An experimental study on properties of concrete produced with M-sand and E-sand

Abstract

Huge amount of E waste creates serious problem in all over the country. Recycle percentage of E waste is only 12.5. Due to limited natural resources, from printed circuit boards E-waste similar non-metal parts can be recuperated and mixed as an concrete constituent. So in various experiments E waste were used as replacement of fine and course aggregate. Utilizing E waste as ingredient of concrete reduces the use of natural ingredients as well as reduces the land fill using E waste and provide smart impact on environmental problems. Generation of the E-waste and use of concrete is rapidly increasing to meet the technological advancement and demand. Intension of this study is to inspect the performance of concrete by substituting manufactured sand by E- waste. In this research work, manufactured fine aggregate (M−sand) was partly replaced by E waste (E-sand) in different percentages (0%, 10%, 20%, 30% and 40%), with 0.45 water cement (W.C) ratio. With reference of Indian standard (IS) 10262:2019 guidelines, M30 grade concrete were prepared. The flexural, compressive, split tensile strength and chloride permeability tests were performed on concrete with various mix proportions and test results were correlate with results of reference concrete. The study reveals that, partly replacing of 20% factory-made sand (M- sand) by E waste (E- sand) yields maximum strength, better chloride permeability with improved micro structure than conventional concrete.