Partial Replacement Of Cement With Fly Ash And Cow Dung Ash By Using Quarry Dust As A Fine Aggregate
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 10
Abstract
A conventional concrete is a mixture of cement, coarse aggregate and fine aggregate. The cement is a main constitute in concrete which binds the coarse and fine aggregate. Use of cement in concrete industry is increasing day by day due to growing population and industrialization but production of cement leads to environmental problem due to emission of high amount of carbon dioxide and fine aggregate (River sand) obtain from Rivers. The availability of River sand now days is an issue due to restrictions on mining because of environmental issues which cause increase in price of River sand. The Fly ash is a by-product obtained from coal power station and disposal of fly ash is a big issue. Cow dung ash is a by-product which obtained by burning cow dung cakes. Cow dung cakes used as a fuel for domestic purposes whereas Quarry dust is a byproduct of crushing of rocks in crushing plants which can be use as a fine aggregate in a concrete partially or fully. Cow dung ash and Fly ash both posses cementitious properties and can be use as a partial replacement of binder (cement) in concrete. So, this work is carried out to study the effect on the properties of concrete and cement when cement is partially replaced by fly ash and cow dung ash at various percentages (0% fly ash+0% cow dung ash), (10%fly ash+5%Cow dung ash), (20%fly ash+8 cow dung ash), (30% fly ash +10% Cow dung ash) and (40% fly ash +12% cow dung ash) and Fine aggregate is fully replaced by Quarry dust. The tests are performed compressive strength, workability of concrete, standard consistency and initial final setting time of cement. The M25 mix is design for proposed mix calculated for compressive strength test cube prepared for different percentage of replacement and cured for 7, 14 and 28 days. The Results shows the maximum compressive strength for (10% fly ash +5% cow dung ash) in 28 days, workability of a concrete decreased as the percentage of fly ash and cow dung ash increases in concrete. It also shows that the standard consistency and initial final setting time increased as the percentage of fly ash and cow dung ash increases in the concrete.
Authors and Affiliations
Aman kumar
Keywords
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