Browsing by Author "Kelly, John A."
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Item Effects of geosynthetic fibres on the hydraulic conductivity of clay liners(University of New Brunswick, 1998) Kelly, John A.; Valsangkar, A.; Bischoff, P.Clay liners are used as "impermeable boundaries" to prevent the migration of leachate, due to their very low hydraulic conductivities. Clay (like all soils) however, is weak in tension; due to this fact clay liners are prone to tensile cracking when non-uniform loads act on them. These cracks dramatically increase the hydraulic conductivity, recent work has focused on reinforcing fibers being added to the clay to increase it's tensile strength. I preformed falling head tests on clays with 0, 0.25, 0.5 % reinforcing fibres at the optimum moisture content to determine if increased fibre content created a preferred path for fluid flow increasing the hydraulic conductivity.