ,  C04B18/08

Abstract: An anti-corrosive concrete grouting material for coastal structure connection and a method for preparing the same, belonging to the technical field of anti-corrosion of coastal assembled structure connectors. The grouting material includes the following components: expansible compound cement, slag sand, fly ash (FA), polyvinyl alcohol (PVA) (containing an oxidant and a catalyst), graphene oxide (GO), a water reducer, an adjusting admixture, a defoaming agent, a mineral admixture and water. A shrinkage-free effect of the grouting material is realized through internal curing of GO-PVA hydrogel, micro-expansion of the compound cement and shrinkage reduction effect of the FA; an energy storage effect of a GO-PVA hydrogel micro-capacitor is exerted to avoid formation of a reinforcement corrosion micro-battery in a grouting material sleeve, a reinforcement corrosion self-immune effect is achieved, seawater corrosion resistance of the grouting material is improved by the slag sand, and it has huge economic and environmental protection benefits.