用碱活性矿渣、粉煤灰水泥制作的预置骨料混凝土的特 点

金 惠民, 郑 国山, 张 惠珠
韩国建筑与城市设计部

摘要

研究评估了以碱活性水泥灌浆料作为粘结剂制备的预置骨料混凝土的特性。本研究考虑了各种矿渣和粉煤灰 的二元混合物，不以细骨料作为填充材料，同时考虑了不同的溶液与固体的比例。本文研究了新鲜和硬化的灌浆料以 及硬化的预置混凝土的性能，以及预置混凝土的抗压强度、超声脉冲速度、密度、吸水率和总空隙。结果表明，碱活 性水泥灌浆料比传统水泥灌浆料具有更好的流动性特征和抗压强度。因此，预置骨料混凝土的机械性能得到明显改善。 与吸水率和孔隙率有关的结果显示，碱活性预置骨料混凝土的抗渗水能力更强。另外，本文讨论了基于超声波脉冲速 度值的填充能力，以评论碱活性水泥灌浆的包裹能力。

关键词

碱活性水泥；预置混凝土；填充能力

参考

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