STP1293: Design and Performance Verification of a Soil-Bentonite Slurry Wall for the Hydraulic Isolation of Contaminated Sites

    Hollenweger, R
    Institute of Geotechnical Engineering (IGT), Swiss Federal Institute of Technology Zurich (ETHZ), Zurich,

    Martinenghi, L
    Institute of Geotechnical Engineering (IGT), Swiss Federal Institute of Technology Zurich (ETHZ), Zurich,

    Pages: 16    Published: Jan 1995


    Abstract

    The polluted ground of contaminated sites is often encapsulated by diaphragm walls, with concrete or concrete-stabilized earth being common construction materials in Europe. At the Institute of Geotechnical Engineering at the Swiss Federal Institute of Technology Zurich, new material mixtures that contain a high percentage of clay minerals have been developed over the past few years. Two experimental diaphragm walls, one in Switzerland andone in Germany, were constructed using such materials. A diaphragm wall 55 m deep using this mixture is currently being placed to encapsulate a contaminated landfill site in Germany. In this paper, an evaluation of the new mixture and results from both the experimental and full-scale walls, as well as complementary laboratory investigations, are presented and examined.

    Keywords:

    slurry walls, diaphragm walls, site encapsulation, diffusion, permeability, in situ, tests, wall construction technique


    Paper ID: STP16006S

    Committee/Subcommittee: D18.01

    DOI: 10.1520/STP16006S


    CrossRef ASTM International is a member of CrossRef.