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ABSTRACT
The study examined the influence of recycled waste on the mechanical properties of concrete. The aim of the study was to utilize materials which otherwise are considered waste in the environment.
The study involved the pulverization of glass obtained randomly from the bottling company. Sieve analysis of the glass used as aggregate replacement as well as the fine aggregate from Iguosa were carried out to BSEN933-1. Compressive strength tests were carried out at 3, 7, 14 and 21 days curing of the samples which measure 100mm x 100mm x 100mm. the cement used for the project was limestone Portland cement. A required amount of fine aggregate was weighed using a digital weighing balance. The granite as well as the required cement was weighed following specifications and % replacement. These constituents were all properly mixed in the electric concrete mixer at a w/c of 0.5. the experiment was carried out with the fine aggregate replacement of 15%, 30%, 50% and 100%.
It was observed that at 15% -30% replacement of fine aggregate, the increase in the weight resulted to the increase of the compressive strength for all curing periods tested. But for 50% and 100% replacement, the increase in weight resulted to the decrease of the compressive strength as the curing days exceeds 14days. The work recommends that for fine aggregate replacement using pulverized glass, the required percentage is 50%. The reuse of glass waste will help to reduce energy depletion in our environment.
