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.