clay liner Articles

  • Assessing Frost Damage in Compacted Clay Liners

    Methods used to assess frost damage (here defined as a large increase in hydraulic conductivity) in compacted clay liners are reviewed and evaluated using data collected from two test pads that were instrumented and then exposed to winter weather. The methods include comparisons of measurements of either water content and dry unit weight or hydraulic conductivity made before and after winter ...


    By ASTM International

  • Pollution level detection in dump clay liners by hyperspectral imaging

    Landfill is the most common and cost–effective method of waste disposal, with collection and transportation accounting for 75% of the total cost. A key point in waste disposal is the picking up and the drainage of percolation fluids to limit the risk of groundwater contamination. Aim of this study was to evaluate the possibility to develop fast and reliable methods to perform an in situ ...


    By Inderscience Publishers

  • Hydraulic conductivity of compacted clay liners permeated with inorganic salt solutions

    Due to their low permeability, geosynthetic clay liners (GCLs) and compacted clay liners (CCLs) are the main materials used in waste disposal landfills. The hydraulic conductivity of GCLs and CCLs is closely related to the chemistry of the permeant fluid. In this study, the effect on the hydraulic conductivity of clays of five different inorganic salt solutions as permeant fluid was ...


    By SAGE Publications

  • GCL serves as cost-effective, time saving alternative to compacted clay liner in mine drainage settlement pond

    PROJECT: CONSOL Bailey Mine Tailings Pond LOCATION: West Finley, Pennsylvania PRODUCTS: BENTOMAT® SDN BACKGROUND: Bailey Mine, located in Southwestern Pennsylvania and owned by parent company CONSOL Energy Inc., supplies bituminous coal used in the generation of electricity. At the site, coal laden sediment is pumped to ...


    By CETCO

  • Assessment of microsilica as a value–added material for municipal solid waste clay liner system

    This study was carried out to provide landfill clay liner soil along with admixture microsilica in different proportions. The physico–chemical characteristics were carried out to characterise the selected liners. The optimum conditions vis., time of adsorption, adsorbent dosage and pH were studied for the liners. The optimum pH values for COD removals are determined for clay soil, mix 1 : 20, mix ...


    By Inderscience Publishers

  • Landfill Liners Vary by Application

    It was in 1991 that the Environmental Protection Agency promulgated its Criteria for Municipal Waste Landfills that set location restrictions, design and operating standards, groundwater monitoring requirements, corrective actions, closure requirements, and more for landfills. It was these rules that mandated that landfills be lined on the sides and bottom before waste is deposited and capped on ...


    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.

  • Effect of Clod Size on Hydraulic Conductivity of Compacted Clay

    A study has been conducted to identify the causes for field-measured values of hydraulic conductivity of clay liners being typically two orders of magnitude greater than laboratory-measured values. It has been found through laboratory testing on large specimens that the size and gradation of clods and clumps of clay, prior to compaction, can significantly affect the measured hydraulic ...


    By ASTM International

  • Differential Flow Patterns Through Compacted Clays

    The determination of the hydraulic conductivity of compacted clays is vital when the clay is to be used as a liner for contaminant of hazardous waste. Therefore different types of permeameters were used and modified to investigate the homogeneity of a compacted specimens.Flexible wall and fixed wall permeameters were modified using multiple ring bases to determine the magnitude of differential ...


    By ASTM International

  • Low-permeability liner solution for coal-ash by-products

    PROJECT: TVA Kingston Gypsum Pond Expansion LOCATION: Harriman, Tennessee PRODUCTS: BENTOMAT® 600CL BENTOMAT® CL EASY ROLLER™ Deployment System BACKGROUND: As part of its emissions control at the Kingston Fossil Plant, flue gas desulfurization is performed, which creates as a by-product a synthetic ...


    By CETCO

  • Field Hydraulic Conductivity Tests for Compacted Soil Liners

    Field hydraulic conductivity tests are required to determine the in situ hydraulic conductivity of compacted clay soils used in the liners for hazardous waste management facilities. The test must be capable of measuring hydraulic conductivities of 1 × 10-9 m/s or less, and the values obtained must be representative of the overall soil liner. Few of the methods available are capable of both ...


    By ASTM International

  • Performance assessment of deformation behaviour of landfill barriers at the onset of differential settlement

    The present study focuses on the performance of various impervious barriers of cover systems subjected to differential settlements. Various impervious barriers, namely Compacted Clay Liner (CCL), Geosynthetic Clay Liner (GCL) and Fibre Reinforced Clay Liner (FRCL) were subjected to differential settlements artificially in a centrifuge using hydraulic trap-door system. Distinct delay in water ...


    By Inderscience Publishers

  • Experience with GCLs used as a conductive layer in geomembrane leak-location surveys

    Engineers, installers, regulators, and owners are starting to rely on geomembrane leak-location surveys as part of the construction quality assurance for landfills. The various methods are described in ASTM Standard D 6747.' Standard procedures for conducting leak-location surveys of geomembranes covered with earth materials are described in ASTM Standard D 7007.2 Figure 1 shows the ...

  • Tyre aggregate applications in geotechnical and geoenvironmental engineering

    A Tyre Aggregate (TA) is made from scrap/waste rubber tyres. Four types of tyre aggregates are classified, namely the coarse-grained, fine-grained, random and composite tyre aggregates. Applications of these tyre aggregates are varied, but they are often used as geomaterial fills and highway-pavement components. More recently, TA has found application in geoenvironmental engineering. This paper ...


    By Inderscience Publishers

  • 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

  • First use of a GCL in a copper heap leach pad

    PROJECT: Carlota Copper Mine Heap Leach Pad LOCATION: Globe Miami, AZ PRODUCTS: BENTOMAT® DN BACKGROUND: The Carlota Copper mine is an open-pit copper mine located approximately six miles west of Miami, Arizona. The site produces LME grade copper cathode through the process of heap leaching, in which a chemical solution ...


    By CETCO

  • Case Study - Sinkhole: Leaking Retention Pond

    Scan for liner leaks in retention pond Objective:  Map the extent of a sink hole and locate zones where water is leaking from a pond Date:  January 20, 2015 Site: Retention pond and sink hole near Lenoir City, Tennessee, USA Instrument:  SuperStingR8 with 112 total electrodes arranged in a 4x28 3D grid with 16x8ft spacing ...


    By Advanced Geosciences, Inc.

  • 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

  • Federal motorway A6 Mannheim-Heilbronn case study

    Stable RiStWag -construction guidelines for roadways in water preservation areas Included in the A6 federal motorway construction project lot Mannheim – Heilbronn/Weinsberg, AS Bad Rappenau – AS Neckarsulm is the widening of km 631+640 and km 641+060 to six lanes. This section is runs through a water preservation zone, type IIIa, protected under RiStWag. Because of this, a ...


    By NAUE GmbH & Co.KG

  • In-situ stabilization of contaminated sediments at former pesticide facility case study

    Project: West Doane Lake Location: Portland, OR Products: Organoclay® Organic Adsorption Media, Bentomat® ST Geosynthetic Clay Liner Background: Clean-up action was approved by the DEQ for contaminated sediments in West Doane Lake at the former Rhone Poulenc pesticide manufacturing facilitysite located in Northwest ...


    By CETCO

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you