Concrete Floor with DuPont Typar: In geotextile applications, separation is defined as: “The preventing from intermixing of adjacent dissimilar soils and/or fill materials by the use of a geotextile or a geotextile-related product”.
The main application areas of a geotextile used as a separator are in road and railway projects and one of the concrete flooring with DuPont Typar. The use of the geotextile preserves and improves the integrity and function of the different materials. Two mechanisms occur when an aggregate base is laid over a soft subsoil and a vertical load is applied:
Concrete Floor with DuPont Typar: Firstly, the geotextile prevents the loss of aggregate into the soft subgrade. An engineering adage describes this very well.
Secondly, the contamination of the aggregate base by the subgrade soil is prevented and a reduction of the bearing capacity avoided. The migration of fine soil particles into the clean aggregate occurs especially under dynamic loading and can be
described as a “pumping effect”. The fines act as a lubricant between the coarse aggregate particles and can so substantially
reduce the shear strength of the aggregate.
Also, an uncontaminated aggregate will continue to effectively perform in its drainage function as well as maintain a higher
resistance to frost-heave effects.
Use of Geotextile: https://tribune.com.pk/letter/583071/use-of-geotextiles