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

Author(s): J. Yuan, Y. Liu, B.K. Zhang and H.X. Li
Book Title: RILEM International Symposium on Concrete Modelling - CONMOD 2014
Editor: Kefei Li, Peiyu Yan and Rongwei Yang
ISBN: 978-2-35158-139-1
e-ISBN: 978-2-35158-140-7
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 447-451
Total Pages: 5
Language: English

Abstract: 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.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00