The product form is: there is bentonite powder or particles between the two layers of geotechnic cloths; they are pressed together through pins.
普通膨润土防水卷材的产品形式为，上下两层土工布中间夹膨润土粉或颗粒，经针压将三者复合到一起。
2
Based on the study of Geotechnic test data of loess and 50 more examples of loess landslides, this paper presents a new theory of space forecast for loess landslides.