Investigations on the Behaviour of Transverse Steel Reinforcement with Low Dosage Nano-Silica

Abstract

This study investigates the behavior of lightweight aggregate concrete columns using transverse steel reinforcement. Twelve reinforced specimens were subjected to tests with an axial compressive load that gradually and monotonically increased over time. The research looked into two things: tie configurations and transverse steel. The fracture patterns of constrained lightweight aggregate concrete columns were significantly different from those of normal weight concrete specimens. Some researchers have suggested that the contact between coarse aggregate and cement paste is where failure planes may have traveled or evolved. By carefully selecting the tie pattern and providing appropriate steel reinforcement, lightweight aggregate concrete can be made to be extremely flexible and durable. Throughout the test, it is discovered that specimens housed in rectangular hoops with cross ties have adequate axial load-carrying capacity and ductility. An analytical model has been proposed that incorporates both the confinement efficiency factor (lt) and a coefficient (k) in order to accurately estimate peak stress and strain. The model is very accurate at predicting the future when compared to other models