If you are trying to stabilize dirt, it is important to choose a process that tests for key properties. A soil stabilization process begins with taking samples of the dirt to test its condition. Then, the recommended additive treats the earth. The results of the treatment are then tested. Finally, the dirt is stabilized by testing its effects on key earth properties.
Electro-osmosis
The electro-osmosis process is a method for soil stabilization. In this method, a small electric potential is applied across earth layers, creating a negative pore-water pressure. As the water flows from the anode to the cathode, ions exchange in the process.
In the end, the water films are discontinuous, and the dirt’s properties are changed. The electro-osmosis process is an efficient and unique geotechnical engineering method. It works by drawing the water containing hydration to a cathode, where it will be treated.
This treatment is permanent. The amount of electro-osmosis needed depends on the type of earth, its water content, pH, and the ionic type concentration in the pore-water. Because clay particles are negatively charged, electro-osmosis has a negative effect on the water surrounding them and can cause a variety of issues.
This process involves drilling rows of wells in the dirt to stabilize. The electrodes connect to a source of bipolar pulse current. These electrodes then plug into the wells. The measurement for electrical potential gradient is V/L or V/m. As a result of the success of using electro-osmosis for soil stabilization, interest in this process continues to increase.
However, this technique suffers from electrical efficiency, which improves with electrode polarity reversal, intermittent current, and geo-synthetic electrodes. When using electro-osmosis for dirt stabilization, it is possible to determine the permeability of earth.
Initially, the electro-osmosis permeability coefficient estimate was a constant value during treatment. Then, using the one-dimensional attenuation law, the coefficient changed according to treatment time. After the treatment, the permeability coefficients re-established the initial values.
Chemical Stabilization
The process of chemical balance of dirt involves the mixing of different chemicals to enhance the properties of the earth. The effectiveness of the balance method depends on the reaction between the chemical additives and particles. The process is ideal for improving the strength, workability, and durability.
Other benefits of chemical earth balance include reduced maintenance and life cycle costs for pavement. The process has a number of advantages, including reduced dusting requirements, improved compaction density, and controlled volume changes.
One of the most common advantages of this process is that it does not need water to achieve stability. Because chemical balance uses chemicals, less water is necessary for balance of static imbalance. Calcium chloride (www.cancer.gov/calcium-chloride) is a deliquescent, hygroscopic compound that reduces surface tension and vapor pressure.
Calcium chloride also lowers the freezing point of water. It also decreases the loss of strength of fine-grained soils, and facilitates compaction. Another advantage of this process is its speed. Compared to other methods, chemical balance does not require any special machinery.
The chemicals can be applied to the earth several times, depending on the level of moisture in the earth. However, the process can be more costly, recommended mostly for smaller areas. For this reason, chemical stabilization is a viable option for many projects. Balance using these methods requires testing.
Mechanical Stabilization
The mechanical balance process is the process of mixing various materials into the earth to enhance its stiffness and strength. Various types of soil use this method, carried out from a shallow depth to a deep level. A mixing machine mixes the balance material into the earth.
Before using this method, it is necessary to remove soils with high organic content and high compressibility. Another method involves the use of deep mixing machines to stabilize earth at depths of 1.5 meters. There are several advantages to using this method of the soil stabilization process. First, it eliminates the need for rock delivery and purchase, which can be costly and time-consuming. Secondly, it is much more efficient than geogrid balance.
A geogrid balance process only requires a single pass, making it the preferred option. Finally, all chemical balance methods need a curing time, which can add several days to the construction schedule. Earth balance has been around for centuries. The process involves modifying soil properties permanently, through chemical or physical means.
The mechanical balance method involves compressing and compaction to alter earth properties. By mixing existing earth with imported earth, mechanical energy applies to the soil to enrich it with properties that are more appropriate for a particular application. Aside from stabilizing earth, this technique is useful in road surfaces as it can even out balances for car tires.
