Abstract
Soil suction constitutes of the matric suction and the osmotic suction. Several studies have been conducted and reported by researchers that reveal the importance of the matric suction on unsaturated soil properties. However, not many efforts have been made to develop methodologies that can be employed for measuring osmotic suction of the soil and to understand its influence on unsaturated soil properties. With this in view, efforts were made to utilize the results of the pressure membrane extractor (PME) and the dewpoint potentiameter (WP4), which measure matric and total suction of the soil, respectively. Details of the methodology developed to achieve this are presented in this technical note.
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