The Effect of Adding Recycled Waste on the Mechanical Properties of Concrete
Dalia Adil Rasool, Mais A. Abdulkarem, Mohammed Ali Abdulrehman
Abstract
Iron Filings (IF) and brick powder (BP) waste materials taken from steel workshops and factories and demolition of buildings respectively .create serious environmental problems ,so the main aim of this paper is to estimate the potency of employing the mixing of waste materials (Iron Filings and brick-powder) altogether as partly replace of cement and the fine-aggregate respectively in the composition of concrete which were mixed with a ratio of (1:2:4) and (W/C) ratio equal to (0.45). In this study the cement has been replaced by Iron Filings in the proportion of ( 10%, 20%,30 %and 40%) and fine aggregate replaced by waste brick powder in the proportion of (0%,5%,10%, and 15%) by weight of concrete mix simultaneously. In this paper, the split tensile strength , the compressive strength and flexural strength of the concretes mixtures were specified. The main results of this paper appeared that the (cement and sand) can be partially replaced by ( Iron Filings and brick-powder) in the concrete mixture and it has achieved the optimum percentage of replacement by (30%IF+10%BP). So the utilization of solid waste is required in an attempt to equilibrate between the construction request and environmental sustainability and as well as saving landfill space.