以煅烧铝土矿选尾矿、水玻璃为主要原料制备碱激发胶凝材料,研究了其在不同养护条件下的强度发展规律及耐热性能。结果表明:虽然提高养护温度可显著提高砂浆强度,但长时间高温养护会引起强度倒缩;封闭恒温潮湿空气养护可使砂浆强度稳定发展,但开放条件下养护因失水而使强度大幅度降低;在400～500℃的高温下灼烧1h,其强度没有明显下降。 Alkali-activated cementitious material was prepared from calcined bauxite tailing and water glass as the main raw materials, and its strength development and heat resistance under different curing conditions were studied. The results showed that although increasing the curing temperature could significantly increase the mortar strength, long time high temperature curing would cause the strength to shrink. Closed humidified air with constant temperature and humidity could make the mortar strength develop steadily. However, under the open condition, the curing strength was greatly reduced due to water loss ; At 400 ~ 500 ℃ high temperature burning 1h, the intensity did not significantly decreased.