Experiment on the Mechanical Behavior of Ceramsite Concrete under Temperature-Load Coupling Field

Abstract:

Experiment on the mechanical behavior of ceramsite lightweight aggregate concrete (LWAC) after elevated temperatures was conducted in this paper. The ceramsite LWAC test blocks were first heated at five temperature levels, 200°C, 350°C, 500°C, 650°C and 800°C. The corresponding loading test was carried on after they were naturally cooled down. Changes of compressive strength, elastic modulus and load-deformation curve after different levels of high temperature were analyzed. The results indicate that, the reduction of ceramsite LWAC prism compressive strength is faster than that of cubic compressive strength. Compared with normal-density concrete (NC), whether for cubic or prism blocks, the residual compressive strength ratio of ceramsite LWAC is obviously larger than that of NC. The load-deformation curve of ceramsite LWAC with the elevated temperature is gradually flatter.

• Periodical: Applied Mechanics and Materials (Volumes 357-360)
• Pages: 817-820
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.357-360.817
• Online since: August 2013
• Authors: Pan Wang, Dong Li, Chao Wei Shen, Wen Ting Jiang, Jian Min Wang
• Keywords: Ceramsite Lightweight Aggregate Concrete, Compressive Strength, Elastic Modulus, High-Temperature, Load-Deformation Curve

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