Experimental Research on the Thermal Damage of Concrete

Abstract:

In order to investigate the effect of temperature (from normal temperature to 850°C) coursed by fire on the strength damage of concrete, thermal compression tests for concrete specimens named C35 have been performed under different temperature conditions. Emphasis is laid on the relationship between temperature and thermal damage strength; and the relevant formula is proposed in this paper. The regularity and mechanism of thermal damage evolution in concrete on strength under high temperature are analyzed. Combined the result of tests with the residual strength thermal damage model, we obtain the specific damage variable value D under different temperatures. Finally, we compare the fitting formula curve to relevant reference; there are some important conclusions which can be partly applied to fire design of concrete structure.

• Periodical: Applied Mechanics and Materials (Volumes 351-352)
• Pages: 460-466
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.351-352.460
• Online since: August 2013
• Authors: Chao Chen, Ying She Luo, Song Hua Tang, Xuan Zhang
• Keywords: Compressive Strength, Concrete, Experimental Research, Residual Strength, Thermal Damage

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