Advancing sand concrete sustainability: transforming quarry waste into high-quality crushed sand for superior properties

crossref(2024)

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Abstract
Abstract This research explores the potential of reusing quarry waste into limestone sand for the eco-friendly production of sand concrete, addressing environmental sustainability. The investigation comprised the preparation of five concrete mixtures with differing limestone sand ratios: 0%, 40%, 50%, 60%, and 70%. To evaluate the impact of limestone sand incorporation, we analysed physical and mechanical characteristics through tests such as density, compressive and flexural strength, Ultrasonic Pulse Velocity, Dynamic elastic modulus, and microstructure examination. Findings indicate substantial enhancements in sand concrete properties due to the integration of limestone sand, with the 60% ratio emerging as the most productive. The study underscores limestone sand's capability to not only improve sand concrete quality but also offer a sustainable method for quarry waste recycling. It demonstrates the beneficial impact of limestone sand used in sand concrete and advocates for its application as a sustainable quarry waste recycling strategy across the construction industry's various sectors.
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