| Contents Notes |
"In this study, a limited set of laboratory test data on clay liner permeabilities was gathered to create a data bank suitable for a preliminary statistical analysis. The methods used to collect, organize and analyze the data are briefly described. In the main part of the study, the findings from the data analysis are presented. In the analysis, consideration was given to the degree of variability found in replicated permeability tests, the question of sample equilibration with water and chemicals, and the effect of the magnitude of gradient on permeability. Permeability test results using flexible-wall and fixed-wall permeameters were also compared. Consideration was also given to the effects of parameters of sample preparation, such as the molding water content, which may be strongly related to permeability, and the amount of variability of permeabilities that may be found in location-to-location sampling from within a source of liner material. In addition, the statistical aspects of the design and analysis of permeability experiments were discussed and alternate test protocols were suggested." |
