CLC number: TB3; TU5
On-line Access:
Received: 2008-02-18
Revision Accepted: 2008-05-15
Crosschecked: 2008-10-29
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Ke-fei LI, Qiang ZENG. Influence of freezing rate on cryo-damage of cementitious material[J]. Journal of Zhejiang University Science A, 2009, 10(1): 17-21.
@article{title="Influence of freezing rate on cryo-damage of cementitious material",
author="Ke-fei LI, Qiang ZENG",
journal="Journal of Zhejiang University Science A",
volume="10",
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pages="17-21",
year="2009",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0820108"
}
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%DOI 10.1631/jzus.A0820108
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T1 - Influence of freezing rate on cryo-damage of cementitious material
A1 - Ke-fei LI
A1 - Qiang ZENG
J0 - Journal of Zhejiang University Science A
VL - 10
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SP - 17
EP - 21
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0820108
Abstract: We report an experimental investigation on the impact of the freezing rate on the cryo-deformation and cryo-damage of cementitious materials. Saturated, dried and air-entrained mortar specimens are subjected to laboratory freeze-thaw cycles under three freezing rates without moisture exchange with the environment. In addition to basic mechanical properties and pore distribution, the measurement is also effectuated for freezing expansion, residual deformation of the specimens in each cycle. From the results it is observed that a high freezing rate does augment the freezing expansion of material while the cryo-damage is more important for a low freezing rate. Accordingly, both the freezing rate and freezing duration should be taken into account for the cyro-damage extent of cementitious materials.
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