Out of plane performance of novel concrete sandwich panel using different geosynthetics

The main objective of the study is to investigate the flexural behaviour of concrete sandwich panels strengthened with geosynthetics. Two types of geosynthetic material are being used viz. plastic geogrid and polyester geogrid. An attempt has also been made to enhance the strength by using two different mixes. The panels are tested under a monotonically increasing load using a hydraulic jack. The load-deflection curves of the panels were examined to evaluate the effect of geosynthetics on the strength, stiffness, and deformability of panels. The result shows that plastic geogrid reinforced sandwich panels enhanced the flexural strength and ductility of panels compared with control specimens. Polyester geo-grid as reinforcement is also found to be relatively better in restoring the deformability and energy absorption of panels. The results show a gain of about 28% in plastic geogrid (SPGG); 36.8% in the case of polyester geogrid (SGi200), in comparison with the control specimen. The moment-curvature curves were also examined.