A STUDY ON THE EFFECT OF PORE FLUID ON SWELLING, COMPRESSIBILITY AND PERMEABILITY CHARACTERISTICS OF BENTONITE-SAND MIXTURES DEPARTMENT OF CIVIL ENGINEERING CENTRAL INSTITUTE OF TECHNOLOGY, KOKRAJHAR के Ûġȣय Ĥौɮयोगकȧ संèथान, कोकराझार A thesis submitted for the partial fulfillment of Bachelor of Technology in CIVIL ENGINEERING Under the guidance and supervision of Mr. Shafi Kamal Rahman Assistant Professor (Department of Civil Engineering) Submitted by Sohail Ali (Gau-C-18/190) Alongbar Basumatary (Gau-C-18/214) Nilav Ranjan Hazarika (Gau-C-18/225) Pritika Wary (Gau-C-18/L-363) Ritul Rahman (Gau-C-18/L-376)