Time Dependent Effect OF Temperature On The Compressive Strength Of Concrete Made With Partially Replaced Pharmaceutical Blister As FIine Aggregate And Drink Can As Coarse Aggregate

Abstract

If a multi-storied building catches fire, the walls collapse first, followed by columns, beams, and slabs. The building collapsed, and many people died until the fire was extinguished by evacuating the people and belongings inside. The study aims to increase concrete strength and make it last longer in fire than normal concrete. Aluminum increases the strength of concrete by resisting fire and bonding better with concrete. Therefore, in this experiment, waste drink cans and pharmaceutical blisters have been used as aluminum. In this study, partially replaced (5%, 10%, 15%, & 20%) recycled pharmaceutical blister as fine aggregate and partially replaced (5%, 10%, 15%, & 20%) recycled drink cans as coarse aggregate. The pharmaceutical blister & drinks can sizes used were 2mm × 2mm and 17.5mm × 17.5mm, the water-cement ratio was 0.55, and for 54 cylinders, the concrete mixing ratio was 1:1.74:2.72, the concrete mixing ratio followed by mix design. According to the results, there was a decreased compressive strength of pharmaceutical blister mix concrete. After 28 days, the maximum compressive strength at 5% drink cans mixed concrete at normal temperature and 60 minutes at 1000℃ was 25.7MPa and 19.27MPa, respectively, whereas the maximum compressive strength for normal concrete, at normal temperature and 60 minutes at 1000℃, was 20.02MPa and 13.07Mpa, respectively, and for pharmaceutical blister mix concrete at 5%, 22.05MPa and 17.88MPa, respectively