Mechanical and Thermal Properties Analysis of Recycled Concrete Aggregate on Its Fire Exposure

Abstract

Concrete constructions can be badly damaged by fire, and the damage can be estimated using knowledge of material properties. The major focus on using green materials instead of traditional materials are promoted. Recycled concrete aggregates (RCA) are nominated and analyzed its mechanical and thermal properties with its fire exposure. Conclusions are when using RCA to mix natural aggregate in concrete, and it will help obtaining a better performance of concrete at high temperatures (more than 50 percent). Rich mixed RCA outperforms standard mixed RCA and natural concrete aggregate regarding fire resistance and remaining compressive strength. The effects of varying mixing percentages above 50% mixed concrete and different time effects on concrete performance are examined. It suggests the replacement of RCA is suitable for modern building construction and fire safety sector from its performance post fire residual.