Overview of Stabilization Technology
Principle of Soil Stabilization
A soil stabilizer is an additive added to soil that, upon mixing, triggers a series of physical and chemical reactions with the soil. These reaction improve the soil's physical and mechanical properties, enhance its engineering characteristics, reduce water sensitivity, and increase water stability, ultimately rendering the soil into a firm and long-lasting stabilized soil.
Technical advantages
The soil stabilizer offers a wide range of applications and stable performance. By using locally available materials, it saves transportation costs. Its convenient construction reduces environmental damage. The solidification time is relatively short, which lowers labor and time costs, making the overall project cost-effective.
Performance Characteristics
The stabilized soil treated with this agent exhibits good cementation, compressive strength, frost resistance, water stability, impermeability, and resistance to wet-dry cycles, among other desirable properties.
Application of Stabilization Technology
Application in Highway Engineering
During road construction, adding a certain proportion of soil stabilizer can produce high-quality semi-rigid pavement base material, which hardens and reinforces the subgrade. This approach can resolve weak foundation issues encountered in road construction and plays an important role in controlling highway settlement.
The subgrade mixed with soil stabilizer offers the advantages of good stability, high strength, and low shrinkage. This helps the entire pavement structure operate within the elastic range, which is of great significance for maintaining pavement performance and extending its service life.
The soil stabilizer also possesses strong resistance to wet‑dry cycles. Even when subjected to alternating wet and dry conditions due to climate changes, it can still maintain excellent stability.
Application in Slope Treatment Engineering
In recent years, various slope treatment technologies have been gradually developed, ranging from traditional methods such as vegetation slope protection, slope protection nets, stone masonry slope protection, sprayed anchor bolts, and retaining walls to ecological slope protection.
Among these methods, due to the widespread availability of materials such as concrete and stone, and also for aesthetic purposes, stone or concrete retaining walls are often used to reinforce slopes. By using sand as the raw material and adding soil stabilizer along with a small amount of cement, slope protection components of various shapes and sizes can be manufactured. These components can replace traditional stone or concrete, significantly reducing the cost of slope protection projects and offering broad prospects for application.
Application in Sludge Cleaning and Embankment Reinforcement Works
After being treated with stabilizer, the soil can form a stable mass with a certain strength and exhibits good water stability, remaining stable even after long‑term immersion in water. This is conducive to embankment stability and reduces soil erosion, thus offering broad application prospects in riverbank protection works.
For a long time, due to reduced water flow and velocity during dry seasons, a large amount of silt deposits in rivers, causing the riverbed to rise. When the rainy season arrives, this can lead to poor water flow and even severe flooding. The silt cleaning work generates a huge volume of silt. If this silt is not properly treated and utilized, it will occupy vast amounts of land and cause environmental pollution. To make full use of it, a certain proportion of soil stabilizer is mixed into the silt to produce engineering fill, which has been successfully applied in the construction and reinforcement of embankments. This method is simple in construction and suitable for wide promotion.