Characterization of Pore Structure of Hardened Cement-Asphalt Paste by Mercury Intrusion Porosimetry

Sheng Zhang; Xi Ling Zhou; Ke Ren Zheng; You Jun Xie; Qiang Fu

doi:10.4028/www.scientific.net/AMR.1004-1005.1589

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1004-1005Characterization of Pore Structure of Hardened...

Characterization of Pore Structure of Hardened Cement-Asphalt Paste by Mercury Intrusion Porosimetry

Abstract:

To know the pore structure of cement-asphalt pastes, mercury intrusion porosimetry was applied to measure the total porosity, pore distribution and accumulative volume distribution of pore size and the pore structures were analyzed. The results show that the total porosities decline with increase in ages and reduction in A/C ratio. The total porosities declines from 28% at 1d, to 15.8%~17.2% at 28d; the most probable pore size declines from 20nm at 1d to 5nm at 28d.At 28d, there is an increase in the magnitude of pore size between100nm and 5μm; the volume faction of smaller than 5μm is 40~50%; and the amount of pore size smaller than 5nm account for 6%.There are two peaks (5μm & 50μm) in the curves of pore distribution.

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Periodical:

Advanced Materials Research (Volumes 1004-1005)

Pages:

1589-1593

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.1589

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Online since:

August 2014

Authors:

Sheng Zhang, Xi Ling Zhou, Ke Ren Zheng*, You Jun Xie, Qiang Fu

Keywords:

Cumulative Volume Curves, Hardened Cement-Asphalt, Mercury Intrusion Porosimetry, Pore Size Distribution

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