Using Crushed Clay Brick as Coarse Aggregate in Concrete

This paper provides the results of an experimental investigation into the use of crushed new clay brick as coarse aggregate in producing concrete. The present investigation is the first phase of a two-phase program to study the effects of using recycled masonry aggregate (predominately made of clay brick) with its impurities on the properties of fresh and hardened concrete. Four different types of new clay bricks with different compressive strengths were used in the investigation. Several physical and mechanical properties of fresh and hardened concrete produced from crushed clay brick aggregates were determined and compared to concrete produced using granite as a proven aggregate.