EN 13249

Characteristics required for use in the construction of roads and other trafficked areas.

The design of a road is basically conditioning - in addition to the structural assessment - by its resistance to dynamic loads . This type of cyclic phenomena define the durability of the floor itself. This is a function of the limit of exercise, which for a paving can be defined as the time horizon in which they occur cracks or an excess of deformations occur; all these phenomena depend on the nature of the embankment. The research in the field of road embankments tend therefore to analyze the behavior under the effect of repeated loads, that is in conditions similar to those of exercise, in order to design the structure considering the initial construction costs and the maintenance. It is evident that at a lower cost and low initial investment correspond to a greater burden of maintenance and greater discomfort for users. In the design phase, normally the engineers act both on the composition of the layers of the pavement, and foundation materials used, but you can also choose to add elements, such as geotextile Hipertex® , able to perform the function of separation and drainage. Doing this is possible to improve the overall bearing capacity, reducing the permanent deformation and retards of the cracks development.

EN 13250

Characteristics required for use in the construction of railways

As for the roads, the problem of global instability of railway embankments constructed on medium and low bearing capacity soil, can be solved by placing an Hipertex® geotextile on the foundation of the series Hipertex® made of very tough polypropylene.
This has the function of geosynthetic separator between soils of different quality and in some cases can compensate the insufficient shear strength of the soil by absorbing the tensile stresses generated along the sliding surfaces and transferring them to the stable part of the embankment.

EN 13252

Characteristics required for use in drainage systems.

EN ISO standards define the filtration as the process that is used to retain the particles of the ground subject to hydrodynamic forces and allow the passage of fluids within the geotextile". The opening characteristic of the pores of Hipertex® is designed precisely to retain the particles and allow free movement of the water. Without this condition, the migration of the soil could reduce the bearing capacity of the construction. Hipertex® has replaced the classic gravel filters drainage into dewatering trenches, along the river banks, in the reservoirs, foundation walls, and athletic facilities. Our articles are designed to allow liquids to pass in the draining systems as in the micropore tubes and at the same time to retain the finer particles while avoiding their migration into the drainage."