Doing The Right Way

Methods and Materials for Soil Stabilization

Excavation accidents which kill construction workers is due to poorly stabilized soil. The only way to prevent such accidents is to stabilize the soil in the worksite so that when machines operated on them, they don’t cave-in.

Here are some of the materials and methods that can help stabilize the soil in a construction site.

First, here are the different stabilization materials.

You use slaked lime in highly plastic or clay-like soil. Strengthening and stabilization of the soil happens when slaked lime is added to it. Since water is removed from the soil, it becomes more compact.

Cement is a popular stabilizing material for soil. It can be used in different kinds of soil. Stabilization is improved if you add lime, sodium sulfate, or fly ash to cement.

Bituminous materials such as asphalt and tar can give coherence to the soil which reduces the absorption of water and improves stability. These will help prevent soil erosion.

You can add chemicals to the soil to improve stability. The chemicals used include calcium chloride, sodium chloride, and sodium silicate. Using chemicals can help compact the soil to stabilize it. They help increase the retention of water of the soil so that there is better sticking of particles together.

Fabrics or geotextiles can be used in building up of the soil. There are different kinds of porous geotextiles and it will depend on n the type of soil to determine the best option.

EnviroGrid made by Geo Products is a good example of geotextile. These cells which are heavy-duty prevent the filler material to have lateral movement. Because of their excellent drainage, they can be used in wet areas.

Below are some of the soil stabilization methods that can be used.

Mixing in the stabilizing material is the most common method for soil stabilization. It is important that the correct percentage of additive is mixed based on the how much of soil there is.

Another concern is soil depth. The job can only be done if the soil has enough depth. It is important to have a deeper mixture of stabilizing materials if the earth is loose.

Another method for soil stabilization is grouting which is a more expensive option. If the soil does not allow material mixing, then grouting should be used. Stabilizers are injected into the soil where it permeates and mixes to make the soil stronger and more compacted.

Electrical stabilization is another method of soil stabilization which is very expensive. Clay-like soil can use the method of electrical stabilization. In this method, you insert metal electrodes into the earth. Water moves to the electrodes you run current through them. Water is then removed and the soil compacts. Construction vehicle will then work on a more sturdy foundation.

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