It has been revealed that laminar flames within aerosol mixtures become unstable more readily than gaseous flames and this increases the practical burning rate. However, studies on turbulent flames of aerosol mixtures of mono-dispersed droplets are limited. In this study, centrally ignited expanding flames were employed to quantify the burning rates in gaseous and aerosol flames. Iso-octane-air aerosols were generated by expansion of the gaseous pre-mixture to produce a homogeneously distributed suspension of fuel droplets. The effects of the presence of droplets and turbulence velocity in relation to the burning rates of the flame were also investigated.