掺入竹灰的粉煤灰地聚合物混凝土在高温下的性能

李 贤民, 阿兹 林·, 诺哈 萨娜, 林 汉升
韩国建筑工程系

摘要

本文介绍了掺入竹灰的粉煤灰地聚合物混凝土在所需温度（200℃ ~800℃）下的实验结果。本文研究了不同
量的竹灰，并将粉煤灰地聚合物混凝土作为对照样品，用氢氧化钠和硅酸钠溶液合成了地聚合物，测定了超声脉冲
速度，重量损失和残余抗压强度，并使用两种不同的冷却方法（即风冷（AC）和水冷（WC）状态）测试所有样品。
这些测试的结果表明，在粉煤灰中加入 5%的竹灰，与对照样品相比，在 800℃时，地聚合物在AC和WC中残留强度
分别提高了 5MPa（53%）和 5.65MPa（66%），并且分别提高了 940m/s（76%）和 727m/s（53%）。因此，当竹灰面临
高温时，它可以成为地聚合物混凝土的替代品之一。

关键词

粉煤灰；竹灰；补充材料；土聚合物混凝土；高温

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