Abstract
Steel and concrete are frequently used to construct composite structures, making steel-concrete composites the most common choice. This research aims to compare the confinement effects observed in stone aggregate, brick aggregate, and recycled brick concrete. This analysis evaluates the impact of various thicknesses of steel angles (3mm and 4mm) and steel plates (3mm and 4mm) on the confinement effect. Each aggregate is studied using 18 cube specimens: six with 3mm steel angle confinement, six with 4mm steel angle confinement, and six without steel angle and plate confinement. This study employed Portland Composite Cement and coarse sand at 1:2:4 and 0.45 water-cement ratios. The concrete is carefully built to meet specifications and retain the slump value. Compressive strength testing is conducted on the concrete specimens at the 28-day and 60-day intervals. Simultaneously, the composite cubes are assessed for their suitability for confinement and vertical displacement. The findings reveal that stone aggregate with steel plate confinement demonstrates the highest compressive strength. Specifically, the compressive strength in stone aggregate with steel plate confinement is 3.04 and 3.52 times greater after 28 days and 60 days, respectively, compared to specimens without confinement.
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