Mechanical and Durability Properties of Concrete Incorporating Flyash

Abstract

India is a second largest producer of cement in the world. about 300 million tones of cement had produced in 2012. Day to day life we using large amount of cement it causes to reduction of natural resources. By using coal 60% of electricity was produced per annum. fly ash are produced as by product in coal about 175 million tones. so as we trying to replace cement by using admixture fly ash. As per indian government norms that at least 10% of fly ash should be used during cement production.fly ash has zero percentage of binding property so we replacing the cement by fly ash up to 70% only and our motive are how the mechanical and durability properties perform in the concrete due to the replacing large amount of fly ash. we find that fly ash reduced chloride attacking in concrete, reducing the pores size, improved workability. Hence, higher volumes of fly ash can be used to replacecement in concrete mixes and care should be taken during the design mix to obtain the similar compressive strengths as that of the control mix. this can be achieved by reducing the water cement ratios of concrete mixes incorporated with higher volumes of fly ash.