Dynamic Compressive Behavior of Concrete at High Temperatures

Abstract:

For investigating the effect of temperature on the dynamic properties of concrete material, tests for cylindrical concrete specimens at 23°C ~ 800°C were carried out by using Split Hopkinson Pressure Bar (SHPB) apparatus, and the strain rates ranged from 30/s to 220/s. Effects of temperature and strain-rate on the dynamic behavior of concrete were analyzed. The results show that: above 4000C, the dynamic compressive strength of concrete decreases with increasing temperature, and the enhancements of strain-rates on the compressive strength of concrete depend significantly on temperatures. Moreover, both strain-rate and temperature can enhance the peak strain of concrete.

• Periodical: Advanced Materials Research (Volumes 217-218)
• Pages: 1811-1816
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.217-218.1811
• Online since: March 2011
• Authors: Chuan Xiong Liu, Yu Long Li, Bing Hou, Wei Guo Guo, Jin Long Zou
• Keywords: Compressive Strength, Concrete, High-Temperature, Split Hopkinson Pressure Bar (SHPB), Strain Rate

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