Determination of Pore Structure in Hardened Concrete by Mercury Intrusion and Vacuum Saturated Absorption

DOI

10.2991/aece-16.2017.51How to use a DOI?

Keywords

mercury intrusion; vacuum saturated absorption; porosity; pore structure

Abstract

Hardened concrete is a porous heterogeneous material. In this paper, pore structure of hardened concrete is determined by mercury intrusion and vacuum saturated absorption, the feasibility of these two methods is analyzed, and the linear correlation between the results detected by these two methods is created. Effects of curing ages, water cement ratio, and air-entraining agent on the porosity and pore size distribution of hardened concrete are analyzed. The results show that: 1) porosity measured by mercury intrusion can be converted into the results detected by vacuum saturated absorption with more than 90% accuracy. 2) porosity decreases as the curing age increases, and the proportion of large aperture and total pore volume also gradually reduces.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yue LI
AU  - Hong LI
AU  - Wanguo DONG
PY  - 2016/12
DA  - 2016/12
TI  - Determination of Pore Structure in Hardened Concrete by Mercury Intrusion and Vacuum Saturated Absorption
BT  - Proceedings of the 2016 International Conference on Architectural Engineering and Civil Engineering
PB  - Atlantis Press
SP  - 231
EP  - 235
SN  - 2352-5401
UR  - https://doi.org/10.2991/aece-16.2017.51
DO  - 10.2991/aece-16.2017.51
ID  - LI2016/12
ER  -