摘   要：概述了赤泥的物理性质、化学组成和矿物组成，研究了赤泥在混凝土中的应用。研究表明，赤泥作为矿物掺合料，当掺量为20%时，可以改善赤泥-水泥体系的抗折强度，又不会对抗压强度造成过大损失；在水泥用量相同时，双掺赤泥和粉煤灰体系的强度要高于单掺赤泥或粉煤灰体系的强度；碱激发剂有利于双掺体系强度的增长。

Abstract：The physical properties, chemical components and mineral composition of red mud are summarized, and the application of red mud in the concrete is studied. The study indicates that red mud as a kind of mineral admixtures can improve the flexural strength of red mud-cement system and will not have a significant impact on the compressive strength when content of red mud is 20%; the strength of red mud-ash-cement system is generally higher than that of red mud-cement system and fly ash-cement system under the same amount of cement. The alkaline activator can improve the strength of red mud-fly ash-cement system.