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Geotextile Fabrics – the oldest and most commonly used geosynthetic today – are engineered to provide cost-effective solutions to meet specific design requirements. And although there are at least 80 specific ‘applications’ for geotextiles that have been developed, a geotextile always performs at least one of five discrete ‘functions’:
Geogrids form a distinct category of geosynthetics designed for reinforcement. These products are characterized by a relatively high tensile strength and a uniformly distributed array of large apertures (openings between the longitudinal and transverse elements). The apertures allow soil particles on either side of the installed sheet to come into direct contact, thereby increasing the interaction between the geogrid, aggregate and some soils. Also, the apertures ensure vertical drainage of a reinforced free-draining aggregate/soil.
The geogrid elements vary in polymer type and cross-sectional dimensions. They can sometimes change shape and dimensions within their length. Geogrids are either integrally manufactured (punched and drawn sheets; or extruded), ultrasonically or adhesive bonded strips, or joined in a knitting or weaving process and then coated. Polymer types include polyethylene, polypropylene or high tenacity polyester that has been coated.
Can provide Geomembrane and Liners in a variety of physical, mechanical, and chemical resistant properties designed to meet the requirements of a wide range of applications (i.e. Products can be compounded for exposure to ultraviolet light, ozone, and microorganisms in soil). Different combinations of these properties exist in various geosynthetic lining materials to cover a wide spectrum of geotechnical applications and designs.
Liners/geomembranes are now commonly used in:
Drainage plays a critical role in the design and construction of below-grade applications. Without proper drainage, groundwater seepage may cause hydrostatic pressure and leakage, resulting in structural damage.
The DX series of drainage composites includes drain boards (also called wall/sheet drains), strip drains, and geonets. While all of the products in this series are used to direct the flow of water, each individual product is created for a specific application(s), some being horizontal and others vertical.
The FX-A/O Series of nonwoven polypropylene Asphalt Overlay fabrics are specially needle-punched and heat-set to provide an economic solution to extending the useful life of pavement overlays.
The A/O Series of Asphalt Overlay Fabrics are most frequently specified to perform at least one of the following functions: