geosynthetic material Articles

  • Hybrid Geosynthetic Solution for Rail Track on Expansive Clay, Geo-Americas 2016 Conference Proceedings, Kief (2016)

    Challenge – Reducing Track Maintenance on Expansive Clay Areas of expansive weak clay subgrades invariably change as a result of seasonal changes in moisture content. For rail track in these areas, the resultant heaving and shrinking causes severe degradation of rail alignment, requiring extensive maintenance. One such area is northern Israel, where the Israel Railway Authority ...


    By PRS Geo-Technologies

  • Watch your Language! Geosynthetics vs Traditional Materials

    During GeoAmericas 2016, Dr. Neil Dixon’s sustainability keynote touched upon many topics for the future of geosynthetics. While sustainability drove most of the lecture, a few of his ideas simply approached how the field positioned itself in the marketplace. He suggested, for example, moving the field away from isolating language like “versus traditional materials.” ...


    By Nilex

  • Using Geosynthetics in Slope Stability

    The majority of slope failures within the geosynthetics industry can often be avoided with proper engineering and material selection. However, the factors that affect slope stability can be difficult to discern and measure. Soil thickness, seepage forces, seismic forces, gas uplift, geomembrane texturing, engineering and provision of reinforcing elements are only a few of the factors affecting ...


    By Agru America, Inc.

  • CBR Strength (Puncture) of Geosynthetics

    While there exist many types of mechanical tests for use on geosynthetics, most seem to be more suitable for one type of system or another. This paper focuses on a test which may have widespread applicability to assess the strength of all types of geosynthetics. It is the forcing of a 50-mm (2.0-in.) diameter plunger through a horizontally fixed geosynthetic of 150-mm (6.0-in.) diameter. Such ...


    By ASTM International

  • Designing With Geosynthetic Clay Liners

    In construction, preventing the penetration of liquids and gases is essential to maintaining the integrity of a structure. Often, containment is just as important, especially when dealing with chemical contaminants or other waste. When looking to stop the spread of contaminated liquids and gases, there are few tools as effective as geosynthetic clay liners (GCL). Read on to learn how to design ...


    By Agru America, Inc.

  • The Basics of Slope Stability Analysis for Geosynthetics

    Slope stability analysis is vital to preventing slope failures in a variety of engineering applications including landfill design, roads, dams and embankments, to name a few. Proper analysis anticipates both natural and manmade slopes and failure of foundations and retaining walls. This blog covers the necessity of slope stability analysis, how to conduct the analysis and the role of ...


    By Agru America, Inc.

  • Interest Growing in Mining Applications for Geosynthetics

    Some 40 percent of the geosynthetics manufactured today are used by the mining industry, according to one estimate, and there are predictions that figure will increase as the industry continues to adopt mining technologies that help improve efficiency and protect the environment. Jack Caldwell, an engineer at Robertson GeoConsultants, has gone as far as to say, “We believe that ...


    By Agru America, Inc.

  • Geosynthetics for a green appearance case study

    At the end of September, TenCate Geosynthetics North America introduced TenCate Miramesh SG. This is an open-mesh biaxial geotextile in which synthetic turf fibres have been integrated. It has been designed specifically to be a face wrap material for steepened slope applications and to provide an instant and permanent green appearance. The synthetic turf fibres provide an extra layer of UV ...

  • In-Plane Flow of Four Geosynthetics for Landfill Drainage

    The in-plane flow behavior of four geosynthetics, including three geonets and one geocomposite, for landfill drainage applications was investigated. Laboratory testing was performed to evaluate the effect of boundary material (cover material), hydraulic gradient, applied normal compressive stress, and time on the flow rate. The boundary materials investigated were a geomembrane, geotextile, sand, ...


    By ASTM International

  • What the Build America Bureau Means for Geosynthetics

    The Geosynthetic Materials Association anticipates higher demand for geosynthetics on the heels of the Fixing America’s Surface Transportation Act, or FAST act, and the recent addition of the Build America Bureau. The new group was created to support the $305 billion FAST Act, which provides long-term funding for U.S. infrastructure planning and ...


    By Agru America, Inc.

  • New lakes in Czech Republic with TenCate geosynthetics case study

    The landscape in the northwest of the Czech Republic is undergoing large-scale revitalization. Where once brown coal was extracted from open-cast mines, recreational facilities are now being built and seven lakes created. TenCate Geosynthetics is involved in their installation, providing geotextile materials and technical support. The realization of Lake Medard at Sokolov is presently in ...

  • Puraflex Technical Briefing: Permeation of Hydrocarbons through Geosynthetic Membranes

    The briefing gives an overview of the current industry standards for chemical resistance and what is meant by the term 'hydrocarbon resistant'.  The briefing also describes the research which has been carried out in order to develop this unique barrier technology which has unrivalled chemical resistance and most importantly, has permeation data which shows us how effective the material will ...

  • Geosynthetics and their impact on Mechanistic-Empirical Pavement Design Guide (MEPDG)

    Abstract The impact of geosynthetics in a pavement structure will skew the estimate of damage over time, due to pavement distresses if appropriate testing has not been conducted on them. This article speaks to how geosynthetics can be incorporated into the MEPDG to ascertain how a design will be affected due to load (traffic) and environmental (climate) stresses. It has been ...


    By Nilex

  • Cylindrical Expansion Test for Tensile Properties of Geotextiles

    This technical note describes a new apparatus and testing procedure to perform rapid quality control and assessment of the design parameters of geosynthetic materials. The cylindrical expansion test (CET) is based on the principles of the extension of a geosynthetic specimen wrapped around the surface of an expanding thin-wall cylinder. The parametric study conducted on two nonwoven polyolefin ...


    By ASTM International

  • TenCate Geotube in Korea awarded - case study

    In October 2010 TenCate Geosynthetics USA won an Award of Excellence in the 2010 International Achievement Award (IAA) for the Incheon Bridge project in South Korea, in which TenCate Geotube technology was used. The Incheon Bridge (October 2009) near the South Korean city of Incheon is a cable-stayed bridge. An artificial island had to be created to provide a construction platform for building ...

  • Bali’s first modern landfill design case study

    Bangli Regional Landfill in Indonesia’s Bali province is located about 60km outside of Denpasar, the provincial capital and home to more than 500,000 residents. The region hosts Ngurah Rai International Airport—the main entry point into Bali—and numerous tourist destinations along Bali’s popular white sands beaches. When the Indonesian central government approved ...


    By NAUE GmbH & Co.KG

  • Comparing nonreinforced and internally reinforced GCL

    Water is one of the most destructive forces on the planet, eroding everything from continents to human-made wonders. Water is also a vector by which contaminants spread from landfills and other waste reservoirs. Therefore, creating effective water seals has been a top concern in construction. For many years, factory-fabricated clay products have been the barrier of choice against water and other ...


    By Agru America, Inc.

  • Dam rehabilitation paper - Case Study

    Polymeric Cellular Confinement Systems, (CCS), are a class of composite material, developed during the past fifteen years, for use in areas of slope and channel protection, load support and gravity retaining structures. The key component of these systems is a type of geosynthetic known generically as a Geocell. These flexible, three-dimensional, open cell assemblies are expanded into position and ...


    By Presto Geosystems

  • Road Over Sensitive Groundwater Areas - Case Study

    When constructing or extending new roads, the responsible designers and contractors are increasingly faced with the task of preventing soil contamination. Therefore, measures for the protection of the groundwater are necessary in more and more cases. The corresponding requirements and specifications for such measurements are regulated in the "guide-line for constructional measurements of roads in ...


    By NAUE GmbH & Co.KG

  • Size Effects for Multi-Axial Tension Testing of HDPE and PVC Geomembranes

    Geosynthetics may be subjected to multi-axial stress states from plane strain loading, such as dragdown along lined slopes and from out-of-plane loading conditions imposed by localized subsidence beneath waste containment cover and liner systems. The multiaxial tension test is useful in evaluating the performance of geosynthetics subjected to multi-axial stress states. However, widespread ...


    By ASTM International

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