Strength And Cost Comparison Of Normal And High Volume Fly Ash Concrete
Neeraj Kumar,  Dr. R.R. Singh
One of the challenges of the construction industry in the future will be the use of new high performance materials and technologies produced at reasonable cost and with lowest possible environmental impact.
A great deal of research and field experience on the use of fly ash in concrete has accumulated and been published during the past decade. Consequently, and for reason of both economy and performance, the use of fly ash in concrete construction is increasing. In particular, it is becoming clear that materials such as high performance concrete, high volume fly ash concrete, and RCC benefit from the use of fly ash.
In the present work, a brief review is presented of the theory and the design of M40 concrete containing 0%, 20%, 30%, 40%, 50% and 60% fly ash by mass of cementitious material. The compressive strength of both mix, flexural and tensile strength of M40 after 28 and 56 days at different fly ash are checked by casting cubes, beams and cylinder and compared with their controlled mixes. It is found that characteristic compressive strength of concrete can be achieved by replacing 50 percent of cement with fly ash.
After comparing the strength results, cost comparison is made to show how effective is to use high volume fly ash concrete both strength and cost wise. Comparison is made between both mixes at different fly ash content compared with controlled mixes cost wise. This investigation may open new path for the use of waste material in large quantity as raw material and to solve the disposal problem followed by techniques to reduce the environmental pollution and to achieve green construction concept.
Keywords- Fly Ash, Compressive Strength, Cost Comparison, Flexural Strength
Cite this Article
Neeraj Kumar,  Dr. R.R. Singh,   "Strength And Cost Comparison Of Normal And High Volume Fly Ash Concrete"
, International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.7, Issue 3, pp.145-153, July 2019, Available at :http://www.ijedr.org/papers/IJEDR1903026.pdf