Lime is utilized to treat soil in order to permanently improve its bearing capacity through a pozzolanic reaction. Stabilization via lime treatment is an economical and effective alternative to quarry aggregates to create subgrade layers for roads, railways, airport runways, harbor areas designated for materials storage, service areas and parking lots.
A pozzolanic reaction produces calcium silicate hydrates and calcium aluminate hydrates since the calcium in the lime reacts with the aluminates and silicates contained in the clay. The full-term pozzolanic reaction continues over an extended period of time, even decades, as long as lime is present and pH values remain very high.
As a result, lime stabilization strengthens the soil’s bearing capacity, which increases over time, but also achieves the desired value in just a few days.
For the pozzolanic reaction and lime stabilization to give the best results, laying and mixing processes must be carried out according to defined procedures and equipment must guarantee perfect mixing and compaction. Specifically, it is necessary to analyze the composition of the soil and establish the percentage of lime required to obtain optimum results.
L2 Lillini benefits from the skill and professionalism of the company’s technicians and operators as well as advanced machinery and equipment, ensuring that the stabilization process is executed in optimum conditions regardless of project type.
Lime stabilization offers a range of advantages that makes it an ideal solution for the construction of quality infrastructure:
Advantages and benefits of lime stabilization
- it increases the elastic module of the soil (in some cases by 10+ times)
- it increases shear strength (in some cases by 20+ times)
- it imparts high strength to the treated soil even when submitted to high static and dynamic loads over a period of time. It has the capacity to repair itself if damaged
- it has a high resistance to thermal variations and adverse weather conditions