Journal
MATERIALS CHARACTERIZATION
Volume 151, Issue -, Pages 203-215Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2019.02.014
Keywords
MIP; Surface conformance; X-CT; Entrapment; Characterization
Categories
Funding
- National Natural Science Foundation of China [51878602, 51578194]
Ask authors/readers for more resources
Mercury entrapment in a porous material after mercury intrusion porosimetry (MIP) test is widely reported, yet the characterization of the entrapped mercury remains unclear. This study reported an experimental investigation on the entrapped mercury in a porous cement paste with/without surface-conformance control determined by X-ray computed tomography (X-CT). MIP tests were performed under three different maximum intrusion pressures. Results show that the surface-conformance control can substantially depress the first rise of throat size distributions and lower the threshold throat sizes. The entrapped mercury drops can be easily traced by X-CT due to the high mass attenuation coefficient of mercury. Both the entrapped and released mercury drops only occupy the limited volume fraction of the intruded pores. The surface conformance can decrease the mercury volume released from the pores. The findings of this study provide insights in better pore structure characterization of porous cement-based materials.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available