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Journal of Zhejiang University SCIENCE A 2009 Vol.10 No.1 P.17~21

10.1631/jzus.A0820108


Influence of freezing rate on cryo-damage of cementitious material


Author(s):  Ke-fei LI, Qiang ZENG

Affiliation(s):  Civil Engineering Department, Tsinghua University, Beijing 100084, China

Corresponding email(s):   likefei@tsinghua.edu.cn

Key Words:  Freezing rate, Deformation, Crystallization pressure, Damage


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.

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author="Ke-fei LI, Qiang ZENG",
journal="Journal of Zhejiang University Science A",
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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
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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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] ASTM (American Society for Testing and Materials) Standard C666-03, 2003. Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing. ASTM International, West Conshohocken, USA.

[2] Cai, H., Liu, X.L., 1998. Freeze-thaw durability of concrete: ice formation process in pores. Cement and Concrete Research, 28(9):1281-1287.

[3] CCES (Chinese Civil Engineering Society), 2005. Guide to Durability Design and Construction of Concrete Structures (CCES01-2004). Chinese Building Industrial Publishing, Beijing, China (in Chinese).

[4] Coussy, O., 2005. Poromechanics of freezing materials. Journal of the Mechanics and Physics of Solids, 53(8):1689-1718.

[5] Coussy, O., Fen-Chong, T., 2005. Crystallization, pore relaxation and micro-cryosuction in cohesive porous materials. Comptes Rendus Mécanique, 333(6):507-512.

[6] Fagerlund, G., 1975. Significance of the Critical Degrees of Saturation at Freezing of Porous and Brittle Materials. ACI Publication SP-47, p.13-65.

[7] Fagerlund, G., 1997. Internal frost attack-state of the art. In: Setzer, M.J., Auberg, R. (Eds.), Frost Resistance of Concrete, RILEM Proceedings 34, E&FN Spon, London, UK, p.321-338.

[8] Powers, T.C., 1949. The air requirement of frost-resistant concrete. Highway Research Board Proceedings, 33(29):184-211.

[9] Scherer, G.W., 1999. Crystallization in pores. Cement and Concrete Research, 29(8):1347-1358.

[10] Setzer, M.J., 2001. Micro-ice-lens formation in porous solid. Journal of Colloid and Interface Science, 243(1):193-201.

[11] Setzer, M.J., Heine, P., Kasparek, S., Palecki, S., Auberg, R., Feldrappe, V., Siebel, E., 2004. Test methods of frost resistance of concrete CIF-Test: Capillary suction, internal damage and freeze thaw test—Reference method and alternative methods A and B. Materials and Structures, 37(274):743-753.

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