权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

鋼材腐食したRC部材に適用可能な高耐食材料を利活用した補修補強手法の提案

提出一种适用于腐蚀钢筋混凝土构件的高耐腐蚀材料修复加固方法

基本信息

批准号：
22K04255
负责人：
上原子晶久
金额：
$ 2.66万
依托单位：
Hirosaki University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2022
资助国家：
日本
起止时间：
2022-04-01 至 2025-03-31
项目状态：
未结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K04255/
关键词：
補修補強電気防食熱可塑FRP 省力化

项目摘要

100×100×400mmのコンクリート角柱供試体内に，かぶり深さを30mmにしてD10鉄筋を1本埋め込む。それらに対して電食試験を行い内部の鉄筋を腐食させた。腐食率は20%程度を目標にした。その後，チタンリボンメッシュと熱可塑FRP棒材を埋め込む補修と補強を行った後に，防食電流を通電させた。通電時に防食試験として，回路内の電位差，オン電位，インスタントオフ電位，オフ電位などを測定した。この試験により，熱可塑FRP棒材に導通がないことを確認した。また，防食電流を通電させる前後で供試体の電気抵抗率を測定した。通電前後における電気抵抗率の変化がないことを確認して，防食電流を通電することによる悪影響がないことを確認した。以上，2つの試験終了後，供試体を解体して内部の状況を確認した。具体的には，熱可塑FRP棒材の変状の有無を確認し，さらには鉄筋の腐食量を実測した。

100x100x100x100x100xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x100x There is no need to buy food from electricity, food, food or food. The rate of saprophytic food is 20%. After that, use the plastic FRP bar to repair the plastic steel bar, strengthen the repair, and prevent the current from eating. During the normal period of time, there is an anti-food cycle, the electric potential difference in the circuit, the electrical potential in the circuit, the electrical potential in the circuit, and the electrical potential in the circuit. Please make sure that the plastic FRP bar can be used for confirmation. Anti-food power supply, anti-food current, anti-food, anti-food and anti-food. In the past and back, the electrical resistance rate of the battery has been adjusted, and the anti-food current has been confirmed by the consumer. The above, 2 days later, for the disassembly of the internal situation to confirm the situation. The shape of the plastic FRP bar is confirmed and the amount of rotten food is low.