Freeze-thaw crack determination in cementitious materials using 3D X-ray computed tomography and acoustic emission

2018 ◽  
Vol 89 ◽  
pp. 120-129 ◽  
Author(s):  
Yasmina Shields ◽  
Edward Garboczi ◽  
Jason Weiss ◽  
Yaghoob Farnam
Keyword(s):  
Computed Tomography ◽  
Acoustic Emission ◽  
Cementitious Materials ◽  
X Ray ◽  
Freeze Thaw ◽  
X Ray Computed

Use of acoustic emission and X-ray computed tomography for damage evaluation of freeze-thawed concrete

2010 ◽  
Vol 24 (12) ◽  
pp. 2347-2352 ◽  
Author(s):  
Tetsuya Suzuki ◽  
Hidehiko Ogata ◽  
Ryuichi Takada ◽  
Masao Aoki ◽  
Masayasu Ohtsu
Keyword(s):  
Computed Tomography ◽  
Acoustic Emission ◽  
Damage Evaluation ◽  
X Ray ◽  
X Ray Computed

scholarly journals Evaluation of Microstructure and Transport Properties of Deteriorated Cementitious Materials from Their X-ray Computed Tomography (CT) Images

Materials ◽  
2016 ◽  
Vol 9 (5) ◽  
pp. 388 ◽  
Author(s):  
Michael Promentilla ◽  
Shermaine Cortez ◽  
Regina Papel ◽  
Bernadette Tablada ◽  
Takafumi Sugiyama
Keyword(s):  
Computed Tomography ◽  
Transport Properties ◽  
Cementitious Materials ◽  
Ct Images ◽  
X Ray ◽  
X Ray Computed

scholarly journals Pore Structure Analysis of Mortar Under Freeze-Thaw Cycles Using X-Ray Computed Tomography

◽  
2016 ◽  
Author(s):  
Katsufumi Hashimoto ◽  
◽  
Hiroshi Yokota ◽  
Takafumi Sugiyama ◽  
◽  
...  
Keyword(s):  
Computed Tomography ◽  
Pore Structure ◽  
Structure Analysis ◽  
X Ray ◽  
Freeze Thaw ◽  
X Ray Computed ◽  
Pore Structure Analysis

Study on Mechanism of Freeze-Thaw Cycles Induced Changes in Soil Strength Using Electrical Resistivity and X-Ray Computed Tomography

2017 ◽  
Vol 139 (2) ◽  
Author(s):  
Xiaoliang Yao ◽  
Lili Fang ◽  
Jilin Qi ◽  
Fan Yu
Keyword(s):  
Computed Tomography ◽  
Electrical Resistivity ◽  
Triaxial Compression ◽  
Friction Angle ◽  
Soil Samples ◽  
Soil Particles ◽  
X Ray ◽  
Freeze Thaw ◽  
Apparent Cohesion ◽  
X Ray Computed

In this study, freeze-thaw cycles were conducted on samples of a fine grained soil from the Qinghai–Tibetan plateau which had been prepared with different dry unit weights. During freeze-thaw cycles, electrical resistivity was measured. The soil samples were also scanned by X-ray computed tomography (CT) before and after freeze-thaw cycles. Unconsolidated and drained (UD) triaxial compression test was performed to obtain the apparent friction angle and cohesion. Changes in the arrangement and connections between soil particles were analyzed so as to investigate the mechanisms of changes in the strength parameters. The electrical resistivity increased in all samples, regardless of the different original dry unit weights, which implies that in all cases the arrangement of soil particles became more irregular and attached area between soil particles was increased. These changes contributed to the increase of apparent friction angle. On the other hand, the CT scans indicated that, depending upon the original dry unit weight, freeze-thaw cycles induced strengthening or deterioration in particle connections, and thus apparent cohesion was increased or decreased. With three freeze-thaw cycles, changes in microstructure of soil samples led to increases or decrease in both the apparent friction angle and cohesion.

scholarly journals Characterization of air-void systems in 3D printed cementitious materials using optical image scanning and X-ray computed tomography

2021 ◽  
Vol 173 ◽  
pp. 110948
Author(s):  
Yu Chen ◽  
Oğuzhan Çopuroğlu ◽  
Claudia Romero Rodriguez ◽  
Fernando F. de Mendonca Filho ◽  
Erik Schlangen
Keyword(s):  
Computed Tomography ◽  
Cementitious Materials ◽  
Optical Image ◽  
Image Scanning ◽  
X Ray ◽  
3D Printed ◽  
X Ray Computed ◽  
Air Void
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