Evaluation of lightweight Concrete Core Test Including Steel Bars

In many steel reinforced concrete members, bars are not avoidable during core drilling and the presence of these have a direct impact on results this test. This study aims to examine effect test recycled aggregate lightweight (LWC) cores. For purpose, one mix was made with total number 48 cores were taken from slab having dimensions 1 m width, 1.5 length 0.15m thickness. Each has 90 mm in diameter 150 height. Three different sizes (12, 16 20 mm) used six locations (25, 45 65 base (15 30 center line core. A crashed clay brick (CCB) as an alternative coarse aggregate. Compare density normal (2400 kg/m3), LWC able achieve nearly 20% reduction weight by fully replacing CCB. It been found that increases compressive strength is more noticeable when location bar near mid-height or centerline Also, influence increased increasing size bar.