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This manual presents procedures for performing advanced laboratory tests on fine-grained soils. It covers characterization tests, which determine soil composition and quantify the individual components of a soil, and behavioral tests, such as the Atterberg Limits tests that demonstrate how the fines fraction of a soil reacts when mixed with water and the Linear Shrinkage Test that demonstrates how much a soil shrinks.The material goes beyond traditional evaluation of basic soil behavior by presenting more advanced laboratory tests to characterize soil in more detail. These tests provide detailed compositional characteristics which identify subtle changes in conditions and vertical variations in the soil, and which help to explain unusual behavior.The book suits graduate students in geotechnical engineering, as well as practitioners and researchers.
Determination of Compositional Characteristics
Water Content
Phase Relationships of Soils – Determining Unit Weight and Calculating Voids Ratio, Porosity and Saturation.
Density of Solids (Specific Gravity)
Grain-Size Distribution
Organic Content
Carbonate Content
pH of Soils
Cation Exchange Capacity
Specific Surface Area
Methylene Blue Test
Pore Fluid Salinity
Determination of Behavioral Characteristics
Consistency of Fine-Grained Soils – Determination of Atterberg Liquid and Plastic Limits
Shrinkage Limit
Linear Shrinkage
Shrink Test
Free-Swell Index Tests
Dispersion
Initial Consumption of Lime
Lime Fixation Point
Hygroscopic Water Content
Soil Suction Using Filter Paper
Thermal Conductivity
Electrical Resistivity
Index Strength Tests and Sensitivity
Thixotropy