Interaction between Hexagonal Wire Reinforcement and Rubber Shredded Tire with and without Sand Mixture

摘要

Scrap tires are undesired urban waste and are increasing at alarming rates every year. One of the possible practical applications consists of using shredded tires alone or volumes of scrap mixed with soil as lightweight backfill materials. The interaction between shredded rubber tire with and without sand mixture and the hexagonal wire reinforcement were observed by the in-soil pullout tests. Compared with the tests in sand, the in-soil pullout resistances of PVC-coated hexagonal wire mesh reinforcement in the shredded rubber tire with sand mixtures are smaller while the displacements required for fully mobilizing the pullout resistances are greater Based on a hyperbolic interface shear stress, the proposed interface model can capture overall the interaction between soil and hexagonal wire reinforcement regarding to the pullout force as well as the displacement along the reinforcement.