Experimental Study of Compression and Carbonation in Concrete Subjected to Freeze-Thaw Environment

Abstract:

In order to research the changes of concrete properties in freeze-thaw environment, five concrete samples with water-cement ratio respectively equal to 0.60, 0.65, 0.70, 0.75 and 0.80 were tested in freeze-thaw environment according to GB/T50082-2009 concrete rapid freeze-thaw cycles test method. Five samples were carried out 0, 25, 50, 75, 100 times faster freeze-thaw cycles test. With the increasing number of freeze-thaw cycles, the concrete relative dynamic modulus of elasticity loss rises, the compressive strength drops, and the carbonation depth increases. The greater the water-cement ratio of concrete specimens with freeze-thaw cycles, the greater the degree of damage increases.

• Periodical: Advanced Materials Research (Volumes 887-888)
• Pages: 814-818
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.887-888.814
• Online since: February 2014
• Authors: Li Xue Wang*, Xiao Ting Shan, Yu Qing Zhang, Chun Sheng Li, Zai Xing Wang, Xiu Hong Wang
• Keywords: Carbonation, Compression, Freeze-Thaw Cycle, Relative Dynamic Modulus of Elasticity

References

[1] Yupu SONG, Huaishuai SHANG, Zhong ZHANG, et al. Investigation on Failure Criterion of Air-entrained Concrete Under Biaxial Loads After Freeze-thaw Cycles [J]. Engineering Mechanics, 2007, 24(6): 134-141. (In Chinese).

[2] Zuojun NING, Hengjing BA, Yingzi YANY. Experimental Study of Fracture Damage in Concrete Subjected to Freeze-thaw cycles [J]. Journal of Harbin Engineering University, 2009, 30(1): 27-32. (In Chinese).

[3] Likun QIN, Yupu SONG, Yujie WANG, et al. The Influence of Cycles of Freezing and Thawing on the Compressive Property of Concrete in Seawater [J]. Concrete, 2004, 29(1): 16-18. (In Chinese).

[4] Haiyan ZHANG, Guangyu LI, Wuqin YUAN. Experimental Study on Carbonization of Concrete [J]. China Rural Water and Hydropower, 2006, (8): 78-81. (In Chinese).