Pullout Behavior of a Polymeric Strap in Compacted Dry Granular Material

Strap reinforcement is very commonly used as material in mechanically stabilized earth walls (MSEW). Metal straps are mostly material. However, humid climates, where the risk of damage to metal due corrosion high, use geosynthetic quite justified. In Croatian coastal region, were for two high MSEWs. both cases, backfill crushed stone aggregate from neighboring site was used. According relevant standards, it recommended that should have a uniformity coefficient Cu ≥ 4.0. To meet these requirements, usually necessary sieve and crush evaluate influence on friction interaction between strap aggregate, series pullout tests with different confining stresses grain size distributions conducted. The performed three coefficients aggregate. results confirmed justification higher than one strap, closely spaced straps, separated straps. showed lateral contributes force amount 16.1% total force.