Sand is pervious and non plastic in nature. Sand mixed with suitable bentonite content is generally used as a liner material at the waste disposal sites. The swelling behavior of mixture of expansive soils and non expansive soils occurs in three different phases: inter-void, primary and secondary swelling and this is mostly dependent on the mineralogical composition, size and shape of non swelling fraction particles. In the present study, different proportions of sand-bentonite were mixed to determine the swelling behavior at different consolidation conditions. The results indicated that fine sands lead to higher value of swelling and swelling pressure compared to coarse and medium sand.
Bentonie, type of sand, swelling, swelling pressure.
B. Ramu; Natarajan Narayanan, An Analysis of the Swelling Behavior of Bentonite Sand Mixtures using Consolidation, HCTL Open International Journal of Technology Innovations and Research (IJTIR), Volume 14, April 2015, eISSN: 2321-1814, ISBN (Print): 978-1-62951-946-3.