Punching Behavior of RC Flat Slabs Containing Recycled Ceramic Aggregate

This paper examines the feasibility of replacing natural aggregate with recycled crushed ceramics in R.C flat slabs. Nowadays, many researchers are trying to use recycled ceramics as coarse aggregate in manufacturing concrete structures to decrease waste construction materials, and save raw materials. The experimental work was carried out on six slabs measuring 1650 x 1650 x 150 mm with a connected central column tested for punching shear. One slab was control without recycled ceramics aggregate; five slabs with recycled ceramics aggregate with different ratios of 20%, 35%, 50%, 60% and 70% were used.