An Experimental Study on Flexural behaviour of Reinforced Concrete Beam by Partial Replacement of Fine Aggregate with Brick-Kiln-Ash

Brick dust is a waste material obtained from brick kiln industries. Now a day’s construction work is on large scale so demand of brick all increases so due to this brick kiln industries all over the world also increased. Tons of brick kiln dust comes out from such brick materials are used in filling low lying area and in construction work it also used in mixture of cement concrete to fill the voids. As brick kiln dust contains mixture of ashes (coal + wood) and dust particles (soil + sand).Concrete is an extensively used material in the world. Production of constituents of concrete leads to the depletion of the natural resources as well as it leads to the environmental pollution. Brick-Kiln-Ash is considered as a waste material in the Brick industries. Small size Brick kiln ash can be used as fine aggregate whereas large size (greater than 6 mm) particles can be used as coarse aggregate in concrete and CLSM as backfill. The feasibility of using Brick kiln ash in manufacture of masonry products as a partial replacement of coarse as well as fine aggregates. In this study, Brick-Kiln-Ash is used for the partial replacement of Fine aggregate. Fine aggregate is replaced with Brick-Kiln-Ash by 15%, 20%, 25% and 30% by weight and compared with the control mix without any replacement of Brick-Kiln-Ash. M30 grade of concrete was designed and constant water-cement ratio of 0.45 was used. Super Plasticizer was used to increase the workability. Mechanical properties of concrete such as Compression and Split tensile strength were evaluated. Results showed increase in strength till 25%, and then it got reduced for 30%. So, 25% replacement of Brick-Kiln-Ash was chosen as optimum value. Further, using the optimum value reinforced concrete beams was casted and results were compared with control beams without Ash for Flexural behavior. And also experimental values were compared with the theoretical values as per IS: 456-2000.