The enhancement of interface shear strength between two nonwoven geotextiles

April 1, 2006  |  Products

By Gregory N. Richardson and Pieter K. Scheer Introduction and problem statement Interfaces involving nonwoven to nonwoven geotextile surfaces are sometimes part of the design of landfill liner systems. This is most likely the case in a double-liner system where a geosynthetic clay liner (GCL) is of…
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Eight ways to achieve improved retaining-wall performance

April 1, 2006  |  Products

A refresher course for SRW success. By Michael R. Simac Segmental Retaining Wall (SRW) performance can be improved greatly by implementing good construction techniques. Since SRW construction started some 20 years ago, a number of good guidelines have proven to be at the core of a properly executed …
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Versavoid Modular Geovoid System allows for use and reuse of water

August 5, 2001  |  Products

The Versavoid Modular Geovoid System, a lightweight porous polypropylene structured cube about 50cm2, acts as a drainage system when placed on top of a trench or void lined with a geotextile. By plumbing a filtration unit into the system, stormwater can be passed into a storage tank and recycled for…
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Geotextiles

January 1, 1970  |  Products

These products are engineered to provide cost-effective solutions to meet specific design requirements for separation, reinforcement, filtration, drainage, and protection applications. Although engineers have developed numerous applications for geotextiles, there are five major functions: separa…
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Geogrids

January 1, 1970  |  Products

Geogrid products are designed for reinforcement and, characteristically, are integrally connected to elements separated by in-plane apertures. Geogrids form a distinct category of geosynthetics designed for reinforcement. These products are characterized by a relatively high tensile strength and a u…
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Geosynthetic clay liners (GCLs)

January 1, 1970  |  Products

Bonding clay to geosynthetic materials has created an economical, long-term solution for many applications. Geosynthetic clay liners (GCLs) are hydraulic barriers made of clay bonded to a single geosynthetic layer or to multiple geosynthetic layers. Because of its low permeability, swelling capacity…
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Drainage materials

January 1, 1970  |  Products

Geonets, sheet drains, edge drains, and prefabricated vertical drains are all designed to offer strong, performance-enhancing alternatives to traditional drainage systems. Geocomposite drainage systems are engineered to minimize costly, conventional graded-aggregate and/or perforated-pipe subsurface…
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Geocells

January 1, 1970  |  Products

Geocells are engineered for protection and stabilization applications. They are often used to help improve the performance of standard construction materials and erosion-control treatments. Geocell products are three-dimensional, expandable panels made from high-density polyethylene (HDPE), polyeste…
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Erosion control materials

January 1, 1970  |  Products

These products are designed to help solve erosion- and sediment-control problems and to provide long-term stabilization by establishing and maintaining vegetative cover. Erosion-control products give engineers ready solutions for one of the fastest-growing design niches. Many of these products work …
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What is GRS? (Geosynthetic-reinforced soil)

January 1, 1970  |  Products

The soil mass of GRS systems is reinforced in layers with a polymeric geosynthetic (e.g., geogrids or geotextiles), and the layered reinforcement is attached to facing elements that constitute the outer wall. Because the facing elements are commonly composed of articulated units that are not rigidly…
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