Modeling the elastic modulus of cement paste with X-ray computed tomography and a hybrid analytical-numerical algorithm: The effect of structural heterogeneity

2021 ◽  
pp. 104145
Author(s):  
Y. Gao ◽  
W. Li ◽  
K. Wu ◽  
Q. Yuan
Keyword(s):  
Computed Tomography ◽  
Elastic Modulus ◽  
Cement Paste ◽  
Numerical Algorithm ◽  
Structural Heterogeneity ◽  
X Ray ◽  
X Ray Computed

Density mapping of hardened cement paste using ptychographic X-ray computed tomography

2013 ◽  
Vol 36 ◽  
pp. 71-77 ◽  
Author(s):  
Pavel Trtik ◽  
Ana Diaz ◽  
Manuel Guizar-Sicairos ◽  
Andreas Menzel ◽  
Oliver Bunk
Keyword(s):  
Computed Tomography ◽  
Cement Paste ◽  
Hardened Cement ◽  
Hardened Cement Paste ◽  
X Ray ◽  
Density Mapping ◽  
X Ray Computed

Effect of Fly Ash on the early Age Cracking Performance of Cement Paste

2014 ◽  
Vol 584-586 ◽  
pp. 894-898
Author(s):  
Ping Zhang ◽  
Guan Guo Liu ◽  
Chao Ming Pang ◽  
Bing Du ◽  
Hong Gen Qin
Keyword(s):  
Computed Tomography ◽  
Fly Ash ◽  
Cement Paste ◽  
Test Method ◽  
Early Age ◽  
Cement Ratio ◽  
X Ray ◽  
Cracking Performance ◽  
X Ray Computed ◽  
Ct Test

The X ray computed tomography (X-CT) was applied to test the cracking resistance of cement paste, and the hydration process was monitored to study the effect of fly ash on the early age cracking performance. The results showed that the hydration heat reduced with the increase of fly ash under the same water-cement ratio. Within 24h, the porosity increased with time. The addition of fly ash increased the proportion of large holes and then changed the internal stress state. Using X-CT test method and by comparing the number of cracks, the sample with 20% FA was found to have the most serious cracks, whereas the sample with 30% FA had the best crack resistance.

Visualization of Penetration of NanoSiO2 into Cement Paste Using X-ray Computed Tomography

2018 ◽  
Vol 10 (1) ◽  
pp. 135-137
Author(s):  
Yue Gu ◽  
Qianping Ran ◽  
Zhenhua Wei ◽  
Wei She ◽  
Jiaping Liu
Keyword(s):  
Computed Tomography ◽  
Cement Paste ◽  
X Ray ◽  
X Ray Computed

Micro- and nano-X-ray computed-tomography: A step forward in the characterization of the pore network of a leached cement paste

2015 ◽  
Vol 67 ◽  
pp. 138-147 ◽  
Author(s):  
Nathan Bossa ◽  
Perrine Chaurand ◽  
Jérôme Vicente ◽  
Daniel Borschneck ◽  
Clément Levard ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cement Paste ◽  
Pore Network ◽  
X Ray ◽  
X Ray Computed
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