Abstract: “Recently, Nano particles have been gaining increasing attention in many fields to fabricate new materials with novel functions due to their unique physical and chemical properties. It has been found that physical properties of mortar, particularly strength and permeability significantly depend on its pore structure. Ultra-fine particles of Nano composites provide more homogenous distribution of hydrated products of concrete. This effect of micro and Nano particles enhances the durability of cement composites as well as the strength. In the present investigation, micro level materials such as Rice husk Ash (RHA) and Marble powder as a replacement of cement and Manufactured sand (M-Sand) quarry dust as a replacement of fine aggregate have been studied. In addition, influence of Nano particles on different properties of cement mortar was investigated with Rice husk ash as a well-known active pozzolano. Nano particles such as Al2O3, Fe2O3 of different percentage (0.5%, 1%, 1.5%, 2%) by wei”

Keywords: OrdinaryPortlandCement,Rice Husk Ash, Marble Powder, Nano Materials