No matter the type of construction you are planning, you need to ensure the ground is stable enough to withstand the weight. If the soil is not stable, the building could eventually collapse. To prevent this from happening, you can use soil grouting to increase the bearing capacity and stabilize the soil. Before you get started, here are three types of grouting techniques you should learn about.
Permeation Grouting Technique
With the permeation grouting technique, a thin, liquid grout is injected into the soil using high-pressure jets. The liquid then fills in air pockets in the soil. This is important, as these air pockets are the main cause of unstable soil. Once the grout cures it creates a solid mass, causing the soil to become much more stable.
This type of grouting technique can also be used for underwater structures, such as when building a bridge, or to prepare the ground before tunneling takes place.
Jet Grouting Technique
The jet grouting technique involves using high-pressure jets to inject fluid, which is generally made of concrete and water, into the soil. Once injected the fluid erodes, cuts, replaces, and mixes the existing soil to create stable cement columns. Next, a special slurry is injected into the soil to fill holes and voids. This slurry is a mixture of water, pigment, and a cement paste. This results in a gel-like cement. Once injected, the cement hardens under the ground, creating a soil base that is strong and stable.
Jet grouting can also be used to stabilize existing buildings and other structures. For example, if a building is built on an incline, jet grouting can be used to support the building by installing barriers.
Displacement Compaction Grouting Technique
The displacement compaction grouting technique involves injecting a thick liquid, made mostly of cement, small fragments, and water, into the ground. The liquid does not permeate the current soil, however. Instead, as the liquid hardens, it expands, which moves the soil and causes the soil to densify. This will prevent new construction from excessive settlement in the future.
Displacement compaction grouting can also be used to stabilize existing structures that have excessive settlement.
Talk with a company that can provide soil grouting for you. They can go over these methods in much more detail. The company can also go over other grouting techniques that are often used in new construction and which may interest you.