Partial replacement of coarse aggregate by using ceramic tile aggregate in concrete

Abstract

There is a growing interest  in using  waste  materials  such  as  ceramics  as  alternative  aggregate materials for construction. The current study focuses on the mechanical properties of waste  ceramic  floor  tiles aggregate concrete. Ceramic  wastes  sourced  from  construction  and  demolition  wastes  were  separated from other debris and crushed using a quarry metal hammer. Ceramic tiles  were  sieved  into  coarse aggregates in line with standards. Other  materials  used  were  gravel,  river  sand,  cement  and  portable water. Workability  of  the  fresh  concrete  was checked  through  slump  test,  and  concrete  cubes  of  150 mm dimensions and cylinders of 100mm were cast in the laboratory. After 24 hr of casting, the concrete samples were demoulded and were cured by immersion in water tank at temperature of 22 °C.  The compressive and split-tensile strengths of the  hardened  concrete  samples  were  determined  after  curing them for 7 and 28 days. Results showed that both the compressive strength  and  split  tensile  strength increased appreciably with the curing age than the conventional concrete.