Time has proven the cost effectiveness of geotextiles and their ability to improve constructability on poor subgrades. Geotextiles can perform a variety of functions that include separation, stabilization, and drainage. Geotextiles are available in woven and nonwoven. Installation survivability is a key component in the selection process of geotextiles.
It has been said that “roads wear out from the top but fall apart from the bottom.” Geogrids provide a mechanically stabilized layer within or under the aggregate base thereby maintaining structural capacity and improving the long-term performance of the pavement system. Geogrids are available in Biaxial, Triaxial, and Uniaxial. Benefits of Geogrids are they lower total installation costs due to reduced aggregate base layer thickness and they reduced costs associated with long-term maintenance needs.
Cellular Confinement is a three-dimensional cellular structure resembling a honeycomb configuration that controls shearing and lateral and vertical movement of the infill material. Cellular Confinement systems are highly effective economical solutions to unacceptable road, parking, and yard surface problems. They provide a stiff base with high flexural strength and acts as a semi-rigid slab. It can minimize the impact of differential and overall settlement and may allow for use of poor-quality fills in place of more costly imported material. With a permeable infill, cellular confinement reduces stormwater runoff and can also act as an on-site retention/detention system. Applications include: access roads, sub-ballast structures, trails, boat ramps, low water, crossings, and drivable vegetated surfaces.