Effect of compaction and water content on the soil-water characteristic curves of fine-grained soils using WP4 dew point hygrometer for jolly blue clay

摘要

© 2020 Alpha Publishers.Soil Water Potential (SWP) is defined as the water potential energy per unit mass of water in a system. The total water potentials of a specimen are the sum of four component potentials (Ψt): matric (ψm), gravitational (ψg), pressure (ψp), and osmotic. In this research, a Dew point potentiometer (WP4) is used to measure the sum of the matric and osmotic potentials in a soil specimen and to create the Soli-Water Characteristics Curve (SWCC). Water content of 18 were prepared for compaction test for the Jolly blue clay. Humboldt Automatic Mechanical Compactor is used for the standard Proctor compaction test. It was found that the dry unit weight of the soil does not affect its suction and subsequently the Soil-Water Characteristic Curve (SWCC).