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This paper describes the results of an investigation carried out to study the effect of variations in minimum density on relative density test results. The material selected for the investigation was obtained during construction of Kettle Generating Station. The test results were statistically analysed. For the materials tested, the influence of variations in minimum density on relative density results is startling. This creates a dilemma for effective quality control in the field in terms of enforcing the requirements of design as spelled out in a contract specification based on percentage relative density.
cohesionless soils, density (mass/volume), tests, earth fills, soil compacting, statistical analysis, construction control
Geotechnical engineer, Manitoba Hydro, Winnipeg, Man.
Soils and instrumentation supervisor, Kettle Generating Station, Manitoba Hydro, Gillam, Man.