“Fresh characteristics and compressive strength evaluation of self-compacting concrete prepared with ceramic waste tile and fly ash”

Abstract

This study aims to use fly ash as cement substitute and ceramic waste tile (CWT) as substitute for fine aggregate (FA), for creating self-compacting concrete (SCC). Fly ash content is kept constant at 30%, and CWT is used in varying proportions of 0%, 10%, 20%, 30% and 40% to create the self-compacting concrete mixtures. Total of five mixtures were cast along with one control mixture. The fresh characteristics were assessed using slump flow, U-box, T500 time, V-funnel and L-box experiments, while the mechanical characteristics was assessed using the compressive strength. The outcomes indicate that the fly ash has a positive impact on the fresh characteristics, whereas CWT affects the fresh characteristics of SCC negatively.In ceramic based SCC mixture, use of fly ash as a partial substitute to cement reduced the harmful effects of the CWT particles to a certain extent on the fresh characteristics. SCC mixture created with combined use of 30% fly ash and 30% CWT (i.e. F30C30 mix) exhibited the highest compressive strength.