Experimental Investigation on Partial Replacementof Coarse Aggregateby Recycled Aggregatein Concrete
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 6
Abstract
Aggregate resulting from the processing of inorganic material which are previously used in the construction is known as recycled Aggregates. Nowadays using the Waste materials is a global trend. In the fieldof construction, this trend has gained a lot of importance due to depletion of natural aggregates and land fill spaces takes place. Recycled Aggregate is the material for the Future. Many Countries like European, American, Russian and Some Asian Countries has started the use of used (recycled) aggregate in number of Construction Project. Some Countries are also giving relaxation to the Infrastructural laws so that the use of recycled aggregates can be increased in Construction. This study also develops, best economic solution by using the demolished debris as recycled aggregates in structural Concrete to reduce the Environmental Impact and also keeps the construction costs down. The main goal of research is to investigate the hardness properties of used (recycled) aggregates and Recycled Concrete Aggregate including impact value test, Abrasion Test, Water Absorption, Specific Gravity test on aggregates while slump for fresh Concrete and Compressive Strength and Split Tensile Test on Hard Concrete, which provides a good understanding on various properties of concrete with Recycled Aggregates, which is substitute material to virgin coarse aggregate in structural concrete.The Laboratory Trials were conducted with the aggregate size 10-20mm to determine the properties of the recycled aggregate by studying the influence of limited percentage of recycled aggregate in concrete. In this research total eight batches of two mixes M20 with 0.5 W/c and M30 with W/c 0.42 consist of RA 00%, 20%, 40% & 60% of recycled aggregates Replacement. In Concrete the Workability decreases as the amount of recycled aggregates increases but in the end, it is Considerable in mix as it is still under the limits. This was done by Standard Slump Test. Result of Strength Characteristic shows a decrease in Split tensile and compressive Strength at RA60 specimen but at last most of the results is satisfactory and under the limits.
Authors and Affiliations
Mudasir Liaquat Shah, Muzamil Liaqat, Mirza Aamir Baig
Keywords
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