Effect of Elevated Temperature on the Physical and Mechanical Properties of Crushed Clay Bricks Aggregate Concrete

Abstract:

In this study concrete block was produced with waste crushed clay bricks (CCB). CCB is used as a conventional coarse aggregate replacement with the range of 0, 25, 50 and 75%. Physical and mechanical properties of concrete blocks were examined at room temperature (25°C) and elevated temperatures of 400, 600 and 800°C. The results indicated that concrete specimens with 50% CCB exhibited the greatest flexural strength characteristics compared to that containing natural aggregates, whereas a slight decline indicated at the density and compressive strength. However, the specimens with 75% CCB have the highest residual strength at an elevated temperature of 800°C. Accordingly, it is suitable for load-bearing wall application when exposed to elevated temperature in confirmation to ASTM-C55. Keywords: Concrete Masonry Units; Crushed Clay Bricks; Elevated Temperature; Coarse Aggregate Replacement.

• Periodical: Key Engineering Materials (Volume 924)
• Pages: 223-231
• DOI: https://doi.org/10.4028/p-372w5h
• Online since: June 2022
• Authors: Aqil Mousa Almusawi, Rana Shabbar*, Qusay A. Jabal
• Keywords: Coarse Aggregate Replacement, Concrete Masonry Units, Crushed Clay Bricks, Elevated Temperature

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