Design and development of cell Oedometer device for measuring the volumetric changes resulting from temperature change

It is very important to the design and development of natural isolating materials Which are used in the cover-up of solid waste landfill, clay soils or mixtures of these soils and some additions used as an impermeable liner for construction of solid waste landfill, The permeability coefficient of the materials used in the impermeable system is the most important factors to prevent water leakage into the body of landfill site and to prevent the Leachate of leak into groundwater and soil surrounding the landfillsites. In this research has been the development and design Oedometer cell to study volumetric distortions occurring in these soils as a result of exposure of these soils to climatic conditions during the implementation of impermeable layer or after implementation due to rising temperatures in landfill because of biological interactions taking place at these landfill. It has been modified and the development of Oedometer cell to become a thermal cell So that it can control the degree of heat applied to the sample in the ring of device and then measure the volumetric changes in the sample, Oedometer cell has been linked to the permeability test system with variable head to measure the permeability of the testing sample, It was connected with the digital control , measuring and showing system for temperature and load and displacement.