• 首页
  • 期刊介绍
  • 编委会
  • 征稿启事
  • 期刊订阅
  • 相关下载
  • 联系我们
冻融循环作用下混凝土的冲击波传播特性
Characteristics of Impact Elastic Wave Propagation in Concrete after Freeze Thaw Cycle
投稿时间:2018-09-30  修订日期:2018-11-23
DOI:103969/j.issn.1007 9629201906014
中文关键词:  混凝土  冻融循环  冲击波  动弹性模量  耐久性
英文关键词:concrete  freeze thaw cycle  impact elastic wave  dynamic elastic modulus  durability
基金项目:国家自然科学基金资助项目(51479013,51609027)
           
作者单位
董玉文
DONG Yuwen
重庆交通大学水工建筑物健康诊断技术重庆市高校工程研究中心,重庆400074
Diagnostic Technology on Health of Hydraulic Structures Engineering Research Center of Chongqing Education Commission of China, Chongqing Jiaotong University, Chongqing 400074, China
陆木秀
LU Muxiu
湖南润丰源水利技术服务咨询有限公司,湖南郴州423000
Hunan Runfengyuan Hydrotechnics Service Consulting Co.,Ltd., Chenzhou 423000, China
郑磊
ZHENG Lei
重庆交通大学水工建筑物健康诊断技术重庆市高校工程研究中心,重庆400074
Diagnostic Technology on Health of Hydraulic Structures Engineering Research Center of Chongqing Education Commission of China, Chongqing Jiaotong University, Chongqing 400074, China
卢海龙
LU Hailong
重庆交通大学水工建筑物健康诊断技术重庆市高校工程研究中心,重庆400074
Diagnostic Technology on Health of Hydraulic Structures Engineering Research Center of Chongqing Education Commission of China, Chongqing Jiaotong University, Chongqing 400074, China
摘要点击次数: 110
全文下载次数: 0
中文摘要:
      通过室内试验,研究了混凝土冻融循环次数、水灰比对其质量损失率、动弹性模量及冲击波波速的影响,同时分析了采用冲击回波法测试混凝土动弹性模量的可行性.结果表明:混凝土的质量损失率、动弹性模量均随着冻融循环次数的增加而逐渐减小;混凝土水灰比越大,其质量损失越大,动弹性模量及冲击波波速越小;采用冲击回波法测定的混凝土动弹性模量与规范采用的共振法测定结果基本一致.
英文摘要:
      The influences of freeze thaw cycles and water cement ratio on mass loss ratio, dynamic elastic modulus, and impact elastic wave speed were observed. The reliability of measuring dynamic elastic modulus by impact echo method was investigated. Results show that the mass loss ratio and dynamic elastic modulus of concrete decrease gradually when number of freeze thaw cycle increases. The mass loss increases, dynamic elastic modulus and impact elastic wave speed decrease when the water cement ratio increases. The dynamic elastic modulus measured by impact echo method is consistent with that measured by resonance method in standard.
查看全文  查看/发表评论  下载PDF阅读器
关闭