In the "Guidelines for the specification of traffic areas", a set of standard construction details are given for specific types of roads depending on their intended usage and service life. By including reinforcement geosynthetic products in these standard construction details, a technically equivalent (or superior) design can be achieved by reducing the expensive mineral base course material thickness. If the subsoil of the intended road construction does not have sufficient bearing capacity, geosynthetic reinforcement can also be used in the stabilization of the subsoil.

Soil reinforcement

Secugrid^® geogrids are reinforcing geosynthetic products manufactured from high tensile strength extruded monolithic flat polymer bars with high strength welded junctions. Secugrid^® absorbs tensile forces induced into the soil and distributes the stresses through the high tensile strength bars. This transfer of forces takes place by two distinct modes; interlock of the granular soil into the grid apertures which physically restrains movement of the granular base course material, and frictional force transfer between the soil and the wide flat bars of Secugrid^®. By absorbing the tensile forces induced by traffic loading on the road surface, the loading is distributed over a larger base area, minimizing localized pressures on the subsoil. An important feature of Secugrid^® geogrids is the very high modulus, (i.e. they are able to function at their design tensile loading at very low elongation). The high modulus minimizes the deformation that can occur at the road surface. Secugrid^® also has a very low susceptibility to long term creep, ensuring the continued integrity of the road surface against deformation. Soil reinforcement with Secugrid^® can eliminate the need to remove and replace or chemically stabilize subsoils that do not have sufficient bearing capacity for the intended loading. Combigrid^® (a bonded composite of Secugrid^® and Secutex^® nonwoven geotextiles) can be used if the geosynthetic product is required to provide reinforcement functions as well as separationfilter stability between cover layer and subsoil. The Secugrid^® component of the composite product provides reinforcement while the Secutex^® nonwoven geotextile component provides separation and filter stability. The raw material components used to produce Secugrid^® and Combigrid^® geosynthetics are carefully selected to ensure that their full performance during entire service life is main-tained.

A solid foundation starts with Secugrid^® products from NAUE.