Study on Strength and Durability Of Concrete With Partial Replacement of Fine Aggregate By Pond Ash

Use of alternate material in concrete such as industrial by-product Fly Ash and Pond Ash are an important eco efficiency drive.It is also the social responsibity of researchers to encourage the beneficial use of industrial by-product in order to preserve natural resources.The structures have to be designed taking care of both strength and durability factors.In recent years the durability of structures is given more importance along with the strength due to the behaviour of RCC structures which have assumed serious problems.This paper deals with suitability of Pond Ash from Raichur Thermal Power Station at different levels of replacement such as 0%,10%,20%,30% and 40% of Fine Aggregate in concrete .Detailed characterization of Pond Ash as Fine Aggregate and concrete design mix for M30 grade was arrived as per IS code .Studies on its compressive strength ,Flexural strength,Split tensile strength,Flexural strength of Beam and durability properties such as Sorptivity,Porosity,Water absorption tests were carried out and compared with conventional concrete specimens.A maximum of 30% partial replacement of fine aggregate by Pond Ash was observed as optimum replacement And compressive strength,flexural strength and split tensile strength at 7 &28 days curing period were tested. Total 6 number of beams were casted of which three beams were of conventional concrete and three beams were of optimum 30% replacement.The average ultimate load carrying capacity of conventional beam specimens was found to be 96.66KN and that of beams with optimum 30% replacement was found to be 102.33KN