Kimberlite gangue composite material and preparation method thereof

The invention provides a preparation method of a kimberlite gangue composite material, wherein the preparation method includes steps of (1), evenly mixing kimberlite gangue with fly ash under the environment temperature of 10 DEG C above, adding sodium silicate solution and stirring for about 1 minute; (2), adding sodium hydroxide water solution, stirring the solution for about 1 minute, and acquiring the kimberlite gangue composite material. The kimberlite gangue composite material solves the hidden trouble of landslip and dust pollution caused by stacking the kimberlite gangue; the building material products are applied, the cost is greatly reduced, and the kimberlite gangue composite material can replace the non-structural cement product; the preparation method is simple. Meanwhile, the preparation method is also applied to copper tailings, golden tailings, iron tailings, granite, quartz sand, red mud, sea sand and others. 本发明提种金伯利岩尾矿复合材料的制备方法，包括如下步骤：(1)在环境温度为10℃以上，将金伯利岩尾矿与粉煤灰混合均匀，加入硅酸钠水溶液，搅拌约1分钟；(2)加入氢氧化钠