Performance Comparison between High Strength Concrete and Ordinary Concrete under Mixed Erosion and Freeze-Thaw Cycling

Abstract:

: Performance of high strength concrete and ordinary concrete under alternating action of mixed erosion and freeze-thaw cycling were compared. The erosion solution was mixed by weight of 3% sodium chloride and 5% sodium sulfate. Results showed that, after 200 freeze-thaw cycles, the effect of surface scaling of ordinary concrete was more significant than that of high strength concrete, and the mass loss rate of ordinary concrete was much higher; The relative dynamic modulus of elasticity of high strength concrete slightly increased by 2.99%, while that of ordinary concrete decreased more than 13%. Compressive strength and elastic modulus of high strength and ordinary concrete behaved almost in the same way in the first 50 freeze-thaw cycles, with the increase of freeze-thaw cycles in the following test, the compressive strength and elastic modulus of ordinary concrete showed larger reductions than these of high strength concrete. As the freeze-thaw cycles increased, the corresponding strain to the peak stress of high strength concrete decreased, but it increased for ordinary concrete.

• Periodical: Advanced Materials Research (Volumes 163-167)
• Pages: 1667-1672
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.1667
• Online since: December 2010
• Authors: Jian Zhang, Bo Diao, Yan Dong Li, Xiao Ning Zheng
• Keywords: Freeze-Thaw Cycle, High-Strength Concrete (HSC), Mixed Erosion, Ordinary Concrete, Performance Comparison

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