The diagram above presents the schematic and illustrations of the test chamber used for 3D Swell Strain Setup, along with the pressure panel used to apply confining pressures to the soil specimen in the 3D swell tests. The volume change experienced by the soil specimen in the lateral direction is measured from the changes in the water chamber volume readings. The soil specimen encased in the chamber is inundated in the water tub and then allowed to undergo swelling in both diametrical and vertical directions. Details of the test apparatus and operating principles are presented in Pedarla (2013).
- Conceptualized soil model to interpret the macroswell behavior of soils from one-dimension to three-dimension soil swell testing
- Determine the total volumetric swell strain
- Puppala, A. J., Pedarla, A., Hoyos, L. R., Zapata, C., & Bheemasetti, T. V. (2016). A semi-empirical swell prediction model formulated from ‘clay mineralogy and unsaturated soil’properties. Engineering geology, 200, 114-121.
- Pedarla, A., Puppala, A. J., Hoyos, L. R., & Chittoori, B. (2016). Evaluation of swell behavior of expansive clays from internal specific surface and pore size distribution. Journal of Geotechnical and Geoenvironmental Engineering, 142(2), 04015080.
- Pedarla, Aravind. “SWCC and clay mineralogy based models for realistic simulation of swell behavior of expansive soils.” (2013).