Description of the Work Done in the National Research Council Canada, Ottawa

Abstract

Laboratory investigations on the development of EFP in water and soils in the laboratory arose as a corollary to the main project of studying pile foundations in permafrost in the late 1970s and early 1980s, in the Division of Building Research (later known as the Institute for Research in Construction and now known as NRC-Construction Research Center), National Research Council Canada in Ottawa. Thus, the study of electrical freezing potentials arose as a serendipity. A lot of laboratory and field experiments were carried out by Parameswaran et al., in collaboration with universities. Special probes containing electrodes and thermistors were designed and built for the laboratory and for field measurements. These studies will now be presented with the results obtained in the laboratory and field installations. Electrical potential [probes and thermistors were installed in freezing lakes, in the active layer, inside the core of Pingos, among others], in Inuvik and Tuktoyaktuk in the Northwest territories.