Behaviour of cupola slag and TiO2 nanoparticles in concrete as partial replacement for coarse aggregates and cement

The current study mainly focussed on the utilisation of RHA and cupola slag in concrete specimens. Cupola slag was mainly replaced for coarse aggregates ranging from 0 to 100% at an interval of 10%. The concrete performance replaced with cupola slag and RHA were assessed based on mechanical (Compressive, split tensile) and durability (Acid attack, water absorption and RCPT) tests. Incorporation of cupola slag showed a positive effect on blended concrete specimens. The enhancement of blended concrete specimens mechanical strength is mainly attributed due to the pozzolanic behaviour of cupola slag and RHA. Acid attack and chloride ion penetration test showed positive result due to incorporation of cupola slag, whereas the water absorption test results showed opposing nature as compared to other mechanical and durability tests. The optimum percentage of cupola slag to be replaced for coarse aggregate was found in this research.