• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >Effect of Ultrasonic Parameters on Electrochemical Chloride Removal and Rebar Repassivation of Reinforced Concrete
【2h】

Effect of Ultrasonic Parameters on Electrochemical Chloride Removal and Rebar Repassivation of Reinforced Concrete

机译：超声参数对钢筋混凝土电化学除氯和钢筋钝化的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Electrochemical chloride removal (ECR) from reinforced concrete can be considered as an environment-friendly technique since it can reduce the environmental issues arising from demolition and reconstruction. In this study, we used ultrasonic waves to promote the ECR efficiency without increasing the current density so as to shorten the overall power-on time, lowering the power consumption and electricity-induced material damage. Rebar-embedded cement mortar specimens were prepared and a set of ultrasonic-assisted ECR test devices was designed. For obtaining the optimal parameters, different ultrasonic frequencies and powers were adopted to conduct the ECR test. After that, the discharged and residual chloride ion amounts were detected to characterize the ECR efficiency. The corrosion behavior of rebar was characterized by electrochemical method. It was found that ultrasonic waves can not only promote the discharge of chloride ions, but also promote the passivation process of steel bar. For this investigation, the ultrasonic waves with a frequency of 40 Hz and a power of 60 W had the best auxiliary effect and could reduce the work time by 64%. It is considered that the ultrasound-assisted method has potential to promote the application possibilities of the ECR technique.
机译：从钢筋混凝土中去除电化学氯化物（ECR）可以被认为是一种环境友好的技术，因为它可以减少因拆除和重建而引起的环境问题。在这项研究中，我们使用超声波来提高ECR效率，而又不增加电流密度，从而缩短了总体上电时间，降低了功耗和电致材料损坏。准备了钢筋包埋的水泥砂浆标本，并设计了一套超声辅助的ECR测试设备。为了获得最佳参数，采用了不同的超声频率和功率进行ECR测试。之后，检测排出的氯离子量和残留的氯离子量，以表征ECR效率。用电化学方法表征了钢筋的腐蚀行为。发现超声波不仅可以促进氯离子的释放，而且可以促进钢筋的钝化过程。对于此研究，频率为40 Hz，功率为60 W的超声波具有最佳的辅助效果，可以将工作时间减少64％。认为超声辅助方法具有促进ECR技术的应用可能性的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号