The use of gypsum to improve the resistance of an electrode in very high soil resistivity ground.

Abstract:
This paper discusses the use of gypsum to improve electrode resistance in poor soil resistivity areas. It reports on the results of measurements made on the installation of an electrode at a site with extremely high resistivity. The measurements show that gypsum effectively improved the electrode resistance to at least 50%, and more likely to about 30%, of the value when the soil is not treated. This method has the drawback of having to maintain the leaching compound on a regular basis, but it is shown that maintenance intervals of more than 10 years may be possible.