• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>第二届自密实混凝土设计、性能及应用技术国际研讨会(2nd International Symposium on Design,Performance and Use of Self-Consolidating Concrete SCC'2009-China) >ANTICORROSIVE BEHAVIOR OF SELF-CONSOLIDATING REINFORCED CONCRETE BEAMS AFTER CRACKED
【24h】

ANTICORROSIVE BEHAVIOR OF SELF-CONSOLIDATING REINFORCED CONCRETE BEAMS AFTER CRACKED

机译：破裂后自固结钢筋混凝土梁的抗腐蚀性能

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper provides corrosion information of reinforced concrete (RC) with self-consolidating concrete (SCC) before and after concrete cracked. In order to investigate the corrosion behavior of the embedded steel in self-consolidating reinforced concrete (SCRC) beams. The SCC was mixed according to densified mixture design algorithm (DMDA), compacted into the molds for SCRC beams. The SCRC beam and ordinary RC. beam under marine environment and under repeated loading and crack were studied. The concrete resistivity, steel potential, corrosion rate and the change of concentration of the CI" ion are measured with different admixtures. The results indicated that SCRC has higher resistivity than RC, the content of CI- ion and corrosion rate are lower than that before crack. The initial crack was appearance, the SCRC beam has small deflection and crack width, and the change of steel potential is small. Release the loading, the SCRC would self to close up the crack, and corrosion rate changed from corrodible to normal. However, along with the crack increases, each group of corrosion potential is growing, that corrosion will start as the crack formation,but if concrete with the addition of pozzolanic material it will reduce the corrosion symptom.
机译：本文提供了混凝土开裂前后钢筋混凝土（SCC）与自密实混凝土（SCC）的腐蚀信息。为了研究自固结钢筋混凝土（SCRC）梁中埋入式钢的腐蚀行为。根据致密混合物设计算法（DMDA）将SCC混合，压实到用于SCRC梁的模具中。 SCRC光束和普通RC。研究了海洋环境下，反复荷载和裂缝作用下的梁。用不同的掺量测量了混凝土的电阻率，钢势，腐蚀速率和CI“离子的浓度变化。结果表明，SCRC比RC具有更高的电阻率，CI-离子的含量和腐蚀速率均低于以前。初始裂纹为外观，SCRC梁的挠度和裂纹宽度较小，钢势的变化较小，释放载荷后，SCRC将自行封闭裂纹，腐蚀速率由腐蚀变为正常。但是，随着裂纹的增加，每组腐蚀电位都在增加，腐蚀将随着裂纹的形成而开始，但是如果混凝土中添加火山灰材料，则会减少腐蚀症状。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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