A Study on Low Quality Fly Ash as  an Opportunity for Sustainable and  Economical Concrete

Jayraj Vinodsinh Solanki; Ronak Prakashkumar Patel; Jayeshkumar Pitroda

Volume : II, Issue : II, February - 2013

A Study on Low Quality Fly Ash as an Opportunity for Sustainable and Economical Concrete

Jayraj Vinodsinh Solanki, Ronak Prakashkumar Patel, Jayeshkumar Pitroda

Abstract :

As concrete usually has been produced by using high quality fly ash and without fly ash (standard concrete). By using high quality fly ash constituents, increase drastically the initial cost of concrete. The objectives of this research work were to intend to study the possibility of producing low cost concrete. To verify the impact of carbon content on fly ash on the strength and durability of concrete. For this purpose it was decided to enhance the �as received� fly ash by eliminating particles coarser than 75μm, thus reducing the carbon content by 50%. It was also observed that the carbon content did have little impact on the strength and durability of concrete. Applications of fly ash, which is technically, sound, environmentally safe for sustainable development. Use of fly ash in various engineering applications can solve the problem of disposal of fly ash and other purposes. The major constituents of most of the fly ashes are Silica (SiO2), alumina (Al2O3), ferric oxide (Fe2O3) and calcium oxide (CaO). The other minor constituent of the fly ash are MgO, Na2O, K2O, SO3, MnO, TiO2 and unburnt carbon. This paper is study on low quality fly ash as an opportunity for sustainable and economical concrete for a new millennium.