RESEARCH OF THE FAILURE PROCESS OF CONCRETE UNDER THE EFFECT OF FREEZING-THAWING CYCLE BY USING X-RAY INDUSTRIAL CT TECHNIQUE

摘要：

　　Freezing-thawing cycle is one important factor related with the durability of concrete.In this study, the X-ray industrial CT technique was applied to investigate the failure process of concrete material under the effect of the freezing-thawing cycles.Firstly, an experiment was designed in order to investigate the changing rule of the concrete specimens acted by a certain numbers of freezing-thawing cycles.Secondly, the variation of concrete porosity and the change of the whole volume of the concrete pore were summarized by scanning the samples with the X-ray CT technique.Finally, different factors related with the freezing-thawing process of concrete were analyzed and discussed.The changing rule of the porosity and whole volume of concrete pores appeared burst point at the No.30 cycle of freezing-thawing.

作者: J.Yuan Y.Liu B.K.Zhang H.X.Li

作者单位: School of Transportation Science and Engineering,Harbin Institute of Technology,China North China Municipal Engineering Design & Research Institute,China Shandong Medical College,China

会议类型: 国际会议

会议名称: The Fourth RILEM International Symposium on Concrete Modelling (CONMOD 2014)(第四届RILEM混凝土材料建模国际会议)

会议地点: 北京

会议语种:英文

页码: 448-452

在线出版日期: 2014-10-12（万方平台首次上网日期，不代表论文的发表时间）