在固化的淤泥土最外层摊铺、碾压结束后，其表面还覆盖有保护层。该保护层是粘土、柴草或塑料膜。
After the outermost layer of solidified silt soil is paved and rolled, its surface is also covered with a protective layer. The protective layer is clay, firewood or plastic film.
在加入水泥和粉煤灰的同时，还可加入石膏。其中，每立方米的淤泥中，石膏的加入量为2～15kg。
When adding cement and fly ash, gypsum can also be added. Among them, the addition amount of gypsum per cubic meter of sludge is 2 ~ 15kg.
在加入水泥、粉煤灰和石膏的同时，还可加入超强吸水剂。其中每立方米淤泥中，超强吸水剂的加入量为0.3～1.5kg。所说超强吸水剂是淀粉系吸水剂、纤维素系吸水剂或合成系吸水剂中的任意一种。
When adding cement, fly ash and gypsum, super absorbent can also be added. The addition amount of super absorbent is 0.3 ~ 1.5kg per cubic meter of sludge. The super absorbent is any one of starch absorbent, cellulose absorbent or synthetic absorbent.
所说的淀粉系吸水剂是淀粉接枝丙烯酸、纤维素系吸水剂是纤维素接枝丙烯酸、合成系吸水剂是聚丙烯酸吸水树脂。
The starch water absorbent is starch grafted acrylic acid, the cellulose water absorbent is cellulose grafted acrylic acid, and the synthetic water absorbent is polyacrylic acid water absorbent resin.
采用上述方案，具有以下优点由于采用本发明的淤泥固化土施工方法，可将江河湖海中的疏浚淤泥用于道路铺设、堤坝修筑或低凹地填平，不仅解决了疏浚淤泥的处理难题，还可节约耕地、避免对环境造成污染。
Adopting the above scheme has the following advantages. Due to the sludge solidified soil construction method of the invention, the dredged sludge in rivers, lakes and seas can be used for road laying, dam construction or low-lying land filling, which not only solves the problem of dredging sludge treatment, but also saves cultivated land and avoids environmental pollution.