Mixed cement containing fly ash for masonry and plastering work

The obtained results suggest that fairly coarse grade class-F fly ash can be incorporated into mortars as replacement of the mixed cement for joint and plastering. The main concern is the low water retention which would be minimized by using a better grade/finer fly ash or by incorporation of plasticiser. Mixed cement containing 20-40% fly ash can be used to make Type N or Type S mortars. Furthermore, relations between flow values and water to binder ratio (W/B) of the mixed cement containing fly ash are developed as a practical aid for selection and formulation of mortar for brick construction and rendering/plastering.