天然废物稳定剂改善膨胀土研究进展

Research Progress of Expansive Soil Improved by Natural Waste Stabilizer

摘要: 膨胀土壤由于土壤中亲水性较强而与水接触时会膨胀，水分蒸发时会收缩，这些土壤在建筑、农业活动中会带来较大的危害。本文综述了使用成本低廉的天然固化剂对土壤进行固化结果，结果表明，使用石灰、稻壳灰–石灰、稻糠灰–粉煤灰、黄麻等天然物质对于膨胀土壤固化作用具有良好的效果，此外，稻壳灰、稻糠灰、废弃黄麻纤维等多为废弃物，因此也为废物资源化利用提供了良好的思路。

Abstract: Due to the strong hydrophilicity in the soil, expansive soil will expand when it comes into contact with water, and contract when water evaporates, which will bring great harm to construction and agricultural activities. This paper summarizes the results of soil solidification with low-cost natural solidifying agents. The results show that lime, rice husk ash lime, rice bran ash fly ash, jute and other natural substances have good effect on the solidification of expansive soil. In addition, rice husk ash, rice bran ash, jute fiber and other waste materials are mostly wastes. Therefore, it also provides a good idea for the utilization of waste resources.