Study on Replacement Level of Concrete Waste as Fine Aggregate in Concrete
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 2
Abstract
Fine aggregate (river sand) is the most important ingredients for making concrete but scarcity for river sand due to continuous exploitation and high transportation cost has become major problem in the field of construction. The main focus of this study is to give an alternate source for fine aggregates and also in order to prevent the over exploitation of river sand. In this study we are going to replace the fine aggregates by a crushed concrete which is obtained from demolished building. Concrete from the demolished building is crushed properly and used in concrete as fine aggregates. By this method we can able to reduce the waste as land filling material through the process of recycling. It acts as a ecofriendly material and also we can able to prevent the natural resources. There is no specification or any guideline when using recycled concrete aggregate in the constructions. In this experimental study to replace the fine aggregate by recycled aggregate in different ratio such as 0%, 10%, 20%, 30%, 40% and 50%. Recycled aggregate concrete is found to be 42% greater water absorption than that of natural aggregate. Beyond 30% replacement levels of concrete containing recycled fine aggregate shows 20-40% lower compressive strength is developed at the ages of 7, 28 and 56 days. Both tensile splitting and flexural strength are slightly decreased with the increase of the replacement ratio. The reduction in strength is 15% and 20% when compared to the reference concrete.
Authors and Affiliations
J. Vengadesh Marshall Raman, M. Sriram
Keywords
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- EP ID EP23127
- DOI http://doi.org/10.22214/ijraset.2017.2038
- Views 237
- Downloads 6
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