Shear Transfer Mechanism between CFRP Grid and EPS Rigid Foam Insulation of Precast Concrete Sandwich Panels

An experimental program was implemented to investigate the shear transfer mechanism of carbon-fiber-reinforced polymer (CFRP) grids and expanded polystyrene (EPS) rigid foam insulation in three wythe precast concrete sandwich wall panels. The purpose research measure flow capacity observe failure mode(s) panels manufactured with a CFRP grid between wythes. Six were examined by push-out tests which center pushed downward respect two outer It observed that average specimens having 2 (51 mm) thick higher than 4 (102 foam. In addition, stiffness decreased significantly when thickness EPS increased. mode for included relative displacement Test results showed tended fail rupture, pull-out, loss bond at concrete/foam interface. Further should be performed fully comprehend nature specific used insulation.