【摘 要】
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An experimental investigation was conducted to study residual mechanical properties of Ultra-High-Strength concrete with different dosages of glassified mic
【机 构】
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Faculty of Civil Engineering, Beijing Jiaotong University, Beijing, China
【出 处】
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The 10th International Symposium on High Performance Concret
论文部分内容阅读
An experimental investigation was conducted to study residual mechanical properties of Ultra-High-Strength concrete with different dosages of glassified micro-bubble after exposure to high temperature.After exposure to different target temperatures (room temperature, 200 ℃, 400 ℃,600 ℃,800 ℃), residual mechanical properties (residual compressive strength, residual tensile splitting strength, residual fracture energy) of Ultra-High-Strength concrete under different conditions including 1 water-binder ratios (0.18), 3 different contents of glassified micro-bubble (0%, 40%, 60%) were all investigated.The effect of different dosage of glassified micro-bubble was studied on residual mechanical properties of Ultra-High-Strength concrete after exposure to high temperature.The results indicate that the variations of.different kinds of Ultra-High-Strength concrete with different dosage of glassified micro-bubble are basically the same.With the increase of temperature, the residual mechanical properties increase at first,then decrease.The residual mechanical properties decrease after exposure to high temperature of 800 ℃.
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