In the past, a soil stabiliser resembled road recycler, but today even though fall under soil stabilizer equipment category, are very different. The road recycler is a machine that blends cement/lime and water with the pavement on-site. The material is not being recycled and the road recycler throws the material on the side of the road. The road recycler is used for blending asphalt road with a binder in a single pass.
Unlike the road recycler, the soil stabilizer is used for mixing the existing pavement with spread lime on the surface. It features a metal drum consisted of blades and paddles and has a constant water supply that comes through a big pipe located at the front. The soil stabiliser is used for blending soil, water and binder (usually cement and lime) in its mixing chamber. However, it cannot be used to cut very thick or hard asphalts. The use of soil stabilizer equipment is very beneficial because it reduces movement, thus eliminating the need for additional support for fill materials when building.
Modern soil stabilizer equipment is more powerful, quicker and is not as expensive as it used to be. A soil stabiliser can mix a weaker concrete and increase its load-bearing capacity. Similar to concrete mixers, except the process occurs on the ground. This is one of the three ways to improve a soil. The others are usually preferred to control dust by eliminating or preventing it. Also, there is a waterproofing soil stabiliser that improves the existing condition and strength of the soil by preventing a contact with water.
A soil stabilizer is being injected into soil with a pump which features medium pressure. Some projects though, may require the use of high-pressure pumps to inject the stabilizers. The injection depth should be about 3 meters, while the maximum injection depth is about 12 meters. When the soil to be stabilized is stiff, it is suggested to pre-drill and then inject the soil stabiliser into the soil. This process is achieved with inflatable packers, which plug the drilled holes in the ground. The pressure that the pump creates allows soil stabiliser to penetrate the surface. Once the process is complete, the surface is ready for a construction structure or pavement.
