Hemp FRRP Confined Lightweight Aggregate Concrete (LWAC) Circular Columns: Experimental and Analytical Study

Intrinsically, lightweight aggregate concrete (LWAC) suffers from the low compressive strength and deformation capacity. This restricts use of LWAC mainly to non-structural applications. Several studies have highlighted potential synthetic fiber-reinforced polymer (FRP) jackets for improving substandard properties LWAC. However, high costs associated with FRP are generally a concern. study identifies hemp rope (FRRP) wraps as alternative jackets. The salient features FRRP include its cost easy availability. Therefore, main question that needs be answered is: can strengthen low-cost jackets? To quantitatively explain effects aggregates on strength, 24 cylinders were tested in three groups. Group 1, 2, 3 comprised 0, 50, 100% natural replacements. peak stress was reduced by 34% 49% presence 50% aggregates, respectively. It concluded single layer 2 (i.e., replacement) sufficient enhance same level control cylinder 1 fabricated using only). At time, it took two layers external achieve strength. A positive correlation between number observed. Nonetheless, formed upper lower bounds terms confinement. Further interest, shifted brittle stress–strain response bi-linear all amounts aggregates. existing analytical models assessed predicting experimental results. From results, inferred none these predicted groups consistently.