Proceedings of the 2016 International Conference on Architectural Engineering and Civil Engineering

Effect of the Particle Size Distribution of fly Ash on the Pore Structure of Low-temperature Concrete

Authors
Jun LIU, Xianzhong QIU, Yahui ZHANG
Corresponding Author
Jun LIU
Available Online December 2016.
DOI
10.2991/aece-16.2017.2How to use a DOI?
Keywords
low temperature; fly ash; particle size distribution; pore structure
Abstract

In order to explore the effect of the particle size distribution of fly ash on the pore structure of low-temperature concrete, the fly ash was prepared with different particle size distribution. Under low temperature condition, the porosity and pore size distribution of fly ash blended cement mortar curing for 7days were tested by mercury intrusion method and analyz the effect of particle size distribution of fly ash on the pore size distribution and porosity of cement were also analyzed. Research shows that: at the same stage and the same temperature, with the decreasing of the particle size of the fly ash, the porosity of cement pastes decreases gradually. At the same time the more harmful hole (>200nm) and harmful hole (50-200nm) in cement stone gradually decrease, while the harmless hole (<20nm) and the less harmful hole (<50nm) gradually increase. The pore structure of cement stone is effectively improved, of which the corresponding macro performance is improved obviously.

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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Volume Title
Proceedings of the 2016 International Conference on Architectural Engineering and Civil Engineering
Series
Advances in Engineering Research
Publication Date
December 2016
ISBN
10.2991/aece-16.2017.2
ISSN
2352-5401
DOI
10.2991/aece-16.2017.2How to use a DOI?
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/).

Cite this article

TY  - CONF
AU  - Jun LIU
AU  - Xianzhong QIU
AU  - Yahui ZHANG
PY  - 2016/12
DA  - 2016/12
TI  - Effect of the Particle Size Distribution of fly Ash on the Pore Structure of Low-temperature Concrete
BT  - Proceedings of the 2016 International Conference on Architectural Engineering and Civil Engineering
PB  - Atlantis Press
SP  - 5
EP  - 8
SN  - 2352-5401
UR  - https://doi.org/10.2991/aece-16.2017.2
DO  - 10.2991/aece-16.2017.2
ID  - LIU2016/12
ER  -